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Hagos YB, Lecat CS, Patel D, Mikolajczak A, Castillo SP, Lyon EJ, Foster K, Tran TA, Lee LS, Rodriguez-Justo M, Yong KL, Yuan Y. Deep Learning Enables Spatial Mapping of the Mosaic Microenvironment of Myeloma Bone Marrow Trephine Biopsies. Cancer Res 2024; 84:493-508. [PMID: 37963212 PMCID: PMC10831337 DOI: 10.1158/0008-5472.can-22-2654] [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: 09/02/2022] [Revised: 12/18/2022] [Accepted: 11/07/2023] [Indexed: 11/16/2023]
Abstract
Bone marrow trephine biopsy is crucial for the diagnosis of multiple myeloma. However, the complexity of bone marrow cellular, morphologic, and spatial architecture preserved in trephine samples hinders comprehensive evaluation. To dissect the diverse cellular communities and mosaic tissue habitats, we developed a superpixel-inspired deep learning method (MoSaicNet) that adapts to complex tissue architectures and a cell imbalance aware deep learning pipeline (AwareNet) to enable accurate detection and classification of rare cell types in multiplex immunohistochemistry images. MoSaicNet and AwareNet achieved an AUC of >0.98 for tissue and cellular classification on separate test datasets. Application of MoSaicNet and AwareNet enabled investigation of bone heterogeneity and thickness as well as spatial histology analysis of bone marrow trephine samples from monoclonal gammopathies of undetermined significance (MGUS) and from paired newly diagnosed and posttreatment multiple myeloma. The most significant difference between MGUS and newly diagnosed multiple myeloma (NDMM) samples was not related to cell density but to spatial heterogeneity, with reduced spatial proximity of BLIMP1+ tumor cells to CD8+ cells in MGUS compared with NDMM samples. Following treatment of patients with multiple myeloma, there was a reduction in the density of BLIMP1+ tumor cells, effector CD8+ T cells, and regulatory T cells, indicative of an altered immune microenvironment. Finally, bone heterogeneity decreased following treatment of patients with multiple myeloma. In summary, deep learning-based spatial mapping of bone marrow trephine biopsies can provide insights into the cellular topography of the myeloma marrow microenvironment and complement aspirate-based techniques. SIGNIFICANCE Spatial analysis of bone marrow trephine biopsies using histology, deep learning, and tailored algorithms reveals the bone marrow architectural heterogeneity and evolution during myeloma progression and treatment.
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Affiliation(s)
- Yeman Brhane Hagos
- Centre for Evolution and Cancer and Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom
| | - Catherine S.Y. Lecat
- Research Department of Haematology, University College London Cancer Institute, London, United Kingdom
| | - Dominic Patel
- Research Department of Pathology, University College London Cancer Institute, London, United Kingdom
| | - Anna Mikolajczak
- Research Department of Haematology, University College London Cancer Institute, London, United Kingdom
| | - Simon P. Castillo
- Centre for Evolution and Cancer and Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom
| | - Emma J. Lyon
- Research Department of Haematology, University College London Cancer Institute, London, United Kingdom
| | - Kane Foster
- Research Department of Haematology, University College London Cancer Institute, London, United Kingdom
| | - Thien-An Tran
- Research Department of Haematology, University College London Cancer Institute, London, United Kingdom
| | - Lydia S.H. Lee
- Research Department of Haematology, University College London Cancer Institute, London, United Kingdom
| | - Manuel Rodriguez-Justo
- Research Department of Pathology, University College London Cancer Institute, London, United Kingdom
| | - Kwee L. Yong
- Research Department of Haematology, University College London Cancer Institute, London, United Kingdom
| | - Yinyin Yuan
- Centre for Evolution and Cancer and Division of Molecular Pathology, The Institute of Cancer Research, London, United Kingdom
- Centre for Molecular Pathology, Royal Marsden Hospital, London, United Kingdom
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Chen H, Wang X, Wang Y, Chang X. What happens to regulatory T cells in multiple myeloma. Cell Death Discov 2023; 9:468. [PMID: 38129374 PMCID: PMC10739837 DOI: 10.1038/s41420-023-01765-8] [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: 08/29/2023] [Revised: 12/03/2023] [Accepted: 12/06/2023] [Indexed: 12/23/2023] Open
Abstract
Abnormal tumor microenvironment and immune escape in multiple myeloma (MM) are associated with regulatory T cells (Tregs), which play an important role in maintaining self-tolerance and regulating the overall immune response to infection or tumor cells. In patients with MM, there are abnormalities in the number, function and distribution of Tregs, and these abnormalities may be related to the disease stage, risk grade and prognosis of patients. During the treatment, Tregs have different responses to various treatment regiments, thus affecting the therapeutic effect of MM. It is also possible to predict the therapeutic response by observing the changes of Tregs. In addition to the above, we reviewed the application of Tregs in the treatment of MM. In conclusion, there is still much room for research on the mechanism and application of Tregs in MM.
