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Kleinstern G, Boddicker NJ, O’Brien DR, Allmer C, Rabe KG, Norman AD, Griffin R, Yan H, Ma T, Call TG, Bruins L, Brown S, Bonolo de Campos C, Hanson CA, Leis JF, Ding W, Vachon CM, Kay NE, Oakes CC, Parker AS, Brander DM, Weinberg JB, Furman RR, Shanafelt TD, Cerhan JR, Parikh SA, Braggio E, Slager SL. Tumor mutational load is prognostic for progression to therapy among high-count monoclonal B-cell lymphocytosis. Blood Adv 2024; 8:2118-2129. [PMID: 38359367 PMCID: PMC11059316 DOI: 10.1182/bloodadvances.2023012242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/21/2023] [Accepted: 01/22/2024] [Indexed: 02/17/2024] Open
Abstract
ABSTRACT High-count monoclonal B-cell lymphocytosis (HCMBL) is a precursor condition to chronic lymphocytic leukemia (CLL). We have shown that among individuals with HCMBL, the CLL-International Prognostic Index (CLL-IPI) is prognostic for time-to-first therapy (TTFT). Little is known about the prognostic impact of somatically mutated genes among individuals with HCMBL. We sequenced DNA from 371 individuals with HCMBL using a targeted sequencing panel of 59 recurrently mutated genes in CLL to identify high-impact mutations. We compared the sequencing results with that of our treatment-naïve CLL cohort (N = 855) and used Cox regression to estimate hazard ratios and 95% confidence intervals (CIs) for associations with TTFT. The frequencies of any mutated genes were lower in HCMBL (52%) than CLL (70%). At 10 years, 37% of individuals with HCMBL with any mutated gene had progressed requiring treatment compared with 10% among individuals with HCMBL with no mutations; this led to 5.4-fold shorter TTFT (95% CI, 2.6-11.0) among HCMBL with any mutated gene vs none, independent of CLL-IPI. When considering individuals with low risk of progression according to CLL-IPI, those with HCMBL with any mutations had 4.3-fold shorter TTFT (95% CI, 1.6-11.8) vs those with none. Finally, when considering both CLL-IPI and any mutated gene status, we observed individuals with HCMBL who were high risk for both prognostic factors had worse prognosis than patients with low-risk CLL (ie, 5-year progression rate of 32% vs 21%, respectively). Among HCMBL, the frequency of somatically mutated genes at diagnosis is lower than that of CLL. Accounting for both the number of mutated genes and CLL-IPI can identify individuals with HCMBL with more aggressive clinical course.
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MESH Headings
- Humans
- Lymphocytosis/genetics
- Lymphocytosis/diagnosis
- Lymphocytosis/therapy
- Prognosis
- Mutation
- Male
- Female
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Leukemia, Lymphocytic, Chronic, B-Cell/mortality
- Leukemia, Lymphocytic, Chronic, B-Cell/diagnosis
- Leukemia, Lymphocytic, Chronic, B-Cell/therapy
- Middle Aged
- Aged
- Disease Progression
- B-Lymphocytes/metabolism
- B-Lymphocytes/pathology
- Adult
- Aged, 80 and over
- Lymphocyte Count
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Affiliation(s)
- Geffen Kleinstern
- School of Public Health, University of Haifa, Haifa, Israel
- Division of Computational Biology, Mayo Clinic, Rochester, MN
| | | | | | - Cristine Allmer
- Division of Clinical Trials and Biostatistics, Mayo Clinic, Rochester, MN
| | - Kari G. Rabe
- Division of Clinical Trials and Biostatistics, Mayo Clinic, Rochester, MN
| | | | - Rosalie Griffin
- Division of Computational Biology, Mayo Clinic, Rochester, MN
| | - Huihuang Yan
- Division of Computational Biology, Mayo Clinic, Rochester, MN
| | - Tao Ma
- Division of Computational Biology, Mayo Clinic, Rochester, MN
| | | | - Laura Bruins
- Department of Hematology and Oncology, Mayo Clinic, Phoenix, AZ
| | - Sochilt Brown
- Department of Hematology and Oncology, Mayo Clinic, Phoenix, AZ
| | | | - Curtis A. Hanson
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Jose F. Leis
- Department of Hematology and Oncology, Mayo Clinic, Phoenix, AZ
| | - Wei Ding
- Division of Hematology, Mayo Clinic, Rochester, MN
| | | | - Neil E. Kay
- Division of Hematology, Mayo Clinic, Rochester, MN
| | - Christopher C. Oakes
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus OH
- The Comprehensive Cancer Center, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH
| | | | | | - J. Brice Weinberg
- Department of Medicine, Duke University, Duke Cancer Institute, Durham, NC
- Department of Immunology, Duke University Medical Center, Durham, NC
- Durham Veterans Affairs Medical Center, Durham, NC
| | - Richard R. Furman
- Weill Cornell Medical College/New York Presbyterian Hospital, New York, NY
| | - Tait D. Shanafelt
- Department of Medicine, Division of Hematology, Stanford University, Stanford, CA
| | | | | | - Esteban Braggio
- Department of Hematology and Oncology, Mayo Clinic, Phoenix, AZ
| | - Susan L. Slager
- Division of Computational Biology, Mayo Clinic, Rochester, MN
- Division of Hematology, Mayo Clinic, Rochester, MN
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2
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Tausch E, López C, Stilgenbauer S, Siebert R. Genetic alterations in chronic lymphocytic leukemia and plasma cell neoplasms - a practical guide to WHO HAEM5. MED GENET-BERLIN 2024; 36:47-57. [PMID: 38835970 PMCID: PMC11006374 DOI: 10.1515/medgen-2024-2006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
The 5th edition of the World Health Organization Classification of Haematolymphoid Tumours (WHO-HAEM5) provides a revised classification of lymphoid malignancies including chronic lymphocytic leukemia (CLL) and plasma cell myeloma/multiple myeloma (PCM/MM). For both diseases the descriptions of precursor states such as monoclonal B-cell lymphocytosis and monoclonal gammopathy of uncertain significance (MGUS) have been updated including a better risk stratification model. New insights on mutational landscapes and branching evolutionary pattern were embedded as diagnostic and prognostic factors, accompanied by a revised structure for the chapter of plasma cell neoplasms. Thus, the WHO-HAEM5 leads to practical improvements of biological and clinical relevance for pathologists, clinicians, geneticists and scientists in the field of lymphoid malignancies. The present review gives an overview on the landscape of genetic alterations in CLL and plasma cell neoplasms with a focus on their impact on classification and treatment.
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Affiliation(s)
- Eugen Tausch
- Ulm University Division of CLL, Department of Internal Medicine 3 Ulm Germany
| | - Cristina López
- Institut d'Investigacions Biomèdiques August Phi i Sunyer (IDIBAPS) Barcelona Spain
| | | | - Reiner Siebert
- Ulm University and Ulm University Medical Center Institute of Human Genetics Ulm Germany
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3
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Rodrigues C, Laranjeira P, Pinho A, Silva I, Silva S, Coucelo M, Oliveira AC, Simões AT, Damásio I, Silva HM, Urbano M, Sarmento-Ribeiro AB, Geraldes C, Domingues MR, Almeida J, Criado I, Orfao A, Paiva A. CD20+ T cells in monoclonal B cell lymphocytosis and chronic lymphocytic leukemia: frequency, phenotype and association with disease progression. Front Oncol 2024; 14:1380648. [PMID: 38606091 PMCID: PMC11007165 DOI: 10.3389/fonc.2024.1380648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 03/18/2024] [Indexed: 04/13/2024] Open
Abstract
Introduction In monoclonal B cell lymphocytosis (MBL) and chronic lymphocytic leukemia (CLL), the expansion of malignant B cells disrupts the normal homeostasis and interactions between B cells and T cells, leading to immune dysregulation. CD20+ T cells are a subpopulation of T cells that appear to be involved in autoimmune diseases and cancer. Methods Here, we quantified and phenotypically characterized CD20+ T cells from MBL subjects and CLL patients using flow cytometry and correlated our findings with the B-cell receptor mutational status and other features of the disease. Results and discussion CD20+ T cells were more represented within the CD8+ T cell compartment and they showed a predominant memory Tc1 phenotype. CD20+ T cells were less represented in MBL and CLL patients vs healthy controls, particularly among those with unmutated IGVH gene. The expansion of malignant B cells was accompanied by phenotypic and functional changes in CD20+ T cells, including an increase in follicular helper CD4+ CD20+ T cells and CD20+ Tc1 cells, in addition to the expansion of the TCR Vβ 5.1 in CD4+ CD20+ T cells in CLL.
