1
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Davis LN, Walker ZJ, Reiman LT, Parzych SE, Stevens BM, Jordan CT, Forsberg PA, Sherbenou DW. MYC Inhibition Potentiates CD8+ T Cells Against Multiple Myeloma and Overcomes Immunomodulatory Drug Resistance. Clin Cancer Res 2024; 30:3023-3035. [PMID: 38723281 DOI: 10.1158/1078-0432.ccr-24-0256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 04/10/2024] [Accepted: 05/07/2024] [Indexed: 07/16/2024]
Abstract
PURPOSE Immunomodulatory drugs (IMiDs), such as lenalidomide and pomalidomide, are a cornerstone of multiple myeloma (MM) therapies, yet the disease inevitably becomes refractory. IMiDs exert cytotoxicity by inducing cereblon-dependent proteasomal degradation of IKZF1 and IKZF3, resulting in downregulation of the oncogenic transcription factors IRF4 and MYC. To date, clinical IMiD resistance independent of cereblon or IKZF1/3 has not been well explored. Here, we investigated the roles of IRF4 and MYC in this context. EXPERIMENTAL DESIGN Using bone marrow aspirates from patients with IMiD-naïve or refractory MM, we examined IKZF1/3 protein levels and IRF4/MYC gene expression following ex vivo pomalidomide treatment via flow cytometry and qPCR. We also assessed exvivo sensitivity to the MYC inhibitor MYCi975 using flow cytometry. RESULTS We discovered that although pomalidomide frequently led to IKZF1/3 degradation in MM cells, it did not affect MYC gene expression in most IMiD-refractory samples. We subsequently demonstrated that MYCi975 exerted strong anti-MM effects in both IMiD-naïve and -refractory samples. Unexpectedly, we identified a cluster of differentiation 8+ (CD8+ T) cells from patients with MM as crucial effectors of MYCi975-induced cytotoxicity in primary MM samples, and we discovered that MYCi975 enhanced the cytotoxic functions of memory CD8+ T cells. We lastly observed synergy between MYCi975 and pomalidomide in IMiD-refractory samples, suggesting that restoring MYC downregulation can re-sensitize refractory MM to IMiDs. CONCLUSIONS Our study supports the concept that MYC represents an Achilles' heel in MM across disease states and that MYCi975 may be a promising therapeutic for patients with MM, particularly in combination with IMiDs.
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Affiliation(s)
- Lorraine N Davis
- Division of Hematology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Zachary J Walker
- Division of Hematology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Lauren T Reiman
- Division of Hematology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Sarah E Parzych
- Division of Hematology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Brett M Stevens
- Division of Hematology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Craig T Jordan
- Division of Hematology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Peter A Forsberg
- Division of Hematology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Daniel W Sherbenou
- Division of Hematology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
- University of Colorado Cancer Center, University of Colorado Anschutz Medical Campus, Aurora, Colorado
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2
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Li B, Adam Eichhorn PJ, Chng WJ. Targeting the ubiquitin pathway in lymphoid malignancies. Cancer Lett 2024; 594:216978. [PMID: 38795760 DOI: 10.1016/j.canlet.2024.216978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/14/2024] [Accepted: 05/18/2024] [Indexed: 05/28/2024]
Abstract
Ubiquitination and related cellular processes control a variety of aspects in human cell biology, and defects in these processes contribute to multiple illnesses. In recent decades, our knowledge about the pathological role of ubiquitination in lymphoid cancers and therapeutic strategies to target the modified ubiquitination system has evolved tremendously. Here we review the altered signalling mechanisms mediated by the aberrant expression of cancer-associated E2s/E3s and deubiquitinating enzymes (DUBs), which result in the hyperactivation of oncoproteins or the frequently allied downregulation of tumour suppressors. We discuss recent highlights pertaining to the several different therapeutic interventions which are currently being evaluated to effectively block abnormal ubiquitin-proteasome pathway and the use of heterobifunctional molecules which recruit the ubiquitination system to degrade or stabilize non-cognate substrates. This review aids in comprehension of ubiquitination aberrance in lymphoid cancers and current targeting strategies and elicits further investigations to deeply understand the link between cellular ubiquitination and lymphoid pathogenesis as well as to ameliorate corresponding treatment interventions.
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Affiliation(s)
- Boheng Li
- College of Pharmaceutical Sciences, Southwest University, Chongqing, China
| | - Pieter Johan Adam Eichhorn
- Curtin Health Innovation Research Institute, Faculty of Health Sciences, Curtin University, Bentley, Western Australia, Australia; Curtin Medical School, Faculty of Health Sciences, Curtin University, Bentley, Western Australia, Australia.
| | - Wee-Joo Chng
- Cancer Science Institute of Singapore, Singapore, Singapore; Department of Haematology-Oncology, National University Cancer Institute of Singapore, Singapore, Singapore; Department of Medicine, School of Medicine, National University of Singapore, Singapore, Singapore.
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3
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Bolomsky A, Ceribelli M, Scheich S, Rinaldi K, Huang DW, Chakraborty P, Pham L, Wright GW, Hsiao T, Morris V, Choi J, Phelan JD, Holewinski RJ, Andresson T, Wisniewski J, Riley D, Pittaluga S, Hill E, Thomas CJ, Muppidi J, Young RM. IRF4 requires ARID1A to establish plasma cell identity in multiple myeloma. Cancer Cell 2024; 42:1185-1201.e14. [PMID: 38906156 PMCID: PMC11233249 DOI: 10.1016/j.ccell.2024.05.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 04/03/2024] [Accepted: 05/30/2024] [Indexed: 06/23/2024]
Abstract
Multiple myeloma (MM) is an incurable plasma cell malignancy that exploits transcriptional networks driven by IRF4. We employ a multi-omics approach to discover IRF4 vulnerabilities, integrating functional genomics screening, spatial proteomics, and global chromatin mapping. ARID1A, a member of the SWI/SNF chromatin remodeling complex, is required for IRF4 expression and functionally associates with IRF4 protein on chromatin. Deleting Arid1a in activated murine B cells disrupts IRF4-dependent transcriptional networks and blocks plasma cell differentiation. Targeting SWI/SNF activity leads to rapid loss of IRF4-target gene expression and quenches global amplification of oncogenic gene expression by MYC, resulting in profound toxicity to MM cells. Notably, MM patients with aggressive disease bear the signature of SWI/SNF activity, and SMARCA2/4 inhibitors remain effective in immunomodulatory drug (IMiD)-resistant MM cells. Moreover, combinations of SWI/SNF and MEK inhibitors demonstrate synergistic toxicity to MM cells, providing a promising strategy for relapsed/refractory disease.
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Affiliation(s)
- Arnold Bolomsky
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Michele Ceribelli
- Division of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD 20892, USA
| | - Sebastian Scheich
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Kristina Rinaldi
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Da Wei Huang
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Papiya Chakraborty
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Lisette Pham
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - George W Wright
- Biometric Research Branch, DCTD, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Tony Hsiao
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Vivian Morris
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jaewoo Choi
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - James D Phelan
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Ronald J Holewinski
- Protein Mass Spectrometry Group, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD 21701, USA
| | - Thorkell Andresson
- Protein Mass Spectrometry Group, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD 21701, USA
| | - Jan Wisniewski
- Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Deanna Riley
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Stefania Pittaluga
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Elizabeth Hill
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Craig J Thomas
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA; Division of Preclinical Innovation, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD 20892, USA
| | - Jagan Muppidi
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Ryan M Young
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
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Costacurta M, Sandow JJ, Maher B, Susanto O, Vervoort SJ, Devlin JR, Garama D, Condina MR, Steele JR, Kahrood HV, Gough D, Johnstone RW, Shortt J. Mapping the IMiD-dependent cereblon interactome using BioID-proximity labelling. FEBS J 2024. [PMID: 38975872 DOI: 10.1111/febs.17196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 04/17/2024] [Accepted: 05/24/2024] [Indexed: 07/09/2024]
Abstract
Immunomodulatory imide drugs (IMiDs) are central components of therapy for multiple myeloma (MM). IMiDs bind cereblon (CRBN), an adaptor for the CUL4-DDB1-RBX1 E3 ligase to change its substrate specificity and induce degradation of 'neosubstrate' transcription factors that are essential to MM cells. Mechanistic studies to date have largely focussed on mediators of therapeutic activity and insight into clinical IMiD toxicities is less developed. We adopted BioID2-dependent proximity labelling (BioID2-CRBN) to characterise the CRBN interactome in the presence and absence of various IMiDs and the proteasome inhibitor, bortezomib. We aimed to leverage this technology to further map CRBN interactions beyond what has been achieved by conventional proteomic techniques. In support of this approach, analysis of cells expressing BioID2-CRBN following IMiD treatment displayed biotinylation of known CRBN interactors and neosubstrates. We observed that bortezomib alone significantly modifies the CRBN interactome. Proximity labelling also suggested that IMiDs augment the interaction between CRBN and proteins that are not degraded, thus designating 'neointeractors' distinct from previously disclosed 'neosubstrates'. Here we identify Non-Muscle Myosin Heavy Chain IIA (MYH9) as a putative CRBN neointeractor that may contribute to the haematological toxicity of IMiDs. These studies provide proof of concept for proximity labelling technologies in the mechanistic profiling of IMiDs and related E3-ligase-modulating drugs.
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Affiliation(s)
- Matteo Costacurta
- Monash Haematology, Monash Health, Clayton, Australia
- Blood Cancer Therapeutics Laboratory, School of Clinical Sciences at Monash Health, Monash University, Clayton, Australia
| | - Jarrod J Sandow
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia
- Department of Medical Biology, The University of Melbourne, Parkville, Australia
| | - Belinda Maher
- Monash Haematology, Monash Health, Clayton, Australia
- Blood Cancer Therapeutics Laboratory, School of Clinical Sciences at Monash Health, Monash University, Clayton, Australia
| | - Olivia Susanto
- Monash Haematology, Monash Health, Clayton, Australia
- Blood Cancer Therapeutics Laboratory, School of Clinical Sciences at Monash Health, Monash University, Clayton, Australia
| | - Stephin J Vervoort
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia
| | - Jennifer R Devlin
- Translational Haematology Program, Peter MacCallum Cancer Centre, Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Australia
| | - Daniel Garama
- Centre for Cancer Research, Hudson Institute of Medical Research, Clayton, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Australia
| | - Mark R Condina
- Mass Dynamics, Melbourne, Australia
- Clinical & Health Sciences, University of South Australia, Adelaide, Australia
| | - Joel R Steele
- Monash Proteomics and Metabolomics Platform, Monash Biomedicine Discovery Institute, Monash University, Clayton, Australia
- Monash Bioinformatics Platform, Monash Biomedicine Discovery Institute, Monash University, Clayton, Australia
| | - Hossein V Kahrood
- Monash Proteomics and Metabolomics Platform, Monash Biomedicine Discovery Institute, Monash University, Clayton, Australia
| | - Daniel Gough
- Centre for Cancer Research, Hudson Institute of Medical Research, Clayton, Australia
- Department of Molecular and Translational Science, Monash University, Clayton, Australia
| | - Ricky W Johnstone
- Translational Haematology Program, Peter MacCallum Cancer Centre, Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Australia
| | - Jake Shortt
- Monash Haematology, Monash Health, Clayton, Australia
- Blood Cancer Therapeutics Laboratory, School of Clinical Sciences at Monash Health, Monash University, Clayton, Australia
- Translational Haematology Program, Peter MacCallum Cancer Centre, Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Australia
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5
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Zhang S, Nie S, Ma G, Shen M, Kong L, Zuo Z, Li Y. Identification of novel GSPT1 degraders by virtual screening and bioassay. Eur J Med Chem 2024; 273:116524. [PMID: 38795517 DOI: 10.1016/j.ejmech.2024.116524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 05/11/2024] [Accepted: 05/20/2024] [Indexed: 05/28/2024]
Abstract
GSPT1 plays crucial physiological functions, such as terminating protein translation, overexpressed in various tumors. It is a promising anti-tumor target, but is also considered as an "undruggable" protein. Recent studies have found that a class of small molecules can degrade GSPT1 through the "molecular glue" mechanism with strong antitumor activity, which is expected to become a new therapy for hematological malignancies. Currently available GSPT1 degraders are mostly derived from the scaffold of immunomodulatory imide drug (IMiD), thus more active compounds with novel structure remain to be found. In this work, using computer-assisted multi-round virtual screening and bioassay, we identified a non-IMiD acylhydrazone compound, AN5782, which can reduce the protein level of GPST1 and obviously inhibit the proliferation of tumor cells. Some analogs were obtained by a substructure search of AN5782. The structure-activity relationship analysis revealed possible interactions between these compounds and CRBN-GSPT1. Further biological mechanistic studies showed that AN5777 decreased GSPT1 remarkably through the ubiquitin-proteasome system, and its effective cytotoxicity was CRBN- and GSPT1-dependent. Furthermore, AN5777 displayed good antiproliferative activities against U937 and OCI-AML-2 cells, and dose-dependently induced G1 phase arrest and apoptosis. The structure found in this work could be good start for antitumor drug development.
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Affiliation(s)
- Shuqun Zhang
- Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Shiyun Nie
- Key Laboratory of Medicinal Chemistry for Natural Resource, Yunnan Key Laboratory of Research and Development for Natural Products, School of Pharmacy, Ministry of Education, Yunnan University, Kunming, 650500, China
| | - Guangchao Ma
- Key Laboratory of Medicinal Chemistry for Natural Resource, Yunnan Key Laboratory of Research and Development for Natural Products, School of Pharmacy, Ministry of Education, Yunnan University, Kunming, 650500, China
| | - Meiling Shen
- Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lingmei Kong
- Key Laboratory of Medicinal Chemistry for Natural Resource, Yunnan Key Laboratory of Research and Development for Natural Products, School of Pharmacy, Ministry of Education, Yunnan University, Kunming, 650500, China
| | - Zhili Zuo
- Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Yan Li
- Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China; Key Laboratory of Medicinal Chemistry for Natural Resource, Yunnan Key Laboratory of Research and Development for Natural Products, School of Pharmacy, Ministry of Education, Yunnan University, Kunming, 650500, China.
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6
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Sobierajski T, Małolepsza J, Pichlak M, Gendaszewska-Darmach E, Błażewska KM. The impact of E3 ligase choice on PROTAC effectiveness in protein kinase degradation. Drug Discov Today 2024; 29:104032. [PMID: 38789027 DOI: 10.1016/j.drudis.2024.104032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/30/2024] [Accepted: 05/15/2024] [Indexed: 05/26/2024]
Abstract
Proteolysis targeting chimera (PROTACs) provide a novel therapeutic approach that is revolutionizing drug discovery. The success of PROTACs largely depends on the combination of their three fragments: E3 ligase ligand, linker and protein of interest (POI)-targeting ligand. We summarize the pivotal significance of the precise combination of the E3 ligase ligand with the POI-recruiting warhead, which is crucial for the successful execution of cellular processes and achieving the desired outcomes. Therefore, the key to our selection was the use of at least two ligands recruiting two different ligases. This approach enables a direct comparison of the impacts of the specific ligases on target degradation.
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Affiliation(s)
- Tomasz Sobierajski
- Institute of Organic Chemistry, Lodz University of Technology, Łódź, Poland
| | - Joanna Małolepsza
- Institute of Organic Chemistry, Lodz University of Technology, Łódź, Poland
| | - Marta Pichlak
- Institute of Molecular and Industrial Biotechnology, Lodz University of Technology, Łódź, Poland
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7
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Testa U, Pelosi E, Castelli G, Leone G. Recent Advances in The Definition of the Molecular Alterations Occurring in Multiple Myeloma. Mediterr J Hematol Infect Dis 2024; 16:e2024062. [PMID: 38984097 PMCID: PMC11232684 DOI: 10.4084/mjhid.2024.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Accepted: 06/19/2024] [Indexed: 07/11/2024] Open
Abstract
Multiple myeloma (MM) is a disorder of the monoclonal plasma cells and is the second most common hematologic malignancy. MM initiation and progression are dependent upon complex genomic abnormalities. The current pathogenic model of MM includes two types of primary events, represented by chromosome translocations or chromosome number alterations resulting in hyperdiploidy. These primary molecular events are observed both in MM and in monoclonal gammopathy, its premalignant precursor. Subsequent genetic events allow the progression of monoclonal gammopathy to MM and, together with primary events, contribute to the genetic complexity and heterogeneity of MM. Newer therapies have considerably improved patient outcomes; however, MM remains an incurable disease and most patients experience multiple relapses. The dramatic progresses achieved in the analysis of the heterogeneous molecular features of different MM patients allowed a comprehensive molecular classification of MM and the definition of an individualized prognostic model to predict an individual MM patient's response to different therapeutic options. Despite these progresses, prognostic models fail to identify a significant proportion of patients destined to early relapse. Treatment strategies are increasingly. Based on disease biology, trials are enriched for high-risk MMs, whose careful definition and categorization requires DNA sequencing studies.
