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Carlet M, Schmelz K, Vergalli J, Herold T, Senft D, Jurinovic V, Hoffmann T, Proba J, Weichert N, Junghanß C, Roth M, Eschenburg G, Barz M, Henze G, Eckert C, Eggert A, Zuber J, Hundsdoerfer P, Jeremias I. X-linked inhibitor of apoptosis protein represents a promising therapeutic target for relapsed/refractory ALL. EMBO Mol Med 2022; 15:e14557. [PMID: 36416169 PMCID: PMC9832863 DOI: 10.15252/emmm.202114557] [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: 05/14/2021] [Revised: 10/23/2022] [Accepted: 10/28/2022] [Indexed: 11/25/2022] Open
Abstract
Acute lymphoblastic leukemia (ALL) represents the most frequent malignancy in children, and relapse/refractory (r/r) disease is difficult to treat, both in children and adults. In search for novel treatment options against r/r ALL, we studied inhibitor of apoptosis proteins (IAP) and Smac mimetics (SM). SM-sensitized r/r ALL cells towards conventional chemotherapy, even upon resistance against SM alone. The combination of SM and chemotherapy-induced cell death via caspases and PARP, but independent from cIAP-1/2, RIPK1, TNFα or NF-κB. Instead, XIAP was identified to mediate SM effects. Molecular manipulation of XIAP in vivo using microRNA-30 flanked shRNA expression in cell lines and patient-derived xenograft (PDX) models of r/r ALL mimicked SM effects and intermediate XIAP knockdown-sensitized r/r ALL cells towards chemotherapy-induced apoptosis. Interestingly, upon strong XIAP knockdown, PDX r/r ALL cells were outcompeted in vivo, even in the absence of chemotherapy. Our results indicate a yet unknown essential function of XIAP in r/r ALL and reveal XIAP as a promising therapeutic target for r/r ALL.
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Affiliation(s)
- Michela Carlet
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Zentrum MünchenGerman Center for Environmental Health (HMGU)MunichGermany,Department of Biotechnology and Food EngineeringMCI, The Entrepreneur SchoolInnsbruckAustria
| | - Karin Schmelz
- Department of Pediatric Oncology/HematologyCharité‐UniversitätsmedizinBerlinGermany,German Cancer Consortium (DKTK)BerlinGermany
| | - Jenny Vergalli
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Zentrum MünchenGerman Center for Environmental Health (HMGU)MunichGermany
| | - Tobias Herold
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Zentrum MünchenGerman Center for Environmental Health (HMGU)MunichGermany,Laboratory for Leukemia Diagnostics, Department of Medicine IIIUniversity Hospital, LMU MunichMunichGermany,German Cancer Consortium (DKTK), Partnering Site MunichMunichGermany
| | - Daniela Senft
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Zentrum MünchenGerman Center for Environmental Health (HMGU)MunichGermany
| | - Vindi Jurinovic
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Zentrum MünchenGerman Center for Environmental Health (HMGU)MunichGermany,Laboratory for Leukemia Diagnostics, Department of Medicine IIIUniversity Hospital, LMU MunichMunichGermany,Department of Pediatrics, Dr. von Hauner Children's HospitalUniversity Hospital, LMUMunichGermany
| | - Thomas Hoffmann
- Research Institute of Molecular Pathology (IMP)ViennaAustria
| | - Jutta Proba
- Department of Pediatric Oncology/HematologyCharité‐UniversitätsmedizinBerlinGermany
| | - Nina Weichert
- Department of Pediatric Oncology/HematologyCharité‐UniversitätsmedizinBerlinGermany
| | - Christian Junghanß
- Department of Medicine, Clinic III – Hematology, Oncology, Palliative MedicineRostock University Medical CenterRostockGermany
| | - Mareike Roth
- Research Institute of Molecular Pathology (IMP)ViennaAustria
| | - Georg Eschenburg
- Department of Pediatric SurgeryUniversity Medical Center Hamburg‐EppendorfHamburgGermany
| | - Malwine Barz
- University Children's Hospital ZurichZurichSwitzerland
| | - Günter Henze
- Department of Pediatric Oncology/HematologyCharité‐UniversitätsmedizinBerlinGermany
| | - Cornelia Eckert
- Department of Pediatric Oncology/HematologyCharité‐UniversitätsmedizinBerlinGermany
| | - Angelika Eggert
- Department of Pediatric Oncology/HematologyCharité‐UniversitätsmedizinBerlinGermany
| | - Johannes Zuber
- Research Institute of Molecular Pathology (IMP)ViennaAustria
| | - Patrick Hundsdoerfer
- Department of Pediatric Oncology/HematologyCharité‐UniversitätsmedizinBerlinGermany,Berlin Institute of HealthBerlinGermany,Department of PediatricsHelios Klinikum Berlin‐BuchBerlinGermany
| | - Irmela Jeremias
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Zentrum MünchenGerman Center for Environmental Health (HMGU)MunichGermany,German Cancer Consortium (DKTK), Partnering Site MunichMunichGermany,Department of Pediatrics, Dr. von Hauner Children's HospitalUniversity Hospital, LMUMunichGermany
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Khateb A, Deshpande A, Feng Y, Finlay D, Lee JS, Lazar I, Fabre B, Li Y, Fujita Y, Zhang T, Yin J, Pass I, Livneh I, Jeremias I, Burian C, Mason JR, Almog R, Horesh N, Ofran Y, Brown K, Vuori K, Jackson M, Ruppin E, Deshpande AJ, Ronai ZA. The ubiquitin ligase RNF5 determines acute myeloid leukemia growth and susceptibility to histone deacetylase inhibitors. Nat Commun 2021; 12:5397. [PMID: 34518534 PMCID: PMC8437979 DOI: 10.1038/s41467-021-25664-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Accepted: 08/18/2021] [Indexed: 12/12/2022] Open
Abstract
Acute myeloid leukemia (AML) remains incurable, largely due to its resistance to conventional treatments. Here, we find that increased abundance of the ubiquitin ligase RNF5 contributes to AML development and survival. High RNF5 expression in AML patient specimens correlates with poor prognosis. RNF5 inhibition decreases AML cell growth in culture, in patient-derived xenograft (PDX) samples and in vivo, and delays development of MLL-AF9-driven leukemogenesis in mice, prolonging their survival. RNF5 inhibition causes transcriptional changes that overlap with those seen upon histone deacetylase (HDAC)1 inhibition. RNF5 induces the formation of K29 ubiquitin chains on the histone-binding protein RBBP4, promoting its recruitment to and subsequent epigenetic regulation of genes involved in AML maintenance. Correspondingly, RNF5 or RBBP4 knockdown enhances AML cell sensitivity to HDAC inhibitors. Notably, low expression of both RNF5 and HDAC coincides with a favorable prognosis. Our studies identify an ERAD-independent role for RNF5, demonstrating that its control of RBBP4 constitutes an epigenetic pathway that drives AML, and highlight RNF5/RBBP4 as markers useful to stratify patients for treatment with HDAC inhibitors.