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Affiliation(s)
- Cristiana Rodrigues
- Flow Cytometry Unit, Department of Clinical Pathology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
- Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Paula Laranjeira
- Flow Cytometry Unit, Department of Clinical Pathology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Group of Environmental Genetics of Oncobiology (CIMAGO), Faculty of Medicine (FMUC), University of Coimbra, Coimbra, Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), Coimbra, Portugal
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
| | - Aryane Pinho
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
- Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal
| | - Isabel Silva
- Flow Cytometry Unit, Department of Clinical Pathology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Sandra Silva
- Flow Cytometry Unit, Department of Clinical Pathology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Margarida Coucelo
- Unidade Funcional de Hematologia Molecular, Serviço de Hematologia Clínica, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Ana Catarina Oliveira
- Unidade Funcional de Hematologia Molecular, Serviço de Hematologia Clínica, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Ana Teresa Simões
- Unidade Funcional de Hematologia Molecular, Serviço de Hematologia Clínica, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Inês Damásio
- Hematology Department, Centro Hospitalar Tondela-Viseu, Viseu, Portugal
| | | | - Mafalda Urbano
- Hematology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Ana Bela Sarmento-Ribeiro
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Group of Environmental Genetics of Oncobiology (CIMAGO), Faculty of Medicine (FMUC), University of Coimbra, Coimbra, Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), Coimbra, Portugal
- Hematology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
- University Clinics of Hematology and Oncology and Laboratory of Oncobiology and Hematology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Catarina Geraldes
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Group of Environmental Genetics of Oncobiology (CIMAGO), Faculty of Medicine (FMUC), University of Coimbra, Coimbra, Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), Coimbra, Portugal
- Hematology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
- University Clinics of Hematology and Oncology and Laboratory of Oncobiology and Hematology, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - M. Rosário Domingues
- Mass Spectrometry Centre, Associated Laboratory for Green Chemistry (LAQV-REQUIMTE), Department of Chemistry, University of Aveiro, Aveiro, Portugal
- CESAM—Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Julia Almeida
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC-University of Salamanca), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - Ignacio Criado
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC-University of Salamanca), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - Alberto Orfao
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC-University of Salamanca), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - Artur Paiva
- Flow Cytometry Unit, Department of Clinical Pathology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Group of Environmental Genetics of Oncobiology (CIMAGO), Faculty of Medicine (FMUC), University of Coimbra, Coimbra, Portugal
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), Coimbra, Portugal
- Ciências Biomédicas Laboratoriais, Instituto Politécnico de Coimbra, Escola Superior de Tecnologia da Saúde de Coimbra (ESTESC)-Coimbra Health School, Coimbra, Portugal
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Filipek-Gorzała J, Kwiecińska P, Szade A, Szade K. The dark side of stemness - the role of hematopoietic stem cells in development of blood malignancies. Front Oncol 2024; 14:1308709. [PMID: 38440231 PMCID: PMC10910019 DOI: 10.3389/fonc.2024.1308709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 01/02/2024] [Indexed: 03/06/2024] Open
Abstract
Hematopoietic stem cells (HSCs) produce all blood cells throughout the life of the organism. However, the high self-renewal and longevity of HSCs predispose them to accumulate mutations. The acquired mutations drive preleukemic clonal hematopoiesis, which is frequent among elderly people. The preleukemic state, although often asymptomatic, increases the risk of blood cancers. Nevertheless, the direct role of preleukemic HSCs is well-evidenced in adult myeloid leukemia (AML), while their contribution to other hematopoietic malignancies remains less understood. Here, we review the evidence supporting the role of preleukemic HSCs in different types of blood cancers, as well as present the alternative models of malignant evolution. Finally, we discuss the clinical importance of preleukemic HSCs in choosing the therapeutic strategies and provide the perspective on further studies on biology of preleukemic HSCs.
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Affiliation(s)
- Jadwiga Filipek-Gorzała
- Laboratory of Stem Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
- Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
- Doctoral School of Exact and Natural Sciences, Jagiellonian University, Krakow, Poland
| | - Patrycja Kwiecińska
- Laboratory of Stem Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Agata Szade
- Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Krzysztof Szade
- Laboratory of Stem Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
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5
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Kolijn PM, Späth F, Khouja M, Hengeveld PJ, van der Straten L, Darzentas N, Hultdin M, McKay JD, Pott C, Vermeulen RCH, Langerak AW. Genetic drivers in the natural history of chronic lymphocytic leukemia development as early as 16 years before diagnosis. Blood 2023; 142:1399-1403. [PMID: 37523714 PMCID: PMC10651867 DOI: 10.1182/blood.2023019609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 06/12/2023] [Accepted: 07/08/2023] [Indexed: 08/02/2023] Open
Affiliation(s)
- P. Martijn Kolijn
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC, Rotterdam, The Netherlands
- Division of Environmental Epidemiology and Veterinary Public Health, Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Florentin Späth
- Department of Radiation Sciences, Oncology, Cancer Center, Department of Hematology, Umeå University, Umeå, Sweden
| | - Mouhamad Khouja
- Second Medical Department, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Paul J. Hengeveld
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC, Rotterdam, The Netherlands
| | - Lina van der Straten
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC, Rotterdam, The Netherlands
| | - Nikos Darzentas
- Department of Hematology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Magnus Hultdin
- Department of Medical Biosciences, Pathology, Umeå University, Umeå, Sweden
| | - James D. McKay
- Genomic Epidemiology Branch, International Agency for Research on Cancer, Lyon, France
| | - Christiane Pott
- Second Medical Department, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Roel C. H. Vermeulen
- Division of Environmental Epidemiology and Veterinary Public Health, Institute for Risk Assessment Sciences, Utrecht University, Utrecht, The Netherlands
| | - Anton W. Langerak
- Department of Immunology, Laboratory Medical Immunology, Erasmus MC, Rotterdam, The Netherlands
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6
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Alshemmari SH, Siddiqui MA, Pandita R, Osman HY, Cherif H, O'Brien S, Marashi M, Al Farsi K. Evidence-Based Management of Chronic Lymphocytic Leukemia: Consensus Statements from the Gulf Region. Acta Haematol 2023; 147:260-279. [PMID: 37751733 DOI: 10.1159/000531675] [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: 09/13/2022] [Accepted: 06/16/2023] [Indexed: 09/28/2023]
Abstract
INTRODUCTION Despite recent advances in diagnosis, prognostication, and treatment options, chronic lymphocytic leukemia (CLL) is still a largely incurable disease. New concepts on diagnosis, staging, treatment, and follow-up on CLL have been incorporated throughout recent years. The lack of regional consensus guidelines has led to varying practices in the management of patients with CLL in the region. This manuscript aims to reach a consensus among expert hematologists regarding the definitions, classifications, and related practices of CLL. The experts developed a set of statements utilizing their personal experience together with the current literature on CLL management. This consensus aims to provide guidance for healthcare professionals involved in the management of CLL and serves as a step in developing regional guidelines. METHODS Eight experts responded to 50 statements regarding the diagnosis, staging, treatment, and prognosis of CLL with three potential answering alternatives ranging between agree, disagree, and abstain. This consensus adopted a modified Delphi consensus methodology. A consensus was reached when at least 75% of the agreement to the answer was reached. This manuscript presents the scientific insights of the participating attendees, panel discussions, and the supporting literature review. RESULTS Of the 50 statements, a consensus was reached on almost all statements. Statements covered CLL-related topics, including diagnostic evaluation, staging, risk assessment, different patient profiles, prognostic evaluation, treatment decisions, therapy sequences, response evaluation, complications, and CLL during the COVID-19 pandemic. CONCLUSION In recent years, CLL management has progressed significantly, with many diagnostic tests and several novel treatments becoming available. This consensus gathers decades of consolidated principles, novel research, and promising prospects for the management of this disease.