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Affiliation(s)
- Ugo Testa
- Istituto Superiore di Sanità, Roma, Italy
| | | | | | - Giuseppe Leone
- Department of Radiological and Hematological Sciences, Catholic University, Rome, Italy
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8
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Kagiou C, Cisneros JA, Farnung J, Liwocha J, Offensperger F, Dong K, Yang K, Tin G, Horstmann CS, Hinterndorfer M, Paulo JA, Scholes NS, Sanchez Avila J, Fellner M, Andersch F, Hannich JT, Zuber J, Kubicek S, Gygi SP, Schulman BA, Winter GE. Alkylamine-tethered molecules recruit FBXO22 for targeted protein degradation. Nat Commun 2024; 15:5409. [PMID: 38926334 PMCID: PMC11208438 DOI: 10.1038/s41467-024-49739-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 06/18/2024] [Indexed: 06/28/2024] Open
Abstract
Targeted protein degradation (TPD) relies on small molecules to recruit proteins to E3 ligases to induce their ubiquitylation and degradation by the proteasome. Only a few of the approximately 600 human E3 ligases are currently amenable to this strategy. This limits the actionable target space and clinical opportunities and thus establishes the necessity to expand to additional ligases. Here we identify and characterize SP3N, a specific degrader of the prolyl isomerase FKBP12. SP3N features a minimal design, where a known FKBP12 ligand is appended with a flexible alkylamine tail that conveys degradation properties. We found that SP3N is a precursor and that the alkylamine is metabolized to an active aldehyde species that recruits the SCFFBXO22 ligase for FKBP12 degradation. Target engagement occurs via covalent adduction of Cys326 in the FBXO22 C-terminal domain, which is critical for ternary complex formation, ubiquitylation and degradation. This mechanism is conserved for two recently reported alkylamine-based degraders of NSD2 and XIAP, thus establishing alkylamine tethering and covalent hijacking of FBXO22 as a generalizable TPD strategy.
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Affiliation(s)
- Chrysanthi Kagiou
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090, Vienna, Austria
| | - Jose A Cisneros
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090, Vienna, Austria
| | - Jakob Farnung
- Department of Molecular Machines and Signaling, Max Planck Institute of Biochemistry, Martinsried, Germany
| | - Joanna Liwocha
- Department of Molecular Machines and Signaling, Max Planck Institute of Biochemistry, Martinsried, Germany
| | - Fabian Offensperger
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090, Vienna, Austria
| | - Kevin Dong
- Department of Cell Biology, Harvard Medical School, Boston, MA, USA
| | - Ka Yang
- Department of Cell Biology, Harvard Medical School, Boston, MA, USA
| | - Gary Tin
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090, Vienna, Austria
| | - Christina S Horstmann
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090, Vienna, Austria
- St. Anna Children's Cancer Research Institute, Vienna, Austria
| | - Matthias Hinterndorfer
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090, Vienna, Austria
| | - Joao A Paulo
- Department of Cell Biology, Harvard Medical School, Boston, MA, USA
| | - Natalie S Scholes
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090, Vienna, Austria
| | - Juan Sanchez Avila
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090, Vienna, Austria
| | - Michaela Fellner
- Research Institute of Molecular Pathology, Vienna BioCenter, 1030, Vienna, Austria
| | - Florian Andersch
- Research Institute of Molecular Pathology, Vienna BioCenter, 1030, Vienna, Austria
| | - J Thomas Hannich
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090, Vienna, Austria
| | - Johannes Zuber
- Research Institute of Molecular Pathology, Vienna BioCenter, 1030, Vienna, Austria
| | - Stefan Kubicek
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090, Vienna, Austria
| | - Steven P Gygi
- Department of Cell Biology, Harvard Medical School, Boston, MA, USA
| | - Brenda A Schulman
- Department of Molecular Machines and Signaling, Max Planck Institute of Biochemistry, Martinsried, Germany
| | - Georg E Winter
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090, Vienna, Austria.
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9
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Barton BE, Collins MK, Chau CH, Choo-Wosoba H, Venzon DJ, Steinebach C, Garchitorena KM, Shah B, Sarin EL, Gütschow M, Figg WD. Preclinical Evaluation of a Novel Series of Polyfluorinated Thalidomide Analogs in Drug-Resistant Multiple Myeloma. Biomolecules 2024; 14:725. [PMID: 38927128 PMCID: PMC11201495 DOI: 10.3390/biom14060725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 06/09/2024] [Accepted: 06/13/2024] [Indexed: 06/28/2024] Open
Abstract
Immunomodulatory imide drugs (IMiDs) play a crucial role in the treatment landscape across various stages of multiple myeloma. Despite their evident efficacy, some patients may exhibit primary resistance to IMiD therapy, and acquired resistance commonly arises over time leading to inevitable relapse. It is critical to develop novel therapeutic options to add to the treatment arsenal to overcome IMiD resistance. We designed, synthesized, and screened a new class of polyfluorinated thalidomide analogs and investigated their anti-cancer, anti-angiogenic, and anti-inflammatory activity using in vitro and ex vivo biological assays. We identified four lead compounds that exhibit potent anti-myeloma, anti-angiogenic, anti-inflammatory properties using three-dimensional tumor spheroid models, in vitro tube formation, and ex vivo human saphenous vein angiogenesis assays, as well as the THP-1 inflammatory assay. Western blot analyses investigating the expression of proteins downstream of cereblon (CRBN) reveal that Gu1215, our primary lead candidate, exerts its activity through a CRBN-independent mechanism. Our findings demonstrate that the lead compound Gu1215 is a promising candidate for further preclinical development to overcome intrinsic and acquired IMiD resistance in multiple myeloma.
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Affiliation(s)
- Blaire E. Barton
- Molecular Pharmacology Section, Genitourinary Malignancies Branch, Center for Cancer Research, National Institutes of Health, Bethesda, MD 20892, USA
| | - Matthew K. Collins
- Molecular Pharmacology Section, Genitourinary Malignancies Branch, Center for Cancer Research, National Institutes of Health, Bethesda, MD 20892, USA
| | - Cindy H. Chau
- Molecular Pharmacology Section, Genitourinary Malignancies Branch, Center for Cancer Research, National Institutes of Health, Bethesda, MD 20892, USA
| | - Hyoyoung Choo-Wosoba
- Biostatics and Data Management Section, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - David J. Venzon
- Biostatics and Data Management Section, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Christian Steinebach
- Pharmaceutical Institute, Pharmaceutical & Medicinal Chemistry, University of Bonn, 53121 Bonn, Germany
| | - Kathleen M. Garchitorena
- Molecular Pharmacology Section, Genitourinary Malignancies Branch, Center for Cancer Research, National Institutes of Health, Bethesda, MD 20892, USA
| | - Bhruga Shah
- Inova Heart and Vascular Institute, Inova Health System, Falls Church, VA 22042, USA
| | - Eric L. Sarin
- Inova Heart and Vascular Institute, Inova Health System, Falls Church, VA 22042, USA
| | - Michael Gütschow
- Pharmaceutical Institute, Pharmaceutical & Medicinal Chemistry, University of Bonn, 53121 Bonn, Germany
| | - William D. Figg
- Molecular Pharmacology Section, Genitourinary Malignancies Branch, Center for Cancer Research, National Institutes of Health, Bethesda, MD 20892, USA
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10
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Amatangelo M, Flynt E, Stong N, Ray P, Van Oekelen O, Wang M, Ortiz M, Maciag P, Peluso T, Parekh S, van de Donk NWCJ, Lonial S, Thakurta A. Pharmacodynamic changes in tumor and immune cells drive iberdomide's clinical mechanisms of activity in relapsed and refractory multiple myeloma. Cell Rep Med 2024; 5:101571. [PMID: 38776914 PMCID: PMC11228401 DOI: 10.1016/j.xcrm.2024.101571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 03/20/2024] [Accepted: 04/23/2024] [Indexed: 05/25/2024]
Abstract
Iberdomide is a next-generation cereblon (CRBN)-modulating agent in the clinical development in multiple myeloma (MM). The analysis of biomarker samples from relapsed/refractory patients enrolled in CC-220-MM-001 (ClinicalTrials.gov: NCT02773030), a phase 1/2 study, shows that iberdomide treatment induces significant target substrate degradation in tumors, including in immunomodulatory agent (IMiD)-refractory patients or those with low CRBN levels. Additionally, some patients with CRBN genetic dysregulation who responded to iberdomide have a similar median progression-free survival (PFS) (10.9 months) and duration of response (DOR) (9.5 months) to those without CRBN dysregulation (11.2 month PFS, 9.4 month DOR). Iberdomide treatment promotes a cyclical pattern of immune stimulation without causing exhaustion, inducing a functional shift in T cells toward an activated/effector memory phenotype, including in triple-class refractory patients and those receiving IMiDs as a last line of therapy. This analysis demonstrates that iberdomide's clinical mechanisms of action are driven by both its cell-autonomous effects overcoming CRBN dysregulation in MM cells, and potent immune stimulation that augments anti-tumor immunity.
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Affiliation(s)
| | - Erin Flynt
- Translational Medicine, Bristol Myers Squibb, Summit, NJ, USA
| | - Nicholas Stong
- Predictive Sciences, Bristol Myers Squibb, Summit, NJ, USA
| | - Pradipta Ray
- Data Sciences, Bristol Myers Squibb, Lawrenceville, NJ, USA
| | - Oliver Van Oekelen
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Maria Wang
- Translational Research, Bristol Myers Squibb, San Diego, CA, USA
| | - Maria Ortiz
- Predictive Sciences, BMS Center for Innovation and Translational Research Europe (CITRE), A Bristol Myers Squibb Company, Sevilla, Spain
| | - Paulo Maciag
- Clinical Development, Bristol Myers Squibb, Summit, NJ, USA
| | - Teresa Peluso
- Clinical Development, Bristol Myers Squibb, Summit, NJ, USA
| | - Samir Parekh
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Niels W C J van de Donk
- Amsterdam University Medical Center, Vrije Universiteit Amsterdam, Department of Hematology, Amsterdam, the Netherlands
| | - Sagar Lonial
- Winship Cancer Institute, Emory University, Atlanta, GA, USA
| | - Anjan Thakurta
- Translational Medicine, Bristol Myers Squibb, Summit, NJ, USA; Oxford Translational Myeloma Centre (OTMC), Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK.
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11
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Van Oekelen O, Amatangelo M, Guo M, Upadhyaya B, Cribbs AP, Kelly G, Patel M, Kim-Schulze S, Flynt E, Lagana A, Gooding S, Merad M, Jagganath S, Pierceall WE, Oppermann U, Thakurta A, Parekh S. Iberdomide increases innate and adaptive immune cell subsets in the bone marrow of patients with relapsed/refractory multiple myeloma. Cell Rep Med 2024; 5:101584. [PMID: 38776911 PMCID: PMC11228551 DOI: 10.1016/j.xcrm.2024.101584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 02/11/2024] [Accepted: 04/30/2024] [Indexed: 05/25/2024]
Abstract
Iberdomide is a potent cereblon E3 ligase modulator (CELMoD agent) with promising efficacy and safety as a monotherapy or in combination with other therapies in patients with relapsed/refractory multiple myeloma (RRMM). Using a custom mass cytometry panel designed for large-scale immunophenotyping of the bone marrow tumor microenvironment (TME), we demonstrate significant increases of effector T and natural killer (NK) cells in a cohort of 93 patients with multiple myeloma (MM) treated with iberdomide, correlating findings to disease characteristics, prior therapy, and a peripheral blood immune phenotype. Notably, changes are dose dependent, associated with objective response, and independent of prior refractoriness to MM therapies. This suggests that iberdomide broadly induces innate and adaptive immune activation in the TME, contributing to its antitumor efficacy. Our approach establishes a strategy to study treatment-induced changes in the TME of patients with MM and, more broadly, patients with cancer and establishes rational combination strategies for iberdomide with immune-enhancing therapies to treat MM.
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Affiliation(s)
- Oliver Van Oekelen
- Department of Medicine, Mount Sinai Beth Israel, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Manman Guo
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Oxford University, Oxford, UK
| | - Bhaskar Upadhyaya
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Medicine, Hematology and Medical Oncology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Adam P Cribbs
- MRC Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Geoffrey Kelly
- Human Immune Monitoring Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Manishkumar Patel
- Human Immune Monitoring Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Seunghee Kim-Schulze
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Human Immune Monitoring Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Erin Flynt
- Translational Medicine, Bristol Myers Squibb, Summit, NJ, USA
| | - Alessandro Lagana
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Sarah Gooding
- MRC Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, UK
| | - Miriam Merad
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Human Immune Monitoring Center, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Sundar Jagganath
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Medicine, Hematology and Medical Oncology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Udo Oppermann
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Oxford University, Oxford, UK; Oxford Translational Myeloma Centre (OTMC), Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Anjan Thakurta
- Translational Medicine, Bristol Myers Squibb, Summit, NJ, USA; Oxford Translational Myeloma Centre (OTMC), Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Samir Parekh
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Medicine, Hematology and Medical Oncology, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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12
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Kogure Y, Handa H, Ito Y, Ri M, Horigome Y, Iino M, Harazaki Y, Kobayashi T, Abe M, Ishida T, Ito S, Iwasaki H, Kuroda J, Shibayama H, Sunami K, Takamatsu H, Tamura H, Hayashi T, Akagi K, Shinozaki T, Yoshida T, Mori I, Iida S, Maeda T, Kataoka K. ctDNA improves prognostic prediction for patients with relapsed/refractory MM receiving ixazomib, lenalidomide, and dexamethasone. Blood 2024; 143:2401-2413. [PMID: 38427753 DOI: 10.1182/blood.2023022540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 02/22/2024] [Accepted: 02/23/2024] [Indexed: 03/03/2024] Open
Abstract
ABSTRACT It remains elusive how driver mutations, including those detected in circulating tumor DNA (ctDNA), affect prognosis in relapsed/refractory multiple myeloma (RRMM). Here, we performed targeted-capture sequencing using bone marrow plasma cells (BMPCs) and ctDNA of 261 RRMM cases uniformly treated with ixazomib, lenalidomide, and dexamethasone in a multicenter, prospective, observational study. We detected 24 and 47 recurrently mutated genes in BMPC and ctDNA, respectively. In addition to clonal hematopoiesis-associated mutations, varying proportion of driver mutations, particularly TP53 mutations (59.2% of mutated cases), were present in only ctDNA, suggesting their subclonal origin. In univariable analyses, ctDNA mutations of KRAS, TP53, DIS3, BRAF, NRAS, and ATM were associated with worse progression-free survival (PFS). BMPC mutations of TP53 and KRAS were associated with inferior PFS, whereas KRAS mutations were prognostically relevant only when detected in both BMPC and ctDNA. A total number of ctDNA mutations in the 6 relevant genes was a strong prognostic predictor (2-year PFS rates: 57.3%, 22.7%, and 0% for 0, 1, and ≥2 mutations, respectively) and independent of clinical factors and plasma DNA concentration. Using the number of ctDNA mutations, plasma DNA concentration, and clinical factors, we developed a prognostic index, classifying patients into 3 categories with 2-year PFS rates of 57.9%, 28.6%, and 0%. Serial analysis of ctDNA mutations in 94 cases revealed that TP53 and KRAS mutations frequently emerge after therapy. Thus, we clarify the genetic characteristics and clonal architecture of ctDNA mutations and demonstrate their superiority over BMPC mutations for prognostic prediction in RRMM. This study is a part of the C16042 study, which is registered at www.clinicaltrials.gov as #NCT03433001.
