1
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Montauti E, Oh DY, Fong L. CD4 + T cells in antitumor immunity. Trends Cancer 2024:S2405-8033(24)00157-2. [PMID: 39242276 DOI: 10.1016/j.trecan.2024.07.009] [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: 06/04/2024] [Revised: 07/24/2024] [Accepted: 07/25/2024] [Indexed: 09/09/2024]
Abstract
Advances in cancer immunotherapy have transformed cancer care and realized unprecedented responses in many patients. The growing arsenal of novel therapeutics - including immune checkpoint inhibition (ICI), adoptive T cell therapies (ACTs), and cancer vaccines - reflects the success of cancer immunotherapy. The therapeutic benefits of these treatment modalities are generally attributed to the enhanced quantity and quality of antitumor CD8+ T cell responses. Nevertheless, CD4+ T cells are now recognized to play key roles in both the priming and effector phases of the antitumor immune response. In addition to providing T cell help through co-stimulation and cytokine production, CD4+ T cells can also possess cytotoxicity either directly on MHC class II-expressing tumor cells or to other cells within the tumor microenvironment (TME). The presence of specific populations of CD4+ T cells, and their intrinsic plasticity, within the TME can represent an important determinant of clinical response to immune checkpoint inhibitors, vaccines, and chimeric antigen receptor (CAR) T cell therapies. Understanding how the antitumor functions of specific CD4+ T cell types are induced while limiting their protumorigenic attributes will enable more successful immunotherapies.
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Affiliation(s)
- Elena Montauti
- Division of Hematology/Oncology, Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - David Y Oh
- Division of Hematology/Oncology, Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Lawrence Fong
- Division of Hematology/Oncology, Department of Medicine, University of California San Francisco, San Francisco, CA, USA; Immunotherapy Integrated Research Center, Fred Hutchison Cancer Center, Seattle, WA, USA.
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2
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Bai B, Wise JF, Vodák D, Nakken S, Sharma A, Blaker YN, Brodtkorb M, Hilden V, Trøen G, Ren W, Lorenz S, Lawrence MS, Myklebost O, Kimby E, Pan-Hammarström Q, Steen CB, Meza-Zepeda LA, Beiske K, Smeland EB, Hovig E, Lingjærde OC, Holte H, Myklebust JH. Multi-omics profiling of longitudinal samples reveals early genomic changes in follicular lymphoma. Blood Cancer J 2024; 14:147. [PMID: 39191762 DOI: 10.1038/s41408-024-01124-5] [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: 01/19/2024] [Revised: 08/02/2024] [Accepted: 08/09/2024] [Indexed: 08/29/2024] Open
Abstract
Follicular lymphoma (FL) is the most common indolent type of B-cell non-Hodgkin lymphoma. Advances in treatment have improved overall survival, but early relapse or transformation to aggressive disease is associated with inferior outcome. To identify early genetic events and track tumor clonal evolution, we performed multi-omics analysis of 94 longitudinal biopsies from 44 FL patients; 22 with transformation (tFL) and 22 with relapse without transformation (nFL). Deep whole-exome sequencing confirmed recurrent mutations in genes encoding epigenetic regulators (CREBBP, KMT2D, EZH2, EP300), with similar mutational landscape in nFL and tFL patients. Calculation of genomic distances between longitudinal samples revealed complex evolutionary patterns in both subgroups. CREBBP and KMT2D mutations were identified as genetic events that occur early in the disease course, and cases with CREBBP KAT domain mutations had low risk of transformation. Gains in chromosomes 12 and 18 (TCF4), and loss in 6q were identified as early and stable copy number alterations. Identification of such early and stable genetic events may provide opportunities for early disease detection and disease monitoring. Integrative analysis revealed that tumors with EZH2 mutations exhibited reduced gene expression of numerous histone genes, including histone linker genes. This might contribute to the epigenetic dysregulation in FL.
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Affiliation(s)
- Baoyan Bai
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- KG Jebsen Centre for B-cell malignancies, Institute for Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Clinical Molecular Biology (EpiGen),, Akershus University Hospital, Lørenskog, Norway
| | - Jillian F Wise
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- KG Jebsen Centre for B-cell malignancies, Institute for Clinical Medicine, University of Oslo, Oslo, Norway
- Norwegian Cancer Genomics Consortium, CancerGenomics.no, Oslo, Norway
- Massachusetts General Hospital Cancer Center and Department of Pathology, Harvard Medical School, Charlestown, MA, USA
- Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - Daniel Vodák
- Norwegian Cancer Genomics Consortium, CancerGenomics.no, Oslo, Norway
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Sigve Nakken
- Norwegian Cancer Genomics Consortium, CancerGenomics.no, Oslo, Norway
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- Centre for Cancer Cell Reprogramming, Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
- Centre for Bioinformatics, University of Oslo, Oslo, Norway
| | - Ankush Sharma
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- KG Jebsen Centre for B-cell malignancies, Institute for Clinical Medicine, University of Oslo, Oslo, Norway
- Precision Immunotherapy Alliance, University of Oslo, Oslo, Norway
| | - Yngvild Nuvin Blaker
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- KG Jebsen Centre for B-cell malignancies, Institute for Clinical Medicine, University of Oslo, Oslo, Norway
| | - Marianne Brodtkorb
- KG Jebsen Centre for B-cell malignancies, Institute for Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Oncology, Division for Cancer Medicine, Oslo University Hospital, Oslo, Norway
| | - Vera Hilden
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- KG Jebsen Centre for B-cell malignancies, Institute for Clinical Medicine, University of Oslo, Oslo, Norway
- Precision Immunotherapy Alliance, University of Oslo, Oslo, Norway
| | - Gunhild Trøen
- Department of Pathology, Oslo University Hospital, Oslo, Norway
| | - Weicheng Ren
- Division of Immunology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Susanne Lorenz
- Norwegian Cancer Genomics Consortium, CancerGenomics.no, Oslo, Norway
- Genomics Core Facility, Department of Core Facilities, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Michael S Lawrence
- Massachusetts General Hospital Cancer Center and Department of Pathology, Harvard Medical School, Charlestown, MA, USA
- Broad Institute of Harvard and MIT, Cambridge, MA, USA
| | - Ola Myklebost
- Norwegian Cancer Genomics Consortium, CancerGenomics.no, Oslo, Norway
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- Department for Clinical Science, University of Bergen, Bergen, Norway
| | - Eva Kimby
- Unit for Hematology and Department of Medicine at Karolinska Institutet, Huddinge, Stockholm, Sweden
| | - Qiang Pan-Hammarström
- Division of Immunology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Chloé B Steen
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- KG Jebsen Centre for B-cell malignancies, Institute for Clinical Medicine, University of Oslo, Oslo, Norway
- Precision Immunotherapy Alliance, University of Oslo, Oslo, Norway
| | - Leonardo A Meza-Zepeda
- Norwegian Cancer Genomics Consortium, CancerGenomics.no, Oslo, Norway
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- Genomics Core Facility, Department of Core Facilities, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Klaus Beiske
- Department of Pathology, Oslo University Hospital, Oslo, Norway
| | - Erlend B Smeland
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- KG Jebsen Centre for B-cell malignancies, Institute for Clinical Medicine, University of Oslo, Oslo, Norway
| | - Eivind Hovig
- Norwegian Cancer Genomics Consortium, CancerGenomics.no, Oslo, Norway
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- Centre for Bioinformatics, University of Oslo, Oslo, Norway
| | - Ole Christian Lingjærde
- KG Jebsen Centre for B-cell malignancies, Institute for Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Informatics, University of Oslo, Oslo, Norway
- Department of Cancer Genetics, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Harald Holte
- KG Jebsen Centre for B-cell malignancies, Institute for Clinical Medicine, University of Oslo, Oslo, Norway.
- Norwegian Cancer Genomics Consortium, CancerGenomics.no, Oslo, Norway.
- Department of Oncology, Division for Cancer Medicine, Oslo University Hospital, Oslo, Norway.
| | - June Helen Myklebust
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway.
- KG Jebsen Centre for B-cell malignancies, Institute for Clinical Medicine, University of Oslo, Oslo, Norway.
- Precision Immunotherapy Alliance, University of Oslo, Oslo, Norway.
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3
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Jamal E, Poynton E, Elbogdady M, Shamaa S, Okosun J. Prospects for liquid biopsy approaches in lymphomas. Leuk Lymphoma 2024:1-11. [PMID: 39126310 DOI: 10.1080/10428194.2024.2389210] [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: 06/26/2024] [Revised: 07/24/2024] [Accepted: 07/31/2024] [Indexed: 08/12/2024]
Abstract
Analytes within liquid biopsies have emerged as promising alternatives to traditional tissue biopsies for various malignancies, including lymphomas. This review explores the clinical applications of one such liquid biopsy analyte, circulating tumor DNA (ctDNA) in different types of lymphoma, focusing on its role in diagnosis, disease monitoring, and relapse detection. Advancements in next-generation sequencing (NGS) and machine learning have enhanced ctDNA analysis, offering a multi-omic approach to understanding tumor genetics. In lymphoma, ctDNA provides insights into tumor heterogeneity, aids in genetic profiling, and predicts treatment response. Recent studies demonstrate the prognostic value of ctDNA and its potential to improve patient outcomes by facilitating early disease detection and personalized treatment strategies Despite these advancements, challenges remain in optimizing sample collection, processing, assay sensitivity, and overall consensus workflows in order to facilitate integration into routine clinical practice.
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Affiliation(s)
- Esraa Jamal
- Centre of Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London, UK
- Clinical Haematology Unit, Oncology Center, Mansoura University, Mansoura, Egypt
| | - Edward Poynton
- Centre of Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London, UK
| | - Mohamed Elbogdady
- Clinical Haematology Unit, Oncology Center, Mansoura University, Mansoura, Egypt
| | - Sameh Shamaa
- Clinical Haematology Unit, Oncology Center, Mansoura University, Mansoura, Egypt
| | - Jessica Okosun
- Centre of Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London, UK
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4
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Choo A, Tuong ZK. Measuring single-cell immune clonality to track haematological cancers. Clin Transl Med 2024; 14:e1780. [PMID: 39162183 PMCID: PMC11333942 DOI: 10.1002/ctm2.1780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Accepted: 07/09/2024] [Indexed: 08/21/2024] Open
Abstract
While paediatric blood cancers are deadly, modern medical advances have enabled clinicians to measure levels of residual cancer cells to manage therapeutic strategies for patients. However, blood cancers, including leukaemias and lymphomas, are highly heterogeneous and is comprised of complex clonal populations that can hinder efforts in detecting the cancer cells as well as managing treatments. Furthermore, the tumour microenvironment is comprised of heterogenous immune dynamics that may be different between patients. High-throughput sequencing has constributed to new discoveries in genetic and transcriptomic alterations underpinning cancer, including blood cancers, and has changed how patients are monitored and managed. Here we discuss the recent efforts using single-cell approach, particularly on efforts to track clonal heterogenity of paediatric blood cancer and the underlying immune response, highlighting avenues for novel biomarker discovery that may have significant impact on clinical oncology practice.
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Affiliation(s)
- Amos Choo
- Ian Frazer Centre for Children's Immunotherapy Research, Child Health Research Centre, Faculty of MedicineThe University of QueenslandBrisbaneAustralia
| | - Zewen Kelvin Tuong
- Ian Frazer Centre for Children's Immunotherapy Research, Child Health Research Centre, Faculty of MedicineThe University of QueenslandBrisbaneAustralia
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5
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Jacobsen E, Plant A, Redd R, Armand P, McDonough M, Ihuoma U, Fisher DC, LaCasce A, Ritz J, Dranoff G, Freedman A. A phase I trial of vaccination with lethally irradiated lymphoma cells admixed with granulocyte-macrophage colony-stimulating factor secreting K562 cells for the treatment of follicular lymphoma. Leuk Lymphoma 2024:1-11. [PMID: 39034493 DOI: 10.1080/10428194.2024.2381651] [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: 03/28/2024] [Accepted: 07/14/2024] [Indexed: 07/23/2024]
Abstract
Several vaccine strategies have been tested for the treatment of follicular lymphoma; however, none have proven successful. In a phase I dose-escalation protocol, we developed a vaccine consisting of lethally irradiated whole lymphoma cells admixed with K562 cells that constitutively secreted granulocyte-macrophage colony-stimulating factor (GM-K562)(ClinicalTrials.gov identifier: NCT00487305). Patients with grade 1, 2, or 3 A follicular lymphoma were divided into 2 study tiers based on prior treatment and received a maximum of 6 vaccines. Vaccines contained dose levels of 5 × 106 or 1 × 107 GM-K562 cells admixed with autologous tumor cells at doses ranging from 1 × 105 to 5 × 107.Correlative studies did not demonstrate a significant immune response as assessed by delayed-type hypersensitivity reactions, B and T cell subsets, and natural killer cell subsets. Future vaccine studies should focus on identifying lymphoma-specific immunogenic proteins and modifying the vaccine immune adjuvant.
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Affiliation(s)
- Eric Jacobsen
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Ashley Plant
- Ann& Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
- Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Robert Redd
- Department of Data Science, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Philippe Armand
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Mikaela McDonough
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Udochukwu Ihuoma
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - David C Fisher
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Ann LaCasce
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Jerome Ritz
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Glenn Dranoff
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts, USA
| | - Arnold Freedman
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
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6
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Fend F, Quintanilla-Martinez L. Clonal evolution and relapse in early-stage follicular lymphoma - a tree with many branches †. J Pathol 2024; 263:271-274. [PMID: 38775014 DOI: 10.1002/path.6294] [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: 03/25/2024] [Accepted: 04/11/2024] [Indexed: 06/12/2024]
Abstract
Follicular lymphoma (FL) is an indolent B-cell neoplasm characterised by multistep evolution from premalignant precursor cells carrying the hallmark t(14;18) translocation in the majority of cases. In a new article in The Journal of Pathology, samples of relapsed early-stage FL - primary manifestation and relapse with or without transformation - initially treated with radiotherapy only, were studied for clonal relationships and evolution. Using somatic mutations and the rearranged immunoglobulin sequences as markers, the majority of paired lymphoma samples showed so-called branched evolution from a common, possibly premalignant progenitor cell, with both shared and private mutations. In addition, clonally unrelated cases were identified. This and previous studies with similar findings clearly document that relapse or transformation of FL in many instances not necessarily represents a linear progression of disease due to acquisition of additional mutations and therapy resistance, but rather new outgrowths derived from a pool of clonally related, long-lived, and low proliferating precursor cells, or even unrelated second neoplasms. © 2024 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Falko Fend
- Institute of Pathology and Neuropathology, University Hospital and Comprehensive Cancer Center Tuebingen, Tuebingen, Germany
| | - Leticia Quintanilla-Martinez
- Institute of Pathology and Neuropathology, University Hospital and Comprehensive Cancer Center Tuebingen, Tuebingen, Germany
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7
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Lee CY, Clatworthy MR, Withers DR. Decoding changes in tumor-infiltrating leukocytes through dynamic experimental models and single-cell technologies. Immunol Cell Biol 2024. [PMID: 38853634 DOI: 10.1111/imcb.12787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 05/13/2024] [Accepted: 05/13/2024] [Indexed: 06/11/2024]
Abstract
The ability to characterize immune cells and explore the molecular interactions that govern their functions has never been greater, fueled in recent years by the revolutionary advance of single-cell analysis platforms. However, precisely how immune cells respond to different stimuli and where differentiation processes and effector functions operate remain incompletely understood. Inferring cellular fate within single-cell transcriptomic analyses is now omnipresent, despite the assumptions typically required in such analyses. Recently developed experimental models support dynamic analyses of the immune response, providing insights into the temporal changes that occur within cells and the tissues in which such transitions occur. Here we will review these approaches and discuss how these can be combined with single-cell technologies to develop a deeper understanding of the immune responses that should support the development of better therapeutic options for patients.
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Affiliation(s)
- Colin Yc Lee
- Cambridge Institute of Therapeutic Immunology and Infection Disease, University of Cambridge, Cambridge, UK
| | - Menna R Clatworthy
- Cambridge Institute of Therapeutic Immunology and Infection Disease, University of Cambridge, Cambridge, UK
| | - David R Withers
- Institute of Immunology and Immunotherapy, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
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8
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Sarkozy C, Wu S, Takata K, Aoki T, Neriah SB, Milne K, Goodyear T, Strong C, Rastogi T, Hilton LK, Lai D, Sehn LH, Farinha P, Nelson BH, Weng A, Marra M, Scott DW, Craig JW, Steidl C, Roth A. Integrated single cell analysis reveals co-evolution of malignant B cells and tumor micro-environment in transformed follicular lymphoma. Cancer Cell 2024; 42:1003-1017.e6. [PMID: 38861923 DOI: 10.1016/j.ccell.2024.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 02/12/2024] [Accepted: 05/09/2024] [Indexed: 06/13/2024]
Abstract
Histological transformation of follicular lymphoma (FL) to aggressive forms is associated with poor outcome. Phenotypic consequences of this evolution and its impact on the tumor microenvironment (TME) remain unknown. We perform single-cell whole genome sequencing (scWGS) and transcriptome sequencing (scWTS) of 11 paired pre/post-transformation patient samples and scWTS of additional samples from patients without transformation. Our analysis reveals evolutionary dynamics of transformation at single-cell resolution, highlighting a shifting TME landscape, with an emerging immune-cell exhaustion signature, co-evolving with the shifting malignant B phenotype in a regulatory ecosystem. Integration of scWGS and scWTS identifies malignant cell pathways upregulated during clonal tumor evolution. Using multi-color immunofluorescence, we transfer these findings to a TME-based transformation biomarker, subsequently validated in two independent pretreatment cohorts. Taken together, our results provide a comprehensive view of the combined genomic and phenotypic evolution of malignant cells during transformation and shifting crosstalk between malignant cells and the TME.