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Affiliation(s)
- Salem H Alshemmari
- Department of Medicine, Faculty of Medicine and Department of Hematology, Kuwait Cancer Control Centre, Shuwaikh, Kuwait
| | - Mustaqeem A Siddiqui
- Hematology and Oncology Division, Sheikh Shakhbout Medical City, Abu Dhabi, United Arab Emirates
- Mayo Clinic Division of Hematology, Rochester, Minnesota, USA
| | - Ramesh Pandita
- Department of Hematology, Kuwait Cancer Control Centre, Shuwaikh, Kuwait
| | - Hani Y Osman
- Oncology Department, Tawam Hospital, Al Ain, United Arab Emirates
| | - Honar Cherif
- Departmant of Hematology, National Center for Cancer Care and Research, Hamad Medical Corporation, Doha, Qatar
| | - Susan O'Brien
- Chao Family Comprehensive Cancer Center, University of California Irvine, Irvine, California, USA
| | - Mahmoud Marashi
- Department of Hematology, Dubai Healthcare Authority, Dubai, United Arab Emirates
| | - Khalil Al Farsi
- Department of Hematology, Sultan Qaboos University Hospital Muscat, Seeb, Oman
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7
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Ohmoto A, Fuji S. Prospects of early therapeutic interventions for indolent adult T-cell leukemia/lymphoma based on the chronic lymphocytic leukemia progression model. Blood Rev 2023; 60:101057. [PMID: 36828681 DOI: 10.1016/j.blre.2023.101057] [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: 01/17/2023] [Revised: 02/14/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023]
Abstract
Adult T-cell leukemia/lymphoma (ATLL) has aggressive clinical behaviors, and improving its prognosis is a great challenge. A disease progression model from asymptomatic human T-cell leukemia virus type 1 carrier to aggressive-type ATLL has been proposed, and indolent ATLL comprising a smoldering or favorable chronic type is located at the midpoint. Even the most favorable smoldering type has a 4-year overall survival rate of <60%. Although watchful waiting is pervasive in patients with indolent ATLL, early therapeutic intervention is discussed among hematologists. Indolent ATLL was once termed T-cell-derived chronic lymphocytic leukemia (CLL). Unlike indolent ATLL, several molecular-targeted agents at the initial treatment have dramatically improved CLL prognosis. Recent studies on CLL have revealed a similar progression model involving premalignant monoclonal B-cell lymphocytosis (MBL). In particular, individuals with high-count MBL have an increased lymphoma risk. Considering the unsatisfactory long-term prognosis of indolent ATLL, further treatment strategies, including precision medicine, are warranted.
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MESH Headings
- Adult
- Humans
- Leukemia-Lymphoma, Adult T-Cell/diagnosis
- Leukemia-Lymphoma, Adult T-Cell/etiology
- Leukemia-Lymphoma, Adult T-Cell/therapy
- Leukemia, Lymphocytic, Chronic, B-Cell/diagnosis
- Leukemia, Lymphocytic, Chronic, B-Cell/etiology
- Leukemia, Lymphocytic, Chronic, B-Cell/therapy
- Prognosis
- Antineoplastic Agents
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Affiliation(s)
- Akihiro Ohmoto
- Department of Medical Oncology, Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo 1358550, Japan; Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Shigeo Fuji
- Department of Hematology, Osaka International Cancer Institute, Osaka, 5418567, Japan.
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8
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Kleinstern G, Slager SL. The inherited genetic contribution and polygenic risk score for risk of CLL and MBL: a narrative review. Leuk Lymphoma 2023; 64:788-798. [PMID: 36576061 PMCID: PMC10121840 DOI: 10.1080/10428194.2022.2157215] [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: 11/04/2022] [Revised: 12/04/2022] [Accepted: 12/06/2022] [Indexed: 12/29/2022]
Abstract
Chronic lymphocytic leukemia (CLL) is a neoplasm of B-cells in the blood and monoclonal B-cell lymphocytosis (MBL) is a precursor state to CLL. This narrative review provides an overview of the genetic studies that identified 43 common variants associated with risk of CLL among individuals of European ancestry. Emerging studies found that ∼50% of these variants are associated with MBL risk. Moreover, the polygenic risk score (PRS) calculated from these CLL variants has been shown to be a robust predictor for both CLL and MBL risk among European ancestry individuals but a weak predictor among African ancestry individuals. By summarizing these genetic studies, we conclude that additional studies are needed in other race/ethnic populations to identify race-specific susceptibility variants, that functional studies are needed to validate the biological mechanisms of the variants, and that the clinical utility of the PRS is limited until preventive strategies for CLL are developed.
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Affiliation(s)
- Geffen Kleinstern
- School of Public Health, University of Haifa, Haifa, Israel
- Division of Computational Biology, Mayo Clinic, Rochester, MN, USA
| | - Susan L Slager
- Division of Computational Biology, Mayo Clinic, Rochester, MN, USA
- Division of Hematology, Mayo Clinic, Rochester, MN, USA
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9
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Li T, Zhang Y. Rare Case of Concomitant Polycythemia Vera and Chronic Lymphocytic Leukemia in a Young Male Patient. Turk J Haematol 2023; 40:77-79. [PMID: 36849726 PMCID: PMC9979730 DOI: 10.4274/tjh.galenos.2023.2022.0384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023] Open
Affiliation(s)
- Ting Li
- Beijing Lu Daopei Hospital, Department of Laboratory Medicine, Beijing, China
| | - Yun Zhang
- The District People's Hospital of Zhangqiu, Department of Clinical Laboratory, Shandong Province, China
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10
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Slager SL, Parikh SA, Achenbach SJ, Norman AD, Rabe KG, Boddicker NJ, Olson JE, Kleinstern G, Lesnick CE, Call TG, Cerhan JR, Vachon CM, Kay NE, Braggio E, Hanson CA, Shanafelt TD. Progression and survival of MBL: a screening study of 10 139 individuals. Blood 2022; 140:1702-1709. [PMID: 35969843 PMCID: PMC9837414 DOI: 10.1182/blood.2022016279] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 07/23/2022] [Indexed: 01/21/2023] Open
Abstract
Monoclonal B-cell lymphocytosis (MBL) is a common hematological premalignant condition that is understudied in screening cohorts. MBL can be classified into low-count (LC) and high-count (HC) types based on the size of the B-cell clone. Using the Mayo Clinic Biobank, we screened for MBL and evaluated its association with future hematologic malignancy and overall survival (OS). We had a two-stage study design including discovery and validation cohorts. We screened for MBL using an eight-color flow-cytometry assay. Medical records were abstracted for hematological cancers and death. We used Cox regression to evaluate associations and estimate hazard ratios and 95% confidence intervals (CIs), adjusting for age and sex. We identified 1712 (17%) individuals with MBL (95% LC-MBL), and the median follow-up time for OS was 34.4 months with 621 individuals who died. We did not observe an association with OS among individuals with LC-MBL (P = .78) but did among HC-MBL (hazard ratio, 1.8; 95% CI, 1.1-3.1; P = .03). Among the discovery cohort with a median of 10.0 years follow-up, 31 individuals developed hematological cancers with two-thirds being lymphoid malignancies. MBL was associated with 3.6-fold risk of hematological cancer compared to controls (95% CI, 1.7-7.7; P < .001) and 7.7-fold increased risk for lymphoid malignancies (95% CI:3.1-19.2; P < .001). LC-MBL was associated with 4.3-fold risk of lymphoid malignancies (95% CI, 1.4-12.7; P = .009); HC-MBL had a 74-fold increased risk (95% CI, 22-246; P < .001). In this large screening cohort, we observed similar survival among individuals with and without LC-MBL, yet individuals with LC-MBL have a fourfold increased risk of lymphoid malignancies. Accumulating evidence indicates that there are clinical consequences to LC-MBL, a condition that affects 8 to 10 million adults in the United States.