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Affiliation(s)
- Yasunori Kogure
- Division of Molecular Oncology, National Cancer Center Research Institute, Tokyo, Japan
| | - Hiroshi Handa
- Department of Hematology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Yuta Ito
- Division of Molecular Oncology, National Cancer Center Research Institute, Tokyo, Japan
- Division of Clinical Oncology and Hematology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Masaki Ri
- Department of Hematology and Oncology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Yuichi Horigome
- Department of Hematology, Kitasato University School of Medicine, Sagamihara, Japan
| | - Masaki Iino
- Department of Hematology, Yamanashi Prefectural Central Hospital, Kofu, Japan
| | - Yoriko Harazaki
- Department of Hematology, Miyagi Cancer Center, Natori, Japan
| | - Takahiro Kobayashi
- Department of Hematology, Nephrology and Rheumatology, Akita University Graduate School of Medicine, Akita, Japan
| | - Masahiro Abe
- Department of Hematology, Kawashima Hospital, Tokushima, Japan
| | - Tadao Ishida
- Department of Hematology, Japanese Red Cross Medical Center, Tokyo, Japan
| | - Shigeki Ito
- Department of Hematology and Oncology, Iwate Medical University Hospital, Iwate, Japan
| | - Hiromi Iwasaki
- Department of Hematology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Junya Kuroda
- Division of Hematology and Oncology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hirohiko Shibayama
- Department of Hematology, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Kazutaka Sunami
- Department of Hematology, National Hospital Organization Okayama Medical Center, Okayama, Japan
| | | | - Hideto Tamura
- Department of Hematology, Nippon Medical School, Tokyo, Japan
| | - Toshiaki Hayashi
- Department of Hematology, Teine Keijinkai Hospital, Sapporo, Japan
| | - Kiwamu Akagi
- Division of Molecular Diagnosis and Cancer Prevention, Saitama Cancer Center, Saitama, Japan
| | - Tomohiro Shinozaki
- Department of Information and Computer Technology, Faculty of Engineering, Tokyo University of Science, Tokyo, Japan
| | | | - Ikuo Mori
- Takeda Pharmaceutical Company Limited, Tokyo, Japan
| | - Shinsuke Iida
- Department of Hematology and Oncology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Takahiro Maeda
- Division of Precision Medicine, Kyushu University Graduate School of Medical Sciences, Fukuoka, Japan
| | - Keisuke Kataoka
- Division of Molecular Oncology, National Cancer Center Research Institute, Tokyo, Japan
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
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13
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Huynh T, Rodriguez-Rodriguez S, Danilov AV. Bruton Tyrosine Kinase Degraders in B-Cell Malignancies. Mol Cancer Ther 2024; 23:619-626. [PMID: 38693903 DOI: 10.1158/1535-7163.mct-23-0520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 02/02/2024] [Accepted: 02/29/2024] [Indexed: 05/03/2024]
Affiliation(s)
- Tiana Huynh
- City of Hope National Medical Center, Duarte, California
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14
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Wang Y, Wei T, Zhao M, Huang A, Sun F, Chen L, Lin R, Xie Y, Zhang M, Xu S, Sun Z, Hong L, Wang R, Tian R, Li G. Alkenyl oxindole is a novel PROTAC moiety that recruits the CRL4DCAF11 E3 ubiquitin ligase complex for targeted protein degradation. PLoS Biol 2024; 22:e3002550. [PMID: 38768083 PMCID: PMC11104598 DOI: 10.1371/journal.pbio.3002550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 04/17/2024] [Indexed: 05/22/2024] Open
Abstract
Alkenyl oxindoles have been characterized as autophagosome-tethering compounds (ATTECs), which can target mutant huntingtin protein (mHTT) for lysosomal degradation. In order to expand the application of alkenyl oxindoles for targeted protein degradation, we designed and synthesized a series of heterobifunctional compounds by conjugating different alkenyl oxindoles with bromodomain-containing protein 4 (BRD4) inhibitor JQ1. Through structure-activity relationship study, we successfully developed JQ1-alkenyl oxindole conjugates that potently degrade BRD4. Unexpectedly, we found that these molecules degrade BRD4 through the ubiquitin-proteasome system, rather than the autophagy-lysosomal pathway. Using pooled CRISPR interference (CRISPRi) screening, we revealed that JQ1-alkenyl oxindole conjugates recruit the E3 ubiquitin ligase complex CRL4DCAF11 for substrate degradation. Furthermore, we validated the most potent heterobifunctional molecule HL435 as a promising drug-like lead compound to exert antitumor activity both in vitro and in a mouse xenograft tumor model. Our research provides new employable proteolysis targeting chimera (PROTAC) moieties for targeted protein degradation, providing new possibilities for drug discovery.
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Affiliation(s)
- Ying Wang
- School of Pharmacy, Shenzhen University Medical School, Shenzhen University, Shenzhen, China
| | - Tianzi Wei
- Key University Laboratory of Metabolism and Health of Guangdong, Department of Medical Neuroscience, School of Medicine, Southern University of Science and Technology, Shenzhen, China
| | - Man Zhao
- School of Pharmacy, Shenzhen University Medical School, Shenzhen University, Shenzhen, China
| | - Aima Huang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Fan Sun
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Lu Chen
- School of Pharmacy, Shenzhen University Medical School, Shenzhen University, Shenzhen, China
| | - Risheng Lin
- Key University Laboratory of Metabolism and Health of Guangdong, Department of Medical Neuroscience, School of Medicine, Southern University of Science and Technology, Shenzhen, China
| | - Yubao Xie
- School of Pharmacy, Shenzhen University Medical School, Shenzhen University, Shenzhen, China
| | - Ming Zhang
- School of Pharmacy, Shenzhen University Medical School, Shenzhen University, Shenzhen, China
| | - Shiyu Xu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Zhihui Sun
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Liang Hong
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Rui Wang
- School of Pharmacy, Shenzhen University Medical School, Shenzhen University, Shenzhen, China
- Institute of Materia Medica and Research Unit of Peptide Science, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ruilin Tian
- Key University Laboratory of Metabolism and Health of Guangdong, Department of Medical Neuroscience, School of Medicine, Southern University of Science and Technology, Shenzhen, China
| | - Guofeng Li
- School of Pharmacy, Shenzhen University Medical School, Shenzhen University, Shenzhen, China
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15
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Lin Z, Zhang Y, Liu X, Luo H, Li Q, Gao Q, Wang X, Wen J, Li L, Feng Y, Wang F, Huang J, Zhai X, Zhang L, Niu T, Zheng Y. Decreased RNA-binding protein heterogeneous nuclear ribonucleoprotein U improves multiple myeloma sensitivity to lenalidomide. Br J Haematol 2024. [PMID: 38685577 DOI: 10.1111/bjh.19468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 03/20/2024] [Accepted: 04/03/2024] [Indexed: 05/02/2024]
Abstract
Multiple myeloma (MM) is an incurable plasma cell cancer in the bone marrow. Immunomodulatory drugs, such as lenalidomide (LEN) and pomalidomide, are backbone agents in MM treatment, and LEN resistance is commonly seen in the MM clinic. In this study, we presented that heterogeneous nuclear ribonucleoprotein U (hnRNPU) affected MM resistance to LEN via the regulation of target mRNA translation. hnRNPULow MM cells exhibited upregulated CRBN and IKZF1 proteins, stringent IKZF1/3 protein degradation upon LEN addition and increased sensitivity to LEN. RNA pulldown assays and RNA electrophoretic mobility shift assays revealed that hnRNPU bound to the 3'-untranslated region of CRBN and IKZF1 mRNA. A sucrose gradient assay suggested that hnRNPU specifically regulated CRBN and IKZF1 mRNA translation. The competition of hnRNPU binding to its target mRNAs by small RNAs with hnRNPU-binding sites restored MM sensitivity to LEN. hnRNPU function in vivo was confirmed in an immunocompetent MM mouse model constructed by the inoculation of Crbn-humanized murine 5TGM1 cells into CrbnI391V/+ mice. Overall, this study suggests a novel mechanism of LEN sensitivity in which hnRNPU represses CRBN and IKZF1 mRNA translation.
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Affiliation(s)
- Zhimei Lin
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, China
- Department of Hematology, The Affiliated Hospital of Chengdu University, Chengdu, China
| | - Yue Zhang
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, China
| | - Xiang Liu
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, China
| | - Hongmei Luo
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, China
| | - Qian Li
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, China
| | - Qianwen Gao
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, China
| | - Xin Wang
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, China
| | - Jingjing Wen
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, China
- Department of Hematology, Mian-Yang Central Hospital, Mianyang, China
| | - Linfeng Li
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, China
| | - Yu Feng
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, China
| | - Fangfang Wang
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, China
| | - Jingcao Huang
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, China
| | - Xinyu Zhai
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, China
| | - Li Zhang
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, China
| | - Ting Niu
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, China
| | - Yuhuan Zheng
- Department of Hematology, West China Hospital, Sichuan University, Chengdu, China
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16
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Lee H, Neri P, Bahlis NJ. Cereblon-Targeting Ligase Degraders in Myeloma: Mechanisms of Action and Resistance. Hematol Oncol Clin North Am 2024; 38:305-319. [PMID: 38302306 DOI: 10.1016/j.hoc.2024.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Cereblon-targeting degraders, including immunomodulatory imide drugs lenalidomide and pomalidomide alongside cereblon E3 ligase modulators like iberdomide and mezigdomide, have demonstrated significant anti-myeloma effects. These drugs play a crucial role in diverse therapeutic approaches for multiple myeloma (MM), emphasizing their therapeutic importance across various disease stages. Despite their evident efficacy, approximately 5% to 10% of MM patients exhibit primary resistance to lenalidomide, and resistance commonly develops over time. Understanding the intricate mechanisms of action and resistance to this drug class becomes imperative for refining and advancing novel therapeutic combinations.
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Affiliation(s)
- Holly Lee
- Arnie Charbonneau Cancer Institute, University of Calgary, Heritage Medical Research Building, 3330 Hospital Drive N.W., Calgary, Alberta T2N 4N1, Canada
| | - Paola Neri
- Arnie Charbonneau Cancer Institute, University of Calgary, Heritage Medical Research Building, 3330 Hospital Drive N.W., Calgary, Alberta T2N 4N1, Canada
| | - Nizar J Bahlis
- Arnie Charbonneau Cancer Institute, University of Calgary, Heritage Medical Research Building, 3330 Hospital Drive N.W., Calgary, Alberta T2N 4N1, Canada.
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17
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Chowdhury B, Garg S, Ni W, Sattler M, Sanchez D, Meng C, Akatsu T, Stone R, Forrester W, Harrington E, Buhrlage SJ, Griffin JD, Weisberg E. Synergy between BRD9- and IKZF3-Targeting as a Therapeutic Strategy for Multiple Myeloma. Cancers (Basel) 2024; 16:1319. [PMID: 38610997 PMCID: PMC11010819 DOI: 10.3390/cancers16071319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 03/21/2024] [Accepted: 03/22/2024] [Indexed: 04/14/2024] Open
Abstract
Progress in the treatment of multiple myeloma (MM) has resulted in improvement in the survival rate. However, there is still a need for more efficacious and tolerated therapies. We and others have shown that bromodomain-containing protein 9 (BRD9), a member of the non-canonical SWI/SNF chromatin remodeling complex, plays a role in MM cell survival, and targeting BRD9 selectively blocks MM cell proliferation and synergizes with IMiDs. We found that synergy in vitro is associated with the downregulation of MYC and Ikaros proteins, including IKZF3, and overexpression of IKZF3 or MYC could partially reverse synergy. RNA-seq analysis revealed synergy to be associated with the suppression of pathways associated with MYC and E2F target genes and pathways, including cell cycle, cell division, and DNA replication. Stimulated pathways included cell adhesion and immune and inflammatory response. Importantly, combining IMiD treatment and BRD9 targeting, which leads to the downregulation of MYC protein and upregulation of CRBN protein, was able to override IMiD resistance of cells exposed to iberdomide in long-term culture. Taken together, our results support the notion that combination therapy based on agents targeting BRD9 and IKZF3, two established dependencies in MM, represents a promising novel therapeutic strategy for MM and IMiD-resistant disease.
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Affiliation(s)
- Basudev Chowdhury
- Department of Medical Oncology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02215, USA; (B.C.); (S.G.); (W.N.); (M.S.); (D.S.); (T.A.); (R.S.)
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
| | - Swati Garg
- Department of Medical Oncology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02215, USA; (B.C.); (S.G.); (W.N.); (M.S.); (D.S.); (T.A.); (R.S.)
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
| | - Wei Ni
- Department of Medical Oncology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02215, USA; (B.C.); (S.G.); (W.N.); (M.S.); (D.S.); (T.A.); (R.S.)
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
| | - Martin Sattler
- Department of Medical Oncology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02215, USA; (B.C.); (S.G.); (W.N.); (M.S.); (D.S.); (T.A.); (R.S.)
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
| | - Dana Sanchez
- Department of Medical Oncology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02215, USA; (B.C.); (S.G.); (W.N.); (M.S.); (D.S.); (T.A.); (R.S.)
| | - Chengcheng Meng
- Department of Medical Oncology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02215, USA; (B.C.); (S.G.); (W.N.); (M.S.); (D.S.); (T.A.); (R.S.)
| | - Taisei Akatsu
- Department of Medical Oncology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02215, USA; (B.C.); (S.G.); (W.N.); (M.S.); (D.S.); (T.A.); (R.S.)
| | - Richard Stone
- Department of Medical Oncology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02215, USA; (B.C.); (S.G.); (W.N.); (M.S.); (D.S.); (T.A.); (R.S.)
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
| | | | | | - Sara J. Buhrlage
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, MA 02215, USA;
| | - James D. Griffin
- Department of Medical Oncology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02215, USA; (B.C.); (S.G.); (W.N.); (M.S.); (D.S.); (T.A.); (R.S.)
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
| | - Ellen Weisberg
- Department of Medical Oncology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA 02215, USA; (B.C.); (S.G.); (W.N.); (M.S.); (D.S.); (T.A.); (R.S.)
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
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18
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Kanaoka D, Yamada M, Yokoyama H, Nishino S, Kunimura N, Satoyoshi H, Wakabayashi S, Urabe K, Ishii T, Nakanishi M. FPFT-2216, a Novel Anti-lymphoma Compound, Induces Simultaneous Degradation of IKZF1/3 and CK1α to Activate p53 and Inhibit NFκB Signaling. CANCER RESEARCH COMMUNICATIONS 2024; 4:312-327. [PMID: 38265263 PMCID: PMC10846380 DOI: 10.1158/2767-9764.crc-23-0264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 09/03/2023] [Accepted: 01/19/2024] [Indexed: 01/25/2024]
Abstract
Reducing casein kinase 1α (CK1α) expression inhibits the growth of multiple cancer cell lines, making it a potential therapeutic target for cancer. Herein, we evaluated the antitumor activity of FPFT-2216-a novel low molecular weight compound-in lymphoid tumors and elucidated its molecular mechanism of action. In addition, we determined whether targeting CK1α with FPFT-2216 is useful for treating hematopoietic malignancies. FPFT-2216 strongly degraded CK1α and IKAROS family zinc finger 1/3 (IKZF1/3) via proteasomal degradation. FPFT-2216 exhibited stronger inhibitory effects on human lymphoma cell proliferation than known thalidomide derivatives and induced upregulation of p53 and its transcriptional targets, namely, p21 and MDM2. Combining FPFT-2216 with an MDM2 inhibitor exhibited synergistic antiproliferative activity and induced rapid tumor regression in immunodeficient mice subcutaneously transplanted with a human lymphoma cell line. Nearly all tumors in mice disappeared after 10 days; this was continuously observed in 5 of 7 mice up to 24 days after the final FPFT-2216 administration. FPFT-2216 also enhanced the antitumor activity of rituximab and showed antitumor activity in a patient-derived diffuse large B-cell lymphoma xenograft model. Furthermore, FPFT-2216 decreased the activity of the CARD11/BCL10/MALT1 (CBM) complex and inhibited IκBα and NFκB phosphorylation. These effects were mediated through CK1α degradation and were stronger than those of known IKZF1/3 degraders. In conclusion, FPFT-2216 inhibits tumor growth by activating the p53 signaling pathway and inhibiting the CBM complex/NFκB pathway via CK1α degradation. Therefore, FPFT-2216 may represent an effective therapeutic agent for hematopoietic malignancies, such as lymphoma. SIGNIFICANCE We found potential vulnerability to CK1α degradation in certain lymphoma cells refractory to IKZF1/3 degraders. Targeting CK1α with FPFT-2216 could inhibit the growth of these cells by activating p53 signaling. Our study demonstrates the potential therapeutic application of CK1α degraders, such as FPFT-2216, for treating lymphoma.
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Affiliation(s)
- Daiki Kanaoka
- Department of Scientific Research, Fujimoto Pharmaceutical Corporation, Nishi-otsuka, Matsubara, Osaka, Japan
| | - Mitsuo Yamada
- Department of Scientific Research, Fujimoto Pharmaceutical Corporation, Nishi-otsuka, Matsubara, Osaka, Japan
| | - Hironori Yokoyama
- Department of Scientific Research, Fujimoto Pharmaceutical Corporation, Nishi-otsuka, Matsubara, Osaka, Japan
| | - Satoko Nishino
- Department of Scientific Research, Fujimoto Pharmaceutical Corporation, Nishi-otsuka, Matsubara, Osaka, Japan
| | - Naoshi Kunimura
- Department of Scientific Research, Fujimoto Pharmaceutical Corporation, Nishi-otsuka, Matsubara, Osaka, Japan
| | - Hiroshi Satoyoshi
- Department of Scientific Research, Fujimoto Pharmaceutical Corporation, Nishi-otsuka, Matsubara, Osaka, Japan
| | - Shota Wakabayashi
- Department of Scientific Research, Fujimoto Pharmaceutical Corporation, Nishi-otsuka, Matsubara, Osaka, Japan
| | - Kazunori Urabe
- Department of Scientific Research, Fujimoto Pharmaceutical Corporation, Nishi-otsuka, Matsubara, Osaka, Japan
| | - Takafumi Ishii
- Department of Scientific Research, Fujimoto Pharmaceutical Corporation, Nishi-otsuka, Matsubara, Osaka, Japan
| | - Masato Nakanishi
- Department of Scientific Research, Fujimoto Pharmaceutical Corporation, Nishi-otsuka, Matsubara, Osaka, Japan
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19
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Chojnacka M, Diamond B, Ziccheddu B, Rustad E, Maclachlan K, Papadimitriou M, Boyle EM, Blaney P, Usmani S, Morgan G, Landgren O, Maura F. Impact of Rare Structural Variant Events in Newly Diagnosed Multiple Myeloma. Clin Cancer Res 2024; 30:575-585. [PMID: 37939148 PMCID: PMC10841766 DOI: 10.1158/1078-0432.ccr-23-1045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 07/19/2023] [Accepted: 11/07/2023] [Indexed: 11/10/2023]
Abstract
PURPOSE Whole-genome sequencing (WGS) of patients with newly diagnosed multiple myeloma (NDMM) has shown recurrent structural variant (SV) involvement in distinct regions of the genome (i.e., hotspots) and causing recurrent copy-number alterations. Together with canonical immunoglobulin translocations, these SVs are recognized as "recurrent SVs." More than half of SVs were not involved in recurrent events. The significance of these "rare SVs" has not been previously examined. EXPERIMENTAL DESIGN In this study, we utilize 752 WGS and 591 RNA sequencing data from patients with NDMM to determine the role of rare SVs in myeloma pathogenesis. RESULTS Ninety-four percent of patients harbored at least one rare SV event. Rare SVs showed an SV class-specific enrichment within genes and superenhancers associated with outlier gene expression. Furthermore, known myeloma driver genes recurrently impacted by point mutations were dysregulated by rare SVs. CONCLUSIONS Overall, we demonstrate the association of rare SVs with aberrant gene expression supporting a potential driver role in myeloma pathogenesis.
