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Liu J, Li S, Wang Q, Feng Y, Xing H, Yang X, Guo Y, Guo Y, Sun H, Liu X, Yang S, Mei Z, Zhu Y, Cheng Z, Chen S, Xu M, Zhang W, Wan N, Wang J, Ma Y, Zhang S, Luan X, Xu A, Li L, Wang H, Yang X, Hong Y, Xue H, Yuan X, Hu N, Song X, Wang Z, Liu X, Wang L, Liu Y. Sonrotoclax overcomes BCL2 G101V mutation-induced venetoclax resistance in preclinical models of hematologic malignancy. Blood 2024; 143:1825-1836. [PMID: 38211332 PMCID: PMC11076911 DOI: 10.1182/blood.2023019706] [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: 01/20/2023] [Revised: 12/27/2023] [Accepted: 12/27/2023] [Indexed: 01/13/2024] Open
Abstract
ABSTRACT Venetoclax, the first-generation inhibitor of the apoptosis regulator B-cell lymphoma 2 (BCL2), disrupts the interaction between BCL2 and proapoptotic proteins, promoting the apoptosis in malignant cells. Venetoclax is the mainstay of therapy for relapsed chronic lymphocytic leukemia and is under investigation in multiple clinical trials for the treatment of various cancers. Although venetoclax treatment can result in high rates of durable remission, relapse has been widely observed, indicating the emergence of drug resistance. The G101V mutation in BCL2 is frequently observed in patients who relapsed treated with venetoclax and sufficient to confer resistance to venetoclax by interfering with compound binding. Therefore, the development of next-generation BCL2 inhibitors to overcome drug resistance is urgently needed. In this study, we discovered that sonrotoclax, a potent and selective BCL2 inhibitor, demonstrates stronger cytotoxic activity in various hematologic cancer cells and more profound tumor growth inhibition in multiple hematologic tumor models than venetoclax. Notably, sonrotoclax effectively inhibits venetoclax-resistant BCL2 variants, such as G101V. The crystal structures of wild-type BCL2/BCL2 G101V in complex with sonrotoclax revealed that sonrotoclax adopts a novel binding mode within the P2 pocket of BCL2 and could explain why sonrotoclax maintains stronger potency than venetoclax against the G101V mutant. In summary, sonrotoclax emerges as a potential second-generation BCL2 inhibitor for the treatment of hematologic malignancies with the potential to overcome BCL2 mutation-induced venetoclax resistance. Sonrotoclax is currently under investigation in multiple clinical trials.
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Affiliation(s)
- Jiuyang Liu
- Department of Molecular Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Shuran Li
- Department of Pharmacology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Qin Wang
- Department of Discovery Biology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Yingcai Feng
- Department of Molecular Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Haimei Xing
- Department of Discovery Biology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Xuefei Yang
- Department of Discovery Biology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Ying Guo
- Department of Molecular Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Yunhang Guo
- Department of Medicinal Chemistry, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Hanzi Sun
- Department of Molecular Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Xiaoxin Liu
- Department of Molecular Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Shasha Yang
- Department of Pharmacology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Zhu Mei
- Department of Discovery Biology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Yutong Zhu
- Department of Discovery Biology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Zhenzhen Cheng
- Department of Discovery Biology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Shuaishuai Chen
- Department of Discovery Biology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Min Xu
- Department of Molecular Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Wenjing Zhang
- Department of Translational Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Nanyan Wan
- Department of Translational Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Jia Wang
- Department of Bioinformatics, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Yanwen Ma
- Department of Pharmacology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Shuo Zhang
- Department of Pharmacology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Xudong Luan
- Department of Discovery Biology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Aiying Xu
- Department of Pharmacology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Lin Li
- Department of Translational Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Haitao Wang
- Department of Translational Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Xiaolong Yang
- Department of Pharmacology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Yuan Hong
- Department of Molecular Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Hai Xue
- Department of Medicinal Chemistry, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Xi Yuan
- Department of Discovery Biology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Nan Hu
- Department of Pharmacology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Xiaomin Song
- Department of Pharmacology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Zhiwei Wang
- Department of Medicinal Chemistry, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Xuesong Liu
- Department of Discovery Biology, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Lai Wang
- Research and Clinical Development, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
| | - Ye Liu
- Department of Molecular Science, BeiGene (Beijing) Co, Ltd, Beijing, People’s Republic of China
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Galas-Filipowicz D, Chavda SJ, Gong JN, Huang DCS, Khwaja A, Yong K. Co-operation of MCL-1 and BCL-X L anti-apoptotic proteins in stromal protection of MM cells from carfilzomib mediated cytotoxicity. Front Oncol 2024; 14:1394393. [PMID: 38651147 PMCID: PMC11033393 DOI: 10.3389/fonc.2024.1394393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 03/25/2024] [Indexed: 04/25/2024] Open
Abstract
Introduction BCL-2 family proteins are important for tumour cell survival and drug resistance in multiple myeloma (MM). Although proteasome inhibitors are effective anti-myeloma drugs, some patients are resistant and almost all eventually relapse. We examined the function of BCL-2 family proteins in stromal-mediated resistance to carfilzomib-induced cytotoxicity in MM cells. Methods Co-cultures employing HS5 stromal cells were used to model the interaction with stroma. MM cells were exposed to CFZ in a 1-hour pulse method. The expression of BCL-2 family proteins was assessed by flow cytometry and WB. Pro-survival proteins: MCL-1, BCL-2 and BCL-XL were inhibited using S63845, ABT-199 and A-1331852 respectively. Changes in BIM binding partners were examined by immunoprecipitation and WB. Results CFZ induced dose-dependent cell death of MM cells, primarily mediated by apoptosis. Culture of MM cells on HS-5 stromal cells resulted in reduced cytotoxicity to CFZ in a cell contact-dependent manner, upregulated expression of MCL-1 and increased dependency on BCL-XL. Inhibiting BCL-XL or MCL-1 with BH-3 mimetics abrogated stromal-mediated protection only at high doses, which may not be achievable in vivo. However, combining BH-3 mimetics at sub-therapeutic doses, which alone were without effect, significantly enhanced CFZ-mediated cytotoxicity even in the presence of stroma. Furthermore, MCL-1 inhibition led to enhanced binding between BCL-XL and BIM, while blocking BCL-XL increased MCL-1/BIM complex formation, indicating the cooperative role of these proteins. Conclusion Stromal interactions alter the dependence on BCL-2 family members, providing a rationale for dual inhibition to abrogate the protective effect of stroma and restore sensitivity to CFZ.
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Affiliation(s)
| | - Selina J. Chavda
- Cancer Institute, University College London, London, United Kingdom
| | - Jia-Nan Gong
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
- Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - David C. S. Huang
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Asim Khwaja
- Cancer Institute, University College London, London, United Kingdom
| | - Kwee Yong
- Cancer Institute, University College London, London, United Kingdom
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3
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Kleber M, Ntanasis-Stathopoulos I, Terpos E. The Role of t(11;14) in Tailoring Treatment Decisions in Multiple Myeloma. Cancers (Basel) 2023; 15:5829. [PMID: 38136374 PMCID: PMC10742268 DOI: 10.3390/cancers15245829] [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: 11/18/2023] [Revised: 12/07/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023] Open
Abstract
Multiple myeloma (MM) represents a hematological neoplasia with an uncontrolled proliferation of malignant plasma cells and complex cytogenetic abnormalities. t(11;14) has emerged as a crucial genetic aberration and is one of the most common primary translocations in MM. Patients harboring t(11;14) represent a distinctive subgroup with a clinical profile that differs from t(11;14)-negative MM risk categories. One of the key features linked with t(11;14) is the BCL2 dependency, indicating vulnerability to BCL2 inhibition. BCL2 inhibitors, such as venetoclax, demonstrated impressive efficacy alone or in combination with other anti-myeloma drugs in patients with RRMM accompanied by t(11;14) and BCL2 overexpression. Therefore, t(11;14) plays a key role in both risk stratification and informed decision making towards a tailored therapy. In this review, we highlight the biology of t(11;14) in MM cells, summarize the current evolving role of t(11;14) in the era of novel agents and novel targeted therapies, illuminate current efficacy and safety data of BCL2-based treatment options and explore the future prospects of individualized precision medicine for this special subgroup of patients with MM.
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Affiliation(s)
- Martina Kleber
- Department of Internal Medicine, Clinic Hirslanden Zurich, 8032 Zurich, Switzerland;
- Faculty of Medicine, University of Basel, 4031 Basel, Switzerland
| | - Ioannis Ntanasis-Stathopoulos
- Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
| | - Evangelos Terpos
- Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece
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4
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Beltrán-Visiedo M, Jiménez-Alduán N, Díez R, Cuenca M, Benedi A, Serrano-Del Valle A, Azaceta G, Palomera L, Peperzak V, Anel A, Naval J, Marzo I. Dinaciclib synergizes with BH3 mimetics targeting BCL-2 and BCL-X L in multiple myeloma cell lines partially dependent on MCL-1 and in plasma cells from patients. Mol Oncol 2023; 17:2507-2525. [PMID: 37704591 DOI: 10.1002/1878-0261.13522] [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: 05/08/2023] [Revised: 08/01/2023] [Accepted: 09/12/2023] [Indexed: 09/15/2023] Open
Abstract
A better understanding of multiple myeloma (MM) biology has led to the development of novel therapies. However, MM is still an incurable disease and new pharmacological strategies are needed. Dinaciclib, a multiple cyclin-dependent kinase (CDK) inhibitor, which inhibits CDK1, 2, 5 and 9, displays significant antimyeloma activity as found in phase II clinical trials. In this study, we have explored the mechanism of dinaciclib-induced death and evaluated its enhancement by different BH3 mimetics in MM cell lines as well as in plasma cells from MM patients. Our results indicate a synergistic effect of dinaciclib-based combinations with B-cell lymphoma 2 or B-cell lymphoma extra-large inhibitors, especially in MM cell lines with partial dependence on myeloid cell leukemia sequence 1 (MCL-1). Simultaneous treatment with dinaciclib and BH3 mimetics ABT-199 or A-1155463 additionally showed a synergistic effect in plasma cells from MM patients, ex vivo. Altered MM cytogenetics did not affect dinaciclib response ex vivo, alone or in combined treatment, suggesting that these combinations could be a suitable therapeutic option for patients bearing cytogenetic alterations and poor prognosis. This work also opens the possibility to explore cyclin-dependent kinase 9 inhibition as a targeted therapy in MM patients overexpressing or with high dependence on MCL-1.
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Affiliation(s)
| | | | - Rosana Díez
- Apoptosis, Immunity & Cancer Group, IIS Aragón, University of Zaragoza, Spain
- Hematology Service, Hospital Universitario Miguel Servet, Zaragoza, Spain
| | - Marta Cuenca
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, The Netherlands
| | - Andrea Benedi
- Apoptosis, Immunity & Cancer Group, IIS Aragón, University of Zaragoza, Spain
| | | | - Gemma Azaceta
- Hematology Service, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain
- HCU-Lozano Blesa-Hematology Research Group, IIS Aragón, Instituto Aragonés de Ciencias de la Salud, Zaragoza, Spain
| | - Luis Palomera
- Hematology Service, Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain
- HCU-Lozano Blesa-Hematology Research Group, IIS Aragón, Instituto Aragonés de Ciencias de la Salud, Zaragoza, Spain
| | - Victor Peperzak
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, The Netherlands
| | - Alberto Anel
- Apoptosis, Immunity & Cancer Group, IIS Aragón, University of Zaragoza, Spain
| | - Javier Naval
- Apoptosis, Immunity & Cancer Group, IIS Aragón, University of Zaragoza, Spain
| | - Isabel Marzo
- Apoptosis, Immunity & Cancer Group, IIS Aragón, University of Zaragoza, Spain
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5
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Champion O, Soler A, Maïga S, Bellanger C, Pellat-Deceunynck C, Talbot A, Touzeau C, Amiot M, Gomez-Bougie P. BCLXL PROTAC degrader DT2216 targets secondary plasma cell leukemia addicted to BCLXL for survival. Front Oncol 2023; 13:1196005. [PMID: 37534243 PMCID: PMC10393035 DOI: 10.3389/fonc.2023.1196005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 06/27/2023] [Indexed: 08/04/2023] Open
Abstract
Secondary plasma cell leukemia (sPCL) is a rare form of aggressive plasma cell malignancy arising mostly at end-stage refractory multiple myeloma and consequently presenting limited therapeutic options. We analyzed 13 sPCL for their sensitivity to BH3 mimetics targeting either BCL2 (venetoclax) or BCLXL (A1155463) and showed that 3 sPCL were efficiently killed by venetoclax and 3 sPCL by A1155463. Accordingly, BH3 profiling of 2 sPCL sensitive to BCLXL inhibition confirmed their high BCLXL primed profile. While targeting BCLXL using BH3 mimetics induces platelets on-target drug toxicity, the recent development of DT2216, a clinical-stage BCLXL proteolysis targeting chimera PROTAC compound, provides an alternative strategy to target BCLXL. Indeed, DT2216 specifically degrades BCLXL via VHL E3 ligase, without inducing thrombocytopenia. We demonstrated in human myeloma cell lines and sPCL that sensitivity to DT2216 strongly correlated with the sensitivity to A1155463. Interestingly, we showed that low doses of DT2216 (nM range) were sufficient to specifically degrade BCLXL after 48 hours of treatment, consistent with VHL expression, in all cell lines but irrespectively to DT2216 sensitivity. In myeloma cells, DT2216 induced apoptotic cell death and triggered BAX and BAK activation. In conclusion, our study demonstrated that patients with sPCL addicted to BCLXL, a small but a very challenging group, could potentially receive therapeutic benefit from DT2216. Clinical trials of DT2216 in this subset of sPCL patients are warranted.