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Affiliation(s)
- Clémentine Sarkozy
- Hematology Department, Institut Curie, Saint Cloud, France; University PSL, Inserm U1288, Laboratoire d'Imagerie Translationnelle en Oncologie, 91400 Orsay, France
| | - Shaocheng Wu
- Department of Molecular Oncology, British Columbia Cancer, Vancouver, BC, Canada
| | - Katsuyoshi Takata
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BC, Canada
| | - Tomohiro Aoki
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BC, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada; Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Susana B Neriah
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BC, Canada
| | - Katy Milne
- Deeley Research Centre, British Columbia Cancer, Vancouver, BC, Canada; Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada
| | - Talia Goodyear
- Deeley Research Centre, British Columbia Cancer, Vancouver, BC, Canada; Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada
| | - Celia Strong
- Deeley Research Centre, British Columbia Cancer, Vancouver, BC, Canada; Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada
| | - Tashi Rastogi
- Deeley Research Centre, British Columbia Cancer, Vancouver, BC, Canada; Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada
| | - Laura K Hilton
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BC, Canada
| | - Daniel Lai
- Department of Molecular Oncology, British Columbia Cancer, Vancouver, BC, Canada
| | - Laurie H Sehn
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BC, Canada
| | - Pedro Farinha
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BC, Canada
| | - Brad H Nelson
- Deeley Research Centre, British Columbia Cancer, Vancouver, BC, Canada; Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada; Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada
| | - Andrew Weng
- Terry Fox Laboratory, British Columbia Cancer, Vancouver, BC, Canada
| | - Marco Marra
- Department of Medical Genetics, University of British Columbia, Vancouver, BC, Canada; Michael Smith Laboratories, University of British Columbia, Vancouver, BC, Canada; Canada's Michael Smith Genome Sciences Centre, British Columbia Cancer, Vancouver, BC, Canada
| | - David W Scott
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BC, Canada
| | - Jeffrey W Craig
- Department of Pathology, University of Virginia Health System, Charlottesville, VA, USA
| | - Christian Steidl
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BC, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Andrew Roth
- Department of Molecular Oncology, British Columbia Cancer, Vancouver, BC, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada; Department of Computer Science, University of British Columbia, Vancouver, BC, Canada.
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9
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Romero P, Richart L, Aflaki S, Petitalot A, Burton M, Michaud A, Masliah-Planchon J, Kuhnowski F, Le Cam S, Baliñas-Gavira C, Méaudre C, Luscan A, Hamza A, Legoix P, Vincent-Salomon A, Wassef M, Holoch D, Margueron R. EZH2 mutations in follicular lymphoma distort H3K27me3 profiles and alter transcriptional responses to PRC2 inhibition. Nat Commun 2024; 15:3452. [PMID: 38658543 PMCID: PMC11043461 DOI: 10.1038/s41467-024-47701-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 04/08/2024] [Indexed: 04/26/2024] Open
Abstract
Mutations in chromatin regulators are widespread in cancer. Among them, the histone H3 lysine 27 methyltransferase Polycomb Repressive Complex 2 (PRC2) shows distinct alterations according to tumor type. This specificity is poorly understood. Here, we model several PRC2 alterations in one isogenic system to reveal their comparative effects. Focusing then on lymphoma-associated EZH2 mutations, we show that Ezh2Y641F induces aberrant H3K27 methylation patterns even without wild-type Ezh2, which are alleviated by partial PRC2 inhibition. Remarkably, Ezh2Y641F rewires the response to PRC2 inhibition, leading to induction of antigen presentation genes. Using a unique longitudinal follicular lymphoma cohort, we further link EZH2 status to abnormal H3K27 methylation. We also uncover unexpected variability in the mutational landscape of successive biopsies, pointing to frequent co-existence of different clones and cautioning against stratifying patients based on single sampling. Our results clarify how oncogenic PRC2 mutations disrupt chromatin and transcription, and the therapeutic vulnerabilities this creates.
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Affiliation(s)
- Pierre Romero
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
- Institut Curie, Department of Pathology, Paris Sciences et Lettres Research University, Paris, France
| | - Laia Richart
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Setareh Aflaki
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Ambre Petitalot
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Megan Burton
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Audrey Michaud
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Julien Masliah-Planchon
- Institut Curie, Pharmacogenetics Unit, Department of Genetics, Paris Sciences et Lettres Research University, Paris, France
| | - Frédérique Kuhnowski
- Institut Curie, Department of Clinical Hematology, Paris Sciences et Lettres Research University, Paris, France
| | - Samuel Le Cam
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Carlos Baliñas-Gavira
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Céline Méaudre
- Institut Curie, Department of Pathology, Paris Sciences et Lettres Research University, Paris, France
| | - Armelle Luscan
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Abderaouf Hamza
- Institut Curie, Pharmacogenetics Unit, Department of Genetics, Paris Sciences et Lettres Research University, Paris, France
| | - Patricia Legoix
- Institut Curie, Genomics of Excellence (ICGex) Platform, Paris Sciences et Lettres Research University, Paris, France
| | - Anne Vincent-Salomon
- Institut Curie, Department of Pathology, Paris Sciences et Lettres Research University, Paris, France
| | - Michel Wassef
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France
| | - Daniel Holoch
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France.
| | - Raphaël Margueron
- Institut Curie, INSERM U934/CNRS UMR 3215, Paris Sciences et Lettres Research University, Sorbonne University, Paris, France.
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10
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Laurent C, Dietrich S, Tarte K. Cell cross talk within the lymphoma tumor microenvironment: follicular lymphoma as a paradigm. Blood 2024; 143:1080-1090. [PMID: 38096368 DOI: 10.1182/blood.2023021000] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 11/30/2023] [Indexed: 03/22/2024] Open
Abstract
ABSTRACT Follicular lymphoma (FL) is an indolent yet incurable germinal center B-cell lymphoma retaining a characteristic follicular architecture. FL tumor B cells are highly dependent on direct and indirect interactions with a specific and complex tumor microenvironment (TME). Recently, great progress has been made in describing the heterogeneity and dynamics of the FL TME and in depicting how tumor clonal and functional heterogeneity rely on the integration of TME-related signals. Specifically, the FL TME is enriched for exhausted cytotoxic T cells, immunosuppressive regulatory T cells of various origins, and follicular helper T cells overexpressing B-cell and TME reprogramming factors. FL stromal cells have also emerged as crucial determinants of tumor growth and remodeling, with a key role in the deregulation of chemokines and extracellular matrix composition. Finally, tumor-associated macrophages play a dual function, contributing to FL cell phagocytosis and FL cell survival through long-lasting B-cell receptor activation. The resulting tumor-permissive niches show additional layers of site-to-site and kinetic heterogeneity, which raise questions about the niche of FL-committed precursor cells supporting early lymphomagenesis, clonal evolution, relapse, and transformation. In turn, FL B-cell genetic and nongenetic determinants drive the reprogramming of FL immune and stromal TME. Therefore, offering a functional picture of the dynamic cross talk between FL cells and TME holds the promise of identifying the mechanisms of therapy resistance, stratifying patients, and developing new therapeutic approaches capable of eradicating FL disease in its different ecosystems.
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Affiliation(s)
- Camille Laurent
- Department of Pathology, Institut Universitaire du Cancer de Toulouse Oncopole, Centre Hospitalo-Universitaire Toulouse, Centre de Recherches en Cancérologie de Toulouse, Laboratoire d'Excellence TOUCAN, INSERM Unité Mixte de Recherche 1037, Toulouse, France
| | - Sascha Dietrich
- Department of Haematology and Oncology, University Hospital Düsseldorf and Center for Integrated Oncology Aachen Bonn Cologne, Düsseldorf, Germany
| | - Karin Tarte
- Unité Mixte de Recherche S1236, INSERM, Université de Rennes, Etablissement Français du Sang Bretagne, Equipe Labellisée Ligue, Rennes, France
- Department of Biology, Centre Hospitalo-Universitaire de Rennes, Rennes, France
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11
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Radtke AJ, Roschewski M. The follicular lymphoma tumor microenvironment at single-cell and spatial resolution. Blood 2024; 143:1069-1079. [PMID: 38194685 PMCID: PMC11103101 DOI: 10.1182/blood.2023020999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 12/05/2023] [Accepted: 12/17/2023] [Indexed: 01/11/2024] Open
Abstract
ABSTRACT Follicular lymphoma (FL) is a generally incurable malignancy that originates from developmentally blocked germinal center B cells residing, primarily, within lymph nodes (LNs). During the long natural history of FL, malignant B cells often disseminate to multiple LNs and can affect virtually any organ. Nonmalignant LNs are highly organized structures distributed throughout the body, in which they perform functions critical for host defense. In FL, the malignant B cells "re-educate" the lymphoid environment by altering the phenotype, distribution, and abundance of other cells such as T cells, macrophages, and subsets of stromal cells. Consequently, dramatic anatomical changes occur and include alterations in the number, shape, and size of neoplastic follicles with an accompanying attenuation of the T-cell zone. Ongoing and dynamic interactions between FL B cells and the tumor microenvironment (TME) result in significant clinical heterogeneity observed both within and across patients. Over time, FL evolves into pathological variants associated with distinct outcomes, ranging from an indolent disease to more aggressive clinical courses with early death. Given the importance of both cell-intrinsic and -extrinsic factors in shaping disease progression and patient survival, comprehensive examination of FL tumors is critical. Here, we describe the cellular composition and architecture of normal and malignant human LNs and provide a broad overview of emerging technologies for deconstructing the FL TME at single-cell and spatial resolution. We additionally discuss the importance of capturing samples at landmark time points as well as longitudinally for clinical decision-making.
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Affiliation(s)
- Andrea J. Radtke
- Lymphocyte Biology Section and Center for Advanced Tissue Imaging, Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD
| | - Mark Roschewski
- Lymphoid Malignancies Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD
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12
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Krull JE, Wenzl K, Hopper MA, Manske MK, Sarangi V, Maurer MJ, Larson MC, Mondello P, Yang Z, Novak JP, Serres M, Whitaker KR, Villasboas Bisneto JC, Habermann TM, Witzig TE, Link BK, Rimsza LM, King RL, Ansell SM, Cerhan JR, Novak AJ. Follicular lymphoma B cells exhibit heterogeneous transcriptional states with associated somatic alterations and tumor microenvironments. Cell Rep Med 2024; 5:101443. [PMID: 38428430 PMCID: PMC10983045 DOI: 10.1016/j.xcrm.2024.101443] [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: 09/16/2022] [Revised: 08/14/2023] [Accepted: 02/05/2024] [Indexed: 03/03/2024]
Abstract
Follicular lymphoma (FL) is an indolent non-Hodgkin lymphoma of germinal center origin, which presents with significant biologic and clinical heterogeneity. Using RNA-seq on B cells sorted from 87 FL biopsies, combined with machine-learning approaches, we identify 3 transcriptional states that divide the biological ontology of FL B cells into inflamed, proliferative, and chromatin-modifying states, with relationship to prior GC B cell phenotypes. When integrated with whole-exome sequencing and immune profiling, we find that each state was associated with a combination of mutations in chromatin modifiers, copy-number alterations to TNFAIP3, and T follicular helper cells (Tfh) cell interactions, or primarily by a microenvironment rich in activated T cells. Altogether, these data define FL B cell transcriptional states across a large cohort of patients, contribute to our understanding of FL heterogeneity at the tumor cell level, and provide a foundation for guiding therapeutic intervention.
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Affiliation(s)
| | - Kerstin Wenzl
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | | | | | | | - Matthew J Maurer
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | - Melissa C Larson
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | | | - ZhiZhang Yang
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
| | | | | | | | | | | | | | - Brian K Link
- Division of Hematology, Oncology, and Blood & Marrow Transplantation, University of Iowa, Iowa City, IA, USA
| | - Lisa M Rimsza
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Scottsdale, AZ, USA
| | - Rebecca L King
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | | | - James R Cerhan
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA
| | - Anne J Novak
- Division of Hematology, Mayo Clinic, Rochester, MN, USA.
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13
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Radtke AJ, Postovalova E, Varlamova A, Bagaev A, Sorokina M, Kudryashova O, Meerson M, Polyakova M, Galkin I, Svekolkin V, Isaev S, Wiebe D, Sharun A, Sarachakov A, Perelman G, Lozinsky Y, Yaniv Z, Lowekamp BC, Speranza E, Yao L, Pittaluga S, Shaffer AL, Jonigk D, Phelan JD, Davies-Hill T, Huang DW, Ovcharov P, Nomie K, Nuzhdina E, Kotlov N, Ataullakhanov R, Fowler N, Kelly M, Muppidi J, Davis JL, Hernandez JM, Wilson WH, Jaffe ES, Staudt LM, Roschewski M, Germain RN. Multi-omic profiling of follicular lymphoma reveals changes in tissue architecture and enhanced stromal remodeling in high-risk patients. Cancer Cell 2024; 42:444-463.e10. [PMID: 38428410 PMCID: PMC10966827 DOI: 10.1016/j.ccell.2024.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 12/04/2023] [Accepted: 02/05/2024] [Indexed: 03/03/2024]
Abstract
Follicular lymphoma (FL) is a generally incurable malignancy that evolves from developmentally blocked germinal center (GC) B cells. To promote survival and immune escape, tumor B cells undergo significant genetic changes and extensively remodel the lymphoid microenvironment. Dynamic interactions between tumor B cells and the tumor microenvironment (TME) are hypothesized to contribute to the broad spectrum of clinical behaviors observed among FL patients. Despite the urgent need, existing clinical tools do not reliably predict disease behavior. Using a multi-modal strategy, we examined cell-intrinsic and -extrinsic factors governing progression and therapeutic outcomes in FL patients enrolled onto a prospective clinical trial. By leveraging the strengths of each platform, we identify several tumor-specific features and microenvironmental patterns enriched in individuals who experience early relapse, the most high-risk FL patients. These features include stromal desmoplasia and changes to the follicular growth pattern present 20 months before first progression and first relapse.
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Affiliation(s)
- Andrea J Radtke
- Lymphocyte Biology Section and Center for Advanced Tissue Imaging, Laboratory of Immune System Biology, NIAID, NIH, Bethesda, MD 20892, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Ziv Yaniv
- Bioinformatics and Computational Bioscience Branch, NIAID, NIH, Bethesda, MD 20892, USA
| | - Bradley C Lowekamp
- Bioinformatics and Computational Bioscience Branch, NIAID, NIH, Bethesda, MD 20892, USA
| | - Emily Speranza
- Lymphocyte Biology Section and Center for Advanced Tissue Imaging, Laboratory of Immune System Biology, NIAID, NIH, Bethesda, MD 20892, USA; Florida Research and Innovation Center, Cleveland Clinic Lerner Research Institute, Port Saint Lucie, FL 34987, USA
| | - Li Yao
- Li Yao Visuals, Rockville, MD 20855, USA
| | | | - Arthur L Shaffer
- Lymphoid Malignancies Branch, NCI, NIH, Bethesda, MD 20892, USA; Tumor Targeted Delivery, Heme Malignancy Target Discovery Group, AstraZeneca, Gaithersburg, MD 20878, USA
| | - Danny Jonigk
- Institute of Pathology, Aachen Medical University, RWTH Aachen, 52074 Aachen, Germany; German Center for Lung Research (DZL), Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), 30625 Hannover, Germany
| | - James D Phelan
- Lymphoid Malignancies Branch, NCI, NIH, Bethesda, MD 20892, USA
| | | | - Da Wei Huang
- Lymphoid Malignancies Branch, NCI, NIH, Bethesda, MD 20892, USA
| | | | | | | | | | | | | | - Michael Kelly
- CCR Single Analysis Facility, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Bethesda, MD 20892, USA
| | - Jagan Muppidi
- Lymphoid Malignancies Branch, NCI, NIH, Bethesda, MD 20892, USA
| | - Jeremy L Davis
- Surgical Oncology Program, Metastasis Biology Section, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD 20892, USA
| | - Jonathan M Hernandez
- Surgical Oncology Program, Metastasis Biology Section, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD 20892, USA
| | | | - Elaine S Jaffe
- Laboratory of Pathology, NCI, NIH, Bethesda, MD 20892, USA
| | - Louis M Staudt
- Lymphoid Malignancies Branch, NCI, NIH, Bethesda, MD 20892, USA
| | - Mark Roschewski
- Lymphoid Malignancies Branch, NCI, NIH, Bethesda, MD 20892, USA
| | - Ronald N Germain
- Lymphocyte Biology Section and Center for Advanced Tissue Imaging, Laboratory of Immune System Biology, NIAID, NIH, Bethesda, MD 20892, USA
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14
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Bobée V, Viennot M, Rainville V, Veresezan L, Drieux F, Viailly P, Michel V, Sater V, Lanic M, Bohers E, Camus V, Tilly H, Jardin F, Ruminy P. Analysis of immunoglobulin/T-cell receptor repertoires by high-throughput RNA sequencing reveals a continuous dynamic of positive clonal selection in follicular lymphoma. Hemasphere 2024; 8:e50. [PMID: 38435425 PMCID: PMC10896008 DOI: 10.1002/hem3.50] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 01/19/2024] [Accepted: 01/26/2024] [Indexed: 03/05/2024] Open
Abstract
Follicular lymphoma (FL) course is highly variable, making its clinical management challenging. In this incurable and recurring pathology, the interval between relapses tends to decrease while aggressiveness increases, sometimes resulting in the transformation to higher-grade lymphoma. These evolutions are particularly difficult to anticipate, resulting from complex clonal evolutions where multiple subclones compete and thrive due to their capacity to proliferate and resist therapies. Here, to apprehend further these processes, we used a high-throughput RNA sequencing approach to address simultaneously the B-cell immunoglobulin repertoires and T-cell immunoglobulin repertoires repertoires of lymphoma cells and their lymphoid microenvironment in a large cohort of 131 FL1/2-3A patients. Our data confirm the existence of a high degree of intra-clonal heterogeneity in this pathology, resulting from ongoing somatic hyper-mutation and class switch recombination. Through the evaluation of the Simpson ecological-diversity index, we show that the contribution of the cancerous cells increases during the course of the disease to the detriment of the reactive compartment, a phenomenon accompanied by a concomitant decrease in the diversity of the tumoral population. Clonal evolution in FL thus contrasts with many tumors, where clonal heterogeneity steadily increases over time and participates in treatment evasion. In this pathology, the selection of lymphoma subclones with proliferative advantages progressively outweighs clonal diversification, ultimately leading in extreme cases to transformation to high-grade lymphoma resulting from the rapid emergence of homogeneous subpopulations.