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Affiliation(s)
- Monika Chojnacka
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Benjamin Diamond
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Bachisio Ziccheddu
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Even Rustad
- Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Kylee Maclachlan
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Marios Papadimitriou
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Eileen M. Boyle
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - Patrick Blaney
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - Saad Usmani
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Gareth Morgan
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - Ola Landgren
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Francesco Maura
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
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20
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Neri P, Barwick BG, Jung D, Patton JC, Maity R, Tagoug I, Stein CK, Tilmont R, Leblay N, Ahn S, Lee H, Welsh SJ, Riggs DL, Stong N, Flynt E, Thakurta A, Keats JJ, Lonial S, Bergsagel PL, Boise LH, Bahlis NJ. ETV4-Dependent Transcriptional Plasticity Maintains MYC Expression and Results in IMiD Resistance in Multiple Myeloma. Blood Cancer Discov 2024; 5:56-73. [PMID: 37934799 PMCID: PMC10772538 DOI: 10.1158/2643-3230.bcd-23-0061] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 10/01/2023] [Accepted: 11/03/2023] [Indexed: 11/09/2023] Open
Abstract
Immunomodulatory drugs (IMiD) are a backbone therapy for multiple myeloma (MM). Despite their efficacy, most patients develop resistance, and the mechanisms are not fully defined. Here, we show that IMiD responses are directed by IMiD-dependent degradation of IKZF1 and IKZF3 that bind to enhancers necessary to sustain the expression of MYC and other myeloma oncogenes. IMiD treatment universally depleted chromatin-bound IKZF1, but eviction of P300 and BRD4 coactivators only occurred in IMiD-sensitive cells. IKZF1-bound enhancers overlapped other transcription factor binding motifs, including ETV4. Chromatin immunoprecipitation sequencing showed that ETV4 bound to the same enhancers as IKZF1, and ETV4 CRISPR/Cas9-mediated ablation resulted in sensitization of IMiD-resistant MM. ETV4 expression is associated with IMiD resistance in cell lines, poor prognosis in patients, and is upregulated at relapse. These data indicate that ETV4 alleviates IKZF1 and IKZF3 dependency in MM by maintaining oncogenic enhancer activity and identify transcriptional plasticity as a previously unrecognized mechanism of IMiD resistance. SIGNIFICANCE We show that IKZF1-bound enhancers are critical for IMiD efficacy and that the factor ETV4 can bind the same enhancers and substitute for IKZF1 and mediate IMiD resistance by maintaining MYC and other oncogenes. These data implicate transcription factor redundancy as a previously unrecognized mode of IMiD resistance in MM. See related article by Welsh, Barwick, et al., p. 34. See related commentary by Yun and Cleveland, p. 5. This article is featured in Selected Articles from This Issue, p. 4.
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Affiliation(s)
- Paola Neri
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Canada
| | - Benjamin G. Barwick
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia
| | - David Jung
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Canada
| | - Jonathan C. Patton
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia
| | - Ranjan Maity
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Canada
| | - Ines Tagoug
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Canada
| | - Caleb K. Stein
- Division of Hematology and Oncology, Mayo Clinic, Scottsdale, Arizona
| | - Remi Tilmont
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Canada
| | - Noemie Leblay
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Canada
| | - Sungwoo Ahn
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Canada
| | - Holly Lee
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Canada
| | - Seth J. Welsh
- Division of Hematology and Oncology, Mayo Clinic, Scottsdale, Arizona
| | - Daniel L. Riggs
- Division of Hematology and Oncology, Mayo Clinic, Scottsdale, Arizona
| | - Nicholas Stong
- Translational Medicine, Bristol Myers Squibb, Summit, New Jersey
| | - Erin Flynt
- Predictive Sciences, Bristol Myers Squibb, Summit, New Jersey
| | - Anjan Thakurta
- Oxford Centre for Translational Myeloma Research, University of Oxford, Oxford, United Kingdom
| | | | - Sagar Lonial
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia
| | - P. Leif Bergsagel
- Division of Hematology and Oncology, Mayo Clinic, Scottsdale, Arizona
| | - Lawrence H. Boise
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia
| | - Nizar J. Bahlis
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Canada
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21
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Schröder M, Renatus M, Liang X, Meili F, Zoller T, Ferrand S, Gauter F, Li X, Sigoillot F, Gleim S, Stachyra TM, Thomas JR, Begue D, Khoshouei M, Lefeuvre P, Andraos-Rey R, Chung B, Ma R, Pinch B, Hofmann A, Schirle M, Schmiedeberg N, Imbach P, Gorses D, Calkins K, Bauer-Probst B, Maschlej M, Niederst M, Maher R, Henault M, Alford J, Ahrne E, Tordella L, Hollingworth G, Thomä NH, Vulpetti A, Radimerski T, Holzer P, Carbonneau S, Thoma CR. DCAF1-based PROTACs with activity against clinically validated targets overcoming intrinsic- and acquired-degrader resistance. Nat Commun 2024; 15:275. [PMID: 38177131 PMCID: PMC10766610 DOI: 10.1038/s41467-023-44237-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 12/05/2023] [Indexed: 01/06/2024] Open
Abstract
Targeted protein degradation (TPD) mediates protein level through small molecule induced redirection of E3 ligases to ubiquitinate neo-substrates and mark them for proteasomal degradation. TPD has recently emerged as a key modality in drug discovery. So far only a few ligases have been utilized for TPD. Interestingly, the workhorse ligase CRBN has been observed to be downregulated in settings of resistance to immunomodulatory inhibitory drugs (IMiDs). Here we show that the essential E3 ligase receptor DCAF1 can be harnessed for TPD utilizing a selective, non-covalent DCAF1 binder. We confirm that this binder can be functionalized into an efficient DCAF1-BRD9 PROTAC. Chemical and genetic rescue experiments validate specific degradation via the CRL4DCAF1 E3 ligase. Additionally, a dasatinib-based DCAF1 PROTAC successfully degrades cytosolic and membrane-bound tyrosine kinases. A potent and selective DCAF1-BTK-PROTAC (DBt-10) degrades BTK in cells with acquired resistance to CRBN-BTK-PROTACs while the DCAF1-BRD9 PROTAC (DBr-1) provides an alternative strategy to tackle intrinsic resistance to VHL-degrader, highlighting DCAF1-PROTACS as a promising strategy to overcome ligase mediated resistance in clinical settings.
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Affiliation(s)
- Martin Schröder
- Novartis Institutes for BioMedical Research, Basel, Switzerland.
| | - Martin Renatus
- Novartis Institutes for BioMedical Research, Basel, Switzerland
- Ridgeline Discovery, Basel, Switzerland
| | - Xiaoyou Liang
- Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Fabian Meili
- Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Thomas Zoller
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | | | - Francois Gauter
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Xiaoyan Li
- Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | | | - Scott Gleim
- Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | | | - Jason R Thomas
- Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Damien Begue
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | | | - Peggy Lefeuvre
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | | | - BoYee Chung
- Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Renate Ma
- Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Benika Pinch
- Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Andreas Hofmann
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Markus Schirle
- Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | | | - Patricia Imbach
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Delphine Gorses
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Keith Calkins
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | | | | | - Matt Niederst
- Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Rob Maher
- Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Martin Henault
- Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - John Alford
- Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Erik Ahrne
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Luca Tordella
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | | | - Nicolas H Thomä
- Friedrich Miescher Institute for Biomedical Research, Basel, Switzerland
- Swiss Institute for Experimental Cancer Research (ISREC), École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Anna Vulpetti
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Thomas Radimerski
- Novartis Institutes for BioMedical Research, Basel, Switzerland
- Ridgeline Discovery, Basel, Switzerland
| | - Philipp Holzer
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Seth Carbonneau
- Novartis Institutes for BioMedical Research, Cambridge, MA, USA
| | - Claudio R Thoma
- Novartis Institutes for BioMedical Research, Cambridge, MA, USA.
- Ridgeline Discovery, Basel, Switzerland.
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22
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Bouguenina H, Scarpino A, O'Hanlon JA, Warne J, Wang HZ, Wah Hak LC, Sadok A, McAndrew PC, Stubbs M, Pierrat OA, Hahner T, Cabry MP, Le Bihan YV, Mitsopoulos C, Sialana FJ, Roumeliotis TI, Burke R, van Montfort RLM, Choudhari J, Chopra R, Caldwell JJ, Collins I. A Degron Blocking Strategy Towards Improved CRL4 CRBN Recruiting PROTAC Selectivity. Chembiochem 2023; 24:e202300351. [PMID: 37418539 DOI: 10.1002/cbic.202300351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/16/2023] [Accepted: 07/03/2023] [Indexed: 07/09/2023]
Abstract
Small molecules inducing protein degradation are important pharmacological tools to interrogate complex biology and are rapidly translating into clinical agents. However, to fully realise the potential of these molecules, selectivity remains a limiting challenge. Herein, we addressed the issue of selectivity in the design of CRL4CRBN recruiting PROteolysis TArgeting Chimeras (PROTACs). Thalidomide derivatives used to generate CRL4CRBN recruiting PROTACs have well described intrinsic monovalent degradation profiles by inducing the recruitment of neo-substrates, such as GSPT1, Ikaros and Aiolos. We leveraged structural insights from known CRL4CRBN neo-substrates to attenuate and indeed remove this monovalent degradation function in well-known CRL4CRBN molecular glues degraders, namely CC-885 and Pomalidomide. We then applied these design principles on a previously published BRD9 PROTAC (dBRD9-A) and generated an analogue with improved selectivity profile. Finally, we implemented a computational modelling pipeline to show that our degron blocking design does not impact PROTAC-induced ternary complex formation. We believe that the tools and principles presented in this work will be valuable to support the development of targeted protein degradation.
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Affiliation(s)
- Habib Bouguenina
- Centre for Cancer Drug Discovery, Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
| | - Andrea Scarpino
- Centre for Cancer Drug Discovery, Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
| | - Jack A O'Hanlon
- Centre for Cancer Drug Discovery, Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
| | - Justin Warne
- Centre for Cancer Drug Discovery, Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
| | - Hannah Z Wang
- Centre for Cancer Drug Discovery, Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
| | - Laura Chan Wah Hak
- Centre for Cancer Drug Discovery, Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
| | - Amine Sadok
- Centre for Cancer Drug Discovery, Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
- Monte Rosa Therapeutics AG, Aeschenvorstadt 36, 4051, Basel, Switzerland
| | - P Craig McAndrew
- Centre for Cancer Drug Discovery, Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
| | - Mark Stubbs
- Centre for Cancer Drug Discovery, Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
| | - Olivier A Pierrat
- Centre for Cancer Drug Discovery, Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
| | - Tamas Hahner
- Centre for Cancer Drug Discovery, Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
| | - Marc P Cabry
- Centre for Cancer Drug Discovery, Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
| | - Yann-Vaï Le Bihan
- Centre for Cancer Drug Discovery, Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
| | - Costas Mitsopoulos
- Centre for Cancer Drug Discovery, Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
| | - Fernando J Sialana
- Centre for Cancer Drug Discovery, Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
- Functional Proteomics Group, The Institute of Cancer Research, Chester Beatty Laboratories, London, SW3 6JB, UK
| | - Theodoros I Roumeliotis
- Centre for Cancer Drug Discovery, Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
- Functional Proteomics Group, The Institute of Cancer Research, Chester Beatty Laboratories, London, SW3 6JB, UK
| | - Rosemary Burke
- Centre for Cancer Drug Discovery, Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
| | - Rob L M van Montfort
- Centre for Cancer Drug Discovery, Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
| | - Jyoti Choudhari
- Functional Proteomics Group, The Institute of Cancer Research, Chester Beatty Laboratories, London, SW3 6JB, UK
| | - Rajesh Chopra
- Centre for Cancer Drug Discovery, Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
- Apple Tree Partners, The Gridiron Building, Suite 6.05, 1 St Pancras Square, London, N1 C 4AG, UK
| | - John J Caldwell
- Centre for Cancer Drug Discovery, Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
| | - Ian Collins
- Centre for Cancer Drug Discovery, Institute of Cancer Research, 15 Cotswold Road, Sutton, London, SM2 5NG, UK
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23
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Borsi E, Mazzocchetti G, Dico AF, Vigliotta I, Martello M, Poletti A, Solli V, Armuzzi S, Taurisano B, Kanapari A, Pistis I, Zamagni E, Tacchetti P, Pantani L, Mancuso K, Rocchi S, Rizzello I, Cavo M, Terragna C. High levels of CRBN isoform lacking IMiDs binding domain predicts for a worse response to IMiDs-based upfront therapy in newly diagnosed myeloma patients. Clin Exp Med 2023; 23:5227-5239. [PMID: 37815734 PMCID: PMC10725394 DOI: 10.1007/s10238-023-01205-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 09/22/2023] [Indexed: 10/11/2023]
Abstract
In recent years, the immunoderivative (IMiD) agents have been extensively used for the treatment of multiple myeloma (MM). IMiDs and their newer derivatives CRBN E3 ligase modulator bind the E3 ligase substrate recognition adapter protein cereblon (CRBN), which has been recognized as one of the IMiDs' direct target proteins, and it is essential for the therapeutic effect of these agents.High expression of CRBN was associated with improved clinical response in patients with MM treated with IMiDs, further confirming that the expression of IMiDs' direct target protein CRBN is required for the anti-MM activity. CRBN's central role as a target of IMiDs suggests potential utility as a predictive biomarker of response or resistance to IMiDs therapy. Additionally, the presence of alternatively spliced variants of CRBN in MM cells, especially those lacking the drug-binding domain for IMiDs, raise questions concerning their potential biological function, making difficult the transcript measurement, which leads to inaccurate overestimation of full-length CRBN transcripts. In sight of this, in the present study, we evaluated the CRBN expression, both full-length and spliced isoforms, by using real-time assay data from 87 patients and RNA sequencing data from 50 patients (n = 137 newly diagnosed MM patients), aiming at defining CRBN's role as a predictive biomarker for response to IMiDs-based induction therapy. We found that the expression level of the spliced isoform tends to be higher in not-responding patients, confirming that the presence of a more CRBN spliced transcript predicts for lack of IMiDs response.
