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Neri P, Leblay N, Lee H, Gulla A, Bahlis NJ, Anderson KC. Just scratching the surface: novel treatment approaches for multiple myeloma targeting cell membrane proteins. Nat Rev Clin Oncol 2024; 21:590-609. [PMID: 38961233 DOI: 10.1038/s41571-024-00913-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/05/2024] [Indexed: 07/05/2024]
Abstract
A better understanding of the roles of the adaptive and innate immune systems in the oncogenesis of cancers including multiple myeloma (MM) has led to the development of novel immune-based therapies. B cell maturation antigen (BCMA), G protein-coupled receptor family C group 5 member D (GPRC5D) and Fc receptor-like protein 5 (FcRL5, also known as FcRH5) are cell-surface transmembrane proteins expressed by plasma cells, and have been identified as prominent immunotherapeutic targets in MM, with promising activity demonstrated in patients with heavily pretreated relapsed and/or refractory disease. Indeed, since 2020, antibody-drug conjugates, bispecific T cell engagers and autologous chimeric antigen receptor T cells targeting BCMA or GPRC5D have been approved for the treatment of relapsed and/or refractory MM. However, responses to these therapies are not universal, and acquired resistance invariably occurs. In this Review, we discuss the various immunotherapeutic approaches targeting BCMA, GPRC5D and FcRL5 that are currently either available or in clinical development for patients with MM. We also review the mechanisms underlying resistance to such therapies, and discuss potential strategies to overcome these mechanisms and improve patient outcomes.
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Affiliation(s)
- Paola Neri
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
| | - Noémie Leblay
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
| | - Holly Lee
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
| | - Annamaria Gulla
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Turin, Italy
| | - Nizar J Bahlis
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
| | - Kenneth C Anderson
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA.
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Letouzé E, Moreau P, Munshi N, Samur M, Minvielle S, Touzeau C. Mechanisms of resistance to bispecific T-cell engagers in multiple myeloma and their clinical implications. Blood Adv 2024; 8:2952-2959. [PMID: 38513088 PMCID: PMC11302375 DOI: 10.1182/bloodadvances.2023012354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/31/2024] [Accepted: 02/15/2024] [Indexed: 03/23/2024] Open
Abstract
ABSTRACT Bispecific T-cell engagers (TCEs) are revolutionizing patient care in multiple myeloma (MM). These monoclonal antibodies, that redirect T cells against cancer cells, are now approved for the treatment of triple-class exposed relapsed/refractory MM (RRMM). They are currently tested in earlier lines of the disease, including in first line. Yet, primary resistance occurs in about one-third of patients with RRMM, and most responders eventually develop acquired resistance. Understanding the mechanisms of resistance to bispecific TCE is thus essential to improve immunotherapies in MM. Here, we review recent studies investigating the clinical and molecular determinants of resistance to bispecific TCE. Resistance can arise from tumor-intrinsic or tumor-extrinsic mechanisms. Tumor-intrinsic resistance involves various alterations leading to the loss of the target antigen, such as chromosome deletions, point mutations, or epigenetic silencing. Loss of major histocompatibility complex (MHC) class I, preventing MHC class I: T-cell receptor (TCR) costimulatory signaling, was also reported. Tumor-extrinsic resistance involves abundant exhausted T-cell clones and several factors generating an immunosuppressive microenvironment. Importantly, some resistance mechanisms impair response to 1 TCE while preserving the efficacy of others. We next discuss the clinical implications of these findings. Monitoring the status of target antigens in tumor cells and their immune environment will be key to select the most appropriate TCE for each patient and to design combination and sequencing strategies for immunotherapy in MM.