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Affiliation(s)
- Susan L. Slager
- Division of Hematology, Mayo Clinic, Rochester, MN
- Division of Computational Biology, Mayo Clinic, Rochester, MN
| | | | - Sara J. Achenbach
- Division of Clinical Trials and Biostatistics, Mayo Clinic, Rochester, MN
| | | | - Kari G. Rabe
- Division of Clinical Trials and Biostatistics, Mayo Clinic, Rochester, MN
| | | | | | - Geffen Kleinstern
- Division of Computational Biology, Mayo Clinic, Rochester, MN
- School of Public Health, University of Haifa, Haifa, Israel
| | | | | | | | | | - Neil E. Kay
- Division of Hematology, Mayo Clinic, Rochester, MN
| | - Esteban Braggio
- Department of Hematology and Oncology, Mayo Clinic, Phoenix, AZ
| | - Curtis A. Hanson
- Division of Hematopathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Tait D. Shanafelt
- Division of Hematology, Department of Medicine, Stanford University, Stanford, CA
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11
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Gao Q, Roshal M. Minimal/Measurable Disease Analysis in Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma by Flow Cytometry. Curr Protoc 2022; 2:e503. [PMID: 35980134 PMCID: PMC9946177 DOI: 10.1002/cpz1.503] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
CLL/SLL is the most common leukemia in the western world. The disease is indolent; however, most patients require treatment at some point of the disease course. Outside of allogeneic transplants, the treatment is rarely curative but often controls CLL/SLL manifestations for many years. Several lines of therapy may be used sequentially to prolong clinical remission. Because of the prolonged disease course, CLL/SLL monitoring represents a sizable portion of the workload in a typical flow cytometry laboratory involved in the diagnosis and monitoring of hematopoietic neoplasms. Minimal/measurable disease monitoring of CLL/SLL has emerged as a key component in treatment monitoring and sequencing. In the face of effective therapies, clinical laboratories are tasked with monitoring ever smaller proportions of MRD with high precision and accuracy. With the recent addition of surface antigen-targeting biologics such as antibodies and CAR-T cells, the task has become more complex due to the unavailability of commonly analyzed antigens for flow cytometric analysis. This article details a flow cytometric test developed at Memorial Sloan Kettering Cancer Center that has proven to consistently achieve high sensitivity (<0.01% of nucleated cells) in the bone marrow and peripheral blood, even when CD19 is lost or unavailable for analysis. Moreover, the test helps distinguish between CLL and other CD5-positive B cell neoplasms. The Basic Protocol provides a detailed operational procedure for processing, staining, and cytometric acquisition of samples. The Support Protocol provides typical steps and caveats for MRD data analysis in CLL/SLL and in distinguishing CLL/SLL from other B cell neoplasms and normal CD5-positive B cells. © 2022 Wiley Periodicals LLC. Basic Protocol: Processing, staining, and cytometric analysis of bone marrow or peripheral blood cells for MRD analysis of CLL/SLL Support Protocol: Analysis and interpretation of CLL MRD assay.
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Affiliation(s)
| | - Mikhail Roshal
- Correspondence to Mikhail Roshal, , 1275 York Avenue, New York, NY, 10065
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12
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Monoclonal B-cell Lymphocytosis in the Bone Marrow: Revisiting the Criteria for Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma. Hum Pathol 2022; 125:108-116. [DOI: 10.1016/j.humpath.2022.04.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 04/19/2022] [Indexed: 11/22/2022]
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13
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Muchtar E, Koehler AB, Johnson MJ, Rabe KG, Ding W, Call TG, Leis JF, Kenderian SS, Hayman SR, Wang Y, Hampel PJ, Holets MA, Darby HC, Slager SL, Kay NE, Miao C, Canniff J, Whitaker JA, Levin MJ, Scott Schmid D, Kennedy RB, Weinberg A, Parikh SA. Humoral and cellular immune responses to recombinant herpes zoster vaccine in patients with chronic lymphocytic leukemia and monoclonal B cell lymphocytosis. Am J Hematol 2022; 97:90-98. [PMID: 34699616 PMCID: PMC9199015 DOI: 10.1002/ajh.26388] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/09/2021] [Accepted: 10/14/2021] [Indexed: 01/03/2023]
Abstract
Monoclonal B-cell lymphocytosis (MBL) and chronic lymphocytic leukemia (CLL) are clonal B-cell disorders associated with an increased risk of infections and impaired vaccination responses. We investigated the immunogenicity of recombinant zoster vaccine (RZV) in these patients. Individuals with MBL/untreated CLL and Bruton tyrosine kinase inhibitor (BTKi)-treated CLL patients were given two doses of RZV separated by 2 months. Responses assessed at 3 and 12 months from the first dose of RZV by an anti-glycoprotein E ELISA antibody assay and by dual-color Interferon-γ and Interleukin-2FLUOROSPOT assays were compared to historic controls matched by age and sex. About 62 patients (37 MBL/untreated CLL and 25 BTKi-treated CLL) were enrolled with a median age of 68 years at vaccination. An antibody response at 3 months was seen in 45% of participants, which was significantly lower compared to historic controls (63%, p = .03). The antibody response did not significantly differ between MBL/untreated CLL and BTKi-treated CLL (51% vs. 36%, respectively, p = .23). The CD4+ T-cell response to vaccination was significantly lower in study participants compared to controls (54% vs. 96%, p < .001), mainly due to lower responses among BTKi-treated patients compared to untreated MBL/CLL (32% vs. 73%, p = .008). Overall, only 29% of participants achieved combined antibody and cellular responses to RZV. Among participants with response assessment at 12 months (n = 47), 24% had antibody titers below the response threshold. Hypogammaglobulinemia and BTKi therapy were associated with reduced T-cell responses in a univariate analysis. Strategies to improve vaccine response to RZV among MBL/CLL patients are needed.