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Affiliation(s)
- Enrica Borsi
- IRCCS Azienda Ospedaliero-Universitaria di Bologna-Istituto di Ematologia "Seràgnoli", Bologna, Italy.
| | - Gaia Mazzocchetti
- IRCCS Azienda Ospedaliero-Universitaria di Bologna-Istituto di Ematologia "Seràgnoli", Bologna, Italy
- DIMEC-Dipartimento di Scienze Mediche e Chirurgiche, Università di Bologna, Bologna, Italy
| | | | - Ilaria Vigliotta
- IRCCS Azienda Ospedaliero-Universitaria di Bologna-Istituto di Ematologia "Seràgnoli", Bologna, Italy
| | - Marina Martello
- IRCCS Azienda Ospedaliero-Universitaria di Bologna-Istituto di Ematologia "Seràgnoli", Bologna, Italy
- DIMEC-Dipartimento di Scienze Mediche e Chirurgiche, Università di Bologna, Bologna, Italy
| | - Andrea Poletti
- IRCCS Azienda Ospedaliero-Universitaria di Bologna-Istituto di Ematologia "Seràgnoli", Bologna, Italy
- DIMEC-Dipartimento di Scienze Mediche e Chirurgiche, Università di Bologna, Bologna, Italy
| | - Vincenza Solli
- IRCCS Azienda Ospedaliero-Universitaria di Bologna-Istituto di Ematologia "Seràgnoli", Bologna, Italy
- DIMEC-Dipartimento di Scienze Mediche e Chirurgiche, Università di Bologna, Bologna, Italy
| | - Silvia Armuzzi
- IRCCS Azienda Ospedaliero-Universitaria di Bologna-Istituto di Ematologia "Seràgnoli", Bologna, Italy
- DIMEC-Dipartimento di Scienze Mediche e Chirurgiche, Università di Bologna, Bologna, Italy
| | - Barbara Taurisano
- IRCCS Azienda Ospedaliero-Universitaria di Bologna-Istituto di Ematologia "Seràgnoli", Bologna, Italy
- DIMEC-Dipartimento di Scienze Mediche e Chirurgiche, Università di Bologna, Bologna, Italy
| | - Ajsi Kanapari
- IRCCS Azienda Ospedaliero-Universitaria di Bologna-Istituto di Ematologia "Seràgnoli", Bologna, Italy
- DIMEC-Dipartimento di Scienze Mediche e Chirurgiche, Università di Bologna, Bologna, Italy
| | - Ignazia Pistis
- IRCCS Azienda Ospedaliero-Universitaria di Bologna-Istituto di Ematologia "Seràgnoli", Bologna, Italy
| | - Elena Zamagni
- IRCCS Azienda Ospedaliero-Universitaria di Bologna-Istituto di Ematologia "Seràgnoli", Bologna, Italy
- DIMEC-Dipartimento di Scienze Mediche e Chirurgiche, Università di Bologna, Bologna, Italy
| | - Paola Tacchetti
- IRCCS Azienda Ospedaliero-Universitaria di Bologna-Istituto di Ematologia "Seràgnoli", Bologna, Italy
| | - Lucia Pantani
- IRCCS Azienda Ospedaliero-Universitaria di Bologna-Istituto di Ematologia "Seràgnoli", Bologna, Italy
| | - Katia Mancuso
- IRCCS Azienda Ospedaliero-Universitaria di Bologna-Istituto di Ematologia "Seràgnoli", Bologna, Italy
| | - Serena Rocchi
- IRCCS Azienda Ospedaliero-Universitaria di Bologna-Istituto di Ematologia "Seràgnoli", Bologna, Italy
| | - Ilaria Rizzello
- IRCCS Azienda Ospedaliero-Universitaria di Bologna-Istituto di Ematologia "Seràgnoli", Bologna, Italy
| | - Michele Cavo
- IRCCS Azienda Ospedaliero-Universitaria di Bologna-Istituto di Ematologia "Seràgnoli", Bologna, Italy
- DIMEC-Dipartimento di Scienze Mediche e Chirurgiche, Università di Bologna, Bologna, Italy
| | - Carolina Terragna
- IRCCS Azienda Ospedaliero-Universitaria di Bologna-Istituto di Ematologia "Seràgnoli", Bologna, Italy.
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Maura F, Boyle EM, Coffey D, Maclachlan K, Gagler D, Diamond B, Ghamlouch H, Blaney P, Ziccheddu B, Cirrincione A, Chojnacka M, Wang Y, Siegel A, Hoffman JE, Kazandjian D, Hassoun H, Guzman E, Mailankody S, Shah UA, Tan C, Hultcrantz M, Scordo M, Shah GL, Landau H, Chung DJ, Giralt S, Zhang Y, Arbini A, Gao Q, Roshal M, Dogan A, Lesokhin AM, Davies FE, Usmani SZ, Korde N, Morgan GJ, Landgren O. Genomic and immune signatures predict clinical outcome in newly diagnosed multiple myeloma treated with immunotherapy regimens. NATURE CANCER 2023; 4:1660-1674. [PMID: 37945755 DOI: 10.1038/s43018-023-00657-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 09/20/2023] [Indexed: 11/12/2023]
Abstract
Despite improving outcomes, 40% of patients with newly diagnosed multiple myeloma treated with regimens containing daratumumab, a CD38-targeted monoclonal antibody, progress prematurely. By integrating tumor whole-genome and microenvironment single-cell RNA sequencing from upfront phase 2 trials using carfilzomib, lenalidomide and dexamethasone with daratumumab ( NCT03290950 ), we show how distinct genomic drivers including high APOBEC mutational activity, IKZF3 and RPL5 deletions and 8q gain affect clinical outcomes. Furthermore, evaluation of paired bone marrow profiles, taken before and after eight cycles of carfilzomib, lenalidomide and dexamethasone with daratumumab, shows that numbers of natural killer cells before treatment, high T cell receptor diversity before treatment, the disappearance of sustained immune activation (that is, B cells and T cells) and monocyte expansion over time are all predictive of sustained minimal residual disease negativity. Overall, this study provides strong evidence of a complex interplay between tumor cells and the immune microenvironment that is predictive of clinical outcome and depth of treatment response in patients with newly diagnosed multiple myeloma treated with highly effective combinations containing anti-CD38 antibodies.
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Affiliation(s)
- Francesco Maura
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA.
| | - Eileen M Boyle
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - David Coffey
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Kylee Maclachlan
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Dylan Gagler
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - Benjamin Diamond
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Hussein Ghamlouch
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - Patrick Blaney
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - Bachisio Ziccheddu
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Anthony Cirrincione
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Monika Chojnacka
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Yubao Wang
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - Ariel Siegel
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - James E Hoffman
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Dickran Kazandjian
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
| | - Hani Hassoun
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Emily Guzman
- Genome Technology Center, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - Sham Mailankody
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Urvi A Shah
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Carlyn Tan
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Malin Hultcrantz
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Michael Scordo
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
- Hematopathology Service, Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Gunjan L Shah
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
- Adult Bone Marrow Transplant Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Heather Landau
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
- Adult Bone Marrow Transplant Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - David J Chung
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
- Adult Bone Marrow Transplant Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Sergio Giralt
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
- Adult Bone Marrow Transplant Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Yanming Zhang
- Cytogenetics Laboratory, Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Arnaldo Arbini
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - Qi Gao
- Hematopathology Service, Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Mikhail Roshal
- Hematopathology Service, Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Ahmet Dogan
- Hematopathology Service, Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Alexander M Lesokhin
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Faith E Davies
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA
| | - Saad Z Usmani
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Neha Korde
- Myeloma Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Gareth J Morgan
- Myeloma Research Program, NYU Langone, Perlmutter Cancer Center, New York, NY, USA.
| | - Ola Landgren
- Myeloma Division, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA.
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Suzuki K, Yano S. IMiD-Free Interval and IMiDs Sequence: Which Strategy Is Better Suited for Lenalidomide-Refractory Myeloma? Life (Basel) 2023; 13:2229. [PMID: 38004369 PMCID: PMC10672235 DOI: 10.3390/life13112229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/11/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023] Open
Abstract
This review discusses immunomodulatory drug (IMiDs) sequencing and IMiD-free interval strategies for lenalidomide-refractory myeloma. IMiDs and proteasome inhibitors (PIs) improve clinical outcomes in patients with myeloma; however, refractoriness to lenalidomide, a category of IMiD, predicts poor outcomes. Next-generation IMiDs, such as pomalidomide, are effective even for lenalidomide-refractory myeloma. Therefore, an IMiD-sequencing strategy from lenalidomide to pomalidomide would be desirable. PIs are an antimyeloma therapeutic agent with another mode of action that might restore cereblon, a target of IMiDs; therefore, an IMiD-free interval via class switching from lenalidomide to PIs may be a promising alternative for lenalidomide-refractory myeloma. Additionally, the anti-CD38 monoclonal antibody is a key drug for salvage therapy in anti-CD38 monoclonal antibody-naïve patients. In clinical practice, safety profiles and social convenience can play important roles in the choice of combination therapy. In the future, the selection of optimal treatments should be based on the status of the immunological environment and genetic alterations. This review aims to discuss IMiDs sequencing and IMiD-free interval strategies for lenalidomide- refractory myeloma.
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Affiliation(s)
- Kazuhito Suzuki
- Division of Clinical Oncology and Hematology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan;
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Liu Y, Yang J, Wang T, Luo M, Chen Y, Chen C, Ronai Z, Zhou Y, Ruppin E, Han L. Expanding PROTACtable genome universe of E3 ligases. Nat Commun 2023; 14:6509. [PMID: 37845222 PMCID: PMC10579327 DOI: 10.1038/s41467-023-42233-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 09/28/2023] [Indexed: 10/18/2023] Open
Abstract
Proteolysis-targeting chimera (PROTAC) and other targeted protein degradation (TPD) molecules that induce degradation by the ubiquitin-proteasome system (UPS) offer new opportunities to engage targets that remain challenging to be inhibited by conventional small molecules. One fundamental element in the degradation process is the E3 ligase. However, less than 2% amongst hundreds of E3 ligases in the human genome have been engaged in current studies in the TPD field, calling for the recruiting of additional ones to further enhance the therapeutic potential of TPD. To accelerate the development of PROTACs utilizing under-explored E3 ligases, we systematically characterize E3 ligases from seven different aspects, including chemical ligandability, expression patterns, protein-protein interactions (PPI), structure availability, functional essentiality, cellular location, and PPI interface by analyzing 30 large-scale data sets. Our analysis uncovers several E3 ligases as promising extant PROTACs. In total, combining confidence score, ligandability, expression pattern, and PPI, we identified 76 E3 ligases as PROTAC-interacting candidates. We develop a user-friendly and flexible web portal ( https://hanlaboratory.com/E3Atlas/ ) aimed at assisting researchers to rapidly identify E3 ligases with promising TPD activities against specifically desired targets, facilitating the development of these therapies in cancer and beyond.
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Affiliation(s)
- Yuan Liu
- Department of Biostatistics and Health Data Science, School of Medicine, Indiana University, Indianapolis, IN, USA
- Brown Center for Immunotherapy, School of Medicine, Indiana University, Indianapolis, IN, USA
- Center for Epigenetics and Disease Prevention, Institute of Biosciences and Technology, Texas A&M University, Houston, TX, USA
| | - Jingwen Yang
- Department of Biostatistics and Health Data Science, School of Medicine, Indiana University, Indianapolis, IN, USA
- Brown Center for Immunotherapy, School of Medicine, Indiana University, Indianapolis, IN, USA
- Center for Epigenetics and Disease Prevention, Institute of Biosciences and Technology, Texas A&M University, Houston, TX, USA
| | - Tianlu Wang
- Center for Translational Cancer Research, Institute of Biosciences and Technology, Texas A&M University, Houston, TX, USA
| | - Mei Luo
- Department of Biostatistics and Health Data Science, School of Medicine, Indiana University, Indianapolis, IN, USA
- Brown Center for Immunotherapy, School of Medicine, Indiana University, Indianapolis, IN, USA
| | - Yamei Chen
- Department of Biostatistics and Health Data Science, School of Medicine, Indiana University, Indianapolis, IN, USA
- Brown Center for Immunotherapy, School of Medicine, Indiana University, Indianapolis, IN, USA
- Center for Epigenetics and Disease Prevention, Institute of Biosciences and Technology, Texas A&M University, Houston, TX, USA
| | - Chengxuan Chen
- Department of Biostatistics and Health Data Science, School of Medicine, Indiana University, Indianapolis, IN, USA
- Brown Center for Immunotherapy, School of Medicine, Indiana University, Indianapolis, IN, USA
- Center for Epigenetics and Disease Prevention, Institute of Biosciences and Technology, Texas A&M University, Houston, TX, USA
| | - Ze'ev Ronai
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, 92037, USA
| | - Yubin Zhou
- Center for Translational Cancer Research, Institute of Biosciences and Technology, Texas A&M University, Houston, TX, USA
- Department of Translational Medical Sciences, College of Medicine, Texas A&M University, Houston, TX, USA
| | - Eytan Ruppin
- Cancer Data Science Laboratory, Center for Cancer Research, National Cancer Institute (NCI), National Institutes of Health (NIH), Bethesda, 20892, MD, USA.
| | - Leng Han
- Department of Biostatistics and Health Data Science, School of Medicine, Indiana University, Indianapolis, IN, USA.
- Brown Center for Immunotherapy, School of Medicine, Indiana University, Indianapolis, IN, USA.
- Center for Epigenetics and Disease Prevention, Institute of Biosciences and Technology, Texas A&M University, Houston, TX, USA.
- Department of Translational Medical Sciences, College of Medicine, Texas A&M University, Houston, TX, USA.
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27
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Miao Q, Kadam VD, Mukherjee A, Tan Z, Teng M. Unlocking DCAFs To Catalyze Degrader Development: An Arena for Innovative Approaches. J Med Chem 2023; 66:13369-13383. [PMID: 37738232 DOI: 10.1021/acs.jmedchem.3c01209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
Abstract
Chemically induced proximity-based targeted protein degradation (TPD) has become a prominent paradigm in drug discovery. With the clinical benefit demonstrated by certain small-molecule protein degraders that target the cullin-RING E3 ubiquitin ligases (CRLs), the field has proactively strategized to tackle anticipated drug resistance by harnessing additional E3 ubiquitin ligases to enrich the arsenal of this therapeutic approach. Here, we endeavor to explore the collaborative efforts involved in unlocking a broad range of CRL4DCAF for degrader drug development. Throughout the discussion, we also highlight how both conventional and innovative approaches in drug discovery can be taken to realize this objective. Moving ahead, we expect a greater allocation of resources in TPD to pursue these high-hanging fruits.
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Affiliation(s)
- Qi Miao
- Center for Drug Discovery, Department of Pathology & Immunology, and Verna and Marrs McLean Department of Biochemistry and Molecular Pharmacology, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Vilas D Kadam
- Center for Drug Discovery, Department of Pathology & Immunology, and Verna and Marrs McLean Department of Biochemistry and Molecular Pharmacology, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Ayan Mukherjee
- Center for Drug Discovery, Department of Pathology & Immunology, and Verna and Marrs McLean Department of Biochemistry and Molecular Pharmacology, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Zhi Tan
- Center for Drug Discovery, Department of Pathology & Immunology, and Verna and Marrs McLean Department of Biochemistry and Molecular Pharmacology, Baylor College of Medicine, Houston, Texas 77030, United States
| | - Mingxing Teng
- Center for Drug Discovery, Department of Pathology & Immunology, and Verna and Marrs McLean Department of Biochemistry and Molecular Pharmacology, Baylor College of Medicine, Houston, Texas 77030, United States
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Richardson PG, Trudel S, Popat R, Mateos MV, Vangsted AJ, Ramasamy K, Martinez-Lopez J, Quach H, Orlowski RZ, Arnao M, Lonial S, Karanes C, Pawlyn C, Kim K, Oriol A, Berdeja JG, Rodríguez Otero P, Casas-Avilés I, Spirli A, Poon J, Li S, Gong J, Wong L, Lamba M, Pierce DW, Amatangelo M, Peluso T, Maciag P, Katz J, Pourdehnad M, Bahlis NJ. Mezigdomide plus Dexamethasone in Relapsed and Refractory Multiple Myeloma. N Engl J Med 2023; 389:1009-1022. [PMID: 37646702 DOI: 10.1056/nejmoa2303194] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
BACKGROUND Despite recent progress, multiple myeloma remains incurable. Mezigdomide is a novel cereblon E3 ubiquitin ligase modulator with potent antiproliferative and tumoricidal activity in preclinical models of multiple myeloma, including those resistant to lenalidomide and pomalidomide. METHODS In this phase 1-2 study, we administered oral mezigdomide in combination with dexamethasone to patients with relapsed and refractory myeloma. The primary objectives of phase 1 (dose-escalation cohort) were to assess safety and pharmacokinetics and to identify the dose and schedule for phase 2. In phase 2 (dose-expansion cohort), objectives included the assessment of the overall response (partial response or better), safety, and efficacy of mezigdomide plus dexamethasone at the dose and schedule determined in phase 1. RESULTS In phase 1, a total of 77 patients were enrolled in the study. The most common dose-limiting toxic effects were neutropenia and febrile neutropenia. On the basis of the phase 1 findings, investigators determined the recommended phase 2 dose of mezigdomide to be 1.0 mg, given once daily in combination with dexamethasone for 21 days, followed by 7 days off, in each 28-day cycle. In phase 2, a total of 101 patients received the dose identified in phase 1 in the same schedule. All patients in the dose-expansion cohort had triple-class-refractory multiple myeloma, 30 patients (30%) had received previous anti-B-cell maturation antigen (anti-BCMA) therapy, and 40 (40%) had plasmacytomas. The most common adverse events, almost all of which proved to be reversible, included neutropenia (in 77% of the patients) and infection (in 65%; grade 3, 29%; grade 4, 6%). No unexpected toxic effects were encountered. An overall response occurred in 41% of the patients (95% confidence interval [CI], 31 to 51), the median duration of response was 7.6 months (95% CI, 5.4 to 9.5; data not mature), and the median progression-free survival was 4.4 months (95% CI, 3.0 to 5.5), with a median follow-up of 7.5 months (range, 0.5 to 21.9). CONCLUSIONS The all-oral combination of mezigdomide plus dexamethasone showed promising efficacy in patients with heavily pretreated multiple myeloma, with treatment-related adverse events consisting mainly of myelotoxic effects. (Funded by Celgene, a Bristol-Myers Squibb Company; CC-92480-MM-001 ClinicalTrials.gov number, NCT03374085; EudraCT number, 2017-001236-19.).