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Affiliation(s)
- Huixian Chen
- Medical Research Center, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
- Department of Hematology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Xueling Wang
- Medical Research Center, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
- Department of Gastroenterology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Yan Wang
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, 250012, China
| | - Xiaotian Chang
- Medical Research Center, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China.
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Liu Z, Zhao X, Shen H, Liu X, Xu X, Fu R. Cellular immunity in the era of modern multiple myeloma therapy. Int J Cancer 2023; 153:1436-1447. [PMID: 37306091 DOI: 10.1002/ijc.34609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 03/24/2023] [Accepted: 04/03/2023] [Indexed: 06/13/2023]
Abstract
Multiple myeloma (MM) is a relapsing clonal plasma cell malignancy and incurable thus far. With the increasing understanding of myeloma, highlighting the critical importance of the immune system in the pathogenesis of MM is essential. The immune changes in MM patients after treatment are associated with prognosis. In this review, we summarize currently available MM therapies and discuss how they affect cellular immunity. We find that the modern anti-MM treatments enhance antitumour immune responses. A deeper understanding of the therapeutic activity of individual drugs offers more effective treatment approaches that enhance the beneficial immunomodulatory effects. Furthermore, we show that the immune changes after treatment in MM patients can provide useful prognostic marker. Analysing cellular immune responses offers new perspectives for evaluating clinical data and making comprehensive predictions for applying novel therapies in MM patients.
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Affiliation(s)
- Zhaoyun Liu
- Department of Hematology, Tianjin Medical University General Hospital, Heping District, Tianjin, China
| | - Xianghong Zhao
- Department of Hematology, Tianjin Medical University General Hospital, Heping District, Tianjin, China
| | - Hongli Shen
- Department of Hematology, Tianjin Medical University General Hospital, Heping District, Tianjin, China
| | - Xiaohan Liu
- Department of Hematology, Tianjin Medical University General Hospital, Heping District, Tianjin, China
| | - Xintong Xu
- Department of Hematology, Tianjin Medical University General Hospital, Heping District, Tianjin, China
| | - Rong Fu
- Department of Hematology, Tianjin Medical University General Hospital, Heping District, Tianjin, China
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Banerjee R, Cicero KI, Lee SS, Cowan AJ. Definers and drivers of functional high-risk multiple myeloma: insights from genomic, transcriptomic, and immune profiling. Front Oncol 2023; 13:1240966. [PMID: 37849816 PMCID: PMC10577204 DOI: 10.3389/fonc.2023.1240966] [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: 06/15/2023] [Accepted: 09/18/2023] [Indexed: 10/19/2023] Open
Abstract
Traditional prognostic models for newly diagnosed patients with multiple myeloma (MM), including International Staging System criteria and number of high-risk chromosomal abnormalities, are based on disease characteristics at diagnosis. However, the identification of patients at risk of more rapidly progressive MM is inherently a dynamic assessment. In a subset of patients with MM, adverse disease biology only becomes evident after the failure of first-line therapy. We define this entity as functional high-risk MM (FHRMM), encompassing relapse within 18 months of treatment initiation and/or within 12 months of frontline autologous stem cell transplantation. FHRMM is not adequately captured by traditional prognostic models, and there is a need for better understanding of mechanisms or risk factors for early relapse or progression. In this review, we explore potential definitions of FHRMM before delving into its underlying drivers based on genetic, transcriptomic, and immune cell profiling studies. Emerging data suggest that specific features of both myeloma cells and immune cells can enable the FHRMM phenotype. We conclude our review by discussing ongoing and future studies that seek to identify and intervene upon patients with FHRMM preemptively.