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Affiliation(s)
- Ophélie Champion
- Nantes Université, Inserm, CNRS, Université d’Angers, Centre de Recherche en Cancérologie et Immunologie Intégrée Nantes Angers (CRCI2NA), Nantes, France
| | - Alana Soler
- Nantes Université, Inserm, CNRS, Université d’Angers, Centre de Recherche en Cancérologie et Immunologie Intégrée Nantes Angers (CRCI2NA), Nantes, France
| | - Sophie Maïga
- Nantes Université, Inserm, CNRS, Université d’Angers, Centre de Recherche en Cancérologie et Immunologie Intégrée Nantes Angers (CRCI2NA), Nantes, France
- Département d’hématologie, Centre Hospitalier Universitaire (CHU) de Nantes, Nantes, France
| | - Céline Bellanger
- Nantes Université, Inserm, CNRS, Université d’Angers, Centre de Recherche en Cancérologie et Immunologie Intégrée Nantes Angers (CRCI2NA), Nantes, France
| | - Catherine Pellat-Deceunynck
- Nantes Université, Inserm, CNRS, Université d’Angers, Centre de Recherche en Cancérologie et Immunologie Intégrée Nantes Angers (CRCI2NA), Nantes, France
- Département d’hématologie, Centre Hospitalier Universitaire (CHU) de Nantes, Nantes, France
| | - Alexis Talbot
- Département d’Immuno-hématologie, Hopital Saint-Louis, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Cyrille Touzeau
- Nantes Université, Inserm, CNRS, Université d’Angers, Centre de Recherche en Cancérologie et Immunologie Intégrée Nantes Angers (CRCI2NA), Nantes, France
- Département d’hématologie, Centre Hospitalier Universitaire (CHU) de Nantes, Nantes, France
| | - Martine Amiot
- Nantes Université, Inserm, CNRS, Université d’Angers, Centre de Recherche en Cancérologie et Immunologie Intégrée Nantes Angers (CRCI2NA), Nantes, France
| | - Patricia Gomez-Bougie
- Département d’hématologie, Centre Hospitalier Universitaire (CHU) de Nantes, Nantes, France
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6
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White MJ, Cheatham L, Wen S, Scarfe G, Cidado J, Reimer C, Hariparsad N, Jones RDO, Drew L, McGinnity DF, Vasalou C. A PKPD Case Study: Achieving Clinically Relevant Exposures of AZD5991 in Oncology Mouse Models. AAPS J 2023; 25:66. [PMID: 37380821 DOI: 10.1208/s12248-023-00836-z] [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: 03/10/2023] [Accepted: 06/13/2023] [Indexed: 06/30/2023] Open
Abstract
Capturing human equivalent drug exposures preclinically is a key challenge in the translational process. Motivated by the need to recapitulate the pharmacokinetic (PK) profile of the clinical stage Mcl-1 inhibitor AZD5991 in mice, we describe the methodology used to develop a refined mathematical model relating clinically relevant concentration profiles to efficacy. Administration routes were explored to achieve target exposures matching the clinical exposure of AZD5991. Intravenous infusion using vascular access button (VAB) technology was found to best reproduce clinical target exposures of AZD5991 in mice. Exposure-efficacy relationships were evaluated, demonstrating that dissimilar PK profiles result in differences in target engagement and efficacy outcomes. Thus, these data underscore the importance of accurately ascribing key PK metrics in the translational process to enable clinically meaningful predictions of efficacy.
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Affiliation(s)
- Michael J White
- AstraZeneca Research and Development Boston: AstraZeneca R&D Boston, Waltham, Massachusetts, USA.
| | - Letitia Cheatham
- AstraZeneca Research and Development Boston: AstraZeneca R&D Boston, Waltham, Massachusetts, USA
| | - Shenghua Wen
- AstraZeneca Research and Development Boston: AstraZeneca R&D Boston, Waltham, Massachusetts, USA
| | - Graeme Scarfe
- AstraZeneca Research and Development Boston: AstraZeneca R&D Boston, Waltham, Massachusetts, USA
| | - Justin Cidado
- AstraZeneca Research and Development Boston: AstraZeneca R&D Boston, Waltham, Massachusetts, USA
| | - Corinne Reimer
- AstraZeneca Research and Development Boston: AstraZeneca R&D Boston, Waltham, Massachusetts, USA
| | - Niresh Hariparsad
- AstraZeneca Research and Development Boston: AstraZeneca R&D Boston, Waltham, Massachusetts, USA
| | - Rhys D O Jones
- AstraZeneca Research and Development Boston: AstraZeneca R&D Boston, Waltham, Massachusetts, USA
| | - Lisa Drew
- AstraZeneca Research and Development Boston: AstraZeneca R&D Boston, Waltham, Massachusetts, USA
| | - Dermot F McGinnity
- AstraZeneca Research and Development Boston: AstraZeneca R&D Boston, Waltham, Massachusetts, USA
| | - Christina Vasalou
- AstraZeneca Research and Development Boston: AstraZeneca R&D Boston, Waltham, Massachusetts, USA
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7
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Dutta RP, Kumar R, Tembhare PR, Bagal B, Swain RK, Hasan SK. Targeting transcriptional kinase of CDK7 halts proliferation of multiple myeloma cells by modulating the function of canonical NF-kB pathway and cell cycle regulatory proteins. Transl Oncol 2023; 35:101729. [PMID: 37369156 DOI: 10.1016/j.tranon.2023.101729] [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: 03/20/2023] [Revised: 06/17/2023] [Accepted: 06/20/2023] [Indexed: 06/29/2023] Open
Abstract
Multiple myeloma (MM) is an incurable plasma cell neoplasm. Despite several effective frontline therapeutic regimens, including Bortezomib (BTZ), relapse is almost inevitable; therefore, better therapeutic modalities to improve the outcomes are needed. Cyclin-dependent kinases (CDKs) are an essential constituent of the cellular transcriptional machinery and tumors including MM are critically dependent on transcription to maintain their oncogenic state. In the present study, we explored the efficacy of THZ1, a covalent CDK7 inhibitor in MM treatment using Bortezomib resistant (H929BTZR) cells and zebrafish xenografts. THZ1 showed anti-myeloma activity in the models of MM but had no effect on healthy CD34+ cells. THZ1 suppresses phosphorylation of carboxy-terminal domain of RNA polymerase II and downregulates the transcription of BCL2 family of proteins both in H929BTZS and H929BTZR cells leading to G1/S arrest and apoptosis. THZ1 mediates inhibition of bone marrow stromal cells-induced proliferation and activation of NF-kB signaling. The data derived from zebrafish xenografts of MM demonstrate that THZ1 combined with BTZ synergistically reduces tumor growth in zebrafish embryos. Collectively, our results reveal that THZ1 alone as well as in combination with BTZ has effective anti-myeloma activity.
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Affiliation(s)
- Rudra Prasad Dutta
- Hasan Lab, ACTREC-Tata Memorial Centre, Mumbai, India; Hematology and Medical Oncology, Mount Sinai School of Medicine, New York, NY, USA
| | - Rohit Kumar
- Hasan Lab, ACTREC-Tata Memorial Centre, Mumbai, India; Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | | | - Bhausaheb Bagal
- Adult Hematolymphoid Disease Management Group, Department of Medical Oncology, Tata Memorial Centre, Mumbai, India
| | - Rajeeb Kumar Swain
- Developmental Biology, Institute of Life Sciences, Bhubaneswar, Bhubaneswar, India
| | - Syed Khizer Hasan
- Hasan Lab, ACTREC-Tata Memorial Centre, Mumbai, India; Homi Bhabha National Institute, Mumbai, India.
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8
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Tagoug A, Safra I. The Impact of Panobinostat on Cell Death in Combination with S63845 in Multiple Myeloma Cells. Indian J Hematol Blood Transfus 2023; 39:245-257. [PMID: 37006981 PMCID: PMC10064410 DOI: 10.1007/s12288-022-01584-4] [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: 06/27/2022] [Accepted: 09/13/2022] [Indexed: 01/03/2023] Open
Abstract
Multiple myeloma is a B cell neoplasm characterized by bone marrow infiltration with malignant plasma cells. The Overexpression of histone deacetylase prevents apoptosis of myeloma cells by different mechanisms. The combination of Panobinostat with a BH3 mimetic, S63845, has demonstrated significant antitumor activity in multiple myeloma. We examined the impact of Panobinostat combined with MCL-1 inhibitor on multiple myeloma cell lines in vivo and in vitro as well as on fresh human myeloma cells. Our study shows that MCL-1 remains a major resistant factor to cell death induced by Panobinostat. Therefore, the inhibition of the MCL-1 member is considered a therapeutic strategy to kill the myeloma cells. We examined that the MCL-1 inhibitor (S63845) enhanced the cytotoxic effect of Panobinostat and decreased the viability of human cell lines and primary myeloma patient cells. Mechanistically, Panobinostat/S63845 control cell death via an intrinsic pathway. Given these data, the combination can be a promising therapeutic target for myeloma patients and should be further explored in clinical trials.
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Affiliation(s)
- Arwa Tagoug
- Laboratory of Molecular and Cellular Hematology, LR6IPT07, Pasteur Institute of Tunis, 13 Place Pasteur BP 74, 1002 Tunis Belvedere, Tunisia
- University of Tunis El Manar, Tunis, Tunisia
| | - Ines Safra
- Laboratory of Molecular and Cellular Hematology, LR6IPT07, Pasteur Institute of Tunis, 13 Place Pasteur BP 74, 1002 Tunis Belvedere, Tunisia
- University of Tunis El Manar, Tunis, Tunisia
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9
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Ailawadhi S, Parrondo RD, Dutta N, Han B, Ciccio G, Cherukuri Y, Alegria VR, LaPlant BR, Roy V, Sher T, Edwards B, Lanier S, Manna A, Heslop K, Caulfield T, Maldosevic E, Storz P, Manochakian R, Asmann Y, Chanan-Khan AA, Paulus A. AT-101 Enhances the Antitumor Activity of Lenalidomide in Patients with Multiple Myeloma. Cancers (Basel) 2023; 15:477. [PMID: 36672426 PMCID: PMC9857228 DOI: 10.3390/cancers15020477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/03/2022] [Accepted: 12/09/2022] [Indexed: 01/15/2023] Open
Abstract
Bcl-2 and Mcl-1 proteins play a role in multiple myeloma (MM) cell survival, for which targeted inhibitors are being developed. AT-101 is an oral drug, which disrupts Bcl-2 and Mcl-1 function, impedes mitochondrial bioenergetic processes and induces apoptosis in MM cells. When combined with lenalidomide and dexamethasone (Rd), AT-101 significantly reduced tumor burden in an in vivo xenograft model of MM. These data provided rationale for a phase I/II study to establish the effective dose of AT-101 in combination with Rd (ARd regimen) in relapsed/refractory MM. A total of 10 patients were enrolled, most with high-risk cytogenetics (80%) and prior stem cell transplant (70%). Three patients were lenalidomide-refractory, 2 were bortezomib-refractory and 3 were daratumumab-refractory. The ARd combination was well tolerated with most common grade 3/4 adverse events being cytopenia's. The overall response rate was 40% and clinical benefit rate was 90%. The median progression free survival was 14.9 months (95% CI 7.1-NE). Patients responsive to ARd showed a decrease in Bcl-2:Bim or Mcl-1:Noxa protein complexes, increased CD8+ T and NK cells and depletion of T and B-regulatory cells. The ARd regimen demonstrated an acceptable safety profile and promising efficacy in patients with relapsed/refractory MM prompting further investigation in additional patients.
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Affiliation(s)
- Sikander Ailawadhi
- Deparment of Hematology-Oncology, Mayo Clinic Florida, 4500 San Pablo Road S, Jacksonville, FL 32224, USA
- Department of Cancer Biology, Mayo Clinic, 4500 San Pablo Road S, Jacksonville, FL 32224, USA
| | - Ricardo D. Parrondo
- Deparment of Hematology-Oncology, Mayo Clinic Florida, 4500 San Pablo Road S, Jacksonville, FL 32224, USA
| | - Navnita Dutta
- Department of Cancer Biology, Mayo Clinic, 4500 San Pablo Road S, Jacksonville, FL 32224, USA
| | - Bing Han
- Department of Cancer Biology, Mayo Clinic, 4500 San Pablo Road S, Jacksonville, FL 32224, USA
| | - Gina Ciccio
- Department of Cancer Biology, Mayo Clinic, 4500 San Pablo Road S, Jacksonville, FL 32224, USA
| | - Yesesri Cherukuri
- Department of Health Sciences Research, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Victoria R. Alegria
- Deparment of Hematology-Oncology, Mayo Clinic Florida, 4500 San Pablo Road S, Jacksonville, FL 32224, USA
| | - Betsy R. LaPlant
- Department of Biostatistics, Mayo Clinic Rochester, Rochester, MN 55902, USA
| | - Vivek Roy
- Deparment of Hematology-Oncology, Mayo Clinic Florida, 4500 San Pablo Road S, Jacksonville, FL 32224, USA
| | - Taimur Sher
- Deparment of Hematology-Oncology, Mayo Clinic Florida, 4500 San Pablo Road S, Jacksonville, FL 32224, USA
| | - Brett Edwards
- Deparment of Hematology-Oncology, Mayo Clinic Florida, 4500 San Pablo Road S, Jacksonville, FL 32224, USA
| | - Stephanie Lanier
- Deparment of Hematology-Oncology, Mayo Clinic Florida, 4500 San Pablo Road S, Jacksonville, FL 32224, USA
| | - Alak Manna
- Department of Cancer Biology, Mayo Clinic, 4500 San Pablo Road S, Jacksonville, FL 32224, USA
| | - Keisha Heslop
- Deparment of Hematology-Oncology, Mayo Clinic Florida, 4500 San Pablo Road S, Jacksonville, FL 32224, USA
| | - Thomas Caulfield
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Emir Maldosevic
- Department of Cancer Biology, Mayo Clinic, 4500 San Pablo Road S, Jacksonville, FL 32224, USA
| | - Peter Storz
- Department of Cancer Biology, Mayo Clinic, 4500 San Pablo Road S, Jacksonville, FL 32224, USA
| | - Rami Manochakian
- Deparment of Hematology-Oncology, Mayo Clinic Florida, 4500 San Pablo Road S, Jacksonville, FL 32224, USA
| | - Yan Asmann
- Department of Health Sciences Research, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Asher A. Chanan-Khan
- Deparment of Hematology-Oncology, Mayo Clinic Florida, 4500 San Pablo Road S, Jacksonville, FL 32224, USA
- Department of Cancer Biology, Mayo Clinic, 4500 San Pablo Road S, Jacksonville, FL 32224, USA
| | - Aneel Paulus
- Deparment of Hematology-Oncology, Mayo Clinic Florida, 4500 San Pablo Road S, Jacksonville, FL 32224, USA
- Department of Cancer Biology, Mayo Clinic, 4500 San Pablo Road S, Jacksonville, FL 32224, USA
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Aksoy O, Lind J, Sunder-Plaßmann V, Vallet S, Podar K. Bone marrow microenvironment- induced regulation of Bcl-2 family members in multiple myeloma (MM): Therapeutic implications. Cytokine 2023; 161:156062. [PMID: 36332463 DOI: 10.1016/j.cyto.2022.156062] [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: 06/01/2022] [Revised: 09/19/2022] [Accepted: 09/30/2022] [Indexed: 11/23/2022]
Abstract
In Multiple Myeloma (MM) the finely tuned homeostasis of the bone marrow (BM) microenvironment is disrupted. Evasion of programmed cell death (apoptosis) represents a hallmark of cancer. Besides genetic aberrations, the supportive and protective MM BM milieu, which is constituted by cytokines and growth factors, intercellular and cell: extracellular matrix (ECM) interactions and exosomes, in particular, plays a key role in the abundance of pro-survival members of the Bcl-2 family (i.e., Mcl-1, Bcl-2, and Bcl-xL) in tumor cells. Moreover, microenvironmental cues have also an impact on stability- regulating post-translational modifications of anti-apoptotic proteins including de/phosphorylation, polyubiquitination; on their intracellular binding affinities, and localization. Advances of our molecular knowledge on the escape of cancer cells from apoptosis have informed the development of a new class of small molecules that mimic the action of BH3-only proteins. Indeed, approaches to directly target anti-apoptotic Bcl-2 family members are among today's most promising therapeutic strategies and BH3-mimetics (i.e., venetoclax) are currently revolutionizing not only the treatment of CLL and AML, but also hold great therapeutic promise in MM. Furthermore, approaches that activate apoptotic pathways indirectly via modification of the tumor microenvironment have already entered clinical practice. The present review article will summarize our up-to-date knowledge on molecular mechanisms by which the MM BM microenvironment, cytokines, and growth factors in particular, mediates tumor cell evasion from apoptosis. Moreover, it will discuss some of the most promising science- derived therapeutic strategies to overcome Bcl-2- mediated tumor cell survival in order to further improve MM patient outcome.