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Affiliation(s)
- Victor Bobée
- INSERM U1245, Centre Henri Becquerel, UNIROUENUniversity of NormandieRouenFrance
- Department of Biological HematologyRouen University HospitalRouenFrance
| | - Mathieu Viennot
- INSERM U1245, Centre Henri Becquerel, UNIROUENUniversity of NormandieRouenFrance
| | - Vinciane Rainville
- INSERM U1245, Centre Henri Becquerel, UNIROUENUniversity of NormandieRouenFrance
| | - Liana Veresezan
- INSERM U1245, Centre Henri Becquerel, UNIROUENUniversity of NormandieRouenFrance
- Department of PathologyCentre Henri BecquerelRouenFrance
| | - Fanny Drieux
- INSERM U1245, Centre Henri Becquerel, UNIROUENUniversity of NormandieRouenFrance
- Department of PathologyCentre Henri BecquerelRouenFrance
| | | | - Victor Michel
- INSERM U1245, Centre Henri Becquerel, UNIROUENUniversity of NormandieRouenFrance
| | - Vincent Sater
- INSERM U1245, Centre Henri Becquerel, UNIROUENUniversity of NormandieRouenFrance
| | - Marie‐Delphine Lanic
- INSERM U1245, Centre Henri Becquerel, UNIROUENUniversity of NormandieRouenFrance
| | - Elodie Bohers
- INSERM U1245, Centre Henri Becquerel, UNIROUENUniversity of NormandieRouenFrance
| | - Vincent Camus
- INSERM U1245, Centre Henri Becquerel, UNIROUENUniversity of NormandieRouenFrance
- Department of Clinical HematologyCentre Henri BecquerelRouenFrance
| | - Hervé Tilly
- INSERM U1245, Centre Henri Becquerel, UNIROUENUniversity of NormandieRouenFrance
- Department of Clinical HematologyCentre Henri BecquerelRouenFrance
| | - Fabrice Jardin
- INSERM U1245, Centre Henri Becquerel, UNIROUENUniversity of NormandieRouenFrance
- Department of Clinical HematologyCentre Henri BecquerelRouenFrance
| | - Philippe Ruminy
- INSERM U1245, Centre Henri Becquerel, UNIROUENUniversity of NormandieRouenFrance
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15
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Haebe S, Day G, Czerwinski DK, Sathe A, Grimes SM, Chen T, Long SR, Martin B, Ozawa MG, Ji HP, Shree T, Levy R. Follicular lymphoma evolves with a surmountable dependency on acquired glycosylation motifs in the B-cell receptor. Blood 2023; 142:2296-2304. [PMID: 37683139 PMCID: PMC10797552 DOI: 10.1182/blood.2023020360] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 08/15/2023] [Accepted: 08/16/2023] [Indexed: 09/10/2023] Open
Abstract
ABSTRACT An early event in the genesis of follicular lymphoma (FL) is the acquisition of new glycosylation motifs in the B-cell receptor (BCR) due to gene rearrangement and/or somatic hypermutation. These N-linked glycosylation motifs (N-motifs) contain mannose-terminated glycans and can interact with lectins in the tumor microenvironment, activating the tumor BCR pathway. N-motifs are stable during FL evolution, suggesting that FL tumor cells are dependent on them for their survival. Here, we investigated the dynamics and potential impact of N-motif prevalence in FL at the single-cell level across distinct tumor sites and over time in 17 patients. Although most patients had acquired at least 1 N-motif as an early event, we also found (1) cases without N-motifs in the heavy or light chains at any tumor site or time point and (2) cases with discordant N-motif patterns across different tumor sites. Inferring phylogenetic trees of the patients with discordant patterns, we observed that both N-motif-positive and N-motif-negative tumor subclones could be selected and expanded during tumor evolution. Comparing N-motif-positive with N-motif-negative tumor cells within a patient revealed higher expression of genes involved in the BCR pathway and inflammatory response, whereas tumor cells without N-motifs had higher activity of pathways involved in energy metabolism. In conclusion, although acquired N-motifs likely support FL pathogenesis through antigen-independent BCR signaling in most patients with FL, N-motif-negative tumor cells can also be selected and expanded and may depend more heavily on altered metabolism for competitive survival.
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Affiliation(s)
- Sarah Haebe
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA
| | - Grady Day
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA
| | - Debra K. Czerwinski
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA
| | - Anuja Sathe
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA
| | - Susan M. Grimes
- Stanford Genome Technology Center, Stanford University, Stanford, CA
| | - Tianqi Chen
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA
| | - Steven R. Long
- Department of Pathology, University of California, San Francisco, CA
- Department of Pathology, Stanford University School of Medicine, Stanford, CA
| | - Brock Martin
- Department of Pathology, Stanford University School of Medicine, Stanford, CA
| | - Michael G. Ozawa
- Department of Pathology, Stanford University School of Medicine, Stanford, CA
| | - Hanlee P. Ji
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA
| | - Tanaya Shree
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA
| | - Ronald Levy
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA
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16
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Spasevska I, Sharma A, Steen CB, Josefsson SE, Blaker YN, Kolstad A, Rustad EH, Meyer S, Isaksen K, Chellappa S, Kushekhar K, Beiske K, Førsund MS, Spetalen S, Holte H, Østenstad B, Brodtkorb M, Kimby E, Olweus J, Taskén K, Newman AM, Lorenz S, Smeland EB, Alizadeh AA, Huse K, Myklebust JH. Diversity of intratumoral regulatory T cells in B-cell non-Hodgkin lymphoma. Blood Adv 2023; 7:7216-7230. [PMID: 37695745 PMCID: PMC10698546 DOI: 10.1182/bloodadvances.2023010158] [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: 03/08/2023] [Revised: 08/25/2023] [Accepted: 08/28/2023] [Indexed: 09/13/2023] Open
Abstract
Tumor-infiltrating regulatory T cells (Tregs) contribute to an immunosuppressive tumor microenvironment. Despite extensive studies, the prognostic impact of tumor-infiltrating Tregs in B-cell non-Hodgkin lymphomas (B-NHLs) remains unclear. Emerging studies suggest substantial heterogeneity in the phenotypes and suppressive capacities of Tregs, emphasizing the importance of understanding Treg diversity and the need for additional markers to identify highly suppressive Tregs. Here, we applied single-cell RNA sequencing and T-cell receptor sequencing combined with high-dimensional cytometry to decipher the heterogeneity of intratumoral Tregs in diffuse large B-cell lymphoma and follicular lymphoma (FL), compared with that in nonmalignant tonsillar tissue. We identified 3 distinct transcriptional states of Tregs: resting, activated, and unconventional LAG3+FOXP3- Tregs. Activated Tregs were enriched in B-NHL tumors, coexpressed several checkpoint receptors, and had stronger immunosuppressive activity compared with resting Tregs. In FL, activated Tregs were found in closer proximity to CD4+ and CD8+ T cells than other cell types. Furthermore, we used a computational approach to develop unique gene signature matrices, which were used to enumerate each Treg subset in cohorts with bulk gene expression data. In 2 independent FL cohorts, activated Tregs was the major subset, and high abundance was associated with adverse outcome. This study demonstrates that Tregs infiltrating B-NHL tumors are transcriptionally and functionally diverse. Highly immunosuppressive activated Tregs were enriched in tumor tissue but absent in the peripheral blood. Our data suggest that a deeper understanding of Treg heterogeneity in B-NHL could open new paths for rational drug design, facilitating selective targeting to improve antitumor immunity.
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Affiliation(s)
- Ivana Spasevska
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- KG Jebsen Centre for B-cell malignancies, Institute of Clinical Medicine, University of Oslo, Norway
- Precision Immunotherapy Alliance, University of Oslo, Oslo, Norway
| | - Ankush Sharma
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- KG Jebsen Centre for B-cell malignancies, Institute of Clinical Medicine, University of Oslo, Norway
- Precision Immunotherapy Alliance, University of Oslo, Oslo, Norway
| | - Chloé B. Steen
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- KG Jebsen Centre for B-cell malignancies, Institute of Clinical Medicine, University of Oslo, Norway
- Precision Immunotherapy Alliance, University of Oslo, Oslo, Norway
- Division of Oncology, Stanford University School of Medicine, Stanford, CA
| | - Sarah E. Josefsson
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- KG Jebsen Centre for B-cell malignancies, Institute of Clinical Medicine, University of Oslo, Norway
| | - Yngvild N. Blaker
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- KG Jebsen Centre for B-cell malignancies, Institute of Clinical Medicine, University of Oslo, Norway
| | - Arne Kolstad
- KG Jebsen Centre for B-cell malignancies, Institute of Clinical Medicine, University of Oslo, Norway
- Department of Oncology, Innlandet Hospital Trust, Lillehammer, Norway
- Division of Cancer Medicine, Department of Oncology, Oslo University Hospital, Oslo, Norway
| | - Even H. Rustad
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- Precision Immunotherapy Alliance, University of Oslo, Oslo, Norway
| | - Saskia Meyer
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- Precision Immunotherapy Alliance, University of Oslo, Oslo, Norway
| | - Kathrine Isaksen
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- KG Jebsen Centre for B-cell malignancies, Institute of Clinical Medicine, University of Oslo, Norway
- Precision Immunotherapy Alliance, University of Oslo, Oslo, Norway
| | - Stalin Chellappa
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Kushi Kushekhar
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- KG Jebsen Centre for B-cell malignancies, Institute of Clinical Medicine, University of Oslo, Norway
| | - Klaus Beiske
- KG Jebsen Centre for B-cell malignancies, Institute of Clinical Medicine, University of Oslo, Norway
- Division of Cancer Medicine, Department of Pathology, Oslo University Hospital, Oslo, Norway
| | - Mette S. Førsund
- Division of Cancer Medicine, Department of Pathology, Oslo University Hospital, Oslo, Norway
| | - Signe Spetalen
- Division of Cancer Medicine, Department of Pathology, Oslo University Hospital, Oslo, Norway
| | - Harald Holte
- KG Jebsen Centre for B-cell malignancies, Institute of Clinical Medicine, University of Oslo, Norway
- Division of Cancer Medicine, Department of Oncology, Oslo University Hospital, Oslo, Norway
| | - Bjørn Østenstad
- KG Jebsen Centre for B-cell malignancies, Institute of Clinical Medicine, University of Oslo, Norway
- Division of Cancer Medicine, Department of Oncology, Oslo University Hospital, Oslo, Norway
| | - Marianne Brodtkorb
- KG Jebsen Centre for B-cell malignancies, Institute of Clinical Medicine, University of Oslo, Norway
- Division of Cancer Medicine, Department of Oncology, Oslo University Hospital, Oslo, Norway
| | - Eva Kimby
- Department of Hematology, Karolinska Institute, Stockholm, Sweden
| | - Johanna Olweus
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- Precision Immunotherapy Alliance, University of Oslo, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Norway
| | - Kjetil Taskén
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- KG Jebsen Centre for B-cell malignancies, Institute of Clinical Medicine, University of Oslo, Norway
| | - Aaron M. Newman
- Division of Oncology, Stanford University School of Medicine, Stanford, CA
- Divisions of Hematology & Oncology, Department of Medicine, Stanford University, Stanford, CA
| | - Susanne Lorenz
- Department of Core Facilities, Geonomics Core Facility, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
| | - Erlend B. Smeland
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- KG Jebsen Centre for B-cell malignancies, Institute of Clinical Medicine, University of Oslo, Norway
- Precision Immunotherapy Alliance, University of Oslo, Oslo, Norway
| | - Ash A. Alizadeh
- Division of Oncology, Stanford University School of Medicine, Stanford, CA
- Divisions of Hematology & Oncology, Department of Medicine, Stanford University, Stanford, CA
| | - Kanutte Huse
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- KG Jebsen Centre for B-cell malignancies, Institute of Clinical Medicine, University of Oslo, Norway
- Precision Immunotherapy Alliance, University of Oslo, Oslo, Norway
| | - June H. Myklebust
- Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- KG Jebsen Centre for B-cell malignancies, Institute of Clinical Medicine, University of Oslo, Norway
- Precision Immunotherapy Alliance, University of Oslo, Oslo, Norway
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17
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Parry EM, Roulland S, Okosun J. DLBCL arising from indolent lymphomas: How are they different? Semin Hematol 2023; 60:277-284. [PMID: 38072721 DOI: 10.1053/j.seminhematol.2023.11.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/10/2023] [Accepted: 11/16/2023] [Indexed: 03/12/2024]
Abstract
Transformation to diffuse large B-cell lymphoma (DLBCL) is a recognized, but unpredictable, clinical inflection point in the natural history of indolent lymphomas. Large retrospective studies highlight a wide variability in the incidence of transformation across the indolent lymphomas and the adverse outcomes associated with transformed lymphomas. Opportunities to dissect the biology of transformed indolent lymphomas have arisen with evolving technologies and unique tissue collections enabling a growing appreciation, particularly, of their genetic basis, how they relate to the preceding indolent lymphomas and the comparative biology with de novo DLBCL. This review summarizes our current understanding of both the clinical and biological aspects of transformed lymphomas and the outstanding questions that remain.
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Affiliation(s)
- Erin M Parry
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA; Harvard Medical School, Boston, MA; Broad Institute of MIT and Harvard, Cambridge, MA
| | - Sandrine Roulland
- Aix-Marseille University, CNRS, INSERM, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Jessica Okosun
- Centre for Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London, UK; Department of Haemato-Oncology, St Bartholomew's Hospital, London, UK.
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18
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Maura F, Adams RM, Aoki T. Scientific techniques in adolescent and young adult classic Hodgkin lymphoma. EJHAEM 2023; 4:902-907. [PMID: 38024640 PMCID: PMC10660113 DOI: 10.1002/jha2.786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/21/2023] [Accepted: 07/21/2023] [Indexed: 12/01/2023]
Abstract
Understanding the tumor microenvironment and genomic landscape is crucial for better prediction of treatment outcomes and developing novel therapies in Hodgkin lymphoma (HL). Recent advancements in genomics have enabled researchers to gain deeper insights into the genomic characteristics of HL at both single-cell resolution and the whole genome level. The use of noninvasive methods such as liquid biopsies and formalin-fixed paraffin-embedded-based imaging techniques has expanded the possibilities of applying cutting-edge analyses to routine clinically available samples. Collaborative efforts between adult and pediatric group are imperative to translate novel findings into routine patient care.