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Affiliation(s)
- Rahul Banerjee
- Division of Hematology and Oncology, Department of Medicine, University of Washington, Seattle, WA, United States
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, United States
| | - Kara I. Cicero
- Division of Hematology and Oncology, Department of Medicine, University of Washington, Seattle, WA, United States
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, United States
| | - Sarah S. Lee
- Division of Myeloma, Department of Hematology & Hematopoietic Cell Transplantation, City of Hope, CA, United States
| | - Andrew J. Cowan
- Division of Hematology and Oncology, Department of Medicine, University of Washington, Seattle, WA, United States
- Clinical Research Division, Fred Hutchinson Cancer Center, Seattle, WA, United States
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Chen M, Zhu J, Yang X, Yao J, Liu Y, Liu Q. PD-1 and LAG-3-positive T cells are associated with clinical outcomes of relapsed/refractory multiple myeloma patients. Eur J Med Res 2022; 27:296. [PMID: 36529769 PMCID: PMC9761990 DOI: 10.1186/s40001-022-00923-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 12/01/2022] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVE To investigate the frequency of PD-1 and LAG-3-positive T cells in relapsed/refractory multiple myeloma (RRMM) patients and its clinical significance. METHODS This prospective observational study enrolled a total of 71 RRMM patients, as well as 70 MM patients (non-refractory) and 70 healthy individuals during January 2018 to March 2021. The frequency of circulating CD4+ and CD8+ T cells expressing PD-1 and LAG-3 was analyzed using flow cytometry. Serum cytokines of IL-6, IL-17, CRP, TNF-α and TGF-β were evaluated by enzyme linked immunosorbent assay (ELISA). RESULTS Significant higher 1-year mortality rate was found in RRMM patients compared with the MM patients. In both CD4+ and CD8+ T cells, the frequencies of PD-1+, LAG-3+ and PD-1+/LAG-3+ T cells were markedly higher in the RRMM patients and the deceased patients, compared with the MM patients and the survival patients, respectively. All cytokines were remarkably higher in RRMM and MM patients than in the healthy control, while only serum levels of IL-6 and IL-17 were markedly higher in RRMM patients compared with the MM patients. Positive correlation was observed among the IL-6, IL-17 and the frequencies of circulating T cells in both CD4+ and CD8+ T cells in RRMM and MM patients. The frequency of CD8+PD-1+LAG-3+ T cells showed the best sensitivity 82.61% and specificity 76.06% for diagnosis of RRMM using ROC curve. Meanwhile, the frequency of CD4+PD-1+ cells showed the best sensitivity 84.00% and specificity 97.35% for prediction of patients' mortality by ROC curve. The frequencies of CD4+PD-1+, CD8+PD-1+/LAG-3+, as well as IL-6, IL-17 and TNF-α were found as risk factors for incidence of RRMM in all MM patients. CONCLUSION The frequency of PD-1 and LAG-3-positive T cells is associated with the clinical severity and inflammation in RRMM patients, which may also serve as potential biomarkers for its diagnosis.
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Affiliation(s)
- Ming Chen
- grid.411634.50000 0004 0632 4559Department of Hematology, Changshu No.2 People’s Hospital, No.18, Taishan Road, Changshu, 21550 Jiangsu Province China
| | - Jinlian Zhu
- grid.411634.50000 0004 0632 4559Department of Oncology, Changshu No.2 People’s Hospital, No.18, Taishan Road, Changshu, 21550 Jiangsu Province China
| | - Xuedong Yang
- grid.411634.50000 0004 0632 4559Department of Hematology, Changshu No.2 People’s Hospital, No.18, Taishan Road, Changshu, 21550 Jiangsu Province China
| | - Jianxin Yao
- grid.411634.50000 0004 0632 4559Department of Hematology, Changshu No.2 People’s Hospital, No.18, Taishan Road, Changshu, 21550 Jiangsu Province China
| | - Yuqing Liu
- grid.452853.dDepartment of Hematology, Changshu No.1 People’s Hospital, No.1 Shuyuan Road, Changshu, 21550 Jiangsu Province China
| | - Qiang Liu
- grid.411634.50000 0004 0632 4559Department of Hematology, Changshu No.2 People’s Hospital, No.18, Taishan Road, Changshu, 21550 Jiangsu Province China