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Affiliation(s)
- Osman Aksoy
- Molecular Oncology and Hematology Unit, Karl Landsteiner University of Health Sciences, Dr. Karl-Dorrek-Straße 30, 3500 Krems an der Donau, Austria
| | - Judith Lind
- Molecular Oncology and Hematology Unit, Karl Landsteiner University of Health Sciences, Dr. Karl-Dorrek-Straße 30, 3500 Krems an der Donau, Austria
| | - Vincent Sunder-Plaßmann
- Molecular Oncology and Hematology Unit, Karl Landsteiner University of Health Sciences, Dr. Karl-Dorrek-Straße 30, 3500 Krems an der Donau, Austria
| | - Sonia Vallet
- Molecular Oncology and Hematology Unit, Karl Landsteiner University of Health Sciences, Dr. Karl-Dorrek-Straße 30, 3500 Krems an der Donau, Austria; Department of Internal Medicine 2, University Hospital Krems, Mitterweg 10, 3500 Krems an der Donau, Austria
| | - Klaus Podar
- Molecular Oncology and Hematology Unit, Karl Landsteiner University of Health Sciences, Dr. Karl-Dorrek-Straße 30, 3500 Krems an der Donau, Austria; Department of Internal Medicine 2, University Hospital Krems, Mitterweg 10, 3500 Krems an der Donau, Austria.
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Jegatheeson S, Cannon C, Mansfield C, Devlin J, Roberts A. Sensitivity of canine hematological cancers to BH3 mimetics. J Vet Intern Med 2022; 37:236-246. [PMID: 36433867 PMCID: PMC9889650 DOI: 10.1111/jvim.16587] [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: 01/14/2022] [Accepted: 11/08/2022] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Inhibition of antiapoptotic B-cell lymphoma 2 (BCL2) proteins by small molecule Bcl-2 homology 3 (BH3) mimetics causes rapid induction of apoptosis of human hematological cancers in vitro and in vivo. OBJECTIVES Assess in vitro sensitivity of non-neoplastic lymphocytes and primary hematological cancer cells from dogs to venetoclax (VEN) or the dual BCL2/ B-cell lymphoma-extra-large (BCLxL) inhibitor, navitoclax (NAV), and evaluate the association between BCL2 protein expression and VEN sensitivity. ANIMALS Nine client-owned dogs without cancer and 18 client-owned dogs with hematological cancer. METHODS Prospective, nonrandomized noncontrolled study. Lymphocytes isolated from peripheral blood, lymph node, or bone marrow from dogs were incubated with BH3 mimetics for 24 hours. Viable cells were counted using flow cytometry and half maximal effective concentration (EC50 ) was calculated. BCL2 protein from whole cell lysates was assessed via immunoblots. RESULTS Nodal B and T lymphocytes were more sensitive to VEN than circulating lymphocytes (P = .02). Neoplastic T lymphocytes were sensitive to VEN (mean EC50 ± SD = 0.023 ± 0.018 μM), whereas most non-indolent B cell cancers were resistant to killing by VEN (mean EC50 ± SD = 288 ± 700 μM). Unclassified leukemias showed variable sensitivity to VEN (mean EC50 ± SD = 0.49 ± 0.66 μM). Detection of BCL2 protein was not associated with VEN sensitivity. CONCLUSION AND CLINICAL IMPORTANCE Neoplastic canine T lymphocytes are sensitive to VEN in vitro. Quantification of BCL2 protein alone is insufficient to predict sensitivity to VEN.
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Affiliation(s)
- Selvi Jegatheeson
- Faculty of Veterinary and Agricultural SciencesThe University of MelbourneWerribeeVictoriaAustralia,Blood Cells and Blood Cancer DivisionThe Walter and Eliza Hall Institute of Medical ResearchParkvilleVictoriaAustralia
| | - Claire Cannon
- Faculty of Veterinary and Agricultural SciencesThe University of MelbourneWerribeeVictoriaAustralia,Present address:
Veterinary Referral HospitalDandenongVictoriaAustralia
| | - Caroline Mansfield
- Faculty of Veterinary and Agricultural SciencesThe University of MelbourneWerribeeVictoriaAustralia
| | - Joanne Devlin
- Faculty of Veterinary and Agricultural SciencesThe University of MelbourneWerribeeVictoriaAustralia
| | - Andrew Roberts
- Blood Cells and Blood Cancer DivisionThe Walter and Eliza Hall Institute of Medical ResearchParkvilleVictoriaAustralia
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Doroshenko A, Tomkova S, Kozar T, Stroffekova K. Hypericin, a potential new BH3 mimetic. Front Pharmacol 2022; 13:991554. [PMID: 36267274 PMCID: PMC9577225 DOI: 10.3389/fphar.2022.991554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 08/30/2022] [Indexed: 11/13/2022] Open
Abstract
Many types of cancer such as prostate cancer, myeloid leukemia, breast cancer, glioblastoma display strong chemo resistance, which is supported by enhanced expression of multiple anti-apoptotic Bcl-2, Bcl-XL and Mcl-1 proteins. The viable anti-cancer strategies are based on developing anti-apoptotic Bcl-2 proteins inhibitors, BH3 mimetics. Our focus in past years has been on the investigating a new potential BH3 mimetic, Hypericin (Hyp). Hyp is a naturally occurring photosensitive compound used in photodynamic therapy and diagnosis. We have demonstrated that Hyp can cause substantial effects in cellular ultrastructure, mitochondria function and metabolism, and distribution of Bcl2 proteins in malignant and non-malignant cells. One of the possible mechanisms of Hyp action could be the direct interactions between Bcl-2 proteins and Hyp. We investigated this assumption by in silico computer modelling and in vitro fluorescent spectroscopy experiments with the small Bcl2 peptide segments designed to correspond to Bcl2 BH3 and BH1 domains. We show here that Hyp interacts with BH3 and BH1 peptides in concentration dependent manner, and shows the stronger interactions than known BH3 mimetics, Gossypol (Goss) and ABT-263. In addition, interactions of Hyp, Goss and ABT263, with whole purified proteins Bcl-2 and Mcl-1 by fluorescence spectroscopy show that Hyp interacts stronger with the Bcl-2 and less with Mcl-1 protein than Goss or ABT-263. This suggest that Hyp is comparable to other BH3 mimetics and could be explore as such. Hyp cytotoxicity was low in human U87 MG glioma, similar to that of ABT263, where Goss exerted sufficient cytotoxicity, suggesting that Hyp acts primarily on Bcl-2, but not on Mcl-1 protein. In combination therapy, low doses of Hyp with Goss effectively decreased U87 MG viability, suggesting a possible synergy effect. Overall, we can conclude that Hyp as BH3 mimetic acts primarily on Bcl-2 protein and can be explored to target cells with Bcl-2 over-expression, or in combination with other BH3 mimetics, that target Mcl-1 or Bcl-XL proteins, in dual therapy.
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Affiliation(s)
- Anastasia Doroshenko
- Department of Biophysics, Faculty of Natural Sciences, PJ Safarik University, Kosice, Slovakia
| | - Silvia Tomkova
- Department of Biophysics, Faculty of Natural Sciences, PJ Safarik University, Kosice, Slovakia
| | - Tibor Kozar
- Center of Interdisciplinary Biosciences, TIP-Safarik University, Kosice, Slovakia
| | - Katarina Stroffekova
- Department of Biophysics, Faculty of Natural Sciences, PJ Safarik University, Kosice, Slovakia
- *Correspondence: Katarina Stroffekova,
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13
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Kansız S, Azam M, Basılı T, Meral S, Aktaş FA, Yeşilbağ S, Min K, Ağar AA, Dege N. Synthesis, structural studies, Hirshfeld surface analysis, and molecular docking studies of a thiophene-based Schiff base compound. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Pal P, Zhang P, Poddar SK, Zheng G. Patent landscape of inhibitors and PROTACs of the anti-apoptotic BCL-2 family proteins. Expert Opin Ther Pat 2022; 32:1003-1026. [PMID: 35993382 PMCID: PMC9942934 DOI: 10.1080/13543776.2022.2116311] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 08/19/2022] [Indexed: 11/04/2022]
Abstract
INTRODUCTION The anti-apoptotic BCL-2 family proteins, such as BCL-2, BCL-XL, and MCL-1, are excellent cancer therapeutic targets. The FDA approval of BCL-2 selective inhibitor venetoclax in 2016 validated the strategy of targeting these proteins with BH3 mimetic small molecule inhibitors. AREAS COVERED This review provides an overview of the patent literature between 2016 and 2021 covering inhibitors and PROTACs of the anti-apoptotic BCL-2 proteins. EXPERT OPINION Since the FDA approval of venetoclax, tremendous efforts have been made to develop its analogues with improved drug properties. These activities will likely result in new drugs in coming years. Significant progress on MCL-1 inhibitors has also been made, with multiple compounds entering clinical trials. However, MCL-1 inhibition could cause on-target toxicity to normal tissues especially the heart. Similar issue exists with BCL-XL inhibitors, which cause on-target platelet toxicity. To overcome this issue, several strategies have been applied, including prodrug, dendrimer-based drug delivery, antibody-drug conjugate (ADC), and proteolysis targeting chimera (PROTAC); and amazingly, each of these approaches has resulted in a drug candidate entering clinical trials. We envision technologies like ADC and PROTAC could also be utilized to increase the therapeutic index of MCL-1 inhibitors.
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Affiliation(s)
- Pratik Pal
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Peiyi Zhang
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Saikat K Poddar
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL, USA
| | - Guangrong Zheng
- Department of Medicinal Chemistry, College of Pharmacy, University of Florida, Gainesville, FL, USA
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Sulkshane P, Teni T. Myeloid cell leukemia-1: a formidable barrier to anticancer therapeutics and the quest of targeting it. EXPLORATION OF TARGETED ANTI-TUMOR THERAPY 2022; 3:278-296. [PMID: 36045907 PMCID: PMC9400788 DOI: 10.37349/etat.2022.00083] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 03/16/2022] [Indexed: 11/22/2022] Open
Abstract
The antiapoptotic B cell lymphoma-2 (Bcl-2) family members are apical regulators of the intrinsic pathway of apoptosis that orchestrate mitochondrial outer membrane permeabilization (MOMP) through interactions with their proapoptotic counterparts. Overexpression of antiapoptotic Bcl-2 family proteins has been linked to therapy resistance and poor prognosis in diverse cancers. Among the antiapoptotic Bcl-2 family members, predominant overexpression of the prosurvival myeloid cell leukemia-1 (Mcl-1) has been reported in a myriad of hematological malignancies and solid tumors, contributing to therapy resistance and poor outcomes, thus making it a potential druggable target. The unique structure of Mcl-1 and its complex regulatory mechanism makes it an adaptive prosurvival switch that ensures tumor cell survival despite therapeutic intervention. This review focusses on diverse mechanisms adopted by tumor cells to maintain sustained elevated levels of Mcl-1 and how high Mcl-1 levels contribute to resistance in conventional as well as targeted therapies. Moreover, recent developments in the Mcl-1-targeted therapeutics and the underlying challenges and considerations in designing novel Mcl-1 inhibitors are also discussed.
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Affiliation(s)
- Prasad Sulkshane
- Glickman Laboratory, Faculty of Biology, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Tanuja Teni
- Teni Laboratory, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre, Kharghar, Navi Mumbai 410210, India; Homi Bhabha National Institute, Training School Complex, Mumbai 400094, India
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Luo S, Su T, Zhou X, Hu WX, Hu J. Chromosome 1 instability in multiple myeloma: Aberrant gene expression, pathogenesis, and potential therapeutic target. FASEB J 2022; 36:e22341. [PMID: 35579877 DOI: 10.1096/fj.202200354] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 04/25/2022] [Indexed: 11/11/2022]
Abstract
Multiple myeloma (MM), the terminally differentiated B cells malignancy, is widely considered to be incurable since many patients have either developed drug resistance or experienced an eventual relapse. To develop precise and efficient therapeutic strategies, we must understand the pathogenesis of MM. Thus, unveiling the driver events of MM and its further clonal evolution will help us understand this complicated disease. Chromosome 1 instabilities are the most common genomic alterations that participate in MM pathogenesis, and these aberrations of chromosome 1 mainly include copy number variations and structural changes. The chromosome 1q gains/amplifications and 1p deletions are the most frequent structural changes of chromosomes in MM. In this review, we intend to focus on the genes that are affected by chromosome 1 instability: some tumor suppressors were lost or down regulated in 1p deletions, and others that contributed to tumorigenesis were upregulated in 1q gains/amplifications. We have summarized their biological function as well as their roles in the MM pathogenesis, hoping to uncover potential novel therapeutical targets and promote the development of future therapeutic approaches.
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Affiliation(s)
- Saiqun Luo
- Molecular Biology Research Center, School of Life Sciences, Central South University, Changsha, China
| | - Tao Su
- Department of Hematology, Xiangya Hospital, Central South University, Changsha, China
| | - Xiang Zhou
- Molecular Biology Research Center, School of Life Sciences, Central South University, Changsha, China
| | - Wei-Xin Hu
- Molecular Biology Research Center, School of Life Sciences, Central South University, Changsha, China
| | - Jingping Hu
- Molecular Biology Research Center, School of Life Sciences, Central South University, Changsha, China
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Combination of Histone Deacetylase Inhibitor Panobinostat (LBH589) with β-Catenin Inhibitor Tegavivint (BC2059) Exerts Significant Anti-Myeloma Activity Both In Vitro and In Vivo. Cancers (Basel) 2022; 14:cancers14030840. [PMID: 35159107 PMCID: PMC8834319 DOI: 10.3390/cancers14030840] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 01/31/2022] [Accepted: 02/04/2022] [Indexed: 02/06/2023] Open
Abstract
Over the last three decades changes in the treatment paradigm for newly diagnosed multiple myeloma (MM) have led to a significant increase in overall survival. Despite this, the majority of patients relapse after one or more lines of treatment while acquiring resistance to available therapies. Panobinostat, a pan-histone deacetylase inhibitor, was approved by the FDA in 2015 for patients with relapsed MM but how to incorporate panobinostat most effectively into everyday practice remains unclear. Dysregulation of the Wnt canonical pathway, and its key mediator β-catenin, has been shown to be important for the evolution of MM and the acquisition of drug resistance, making it a potentially attractive therapeutic target. Despite concerns regarding the safety of Wnt pathway inhibitors, we have recently shown that the β-catenin inhibitor Tegavivint is deliverable and effective in in vivo models of MM. In this study we show that the combination of low concentrations of panobinostat and Tegavivint have significant in vitro and in vivo anti-MM effects including in the context of proteasome inhibitor resistance, by targeting both aerobic glycolysis and mitochondrial respiration and the down-regulation of down-stream β-catenin targets including myc, cyclinD1, and cyclinD2. The significant anti-MM effect of this novel combination warrants further evaluation for the treatment of MM patients with relapsed and/or refractory MM.