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Affiliation(s)
- Eli Muchtar
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Amber B. Koehler
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Michael J. Johnson
- Department of Pediatrics (Infectious Diseases), University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Kari G. Rabe
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN
| | - Wei Ding
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Timothy G. Call
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Jose F. Leis
- Division of Hematology and Oncology, Mayo Clinic, Phoenix, AZ
| | - Saad S. Kenderian
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Suzanne R. Hayman
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Yucai Wang
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Paul J. Hampel
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Matthew A. Holets
- Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN
| | - Heather C. Darby
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Susan L. Slager
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN,Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN
| | - Neil E. Kay
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Congrong Miao
- National VZV Laboratory, Centers for Disease Control and Prevention, Atlanta, GA
| | - Jennifer Canniff
- Department of Pediatrics (Infectious Diseases), University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Jennifer A Whitaker
- Division of Infectious Diseases, Department of Medicine, Baylor College of Medicine, Houston, TX
| | - Myron J. Levin
- Departments of Pediatrics (Infectious Diseases) and Medicine (Infectious Diseases), University of Colorado Anschutz Medical Campus, Aurora, CO
| | - D. Scott Schmid
- National VZV Laboratory, Centers for Disease Control and Prevention, Atlanta, GA
| | - Richard B. Kennedy
- Vaccine Research Group, Division of General Internal Medicine, Mayo Clinic, Rochester, MN
| | - Adriana Weinberg
- Department of Pediatrics (Infectious Diseases), Medicine (Infectious Diseases), and Pathology University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Sameer A. Parikh
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
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14
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Wang W, Li Y, Ali H, Zhao L, Mei D, Hu W, Jiang B. Aberrant expression of CD54 detected by flow cytometry is a characteristic of B-lymphoma cells in bone marrow specimens. BMC Cancer 2021; 21:1315. [PMID: 34879826 PMCID: PMC8653582 DOI: 10.1186/s12885-021-09061-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 11/29/2021] [Indexed: 11/24/2022] Open
Abstract
Background Flow cytometry (FC) is a popular method to detect bone marrow (BM) involvement in patients with B-cell non-Hodgkin lymphoma (B-NHL). The majority of screen panels of FC still rely on finding monoclonal B-cells, e.g., B-cells with immunoglobin (Ig) light-chain restriction, which has many limitations. Therefore, exploring new markers is warranted. Methods A total of 52 cases of B-NHL with BM involvement were collected. The median age was 60 years. Out of these 52 cases, 34 were male, and 18 were female. A 10-color FC panel was used to detect the expression of CD54 on lymphoma cells. The expression of CD54 was calculated as the mean fluorescence index ratio (MFIR) and was described as the mean ± standard error of the mean (SEM). Results Up to 18/52 (34.62%) of BM specimens abnormally expressed an increased level of CD54, including 1/10 cases of chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL), 9/13 cases of mantle cell lymphoma (MCL), 2/14 cases of follicular lymphoma (FL), 5/9 cases of marginal zone lymphoma (MZL), and 1/3 cases of high-grade B-NHL (HG B-NHL). The expression level of CD54 was significantly increased in MCL cases (53.41 ± 11.04) compared with CLL/SLL cases (11.66 ± 2.79) and FL cases (13.49 ± 2.81). The lowest percentage of CD54-positive B-cells attained 0.13%. In 5/9 cases of MZL and 1/3 cases of HG B-NHL, increased expression of CD54 was the only abnormal immunophenotype detected besides Ig light-chain restriction. No aberrant CD54 expression was identified by FC in lymphoplasmacytic lymphoma (LPL) (0/2) and Burkitt lymphoma (BL) (0/1) cases. Aberrant expression of CD54 was not related to plasma cell differentiation. Conclusion Lymphoma cells, especially in MCL and MZL cases, frequently show increased expression of CD54. Such aberrant expression is not related to plasma cell differentiation. We highly recommend adding CD54 to the FC screening panel to detect BM involvement in patients with B-NHL.
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Affiliation(s)
- Wei Wang
- Department of Pathology and Laboratory Medicine, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX, USA
| | - Yan Li
- Department of Hematology, Peking University International Hospital, Zhong-Guan-Cun Life Science Park Road, Beijing, China
| | - Haval Ali
- Department of Pathology and Laboratory Medicine, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, TX, USA
| | - Linjun Zhao
- Department of Lymphoma, Peking University International Hospital, Zhong-Guan-Cun Life Science Park Road, Beijing, China
| | - Di Mei
- Department of Lymphoma, Peking University International Hospital, Zhong-Guan-Cun Life Science Park Road, Beijing, China
| | - Wenqing Hu
- Department of Hematology, Peking University International Hospital, Zhong-Guan-Cun Life Science Park Road, Beijing, China
| | - Bin Jiang
- Department of Hematology, Peking University International Hospital, Zhong-Guan-Cun Life Science Park Road, Beijing, China.
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15
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Galigalidou C, Zaragoza-Infante L, Iatrou A, Chatzidimitriou A, Stamatopoulos K, Agathangelidis A. Understanding Monoclonal B Cell Lymphocytosis: An Interplay of Genetic and Microenvironmental Factors. Front Oncol 2021; 11:769612. [PMID: 34858849 PMCID: PMC8631769 DOI: 10.3389/fonc.2021.769612] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 10/26/2021] [Indexed: 11/13/2022] Open
Abstract
The term monoclonal B-cell lymphocytosis (MBL) describes the presence of a clonal B cell population with a count of less than 5 × 109/L and no symptoms or signs of disease. Based on the B cell count, MBL is further classified into 2 distinct subtypes: 'low-count' and 'high-count' MBL. High-count MBL shares a series of biological and clinical features with chronic lymphocytic leukemia (CLL), at least of the indolent type, and evolves to CLL requiring treatment at a rate of 1-2% per year, whereas 'low-count' MBL seems to be distinct, likely representing an immunological rather than a pre-malignant condition. That notwithstanding, both subtypes of MBL can carry 'CLL-specific' genomic aberrations such as cytogenetic abnormalities and gene mutations, yet to a much lesser extent compared to CLL. These findings suggest that such aberrations are mostly relevant for disease progression rather than disease onset, indirectly pointing to microenvironmental drive as a key contributor to the emergence of MBL. Understanding microenvironmental interactions is therefore anticipated to elucidate MBL ontogeny and, most importantly, the relationship between MBL and CLL.
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Affiliation(s)
- Chrysi Galigalidou
- Institute of Applied Biosciences (INAB), Centre for Research and Technology Hellas (CERTH), Thessaloniki, Greece.,Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | - Laura Zaragoza-Infante
- Institute of Applied Biosciences (INAB), Centre for Research and Technology Hellas (CERTH), Thessaloniki, Greece.,Hematology Department, University General Hospital of Thessaloniki AHEPA, Thessaloniki, Greece
| | - Anastasia Iatrou
- Institute of Applied Biosciences (INAB), Centre for Research and Technology Hellas (CERTH), Thessaloniki, Greece
| | - Anastasia Chatzidimitriou
- Institute of Applied Biosciences (INAB), Centre for Research and Technology Hellas (CERTH), Thessaloniki, Greece.,Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Kostas Stamatopoulos
- Institute of Applied Biosciences (INAB), Centre for Research and Technology Hellas (CERTH), Thessaloniki, Greece.,Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Andreas Agathangelidis
- Institute of Applied Biosciences (INAB), Centre for Research and Technology Hellas (CERTH), Thessaloniki, Greece.,Department of Biology, School of Science, National and Kapodistrian University of Athens, Athens, Greece
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16
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Wang W, Li Y, Rivera Rivera X, Zhao L, Mei D, Hu W, Jiang B. Application of CD54 in diagnosing bone marrow involvement by using flow cytometry in patients with diffuse large B-cell lymphoma. BMC Cancer 2021; 21:1011. [PMID: 34503477 PMCID: PMC8431857 DOI: 10.1186/s12885-021-08753-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 09/01/2021] [Indexed: 11/14/2022] Open
Abstract
Background Flow cytometry plays a key role in detecting bone marrow (BM) involvement in patients with diffuse large B-cell lymphoma (DLBCL). To improve its detection sensitivity, we need to explore novel markers. In this study, we detected the expression CD54 on lymphoma cells in BM specimens from DLBCL patients and clarified its diagnostic significance in BM involvement by DLBCL. Methods We collected BM specimens from 76 patients with DLBCL (germinal center B-cell (GCB) = 25, non-GCB = 51) and 10 control patients without lymphoma. We detected and compared the expression of CD54 on lymphoma cells and normal mature B cells by using 10-color panels. Results Normal plasma cells expressed a higher level of CD54 as compared with hematogones (p < 0.05) and normal mature B cells (p < 0.05). Among 76 patients, 23 of them (GCB = 12, non-GCB = 11) had BM involvement. Lymphoma B cells from 12 cases (GBC = 4, non-GCB = 8) expressed a higher level of CD54 compared to normal mature B cells (p < 0.05). Additionally, lymphoma cells of the non-GCB subtype frequently expressed a higher level of CD54 in comparison to the GCB subtype (p < 0.05). And the high expression of CD54 was not related to plasmacytoid differentiation. Conclusion Aberrant expression of CD54 on lymphoma cells is frequently seen in patients’ BM specimens involved by DLBCL, especially in the non-GCB subtype. CD54 could be used as a new marker to gate on lymphoma cells and improve the detection sensitivity of BM involvement in patients with DLBCL. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08753-0.