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Affiliation(s)
- Francesco Maura
- Sylvester Comprehensive Cancer CenterUniversity of MiamiMiamiFloridaUSA
| | - Ragini M. Adams
- Division of Pediatric Hematology, OncologyStanford University School of MedicineStanfordCaliforniaUSA
| | - Tomohiro Aoki
- Princess Margaret Cancer CentreUniversity Health NetworkTorontoOntarioCanada
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19
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Abe Y. Follicular lymphoma microenvironment: insights provided by single-cell analysis. J Clin Exp Hematop 2023; 63:143-151. [PMID: 37635086 PMCID: PMC10628831 DOI: 10.3960/jslrt.23012] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 06/17/2023] [Accepted: 06/19/2023] [Indexed: 08/29/2023] Open
Abstract
Follicular lymphoma (FL) is the most frequent indolent lymphoma and is characterized by the abundant infiltration of tumor microenvironment (TME) cells. The activity of TME cells reportedly plays an important role in the biology of FL. TME cells that reside within neoplastic follicles, such as T-follicular helper cells and follicular dendritic cells, have been shown to aid in FL development and progression through interactions with malignant B cells, whereas regulatory T cells have unexpectedly shown an apparently favorable prognostic impact in FL. Unfortunately, the understanding of the FL TME, particularly regarding minor cell subsets, has been hampered by unknown cell heterogeneity. As with other solid and hematologic cancers, novel single-cell analysis technologies have recently been applied to FL research and have uncovered previously unrecognized heterogeneities, not only in malignant B cells but also in TME cells. These reports have greatly increased the resolution of our understanding of the FL TME and, at the same time, raised questions about newly identified TME cells. This review provides an overview of the unique aspects of FL TME cells with a clinical viewpoint and highlights recent discoveries from single-cell analysis, while also suggesting potential future directions.
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Affiliation(s)
- Yoshiaki Abe
- Department of Hematology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
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20
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Grimes SM, Kim HS, Roy S, Sathe A, Ayala C, Bai X, Almeda-Notestine A, Haebe S, Shree T, Levy R, Lau B, Ji H. Single-cell multi-gene identification of somatic mutations and gene rearrangements in cancer. NAR Cancer 2023; 5:zcad034. [PMID: 37435532 PMCID: PMC10331933 DOI: 10.1093/narcan/zcad034] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 05/18/2023] [Accepted: 06/15/2023] [Indexed: 07/13/2023] Open
Abstract
In this proof-of-concept study, we developed a single-cell method that provides genotypes of somatic alterations found in coding regions of messenger RNAs and integrates these transcript-based variants with their matching cell transcriptomes. We used nanopore adaptive sampling on single-cell complementary DNA libraries to validate coding variants in target gene transcripts, and short-read sequencing to characterize cell types harboring the mutations. CRISPR edits for 16 targets were identified using a cancer cell line, and known variants in the cell line were validated using a 352-gene panel. Variants in primary cancer samples were validated using target gene panels ranging from 161 to 529 genes. A gene rearrangement was also identified in one patient, with the rearrangement occurring in two distinct tumor sites.
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Affiliation(s)
- Susan M Grimes
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Heon Seok Kim
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Sharmili Roy
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Anuja Sathe
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Carlos I Ayala
- Department of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Xiangqi Bai
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Alison F Almeda-Notestine
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Sarah Haebe
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Tanaya Shree
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Ronald Levy
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Billy T Lau
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Hanlee P Ji
- Division of Oncology, Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
- Department of Engineering, Stanford University, Stanford, CA 94305, USA
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21
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Nagy Á, Bátai B, Kiss L, Gróf S, Király PA, Jóna Á, Demeter J, Sánta H, Bátai Á, Pettendi P, Szendrei T, Plander M, Körösmezey G, Alizadeh H, Kajtár B, Méhes G, Krenács L, Timár B, Csomor J, Tóth E, Schneider T, Mikala G, Matolcsy A, Alpár D, Masszi A, Bödör C. Parallel testing of liquid biopsy (ctDNA) and tissue biopsy samples reveals a higher frequency of EZH2 mutations in follicular lymphoma. J Intern Med 2023; 294:295-313. [PMID: 37259686 DOI: 10.1111/joim.13674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
BACKGROUND Recent genomic studies revealed enhancer of zeste homolog 2 (EZH2) gain-of-function mutations, representing novel therapeutic targets in follicular lymphoma (FL) in around one quarter of patients. However, these analyses relied on single-site tissue biopsies and did not investigate the spatial heterogeneity and temporal dynamics of these alterations. OBJECTIVES We aimed to perform a systematic analysis of EZH2 mutations using paired tissue (tumor biopsies [TB]) and liquid biopsies (LB) collected prior to treatment within the framework of a nationwide multicentric study. METHODS Pretreatment LB and TB samples were collected from 123 patients. Among these, 114 had paired TB and LB, with 39 patients characterized with paired diagnostic and relapse samples available. The EZH2 mutation status and allele burden were assessed using an in-house-designed, highly sensitive multiplex droplet digital PCR assay. RESULTS EZH2 mutation frequency was found to be 41.5% in the entire cohort. In patients with paired TB and LB samples, EZH2 mutations were identified in 37.8% of the patients with mutations exclusively found in 5.3% and 7.9% of TB and LB samples, respectively. EZH2 mutation status switch was documented in 35.9% of the patients with paired diagnostic and relapse samples. We also found that EZH2 wild-type clones may infiltrate the bone marrow more frequently compared to the EZH2 mutant ones. CONCLUSION The in-depth spatio-temporal analysis identified EZH2 mutations in a considerably higher proportion of patients than previously reported. This expands the subset of FL patients who most likely would benefit from EZH2 inhibitor therapy.
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Affiliation(s)
- Ákos Nagy
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Bence Bátai
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Laura Kiss
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Stefánia Gróf
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Péter Attila Király
- Hematology and Lymphoma Unit, National Institute of Oncology, Budapest, Hungary
| | - Ádám Jóna
- Department of Hematology, Faculty of Medicine, Medical School of Clinical Medicine, University of Debrecen, Debrecen, Hungary
| | - Judit Demeter
- Department of Internal Medicine and Oncology, Semmelweis University, Budapest, Hungary
| | - Hermina Sánta
- Szent György Hospital of County Fejér, Székesfehérvár, Hungary
| | - Árpád Bátai
- Szent György Hospital of County Fejér, Székesfehérvár, Hungary
| | - Piroska Pettendi
- Hetényi Géza Hospital, Clinic of County Jász-Nagykun-Szolnok, Szolnok, Hungary
| | - Tamás Szendrei
- Markusovszky University Teaching Hospital, Szombathely, Hungary
| | - Márk Plander
- Markusovszky University Teaching Hospital, Szombathely, Hungary
| | - Gábor Körösmezey
- Department of Medicine, Military Hospital - Medical Centre, Hungarian Defence Forces, Budapest, Hungary
| | - Hussain Alizadeh
- 1st Department of Internal Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Béla Kajtár
- Department of Pathology, Medical School, Clinical Centre, University of Pécs, Pécs, Hungary
| | - Gábor Méhes
- Department of Pathology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - László Krenács
- Laboratory of Tumor Pathology and Molecular Diagnostics, Szeged, Hungary
| | - Botond Timár
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Judit Csomor
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Erika Tóth
- Department of Surgical and Molecular Pathology, National Institute of Oncology, Budapest, Hungary
| | - Tamás Schneider
- Hematology and Lymphoma Unit, National Institute of Oncology, Budapest, Hungary
| | - Gábor Mikala
- Department of Hematology and Stem Cell Transplantation, National Institute for Hematology and Infectious Diseases, South Pest Central Hospital, Budapest, Hungary
| | - András Matolcsy
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
- Department of Laboratory Medicine, Karolinska Institutet, Solna, Sweden
| | - Donát Alpár
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - András Masszi
- Hematology and Lymphoma Unit, National Institute of Oncology, Budapest, Hungary
| | - Csaba Bödör
- HCEMM-SE Molecular Oncohematology Research Group, Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
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22
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Alderuccio JP, Kuker RA, Yang F, Moskowitz CH. Quantitative PET-based biomarkers in lymphoma: getting ready for primetime. Nat Rev Clin Oncol 2023; 20:640-657. [PMID: 37460635 DOI: 10.1038/s41571-023-00799-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/21/2023] [Indexed: 08/20/2023]
Abstract
The use of functional quantitative biomarkers extracted from routine PET-CT scans to characterize clinical responses in patients with lymphoma is gaining increased attention, and these biomarkers can outperform established clinical risk factors. Total metabolic tumour volume enables individualized estimation of survival outcomes in patients with lymphoma and has shown the potential to predict response to therapy suitable for risk-adapted treatment approaches in clinical trials. The deployment of machine learning tools in molecular imaging research can assist in recognizing complex patterns and, with image classification, in tumour identification and segmentation of data from PET-CT scans. Initial studies using fully automated approaches to calculate metabolic tumour volume and other PET-based biomarkers have demonstrated appropriate correlation with calculations from experts, warranting further testing in large-scale studies. The extraction of computer-based quantitative tumour characterization through radiomics can provide a comprehensive view of phenotypic heterogeneity that better captures the molecular and functional features of the disease. Additionally, radiomics can be integrated with genomic data to provide more accurate prognostic information. Further improvements in PET-based biomarkers are imminent, although their incorporation into clinical decision-making currently has methodological shortcomings that need to be addressed with confirmatory prospective validation in selected patient populations. In this Review, we discuss the current knowledge, challenges and opportunities in the integration of quantitative PET-based biomarkers in clinical trials and the routine management of patients with lymphoma.
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Affiliation(s)
- Juan Pablo Alderuccio
- Department of Medicine, Division of Hematology, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA.
| | - Russ A Kuker
- Department of Radiology, Division of Nuclear Medicine, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Fei Yang
- Department of Radiation Oncology, Division of Medical Physics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Craig H Moskowitz
- Department of Medicine, Division of Hematology, Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, FL, USA
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23
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Linton KM, Specht L, Pavlovsky A, Thompson CA, Kimby E, de Jong D, Nastoupil LJ, Cottereau AS, Casulo C, Sarkozy C, Okosun J. Personalised therapy in follicular lymphoma - is the dial turning? Hematol Oncol 2023. [PMID: 37482955 DOI: 10.1002/hon.3205] [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: 04/06/2023] [Revised: 05/25/2023] [Accepted: 06/17/2023] [Indexed: 07/25/2023]
Abstract
Follicular lymphoma is the most common indolent lymphoma accounting for approximately 20%-25% of all new non-Hodgkin lymphoma diagnoses in western countries. Whilst outcomes are mostly favorable, the spectrum of clinical phenotypes includes high-risk groups with significantly inferior outcomes. This review discusses recent updates in risk stratification and treatment approaches from upfront treatment for limited and advanced stage follicular lymphoma to the growing options for relapsed, refractory disease with perspectives on how to approach this from a personalized lens. Notable gaps remain on how one can precisely and prospectively select optimal treatment for patients based on varying risks, with an anticipation that an increased understanding of the biology of these different phenotypes and increasing refinement of imaging- and biomarker-based tools will, in time, allow these gaps to be closed.
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Affiliation(s)
- Kim M Linton
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester, UK
- Division of Cancer Sciences, The Manchester Cancer Research Centre, University of Manchester, Manchester, UK
| | - Lena Specht
- Department of Oncology, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Astrid Pavlovsky
- Department of Hematology, Fundaleu Clinical Research Center, Buenos Aires, Argentina
- Centro de Helmatología Pavlovsky, Medical Director, Buenos Aires, Argentina
| | - Carrie A Thompson
- Department of Internal Medicine, Division of Hematology, Mayo Clinic, Rochester, Minnesota, USA
| | - Eva Kimby
- Department of Medicine Karolinska Institutet, Center of Hematology, Stockholm, Sweden
| | - Daphne de Jong
- Department of Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Loretta J Nastoupil
- Department of Lymphoma/Myeloma, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Anne-Ségolène Cottereau
- Department of Nuclear Medicine, Cochin Hospital, APHP, University of Paris Cité, Paris, France
| | - Carla Casulo
- Department of Medicine, University of Rochester, Rochester, New York, USA
| | | | - Jessica Okosun
- Centre for Haemato-Oncology Barts Cancer Institute, Queen Mary University of London, London, UK
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24
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Alsoussi WB, Malladi SK, Zhou JQ, Liu Z, Ying B, Kim W, Schmitz AJ, Lei T, Horvath SC, Sturtz AJ, McIntire KM, Evavold B, Han F, Scheaffer SM, Fox IF, Mirza SF, Parra-Rodriguez L, Nachbagauer R, Nestorova B, Chalkias S, Farnsworth CW, Klebert MK, Pusic I, Strnad BS, Middleton WD, Teefey SA, Whelan SPJ, Diamond MS, Paris R, O'Halloran JA, Presti RM, Turner JS, Ellebedy AH. SARS-CoV-2 Omicron boosting induces de novo B cell response in humans. Nature 2023; 617:592-598. [PMID: 37011668 DOI: 10.1038/s41586-023-06025-4] [Citation(s) in RCA: 60] [Impact Index Per Article: 60.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 03/28/2023] [Indexed: 04/05/2023]
Abstract
The primary two-dose SARS-CoV-2 mRNA vaccine series are strongly immunogenic in humans, but the emergence of highly infectious variants necessitated additional doses and the development of vaccines aimed at the new variants1-4. SARS-CoV-2 booster immunizations in humans primarily recruit pre-existing memory B cells5-9. However, it remains unclear whether the additional doses induce germinal centre reactions whereby re-engaged B cells can further mature, and whether variant-derived vaccines can elicit responses to variant-specific epitopes. Here we show that boosting with an mRNA vaccine against the original monovalent SARS-CoV-2 mRNA vaccine or the bivalent B.1.351 and B.1.617.2 (Beta/Delta) mRNA vaccine induced robust spike-specific germinal centre B cell responses in humans. The germinal centre response persisted for at least eight weeks, leading to significantly more mutated antigen-specific bone marrow plasma cell and memory B cell compartments. Spike-binding monoclonal antibodies derived from memory B cells isolated from individuals boosted with either the original SARS-CoV-2 spike protein, bivalent Beta/Delta vaccine or a monovalent Omicron BA.1-based vaccine predominantly recognized the original SARS-CoV-2 spike protein. Nonetheless, using a more targeted sorting approach, we isolated monoclonal antibodies that recognized the BA.1 spike protein but not the original SARS-CoV-2 spike protein from individuals who received the mRNA-1273.529 booster; these antibodies were less mutated and recognized novel epitopes within the spike protein, suggesting that they originated from naive B cells. Thus, SARS-CoV-2 booster immunizations in humans induce robust germinal centre B cell responses and can generate de novo B cell responses targeting variant-specific epitopes.
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Affiliation(s)
- Wafaa B Alsoussi
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Sameer Kumar Malladi
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Julian Q Zhou
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Zhuoming Liu
- Department of Molecular Microbiology, Washington University School of Medicine, St Louis, MO, USA
| | - Baoling Ying
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
- Department of Molecular Microbiology, Washington University School of Medicine, St Louis, MO, USA
| | - Wooseob Kim
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Aaron J Schmitz
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Tingting Lei
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Stephen C Horvath
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Alexandria J Sturtz
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Katherine M McIntire
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Birk Evavold
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Fangjie Han
- Department of Emergency Medicine, Washington University School of Medicine, St Louis, MO, USA
| | - Suzanne M Scheaffer
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
- Department of Molecular Microbiology, Washington University School of Medicine, St Louis, MO, USA
| | - Isabella F Fox
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Senaa F Mirza
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Luis Parra-Rodriguez
- Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine, St Louis, MO, USA
| | | | | | | | - Christopher W Farnsworth
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Michael K Klebert
- Infectious Disease Clinical Research Unit, Washington University School of Medicine, St Louis, MO, USA
| | - Iskra Pusic
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St Louis, MO, USA
| | - Benjamin S Strnad
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, MO, USA
| | - William D Middleton
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, MO, USA
| | - Sharlene A Teefey
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, MO, USA
| | - Sean P J Whelan
- Department of Molecular Microbiology, Washington University School of Medicine, St Louis, MO, USA
| | - Michael S Diamond
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
- Department of Molecular Microbiology, Washington University School of Medicine, St Louis, MO, USA
- Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine, St Louis, MO, USA
- Center for Vaccines and Immunity to Microbial Pathogens, Washington University School of Medicine, St Louis, MO, USA
- The Andrew M. and Jane M. Bursky Center for Human Immunology and Immunotherapy Programs, Washington University School of Medicine, St Louis, MO, USA
| | | | - Jane A O'Halloran
- Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine, St Louis, MO, USA
- Infectious Disease Clinical Research Unit, Washington University School of Medicine, St Louis, MO, USA
| | - Rachel M Presti
- Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine, St Louis, MO, USA
- Infectious Disease Clinical Research Unit, Washington University School of Medicine, St Louis, MO, USA
- Center for Vaccines and Immunity to Microbial Pathogens, Washington University School of Medicine, St Louis, MO, USA
- The Andrew M. and Jane M. Bursky Center for Human Immunology and Immunotherapy Programs, Washington University School of Medicine, St Louis, MO, USA
| | - Jackson S Turner
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA.
| | - Ali H Ellebedy
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA.
- Center for Vaccines and Immunity to Microbial Pathogens, Washington University School of Medicine, St Louis, MO, USA.
- The Andrew M. and Jane M. Bursky Center for Human Immunology and Immunotherapy Programs, Washington University School of Medicine, St Louis, MO, USA.