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Abstract
Multiple myeloma is a common hematological malignancy of plasma cells, the terminally differentiated B cells that secrete antibodies as part of the adaptive immune response. Significant progress has been made in treating multiple myeloma, but this disease remains largely incurable, and most patients will eventually suffer a relapse of disease that becomes refractory to further therapies. Moreover, a portion of patients with multiple myeloma present with disease that is refractory to all treatments from the initial diagnosis, and no current therapeutic approaches can help. Therefore, the task remains to advance new therapeutic strategies to help these vulnerable patients. One strategy to meet this challenge is to unravel the complex web of pathogenic signaling pathways in malignant plasma cells and use this information to design novel precision medicine strategies to assist these patients most at risk.
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Affiliation(s)
- Arnold Bolomsky
- Wilhelminen Cancer Research Institute, Dept. of Medicine I, Wilhelminenspital, Vienna Austria
| | - Ryan M. Young
- National Institutes of Health, National Cancer Institute, Center for Cancer Research, Lymphoid Malignancies Branch, Bethesda MD 20892,Lymphoid Malignancies Branch, Center for Cancer Research, National Institutes of Health, 9000 Rockville Pike, Bethesda, MD. 20892, , 240-858-3513
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Machine Learning and Deep Learning Applications in Multiple Myeloma Diagnosis, Prognosis, and Treatment Selection. Cancers (Basel) 2022; 14:cancers14030606. [PMID: 35158874 PMCID: PMC8833500 DOI: 10.3390/cancers14030606] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/20/2022] [Accepted: 01/24/2022] [Indexed: 02/01/2023] Open
Abstract
Simple Summary Multiple myeloma is a malignant neoplasm of plasma cells with complex pathogenesis. With major progresses in multiple myeloma research, it is essential that we reconsider our methods for diagnosing and monitoring multiple myeloma disease. This fact needs the integration of serology, histology, radiology, and genetic data; therefore, multiple myeloma study has generated massive quantities of granular high-dimensional data exceeding human understanding. With improved computational techniques, artificial intelligence tools for data processing and analysis are becoming more and more relevant. Artificial intelligence represents a wide set of algorithms for which machine learning and deep learning are presently among the most impactful. This review focuses on artificial intelligence applications in multiple myeloma research, first illustrating machine learning and deep learning procedures and workflow, followed by how these algorithms are used for multiple myeloma diagnosis, prognosis, bone lesions identification, and evaluation of response to the treatment. Abstract Artificial intelligence has recently modified the panorama of oncology investigation thanks to the use of machine learning algorithms and deep learning strategies. Machine learning is a branch of artificial intelligence that involves algorithms that analyse information, learn from that information, and then employ their discoveries to make abreast choice, while deep learning is a field of machine learning basically represented by algorithms inspired by the organization and function of the brain, named artificial neural networks. In this review, we examine the possibility of the artificial intelligence applications in multiple myeloma evaluation, and we report the most significant experimentations with respect to the machine and deep learning procedures in the relevant field. Multiple myeloma is one of the most common haematological malignancies in the world, and among them, it is one of the most difficult ones to cure due to the high occurrence of relapse and chemoresistance. Machine learning- and deep learning-based studies are expected to be among the future strategies to challenge this negative-prognosis tumour via the detection of new markers for their prompt discovery and therapy selection and by a better evaluation of its relapse and survival.
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20
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Inhibition of MCL1 induces apoptosis in anaplastic large cell lymphoma and in primary effusion lymphoma. Sci Rep 2022; 12:1085. [PMID: 35058488 PMCID: PMC8776734 DOI: 10.1038/s41598-022-04916-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 12/17/2021] [Indexed: 12/12/2022] Open
Abstract
AbstractOverexpression of antiapoptotic BCL2 family proteins occurs in various hematologic malignancies and contributes to tumorigenesis by inhibiting the apoptotic machinery of the cells. Antagonizing BH3 mimetics provide an option for medication, with venetoclax as the first drug applied for chronic lymphocytic leukemia and for acute myeloid leukemia. To find additional hematologic entities with ectopic expression of BCL2 family members, we performed expression screening of cell lines applying the LL-100 panel. Anaplastic large cell lymphoma (ALCL) and primary effusion lymphoma (PEL), 2/22 entities covered by this panel, stood out by high expression of MCL1 and low expression of BCL2. The MCL1 inhibitor AZD-5991 induced apoptosis in cell lines from both malignancies, suggesting that this BH3 mimetic might be efficient as drug for these diseases. The ALCL cell lines also expressed BCLXL and BCL2A1, both contributing to survival of the cells. The combination of specific BH3 mimetics yielded synergistic effects, pointing to a novel strategy for the treatment of ALCL. The PI3K/mTOR inhibitor BEZ-235 could also efficiently be applied in combination with AZD-5991, offering an alternative to avoid thrombocytopenia which is associated with the use of BCLXL inhibitors.
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21
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Diepstraten ST, Anderson MA, Czabotar PE, Lessene G, Strasser A, Kelly GL. The manipulation of apoptosis for cancer therapy using BH3-mimetic drugs. Nat Rev Cancer 2022; 22:45-64. [PMID: 34663943 DOI: 10.1038/s41568-021-00407-4] [Citation(s) in RCA: 116] [Impact Index Per Article: 58.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/02/2021] [Indexed: 12/14/2022]
Abstract
Apoptosis is a form of programmed cell death that is regulated by the balance between prosurvival and proapoptotic BCL-2 protein family members. Evasion of apoptosis is a hallmark of cancer that arises when this balance is tipped in favour of survival. One form of anticancer therapeutic, termed 'BH3-mimetic drugs', has been developed to directly activate the apoptosis machinery in malignant cells. These drugs bind to and inhibit specific prosurvival BCL-2 family proteins, thereby mimicking their interaction with the BH3 domains of proapoptotic BCL-2 family proteins. The BCL-2-specific inhibitor venetoclax is approved by the US Food and Drug Administration and many regulatory authorities worldwide for the treatment of chronic lymphocytic leukaemia and acute myeloid leukaemia. BH3-mimetic drugs targeting other BCL-2 prosurvival proteins have been tested in preclinical models of cancer, and drugs targeting MCL-1 or BCL-XL have advanced into phase I clinical trials for certain cancers. As with all therapeutics, efficacy and tolerability need to be carefully balanced to achieve a therapeutic window whereby there is significant anticancer activity with an acceptable safety profile. In this Review, we outline the current state of BH3-mimetic drugs targeting various prosurvival BCL-2 family proteins and discuss emerging data regarding primary and acquired resistance to these agents and approaches that may overcome this. We highlight issues that need to be addressed to further advance the clinical application of BH3-mimetic drugs, both alone and in combination with additional anticancer agents (for example, standard chemotherapeutic drugs or inhibitors of oncogenic kinases), for improved responses in patients with cancer.
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Affiliation(s)
- Sarah T Diepstraten
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, VIC, Australia
| | - Mary Ann Anderson
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, VIC, Australia
- Department of Clinical Haematology, Royal Melbourne Hospital, Melbourne, VIC, Australia
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Peter E Czabotar
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, VIC, Australia
| | - Guillaume Lessene
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, VIC, Australia
- Department of Pharmacology and Therapeutics, University of Melbourne, Melbourne, VIC, Australia
| | - Andreas Strasser
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia.
- Department of Medical Biology, University of Melbourne, Melbourne, VIC, Australia.
| | - Gemma L Kelly
- The Walter and Eliza Hall Institute of Medical Research, Melbourne, VIC, Australia.
- Department of Medical Biology, University of Melbourne, Melbourne, VIC, Australia.
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22
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Targeting the Intrinsic Apoptosis Pathway: A Window of Opportunity for Prostate Cancer. Cancers (Basel) 2021; 14:cancers14010051. [PMID: 35008216 PMCID: PMC8750516 DOI: 10.3390/cancers14010051] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/12/2021] [Accepted: 12/15/2021] [Indexed: 12/15/2022] Open
Abstract
Simple Summary Prostate cancer treatment has improved over the last 20 years; despite this, approximately 33,000 men died from the disease in the United States in 2020. In view of this, new treatment options are urgently needed for advanced prostate cancer. Eradicating cancer cells by triggering apoptosis (a form of cell death) is an attractive strategy, and a novel class of drugs, called BH3 mimetics, have been designed to do this. They have been shown to work for blood cancers and may also have a role in solid cancers. Herein, we discuss cell death, focusing on the intrinsic apoptosis pathway, and consider how BH3 mimetics may be used to help treat prostate cancer. Abstract Despite major improvements in the management of advanced prostate cancer over the last 20 years, the disease remains invariably fatal, and new effective therapies are required. The development of novel hormonal agents and taxane chemotherapy has improved outcomes, although primary and acquired resistance remains problematic. Inducing cancer cell death via apoptosis has long been an attractive goal in the treatment of cancer. Apoptosis, a form of regulated cell death, is a highly controlled process, split into two main pathways (intrinsic and extrinsic), and is stimulated by a multitude of factors, including cellular and genotoxic stress. Numerous therapeutic strategies targeting the intrinsic apoptosis pathway are in clinical development, and BH3 mimetics have shown promising efficacy for hematological malignancies. Utilizing these agents for solid malignancies has proved more challenging, though efforts are ongoing. Molecular characterization and the development of predictive biomarkers is likely to be critical for patient selection, by identifying tumors with a vulnerability in the intrinsic apoptosis pathway. This review provides an up-to-date overview of cell death and apoptosis, specifically focusing on the intrinsic pathway. It summarizes the latest approaches for targeting the intrinsic apoptosis pathway with BH3 mimetics and discusses how these strategies may be leveraged to treat prostate cancer.
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23
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Aksenova AY, Zhuk AS, Lada AG, Zotova IV, Stepchenkova EI, Kostroma II, Gritsaev SV, Pavlov YI. Genome Instability in Multiple Myeloma: Facts and Factors. Cancers (Basel) 2021; 13:5949. [PMID: 34885058 PMCID: PMC8656811 DOI: 10.3390/cancers13235949] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/20/2021] [Accepted: 11/22/2021] [Indexed: 02/06/2023] Open
Abstract
Multiple myeloma (MM) is a malignant neoplasm of terminally differentiated immunoglobulin-producing B lymphocytes called plasma cells. MM is the second most common hematologic malignancy, and it poses a heavy economic and social burden because it remains incurable and confers a profound disability to patients. Despite current progress in MM treatment, the disease invariably recurs, even after the transplantation of autologous hematopoietic stem cells (ASCT). Biological processes leading to a pathological myeloma clone and the mechanisms of further evolution of the disease are far from complete understanding. Genetically, MM is a complex disease that demonstrates a high level of heterogeneity. Myeloma genomes carry numerous genetic changes, including structural genome variations and chromosomal gains and losses, and these changes occur in combinations with point mutations affecting various cellular pathways, including genome maintenance. MM genome instability in its extreme is manifested in mutation kataegis and complex genomic rearrangements: chromothripsis, templated insertions, and chromoplexy. Chemotherapeutic agents used to treat MM add another level of complexity because many of them exacerbate genome instability. Genome abnormalities are driver events and deciphering their mechanisms will help understand the causes of MM and play a pivotal role in developing new therapies.
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Affiliation(s)
- Anna Y. Aksenova
- Laboratory of Amyloid Biology, St. Petersburg State University, 199034 St. Petersburg, Russia
| | - Anna S. Zhuk
- International Laboratory “Computer Technologies”, ITMO University, 197101 St. Petersburg, Russia;
| | - Artem G. Lada
- Department of Microbiology and Molecular Genetics, University of California, Davis, CA 95616, USA;
| | - Irina V. Zotova
- Department of Genetics and Biotechnology, St. Petersburg State University, 199034 St. Petersburg, Russia; (I.V.Z.); (E.I.S.)
- Vavilov Institute of General Genetics, St. Petersburg Branch, Russian Academy of Sciences, 199034 St. Petersburg, Russia
| | - Elena I. Stepchenkova
- Department of Genetics and Biotechnology, St. Petersburg State University, 199034 St. Petersburg, Russia; (I.V.Z.); (E.I.S.)
- Vavilov Institute of General Genetics, St. Petersburg Branch, Russian Academy of Sciences, 199034 St. Petersburg, Russia
| | - Ivan I. Kostroma
- Russian Research Institute of Hematology and Transfusiology, 191024 St. Petersburg, Russia; (I.I.K.); (S.V.G.)
| | - Sergey V. Gritsaev
- Russian Research Institute of Hematology and Transfusiology, 191024 St. Petersburg, Russia; (I.I.K.); (S.V.G.)
| | - Youri I. Pavlov
- Eppley Institute for Research in Cancer, Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Departments of Biochemistry and Molecular Biology, Microbiology and Pathology, Genetics Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE 68198, USA
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24
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Townsend PA, Kozhevnikova MV, Cexus ONF, Zamyatnin AA, Soond SM. BH3-mimetics: recent developments in cancer therapy. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2021; 40:355. [PMID: 34753495 PMCID: PMC8576916 DOI: 10.1186/s13046-021-02157-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 10/26/2021] [Indexed: 01/11/2023]
Abstract
The hopeful outcomes from 30 years of research in BH3-mimetics have indeed served a number of solid paradigms for targeting intermediates from the apoptosis pathway in a variety of diseased states. Not only have such rational approaches in drug design yielded several key therapeutics, such outputs have also offered insights into the integrated mechanistic aspects of basic and clinical research at the genetics level for the future. In no other area of medical research have the effects of such work been felt, than in cancer research, through targeting the BAX-Bcl-2 protein-protein interactions. With these promising outputs in mind, several mimetics, and their potential therapeutic applications, have also been developed for several other pathological conditions, such as cardiovascular disease and tissue fibrosis, thus highlighting the universal importance of the intrinsic arm of the apoptosis pathway and its input to general tissue homeostasis. Considering such recent developments, and in a field that has generated so much scientific interest, we take stock of how the broadening area of BH3-mimetics has developed and diversified, with a focus on their uses in single and combined cancer treatment regimens and recently explored therapeutic delivery methods that may aid the development of future therapeutics of this nature.