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Affiliation(s)
- Wei Wang
- Department of Pathology and Laboratory Medicine, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, Texas, USA
| | - Yan Li
- Department of Hematology, Peking University International Hospital, Zhong-Guan-Cun Life Science Park Road, Beijing, China
| | - Xavier Rivera Rivera
- Department of Pathology and Laboratory Medicine, The University of Texas Health Science Center at Houston, 6431 Fannin Street, Houston, Texas, USA
| | - Linjun Zhao
- Department of Lymphoma, Peking University International Hospital, Zhong-Guan-Cun Life Science Park Road, Beijing, China
| | - Di Mei
- Department of Lymphoma, Peking University International Hospital, Zhong-Guan-Cun Life Science Park Road, Beijing, China
| | - Wenqing Hu
- Department of Hematology, Peking University International Hospital, Zhong-Guan-Cun Life Science Park Road, Beijing, China
| | - Bin Jiang
- Department of Hematology, Peking University International Hospital, Zhong-Guan-Cun Life Science Park Road, Beijing, China.
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17
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Gragnani L, Lorini S, Marri S, Basile U, Santarlasci V, Monti M, Madia F, Petraccia L, Stasi C, Marello N, Napodano C, Annunziato F, Zignego AL. Hematological and Genetic Markers in the Rational Approach to Patients With HCV Sustained Virological Response With or Without Persisting Cryoglobulinemic Vasculitis. Hepatology 2021; 74:1164-1173. [PMID: 33721342 PMCID: PMC8519006 DOI: 10.1002/hep.31804] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 02/02/2021] [Accepted: 02/28/2021] [Indexed: 12/21/2022]
Abstract
BACKGROUND AND AIMS Direct-acting antivirals (DAAs) usually lead to improvement/remission of cryoglobulinemic vasculitis (CV), although symptoms may persist/recur after a sustained virological response (SVR). We evaluated hematological and genetic markers in patients with HCV-SVR vasculitis with and without persisting/recurring symptoms to early predict the CV outcome. APPROACH AND RESULTS Ninety-eight patients with HCV-CV were prospectively enrolled after a DAA-induced SVR: Group A: 52 with complete clinical response; Group B: 46 with symptom maintenance/recurrence. Monoclonal B-cell lymphocytosis, t(14;18) translocation, and abnormal free light chains κ/λ ratios were detected by flow cytometry or nested-PCR or nephelometry in 4% Group A versus 17% Group B (P = 0.04) patients, 17% Group A versus 40% Group B patients (P = 0.02), and 17% Group A versus 47% Group B (P = 0.003) patients, respectively. At least 1 out of 3 clonality markers was altered/positive in 29% of Group A versus 70% of Group B patients (P < 0.0001). When available, pretherapy samples were also tested for t(14;18) translocation (detected in 12/37 [32%] Group A and 21/38 [55%] Group B) and κ/λ ratios (abnormal in 5/35 [14%] Group A and 20/38 [53%] Group B) (P = 0.0006), whereas at least one clonality marker was detected/altered in 16/37 (43%) Group A and 30/38 (79%) Group B (P = 0.002). CV-associated single-nucleotide polymorphisms were tested by real-time PCR. Among them, notch4 rs2071286 T minor allele and TT genotype showed a higher frequency in Group B versus Group A (46% vs. 29%, P = 0.01, and 17% vs. 2%, P = 0.006, respectively). CONCLUSIONS Hematological or genetic analyses could be used to foresee the CV clinical response after DAA therapy and could be valuable to assess a rational flowchart to manage CV during follow-up.
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Affiliation(s)
- Laura Gragnani
- MaSVE Interdepartmental Hepatology CenterDepartment of Experimental and clinical MedicineUniversity of FlorenceCenter for Research and Innovation CRIA‐MaSVEAOU CareggiFlorenceItaly
| | - Serena Lorini
- MaSVE Interdepartmental Hepatology CenterDepartment of Experimental and clinical MedicineUniversity of FlorenceCenter for Research and Innovation CRIA‐MaSVEAOU CareggiFlorenceItaly
| | - Silvia Marri
- MaSVE Interdepartmental Hepatology CenterDepartment of Experimental and clinical MedicineUniversity of FlorenceCenter for Research and Innovation CRIA‐MaSVEAOU CareggiFlorenceItaly
| | - Umberto Basile
- Area Diagnostica di LaboratorioFondazione Policlinico Universitario “A. Gemelli”, I.R.C.C.S. RomeRomeItaly
| | - Veronica Santarlasci
- MaSVE Interdepartmental Hepatology CenterDepartment of Experimental and clinical MedicineUniversity of FlorenceCenter for Research and Innovation CRIA‐MaSVEAOU CareggiFlorenceItaly,Flow Cytometry Diagnostic Center and Immunotherapy (CDCI)Department of Experimental and Clinical MedicineUniversity of FlorenceFlorenceItaly
| | - Monica Monti
- MaSVE Interdepartmental Hepatology CenterDepartment of Experimental and clinical MedicineUniversity of FlorenceCenter for Research and Innovation CRIA‐MaSVEAOU CareggiFlorenceItaly
| | - Francesco Madia
- MaSVE Interdepartmental Hepatology CenterDepartment of Experimental and clinical MedicineUniversity of FlorenceCenter for Research and Innovation CRIA‐MaSVEAOU CareggiFlorenceItaly
| | - Luisa Petraccia
- MaSVE Interdepartmental Hepatology CenterDepartment of Experimental and clinical MedicineUniversity of FlorenceCenter for Research and Innovation CRIA‐MaSVEAOU CareggiFlorenceItaly
| | - Cristina Stasi
- MaSVE Interdepartmental Hepatology CenterDepartment of Experimental and clinical MedicineUniversity of FlorenceCenter for Research and Innovation CRIA‐MaSVEAOU CareggiFlorenceItaly
| | - Niccolò Marello
- MaSVE Interdepartmental Hepatology CenterDepartment of Experimental and clinical MedicineUniversity of FlorenceCenter for Research and Innovation CRIA‐MaSVEAOU CareggiFlorenceItaly
| | - Cecilia Napodano
- Dipartimento di scienze Mediche e ChirurgicheUOC Gastroenterologia Fondazione Policlinico Universitario “A. Gemelli” I.R.C.C.S.RomeItaly
| | - Francesco Annunziato
- Flow Cytometry Diagnostic Center and Immunotherapy (CDCI)Department of Experimental and Clinical MedicineUniversity of FlorenceFlorenceItaly
| | - Anna Linda Zignego
- MaSVE Interdepartmental Hepatology CenterDepartment of Experimental and clinical MedicineUniversity of FlorenceCenter for Research and Innovation CRIA‐MaSVEAOU CareggiFlorenceItaly
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Kume A, Kashiwakuma D, Kubodera A, Hayashi K, Shimizu R, Suzuki Y, Tanaka H. Monoclonal B-cell Lymphocytosis Exacerbated by Prednisolone Therapy for Dermatomyositis. Intern Med 2021; 60:2853-2858. [PMID: 33746170 PMCID: PMC8479216 DOI: 10.2169/internalmedicine.6956-20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Lymphoproliferative diseases have been associated with various autoimmune diseases. We experienced a case of non-chronic lymphocytic leukemia type monoclonal B-cell lymphocytosis (MBL) that was exacerbated by increasing prednisolone for dermatomyositis and then improved by decreasing the dosage. Because MBL is difficult to diagnose, cases like ours may not be rare. These findings will facilitate our understanding of the mechanism underlying lymphoproliferative diseases and autoimmune diseases.