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Affiliation(s)
- Paul G Richardson
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Suzanne Trudel
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Rakesh Popat
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - María-Victoria Mateos
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Annette J Vangsted
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Karthik Ramasamy
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Joaquín Martinez-Lopez
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Hang Quach
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Robert Z Orlowski
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Mario Arnao
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Sagar Lonial
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Chatchada Karanes
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Charlotte Pawlyn
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Kihyun Kim
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Albert Oriol
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Jesus G Berdeja
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Paula Rodríguez Otero
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Ignacio Casas-Avilés
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Alessia Spirli
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Jennifer Poon
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Shaoyi Li
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Jing Gong
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Lilly Wong
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Manisha Lamba
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Daniel W Pierce
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Michael Amatangelo
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Teresa Peluso
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Paulo Maciag
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Jessica Katz
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Michael Pourdehnad
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
| | - Nizar J Bahlis
- From Dana-Farber Cancer Institute, Boston (P.G.R.); the Division of Medical Oncology and Hematology, Princess Margaret Cancer Centre, University of Toronto, Toronto (S.T.), and Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, AB (N.J.B.) - both in Canada; NIHR UCLH Clinical Research Facility, University College London Hospitals NHS Foundation Trust (R.P.), the Institute of Cancer Research (C.P.), and the Royal Marsden NHS Foundation Trust (C.P.), London, and the Department of Clinical Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford (K.R.) - all in the United Kingdom; University Hospital of Salamanca/IBSAL, Salamanca (M.-V.M.), the Department of Hematology, Hospital 12 de Octubre, Department of Medicine, School of Medicine, Complutense University, H12O-CNIO Clinical Research Unit, CIBERONC, Madrid (J.M.-L.), Hospital Universitari La Fe, Valencia (M.A.), Institut Català d'Oncologia and Institut Josep Carreras, Hospital Germans Trias i Pujol, Badalona (A.O.), Clínica Universidad de Navarra, CIMA, IDISNA, CIBERONC, Pamplona (P.R.O.), and Hospital San Pedro de Alcántara, Cáceres (I.C.-A.) - all in Spain; the Department of Hematology, Rigshospitalet, Copenhagen (A.J.V.); St. Vincent's Hospital Melbourne, University of Melbourne, Melbourne, VIC, Australia (H.Q.); the Department of Lymphoma and Myeloma, University of Texas M.D. Anderson Cancer Center, Houston (R.Z.O.); Winship Cancer Institute, Emory University, Atlanta (S. Lonial); Judy and Bernard Briskin Center for Multiple Myeloma Research, City of Hope, Duarte, CA (C.K.); Sungkyunkwan University, Samsung Medical Center, Seoul, South Korea (K.K.); Sarah Cannon Research Institute, Nashville (J.G.B.); Celgene International, a Bristol-Myers Squibb Company, Boudry, Switzerland (A.S., T.P.); and Bristol Myers Squibb, Princeton, NJ (J.P., S. Li, J.G., L.W., M.L., D.W.P., M.A., P.M., J.K., M.P.)
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Kong NR, Jones LH. Clinical Translation of Targeted Protein Degraders. Clin Pharmacol Ther 2023; 114:558-568. [PMID: 37399310 DOI: 10.1002/cpt.2985] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 06/19/2023] [Indexed: 07/05/2023]
Abstract
Targeted protein degradation (TPD) has emerged as a potentially transformational therapeutic modality with considerable promise. Molecular glue degraders remodel the surface of E3 ligases inducing interactions with neosubstrates resulting in their polyubiquitination and proteasomal degradation. Molecular glues are clinically precedented and have demonstrated the ability to degrade proteins-of-interest (POIs) previously deemed undruggable due to the absence of a traditional small molecule binding pocket. Heterobifunctional proteolysis targeting chimeras (PROTACs) possess ligands for an E3 complex and the POIs, which are chemically linked together, and similarly hijack the ubiquitin machinery to deplete the target. There has been a recent surge in the number of degraders entering clinical trials, particularly directed toward cancer. Nearly all utilize CRL4CRBN as the E3 ligase, and a relatively limited diversity of POIs are currently targeted. In this review, we provide an overview of the degraders in clinical trials and provide a perspective on the lessons learned from their development and emerging human data that will be broadly useful to those working in the TPD field.
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Affiliation(s)
- Nikki R Kong
- Center for Protein Degradation, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts, USA
| | - Lyn H Jones
- Center for Protein Degradation, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts, USA
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Teng M, Gray NS. The rise of degrader drugs. Cell Chem Biol 2023; 30:864-878. [PMID: 37494935 DOI: 10.1016/j.chembiol.2023.06.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/30/2023] [Accepted: 06/21/2023] [Indexed: 07/28/2023]
Abstract
The cancer genomics revolution has served up a plethora of promising and challenging targets for the drug discovery community. The field of targeted protein degradation (TPD) uses small molecules to reprogram the protein homeostasis system to destroy desired target proteins. In the last decade, remarkable progress has enabled the rational development of degraders for a large number of target proteins, with over 20 molecules targeting more than 12 proteins entering clinical development. While TPD has been fully credentialed by the prior development of immunomodulatory drug (IMiD) class for the treatment of multiple myeloma, the field is poised for a "Gleevec moment" in which robust clinical efficacy of a rationally developed novel degrader against a preselected target is firmly established. Here, we endeavor to provide a high-level evaluation of exciting developments in the field and comment on steps that may realize the full potential of this new therapeutic modality.
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Affiliation(s)
- Mingxing Teng
- Center for Drug Discovery, Department of Pathology & Immunology, and Department of Pharmacology and Chemical Biology, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Nathanael S Gray
- Department of Chemical and Systems Biology, ChEM-H, Stanford Cancer Institute, School of Medicine, Stanford University, Stanford, CA 94305, USA.
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Osada N, Kikuchi J, Iha H, Yasui H, Ikeda S, Takahashi N, Furukawa Y. c-FOS is an integral component of the IKZF1 transactivator complex and mediates lenalidomide resistance in multiple myeloma. Clin Transl Med 2023; 13:e1364. [PMID: 37581569 PMCID: PMC10426395 DOI: 10.1002/ctm2.1364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 07/28/2023] [Accepted: 08/06/2023] [Indexed: 08/16/2023] Open
Abstract
BACKGROUND The immunomodulatory drug lenalidomide, which is now widely used for the treatment of multiple myeloma (MM), exerts pharmacological action through the ubiquitin-dependent degradation of IKZF1 and subsequent down-regulation of interferon regulatory factor 4 (IRF4), a critical factor for the survival of MM cells. IKZF1 acts principally as a tumour suppressor via transcriptional repression of oncogenes in normal lymphoid lineages. In contrast, IKZF1 activates IRF4 and other oncogenes in MM cells, suggesting the involvement of unknown co-factors in switching the IKZF1 complex from a transcriptional repressor to an activator. The transactivating components of the IKZF1 complex might promote lenalidomide resistance by residing on regulatory regions of the IRF4 gene to maintain its transcription after IKZF1 degradation. METHODS To identify unknown components of the IKZF1 complex, we analyzed the genome-wide binding of IKZF1 in MM cells using chromatin immunoprecipitation-sequencing (ChIP-seq) and screened for the co-occupancy of IKZF1 with other DNA-binding factors on the myeloma genome using the ChIP-Atlas platform. RESULTS We found that c-FOS, a member of the activator protein-1 (AP-1) family, is an integral component of the IKZF1 complex and is primarily responsible for the activator function of the complex in MM cells. The genome-wide screening revealed the co-occupancy of c-FOS with IKZF1 on the regulatory regions of IKZF1-target genes, including IRF4 and SLAMF7, in MM cells but not normal bone marrow progenitors, pre-B cells or mature T-lymphocytes. c-FOS and IKZF1 bound to the same consensus sequence as the IKZF1 complex through direct protein-protein interactions. The complex also includes c-JUN and IKZF3 but not IRF4. Treatment of MM cells with short-hairpin RNA against FOS or a selective AP-1 inhibitor significantly enhanced the anti-MM activity of lenalidomide in vitro and in two murine MM models. Furthermore, an AP-1 inhibitor mitigated the lenalidomide resistance of MM cells. CONCLUSIONS C-FOS determines lenalidomide sensitivity and mediates drug resistance in MM cells as a co-factor of IKZF1 and thus, could be a novel therapeutic target for further improvement of the prognosis of MM patients.
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Affiliation(s)
- Naoki Osada
- Division of Stem Cell RegulationCenter for Molecular MedicineJichi Medical UniversityTochigiJapan
| | - Jiro Kikuchi
- Division of Stem Cell RegulationCenter for Molecular MedicineJichi Medical UniversityTochigiJapan
| | - Hidekatsu Iha
- Division of PathophysiologyThe Research Center for GLOBAL and LOCAL Infectious Diseases (RCGLID)Oita UniversityOitaJapan
| | - Hiroshi Yasui
- Division of Hematology and Oncology, Department of Internal MedicineSt. Marianna University School of MedicineKanagawaJapan
- Project Division of Innovative Diagnostics Technology Platform, The Institute of Medical ScienceThe University of TokyoTokyoJapan
| | - Sho Ikeda
- Department of HematologyNephrology and RheumatologyAkita University Graduate School of MedicineAkitaJapan
| | - Naoto Takahashi
- Department of HematologyNephrology and RheumatologyAkita University Graduate School of MedicineAkitaJapan
| | - Yusuke Furukawa
- Division of Stem Cell RegulationCenter for Molecular MedicineJichi Medical UniversityTochigiJapan
- Center for Medical EducationTeikyo University of ScienceTokyoJapan
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McAvera R, Quinn J, Murphy P, Glavey S. Genetic Abnormalities in Extramedullary Multiple Myeloma. Int J Mol Sci 2023; 24:11259. [PMID: 37511018 PMCID: PMC10379577 DOI: 10.3390/ijms241411259] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 06/29/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
Extramedullary multiple myeloma (or extramedullary disease, EMD) is an aggressive form of multiple myeloma (MM) that occurs when malignant plasma cells become independent of the bone marrow microenvironment. This may occur alongside MM diagnosis or in later stages of relapse and confers an extremely poor prognosis. In the era of novel agents and anti-myeloma therapies, the incidence of EMD is increasing, making this a more prevalent and challenging cohort of patients. Therefore, understanding the underlying mechanisms of bone marrow escape and EMD driver events is increasingly urgent. The role of genomics in MM has been studied extensively; however, much less is known about the genetic background of EMD. Recently there has been an increased focus on driver events for the establishment of distant EMD sites. Generally, high-risk cytogenetic abnormalities and gene signatures are associated with EMD, alongside mutations in RAS signalling pathways. More recently, changes in epigenetic regulation have also been documented, specifically the hypermethylation of DNA promoter regions. Therefore, the focus of this review is to summarize and discuss what is currently known about the genetic background of EMD in MM.
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Affiliation(s)
- Roisin McAvera
- Department of Pathology, Royal College of Surgeons in Ireland, D09 YD60 Dublin, Ireland
| | - John Quinn
- Department of Haematology, Beaumont Hospital, D09 V2N0 Dublin, Ireland
- School of Medicine, Royal College of Surgeons in Ireland, D02 YN77 Dublin, Ireland
| | - Philip Murphy
- Department of Haematology, Beaumont Hospital, D09 V2N0 Dublin, Ireland
| | - Siobhan Glavey
- Department of Pathology, Royal College of Surgeons in Ireland, D09 YD60 Dublin, Ireland
- Department of Haematology, Beaumont Hospital, D09 V2N0 Dublin, Ireland
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Cencini E, Sicuranza A, Ciofini S, Fabbri A, Bocchia M, Gozzetti A. Tumor-Associated Macrophages in Multiple Myeloma: Key Role in Disease Biology and Potential Therapeutic Implications. Curr Oncol 2023; 30:6111-6133. [PMID: 37504315 PMCID: PMC10378698 DOI: 10.3390/curroncol30070455] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/14/2023] [Accepted: 06/23/2023] [Indexed: 07/29/2023] Open
Abstract
Multiple myeloma (MM) is characterized by multiple relapse and, despite the introduction of novel therapies, the disease becomes ultimately drug-resistant. The tumor microenvironment (TME) within the bone marrow niche includes dendritic cells, T-cytotoxic, T-helper, reactive B-lymphoid cells and macrophages, with a complex cross-talk between these cells and the MM tumor cells. Tumor-associated macrophages (TAM) have an important role in the MM pathogenesis, since they could promote plasma cells proliferation and angiogenesis, further supporting MM immune evasion and progression. TAM are polarized towards M1 (classically activated, antitumor activity) and M2 (alternatively activated, pro-tumor activity) subtypes. Many studies demonstrated a correlation between TAM, disease progression, drug-resistance and reduced survival in lymphoproliferative neoplasms, including MM. MM plasma cells in vitro could favor an M2 TAM polarization. Moreover, a possible correlation between the pro-tumor effect of M2 TAM and a reduced sensitivity to proteasome inhibitors and immunomodulatory drugs was hypothesized. Several clinical studies confirmed CD68/CD163 double-positive M2 TAM were associated with increased microvessel density, chemoresistance and reduced survival, independently of the MM stage. This review provided an overview of the biology and clinical relevance of TAM in MM, as well as a comprehensive evaluation of a potential TAM-targeted immunotherapy.
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Affiliation(s)
- Emanuele Cencini
- Unit of Hematology, Azienda Ospedaliera Universitaria Senese, University of Siena, 53100 Siena, Italy
| | - Anna Sicuranza
- Unit of Hematology, Azienda Ospedaliera Universitaria Senese, University of Siena, 53100 Siena, Italy
| | - Sara Ciofini
- Unit of Hematology, Azienda Ospedaliera Universitaria Senese, University of Siena, 53100 Siena, Italy
| | - Alberto Fabbri
- Unit of Hematology, Azienda Ospedaliera Universitaria Senese, University of Siena, 53100 Siena, Italy
| | - Monica Bocchia
- Unit of Hematology, Azienda Ospedaliera Universitaria Senese, University of Siena, 53100 Siena, Italy
| | - Alessandro Gozzetti
- Unit of Hematology, Azienda Ospedaliera Universitaria Senese, University of Siena, 53100 Siena, Italy
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Zhang SH, Zeng N, Sun JX, Liu CQ, Xu JZ, Xu MY, An Y, Zhong XY, Ma SY, He HD, Xia QD, Hu J, Wang SG. Pan-cancer analysis reveals the prognostic and immunologic roles of cereblon and its significance for PROTAC design. Heliyon 2023; 9:e16644. [PMID: 37303568 PMCID: PMC10248115 DOI: 10.1016/j.heliyon.2023.e16644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 05/14/2023] [Accepted: 05/23/2023] [Indexed: 06/13/2023] Open
Abstract
Background Cereblon (CRBN) has emerged as a vital E3 ubiquitin ligase for Proteolysis-targeting chimera (PROTAC) design. However, few studies focus on the physiological mechanism of CRBN, and more studies are needed to explore the influence of CRBN on tumorigenesis. This pan-cancer analysis aims to explore the prognostic and immunologic roles of CRBN, and provide new insight for CRBN into cancer treatment and PROTAC design. Methods The TCGA database, TIMER 2.0 database, and TISIDB database were used to analyze the role of CRBN in pan-cancer. Multiple bioinformatic methods (ssGSEA, Kaplan-Meier, univariate cox regression, ESTIMATE, CIBERSORT) were applied to investigate the CRBN expression status, gene activity, prognostic values, and its correlation with immune scores, immune infiltration, immune-related functions, HALLMARKs functions, and response to immunotherapy in pan-cancer. Results In most cancer types, the expression and activity of CRBN in tumor groups were lower compared with normal groups. Upregulated CRBN expression may indicate a better prognosis for cancer patients. The Immune score, stromal score, and tumor purity varied greatly among different cancer types. GSEA analysis showed that high CRBN expression was correlated with the downregulation of tumor-promoting signaling pathways. The level of CRBN was associated with Tumor mutation burden (TMB), Microsatellite instability (MSI), objective response rate (ORR), and immune cell infiltration in a few cancer types. Conclusion Pan-cancer analysis reveals the potential role of CRBN as a prognostic biomarker and versatile immunologic roles in different cancer types. Upregulated expression of CRBN may be beneficial to CRBN-related immunotherapy and PROTAC design.
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Zhu Z, Johnson RL, Zhang Z, Herring LE, Jiang G, Damania B, James LI, Liu P. Development of VHL-recruiting STING PROTACs that suppress innate immunity. Cell Mol Life Sci 2023; 80:149. [PMID: 37183204 PMCID: PMC11072333 DOI: 10.1007/s00018-023-04796-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 04/22/2023] [Accepted: 05/02/2023] [Indexed: 05/16/2023]
Abstract
STING acts as a cytosolic nucleotide sensor to trigger host defense upon viral or bacterial infection. While STING hyperactivation can exert anti-tumor effects by increasing T cell filtrates, in other contexts hyperactivation of STING can contribute to autoimmune and neuroinflammatory diseases. Several STING targeting agonists and a smaller subset of antagonists have been developed, yet STING targeted degraders, or PROTACs, remain largely underexplored. Here, we report a series of STING-agonist derived PROTACs that promote STING degradation in renal cell carcinoma (RCC) cells. We show that our STING PROTACs activate STING and target activated/phospho-STING for degradation. Locking STING on the endoplasmic reticulum via site-directed mutagenesis disables STING translocation to the proteasome and resultingly blocks STING degradation. We also demonstrate that PROTAC treatment blocks downstream innate immune signaling events and attenuates the anti-viral response. Interestingly, we find that VHL acts as a bona fide E3 ligase for STING in RCC; thus, VHL-recruiting STING PROTACs further promote VHL-dependent STING degradation. Our study reveals the design and biological assessment of VHL-recruiting agonist-derived STING PROTACs, as well as demonstrates an example of hijacking a physiological E3 ligase to enhance target protein degradation via distinct mechanisms.