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25
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Aoki T, Steidl C. Novel insights into Hodgkin lymphoma biology by single-cell analysis. Blood 2023; 141:1791-1801. [PMID: 36548960 PMCID: PMC10646771 DOI: 10.1182/blood.2022017147] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 12/15/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022] Open
Abstract
The emergence and rapid development of single-cell technologies mark a paradigm shift in cancer research. Various technology implementations represent powerful tools to understand cellular heterogeneity, identify minor cell populations that were previously hard to detect and define, and make inferences about cell-to-cell interactions at single-cell resolution. Applied to lymphoma, recent advances in single-cell RNA sequencing have broadened opportunities to delineate previously underappreciated heterogeneity of malignant cell differentiation states and presumed cell of origin, and to describe the composition and cellular subsets in the ecosystem of the tumor microenvironment (TME). Clinical deployment of an expanding armamentarium of immunotherapy options that rely on targets and immune cell interactions in the TME emphasizes the requirement for a deeper understanding of immune biology in lymphoma. In particular, classic Hodgkin lymphoma (CHL) can serve as a study paradigm because of its unique TME, featuring infrequent tumor cells among numerous nonmalignant immune cells with significant interpatient and intrapatient variability. Synergistic to advances in single-cell sequencing, multiplexed imaging techniques have added a new dimension to describing cellular cross talk in various lymphoma entities. Here, we comprehensively review recent progress using novel single-cell technologies with an emphasis on the TME biology of CHL as an application field. The described technologies, which are applicable to peripheral blood, fresh tissues, and formalin-fixed samples, hold the promise to accelerate biomarker discovery for novel immunotherapeutic approaches and to serve as future assay platforms for biomarker-informed treatment selection, including immunotherapies.
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Affiliation(s)
- Tomohiro Aoki
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BC, Canada
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Christian Steidl
- Centre for Lymphoid Cancer, British Columbia Cancer, Vancouver, BC, Canada
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
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26
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Gutiérrez-Melo N, Baumjohann D. T follicular helper cells in cancer. Trends Cancer 2023; 9:309-325. [PMID: 36642575 DOI: 10.1016/j.trecan.2022.12.007] [Citation(s) in RCA: 45] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/18/2022] [Accepted: 12/19/2022] [Indexed: 01/15/2023]
Abstract
T follicular helper (Tfh) cells provide essential help to B cells for effective antibody-mediated immune responses. Although the crucial function of these CD4+ T cells in infection and vaccination is well established, their involvement in cancer is only beginning to emerge. Increased numbers of Tfh cells in Tfh cell-derived or B cell-associated malignancies are often associated with an unfavorable outcome, whereas in various solid organ tumor types of non-lymphocytic origin, their presence frequently coincides with a better prognosis. We discuss recent advances in understanding how Tfh cell crosstalk with B cells and CD8+ T cells in secondary and tertiary lymphoid structures (TLS) enhances antitumor immunity, but may also exacerbate immune-related adverse events (irAEs) such as autoimmunity during immune checkpoint blockade (ICB) and cancer immunotherapy.
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Affiliation(s)
- Nicolás Gutiérrez-Melo
- Medical Clinic III for Oncology, Hematology, Immuno-Oncology, and Rheumatology, University Hospital Bonn, University of Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Dirk Baumjohann
- Medical Clinic III for Oncology, Hematology, Immuno-Oncology, and Rheumatology, University Hospital Bonn, University of Bonn, Venusberg-Campus 1, 53127 Bonn, Germany.
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27
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Cao Q, Liu D, Chen Z, Wang M, Wu M, Zeng G. Upregulated X-C motif chemokine ligand 2 (XCL2) is associated with poor prognosis and increased immune infiltration in clear cell renal cell carcinoma. Cell Signal 2023; 102:110556. [PMID: 36503163 DOI: 10.1016/j.cellsig.2022.110556] [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: 09/26/2022] [Revised: 11/17/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022]
Abstract
BACKGROUND Clear cell renal cell carcinoma (ccRCC) is one of the most popular malignant carcinomas in the genitourinary system. As a novel tumor-related gene, X-C Motif Chemokine Ligand 2 (XCL2) was up-regulated in ccRCC. The current study aims to reveal the functional activity of XCL2 in ccRCC. METHODS The transcriptome profiling, clinical parameters, and simple nucleotide variation profiles of ccRCC samples were obtained from the Cancer Genome Atlas (TCGA) database. The survival analysis, multivariate/univariate Cox analysis, correlation analysis, gene set enrichment analysis (GSEA), and tumor mutation burden (TMB) analysis were performed. Next, immune cell infiltration and immune functions were analyzed. Finally, the functions of XCL2 were investigated in Caki-1 and 786-O cells. RESULTS Upregulated XCL2 was associated with worse overall survival of ccRCC and correlated to age, grade, stage, and T stage. Age, grade, and XCL2 were independent prognostic factors. Significant enrichment in apoptosis, DNA replication, and immune response was demonstrated by GSEA. XCL2 was not only tightly associated with immune cell infiltration, but also significantly linked with several immune functions. Moreover, patients, who had higher XCL2 expression, owned higher levels of TMB. Interestingly, XCL2 was positively correlated with common immune checkpoints. In vitro, XCL2 could inhibit apoptosis, and promote proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT) of Caki-1 and 786-O cells. CONCLUSIONS In general, the current study suggested that XCL2 may participate in the progression of ccRCC. Importantly, XCL2 may be a potential new target of immunotherapy.
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Affiliation(s)
- Qingqiong Cao
- Department of Ultrasound, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Daoquan Liu
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Zhao Chen
- Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Min Wang
- Department of Plastic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China.
| | - Meng Wu
- Department of Ultrasound, Zhongnan Hospital of Wuhan University, Wuhan, China.
| | - Guang Zeng
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China.
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28
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Gordon MJ, Smith MR, Nastoupil LJ. Follicular lymphoma: The long and winding road leading to your cure? Blood Rev 2023; 57:100992. [PMID: 35908982 DOI: 10.1016/j.blre.2022.100992] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 07/18/2022] [Accepted: 07/20/2022] [Indexed: 01/28/2023]
Abstract
Follicular lymphoma, the most common indolent lymphoma, though highly responsive to therapy is coupled with multiple relapses for the majority of patients. Advances in biologic understanding of molecular events in lymphoma cells and the tumor microenvironment, along with novel cellular and targeted therapies, suggest this may soon change. Here we first review the development of the molecular concepts and classification of follicular lymphoma, along with therapeutic development of treatments based on chemotherapy plus monoclonal antibodies targeting CD20. We then focus on developments over the last decade in further defining follicular lymphoma pathophysiology, leading to targeted therapeutics, as well as novel immunotherapeutic strategies effective against B cell lymphomas including follicular, particularly patients with advanced stage disease. Additional alterations beyond the hallmark t(14;18) translocation are necessary for development of follicular lymphoma. Epigenetic mutations are almost universally identified in follicular lymphoma, most commonly involving histone-lysine N-methyltransferase 2D (KMT2D, the histone acetyltransferases, cAMP response element-binding protein binding protein (CREBBP) and E1A binding protein P300 (EP300) and the histone methyltransferase enhancer of zeste homologue 2 (EZH2). Mutations are also commonly identified in other proliferation/survival pathways such as B-cell receptor, RAS, mTOR and JAK-STAT pathways, as well as immune escape mutations. The host immune response plays a key role as well, based on studies correlating various immune cell subsets and gene expression signatures with outcomes. Over the last decade, many therapeutic options beyond the commonly used bendamustine-rituximab induction regimen have become available or are being investigated. We focus on these newer agents in the relapsed setting. New antibody-based agents include the naked CD19 directed antibody tafasitamab, the CD79b directed antibody drug conjugate (ADC) polatuzumab vedotin and the CD47 directed antibody magrolimab that targets macrophages rather than FL cells directly. Immune modulation by lenalidomide has moved to earlier lines of therapy and in combinations. Several small molecule inhibitors of proliferation signal pathways involving PI3kinase and BTK have activity against FL. Apoptotic pathway modulators also have activity. With increasing recognition of the high rate of epigenetic mutations in FL, HDAC inhibition has a role. More importantly, the EZH2 inhibitor tazemetostat is FDA approved for FL after 2 prior lines of therapy. The most exciting data currently involve immune attack against follicular lymphoma by chimeric antigen receptor T-cells (CART) or bispecific antibody constructs. Given these multiple potentially non-crossreactive mechanisms, studies of rationally designed combination strategies hold the promise of improving outcomes and possibly cure of follicular lymphoma.
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Affiliation(s)
- Max J Gordon
- Dept. of Lymphoma & Myeloma, MD Anderson Cancer Center, Houston, TX, USA.
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29
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Perrett M, Edmondson C, Okosun J. Biology of follicular lymphoma: insights and windows of clinical opportunity. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2022; 2022:688-694. [PMID: 36485095 PMCID: PMC9820323 DOI: 10.1182/hematology.2022000361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Follicular lymphoma (FL) is a heterogeneous disease, both clinically and biologically. The biological behavior and development of FL is a culmination of complex multistep processes underpinned by genetic and nongenetic determinants. Epigenetic deregulation through recurrent genetic alterations is now a recognized major biological hallmark of FL, alongside the t(14;18) translocation. In parallel, there is a strong interplay between the lymphoma B cells and the immune microenvironment, with the microenvironment serving as a critical enabler by creating a tumor-supportive niche and modulating the immune response to favor survival of the malignant B cells. A further layer of complexity arises from the biological heterogeneity that occurs between patients and within an individual, both over the course of the disease and at different sites of disease involvement. Altogether, taking the first steps to bridge the understanding of these various biological components and how to evaluate these clinically may aid and inform future strategies, including logical therapeutic interventions, risk stratification, therapy selection, and disease monitoring.
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Affiliation(s)
- Megan Perrett
- Centre for Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London, UK
| | - Carina Edmondson
- Centre for Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London, UK
| | - Jessica Okosun
- Centre for Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London, UK
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30
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de Leval L, Alizadeh AA, Bergsagel PL, Campo E, Davies A, Dogan A, Fitzgibbon J, Horwitz SM, Melnick AM, Morice WG, Morin RD, Nadel B, Pileri SA, Rosenquist R, Rossi D, Salaverria I, Steidl C, Treon SP, Zelenetz AD, Advani RH, Allen CE, Ansell SM, Chan WC, Cook JR, Cook LB, d’Amore F, Dirnhofer S, Dreyling M, Dunleavy K, Feldman AL, Fend F, Gaulard P, Ghia P, Gribben JG, Hermine O, Hodson DJ, Hsi ED, Inghirami G, Jaffe ES, Karube K, Kataoka K, Klapper W, Kim WS, King RL, Ko YH, LaCasce AS, Lenz G, Martin-Subero JI, Piris MA, Pittaluga S, Pasqualucci L, Quintanilla-Martinez L, Rodig SJ, Rosenwald A, Salles GA, San-Miguel J, Savage KJ, Sehn LH, Semenzato G, Staudt LM, Swerdlow SH, Tam CS, Trotman J, Vose JM, Weigert O, Wilson WH, Winter JN, Wu CJ, Zinzani PL, Zucca E, Bagg A, Scott DW. Genomic profiling for clinical decision making in lymphoid neoplasms. Blood 2022; 140:2193-2227. [PMID: 36001803 PMCID: PMC9837456 DOI: 10.1182/blood.2022015854] [Citation(s) in RCA: 61] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 08/15/2022] [Indexed: 01/28/2023] Open
Abstract
With the introduction of large-scale molecular profiling methods and high-throughput sequencing technologies, the genomic features of most lymphoid neoplasms have been characterized at an unprecedented scale. Although the principles for the classification and diagnosis of these disorders, founded on a multidimensional definition of disease entities, have been consolidated over the past 25 years, novel genomic data have markedly enhanced our understanding of lymphomagenesis and enriched the description of disease entities at the molecular level. Yet, the current diagnosis of lymphoid tumors is largely based on morphological assessment and immunophenotyping, with only few entities being defined by genomic criteria. This paper, which accompanies the International Consensus Classification of mature lymphoid neoplasms, will address how established assays and newly developed technologies for molecular testing already complement clinical diagnoses and provide a novel lens on disease classification. More specifically, their contributions to diagnosis refinement, risk stratification, and therapy prediction will be considered for the main categories of lymphoid neoplasms. The potential of whole-genome sequencing, circulating tumor DNA analyses, single-cell analyses, and epigenetic profiling will be discussed because these will likely become important future tools for implementing precision medicine approaches in clinical decision making for patients with lymphoid malignancies.