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Affiliation(s)
- Paul A Townsend
- University of Surrey, Guildford, UK. .,Sechenov First Moscow State Medical University, Moscow, Russian Federation. .,University of Manchester, Manchester, UK.
| | - Maria V Kozhevnikova
- University of Surrey, Guildford, UK.,Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | | | - Andrey A Zamyatnin
- University of Surrey, Guildford, UK.,Sechenov First Moscow State Medical University, Moscow, Russian Federation.,Lomonosov Moscow State University, Moscow, Russian Federation.,Sirius University of Science and Technology, Sochi, Russian Federation
| | - Surinder M Soond
- University of Surrey, Guildford, UK. .,Sechenov First Moscow State Medical University, Moscow, Russian Federation.
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25
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Heterogeneous modulation of Bcl-2 family members and drug efflux mediate MCL-1 inhibitor resistance in multiple myeloma. Blood Adv 2021; 5:4125-4139. [PMID: 34478517 PMCID: PMC8945627 DOI: 10.1182/bloodadvances.2020003826] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 05/07/2021] [Indexed: 01/19/2023] Open
Abstract
Antiapoptotic Bcl-2 family members have recently (re)emerged as key drug targets in cancer, with a tissue- and tumor-specific activity profile of available BH3 mimetics. In multiple myeloma, MCL-1 has been described as a major gatekeeper of apoptosis. This discovery has led to the rapid establishment of clinical trials evaluating the impact of various MCL-1 inhibitors. However, our understanding about the clinical impact and optimal use of MCL-1 inhibitors is still limited. We therefore explored mechanisms of acquired MCL-1 inhibitor resistance and optimization strategies in myeloma. Our findings indicated heterogeneous paths to resistance involving baseline Bcl-2 family alterations of proapoptotic (BAK, BAX, and BIM) and antiapoptotic (Bcl-2 and MCL-1) proteins. These manifestations depend on the BH3 profile of parental cells that guide the enhanced formation of Bcl-2:BIM and/or the dynamic (ie, treatment-induced) formation of Bcl-xL:BIM and Bcl-xL:BAK complexes. Accordingly, an unbiased high-throughput drug-screening approach (n = 528) indicated alternative BH3 mimetics as top combination partners for MCL-1 inhibitors in sensitive and resistant cells (Bcl-xL>Bcl-2 inhibition), whereas established drug classes were mainly antagonistic (eg, antimitotic agents). We also revealed reduced activity of MCL-1 inhibitors in the presence of stromal support as a drug-class effect that was overcome by concurrent Bcl-xL or Bcl-2 inhibition. Finally, we demonstrated heterogeneous Bcl-2 family deregulation and MCL-1 inhibitor cross-resistance in carfilzomib-resistant cells, a phenomenon linked to the MDR1-driven drug efflux of MCL-1 inhibitors. The implications of our findings for clinical practice emphasize the need for patient-adapted treatment protocols, with the tracking of tumor- and/or clone-specific adaptations in response to MCL-1 inhibition.
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26
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Yuan D, Zhu Y. Knockdown of LINC01224 Suppresses Colon Cancer Progression by Sponging miR-485-5p to Downregulate MCL1. Cancer Manag Res 2021; 13:7803-7812. [PMID: 34675675 PMCID: PMC8520417 DOI: 10.2147/cmar.s289024] [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: 11/02/2020] [Accepted: 12/13/2020] [Indexed: 11/25/2022] Open
Abstract
Background Colon cancer (CC) is the most commonly occurring malignant tumor in the world. The current cancer treatment options have been less effective especially in the advanced stages of CC and patients have poor overall survival. Hence, there is an urgent need to explore novel molecular therapeutic targets for CC treatment. Methods qRT-PCR was performed to detect the levels of lncRNA LINC01224 (LINC01224), microRNA-485-5p (miR-485-5p), MCL1 in CC tumor tissues or cell lines. Two si-RNAs against LINC01224 were used to silence the level of LINC01224, and CCK-8 assay, colony formation assay, and transwell assay were performed to explore the role of LINC01224 on the proliferation, migration, and invasion of CC cell lines. Kaplan–Meier method was applied for evaluating the association between LINC01224 level and the overall survival of CC patients. Through bioinformatics analysis, we found that LINC01224 sponged miR-485-5p and consequently targeted MCL1. Dual-luciferase reporter assay, RNA pull-down assay, qRT-PCR, and Western blot assay were conducted for verification of the interactions among LINC01224, miR-485-5p, and MCL1. Furthermore, the role of LINC01224/miR-485-5p/MCL1 axis in CC progression was investigated by CCK-8 assay, colony formation assay, and transwell assay. Results LINC01224 was highly expressed in CC tumor tissues and CC cell lines, and its expression was associated with the overall survival of CC patients. The LINC01224-siRNAs (si-LINC01224) markedly suppressed the level of LINC01224 in CC cell lines (HT29 and SW480 cells) and consequently significantly suppressed the proliferation, migration, and invasion of the HT29 and SW480 cells. LINC01224 was verified to sponge miR-485-5p and consequently targeted MCL1. MiR-485-5p inhibitor or MCL1 overexpression (MCL1 OE) markedly restored the repressive effect of the si-LINC01224 pool on MCL1 expression level, as well as proliferation, migration, and invasion of HT29 and SW480 cells. Conclusion This study identified LINC01224/miR-485-5p/MCL1 axis as a novel molecular therapeutic target involved in CC progression.
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Affiliation(s)
- Danping Yuan
- Department of Colorectal Surgery, Ningbo First Hospital, Ningbo, 315010, Zhejiang, People's Republic of China
| | - Yanan Zhu
- Department of Emergency, Taizhou Hospital of Zhejiang Province, Linhai, 317000, Zhejiang, People's Republic of China
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27
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Sgherza N, Curci P, Rizzi R, Musto P. Novel Approaches Outside the Setting of Immunotherapy for the Treatment of Multiple Myeloma: The Case of Melflufen, Venetoclax, and Selinexor. Front Oncol 2021; 11:716751. [PMID: 34660279 PMCID: PMC8514936 DOI: 10.3389/fonc.2021.716751] [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: 05/29/2021] [Accepted: 08/18/2021] [Indexed: 11/13/2022] Open
Abstract
Although the survival rate of patients with multiple myeloma has significantly improved in the last years thanks to the introduction of various classes of new drugs, such as proteasome inhibitors, immunomodulatory agents, and monoclonal antibodies, the vast majority of these subjects relapse with a more aggressive disease due to the acquisition of further genetic alterations that may cause resistance to current salvage therapies. The treatment of these often "triple" (or even more) refractory patients remains challenging, and alternative approaches are required to overcome the onset of that resistance. Immunotherapies with novel monoclonal, drug-conjugated, or bi-specific antibodies, as well as the use of chimeric antigen receptor T cells, have been recently developed and are currently investigated. However, other non-immunologic therapeutic regimens based on melfluflen, venetoclax, or selinexor, three molecules with new mechanisms of action, have also shown promising results in the setting of relapsed/refractory myeloma. Here we report the most recent literature data regarding these three drugs, focusing on their efficacy and safety in multiple myeloma.
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Affiliation(s)
- Nicola Sgherza
- Unit of Hematology and Stem Cell Transplantation, Azienda Ospedaliero Universitaria Consorziale (AOUC) Policlinico, Bari, Italy
| | - Paola Curci
- Unit of Hematology and Stem Cell Transplantation, Azienda Ospedaliero Universitaria Consorziale (AOUC) Policlinico, Bari, Italy
| | - Rita Rizzi
- Unit of Hematology and Stem Cell Transplantation, Azienda Ospedaliero Universitaria Consorziale (AOUC) Policlinico, Bari, Italy
- Department of Emergency and Organ Transplantation, “Aldo Moro” University School of Medicine, Bari, Italy
| | - Pellegrino Musto
- Unit of Hematology and Stem Cell Transplantation, Azienda Ospedaliero Universitaria Consorziale (AOUC) Policlinico, Bari, Italy
- Department of Emergency and Organ Transplantation, “Aldo Moro” University School of Medicine, Bari, Italy
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28
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Schneller A, Zojer N, Bolomsky A, Ludwig H. Synergistic interaction between HDAC and MCL-1 inhibitors through downregulation of BCL-XL in multiple myeloma. Haematologica 2021; 106:2516-2521. [PMID: 33910332 PMCID: PMC8409038 DOI: 10.3324/haematol.2020.277152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Indexed: 11/09/2022] Open
Affiliation(s)
- Anja Schneller
- Department of Medicine I, Wilhelminen Cancer Research Institute, Clinic Ottakring, Vienna, Austria; Recipient of a DOC Fellowship of the Austrian Academy of Sciences at the Wilhelminen Cancer Research Institute
| | - Niklas Zojer
- Department of Medicine I, Wilhelminen Cancer Research Institute, Clinic Ottakring, Vienna
| | - Arnold Bolomsky
- Department of Medicine I, Wilhelminen Cancer Research Institute, Clinic Ottakring, Vienna
| | - Heinz Ludwig
- Department of Medicine I, Wilhelminen Cancer Research Institute, Clinic Ottakring, Vienna.
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29
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BCL2 inhibitors and MCL1 inhibitors for hematological malignancies. Blood 2021; 138:1120-1136. [PMID: 34320168 DOI: 10.1182/blood.2020006785] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 05/17/2021] [Indexed: 11/20/2022] Open
Abstract
BCL2 and MCL1 are commonly expressed pro-survival (anti-apoptotic) proteins in hematological cancers and play important roles in their biology either through dysregulation or by virtue of intrinsic importance to the cell-of-origin of the malignancy. A new class of small molecule anti-cancer drugs, BH3-mimetics, now enable specific targeting of these proteins in patients. BH3-mimetics act by inhibiting the pro-survival BCL2 proteins to enable the activation of BAX and BAK, apoptosis effectors which permeabilize the outer mitochondrial membrane, triggering apoptosis directly in many cells and sensitizing others to cell death when combined with other anti-neoplastic drugs. Venetoclax, a specific inhibitor of BCL2, is the first approved in class, demonstrating striking single agent activity in chronic lymphocytic leukemia (CLL) and in other lymphoid neoplasms, as well as activity against acute myeloid leukemia (AML), especially when used in combination. Key insights from the venetoclax experience include that responses occur rapidly, with major activity as monotherapy proving to be the best indicator for success in combination regimens. This emphasizes the importance of adequate single agent studies for drugs in this class. Furthermore, secondary resistance is common with long-term exposure and often mediated by genetic or adaptive changes in the apoptotic pathway, suggesting that BH3-mimetics are better suited to limited-duration, rather than continuous, therapy. The success of venetoclax has inspired development of BH3-mimetics targeting MCL1. Despite promising preclinical activity against MYC-driven lymphomas, myeloma and AML, their success may particularly depend on their tolerability profile given physiological roles for MCL1 in several non-hematological tissues.
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30
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Gupta VA, Barwick BG, Matulis SM, Shirasaki R, Jaye DL, Keats JJ, Oberlton B, Joseph NS, Hofmeister CC, Heffner LT, Dhodapkar MV, Nooka AK, Lonial S, Mitsiades CS, Kaufman JL, Boise LH. Venetoclax sensitivity in multiple myeloma is associated with B-cell gene expression. Blood 2021; 137:3604-3615. [PMID: 33649772 PMCID: PMC8462405 DOI: 10.1182/blood.2020007899] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 01/29/2021] [Indexed: 01/31/2023] Open
Abstract
Venetoclax is a highly potent, selective BCL2 inhibitor capable of inducing apoptosis in cells dependent on BCL2 for survival. Most myeloma is MCL1-dependent; however, a subset of myeloma enriched for translocation t(11;14) is codependent on BCL2 and thus sensitive to venetoclax. The biology underlying this heterogeneity remains poorly understood. We show that knockdown of cyclin D1 does not induce resistance to venetoclax, arguing against a direct role for cyclin D1 in venetoclax sensitivity. To identify other factors contributing to venetoclax response, we studied a panel of 31 myeloma cell lines and 25 patient samples tested for venetoclax sensitivity. In cell lines, we corroborated our previous observation that BIM binding to BCL2 correlates with venetoclax response and further showed that knockout of BIM results in decreased venetoclax sensitivity. RNA-sequencing analysis identified expression of B-cell genes as enriched in venetoclax-sensitive myeloma, although no single gene consistently delineated sensitive and resistant cells. However, a panel of cell surface makers correlated well with ex vivo prediction of venetoclax response in 21 patient samples and may serve as a biomarker independent of t(11;14). Assay for transposase-accessible chromatin sequencing of myeloma cell lines also identified an epigenetic program in venetoclax-sensitive cells that was more similar to B cells than that of venetoclax-resistant cells, as well as enrichment for basic leucine zipper domain-binding motifs such as BATF. Together, these data indicate that remnants of B-cell biology are associated with BCL2 dependency and point to novel biomarkers of venetoclax-sensitive myeloma independent of t(11;14).
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MESH Headings
- B-Lymphocytes/metabolism
- Basic-Leucine Zipper Transcription Factors/genetics
- Basic-Leucine Zipper Transcription Factors/metabolism
- Bridged Bicyclo Compounds, Heterocyclic/pharmacology
- Cell Line, Tumor
- Chromosomes, Human, Pair 11/genetics
- Chromosomes, Human, Pair 11/metabolism
- Chromosomes, Human, Pair 14/genetics
- Chromosomes, Human, Pair 14/metabolism
- Cyclin D1/genetics
- Cyclin D1/metabolism
- Epigenesis, Genetic/drug effects
- Gene Expression Regulation, Neoplastic/drug effects
- Gene Knockdown Techniques
- Humans
- Multiple Myeloma/drug therapy
- Multiple Myeloma/genetics
- Multiple Myeloma/metabolism
- Proto-Oncogene Proteins c-bcl-2/genetics
- Proto-Oncogene Proteins c-bcl-2/metabolism
- Sulfonamides/pharmacology
- Translocation, Genetic/drug effects
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Affiliation(s)
- Vikas A Gupta
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - Benjamin G Barwick
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - Shannon M Matulis
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - Ryosuke Shirasaki
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
| | - David L Jaye
- Department of Pathology and Laboratory Medicine, Winship Cancer Institute of Emory University, Atlanta, GA; and
| | - Jonathan J Keats
- Integrated Cancer Genomics Division, Translational Genomics Research Institute, Phoenix, AZ
| | - Benjamin Oberlton
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - Nisha S Joseph
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - Craig C Hofmeister
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - Leonard T Heffner
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - Madhav V Dhodapkar
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - Ajay K Nooka
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - Sagar Lonial
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | | | - Jonathan L Kaufman
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - Lawrence H Boise
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
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31
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Wang H, Guo M, Wei H, Chen Y. Targeting MCL-1 in cancer: current status and perspectives. J Hematol Oncol 2021; 14:67. [PMID: 33883020 PMCID: PMC8061042 DOI: 10.1186/s13045-021-01079-1] [Citation(s) in RCA: 134] [Impact Index Per Article: 44.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 04/14/2021] [Indexed: 12/13/2022] Open
Abstract
Myeloid leukemia 1 (MCL-1) is an antiapoptotic protein of the BCL-2 family that prevents apoptosis by binding to the pro-apoptotic BCL-2 proteins. Overexpression of MCL-1 is frequently observed in many tumor types and is closely associated with tumorigenesis, poor prognosis and drug resistance. The central role of MCL-1 in regulating the mitochondrial apoptotic pathway makes it an attractive target for cancer therapy. Significant progress has been made with regard to MCL-1 inhibitors, some of which have entered clinical trials. Here, we discuss the mechanism by which MCL-1 regulates cancer cell apoptosis and review the progress related to MCL-1 small molecule inhibitors and their role in cancer therapy.