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Affiliation(s)
- Zhichuan Zhu
- Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
- Department of Biochemistry and Biophysics, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Rebecca L Johnson
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Zhigang Zhang
- Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
- Department of Microbiology and Immunology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Laura E Herring
- UNC Proteomics Core Facility, Department of Pharmacology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Guochun Jiang
- Department of Biochemistry and Biophysics, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
- UNC HIV Cure Center, Institute of Global Health and Infectious Diseases, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Blossom Damania
- Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
- Department of Microbiology and Immunology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
- University of North Carolina Center for AIDS Research, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Lindsey I James
- Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
- Center for Integrative Chemical Biology and Drug Discovery, Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
| | - Pengda Liu
- Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
- Department of Biochemistry and Biophysics, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
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Li Q, Zhou L, Qin S, Huang Z, Li B, Liu R, Yang M, Nice EC, Zhu H, Huang C. Proteolysis-targeting chimeras in biotherapeutics: Current trends and future applications. Eur J Med Chem 2023; 257:115447. [PMID: 37229829 DOI: 10.1016/j.ejmech.2023.115447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 05/02/2023] [Accepted: 05/02/2023] [Indexed: 05/27/2023]
Abstract
The success of inhibitor-based therapeutics is largely constrained by the acquisition of therapeutic resistance, which is partially driven by the undruggable proteome. The emergence of proteolysis targeting chimera (PROTAC) technology, designed for degrading proteins involved in specific biological processes, might provide a novel framework for solving the above constraint. A heterobifunctional PROTAC molecule could structurally connect an E3 ubiquitin ligase ligand with a protein of interest (POI)-binding ligand by chemical linkers. Such technology would result in the degradation of the targeted protein via the ubiquitin-proteasome system (UPS), opening up a novel way of selectively inhibiting undruggable proteins. Herein, we will highlight the advantages of PROTAC technology and summarize the current understanding of the potential mechanisms involved in biotherapeutics, with a particular focus on its application and development where therapeutic benefits over classical small-molecule inhibitors have been achieved. Finally, we discuss how this technology can contribute to developing biotherapeutic drugs, such as antivirals against infectious diseases, for use in clinical practices.
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Affiliation(s)
- Qiong Li
- West China School of Basic Medical Sciences and Forensic Medicine, State Key Laboratory of Biotherapy and Cancer Center, and West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, PR China
| | - Li Zhou
- Key Laboratory of Molecular Biology for Infectious Diseases (Ministry of Education), Institute for Viral Hepatitis, Department of Infectious Diseases, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, 400016, PR China
| | - Siyuan Qin
- West China School of Basic Medical Sciences and Forensic Medicine, State Key Laboratory of Biotherapy and Cancer Center, and West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, PR China
| | - Zhao Huang
- West China School of Basic Medical Sciences and Forensic Medicine, State Key Laboratory of Biotherapy and Cancer Center, and West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, PR China
| | - Bowen Li
- West China School of Basic Medical Sciences and Forensic Medicine, State Key Laboratory of Biotherapy and Cancer Center, and West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, PR China
| | - Ruolan Liu
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Mei Yang
- West China School of Basic Medical Sciences and Forensic Medicine, State Key Laboratory of Biotherapy and Cancer Center, and West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, PR China
| | - Edouard C Nice
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia
| | - Huili Zhu
- Department of Reproductive Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, West China Second University Hospital of Sichuan University, Chengdu, 610041, PR China.
| | - Canhua Huang
- West China School of Basic Medical Sciences and Forensic Medicine, State Key Laboratory of Biotherapy and Cancer Center, and West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, PR China; School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China.
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Fang Y, Wang S, Han S, Zhao Y, Yu C, Liu H, Li N. Targeted protein degrader development for cancer: advances, challenges, and opportunities. Trends Pharmacol Sci 2023; 44:303-317. [PMID: 37059054 DOI: 10.1016/j.tips.2023.03.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 03/08/2023] [Accepted: 03/08/2023] [Indexed: 04/16/2023]
Abstract
Anticancer-targeted therapies inhibit various kinases implicated in cancer and have been used in clinical settings for decades. However, many cancer-related targets are proteins without catalytic activity and are difficult to target using traditional occupancy-driven inhibitors. Targeted protein degradation (TPD) is an emerging therapeutic modality that has expanded the druggable proteome for cancer treatment. With the entry of new-generation immunomodulatory drugs (IMiDs), selective estrogen receptor degraders (SERDs), and proteolysis-targeting chimera (PROTAC) drugs into clinical trials, the field of TPD has seen explosive growth in the past 10 years. Several challenges remain that need to be tackled to increase successful clinical translation of TPD drugs. We present an overview of the global landscape of clinical trials of TPD drugs over the past decade and summarize the clinical profiles of new-generation TPD drugs. In addition, we highlight the challenges and opportunities for the development of effective TPD drugs for future successful clinical translation.
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Affiliation(s)
- Yuan Fang
- Clinical Trials Center, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Shuhang Wang
- Clinical Trials Center, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Songzhe Han
- Department of Chemistry, BeiGene (Beijing) Co. Ltd, Beijing 100020, China
| | - Yizhou Zhao
- Department of Chemistry, BeiGene (Beijing) Co. Ltd, Beijing 100020, China
| | - Cunjing Yu
- Translational Discovery, Research, and Medicine, BeiGene (Beijing) Co. Ltd, Beijing 100020, China
| | - Huaqing Liu
- Department of Chemistry, BeiGene (Beijing) Co. Ltd, Beijing 100020, China
| | - Ning Li
- Clinical Trials Center, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China.
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Cereblon-Recruiting PROTACs: Will New Drugs Have to Face Old Challenges? Pharmaceutics 2023; 15:pharmaceutics15030812. [PMID: 36986673 PMCID: PMC10053963 DOI: 10.3390/pharmaceutics15030812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/24/2023] [Accepted: 02/28/2023] [Indexed: 03/06/2023] Open
Abstract
The classical low-molecular-weight drugs are designed to bind with high affinity to the biological targets endowed with receptor or enzymatic activity, and inhibit their function. However, there are many non-receptor or non-enzymatic disease proteins that seem undruggable using the traditional drug approach. This limitation has been overcome by PROTACs, bifunctional molecules that are able to bind the protein of interest and the E3 ubiquitin ligase complex. This interaction results in the ubiquitination of POI and subsequent proteolysis in the cellular proteasome. Out of hundreds of proteins serving as substrate receptors in E3 ubiquitin ligase complexes, current PROTACs recruit only a few of them, including CRBN, cIAP1, VHL or MDM-2. This review will focus on PROTACs recruiting CRBN E3 ubiquitin ligase and targeting various proteins involved in tumorigenesis, such as transcription factors, kinases, cytokines, enzymes, anti-apoptotic proteins and cellular receptors. The structure of several PROTACs, their chemical and pharmacokinetic properties, target affinity and biological activity in vitro and in vivo, will be discussed. We will also highlight cellular mechanisms that may affect the efficacy of PROTACs and pose a challenge for the future development of PROTACs.
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Hanzl A, Casement R, Imrichova H, Hughes SJ, Barone E, Testa A, Bauer S, Wright J, Brand M, Ciulli A, Winter GE. Functional E3 ligase hotspots and resistance mechanisms to small-molecule degraders. Nat Chem Biol 2023; 19:323-333. [PMID: 36329119 PMCID: PMC7614256 DOI: 10.1038/s41589-022-01177-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 09/20/2022] [Indexed: 11/06/2022]
Abstract
Targeted protein degradation is a novel pharmacology established by drugs that recruit target proteins to E3 ubiquitin ligases. Based on the structure of the degrader and the target, different E3 interfaces are critically involved, thus forming defined 'functional hotspots'. Understanding disruptive mutations in functional hotspots informs on the architecture of the assembly, and highlights residues susceptible to acquire resistance phenotypes. Here we employ haploid genetics to show that hotspot mutations cluster in substrate receptors of hijacked ligases, where mutation type and frequency correlate with gene essentiality. Intersection with deep mutational scanning revealed hotspots that are conserved or specific for chemically distinct degraders and targets. Biophysical and structural validation suggests that hotspot mutations frequently converge on altered ternary complex assembly. Moreover, we validated hotspots mutated in patients that relapse from degrader treatment. In sum, we present a fast and widely accessible methodology to characterize small-molecule degraders and associated resistance mechanisms.
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Affiliation(s)
- Alexander Hanzl
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Ryan Casement
- Division of Biological Chemistry and Drug Discovery, School of Life Sciences, University of Dundee, James Black Centre, Dundee, UK
| | - Hana Imrichova
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Scott J Hughes
- Division of Biological Chemistry and Drug Discovery, School of Life Sciences, University of Dundee, James Black Centre, Dundee, UK
- Amphista Therapeutics Ltd., Newhouse, UK
| | - Eleonora Barone
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Andrea Testa
- Division of Biological Chemistry and Drug Discovery, School of Life Sciences, University of Dundee, James Black Centre, Dundee, UK
- Amphista Therapeutics Ltd., Newhouse, UK
| | - Sophie Bauer
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- Proxygen GmbH, Vienna, Austria
| | - Jane Wright
- Division of Biological Chemistry and Drug Discovery, School of Life Sciences, University of Dundee, James Black Centre, Dundee, UK
| | - Matthias Brand
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- Proxygen GmbH, Vienna, Austria
| | - Alessio Ciulli
- Division of Biological Chemistry and Drug Discovery, School of Life Sciences, University of Dundee, James Black Centre, Dundee, UK.
| | - Georg E Winter
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria.
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Ansari-Pour N, Samur M, Flynt E, Gooding S, Towfic F, Stong N, Estevez MO, Mavrommatis K, Walker B, Morgan G, Munshi N, Avet-Loiseau H, Thakurta A. Whole-genome analysis identifies novel drivers and high-risk double-hit events in relapsed/refractory myeloma. Blood 2023; 141:620-633. [PMID: 36223594 PMCID: PMC10163277 DOI: 10.1182/blood.2022017010] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 09/08/2022] [Accepted: 09/14/2022] [Indexed: 11/20/2022] Open
Abstract
Large-scale analyses of genomic data from patients with newly diagnosed multiple myeloma (ndMM) have been undertaken, however, large-scale analysis of relapsed/refractory MM (rrMM) has not been performed. We hypothesize that somatic variants chronicle the therapeutic exposures and clonal structure of myeloma from ndMM to rrMM stages. We generated whole-genome sequencing (WGS) data from 418 tumors (386 patients) derived from 6 rrMM clinical trials and compared them with WGS from 198 unrelated patients with ndMM in a population-based case-control fashion. We identified significantly enriched events at the rrMM stage, including drivers (DUOX2, EZH2, TP53), biallelic inactivation (TP53), noncoding mutations in bona fide drivers (TP53BP1, BLM), copy number aberrations (CNAs; 1qGain, 17pLOH), and double-hit events (Amp1q-ISS3, 1qGain-17p loss-of-heterozygosity). Mutational signature analysis identified a subclonal defective mismatch repair signature enriched in rrMM and highly active in high mutation burden tumors, a likely feature of therapy-associated expanding subclones. Further analysis focused on the association of genomic aberrations enriched at different stages of resistance to immunomodulatory agent (IMiD)-based therapy. This analysis revealed that TP53, DUOX2, 1qGain, and 17p loss-of-heterozygosity increased in prevalence from ndMM to lenalidomide resistant (LENR) to pomalidomide resistant (POMR) stages, whereas enrichment of MAML3 along with immunoglobulin lambda (IGL) and MYC translocations distinguished POM from the LEN subgroup. Genomic drivers associated with rrMM are those that confer clonal selective advantage under therapeutic pressure. Their role in therapy evasion should be further evaluated in longitudinal patient samples, to confirm these associations with the evolution of clinical resistance and to identify molecular subsets of rrMM for the development of targeted therapies.
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Affiliation(s)
- Naser Ansari-Pour
- Medical Research Council Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
- National Institute for Health and Care Research Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Mehmet Samur
- Dana-Farber Cancer Institute, Boston, MA
- Harvard T.H. Chan School of Public Health, Boston, MA
| | - Erin Flynt
- Translational Medicine, Bristol Myers Squibb, Summit, NJ
| | - Sarah Gooding
- Medical Research Council Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
- National Institute for Health and Care Research Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
- Department of Haematology, Oxford University Hospitals NHS Trust, Oxford, United Kingdom
- Oxford Centre for Translational Myeloma Research, University of Oxford, Oxford, United Kingdom
| | | | | | - Maria Ortiz Estevez
- Predictive Sciences, BMS Center for Innovation and Translational Research Europe, A Bristol Myers Squibb Company, Sevilla, Spain
| | | | - Brian Walker
- Melvin and Bren Simon Comprehensive Cancer Center, Division of Hematology Oncology, Indiana University, Indianapolis, IN
| | - Gareth Morgan
- Perlmutter Cancer Center, NYU Langone Medical Center, New York, NY
| | - Nikhil Munshi
- Dana-Farber Cancer Institute, Boston, MA
- VA Boston Healthcare System, West Roxbury, MA
- Harvard Medical School, Boston, MA
| | | | - Anjan Thakurta
- Oxford Centre for Translational Myeloma Research, University of Oxford, Oxford, United Kingdom
- Bristol Myers Squibb, Summit, NJ
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Disease, University of Oxford, Oxford, United Kingdom
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Kulig P, Milczarek S, Bakinowska E, Szalewska L, Baumert B, Machaliński B. Lenalidomide in Multiple Myeloma: Review of Resistance Mechanisms, Current Treatment Strategies and Future Perspectives. Cancers (Basel) 2023; 15:963. [PMID: 36765919 PMCID: PMC9913106 DOI: 10.3390/cancers15030963] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 01/26/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Abstract
Multiple myeloma (MM) is the second most common hematologic malignancy, accounting for approximately 1% of all cancers. Despite the initial poor prognosis for MM patients, their life expectancy has improved significantly with the development of novel agents. Immunomodulatory drugs (IMiDs) are widely used in MM therapy. Their implementation has been a milestone in improving the clinical outcomes of patients. The first molecule belonging to the IMiDs was thalidomide. Subsequently, its novel derivatives, lenalidomide (LEN) and pomalidomide (POM), were implemented. Almost all MM patients are exposed to LEN, which is the most commonly used IMiD. Despite the potent anti-MM activity of LEN, some patients eventually relapse and become LEN-resistant. Drug resistance is one of the greatest challenges of modern oncology and has become the main cause of cancer treatment failures. The number of patients receiving LEN is increasing, hence the problem of LEN resistance has become a great obstacle for hematologists worldwide. In this review, we intended to shed more light on the pathophysiology of LEN resistance in MM, with particular emphasis on the molecular background. Moreover, we have briefly summarized strategies to overcome LEN resistance and we have outlined future directions.
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Affiliation(s)
- Piotr Kulig
- Department of General Pathology, Pomeranian Medical University, 70-111 Szczecin, Poland
| | - Sławomir Milczarek
- Department of General Pathology, Pomeranian Medical University, 70-111 Szczecin, Poland
- Department of Hematology and Transplantology, Pomeranian Medical University, 71-252 Szczecin, Poland
| | - Estera Bakinowska
- Department of General Pathology, Pomeranian Medical University, 70-111 Szczecin, Poland
| | - Laura Szalewska
- Department of General Pathology, Pomeranian Medical University, 70-111 Szczecin, Poland
| | - Bartłomiej Baumert
- Department of General Pathology, Pomeranian Medical University, 70-111 Szczecin, Poland
- Department of Hematology and Transplantology, Pomeranian Medical University, 71-252 Szczecin, Poland
| | - Bogusław Machaliński
- Department of General Pathology, Pomeranian Medical University, 70-111 Szczecin, Poland
- Department of Hematology and Transplantology, Pomeranian Medical University, 71-252 Szczecin, Poland
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Chojnacka M, Diamond B, Ziccheddu B, Rustad E, Maclachlan K, Papadimitriou M, Boyle EM, Blaney P, Usmani S, Morgan G, Landgren O, Maura F. Impact of rare structural variant events in newly diagnosed multiple myeloma. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.03.522573. [PMID: 36711679 PMCID: PMC9881878 DOI: 10.1101/2023.01.03.522573] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Whole genome sequencing (WGS) of newly diagnosed multiple myeloma patients (NDMM) has shown recurrent structural variant (SV) involvement in distinct regions of the genome (i.e. hotspots) and causing recurrent copy number alterations. Together with canonical immunoglobulin translocations, these SVs are recognized as "recurrent SVs". More than half SVs were not involved in recurrent events. The significance of these "rare SVs" has not been previously examined. In this study, we utilize 752 WGS and 591 RNA-seq data from NDMM patients to determine the role of rare SVs in myeloma pathogenesis. 94% of patients harbored at least one rare SV event. Rare SVs showed an SV-class specific enrichment within genes and superenhancers associated with outlier gene expression. Furthermore, known myeloma driver genes recurrently impacted by point mutations were dysregulated by rare SVs. Overall, we demonstrate the association of rare SVs with aberrant gene expression supporting a driver role in myeloma pathogenesis. SIGNIFICANCE Characterization of multiple myeloma genome revealed that more than half structural variants are not involved in recurrent events. Here, we demonstrate that these rare SVs hold potential for myeloma pathogenesis through their gene expression impact. Rare SVs contribute to MM heterogeneity and have implications for development of individualized treatment.