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Affiliation(s)
- Laurence de Leval
- Institute of Pathology, Department of Laboratory Medicine and Pathology, Lausanne University Hospital and Lausanne University, Lausanne, Switzerland
| | - Ash A. Alizadeh
- Division of Oncology, Department of Medicine, Stanford University, Stanford, CA
- Stanford Cancer Institute, Stanford University, Stanford, CA
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University, Stanford, CA
- Division of Hematology, Department of Medicine, Stanford University, Stanford, CA
| | - P. Leif Bergsagel
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Phoenix, AZ
| | - Elias Campo
- Haematopathology Section, Hospital Clínic, Institut d'Investigaciones Biomèdiques August Pi I Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain
| | - Andrew Davies
- Centre for Cancer Immunology, University of Southampton, Southampton, United Kingdom
| | - Ahmet Dogan
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Jude Fitzgibbon
- Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Steven M. Horwitz
- Lymphoma Service, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Ari M. Melnick
- Department of Medicine, Weill Cornell Medicine, New York, NY
| | - William G. Morice
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Ryan D. Morin
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC, Canada
- Genome Sciences Centre, BC Cancer, Vancouver, BC, Canada
- BC Cancer Centre for Lymphoid Cancer, Vancouver, BC, Canada
| | - Bertrand Nadel
- Aix Marseille University, CNRS, INSERM, CIML, Marseille, France
| | - Stefano A. Pileri
- Haematopathology Division, IRCCS, Istituto Europeo di Oncologia, IEO, Milan, Italy
| | - Richard Rosenquist
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
- Clinical Genetics, Karolinska University Laboratory, Karolinska University Hospital, Solna, Sweden
| | - Davide Rossi
- Institute of Oncology Research and Oncology Institute of Southern Switzerland, Faculty of Biomedical Sciences, Università della Svizzera Italiana, Bellinzona, Switzerland
| | - Itziar Salaverria
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Christian Steidl
- Centre for Lymphoid Cancer, BC Cancer and University of British Columbia, Vancouver, Canada
| | | | - Andrew D. Zelenetz
- Lymphoma Service, Memorial Sloan Kettering Cancer Center, New York, NY
- Department of Medicine, Weill Cornell Medicine, New York, NY
| | - Ranjana H. Advani
- Division of Oncology, Department of Medicine, Stanford University, Stanford, CA
| | - Carl E. Allen
- Division of Pediatric Hematology-Oncology, Baylor College of Medicine, Houston, TX
| | | | - Wing C. Chan
- Department of Pathology, City of Hope National Medical Center, Duarte, CA
| | - James R. Cook
- Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH
| | - Lucy B. Cook
- Centre for Haematology, Imperial College London, London, United Kingdom
| | - Francesco d’Amore
- Department of Hematology, Aarhus University Hospital, Aarhus, Denmark
| | - Stefan Dirnhofer
- Institute of Medical Genetics and Pathology, University Hospital Basel, University of Basel, Basel, Switzerland
| | | | - Kieron Dunleavy
- Division of Hematology and Oncology, Georgetown Lombardi Comprehensive Cancer Centre, Georgetown University Hospital, Washington, DC
| | - Andrew L. Feldman
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Falko Fend
- Institute of Pathology and Neuropathology, Eberhard Karls University of Tübingen and Comprehensive Cancer Center, University Hospital Tübingen, Tübingen, Germany
| | - Philippe Gaulard
- Department of Pathology, University Hospital Henri Mondor, AP-HP, Créteil, France
- Faculty of Medicine, IMRB, INSERM U955, University of Paris-Est Créteil, Créteil, France
| | - Paolo Ghia
- Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele, Milan, Italy
| | - John G. Gribben
- Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Olivier Hermine
- Service D’hématologie, Hôpital Universitaire Necker, Université René Descartes, Assistance Publique Hôpitaux de Paris, Paris, France
| | - Daniel J. Hodson
- Wellcome MRC Cambridge Stem Cell Institute, Cambridge Biomedical Campus, Cambridge, United Kingdom
- Department of Haematology, University of Cambridge, Cambridge, United Kingdom
| | - Eric D. Hsi
- Department of Pathology, Wake Forest School of Medicine, Winston-Salem, NC
| | - Giorgio Inghirami
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY
| | - Elaine S. Jaffe
- Hematopathology Section, Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Kennosuke Karube
- Department of Pathology and Laboratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Keisuke Kataoka
- Division of Molecular Oncology, National Cancer Center Research Institute, Toyko, Japan
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Wolfram Klapper
- Hematopathology Section and Lymph Node Registry, Department of Pathology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Won Seog Kim
- Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, South Korea
| | - Rebecca L. King
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Young H. Ko
- Department of Pathology, Cheju Halla General Hospital, Jeju, Korea
| | | | - Georg Lenz
- Department of Medicine A, Hematology, Oncology and Pneumology, University Hospital Muenster, Muenster, Germany
| | - José I. Martin-Subero
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
| | - Miguel A. Piris
- Department of Pathology, Jiménez Díaz Foundation University Hospital, CIBERONC, Madrid, Spain
| | - Stefania Pittaluga
- Hematopathology Section, Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Laura Pasqualucci
- Institute for Cancer Genetics, Columbia University, New York, NY
- Department of Pathology & Cell Biology, Columbia University, New York, NY
- The Herbert Irving Comprehensive Cancer Center, Columbia University, New York, NY
| | - Leticia Quintanilla-Martinez
- Institute of Pathology and Neuropathology, Eberhard Karls University of Tübingen and Comprehensive Cancer Center, University Hospital Tübingen, Tübingen, Germany
| | - Scott J. Rodig
- Department of Pathology, Brigham and Women’s Hospital, Boston, MA
| | | | - Gilles A. Salles
- Lymphoma Service, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Jesus San-Miguel
- Clínica Universidad de Navarra, Navarra, Cancer Center of University of Navarra, Cima Universidad de NavarraI, Instituto de Investigacion Sanitaria de Navarra, Centro de Investigación Biomédica en Red de Céncer, Pamplona, Spain
| | - Kerry J. Savage
- Centre for Lymphoid Cancer, BC Cancer and University of British Columbia, Vancouver, Canada
| | - Laurie H. Sehn
- Centre for Lymphoid Cancer, BC Cancer and University of British Columbia, Vancouver, Canada
| | - Gianpietro Semenzato
- Department of Medicine, University of Padua and Veneto Institute of Molecular Medicine, Padova, Italy
| | - Louis M. Staudt
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Steven H. Swerdlow
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | | | - Judith Trotman
- Haematology Department, Concord Repatriation General Hospital, Sydney, Australia
| | - Julie M. Vose
- Department of Internal Medicine, Division of Hematology-Oncology, University of Nebraska Medical Center, Omaha, NE
| | - Oliver Weigert
- Department of Medicine III, LMU Hospital, Munich, Germany
| | - Wyndham H. Wilson
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Jane N. Winter
- Feinberg School of Medicine, Northwestern University, Chicago, IL
| | | | - Pier L. Zinzani
- IRCCS Azienda Ospedaliero-Universitaria di Bologna Istitudo di Ematologia “Seràgnoli” and Dipartimento di Medicina Specialistica, Diagnostica e Sperimentale Università di Bologna, Bologna, Italy
| | - Emanuele Zucca
- Institute of Oncology Research and Oncology Institute of Southern Switzerland, Faculty of Biomedical Sciences, Università della Svizzera Italiana, Bellinzona, Switzerland
| | - Adam Bagg
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - David W. Scott
- Centre for Lymphoid Cancer, BC Cancer and University of British Columbia, Vancouver, Canada
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31
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Alsoussi WB, Malladi SK, Zhou JQ, Liu Z, Ying B, Kim W, Schmitz AJ, Lei T, Horvath SC, Sturtz AJ, McIntire KM, Evavold B, Han F, Scheaffer SM, Fox IF, Parra-Rodriguez L, Nachbagauer R, Nestorova B, Chalkias S, Farnsworth CW, Klebert MK, Pusic I, Strnad BS, Middleton WD, Teefey SA, Whelan SP, Diamond MS, Paris R, O’Halloran JA, Presti RM, Turner JS, Ellebedy AH. SARS-CoV-2 Omicron boosting induces de novo B cell response in humans. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2022:2022.09.22.509040. [PMID: 36172127 PMCID: PMC9516848 DOI: 10.1101/2022.09.22.509040] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The primary two-dose SARS-CoV-2 mRNA vaccine series are strongly immunogenic in humans, but the emergence of highly infectious variants necessitated additional doses of these vaccines and the development of new variant-derived ones 1-4 . SARS-CoV-2 booster immunizations in humans primarily recruit pre-existing memory B cells (MBCs) 5-9 . It remains unclear, however, whether the additional doses induce germinal centre (GC) reactions where reengaged B cells can further mature and whether variant-derived vaccines can elicit responses to novel epitopes specific to such variants. Here, we show that boosting with the original SARS- CoV-2 spike vaccine (mRNA-1273) or a B.1.351/B.1.617.2 (Beta/Delta) bivalent vaccine (mRNA-1273.213) induces robust spike-specific GC B cell responses in humans. The GC response persisted for at least eight weeks, leading to significantly more mutated antigen-specific MBC and bone marrow plasma cell compartments. Interrogation of MBC-derived spike-binding monoclonal antibodies (mAbs) isolated from individuals boosted with either mRNA-1273, mRNA-1273.213, or a monovalent Omicron BA.1-based vaccine (mRNA-1273.529) revealed a striking imprinting effect by the primary vaccination series, with all mAbs (n=769) recognizing the original SARS-CoV-2 spike protein. Nonetheless, using a more targeted approach, we isolated mAbs that recognized the spike protein of the SARS-CoV-2 Omicron (BA.1) but not the original SARS-CoV-2 spike from the mRNA-1273.529 boosted individuals. The latter mAbs were less mutated and recognized novel epitopes within the spike protein, suggesting a naïve B cell origin. Thus, SARS-CoV-2 boosting in humans induce robust GC B cell responses, and immunization with an antigenically distant spike can overcome the antigenic imprinting by the primary vaccination series.
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Affiliation(s)
- Wafaa B. Alsoussi
- Department of Pathology and Immunology, Washington University School of Medicine; St. Louis, MO, USA
- These authors contributed equally to this work
| | - Sameer K. Malladi
- Department of Pathology and Immunology, Washington University School of Medicine; St. Louis, MO, USA
- These authors contributed equally to this work
| | - Julian Q. Zhou
- Department of Pathology and Immunology, Washington University School of Medicine; St. Louis, MO, USA
- These authors contributed equally to this work
| | - Zhuoming Liu
- Department of Molecular Microbiology, Washington University School of Medicine; St. Louis, MO, USA
- These authors contributed equally to this work
| | - Baoling Ying
- Department of Pathology and Immunology, Washington University School of Medicine; St. Louis, MO, USA
- Department of Molecular Microbiology, Washington University School of Medicine; St. Louis, MO, USA
- These authors contributed equally to this work
| | - Wooseob Kim
- Department of Pathology and Immunology, Washington University School of Medicine; St. Louis, MO, USA
| | - Aaron J. Schmitz
- Department of Pathology and Immunology, Washington University School of Medicine; St. Louis, MO, USA
| | - Tingting Lei
- Department of Pathology and Immunology, Washington University School of Medicine; St. Louis, MO, USA
| | - Stephen C. Horvath
- Department of Pathology and Immunology, Washington University School of Medicine; St. Louis, MO, USA
| | - Alexandria J. Sturtz
- Department of Pathology and Immunology, Washington University School of Medicine; St. Louis, MO, USA
| | - Katherine M. McIntire
- Department of Pathology and Immunology, Washington University School of Medicine; St. Louis, MO, USA
| | - Birk Evavold
- Department of Pathology and Immunology, Washington University School of Medicine; St. Louis, MO, USA
| | - Fangjie Han
- Department of Emergency Medicine, Washington University School of Medicine; St. Louis, MO, USA
| | - Suzanne M. Scheaffer
- Department of Pathology and Immunology, Washington University School of Medicine; St. Louis, MO, USA
- Department of Molecular Microbiology, Washington University School of Medicine; St. Louis, MO, USA
| | - Isabella F. Fox
- Department of Pathology and Immunology, Washington University School of Medicine; St. Louis, MO, USA
| | - Luis Parra-Rodriguez
- Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine; St. Louis, MO, USA
| | | | | | | | - Christopher W. Farnsworth
- Department of Pathology and Immunology, Washington University School of Medicine; St. Louis, MO, USA
| | - Michael K. Klebert
- Infectious Disease Clinical Research Unit, Washington University School of Medicine; St. Louis, MO, USA
| | - Iskra Pusic
- Division of Oncology, Department of Medicine, Washington University School of Medicine; St. Louis, MO, USA
| | - Benjamin S. Strnad
- Mallinckrodt Institute of Radiology, Washington University School of Medicine; St. Louis, MO, USA
| | - William D. Middleton
- Mallinckrodt Institute of Radiology, Washington University School of Medicine; St. Louis, MO, USA
| | - Sharlene A. Teefey
- Mallinckrodt Institute of Radiology, Washington University School of Medicine; St. Louis, MO, USA
| | - Sean P.J. Whelan
- Department of Molecular Microbiology, Washington University School of Medicine; St. Louis, MO, USA
| | - Michael S. Diamond
- Department of Pathology and Immunology, Washington University School of Medicine; St. Louis, MO, USA
- Department of Molecular Microbiology, Washington University School of Medicine; St. Louis, MO, USA
- Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine; St. Louis, MO, USA
- Center for Vaccines and Immunity to Microbial Pathogens, Washington University School of Medicine; St. Louis, MO, USA
- The Andrew M. and Jane M. Bursky Center for Human Immunology & Immunotherapy Programs, Washington University School of Medicine; St. Louis, MO, USA
| | | | - Jane A. O’Halloran
- Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine; St. Louis, MO, USA
- Infectious Disease Clinical Research Unit, Washington University School of Medicine; St. Louis, MO, USA
| | - Rachel M. Presti
- Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine; St. Louis, MO, USA
- Infectious Disease Clinical Research Unit, Washington University School of Medicine; St. Louis, MO, USA
- Center for Vaccines and Immunity to Microbial Pathogens, Washington University School of Medicine; St. Louis, MO, USA
- The Andrew M. and Jane M. Bursky Center for Human Immunology & Immunotherapy Programs, Washington University School of Medicine; St. Louis, MO, USA
| | - Jackson S. Turner
- Department of Pathology and Immunology, Washington University School of Medicine; St. Louis, MO, USA
| | - Ali H. Ellebedy
- Department of Pathology and Immunology, Washington University School of Medicine; St. Louis, MO, USA
- Center for Vaccines and Immunity to Microbial Pathogens, Washington University School of Medicine; St. Louis, MO, USA
- The Andrew M. and Jane M. Bursky Center for Human Immunology & Immunotherapy Programs, Washington University School of Medicine; St. Louis, MO, USA
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32
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Han G, Deng Q, Marques-Piubelli ML, Dai E, Dang M, Ma MCJ, Li X, Yang H, Henderson J, Kudryashova O, Meerson M, Isaev S, Kotlov N, Nomie KJ, Bagaev A, Parra ER, Solis Soto LM, Parmar S, Hagemeister FB, Ahmed S, Iyer SP, Samaniego F, Steiner R, Fayad L, Lee H, Fowler NH, Flowers CR, Strati P, Westin JR, Neelapu SS, Nastoupil LJ, Vega F, Wang L, Green MR. Follicular Lymphoma Microenvironment Characteristics Associated with Tumor Cell Mutations and MHC Class II Expression. Blood Cancer Discov 2022; 3:428-443. [PMID: 35687817 PMCID: PMC9894575 DOI: 10.1158/2643-3230.bcd-21-0075] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 11/02/2021] [Accepted: 06/03/2022] [Indexed: 01/01/2023] Open
Abstract
Follicular lymphoma (FL) is a B-cell malignancy with a complex tumor microenvironment that is rich in nonmalignant immune cells. We applied single-cell RNA sequencing to characterize the diverse tumor and immune cell populations of FL and identified major phenotypic subsets of FL T cells, including a cytotoxic CD4 T-cell population. We characterized four major FL subtypes with differential representation or relative depletion of distinct T-cell subsets. By integrating exome sequencing, we observed that somatic mutations are associated with, but not definitive for, reduced MHC expression on FL cells. In turn, expression of MHCII genes by FL cells was associated with significant differences in the proportions and targetable immunophenotypic characteristics of T cells. This provides a classification framework of the FL microenvironment in association with FL genotypes and MHC expression, and informs different potential immunotherapeutic strategies based upon tumor cell MHCII expression. SIGNIFICANCE We have characterized the FL-infiltrating T cells, identified cytotoxic CD4 T cells as an important component that is associated with tumor cell-intrinsic characteristics, and identified sets of targetable immune checkpoints on T cells that differed from FLs with normal versus low MHC expression. See related commentary by Melnick, p. 374. This article is highlighted in the In This Issue feature, p. 369.
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Affiliation(s)
- Guangchun Han
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Qing Deng
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | | | - Enyu Dai
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Minghao Dang
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Man Chun John Ma
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Xubin Li
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Haopeng Yang
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jared Henderson
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | | | | | | | | | | | | | - Edwin R. Parra
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Luisa M. Solis Soto
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Simrit Parmar
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Fredrick B. Hagemeister
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Sairah Ahmed
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Swaminathan P. Iyer
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Felipe Samaniego
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Raphael Steiner
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Luis Fayad
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Hun Lee
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Nathan H. Fowler
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
- BostonGene Corporation, Waltham, Massachusetts
| | - Christopher R. Flowers
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Paolo Strati
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jason R. Westin
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Sattva S. Neelapu
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Loretta J. Nastoupil
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Francisco Vega
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Linghua Wang
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
- UTHealth Graduate School of Biomedical Sciences, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Michael R. Green
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
- Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, Texas
- UTHealth Graduate School of Biomedical Sciences, The University of Texas MD Anderson Cancer Center, Houston, Texas
- Center for Cancer Epigenetics, The University of Texas MD Anderson Cancer Center, Houston, Texas
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33
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Melnick AM. Tee-ing up a New Follicular Lymphoma Classification System. Blood Cancer Discov 2022; 3:374-377. [PMID: 35917283 PMCID: PMC9445760 DOI: 10.1158/2643-3230.bcd-22-0090] [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] [Indexed: 11/16/2022] Open
Abstract
In this issue of Blood Cancer Discovery, Han and colleagues find that follicular lymphomas (FL) can be stratified into distinct classes with clinical and functional relevance based on their T-cell subset composition. Their findings further indicate that pairing of FL cell MHCII expression with specific T-cell markers may represent a useful diagnostic approach to select patients for particular immunotherapies or immune augmentation therapies independent of genetic profiling. See related article by Han et al., p. 428 (4).
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Affiliation(s)
- Ari M. Melnick
- Division of Hematology and Oncology, Department of Medicine, Weill Cornell Medicine, New York, New York
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34
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EBV-positive follicular lymphoma and concurrent EBV-negative diffuse large B-cell lymphoma illustrating branched evolution model and “Hit and Run” hypothesis. J Hematop 2022. [DOI: 10.1007/s12308-022-00502-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022] Open
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35
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Mentz M, Keay W, Strobl CD, Antoniolli M, Adolph L, Heide M, Lechner A, Haebe S, Osterode E, Kridel R, Ziegenhain C, Wange LE, Hildebrand JA, Shree T, Silkenstedt E, Staiger AM, Ott G, Horn H, Szczepanowski M, Richter J, Levy R, Rosenwald A, Enard W, Zimber-Strobl U, von Bergwelt-Baildon M, Hiddemann W, Klapper W, Schmidt-Supprian M, Rudelius M, Bararia D, Passerini V, Weigert O. PARP14 is a novel target in STAT6 mutant follicular lymphoma. Leukemia 2022; 36:2281-2292. [PMID: 35851155 PMCID: PMC9417990 DOI: 10.1038/s41375-022-01641-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 06/21/2022] [Accepted: 06/29/2022] [Indexed: 12/02/2022]
Abstract
The variable clinical course of follicular lymphoma (FL) is determined by the molecular heterogeneity of tumor cells and complex interactions within the tumor microenvironment (TME). IL-4 producing follicular helper T cells (TFH) are critical components of the FL TME. Binding of IL-4 to IL-4R on FL cells activates JAK/STAT signaling. We identified STAT6 mutations (STAT6MUT) in 13% of FL (N = 33/258), all clustered within the DNA binding domain. Gene expression data and immunohistochemistry showed upregulation of IL-4/STAT6 target genes in STAT6MUT FL, including CCL17, CCL22, and FCER2 (CD23). Functionally, STAT6MUT was gain-of-function by serial replating phenotype in pre-B CFU assays. Expression of STAT6MUT enhanced IL-4 induced FCER2/CD23, CCL17 and CCL22 expression and was associated with nuclear accumulation of pSTAT6. RNA sequencing identified PARP14 -a transcriptional switch and co-activator of STAT6- among the top differentially upregulated genes in IL-4 stimulated STAT6MUT lymphoma cells and in STAT6MUT primary FL cells. Quantitative chromatin immunoprecipitation (qChIP) demonstrated binding of STAT6MUT but not STAT6WT to the PARP14 promotor. Reporter assays showed increased IL-4 induced transactivation activity of STAT6MUT at the PARP14 promotor, suggesting a self-reinforcing regulatory circuit. Knock-down of PARP14 or PARP-inhibition abrogated the STAT6MUT gain-of-function phenotype. Thus, our results identify PARP14 as a novel therapeutic target in STAT6MUT FL.