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Affiliation(s)
- Eric Letouzé
- Nantes Université, INSERM, CNRS, Université d'Angers, Centre de Recherche en Cancérologie et Immunologie Nantes Angers, Nantes, France
- University Hospital Hôtel-Dieu, Nantes, France
| | - Philippe Moreau
- Nantes Université, INSERM, CNRS, Université d'Angers, Centre de Recherche en Cancérologie et Immunologie Nantes Angers, Nantes, France
- Hematology Department, University Hospital Hôtel-Dieu, Nantes, France
| | - Nikhil Munshi
- Department of Data Science, Dana-Farber Cancer Institute, Boston, MA
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Mehmet Samur
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
- Veterans Affairs Boston Healthcare System, Boston, MA
| | - Stéphane Minvielle
- Nantes Université, INSERM, CNRS, Université d'Angers, Centre de Recherche en Cancérologie et Immunologie Nantes Angers, Nantes, France
- University Hospital Hôtel-Dieu, Nantes, France
| | - Cyrille Touzeau
- Nantes Université, INSERM, CNRS, Université d'Angers, Centre de Recherche en Cancérologie et Immunologie Nantes Angers, Nantes, France
- Hematology Department, University Hospital Hôtel-Dieu, Nantes, France
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Mohan M, Van Oekelen O, Akhtar OS, Cohen A, Parekh S. Charting the Course: Sequencing Immunotherapy for Multiple Myeloma. Am Soc Clin Oncol Educ Book 2024; 44:e432204. [PMID: 38875506 DOI: 10.1200/edbk_432204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2024]
Abstract
Multiple chimeric antigen receptor (CAR) T-cell and bispecific antibody (bsAb) therapies have been approved, demonstrating impressive clinical efficacy in relapsed/refractory multiple myeloma (MM). Currently, these treatment share overlapping approval indications in the relapsed/refractory space, highlighting the importance of optimal selection and sequencing to maximize clinical efficacy. For patients previously unexposed to T-cell-directed therapies, several factors should be weighed when both options are available. These factors include access and logistical challenges associated with CAR T-cell therapy, disease-specific factors such as tempo of disease relapse, in addition to patient-specific factors such as frailty, and distinct toxicity profiles across these agents. Sequential therapy, whether it involves CAR T-cell therapy followed by bsAb or vice versa, has demonstrated clinical efficacy. When sequencing these agents, it is crucial to consider various factors that contribute to treatment resistance with careful selection of treatments for subsequent therapy in order to achieve favorable long-term patient outcomes.
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Affiliation(s)
- Meera Mohan
- Division of Hematology/Oncology, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI
| | - Oliver Van Oekelen
- Department of Medicine, Hematology and Medical Oncology, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Othman Salim Akhtar
- Division of Hematology/Oncology, Department of Medicine, Medical College of Wisconsin, Milwaukee, WI
| | - Adam Cohen
- Department of Medicine, Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA
| | - Samir Parekh
- Department of Medicine, Hematology and Medical Oncology, Icahn School of Medicine at Mount Sinai, New York, NY
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Papadimitriou M, Ahn S, Diamond B, Lee H, McIntyre J, Truger M, Durante M, Ziccheddu B, Landgren O, Rasche L, Bahlis NJ, Neri P, Maura F. Timing antigenic escape in multiple myeloma treated with T-cell redirecting immunotherapies. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.22.595383. [PMID: 38826396 PMCID: PMC11142165 DOI: 10.1101/2024.05.22.595383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
Recent data highlight genomic events driving antigen escape as a recurring cause of chimeric antigen receptor T-cell (CAR-T) and bispecific T-cell engager (TCE) resistance in multiple myeloma (MM). Yet, it remains unclear if these events, leading to clonal dominance at progression, result from acquisition under treatment selection or selection of pre-existing undetectable clones. This differentiation gains importance as these immunotherapies progress to earlier lines of treatment, prompting the need for innovative diagnostic testing to detect these events early on. By reconstructing phylogenetic trees and exploring chemotherapy mutational signatures as temporal barcodes in 11 relapsed refractory MM patients with available whole genome sequencing data before and after CART/TCE treatment, we demonstrated that somatic antigen escape mechanisms for BCMA- and GPRC5D-targeting therapies are acquired post-diagnosis, likely during CART/TCE treatment. Longitudinal tracking of these mutations using digital PCR in 4 patients consistently showed that genomic events promoting antigen escape were not detectable during the initial months of therapy but began to emerge nearly 1 year post therapy initiation. This finding reduces the necessity for a diagnostic panel to identify these events before CART/TCE. Instead, it underscores the importance of surveillance and identifying patients at higher risk of acquiring these events.