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Affiliation(s)
- Ayaka Kume
- Department of Hematology, Asahi General Hospital, Japan
| | - Daisuke Kashiwakuma
- Research Center for Allergy and Clinical Immunology, Asahi General Hospital, Japan
| | - Ai Kubodera
- Department of Hematology, Asahi General Hospital, Japan
| | | | - Ryo Shimizu
- Department of Hematology, Asahi General Hospital, Japan
| | - Yoshio Suzuki
- Department of Clinical Pathology, Asahi General Hospital, Japan
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19
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Genetics of Chronic Lymphocytic Leukemia. ACTA ACUST UNITED AC 2021; 27:259-265. [PMID: 34398552 DOI: 10.1097/ppo.0000000000000538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
ABSTRACT During the past 10 years, relevant advances have been made in the understanding of the pathogenesis of chronic lymphocytic leukemia via the integrated analysis of its genome and related epigenome, and transcriptome. These analyses also had an impact on our understanding of the initiation, as well as of the evolution of chronic lymphocytic leukemia, including resistance to chemotherapy and sensitivity and resistance to novel targeted therapies. This chapter will review the current state of the art in this field, with emphasis on the genetic heterogeneity of the disease and the biological pathways that are altered by the genetic lesions.
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Parikh SA, Rabe KG, Kay NE, Call TG, Ding W, Leis JF, Kenderian SS, Muchtar E, Wang Y, Koehler AB, Schwager SM, Lesnick CE, Kleinstern G, Van Dyke D, Hanson CA, Braggio E, Slager SL, Shanafelt TD. The CLL International Prognostic Index predicts outcomes in monoclonal B-cell lymphocytosis and Rai 0 CLL. Blood 2021; 138:149-159. [PMID: 33876228 PMCID: PMC8288657 DOI: 10.1182/blood.2020009813] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 03/25/2021] [Indexed: 01/15/2023] Open
Abstract
The utility of the chronic lymphocytic leukemia-international prognostic index (CLL-IPI) in predicting outcomes of individuals with Rai 0 stage CLL and monoclonal B-cell lymphocytosis (MBL) is unclear. We identified 969 individuals (415 MBL and 554 Rai 0 CLL; median age, 64 years; 65% men) seen at Mayo Clinic between 1 January 2001 and 1 October 2018, and ascertained time to first therapy (TTFT) and overall survival (OS). After a median follow up of 7 years, the risk of disease progression needing therapy was 2.9%/y for MBL (median, not reached) and 5%/y for Rai 0 CLL (median, 10.4 years). Among patients with low, intermediate, and high/very high-risk CLL-IPI risk groups, the estimated 5-year risk of TTFT was 13.5%, 30%, and 58%, respectively, P< .0001 (c-statistic = 0.69); and the estimated 5-year OS was 96.3%, 91.5%, and 76%, respectively, P< .0001 (c-statistic = 0.65). In a multivariable analysis of absolute B-cell count with individual factors of the CLL-IPI, the absolute B-cell count was associated with shorter TTFT (hazard ratio [HR] for each 10 × 109/L increase: 1.31; P< .0001) and shorter OS (HR: 1.1; P = .02). The OS of the entire cohort was similar to that of the age- and sex-matched general population of Minnesota (P = .17), although Rai 0 CLL patients with high and very high-risk CLL-IPI score had significantly shorter OS (P= .01 and P= .0001, respectively). The results of this study demonstrate the ability of CLL-IPI to predict time from diagnosis to first treatment (an end point not affected by therapy) in a large cohort of patients whose only manifestation of disease is a circulating clonal lymphocyte population.
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Affiliation(s)
| | - Kari G Rabe
- Division of Biomedical Statistics & Informatics, Mayo Clinic, Rochester, MN
| | - Neil E Kay
- Division of Hematology, Department of Medicine and
| | | | - Wei Ding
- Division of Hematology, Department of Medicine and
| | - Jose F Leis
- Department of Hematology and Oncology, Mayo Clinic, Phoenix, AZ
| | | | - Eli Muchtar
- Division of Hematology, Department of Medicine and
| | - Yucai Wang
- Division of Hematology, Department of Medicine and
| | | | | | | | - Geffen Kleinstern
- Division of Hematology, Department of Medicine and
- School of Public Health, University of Haifa, Haifa, Israel
| | - Daniel Van Dyke
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN; and
| | - Curtis A Hanson
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN; and
| | - Esteban Braggio
- Department of Hematology and Oncology, Mayo Clinic, Phoenix, AZ
| | - Susan L Slager
- Division of Biomedical Statistics & Informatics, Mayo Clinic, Rochester, MN
| | - Tait D Shanafelt
- Division of Hematology, Stanford University School of Medicine, Palo Alto, CA
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21
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Plessi J, Mori G, Magistroni R, Cappelli G. Monoclonal B lymphocytosis in a kidney transplant recipient. BMJ Case Rep 2021; 14:14/6/e242889. [PMID: 34127504 DOI: 10.1136/bcr-2021-242889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Monoclonal B lymphocytosis (MBL) is a lymphoproliferative condition characterised by expansion of a B-cell clone in peripheral blood, with an often indolent clinical course. The presence of a B clonal population alone is several hundred times more common in the general population than chronic lymphocytic leukaemia and other non-Hodgkin's lymphoma subtypes, it usually does not represent a malignant condition and it requires follow-up only, without specific treatment. There are few studies describing MBL in solid organ transplant recipients, thus, the concern is raised when enrolling MBL affected subjects in waiting lists. We report the experience of a patient affected by MBL who underwent kidney transplantation, with particular attention to preoperative screening and immunosuppressants impact on post-transplant lymphoproliferative disease risk, to aid clinicians in the evaluation process of transplant candidates affected by similar conditions.