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Affiliation(s)
- Michael Mentz
- Department of Medicine III, Laboratory for Experimental Leukemia and Lymphoma Research (ELLF), Ludwig-Maximilians-University (LMU) Hospital, Munich, Germany
- Research Unit Gene Vectors, Helmholtz- Center Munich, German Research Center for Environmental Health, Munich, Germany
| | - William Keay
- Department of Medicine III, Laboratory for Experimental Leukemia and Lymphoma Research (ELLF), Ludwig-Maximilians-University (LMU) Hospital, Munich, Germany
| | - Carolin Dorothea Strobl
- Department of Medicine III, Laboratory for Experimental Leukemia and Lymphoma Research (ELLF), Ludwig-Maximilians-University (LMU) Hospital, Munich, Germany
| | - Martina Antoniolli
- Department of Medicine III, Laboratory for Experimental Leukemia and Lymphoma Research (ELLF), Ludwig-Maximilians-University (LMU) Hospital, Munich, Germany
| | - Louisa Adolph
- Department of Medicine III, Laboratory for Experimental Leukemia and Lymphoma Research (ELLF), Ludwig-Maximilians-University (LMU) Hospital, Munich, Germany
| | - Michael Heide
- Department of Medicine III, Laboratory for Experimental Leukemia and Lymphoma Research (ELLF), Ludwig-Maximilians-University (LMU) Hospital, Munich, Germany
| | - Axel Lechner
- Department of Otolaryngology, Ludwig-Maximilians-University (LMU) Hospital, Munich, Germany
| | - Sarah Haebe
- Department of Medicine III, Laboratory for Experimental Leukemia and Lymphoma Research (ELLF), Ludwig-Maximilians-University (LMU) Hospital, Munich, Germany
- Division of Oncology, Department of Medicine, School of Medicine, Stanford, CA, USA
| | - Elisa Osterode
- Department of Medicine III, Laboratory for Experimental Leukemia and Lymphoma Research (ELLF), Ludwig-Maximilians-University (LMU) Hospital, Munich, Germany
| | - Robert Kridel
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Christoph Ziegenhain
- Anthropology and Human Genomics, Faculty of Biology, Ludwig-Maximilians-University, Munich, Germany
| | - Lucas Esteban Wange
- Anthropology and Human Genomics, Faculty of Biology, Ludwig-Maximilians-University, Munich, Germany
| | - Johannes Adrian Hildebrand
- Department of Medicine III, Laboratory for Experimental Leukemia and Lymphoma Research (ELLF), Ludwig-Maximilians-University (LMU) Hospital, Munich, Germany
| | - Tanaya Shree
- Division of Oncology, Department of Medicine, School of Medicine, Stanford, CA, USA
| | - Elisabeth Silkenstedt
- Department of Medicine III, Laboratory for Experimental Leukemia and Lymphoma Research (ELLF), Ludwig-Maximilians-University (LMU) Hospital, Munich, Germany
| | - Annette M Staiger
- Department of Clinical Pathology, Robert Bosch Hospital, Stuttgart, Germany
- Dr. Margarete Fischer-Bosch-Institute of Clinical Pharmacology, Stuttgart and University of Tübingen, Tübingen, Germany
| | - German Ott
- Department of Clinical Pathology, Robert Bosch Hospital, Stuttgart, Germany
| | - Heike Horn
- Department of Clinical Pathology, Robert Bosch Hospital, Stuttgart, Germany
- Dr. Margarete Fischer-Bosch-Institute of Clinical Pharmacology, Stuttgart and University of Tübingen, Tübingen, Germany
| | - Monika Szczepanowski
- Institute of Pathology, Hematopathology Section, University of Schleswig-Holstein, Kiel, Germany
| | - Julia Richter
- Institute of Pathology, Hematopathology Section, University of Schleswig-Holstein, Kiel, Germany
| | - Ronald Levy
- Division of Oncology, Department of Medicine, School of Medicine, Stanford, CA, USA
| | - Andreas Rosenwald
- Institute of Pathology, University of Würzburg and Comprehensive Cancer Centre Mainfranken, Würzburg, Germany
| | - Wolfgang Enard
- Division of Oncology, Department of Medicine, School of Medicine, Stanford, CA, USA
| | - Ursula Zimber-Strobl
- Research Unit Gene Vectors, Helmholtz- Center Munich, German Research Center for Environmental Health, Munich, Germany
| | - Michael von Bergwelt-Baildon
- Department of Medicine III, Laboratory for Experimental Leukemia and Lymphoma Research (ELLF), Ludwig-Maximilians-University (LMU) Hospital, Munich, Germany
- German Cancer Consortium (DKTK), Munich, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Wolfgang Hiddemann
- Department of Medicine III, Laboratory for Experimental Leukemia and Lymphoma Research (ELLF), Ludwig-Maximilians-University (LMU) Hospital, Munich, Germany
- German Cancer Consortium (DKTK), Munich, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Wolfram Klapper
- Institute of Pathology, Hematopathology Section, University of Schleswig-Holstein, Kiel, Germany
| | - Marc Schmidt-Supprian
- German Cancer Consortium (DKTK), Munich, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
- Institute of Experimental Hematology, School of Medicine, Center for Translational Cancer Research (TranslaTUM), Technical University of Munich, Munich, Germany
| | - Martina Rudelius
- Institute of Pathology, Faculty of Medicine, Ludwig-Maximilians-University, Munich, Germany
| | - Deepak Bararia
- Department of Medicine III, Laboratory for Experimental Leukemia and Lymphoma Research (ELLF), Ludwig-Maximilians-University (LMU) Hospital, Munich, Germany
| | - Verena Passerini
- Department of Medicine III, Laboratory for Experimental Leukemia and Lymphoma Research (ELLF), Ludwig-Maximilians-University (LMU) Hospital, Munich, Germany
| | - Oliver Weigert
- Department of Medicine III, Laboratory for Experimental Leukemia and Lymphoma Research (ELLF), Ludwig-Maximilians-University (LMU) Hospital, Munich, Germany.
- German Cancer Consortium (DKTK), Munich, Germany.
- German Cancer Research Center (DKFZ), Heidelberg, Germany.
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36
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Bühler MM, Martin-Subero JI, Pan-Hammarström Q, Campo E, Rosenquist R. Towards precision medicine in lymphoid malignancies. J Intern Med 2022; 292:221-242. [PMID: 34875132 DOI: 10.1111/joim.13423] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Careful histopathologic examination remains the cornerstone in the diagnosis of the clinically and biologically heterogeneous group of lymphoid malignancies. However, recent advances in genomic and epigenomic characterization using high-throughput technologies have significantly improved our understanding of these tumors. Although no single genomic alteration is completely specific for a lymphoma entity, some alterations are highly recurrent in certain entities and thus can provide complementary diagnostic information when integrated in the hematopathological diagnostic workup. Moreover, other alterations may provide important information regarding the clinical course, that is, prognostic or risk-stratifying markers, or response to treatment, that is, predictive markers, which may allow tailoring of the patient's treatment based on (epi)genetic characteristics. In this review, we will focus on clinically relevant diagnostic, prognostic, and predictive biomarkers identified in more common types of B-cell malignancies, and discuss how diagnostic assays designed for comprehensive molecular profiling may pave the way for the implementation of precision diagnostics/medicine approaches. We will also discuss future directions in this rapidly evolving field, including the application of single-cell sequencing and other omics technologies, to decipher clonal dynamics and evolution in lymphoid malignancies.
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Affiliation(s)
- Marco M Bühler
- Department of Pathology and Molecular Pathology, University Hospital of Zurich, Zurich, Switzerland.,Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Hematopathology Section, Laboratory of Pathology, Hospital Clínic de Barcelona, University of Barcelona, Barcelona, Spain
| | - José I Martin-Subero
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Hematopathology Section, Laboratory of Pathology, Hospital Clínic de Barcelona, University of Barcelona, Barcelona, Spain.,Centro de Investigación Biomedica en Red de Cancer (CIBERONC), Madrid, Spain.,Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
| | | | - Elias Campo
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain.,Hematopathology Section, Laboratory of Pathology, Hospital Clínic de Barcelona, University of Barcelona, Barcelona, Spain.,Centro de Investigación Biomedica en Red de Cancer (CIBERONC), Madrid, Spain
| | - Richard Rosenquist
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.,Clinical Genetics, Karolinska University Laboratory, Karolinska University Hospital, Solna, Sweden
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37
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Zhang H, Liu Y, Wang B, Wang C. Interleukin 20 receptor subunit beta (IL20RB) predicts poor prognosis and regulates immune cell infiltration in clear cell renal cell carcinoma. BMC Genom Data 2022; 23:58. [PMID: 35883015 PMCID: PMC9327257 DOI: 10.1186/s12863-022-01076-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 07/15/2022] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND AND OBJECTIVE Emerging evidence has proven the robust role of tumor mutation burden (TMB) and immune cell infiltration (ICI) in cancer immunotherapy. However, the precise effect of TMB and ICI on clear cell renal cell carcinoma (ccRCC) remains elusive and merits further investigation. Therefore, we aim to identify the TMB-related genes in predicting prognosis and to explore the potential mechanisms of the identified Interleukin 20 receptor subunit beta (IL20RB) in ICI in ccRCC. METHOD The relative information of patients with ccRCC was obtained from The Cancer Genome Atlas database (TCGA). Immune-related genes were downloaded from the Immunology Database and Analysis Portal database. Cox regression analysis was used to identify prognosis-related immune genes for ccRCC. The relationship of IL20RB expression levels with clinicopathological parameters was analyzed using the "limma" and "survival" packages. Gene Expression Omnibus (GEO) and International Cancer Genome Consortium (ICGC) databases were used as external validation. Quantitative Real-time PCR (qRT-PCR) and western blots were used to validate the expression levels of IL20RB in tumor cells. Cell counting kit-8 (CCK-8) assay and colony formation assay were used to examine the effect of IL20RB on the viability of ccRCC cells. Gene set enrichment analysis (GSEA) was introduced for the analysis of IL20RB-related signaling pathways. Tumor Immune Estimation Resource (TIMER) and Tumor and Immune System Interaction Database (TISIDB) were utilized to determine the correlation of IL20RB expression levels with tumor-infiltrating immune cells (TIICs). RESULTS IL20RB was significantly overexpressed in different ccRCC tissues and cells. High IL20RB expression in ccRCC patients was associated with short overall survival, high tumor grade, and advanced TNM stage. After knockdown of IL20RB with small interfering RNA (siRNA) technology, ccRCC cells' proliferation was significantly attenuated. Moreover, overexpression of IL20RB could increase the infiltration level of several immune cells, especially T follicular helper cells (Tfh), and overexpressed Tfh cells were correlated with poor prognosis in ccRCC. CONCLUSIONS IL20RB may function as an immune-associated therapeutic target for it determines cancer progression and regulates immune cell infiltration in ccRCC.
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Affiliation(s)
- Haoxun Zhang
- The First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
| | - Yiwen Liu
- The First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
| | - Bowen Wang
- The First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China
| | - Chunyang Wang
- The First Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilongjiang, China.
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38
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Isaev K, Liu T, Bakhtiari M, Tong K, Goswami R, Lam B, Lungu I, Krzyzanowski PM, Oza A, Dhani N, Prica A, Crump M, Kridel R. In-depth characterization of intratumoral heterogeneity in refractory B-cell non-Hodgkin lymphoma through the lens of a Research Autopsy Program. Haematologica 2022; 108:196-206. [PMID: 35734926 PMCID: PMC9827161 DOI: 10.3324/haematol.2022.280900] [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: 02/23/2022] [Indexed: 02/05/2023] Open
Abstract
Intratumoral heterogeneity (ITH) provides the substrate for tumor evolution and treatment resistance, yet is remarkably understudied in lymphoma, due to the often limited amount of tissue that gets sampled during the routine diagnostic process, generally from a single nodal or extranodal site. Furthermore, the trajectory of how lymphoma, and especially non-Hodgkin lymphoma, spreads throughout the human body remains poorly understood. Here, we present a detailed characterization of ITH by applying whole-genome sequencing to spatially separated tumor samples harvested at the time of autopsy (n=24) and/or diagnosis (n=3) in three patients presenting with refractory B-cell non-Hodgkin lymphoma. Through deconvolution of bulk samples into clonal mixtures and inference of phylogenetic trees, we found evidence that polyclonal seeding underlies tumor dissemination in lymphoma. We identify mutation signatures associated with ancestral and descendant clones. In our series of patients with highly refractory lymphoma, the determinants of resistance were often harbored by founding clones, although there was also evidence of positive selection of driver mutations, likely under the influence of therapy. Lastly, we show that circulating tumor DNA is suitable for the detection of ancestral mutations but may miss a significant proportion of private mutations that can be detected in tissue. Our study clearly shows the existence of intricate patterns of regional and anatomical evolution that can only be disentangled through multi-regional tumor tissue profiling.
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Affiliation(s)
- Keren Isaev
- Princess Margaret Cancer Center - University Health Network
| | - Ting Liu
- Princess Margaret Cancer Center - University Health Network
| | | | - Kit Tong
- Princess Margaret Cancer Center - University Health Network
| | | | - Bernard Lam
- Ontario Institute for Cancer Research, Toronto, ON, Canada
| | - Ilinca Lungu
- Ontario Institute for Cancer Research, Toronto, ON, Canada
| | | | - Amit Oza
- Princess Margaret Cancer Center - University Health Network
| | - Neesha Dhani
- Princess Margaret Cancer Center - University Health Network
| | - Anca Prica
- Princess Margaret Cancer Center - University Health Network
| | - Michael Crump
- Princess Margaret Cancer Center - University Health Network
| | - Robert Kridel
- Princess Margaret Cancer Center - University Health Network,R. Kridel
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39
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Kim W, Zhou JQ, Horvath SC, Schmitz AJ, Sturtz AJ, Lei T, Liu Z, Kalaidina E, Thapa M, Alsoussi WB, Haile A, Klebert MK, Suessen T, Parra-Rodriguez L, Mudd PA, Whelan SPJ, Middleton WD, Teefey SA, Pusic I, O'Halloran JA, Presti RM, Turner JS, Ellebedy AH. Germinal centre-driven maturation of B cell response to mRNA vaccination. Nature 2022; 604:141-145. [PMID: 35168246 PMCID: PMC9204750 DOI: 10.1038/s41586-022-04527-1] [Citation(s) in RCA: 177] [Impact Index Per Article: 88.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 02/04/2022] [Indexed: 02/06/2023]
Abstract
Germinal centres (GC) are lymphoid structures in which B cells acquire affinity-enhancing somatic hypermutations (SHM), with surviving clones differentiating into memory B cells (MBCs) and long-lived bone marrow plasma cells1-5 (BMPCs). SARS-CoV-2 mRNA vaccination induces a persistent GC response that lasts for at least six months in humans6-8. The fate of responding GC B cells as well as the functional consequences of such persistence remain unknown. Here, we detected SARS-CoV-2 spike protein-specific MBCs in 42 individuals who had received two doses of the SARS-CoV-2 mRNA vaccine BNT162b2 six month earlier. Spike-specific IgG-secreting BMPCs were detected in 9 out of 11 participants. Using a combined approach of sequencing the B cell receptors of responding blood plasmablasts and MBCs, lymph node GC B cells and plasma cells and BMPCs from eight individuals and expression of the corresponding monoclonal antibodies, we tracked the evolution of 1,540 spike-specific B cell clones. On average, early blood spike-specific plasmablasts exhibited the lowest SHM frequencies. By contrast, SHM frequencies of spike-specific GC B cells increased by 3.5-fold within six months after vaccination. Spike-specific MBCs and BMPCs accumulated high levels of SHM, which corresponded with enhanced anti-spike antibody avidity in blood and enhanced affinity as well as neutralization capacity of BMPC-derived monoclonal antibodies. We report how the notable persistence of the GC reaction induced by SARS-CoV-2 mRNA vaccination in humans culminates in affinity-matured long-term antibody responses that potently neutralize the virus.
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Affiliation(s)
- Wooseob Kim
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Julian Q Zhou
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Stephen C Horvath
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Aaron J Schmitz
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Alexandria J Sturtz
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Tingting Lei
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Zhuoming Liu
- Department of Molecular Microbiology, Washington University School of Medicine, St Louis, MO, USA
| | - Elizaveta Kalaidina
- Division of Allergy and Immunology, Department of Internal Medicine, Washington University School of Medicine, St Louis, MO, USA
| | - Mahima Thapa
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Wafaa B Alsoussi
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Alem Haile
- Clinical Trials Unit, Washington University School of Medicine, St Louis, MO, USA
| | - Michael K Klebert
- Clinical Trials Unit, Washington University School of Medicine, St Louis, MO, USA
| | - Teresa Suessen
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, MO, USA
| | - Luis Parra-Rodriguez
- Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine, St Louis, MO, USA
| | - Philip A Mudd
- Department of Emergency Medicine, Washington University School of Medicine, St Louis, MO, USA
- Center for Vaccines and Immunity to Microbial Pathogens, Washington University School of Medicine, St Louis, MO, USA
| | - Sean P J Whelan
- Department of Molecular Microbiology, Washington University School of Medicine, St Louis, MO, USA
| | - William D Middleton
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, MO, USA
| | - Sharlene A Teefey
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, MO, USA
| | - Iskra Pusic
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St Louis, MO, USA
| | - Jane A O'Halloran
- Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine, St Louis, MO, USA
| | - Rachel M Presti
- Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine, St Louis, MO, USA
- Center for Vaccines and Immunity to Microbial Pathogens, Washington University School of Medicine, St Louis, MO, USA
| | - Jackson S Turner
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Ali H Ellebedy
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA.