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Affiliation(s)
- Haolan Wang
- Department of Oncology, NHC Key Laboratory of Cancer Proteomics, Laboratory of Structural Biology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Ming Guo
- Department of Oncology, NHC Key Laboratory of Cancer Proteomics, Laboratory of Structural Biology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Hudie Wei
- Department of Oncology, NHC Key Laboratory of Cancer Proteomics, Laboratory of Structural Biology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
| | - Yongheng Chen
- Department of Oncology, NHC Key Laboratory of Cancer Proteomics, Laboratory of Structural Biology, National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China. .,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
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32
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Lernoux M, Schnekenburger M, Dicato M, Diederich M. Susceptibility of multiple myeloma to B-cell lymphoma 2 family inhibitors. Biochem Pharmacol 2021; 188:114526. [PMID: 33741332 DOI: 10.1016/j.bcp.2021.114526] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 03/08/2021] [Accepted: 03/10/2021] [Indexed: 01/18/2023]
Abstract
Multiple myeloma (MM) is a biologically complex hematological disorder defined by the clonal proliferation of malignant plasma cells producing excessive monoclonal immunoglobulin that interacts with components of the bone marrow microenvironment, resulting in the major clinical features of MM. Despite the development of numerous protocols to treat MM patients, this cancer remains currently incurable; due in part to the emergence of resistant clones, highlighting the unmet need for innovative therapeutic approaches. Accumulating evidence suggests that the survival of MM molecular subgroups depends on the expression profiles of specific subsets of anti-apoptotic B-cell lymphoma (BCL)-2 family members. This review summarizes the mechanisms underlying the anti-myeloma activities of the potent BCL-2 family protein inhibitors, individually or in combination with conventional therapeutic options, and provides an overview of the strong rationale to clinically investigate such interventions for MM therapy.
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Affiliation(s)
- Manon Lernoux
- Laboratoire de Biologie Moléculaire et Cellulaire du Cancer, Hôpital Kirchberg 9, rue Edward Steichen, L-2540 Luxembourg, Luxembourg
| | - Michael Schnekenburger
- Laboratoire de Biologie Moléculaire et Cellulaire du Cancer, Hôpital Kirchberg 9, rue Edward Steichen, L-2540 Luxembourg, Luxembourg
| | - Mario Dicato
- Laboratoire de Biologie Moléculaire et Cellulaire du Cancer, Hôpital Kirchberg 9, rue Edward Steichen, L-2540 Luxembourg, Luxembourg
| | - Marc Diederich
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea.
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33
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Gupta VA, Ackley J, Kaufman JL, Boise LH. BCL2 Family Inhibitors in the Biology and Treatment of Multiple Myeloma. BLOOD AND LYMPHATIC CANCER-TARGETS AND THERAPY 2021; 11:11-24. [PMID: 33737856 PMCID: PMC7965688 DOI: 10.2147/blctt.s245191] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 02/26/2021] [Indexed: 12/12/2022]
Abstract
Although much progress has been made in the treatment of multiple myeloma, the majority of patients fail to be cured and require numerous lines of therapy. Inhibitors of the BCL2 family represent an exciting new class of drugs with a novel mechanism of action that are likely to have activity as single agents and in combination with existing myeloma therapies. The BCL2 proteins are oncogenes that promote cell survival and are frequently upregulated in multiple myeloma, making them attractive targets. Venetoclax, a BCL2 specific inhibitor, is furthest along in development and has shown promising results in a subset of myeloma characterized by the t(11;14) translocation. Combining venetoclax with proteasome inhibitors and monoclonal antibodies has improved responses in a broader group of patients, but has come at the expense of a toxicity safety signal that requires additional follow-up. MCL1 inhibitors are likely to be effective in a broader range of patients and are currently in early clinical trials. This review will cover much of what is known about the biology of these drugs, biomarkers that predict response, mechanisms of resistance, and unanswered questions as they pertain to multiple myeloma.
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Affiliation(s)
- Vikas A Gupta
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Emory University School of Medicine, Atlanta, GA, USA
| | - James Ackley
- Cancer Biology Graduate Program, Winship Cancer Institute of Emory University, Emory University School of Medicine, Atlanta, GA, USA
| | - Jonathan L Kaufman
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Emory University School of Medicine, Atlanta, GA, USA
| | - Lawrence H Boise
- Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Emory University School of Medicine, Atlanta, GA, USA
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Kist M, Vucic D. Cell death pathways: intricate connections and disease implications. EMBO J 2021; 40:e106700. [PMID: 33439509 PMCID: PMC7917554 DOI: 10.15252/embj.2020106700] [Citation(s) in RCA: 139] [Impact Index Per Article: 46.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/11/2020] [Accepted: 10/14/2020] [Indexed: 12/14/2022] Open
Abstract
Various forms of cell death have been identified over the last decades with each relying on a different subset of proteins for the activation and execution of their respective pathway(s). In addition to the three best characterized pathways-apoptosis, necroptosis, and pyroptosis-other forms of regulated cell death including autophagy-dependent cell death (ADCD), mitochondrial permeability transition pore (MPTP)-mediated necrosis, parthanatos, NETosis and ferroptosis, and their relevance for organismal homeostasis are becoming better understood. Importantly, it is increasingly clear that none of these pathways operate alone. Instead, a more complex picture is emerging with many pathways sharing components and signaling principles. Finally, a number of cell death regulators are implicated in human diseases and represent attractive therapeutic targets. Therefore, better understanding of physiological and mechanistic aspects of cell death signaling should yield improved reagents for addressing unmet medical needs.
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Affiliation(s)
- Matthias Kist
- Department of Early Discovery BiochemistryGenentechSouth San FranciscoUSA
| | - Domagoj Vucic
- Department of Early Discovery BiochemistryGenentechSouth San FranciscoUSA
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Myeloma-specific superenhancers affect genes of biological and clinical relevance in myeloma. Blood Cancer J 2021; 11:32. [PMID: 33579893 PMCID: PMC7881003 DOI: 10.1038/s41408-021-00421-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 12/14/2020] [Accepted: 01/20/2021] [Indexed: 01/09/2023] Open
Abstract
Multiple myeloma (MM) is an aggressive plasma cell neoplasm characterized by genomic heterogeneity. Superenhancers (SEs) are defined as large clusters of enhancers in close genomic proximity, which regulate genes for maintaining cellular identity and promote oncogenic transcription to which cancer cells highly addicted. Here, we analyzed cis-regulatory elements in MM samples with H3K27ac ChIP-seq, to identify novel SE-associated genes involved in the myeloma pathogenesis. SEs and their associated genes in cancerous tissue were compared with the control samples, and we found SE analysis alone uncovered cell-lineage-specific transcription factors and well-known oncogenes ST3GAL6 and ADM. Using a transcriptional CDK7 inhibitor, THZ1, coupled with H3K27ac ChlP-seq, we identified MAGI2 as a novel SE-associated gene of myeloma cells. Elevated MAGI2 was related to myelomagenesis with gradual increased expression from MGUS, SMM to newly diagnosed and relapsed MM. High prevalence of MAGI2 was also associated with poor survival of MM patients. Importantly, inhibition of the SE activity associated with MAGI2 decreased MAGI2 expression, inhibited cell growth and induced cell apoptosis. Mechanistically, we revealed that the oncogenic transcription factor, MAF, directly bound to the SE region and activated gene transcription. In summary, the discoveries of these acquired SEs-associated genes and the novel mechanism by which they are regulated provide new insights into MM biology and MAGI2-MAF-SE regulatory circuit offer potential novel targets for disease treatment.
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36
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Li J, Hou X, Bai J, Zhou Y, Chen C, Yang X, Fang H. Synthesis and evaluation of a UMI-77-based fluorescent probe for selective detecting Mcl-1 protein and imaging in living cancer cells. Bioorg Med Chem 2021; 29:115850. [PMID: 33229135 DOI: 10.1016/j.bmc.2020.115850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 10/06/2020] [Accepted: 11/01/2020] [Indexed: 11/16/2022]
Abstract
Development of efficient fluorescent probes for detecting the overexpressed Mcl-1 protein in living cells is imperative for the diagnosis and treatment of cancers. In this paper, a new UMI-77 based fluorescent probe (DNSH), was synthesized and characterized. DNSH bound to the hydrophobic pockets of Mcl-1 protein tightly and the binding affinity was 20-fold higher than that of previous developed Mcl-1 probe. DNSH exhibited specific fluorescence response to Mcl-1 protein rather than other proteins. In the presence of Mcl-1 protein, fluorescence emission of DNSH can be switched on. Furthermore, fluorescence colocalization experiment demonstrated that DNSH can be successfully used for imaging mitochondrial Mcl-1 protein in human prostate cancer cells without a washing process. These results showed that DNSH may find useful applications in biological research such as tracking Mcl-1 protein in living biological specimens.
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Affiliation(s)
- Jia Li
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Science, Cheeloo College of Medicine, Shandong University, Ji'nan, Shandong, PR China
| | - Xuben Hou
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Science, Cheeloo College of Medicine, Shandong University, Ji'nan, Shandong, PR China
| | - Jinzhuo Bai
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Science, Cheeloo College of Medicine, Shandong University, Ji'nan, Shandong, PR China
| | - Yi Zhou
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Science, Cheeloo College of Medicine, Shandong University, Ji'nan, Shandong, PR China
| | - Chen Chen
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Science, Cheeloo College of Medicine, Shandong University, Ji'nan, Shandong, PR China
| | - Xinying Yang
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Science, Cheeloo College of Medicine, Shandong University, Ji'nan, Shandong, PR China.
| | - Hao Fang
- Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Science, Cheeloo College of Medicine, Shandong University, Ji'nan, Shandong, PR China
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37
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Interdiction at a protein-protein interface: MCL-1 inhibitors for oncology. Bioorg Med Chem Lett 2021; 32:127717. [DOI: 10.1016/j.bmcl.2020.127717] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 11/20/2020] [Accepted: 11/21/2020] [Indexed: 01/19/2023]
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Haselager MV, Kielbassa K, Ter Burg J, Bax DJC, Fernandes SM, Borst J, Tam C, Forconi F, Chiodin G, Brown JR, Dubois J, Kater AP, Eldering E. Changes in Bcl-2 members after ibrutinib or venetoclax uncover functional hierarchy in determining resistance to venetoclax in CLL. Blood 2020; 136:2918-2926. [PMID: 32603412 DOI: 10.1182/blood.2019004326] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 06/17/2020] [Indexed: 12/13/2022] Open
Abstract
Chronic lymphocytic leukemia (CLL) cells cycle between lymph node (LN) and peripheral blood (PB) and display major shifts in Bcl-2 family members between those compartments. Specifically, Bcl-XL and Mcl-1, which are not targeted by the Bcl-2 inhibitor venetoclax, are increased in the LN. Because ibrutinib forces CLL cells out of the LN, we hypothesized that ibrutinib may thereby affect expression of Bcl-XL and Mcl-1 and sensitize CLL cells to venetoclax. We investigated expression of Bcl-2 family members in patients under ibrutinib or venetoclax treatment, combined with dissecting functional interactions of Bcl-2 family members, in an in vitro model of venetoclax resistance. In the PB, recent LN emigrants had higher Bcl-XL and Mcl-1 expression than did cells immigrating back to the LN. Under ibrutinib treatment, this distinction collapsed; significantly, the pretreatment profile reappeared in patients who relapsed on ibrutinib. However, in response to venetoclax, Bcl-2 members displayed an early increase, underlining the different modes of action of these 2 drugs. Profiling by BH3 mimetics was performed in CLL cells fully resistant to venetoclax due to CD40-mediated induction of Bcl-XL, Mcl-1, and Bfl-1. Several dual or triple combinations of BH3 mimetics were highly synergistic in restoring killing of CLL cells. Lastly, we demonstrated that proapoptotic Bim interacts with antiapoptotic Bcl-2 members in a sequential manner: Bcl-2 > Bcl-XL > Mcl-1 > Bfl-1. Combined, the data indicate that Bcl-XL is more important in venetoclax resistance than is Mcl-1 and provide biological rationale for potential synergy between ibrutinib and venetoclax.
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MESH Headings
- Adenine/administration & dosage
- Adenine/analogs & derivatives
- Bridged Bicyclo Compounds, Heterocyclic/administration & dosage
- Drug Resistance, Neoplasm/drug effects
- Female
- Gene Expression Regulation, Leukemic/drug effects
- Humans
- Leukemia, Lymphocytic, Chronic, B-Cell/drug therapy
- Leukemia, Lymphocytic, Chronic, B-Cell/metabolism
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Male
- Piperidines/administration & dosage
- Proto-Oncogene Proteins c-bcl-2/antagonists & inhibitors
- Proto-Oncogene Proteins c-bcl-2/biosynthesis
- Sulfonamides/administration & dosage
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Affiliation(s)
- Marco V Haselager
- Department of Experimental Immunology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
- Lymphoma and Myeloma Center Amsterdam (LYMMCARE), Amsterdam, The Netherlands
- Cancer Center Amsterdam, Amsterdam, The Netherlands
- Amsterdam Infection and Immunity Institute, Amsterdam, The Netherlands
| | - Karoline Kielbassa
- Department of Experimental Immunology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
- Lymphoma and Myeloma Center Amsterdam (LYMMCARE), Amsterdam, The Netherlands
- Cancer Center Amsterdam, Amsterdam, The Netherlands
- Amsterdam Infection and Immunity Institute, Amsterdam, The Netherlands
| | - Johanna Ter Burg
- Department of Experimental Immunology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
- Department of Hematology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Danique J C Bax
- Department of Experimental Immunology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Stacey M Fernandes
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
| | - Jannie Borst
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Leiden, The Netherlands
| | - Constantine Tam
- Peter MacCallum Cancer Centre and St. Vincent's Hospital, University of Melbourne, Melbourne, VIC, Australia; and
| | - Francesco Forconi
- Cancer Sciences and Haematology Department, University of Southampton, Southampton, United Kingdom
| | - Giorgia Chiodin
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
| | - Jennifer R Brown
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA
| | - Julie Dubois
- Department of Experimental Immunology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
- Department of Hematology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Arnon P Kater
- Lymphoma and Myeloma Center Amsterdam (LYMMCARE), Amsterdam, The Netherlands
- Cancer Center Amsterdam, Amsterdam, The Netherlands
- Amsterdam Infection and Immunity Institute, Amsterdam, The Netherlands
- Department of Hematology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Eric Eldering
- Department of Experimental Immunology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
- Lymphoma and Myeloma Center Amsterdam (LYMMCARE), Amsterdam, The Netherlands
- Cancer Center Amsterdam, Amsterdam, The Netherlands
- Amsterdam Infection and Immunity Institute, Amsterdam, The Netherlands
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39
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Bolomsky A, Vogler M, Köse MC, Heckman CA, Ehx G, Ludwig H, Caers J. MCL-1 inhibitors, fast-lane development of a new class of anti-cancer agents. J Hematol Oncol 2020; 13:173. [PMID: 33308268 PMCID: PMC7731749 DOI: 10.1186/s13045-020-01007-9] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 11/22/2020] [Indexed: 12/24/2022] Open
Abstract
Cell death escape is one of the most prominent features of tumor cells and closely linked to the dysregulation of members of the Bcl-2 family of proteins. Among those, the anti-apoptotic family member myeloid cell leukemia-1 (MCL-1) acts as a master regulator of apoptosis in various human malignancies. Irrespective of its unfavorable structure profile, independent research efforts recently led to the generation of highly potent MCL-1 inhibitors that are currently evaluated in clinical trials. This offers new perspectives to target a so far undruggable cancer cell dependency. However, a detailed understanding about the tumor and tissue type specific implications of MCL-1 are a prerequisite for the optimal (i.e., precision medicine guided) use of this novel drug class. In this review, we summarize the major functions of MCL-1 with a special focus on cancer, provide insights into its different roles in solid vs. hematological tumors and give an update about the (pre)clinical development program of state-of-the-art MCL-1 targeting compounds. We aim to raise the awareness about the heterogeneous role of MCL-1 as drug target between, but also within tumor entities and to highlight the importance of rationale treatment decisions on a case by case basis.