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Cho SF, Xing L, Anderson KC, Tai YT. Promising Antigens for the New Frontier of Targeted Immunotherapy in Multiple Myeloma. Cancers (Basel) 2021; 13:cancers13236136. [PMID: 34885245 PMCID: PMC8657018 DOI: 10.3390/cancers13236136] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 11/29/2021] [Accepted: 12/03/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Defining the specificity and biological sequalae induced by receptors differentiated expressed in multiple myeloma cells are critical for the development of effective immunotherapies based on monoclonal antibodies. Ongoing studies continue to discover new antigens with superior tumor selectivity and defined function in regulating the pathophysiology of myeloma cells directly or indirectly in the immunosuppressive bone marrow microenvironment. Meanwhile, it is urgent to identify mechanisms of immune resistance and design more potent immunotherapies, alone and/or with best combination partners to further prolong anti-MM immunity. Abstract The incorporation of novel agents in recent treatments in multiple myeloma (MM) has improved the clinical outcome of patients. Specifically, the approval of monoclonal antibody (MoAb) against CD38 (daratumumab) and SLAMF7 (elotuzumab) in relapsed and refractory MM (RRMM) represents an important milestone in the development of targeted immunotherapy in MM. These MoAb-based agents significantly induce cytotoxicity of MM cells via multiple effector-dependent mechanisms and can further induce immunomodulation to repair a dysfunctional tumor immune microenvironment. Recently, targeting B cell maturation antigen (BCMA), an even MM-specific antigen, has shown high therapeutic activities by chimeric antigen receptor T cells (CAR T), antibody-drug conjugate (ADC), bispecific T-cell engager (BiTE), as well as bispecific antibody (BiAb), with some already approved for heavily pretreated RRMM patients. New antigens, such as orphan G protein-coupled receptor class C group 5 member D (GPRC5D) and FcRH5, were identified and rapidly moved to ongoing clinical studies. We here summarized the pathobiological function of key MM antigens and the status of the corresponding immunotherapies. The potential challenges and emerging treatment strategies are also discussed.
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Affiliation(s)
- Shih-Feng Cho
- Jerome Lipper Multiple Myeloma Center, Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, 450 Brookline Avenue, Boston, MA 02215, USA; (S.-F.C.); (K.C.A.)
- Division of Hematology & Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Lijie Xing
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China;
| | - Kenneth C. Anderson
- Jerome Lipper Multiple Myeloma Center, Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, 450 Brookline Avenue, Boston, MA 02215, USA; (S.-F.C.); (K.C.A.)
| | - Yu-Tzu Tai
- Jerome Lipper Multiple Myeloma Center, Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, 450 Brookline Avenue, Boston, MA 02215, USA; (S.-F.C.); (K.C.A.)
- Correspondence: ; Tel.: +1-617-632-3875; Fax: +1-617-632-2140
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Casey M, Nakamura K. The Cancer-Immunity Cycle in Multiple Myeloma. Immunotargets Ther 2021; 10:247-260. [PMID: 34295843 PMCID: PMC8291851 DOI: 10.2147/itt.s305432] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 07/10/2021] [Indexed: 12/23/2022] Open
Abstract
Multiple myeloma is a plasma cell malignancy that primarily affects the elderly. The global burden of multiple myeloma is increasing in many countries due to an aging population. Despite recent advances in therapy, myeloma remains an incurable disease, highlighting the pressing need for new therapies. Accumulating evidence supports that triggering the host immune system is a critical therapeutic mechanism of action by various anti-myeloma therapies. These anti-myeloma therapies include proteasome inhibitors, immunomodulatory drugs, monoclonal antibody drugs, and autologous stem cell transplantation. More recently, T cell-based immunotherapeutics (including chimeric antigen receptor T-cell therapies and bispecific T-cell engagers) have shown dramatic clinical benefits in patients with relapsed or refractory multiple myeloma. While immune-based therapeutic approaches are recognized as key modalities for improved clinical outcomes in myeloma patients, understanding the immune system in multiple myeloma patients remains elusive. The cancer-immunity cycle is a conceptual framework illustrating how immune cells recognize and eliminate tumor cells. Based on this framework, this review will provide an overview of the immune system in multiple myeloma patients and discuss potential therapeutic approaches to stimulate anti-tumor immunity.
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Affiliation(s)
- Mika Casey
- Immune Targeting in Blood Cancers Laboratory, QIMR Berghofer Medical Research Institute, Herston, 4006, Australia
| | - Kyohei Nakamura
- Immune Targeting in Blood Cancers Laboratory, QIMR Berghofer Medical Research Institute, Herston, 4006, Australia
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