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Affiliation(s)
- Marios Papadimitriou
- Myeloma Division, University of Miami, Sylvester Comprehensive Cancer Center, Miami, FL, USA
| | - Sungwoo Ahn
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
| | - Benjamin Diamond
- Myeloma Division, University of Miami, Sylvester Comprehensive Cancer Center, Miami, FL, USA
| | - Holly Lee
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
| | - John McIntyre
- Precision Oncology Hub Laboratory, Tom Baker Cancer Centre, Calgary, Alberta, Canada
| | | | - Michael Durante
- Myeloma Division, University of Miami, Sylvester Comprehensive Cancer Center, Miami, FL, USA
| | - Bachisio Ziccheddu
- Myeloma Division, University of Miami, Sylvester Comprehensive Cancer Center, Miami, FL, USA
| | - Ola Landgren
- Myeloma Division, University of Miami, Sylvester Comprehensive Cancer Center, Miami, FL, USA
| | - Leo Rasche
- Department of Internal Medicine, University Hospital of Wu rzburg, Wu rzburg, Germany
| | - Nizar J. Bahlis
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
| | - Paola Neri
- Arnie Charbonneau Cancer Institute, University of Calgary, Calgary, Alberta, Canada
| | - Francesco Maura
- Myeloma Division, University of Miami, Sylvester Comprehensive Cancer Center, Miami, FL, USA
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Costa BA, Ortiz RJ, Lesokhin AM, Richter J. Soluble B-cell maturation antigen in multiple myeloma. Am J Hematol 2024; 99:727-738. [PMID: 38270277 DOI: 10.1002/ajh.27225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/19/2023] [Accepted: 01/08/2024] [Indexed: 01/26/2024]
Abstract
B-cell maturation antigen (BCMA) has emerged as a promising immunotherapeutic target in multiple myeloma (MM) management, with the successive approval of antibody-drug conjugates, bispecific antibodies, and chimeric antigen receptor T-cell therapies directed to this membrane receptor. Soluble BCMA (sBCMA), a truncated version produced through gamma-secretase cleavage, can be quantified in serum/plasma samples from patients with MM via electrochemiluminescence, fluorescence, or enzyme-linked immunosorbent assays, as well as through mass spectrometry-based proteomics. Besides its short serum half-life and independence from kidney function, sBCMA represents a reliable and convenient tool for MM monitoring in patients with nonsecretory or oligosecretory disease. Numerous studies have suggested a potential utility of this bioanalyte in the risk stratification of premalignant plasma cell disorders, diagnosis and prognostication of MM, and response evaluation following anti-myeloma therapies. In short, sBCMA might be the "Swiss army knife" of MM laboratory testing, but is it ready for prime time?
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Affiliation(s)
- Bruno Almeida Costa
- Department of Medicine, Mount Sinai Morningside and West, Icahn School of Medicine at Mount Sinai, New York, New York, USA
- Department of Medicine, Cellular Therapy Service, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Ricardo J Ortiz
- Brookdale Department of Geriatrics and Palliative Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Alexander M Lesokhin
- Department of Medicine, Cellular Therapy Service, Memorial Sloan Kettering Cancer Center, New York, New York, USA
- Department of Medicine, Myeloma Service, Memorial Sloan Kettering Cancer, New York, New York, USA
- Department of Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Joshua Richter
- Division of Hematology and Medical Oncology, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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