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Affiliation(s)
- Arnold Bolomsky
- Wilhelminen Cancer Research Institute, Wilhelminenspital, Vienna, Austria
| | - Meike Vogler
- Department of Clinical Hematology, GIGA-I3, University of Liège, CHU De Liège, 35, Dom Univ Sart Tilman B, 4000, Liège, Belgium
| | - Murat Cem Köse
- Institute for Experimental Cancer Research in Pediatrics, Goethe-University, Frankfurt, Germany
| | - Caroline A Heckman
- Institute for Molecular Medicine Finland-FIMM, HiLIFE-Helsinki Institute of Life Science, iCAN Digital Cancer Medicine Flagship, University of Helsinki, Helsinki, Finland
| | - Grégory Ehx
- Institute for Experimental Cancer Research in Pediatrics, Goethe-University, Frankfurt, Germany
| | - Heinz Ludwig
- Wilhelminen Cancer Research Institute, Wilhelminenspital, Vienna, Austria
| | - Jo Caers
- Department of Clinical Hematology, GIGA-I3, University of Liège, CHU De Liège, 35, Dom Univ Sart Tilman B, 4000, Liège, Belgium.
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40
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Roberts AW. Therapeutic development and current uses of BCL-2 inhibition. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2020; 2020:1-9. [PMID: 33275682 PMCID: PMC7727569 DOI: 10.1182/hematology.2020000154] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
B-cell lymphoma 2 (BCL2) is a key protein regulator of apoptosis. It is variably highly expressed in many hematological malignancies, providing protection from cell death induced by oncogenic and external stresses. Venetoclax is the first selective BCL2 inhibitor, and the first of a new class of anticancer drug (BH3-mimetics) to be approved for routine clinical practice, currently in chronic lymphocytic leukemia (CLL) and acute myeloid leukemia (AML). To help understand the potential and limitations of this therapy, this brief review will touch on the history of development of venetoclax, dissect its mechanism of action, and summarize critical evidence for its approved use in the management of patients with CLL and AML. It will also consider recent data on mechanisms of resistance and explore concepts pertinent to its future development based on key lessons learned to date.
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Affiliation(s)
- Andrew W Roberts
- Blood Cells and Blood Cancer Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia; Department of Clinical Haematology, The Royal Melbourne Hospital and Peter MacCallum Cancer Centre, Melbourne, Australia; Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Parkville, Australia; and Victorian Comprehensive Cancer Centre, Melbourne, Australia
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41
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Lin VS, Xu ZF, Huang DCS, Thijssen R. BH3 Mimetics for the Treatment of B-Cell Malignancies-Insights and Lessons from the Clinic. Cancers (Basel) 2020; 12:cancers12113353. [PMID: 33198338 PMCID: PMC7696913 DOI: 10.3390/cancers12113353] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/06/2020] [Accepted: 11/10/2020] [Indexed: 12/17/2022] Open
Abstract
Simple Summary B-cell malignancies, including chronic lymphocytic leukemia (CLL), non-Hodgkin lymphoma (NHL), and plasma cell dyscrasias, are significant contributors to cancer morbidity and mortality worldwide. The pathogenesis of many B-cell malignancies involves perturbations in the intrinsic pathway of apoptosis that allow cells to evade cell death. BH3 mimetics represent a class of anti-cancer agents that can restore the ability of cancer cells to undergo apoptosis. Venetoclax, a recently approved BH3 mimetic, has transformed the therapeutic landscape for CLL. Other BH3 mimetics are currently under development. This review summarizes the available data on existing BH3 mimetics and highlights both the rapidly expanding role of BH3 mimetics in the treatment of B-cell malignancies and the clinical challenges of their use. Abstract The discovery of the link between defective apoptotic regulation and cancer cell survival engendered the idea of targeting aberrant components of the apoptotic machinery for cancer therapy. The intrinsic pathway of apoptosis is tightly controlled by interactions amongst members of three distinct subgroups of the B-cell lymphoma 2 (BCL2) family of proteins. The pro-survival BCL2 proteins prevent apoptosis by keeping the pro-apoptotic effector proteins BCL2-associated X protein (BAX) and BCL2 homologous antagonist/killer (BAK) in check, while the BH3-only proteins initiate apoptosis by either neutralizing the pro-survival BCL2 proteins or directly activating the pro-apoptotic effector proteins. This tripartite regulatory mechanism is commonly perturbed in B-cell malignancies facilitating cell death evasion. Over the past two decades, structure-based drug discovery has resulted in the development of a series of small molecules that mimic the function of BH3-only proteins called the BH3 mimetics. The most clinically advanced of these is venetoclax, which is a highly selective inhibitor of BCL2 that has transformed the treatment landscape for chronic lymphocytic leukemia (CLL). Other BH3 mimetics, which selectively target myeloid cell leukemia 1 (MCL1) and B-cell lymphoma extra large (BCLxL), are currently under investigation for use in diverse malignancies. Here, we review the current role of BH3 mimetics in the treatment of CLL and other B-cell malignancies and address open questions in this rapidly evolving field.
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Affiliation(s)
- Victor S. Lin
- The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, 3052 Parkville, Australia; (V.S.L.); (Z.-F.X.); (D.C.S.H.)
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, 3000 Melbourne, Australia
| | - Zhuo-Fan Xu
- The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, 3052 Parkville, Australia; (V.S.L.); (Z.-F.X.); (D.C.S.H.)
- School of Medicine, Tsinghua University, 30 Shuangqing Road, Haidian District, Beijing 100084, China
| | - David C. S. Huang
- The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, 3052 Parkville, Australia; (V.S.L.); (Z.-F.X.); (D.C.S.H.)
- Department of Medical Biology, University of Melbourne, 3000 Melbourne, Australia
| | - Rachel Thijssen
- The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, 3052 Parkville, Australia; (V.S.L.); (Z.-F.X.); (D.C.S.H.)
- Department of Medical Biology, University of Melbourne, 3000 Melbourne, Australia
- Correspondence:
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42
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Fedele PL, Liao Y, Gong JN, Yao Y, van Delft MF, Low MSY, Tai L, Herold MJ, Jackson JT, Teh CE, Tan T, O'Reilly LA, Tellier J, Grigoriadis G, Huang DCS, Shi W, Nutt SL, Willis SN. The transcription factor IRF4 represses proapoptotic BMF and BIM to licence multiple myeloma survival. Leukemia 2020; 35:2114-2118. [PMID: 33149265 DOI: 10.1038/s41375-020-01078-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 10/12/2020] [Accepted: 10/22/2020] [Indexed: 12/29/2022]
Affiliation(s)
- Pasquale L Fedele
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, VIC, 3010, Australia.,Haematology Department, Monash Health, Clayton, VIC, 3168, Australia.,School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
| | - Yang Liao
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, VIC, 3010, Australia.,Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, 3084, Australia.,School of Cancer Medicine, La Trobe University, Heidelberg, VIC, 3084, Australia
| | - Jia-Nan Gong
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Yuan Yao
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, VIC, 3010, Australia.,School of Medicine, Tsinghua University, Beijing, China
| | - Mark F van Delft
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Michael S Y Low
- Haematology Department, Monash Health, Clayton, VIC, 3168, Australia.,School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
| | - Lin Tai
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
| | - Marco J Herold
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Jacob T Jackson
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Charis E Teh
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Tania Tan
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia
| | - Lorraine A O'Reilly
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Julie Tellier
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - George Grigoriadis
- Haematology Department, Monash Health, Clayton, VIC, 3168, Australia.,School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
| | - David C S Huang
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,Department of Medical Biology, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Wei Shi
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia.,Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, 3084, Australia.,School of Cancer Medicine, La Trobe University, Heidelberg, VIC, 3084, Australia.,School of Computing and Information Systems, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Stephen L Nutt
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia. .,Department of Medical Biology, The University of Melbourne, Parkville, VIC, 3010, Australia.
| | - Simon N Willis
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, 3052, Australia. .,Department of Medical Biology, The University of Melbourne, Parkville, VIC, 3010, Australia.
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43
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Reale A, Khong T, Mithraprabhu S, Savvidou I, Hocking J, Bergin K, Ramachandran M, Chen M, Dammacco F, Ria R, Silvestris F, Vacca A, Reynolds J, Spencer A. TOP2A expression predicts responsiveness to carfilzomib in myeloma and informs novel combinatorial strategies for enhanced proteasome inhibitor cell killing. Leuk Lymphoma 2020; 62:337-347. [PMID: 33131357 DOI: 10.1080/10428194.2020.1832659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Microarray was utilized to determine if a genetic signature associated with resistance to carfilzomib (CFZ) could be identified. Twelve human myeloma (MM) cell lines (HMCLs) were treated with CFZ and a cell-viability profile was assessed categorizing HMCLs as sensitive or resistant to CFZ. The gene expression profiles (GEP) of untreated resistant versus sensitive HMCLs revealed 29 differentially expressed genes. TOP2A, an enzyme involved in cell cycle and proliferation, was overexpressed in carfilzomib-resistant HMCLs. TOP2A protein expression levels, evaluated utilizing trephine biopsy specimens acquired prior to treatment with proteasome inhibitors, were higher in patients failing to achieve a response when compared to responding patients. Logistic-regression analysis confirmed that TOP2A protein expression was a highly significant predictor of response to PIs (AUC 0.738). Further, the combination of CFZ with TOP2A inhibitors, demonstrated synergistic cytotoxic effects in vitro, providing a rationale for combining topoisomerase inhibitors with CFZ to overcome resistance in MM.
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Affiliation(s)
- Antonia Reale
- Myeloma Research Group, Australian Centre for Blood Diseases, The Alfred Hospital/Monash University, Melbourne, Australia
| | - Tiffany Khong
- Myeloma Research Group, Australian Centre for Blood Diseases, The Alfred Hospital/Monash University, Melbourne, Australia
| | - Sridurga Mithraprabhu
- Myeloma Research Group, Australian Centre for Blood Diseases, The Alfred Hospital/Monash University, Melbourne, Australia
| | - Ioanna Savvidou
- Myeloma Research Group, Australian Centre for Blood Diseases, The Alfred Hospital/Monash University, Melbourne, Australia
| | - Jay Hocking
- Myeloma Research Group, Australian Centre for Blood Diseases, The Alfred Hospital/Monash University, Melbourne, Australia.,Department of Clinical Haematology, Box Hill, Melbourne, Australia.,Myeloma Clinic, The Alfred Centre, Melbourne, Australia
| | - Krystal Bergin
- Myeloma Research Group, Australian Centre for Blood Diseases, The Alfred Hospital/Monash University, Melbourne, Australia
| | - Malarmathy Ramachandran
- Myeloma Research Group, Australian Centre for Blood Diseases, The Alfred Hospital/Monash University, Melbourne, Australia
| | - Maoshan Chen
- Myeloma Research Group, Australian Centre for Blood Diseases, The Alfred Hospital/Monash University, Melbourne, Australia
| | - Francesco Dammacco
- Department of Internal Medicine and Human Oncology, University of Bari 'Aldo Moro', Bari, Italy
| | - Roberto Ria
- Department of Internal Medicine and Human Oncology, University of Bari 'Aldo Moro', Bari, Italy
| | - Francesco Silvestris
- Department of Internal Medicine and Human Oncology, University of Bari 'Aldo Moro', Bari, Italy
| | - Angelo Vacca
- Department of Internal Medicine and Human Oncology, University of Bari 'Aldo Moro', Bari, Italy
| | - John Reynolds
- Biostatistics Consulting Platform, Faculty of Medicine, Nursing and Health Sciences, Monash University, The Alfred Centre, Melbourne, Australia
| | - Andrew Spencer
- Myeloma Research Group, Australian Centre for Blood Diseases, The Alfred Hospital/Monash University, Melbourne, Australia.,Malignant Haematology and Stem Cell Transplantation, The Alfred Hospital, Melbourne, Australia.,Department of Clinical Haematology, Monash University, Melbourne, Australia
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44
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Yue X, Chen Q, He J. Combination strategies to overcome resistance to the BCL2 inhibitor venetoclax in hematologic malignancies. Cancer Cell Int 2020; 20:524. [PMID: 33292251 PMCID: PMC7597043 DOI: 10.1186/s12935-020-01614-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 10/20/2020] [Indexed: 12/12/2022] Open
Abstract
Venetoclax has been approved by the United States Food and Drug Administration since 2016 as a monotherapy for treating patients with relapsed/refractory chronic lymphocytic leukemia having 17p deletion. It has led to a breakthrough in the treatment of hematologic malignancies in recent years. However, unfortunately, resistance to venetoclax is inevitable. Multiple studies confirmed that the upregulation of the anti-apoptotic proteins of the B-cell lymphoma 2 (BCL2) family mediated by various mechanisms, such as tumor microenvironment, and the activation of intracellular signaling pathways were the major factors leading to resistance to venetoclax. Therefore, only targeting BCL2 often fails to achieve the expected therapeutic effect. Based on the mechanism of resistance in specific hematologic malignancies, the combination of specific drugs with venetoclax was a clinically optional treatment strategy for overcoming resistance to venetoclax. This study aimed to summarize the possible resistance mechanisms of various hematologic tumors to venetoclax and the corresponding clinical strategies to overcome resistance to venetoclax in hematologic malignancies.