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Affiliation(s)
- Ali Khateb
- Technion Integrated Cancer Center, Faculty of Medicine, Technion Israel Institute of Technology, Haifa, Israel
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Anagha Deshpande
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Yongmei Feng
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Darren Finlay
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Joo Sang Lee
- Cancer Data Science Lab (CDSL), National Cancer Institute, National Institute of Health, Bethesda, MD, USA
| | - Ikrame Lazar
- Technion Integrated Cancer Center, Faculty of Medicine, Technion Israel Institute of Technology, Haifa, Israel
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Bertrand Fabre
- Technion Integrated Cancer Center, Faculty of Medicine, Technion Israel Institute of Technology, Haifa, Israel
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Yan Li
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Yu Fujita
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
- Division of Respiratory Medicine, Department of Internal Medicine, Jikei University School of Medicine, Tokyo, Japan
| | - Tongwu Zhang
- Laboratory of Translational Genomics, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Jun Yin
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Ian Pass
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Ido Livneh
- Technion Integrated Cancer Center, Faculty of Medicine, Technion Israel Institute of Technology, Haifa, Israel
| | - Irmela Jeremias
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Center Munich, German Center for Environmental Health, Munich, Germany
| | - Carol Burian
- Scripps MD Anderson Cancer Center, La Jolla, CA, USA
| | - James R Mason
- Scripps MD Anderson Cancer Center, La Jolla, CA, USA
| | - Ronit Almog
- Rambam Health Care Campus, Epidemiology Department and Biobank, Haifa, Israel
| | - Nurit Horesh
- Rambam Health Care Campus, Hematology and Bone marrow Transplantation Department, Haifa, Israel
| | - Yishai Ofran
- Technion Integrated Cancer Center, Faculty of Medicine, Technion Israel Institute of Technology, Haifa, Israel
- Rambam Health Care Campus, Hematology and Bone marrow Transplantation Department, Haifa, Israel
| | - Kevin Brown
- Laboratory of Translational Genomics, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Kristiina Vuori
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Michael Jackson
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Eytan Ruppin
- Cancer Data Science Lab (CDSL), National Cancer Institute, National Institute of Health, Bethesda, MD, USA
| | - Aniruddha J Deshpande
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Ze'ev A Ronai
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA.
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Endogenous TCR promotes in vivo persistence of CD19-CAR-T cells compared to a CRISPR/Cas9-mediated TCR knockout CAR. Blood 2021; 136:1407-1418. [PMID: 32483603 DOI: 10.1182/blood.2020005185] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 05/04/2020] [Indexed: 12/27/2022] Open
Abstract
Anti-CD19 chimeric antigen receptor (CAR) T cells showed significant antileukemic activity in B-precursor acute lymphoblastic leukemia (ALL). Allogeneic, HLA-mismatched off-the-shelf third-party donors may offer ideal fitness of the effector cells, but carry the risk of graft-versus-host disease. Knockout (KO) of the endogenous T-cell receptor (TCR) in CD19-CAR-T cells may be a promising solution. Here, we induced a CRISPR/Cas9-mediated KO of the TCRβ chain in combination with a second-generation retroviral CAR transduction including a 4-1BB costimulatory domain in primary T cells. This tandem engineering led to a highly functional population of TCR-KO-CAR-T cells with strong activation (CD25, interferon γ), proliferation, and specific killing upon CD19 target recognition. TCR-KO-CAR-T cells had a balanced phenotype of central memory and effector memory T cells. KO of the endogenous TCR in T cells strongly ablated alloreactivity in comparison with TCR-expressing T cells. In a patient-derived xenograft model of childhood ALL, TCR-KO-CAR-T cells clearly controlled CD19+ leukemia burden and improved survival in vivo. However, coexpression of endogenous TCR plus CAR led to superior persistence of T cells and significantly prolonged leukemia control in vivo, confirmed by a second in vivo model using the leukemia cell line NALM6. These results point toward an essential role of the endogenous TCR for longevity of the response at the price of alloreactivity. In conclusion, anti-CD19 CAR T cells with a CRISPR/Cas9-mediated TCR-KO are promising candidates for nonmatched third-party adoptive T-cell transfer with high antileukemic functionality in the absence of alloreactivity, but long-term persistence in vivo is better in the presence of the endogenous TCR.
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