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43
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CIDE-stepping E3s. Nat Chem Biol 2023; 19:3-4. [PMID: 36577874 DOI: 10.1038/s41589-022-01217-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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44
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Fuchs O. Targeting cereblon in hematologic malignancies. Blood Rev 2023; 57:100994. [PMID: 35933246 DOI: 10.1016/j.blre.2022.100994] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 07/26/2022] [Accepted: 07/27/2022] [Indexed: 01/28/2023]
Abstract
The protein cereblon (CRBN) is a substrate receptor of the cullin 4-really interesting new gene (RING) E3 ubiquitin ligase complex CRL4CRBN. Targeting CRBN mediates selective protein ubiquitination and subsequent degradation via the proteasome. This review describes novel thalidomide analogs, immunomodulatory drugs, also known as CRBN E3 ubiquitin ligase modulators or molecular glues (avadomide, iberdomide, CC-885, CC-90009, BTX-1188, CC-92480, CC-99282, CFT7455, and CC-91633), and CRBN-based proteolysis targeting chimeras (PROTACs) with increased efficacy and potent activity for application in hematologic malignancies. Both types of CRBN-binding drugs, molecular glues, and PROTACs stimulate the interaction between CRBN and its neosubstrates, recruiting target disease-promoting proteins and the E3 ubiquitin ligase CRL4CRBN. Proteins that are traditionally difficult to target (transcription factors and oncoproteins) can be polyubiquitinated and degraded in this way. The competition of CRBN neosubstrates with endogenous CRBN-interacting proteins and the pharmacology and rational combination therapies of and mechanisms of resistance to CRL4CRBN modulators or CRBN-based PROTACs are described.
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Affiliation(s)
- Ota Fuchs
- Institute of Hematology and Blood Transfusion, U Nemocnice 1, 12800 Praha 2, Czech Republic.
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45
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Aktas Samur A, Fulciniti M, Avet-Loiseau H, Lopez MA, Derebail S, Corre J, Minvielle S, Magrangeas F, Moreau P, Anderson KC, Parmigiani G, Samur MK, Munshi NC. In-depth analysis of alternative splicing landscape in multiple myeloma and potential role of dysregulated splicing factors. Blood Cancer J 2022; 12:171. [PMID: 36535935 PMCID: PMC9763261 DOI: 10.1038/s41408-022-00759-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 11/09/2022] [Accepted: 11/22/2022] [Indexed: 12/24/2022] Open
Abstract
Splicing changes are common in cancer and are associated with dysregulated splicing factors. Here, we analyzed RNA-seq data from 323 newly diagnosed multiple myeloma (MM) patients and described the alternative splicing (AS) landscape. We observed a large number of splicing pattern changes in MM cells compared to normal plasma cells (NPC). The most common events were alterations of mutually exclusive exons and exon skipping. Most of these events were observed in the absence of overall changes in gene expression and often impacted the coding potential of the alternatively spliced genes. To understand the molecular mechanisms driving frequent aberrant AS, we investigated 115 splicing factors (SFs) and associated them with the AS events in MM. We observed that ~40% of SFs were dysregulated in MM cells compared to NPC and found a significant enrichment of SRSF1, SRSF9, and PCB1 binding motifs around AS events. Importantly, SRSF1 overexpression was linked with shorter survival in two independent MM datasets and was correlated with the number of AS events, impacting tumor cell proliferation. Together with the observation that MM cells are vulnerable to splicing inhibition, our results may lay the foundation for developing new therapeutic strategies for MM. We have developed a web portal that allows custom alternative splicing event queries by using gene symbols and visualizes AS events in MM and subgroups. Our portals can be accessed at http://rconnect.dfci.harvard.edu/mmsplicing/ and https://rconnect.dfci.harvard.edu/mmleafcutter/ .
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Affiliation(s)
- Anil Aktas Samur
- Department of Data Science, Dana Farber Cancer Institute, Boston, MA, 02215, USA
- Department of Biostatistics, Harvard T.H. Chan School of Public Health Boston, Boston, MA, 02115, USA
| | - Mariateresa Fulciniti
- Department of Medical Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Herve Avet-Loiseau
- University Cancer Center of Toulouse Institut National de la Santé, Toulouse, France
| | - Michael A Lopez
- Memorial Sloan Kettering Cancer Center, New York, 10065, USA
| | - Sanika Derebail
- Department of Medical Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Jill Corre
- University Cancer Center of Toulouse Institut National de la Santé, Toulouse, France
| | - Stephane Minvielle
- Inserm UMR892, CNRS 6299, Université de Nantes; Centre Hospitalier Universitaire de Nantes, Unité Mixte de Genomique du Cancer, Nantes, France
| | - Florence Magrangeas
- Inserm UMR892, CNRS 6299, Université de Nantes; Centre Hospitalier Universitaire de Nantes, Unité Mixte de Genomique du Cancer, Nantes, France
| | - Philippe Moreau
- Inserm UMR892, CNRS 6299, Université de Nantes; Centre Hospitalier Universitaire de Nantes, Unité Mixte de Genomique du Cancer, Nantes, France
| | - Kenneth C Anderson
- Department of Medical Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA, 02115, USA
| | - Giovanni Parmigiani
- Department of Data Science, Dana Farber Cancer Institute, Boston, MA, 02215, USA.
- Department of Biostatistics, Harvard T.H. Chan School of Public Health Boston, Boston, MA, 02115, USA.
| | - Mehmet K Samur
- Department of Data Science, Dana Farber Cancer Institute, Boston, MA, 02215, USA.
- Department of Biostatistics, Harvard T.H. Chan School of Public Health Boston, Boston, MA, 02115, USA.
| | - Nikhil C Munshi
- Department of Medical Oncology, Dana Farber Cancer Institute, Harvard Medical School, Boston, MA, 02115, USA.
- VA Boston Healthcare System, Boston, MA, 02115, USA.
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46
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Li D, Yu D, Li Y, Yang R. A bibliometric analysis of PROTAC from 2001 to 2021. Eur J Med Chem 2022; 244:114838. [DOI: 10.1016/j.ejmech.2022.114838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/04/2022] [Accepted: 10/07/2022] [Indexed: 11/30/2022]
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Zuo X, Liu D. Mechanism of immunomodulatory drug resistance and novel therapeutic strategies in multiple myeloma. HEMATOLOGY (AMSTERDAM, NETHERLANDS) 2022; 27:1110-1121. [PMID: 36121114 DOI: 10.1080/16078454.2022.2124694] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVE The mechanism of immunomodulatory drugs (IMiDs) resistance to multiple myeloma (MM) cells has been gradually demonstrated by recently studies, and some potential novel strategies have been confirmed to have antimyeloma activity and be associated with IMiD activity in MM. METHODS This article searched the Pubmed library, reviewed some recently studies related to IMiD resistance to MM cells and summarized some potent agents to improve IMiD resistance to MM cells. RESULTS Studies have confirmed that cereblon is a primary direct protein target of IMiDs. IRF4 not only is affected by the IKZF protein but also can directly inhibit the expression of BMF and BIM, thereby promoting the survival of MM cells. Additionally, the expression of IRF4 and MYC also plays an important role in three important signaling pathways (Wnt, STAT3 and MAPK/ERK) related to IMiD resistance. Notably, MYC, a downstream factor of IRF4, may be upregulated by BRD4, and upregulation of MYC promotes cell proliferation in MM and disease progression. Recently, some novel therapeutic agents targeting BRD4, a histone modification-related 'reader' of epigenetic marks, or other important factors (e.g. TAK1) in relevant signaling pathways have been developed and they may provide new options for relapse/refractory MM therapy, such as BET inhibitors, CBP/EP300 inhibitors, dual-target BET-CBP/EP300 inhibitors, TAK1 inhibitors, and they may provide new options for relapsed/refractory MM therapy. CONCLUSIONS Accumulated studies have revealed that some key factors associated with the mechanism of IMiD resistance to MM cells. Some agents represent promising new therapeutics of MM to regulate the IRF4/MYC axis by inhibiting BRD4 expression or signaling pathway activation.
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Affiliation(s)
- Xiaojia Zuo
- Department of Hematology, Shanghai Gongli Hospital, The Second Military Medical University, Shanghai, People's Republic of China.,Department of Oncology and Hematology, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai, People's Republic of China.,Guizhou Medical University, Guiyang, People's Republic of China
| | - Dingsheng Liu
- Department of Hematology, Shanghai Gongli Hospital, The Second Military Medical University, Shanghai, People's Republic of China
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48
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Chen LY, Gooding S. Tumor and microenvironmental mechanisms of resistance to immunomodulatory drugs in multiple myeloma. Front Oncol 2022; 12:1038329. [PMID: 36439455 PMCID: PMC9682014 DOI: 10.3389/fonc.2022.1038329] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 10/04/2022] [Indexed: 10/07/2023] Open
Abstract
Resistance to immunomodulatory drugs (IMiDs®) is a major cause of treatment failure, disease relapse and ultimately poorer outcomes in multiple myeloma (MM). In order to optimally deploy IMiDs and their newer derivates CRBN E3 ligase modulators (CELMoDs®) into future myeloma therapeutic regimens, it is imperative to understand the mechanisms behind the inevitable emergence of IMiD resistance. IMiDs bind and modulate Cereblon (CRBN), the substrate receptor of the CUL4CRBN E3 ubiquitin ligase, to target novel substrate proteins for ubiquitination and degradation. Most important of these are IKZF1 and IKZF3, key MM survival transcription factors which sustain the expression of myeloma oncogenes IRF4 and MYC. IMiDs directly target MM cell proliferation, but also stimulate T/NK cell activation by their CRBN-mediated effects, and therefore enhance anti-MM immunity. Thus, their benefits in myeloma are directed against tumor and immune microenvironment - and in considering the mechanisms by which IMiD resistance emerges, both these effects must be appraised. CRBN-dependent mechanisms of IMiD resistance, including CRBN genetic aberrations, CRBN protein loss and CRBN-substrate binding defects, are beginning to be understood. However, only a proportion of IMiD-resistant cases are related to CRBN and therefore additional mechanisms, which are currently less well described, need to be sought. These include resistance within the immune microenvironment. Here we review the existing evidence on both tumor and immune microenvironment mechanisms of resistance to IMiDs, pose important questions for future study, and consider how knowledge regarding resistance mechanism may be utilized to guide treatment decision making in the clinic.
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Affiliation(s)
- Lucia Y. Chen
- Department of Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
- Oxford Centre for Translational Myeloma Research, University of Oxford, Oxford, United Kingdom
| | - Sarah Gooding
- Department of Haematology, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
- Oxford Centre for Translational Myeloma Research, University of Oxford, Oxford, United Kingdom
- MRC Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
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49
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Mejia Saldarriaga M, Darwiche W, Jayabalan D, Monge J, Rosenbaum C, Pearse RN, Niesvizky R, Bustoros M. Advances in the molecular characterization of multiple myeloma and mechanism of therapeutic resistance. Front Oncol 2022; 12:1020011. [PMID: 36387095 PMCID: PMC9646612 DOI: 10.3389/fonc.2022.1020011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 10/07/2022] [Indexed: 11/25/2022] Open
Abstract
Recent insight in the genomic landscape of newly diagnosed multiple myeloma (NDMM) and its precursor conditions, monoclonal gammopathy of uncertain significance (MGUS), and smoldering myeloma have allowed the identification of patients with precursor conditions with a high risk of progression. These cases with "progressor" MGUS/SMM have a higher average mutation burden, have higher rates of mutations in specific genes such as MAPK, DNA repair, MYC, DIS3, and are enriched for specific mutational signatures when compared to non-progressors and are comparable to those found in NDMM. The highly preserved clonal heterogeneity seen upon progression of SMM, combined with the importance of these early variables, suggests that the identification of progressors based on these findings could complement and enhance the currently available clinical models based on tumor burden. Mechanisms leading to relapse/refractory multiple myeloma (RRMM) are of clinical interest given worse overall survival in this population. An Increased mutational burden is seen in patients with RRMM when compared to NDMM, however, there is evidence of branching evolution with many of these mutations being present at the subclonal level. Likewise, alterations in proteins associated with proteosome inhibitor and immunomodulatory drugs activity could partially explain clinical resistance to these agents. Evidence of chromosomal events leading to copy number changes is seen, with the presence of TP53 deletion, mutation, or a combination of both being present in many cases. Additional chromosomal events such as 1q gain and amplification may also interact and lead to resistance.
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Affiliation(s)
| | | | | | | | | | | | | | - Mark Bustoros
- Division of Hematology and Medical Oncology, Department of Medicine, Weill Cornell Medicine, New York, NY, United States
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50
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Gooding S, Ansari-Pour N, Kazeroun M, Karagoz K, Polonskaia A, Salazar M, Fitzsimons E, Sirinukunwattana K, Chavda S, Ortiz Estevez M, Towfic F, Flynt E, Pierceall W, Royston D, Yong K, Ramasamy K, Vyas P, Thakurta A. Loss of COP9 signalosome genes at 2q37 is associated with IMiD resistance in multiple myeloma. Blood 2022; 140:1816-1821. [PMID: 35853156 PMCID: PMC10653034 DOI: 10.1182/blood.2022015909] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 06/30/2022] [Indexed: 11/20/2022] Open
Abstract
The acquisition of a multidrug refractory state is a major cause of mortality in myeloma. Myeloma drugs that target the cereblon (CRBN) protein include widely used immunomodulatory drugs (IMiDs), and newer CRBN E3 ligase modulator drugs (CELMoDs), in clinical trials. CRBN genetic disruption causes resistance and poor outcomes with IMiDs. Here, we investigate alternative genomic associations of IMiD resistance, using large whole-genome sequencing patient datasets (n = 522 cases) at newly diagnosed, lenalidomide (LEN)-refractory and lenalidomide-then-pomalidomide (LEN-then-POM)-refractory timepoints. Selecting gene targets reproducibly identified by published CRISPR/shRNA IMiD resistance screens, we found little evidence of genetic disruption by mutation associated with IMiD resistance. However, we identified a chromosome region, 2q37, containing COP9 signalosome members COPS7B and COPS8, copy loss of which significantly enriches between newly diagnosed (incidence 5.5%), LEN-refractory (10.0%), and LEN-then-POM-refractory states (16.4%), and may adversely affect outcomes when clonal fraction is high. In a separate dataset (50 patients) with sequential samples taken throughout treatment, we identified acquisition of 2q37 loss in 16% cases with IMiD exposure, but none in cases without IMiD exposure. The COP9 signalosome is essential for maintenance of the CUL4-DDB1-CRBN E3 ubiquitin ligase. This region may represent a novel marker of IMiD resistance with clinical utility.
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Affiliation(s)
- Sarah Gooding
- MRC Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
- Department of Haematology, Oxford University Hospitals NHS Trust, Oxford, United Kingdom
- NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
- Oxford Centre for Translational Myeloma Research, University of Oxford, Oxford, United Kingdom
| | - Naser Ansari-Pour
- MRC Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
- NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Mohammad Kazeroun
- MRC Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
- NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Kubra Karagoz
- Translational Medicine, Bristol Myers Squibb, Summit, NJ
| | - Ann Polonskaia
- Translational Medicine, Bristol Myers Squibb, Summit, NJ
| | - Mirian Salazar
- MRC Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
- NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
- Oxford Centre for Translational Myeloma Research, University of Oxford, Oxford, United Kingdom
| | - Evie Fitzsimons
- Department of Haematology, Cancer Institute, University College London, United Kingdom
| | | | - Selina Chavda
- Department of Haematology, Cancer Institute, University College London, United Kingdom
| | - Maria Ortiz Estevez
- Bristol Myers Squibb Center for Innovation and Translational Research Europe, Sevilla, Spain
| | | | - Erin Flynt
- Translational Medicine, Bristol Myers Squibb, Summit, NJ
| | | | - Daniel Royston
- Nuffield Department of Cellular and Laboratory Sciences, University of Oxford, Oxford, United Kingdom
| | - Kwee Yong
- Department of Haematology, Cancer Institute, University College London, United Kingdom
| | - Karthik Ramasamy
- Department of Haematology, Oxford University Hospitals NHS Trust, Oxford, United Kingdom
- NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
- Oxford Centre for Translational Myeloma Research, University of Oxford, Oxford, United Kingdom
| | - Paresh Vyas
- MRC Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom
- Department of Haematology, Oxford University Hospitals NHS Trust, Oxford, United Kingdom
- NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Anjan Thakurta
- Oxford Centre for Translational Myeloma Research, University of Oxford, Oxford, United Kingdom
- Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
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