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Affiliation(s)
- XiaoYan Yue
- Bone Marrow Transplantation Center, Department of Hematology, The First Affiliated Hospital, School of Medicine, Zhejiang University, No. 79, Qingchun Road, Hangzhou, Zhejiang, China
| | - Qingxiao Chen
- Bone Marrow Transplantation Center, Department of Hematology, The First Affiliated Hospital, School of Medicine, Zhejiang University, No. 79, Qingchun Road, Hangzhou, Zhejiang, China
| | - JingSong He
- Bone Marrow Transplantation Center, Department of Hematology, The First Affiliated Hospital, School of Medicine, Zhejiang University, No. 79, Qingchun Road, Hangzhou, Zhejiang, China.
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45
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Walker ZJ, Idler BM, Davis LN, Stevens BM, VanWyngarden MJ, Ohlstrom D, Bearrows SC, Hammes A, Smith CA, Jordan CT, Mark TM, Forsberg PA, Sherbenou DW. Exploiting Protein Translation Dependence in Multiple Myeloma with Omacetaxine-Based Therapy. Clin Cancer Res 2020; 27:819-830. [PMID: 33109736 DOI: 10.1158/1078-0432.ccr-20-2246] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/18/2020] [Accepted: 10/22/2020] [Indexed: 11/16/2022]
Abstract
PURPOSE The prognosis of patients with multiple myeloma who are resistant to proteasome inhibitors, immunomodulatory drugs (IMiD), and daratumumab is extremely poor. Even B-cell maturation antigen-specific chimeric antigen receptor T-cell therapies provide only a temporary benefit before patients succumb to their disease. In this article, we interrogate the unique sensitivity of multiple myeloma cells to the alternative strategy of blocking protein translation with omacetaxine. EXPERIMENTAL DESIGN We determined protein translation levels (n = 17) and sensitivity to omacetaxine (n = 51) of primary multiple myeloma patient samples. Synergy was evaluated between omacetaxine and IMiDs in vitro, ex vivo, and in vivo. Underlying mechanism was investigated via proteomic analysis. RESULTS Almost universally, primary patient multiple myeloma cells exhibit >2.5-fold increased rates of protein translation compared with normal marrow cells. Ex vivo treatment with omacetaxine resulted in >50% reduction in viable multiple myeloma cells. In this cohort, high levels of translation serve as a biomarker for patient multiple myeloma cell sensitivity to omacetaxine. Unexpectedly, omacetaxine demonstrated synergy with IMiDs in multiple myeloma cell lines in vitro. In addition, in an IMiD-resistant relapsed patient sample, omacetaxine/IMiD combination treatment resensitized the multiple myeloma cells to the IMiD. Proteomic analysis found that the omacetaxine/IMiD combination treatment produced a double-hit on the IRF4/c-MYC pathway, which is critical to multiple myeloma survival. CONCLUSIONS Overall, protein translation inhibitors represent a potential new drug class for myeloma treatment and provide a rationale for conducting clinical trials with omacetaxine alone and in combination with IMiDs for patients with relapsed/refractory multiple myeloma.
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Affiliation(s)
- Zachary J Walker
- Division of Hematology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Beau M Idler
- Division of Hematology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Lorraine N Davis
- 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
| | - Michael J VanWyngarden
- Division of Hematology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Denis Ohlstrom
- Biomedical Sciences and Biotechnology, Graduate School, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Shelby C Bearrows
- Division of Hematology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Andrew Hammes
- Center for Innovative Design and Analysis, Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Clayton A Smith
- 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
| | - Craig T Jordan
- 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
| | - Tomer M Mark
- 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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46
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Low MSY, Brodie EJ, Fedele PL, Liao Y, Grigoriadis G, Strasser A, Kallies A, Willis SN, Tellier J, Shi W, Gabriel S, O'Donnell K, Pitt C, Nutt SL, Tarlinton D. IRF4 Activity Is Required in Established Plasma Cells to Regulate Gene Transcription and Mitochondrial Homeostasis. Cell Rep 2020; 29:2634-2645.e5. [PMID: 31775034 DOI: 10.1016/j.celrep.2019.10.097] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 09/10/2019] [Accepted: 10/24/2019] [Indexed: 11/24/2022] Open
Abstract
The transcription factor interferon regulatory factor 4 (IRF4) is critical for the development, maintenance, and function of plasma cells. The mechanism by which IRF4 exerts its action in mature plasma cells has been elusive due to the death of all such cells upon IRF4 loss. While we identify apoptosis as a critical pathway for the death of plasma cells caused by IRF4 loss, we also determine that IRF4 did not regulate the intrinsic apoptotic pathway directly. By using an inducible IRF4 deletion system in the presence of the overexpression of anti-apoptotic BCL2, we identify genes whose expression is coordinated by IRF4 and that in turn specify plasma cell identity and mitochondrial homeostasis.
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Affiliation(s)
- Michael Sze Yuan Low
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville 3052, VIC, Australia; Monash Haematology, Monash Health, 246 Clayton Road, Clayton 3168, VIC, Australia; Department of Immunology and Pathology, Monash University, 89 Commercial Road, Melbourne 3004, VIC, Australia; School of Clinical Sciences at Monash Health, Centre for Cancer Research, Hudson Institute of Medical Research, Monash University, Clayton 3168, VIC, Australia; Department of Medical Biology, University of Melbourne, Melbourne 3010, VIC, Australia
| | - Erica J Brodie
- Department of Immunology and Pathology, Monash University, 89 Commercial Road, Melbourne 3004, VIC, Australia
| | - Pasquale L Fedele
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville 3052, VIC, Australia; Monash Haematology, Monash Health, 246 Clayton Road, Clayton 3168, VIC, Australia; School of Clinical Sciences at Monash Health, Centre for Cancer Research, Hudson Institute of Medical Research, Monash University, Clayton 3168, VIC, Australia; Department of Medical Biology, University of Melbourne, Melbourne 3010, VIC, Australia
| | - Yang Liao
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville 3052, VIC, Australia; Department of Medical Biology, University of Melbourne, Melbourne 3010, VIC, Australia; School of Computing and Information Systems, The University of Melbourne, Melbourne 3010, VIC, Australia
| | - George Grigoriadis
- Monash Haematology, Monash Health, 246 Clayton Road, Clayton 3168, VIC, Australia; School of Clinical Sciences at Monash Health, Centre for Cancer Research, Hudson Institute of Medical Research, Monash University, Clayton 3168, VIC, Australia
| | - Andreas Strasser
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville 3052, VIC, Australia; Department of Medical Biology, University of Melbourne, Melbourne 3010, VIC, Australia
| | - Axel Kallies
- The Peter Doherty Institute for Infection and Immunity, Department of Microbiology and Immunology, The University of Melbourne, Melbourne 3010, VIC, Australia
| | - Simon N Willis
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville 3052, VIC, Australia; Department of Medical Biology, University of Melbourne, Melbourne 3010, VIC, Australia
| | - Julie Tellier
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville 3052, VIC, Australia; Department of Medical Biology, University of Melbourne, Melbourne 3010, VIC, Australia
| | - Wei Shi
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville 3052, VIC, Australia; Department of Medical Biology, University of Melbourne, Melbourne 3010, VIC, Australia; School of Computing and Information Systems, The University of Melbourne, Melbourne 3010, VIC, Australia
| | - Sarah Gabriel
- The Peter Doherty Institute for Infection and Immunity, Department of Microbiology and Immunology, The University of Melbourne, Melbourne 3010, VIC, Australia
| | - Kristy O'Donnell
- Department of Immunology and Pathology, Monash University, 89 Commercial Road, Melbourne 3004, VIC, Australia
| | - Catherine Pitt
- Department of Immunology and Pathology, Monash University, 89 Commercial Road, Melbourne 3004, VIC, Australia
| | - Stephen L Nutt
- Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Parkville 3052, VIC, Australia; Department of Medical Biology, University of Melbourne, Melbourne 3010, VIC, Australia
| | - David Tarlinton
- Department of Immunology and Pathology, Monash University, 89 Commercial Road, Melbourne 3004, VIC, Australia.
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47
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Kaya EA, Baughn LB, Pham T, Ketterling RP, Kumar SK, Jevremovic D. Lymphoma-like double-hit genetic abnormalities ( MYC/IGH and IGH/BCL2) in a case of non-secretory multiple myeloma. Leuk Lymphoma 2020; 62:243-246. [PMID: 32955382 DOI: 10.1080/10428194.2020.1821012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Erin A Kaya
- Elson S Floyd College of Medicine (ESFCOM), Washington State University (WSU), Spokane, WA, USA
| | - Linda B Baughn
- Division of Laboratory Genetics, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Truc Pham
- Pathology, Incyte Diagnostics, Spokane Valley, WA, USA
| | - Rhett P Ketterling
- Division of Laboratory Genetics, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Shaji K Kumar
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | - Dragan Jevremovic
- Division of Hematopathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
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48
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Goliaei A, Woods HA, Tron AE, Belmonte MA, Secrist JP, Ferguson D, Drew L, Fretland AJ, Aldridge BB, Gibbons FD. Multiscale Model Identifies Improved Schedule for Treatment of Acute Myeloid Leukemia In Vitro With the Mcl-1 Inhibitor AZD5991. CPT-PHARMACOMETRICS & SYSTEMS PHARMACOLOGY 2020; 9:561-570. [PMID: 32860732 PMCID: PMC7577016 DOI: 10.1002/psp4.12552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 04/20/2020] [Indexed: 11/06/2022]
Abstract
Anticancer efficacy is driven not only by dose but also by frequency and duration of treatment. We describe a multiscale model combining cell cycle, cellular heterogeneity of B‐cell lymphoma 2 family proteins, and pharmacology of AZD5991, a potent small‐molecule inhibitor of myeloid cell leukemia 1 (Mcl‐1). The model was calibrated using in vitro viability data for the MV‐4‐11 acute myeloid leukemia cell line under continuous incubation for 72 hours at concentrations of 0.03–30 μM. Using a virtual screen, we identified two schedules as having significantly different predicted efficacy and showed experimentally that a “short” schedule (treating cells for 6 of 24 hours) is significantly better able to maintain the rate of cell kill during treatment than a “long” schedule (18 of 24 hours). This work suggests that resistance can be driven by heterogeneity in protein expression of Mcl‐1 alone without requiring mutation or resistant subclones and demonstrates the utility of mathematical models in efficiently identifying regimens for experimental exploration.
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Affiliation(s)
- Ardeshir Goliaei
- Drug Metabolism and Pharmacokinetics (DMPK), Oncology R&D, AstraZeneca, Waltham, Massachusetts, USA.,Novartis Institutes for Biomedical Research, Cambridge, Massachusetts, USA
| | - Haley A Woods
- Bioscience, Oncology R&D, AstraZeneca, Waltham, Massachusetts, USA
| | - Adriana E Tron
- Bioscience, Oncology R&D, AstraZeneca, Waltham, Massachusetts, USA.,Agios Pharmaceuticals, Cambridge, Massachusetts, USA
| | | | - J Paul Secrist
- Bioscience, Oncology R&D, AstraZeneca, Waltham, Massachusetts, USA
| | - Douglas Ferguson
- Drug Metabolism and Pharmacokinetics (DMPK), Oncology R&D, AstraZeneca, Waltham, Massachusetts, USA
| | - Lisa Drew
- Bioscience, Oncology R&D, AstraZeneca, Waltham, Massachusetts, USA
| | - Adrian J Fretland
- Drug Metabolism and Pharmacokinetics (DMPK), Oncology R&D, AstraZeneca, Waltham, Massachusetts, USA
| | - Bree B Aldridge
- Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, Massachusetts, USA.,Department of Biomedical Engineering, Tufts University, Medford, Massachusetts, USA
| | - Francis D Gibbons
- Drug Metabolism and Pharmacokinetics (DMPK), Oncology R&D, AstraZeneca, Waltham, Massachusetts, USA
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49
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Emerging connectivity of programmed cell death pathways and its physiological implications. Nat Rev Mol Cell Biol 2020; 21:678-695. [PMID: 32873928 DOI: 10.1038/s41580-020-0270-8] [Citation(s) in RCA: 429] [Impact Index Per Article: 107.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/03/2020] [Indexed: 12/17/2022]
Abstract
The removal of functionally dispensable, infected or potentially neoplastic cells is driven by programmed cell death (PCD) pathways, highlighting their important roles in homeostasis, host defence against pathogens, cancer and a range of other pathologies. Several types of PCD pathways have been described, including apoptosis, necroptosis and pyroptosis; they employ distinct molecular and cellular processes and differ in their outcomes, such as the capacity to trigger inflammatory responses. Recent genetic and biochemical studies have revealed remarkable flexibility in the use of these PCD pathways and indicate a considerable degree of plasticity in their molecular regulation; for example, despite having a primary role in inducing pyroptosis, inflammatory caspases can also induce apoptosis, and conversely, apoptotic stimuli can trigger pyroptosis. Intriguingly, this flexibility is most pronounced in cellular responses to infection, while apoptosis is the dominant cell death process through which organisms prevent the development of cancer. In this Review, we summarize the mechanisms of the different types of PCD and describe the physiological and pathological processes that engage crosstalk between these pathways, focusing on infections and cancer. We discuss the intriguing notion that the different types of PCD could be seen as a single, coordinated cell death system, in which the individual pathways are highly interconnected and can flexibly compensate for one another.
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50
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Lu X, Liu YC, Orvig C, Liang H, Chen ZF. Discovery of a Copper-Based Mcl-1 Inhibitor as an Effective Antitumor Agent. J Med Chem 2020; 63:9154-9167. [PMID: 32794745 DOI: 10.1021/acs.jmedchem.9b02047] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Myeloid cell leukemia 1 (Mcl-1), which belongs to the Bcl-2 family of prosurvival proteins, is a key regulator of cancer cell survival. To date, few drug-like Mcl-1 inhibitors have been reported. Herein, we report the preparation of 10 copper complexes with 9-substituted β-carboline ligands that act as metal-based Mcl-1 inhibitors. Complex 14 was identified as a potent and selective Mcl-1 inhibitor with strong in vitro antitumor activity. Mechanistic studies demonstrated that complex 14 disrupted Mcl-1-Bax/Bak heterodimerization and induced Bax/Bak-dependent apoptosis. In addition, complex 14 significantly (P < 0.001) inhibited tumor growth in vivo, induced tumor necrosis, and extended survival time in an NCI-H460 xenograft model. Furthermore, complex 14 showed no apparent toxicity in mice. Together, these findings indicate that complex 14 is a copper-based Mcl-1 inhibitor with high efficacy and low toxicity that could be developed for the treatment of Mcl-1-related cancers.
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Affiliation(s)
- Xing Lu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, Guilin 541004, P. R. China
| | - Yan-Cheng Liu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, Guilin 541004, P. R. China
| | - Chris Orvig
- Department of Chemistry, Faculty of Science, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T1Z1, Canada
| | - Hong Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, Guilin 541004, P. R. China
| | - Zhen-Feng Chen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmacy, Guangxi Normal University, Guilin 541004, P. R. China
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