- Center for Vaccines and Immunity to Microbial Pathogens, Washington University School of Medicine, St Louis, MO, USA.
- The Andrew M. and Jane M. Bursky Center for Human Immunology and Immunotherapy Programs, Washington University School of Medicine, St Louis, MO, USA.
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40
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Concurrent Composite Lymphomas Collectively Bearing Three Diagnostic Entities of Shared Clonal Origin. Hemasphere 2022; 6:e705. [PMID: 35372792 PMCID: PMC8966960 DOI: 10.1097/hs9.0000000000000705] [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: 07/02/2021] [Accepted: 03/01/2022] [Indexed: 12/03/2022] Open
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41
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Mooney KL, Czerwinski DK, Shree T, Frank MJ, Haebe S, Martin BA, Testa S, Levy R, Long SR. Serial FNA allows direct sampling of malignant and infiltrating immune cells in patients with B-cell lymphoma receiving immunotherapy. Cancer Cytopathol 2022; 130:231-237. [PMID: 34780125 PMCID: PMC8897258 DOI: 10.1002/cncy.22531] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 11/01/2021] [Accepted: 11/02/2021] [Indexed: 11/05/2022]
Abstract
BACKGROUND Fine-needle aspiration (FNA) is used to diagnose malignancies, recurrences, and metastases. The procedure is quick and well tolerated and can be facilitated by ultrasound guidance. METHODS This article describes the authors' experience in using serial FNA to harvest cellular material during 4 clinical trials of immunotherapy by in situ vaccination in patients with low-grade lymphoma. RESULTS Two hundred ninety-six FNA samples were collected from 44 patients over a span of approximately 6 weeks for each patient. Samples were sufficient in quantity and quality to be analyzed by flow cytometry and/or single-cell messenger RNA sequencing. FNA samples yielded an average of 12 × 106 cells with a mean cellular viability of 86%. Material collected from the tumor lymph nodes differed significantly in the proportions and phenotypes of cellular populations in comparison with matched peripheral blood samples. A comparison of flow cytometry results obtained by FNA directly from the patient and by FNA performed ex vivo and a dissociation of the same lymph node after surgical excision confirmed that FNA sampling of the patient accurately represented the tumor and the microenvironment. An analysis of the FNA samples from immunotherapy-treated target lymph nodes versus nodes from nontreated tumor sites provided insight into the impact of specific immunotherapy regimens. CONCLUSIONS This is the largest study describing the use of serial FNA sampling to harvest cellular material during immunotherapy clinical trials. The success of this technique opens the door for FNA sampling to expand significantly future investigations of the dynamic effects of investigational agents, be they immunotherapies or targeted therapies.
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Affiliation(s)
| | | | - Tanaya Shree
- Stanford University: Department of Medicine, Division of Oncology
| | - Matthew J. Frank
- Stanford University: Department of Medicine, Division of Oncology
| | - Sarah Haebe
- Stanford University: Department of Medicine, Division of Oncology
| | | | - Stefano Testa
- Stanford University: Department of Medicine, Division of Oncology
| | - Ronald Levy
- Stanford University: Department of Medicine, Division of Oncology
| | - Steven R. Long
- University of California, San Francisco, Department of Pathology
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Amin R, Braza MS. The follicular lymphoma epigenome regulates its microenvironment. J Exp Clin Cancer Res 2022; 41:21. [PMID: 35022084 PMCID: PMC8753841 DOI: 10.1186/s13046-021-02234-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 12/21/2021] [Indexed: 11/10/2022] Open
Abstract
Follicular lymphoma (FL) is a B-cell non-Hodgkin lymphoma of germinal center (GC) origin with a distinctive tumor microenvironment (TME) and a unique spectrum of mutations. Despite the important therapeutic advances, FL is still incurable. During B-cell development, the GC reaction is a complex multistep process in which epigenetic regulators dynamically induce or suppress transcriptional programs. In FL, epigenetic gene mutations perturb the regulation of these programs, changing GC B-cell function and skewing differentiation towards tumor cells and altering the microenvironment interactions. FL pathogenesis and malignant transformation are promoted by epigenetic reprogramming of GC B cells that alters the immunological synapse and niche. Despite the extensive characterization of FL epigenetic signature and TME, the functional consequences of epigenetic dysregulation on TME and niche plasticity need to be better characterized. In this review, first we describe the most frequent epigenomic alterations in FL (KMT2D, CREBBP and EZH2) that affect the immunological niche, and their potential consequences on the informational transfer between tumor B cells and their microenvironment. Then, we discuss the latest progress to harness epigenetic targets for inhibiting the FL microenvironment. Finally, we highlight unexplored research areas and outstanding questions that should be considered for a successful long-term treatment of FL.
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Affiliation(s)
- Rada Amin
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE, USA.
| | - Mounia S Braza
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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43
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Alpár D, Egyed B, Bödör C, Kovács GT. Single-Cell Sequencing: Biological Insight and Potential Clinical Implications in Pediatric Leukemia. Cancers (Basel) 2021; 13:5658. [PMID: 34830811 PMCID: PMC8616124 DOI: 10.3390/cancers13225658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 11/05/2021] [Accepted: 11/09/2021] [Indexed: 01/15/2023] Open
Abstract
Single-cell sequencing (SCS) provides high-resolution insight into the genomic, epigenomic, and transcriptomic landscape of oncohematological malignancies including pediatric leukemia, the most common type of childhood cancer. Besides broadening our biological understanding of cellular heterogeneity, sub-clonal architecture, and regulatory network of tumor cell populations, SCS can offer clinically relevant, detailed characterization of distinct compartments affected by leukemia and identify therapeutically exploitable vulnerabilities. In this review, we provide an overview of SCS studies focused on the high-resolution genomic and transcriptomic scrutiny of pediatric leukemia. Our aim is to investigate and summarize how different layers of single-cell omics approaches can expectedly support clinical decision making in the future. Although the clinical management of pediatric leukemia underwent a spectacular improvement during the past decades, resistant disease is a major cause of therapy failure. Currently, only a small proportion of childhood leukemia patients benefit from genomics-driven therapy, as 15-20% of them meet the indication criteria of on-label targeted agents, and their overall response rate falls in a relatively wide range (40-85%). The in-depth scrutiny of various cell populations influencing the development, progression, and treatment resistance of different disease subtypes can potentially uncover a wider range of driver mechanisms for innovative therapeutic interventions.
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Affiliation(s)
- Donát Alpár
- HCEMM-SE Molecular Oncohematology Research Group, 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, H-1085 Budapest, Hungary; (D.A.); (B.E.); (C.B.)
| | - Bálint Egyed
- HCEMM-SE Molecular Oncohematology Research Group, 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, H-1085 Budapest, Hungary; (D.A.); (B.E.); (C.B.)
- 2nd Department of Pediatrics, Semmelweis University, H-1094 Budapest, Hungary
| | - Csaba Bödör
- HCEMM-SE Molecular Oncohematology Research Group, 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, H-1085 Budapest, Hungary; (D.A.); (B.E.); (C.B.)
| | - Gábor T. Kovács
- 2nd Department of Pediatrics, Semmelweis University, H-1094 Budapest, Hungary
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44
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Kim W, Zhou JQ, Sturtz AJ, Horvath SC, Schmitz AJ, Lei T, Kalaidina E, Thapa M, Alsoussi WB, Haile A, Klebert MK, Suessen T, Parra-Rodriguez L, Mudd PA, Middleton WD, Teefey SA, Pusic I, O’Halloran JA, Presti RM, Turner JS, Ellebedy AH. Germinal centre-driven maturation of B cell response to SARS-CoV-2 vaccination. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2021:2021.10.31.466651. [PMID: 34751268 PMCID: PMC8575138 DOI: 10.1101/2021.10.31.466651] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Germinal centres (GC) are lymphoid structures where vaccine-responding B cells acquire affinity-enhancing somatic hypermutations (SHM), with surviving clones differentiating into memory B cells (MBCs) and long-lived bone marrow plasma cells (BMPCs) 1-4 . Induction of the latter is a hallmark of durable immunity after vaccination 5 . SARS-CoV-2 mRNA vaccination induces a robust GC response in humans 6-8 , but the maturation dynamics of GC B cells and propagation of their progeny throughout the B cell diaspora have not been elucidated. Here we show that anti-SARS-CoV-2 spike (S)-binding GC B cells were detectable in draining lymph nodes for at least six months in 10 out of 15 individuals who had received two doses of BNT162b2, a SARS-CoV-2 mRNA vaccine. Six months after vaccination, circulating S-binding MBCs were detected in all participants (n=42) and S-specific IgG-secreting BMPCs were detected in 9 out of 11 participants. Using a combined approach of single-cell RNA sequencing of responding blood and lymph node B cells from eight participants and expression of the corresponding monoclonal antibodies, we tracked the evolution of 1540 S-specific B cell clones. SHM accumulated along the B cell differentiation trajectory, with early blood plasmablasts showing the lowest frequencies, followed by MBCs and lymph node plasma cells whose SHM largely overlapped with GC B cells. By three months after vaccination, the frequency of SHM within GC B cells had doubled. Strikingly, S + BMPCs detected six months after vaccination accumulated the highest level of SHM, corresponding with significantly enhanced anti-S polyclonal antibody avidity in blood at that time point. This study documents the induction of affinity-matured BMPCs after two doses of SARS-CoV-2 mRNA vaccination in humans, providing a foundation for the sustained high efficacy observed with these vaccines.
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Affiliation(s)
- Wooseob Kim
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - Julian Q. Zhou
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - Alexandria J. Sturtz
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - Stephen C. Horvath
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - Aaron J. Schmitz
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - Tingting Lei
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - Elizaveta Kalaidina
- Division of Allergy and Immunology, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Mahima Thapa
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - Wafaa B. Alsoussi
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - Alem Haile
- Clinical Trials Unit, Washington University School of Medicine, St. Louis, MO, USA
| | - Michael K. Klebert
- Clinical Trials Unit, Washington University School of Medicine, St. Louis, MO, USA
| | - Teresa Suessen
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Luis Parra-Rodriguez
- Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Philip A. Mudd
- Department of Emergency Medicine, Washington University School of Medicine, St. Louis, MO, USA
- Center for Vaccines and Immunity to Microbial Pathogens, Washington University School of Medicine, St. Louis, MO
| | - William D. Middleton
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Sharlene A. Teefey
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Iskra Pusic
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Jane A. O’Halloran
- Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Rachel M. Presti
- Division of Infectious Diseases, Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO, USA
- Center for Vaccines and Immunity to Microbial Pathogens, Washington University School of Medicine, St. Louis, MO
| | - Jackson S. Turner
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - Ali H. Ellebedy
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
- Center for Vaccines and Immunity to Microbial Pathogens, Washington University School of Medicine, St. Louis, MO
- The Andrew M. and Jane M. Bursky Center for Human Immunology & Immunotherapy Programs, Washington University School of Medicine, St. Louis, MO, USA
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45
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Intratumoral T cells have a differential impact on FDG-PET parameters in follicular lymphoma. Blood Adv 2021; 5:2644-2649. [PMID: 34156439 DOI: 10.1182/bloodadvances.2020004051] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 04/03/2020] [Indexed: 11/20/2022] Open
Abstract
Data on the prognostic impact of pretherapy 18F-fluorodeoxyglucose-positron emission tomography (FDG-PET) in follicular lymphoma (FL) is conflicting. The predictive utility of pretherapy total metabolic tumor volume (TMTV) and maximum standardized uptake value (SUVmax) on outcome appears to vary between regimens. Chemoimmunotherapies vary in the extent of T-cell depletion they induce. The role of intratumoral T cells on pretherapy FDG-PET parameters is undefined. We assessed pretherapy FDG-PET parameters and quantified intratumoral T cells by multiple methodologies. Low intratumoral T cells associated with approximately sixfold higher TMTV, and FL nodes from patients with high TMTV showed increased malignant B-cell infiltration and fewer clonally expanded intratumoral CD8+ and CD4+ T-follicular helper cells than those with low TMTV. However, fluorescently labeled glucose uptake was higher in CD4+ and CD8+ T cells than intratumoral B cells. In patients with FDG-PET performed prior to excisional biopsy, SUVmax within the subsequently excised node associated with T cells but not B cells. In summary, TMTV best reflects the malignant B-cell burden in FL, whereas intratumoral T cells influence SUVmax. This may contribute to the contradictory results between the prognostic role of different FDG-PET parameters, particularly between short- and long-term T-cell-depleting chemoimmunotherapeutic regimens. The impact of glucose uptake in intratumoral T cells should be considered when interpreting pretherapy FDG-PET in FL.
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46
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Milpied P, Gandhi AK, Cartron G, Pasqualucci L, Tarte K, Nadel B, Roulland S. Follicular lymphoma dynamics. Adv Immunol 2021; 150:43-103. [PMID: 34176559 DOI: 10.1016/bs.ai.2021.05.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Follicular lymphoma (FL) is an indolent yet challenging disease. Despite a generally favorable response to immunochemotherapy regimens, a fraction of patients does not respond or relapses early with unfavorable prognosis. For the vast majority of those who initially respond, relapses will repeatedly occur with increasing refractoriness to available treatments. Addressing the clinical challenges in FL warrants deep understanding of the nature of treatment-resistant FL cells seeding relapses, and of the biological basis of early disease progression. Great progress has been made in the last decade in the description and interrogation of the (epi)genomic landscape of FL cells, of their major dependency to the tumor microenvironment (TME), and of the stepwise lymphomagenesis process, from healthy to subclinical disease and to overt FL. A new picture is emerging, in which an ever-evolving tumor-TME duo sparks a complex and multilayered clonal and functional heterogeneity, blurring the discovery of prognostic biomarkers, patient stratification and reliable designs of risk-adapted treatments. Novel technological approaches allowing to decipher both tumor and TME heterogeneity at the single-cell level are beginning to unravel unsuspected cell dynamics and plasticity of FL cells. The upcoming drawing of a comprehensive functional picture of FL within its ecosystem holds great promise to address the unmet medical needs of this complex lymphoma.
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Affiliation(s)
- Pierre Milpied
- Aix Marseille University, CNRS, INSERM, CIML, Marseille, France
| | - Anita K Gandhi
- Translational Medicine, Bristol Myers Squibb, Summit, NJ, United States
| | - Guillaume Cartron
- Department of Hematology, Centre Hospitalier Universitaire Montpellier, UMR-CNRS 5535, Montpellier, France
| | - Laura Pasqualucci
- Pathology and Cell Biology, Institute for Cancer Genetics, Columbia University, New York City, NY, United States
| | - Karin Tarte
- INSERM U1236, Univ Rennes, EFS Bretagne, CHU Rennes, Rennes, France
| | - Bertrand Nadel
- Aix Marseille University, CNRS, INSERM, CIML, Marseille, France.
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47
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Lamaison C, Tarte K. B cell/stromal cell crosstalk in health, disease, and treatment: Follicular lymphoma as a paradigm. Immunol Rev 2021; 302:273-285. [PMID: 34060097 DOI: 10.1111/imr.12983] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/09/2021] [Accepted: 05/10/2021] [Indexed: 12/16/2022]
Abstract
Stromal cells organize specific anatomic compartments within bone marrow (BM) and secondary lymphoid organs where they finely regulate the behavior of mature normal B cells. In particular, lymphoid stromal cells (LSCs) form a phenotypically heterogeneous compartment including various cell subsets variably supporting B-cell survival, activation, proliferation, and differentiation. In turn, activated B cells trigger in-depth remodeling of LSC networks within lymph nodes (LN) and BM. Follicular lymphoma (FL) is one of the best paradigms of a B-cell neoplasia depending on a specific tumor microenvironment (TME), including cancer-associated fibroblasts (CAFs) emerging from the reprogramming of LN LSCs or poorly characterized local BM precursors. FL-CAFs support directly malignant B-cell growth and orchestrate FL permissive cell niche by contributing, through a bidirectional crosstalk, to the recruitment and polarization of immune TME subsets. Recent studies have highlighted a previously unexpected level of heterogeneity of both FL B cells and FL TME, underlined by FL-CAF plasticity. A better understanding of the signaling pathways, molecular mechanisms, and kinetic of stromal cell remodeling in FL would be useful to delineate new predictive markers and new therapeutic approaches in this still fatal malignancy.
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Affiliation(s)
- Claire Lamaison
- UMR_S 1236, Université Rennes 1, INSERM, Etablissement Français du Sang, Rennes, France
| | - Karin Tarte
- UMR_S 1236, Université Rennes 1, INSERM, Etablissement Français du Sang, Rennes, France.,SITI, Pôle de Biologie, CHU Pontchaillou, Rennes, France
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