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Affiliation(s)
- Jessica Plessi
- Department of Surgical, Medical, Dental and Morphological Sciences, Università degli Studi di Modena e Reggio Emilia, Modena, Emilia-Romagna, Italy
| | - Giacomo Mori
- Struttura Complessa di Nefrologia Dialisi e Trapianto Renale, University Hospital Modena, Modena, Emilia-Romagna, Italy
| | - Riccardo Magistroni
- Department of Surgical, Medical, Dental and Morphological Sciences, Università degli Studi di Modena e Reggio Emilia, Modena, Emilia-Romagna, Italy.,Struttura Complessa di Nefrologia Dialisi e Trapianto Renale, University Hospital Modena, Modena, Emilia-Romagna, Italy
| | - Gianni Cappelli
- Department of Surgical, Medical, Dental and Morphological Sciences, Università degli Studi di Modena e Reggio Emilia, Modena, Emilia-Romagna, Italy.,Struttura Complessa di Nefrologia Dialisi e Trapianto Renale, University Hospital Modena, Modena, Emilia-Romagna, Italy
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22
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Slager SL, Lanasa MC, Marti GE, Achenbach SJ, Camp NJ, Abbasi F, Kay NE, Vachon CM, Cerhan JR, Johnston JB, Call TG, Rabe KG, Kleinstern G, Boddicker NJ, Norman AD, Parikh SA, Leis JF, Banerji V, Brander DM, Glenn M, Ferrajoli A, Curtin K, Braggio E, Shanafelt TD, McMaster ML, Weinberg JB, Hanson CA, Caporaso NE. Natural history of monoclonal B-cell lymphocytosis among relatives in CLL families. Blood 2021; 137:2046-2056. [PMID: 33512457 PMCID: PMC8057266 DOI: 10.1182/blood.2020006322] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 11/14/2020] [Indexed: 12/21/2022] Open
Abstract
Chronic lymphocytic lymphoma (CLL) has one of the highest familial risks among cancers. Monoclonal B-cell lymphocytosis (MBL), the precursor to CLL, has a higher prevalence (13%-18%) in families with 2 or more members with CLL compared with the general population (5%-12%). Although, the rate of progression to CLL for high-count MBLs (clonal B-cell count ≥500/µL) is ∼1% to 5%/y, no low-count MBLs have been reported to progress to date. We report the incidence and natural history of MBL in relatives from CLL families. In 310 CLL families, we screened 1045 relatives for MBL using highly sensitive flow cytometry and prospectively followed 449 of them. MBL incidence was directly age- and sex-adjusted to the 2010 US population. CLL cumulative incidence was estimated using Kaplan-Meier survival curves. At baseline, the prevalence of MBL was 22% (235/1045 relatives). After a median follow-up of 8.1 years among 449 relatives, 12 individuals progressed to CLL with a 5-year cumulative incidence of 1.8%. When considering just the 139 relatives with low-count MBL, the 5-year cumulative incidence increased to 5.7%. Finally, 264 had no MBL at baseline, of whom 60 individuals subsequently developed MBL (2 high-count and 58 low-count MBLs) with an age- and sex-adjusted incidence of 3.5% after a median of 6 years of follow-up. In a screening cohort of relatives from CLL families, we reported progression from normal-count to low-count MBL to high-count MBL to CLL, demonstrating that low-count MBL precedes progression to CLL. We estimated a 1.1% annual rate of progression from low-count MBL, which is in excess of that in the general population.
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Affiliation(s)
- Susan L Slager
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN
| | - Mark C Lanasa
- Department of Medicine, Duke University, Duke Cancer Institute, Durham, NC
| | - Gerald E Marti
- Lymphoid Malignancies Section, Hematology Branch, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD
| | - Sara J Achenbach
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN
| | - Nicola J Camp
- Department of Internal Medicine, Huntsman Cancer Institute, University of Utah School of Medicine, Salt Lake City, UT
| | - Fatima Abbasi
- Center for Biologics Research and Evaluation, Food and Drug Administration, Silver Springs, MD
| | - Neil E Kay
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Celine M Vachon
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN
| | - James R Cerhan
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN
| | - James B Johnston
- Department of Internal Medicine, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB, Canada
- Research Institute in Oncology and Hematology, CancerCare Manitoba, Winnipeg, MB, Canada
| | - Timothy G Call
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Kari G Rabe
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN
| | | | | | - Aaron D Norman
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN
| | - Sameer A Parikh
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN
| | - Jose F Leis
- Department of Hematology and Oncology, Mayo Clinic, Phoenix, AZ
| | - Versha Banerji
- Department of Internal Medicine, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB, Canada
- Research Institute in Oncology and Hematology, CancerCare Manitoba, Winnipeg, MB, Canada
- Department of Biochemistry and Medical Genetics, Max Rady College of Medicine, University of Manitoba, Winnipeg, MB, Canada
| | - Danielle M Brander
- Department of Medicine, Duke University, Duke Cancer Institute, Durham, NC
| | - Martha Glenn
- Department of Internal Medicine, Huntsman Cancer Institute, University of Utah School of Medicine, Salt Lake City, UT
| | - Alessandra Ferrajoli
- Department of Leukemia, University of Texas MD Anderson Cancer Center, Houston, TX
| | - Karen Curtin
- Department of Internal Medicine, Huntsman Cancer Institute, University of Utah School of Medicine, Salt Lake City, UT
| | - Esteban Braggio
- Department of Hematology and Oncology, Mayo Clinic, Phoenix, AZ
| | - Tait D Shanafelt
- Division of Hematology, Department of Medicine, Stanford University School of Medicine, Palo Alto, CA
| | - Mary L McMaster
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - J Brice Weinberg
- Department of Medicine, Duke University, Duke Cancer Institute, Durham, NC
- Department of Immunology, Duke University Medical Center, Durham, NC
- Durham Veterans Affairs Medical Center, Durham, NC; and
| | - Curtis A Hanson
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Neil E Caporaso
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD
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23
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Lamb MJ, Smith A, Painter D, Kane E, Bagguley T, Newton R, Howell D, Cook G, de Tute R, Rawstron A, Patmore R, Roman E. Health impact of monoclonal gammopathy of undetermined significance (MGUS) and monoclonal B-cell lymphocytosis (MBL): findings from a UK population-based cohort. BMJ Open 2021; 11:e041296. [PMID: 33619185 PMCID: PMC7903106 DOI: 10.1136/bmjopen-2020-041296] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 01/20/2021] [Accepted: 01/22/2021] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE To examine mortality and morbidity patterns before and after premalignancy diagnosis in individuals with monoclonal gammopathy of undetermined significance (MGUS) and monoclonal B-cell lymphocytosis (MBL) and compare their secondary healthcare activity to that of the general population. DESIGN Population-based patient cohort, within which each patient is matched at diagnosis to 10 age-matched and sex-matched individuals from the general population. Both cohorts are linked to nationwide information on deaths, cancer registrations and Hospital Episode Statistics. SETTING The UK's Haematological Malignancy Research Network, which has a catchment population of around 4 million served by 14 hospitals and a central diagnostic laboratory. PARTICIPANTS All patients newly diagnosed during 2009-2015 with MGUS (n=2193) or MBL (n=561) and their age and sex-matched comparators (n=27 538). MAIN OUTCOME MEASURES Mortality and hospital inpatient and outpatient activity in the 5 years before and 3 years after diagnosis. RESULTS Individuals with MGUS experienced excess morbidity in the 5 years before diagnosis and excess mortality and morbidity in the 3 years after diagnosis. Increased rate ratios (RRs) were evident for nearly all clinical specialties, the largest, both before and after diagnosis, being for nephrology (before RR=4.29, 95% CI 3.90 to 4.71; after RR=13.8, 95% CI 12.8 to 15.0) and rheumatology (before RR=3.40, 95% CI 3.18 to 3.63; after RR=5.44, 95% CI 5.08 to 5.83). Strong effects were also evident for endocrinology, neurology, dermatology and respiratory medicine. Conversely, only marginal increases in mortality and morbidity were evident for MBL. CONCLUSIONS MGUS and MBL are generally considered to be relatively benign, since most individuals with monoclonal immunoglobulins never develop a B-cell malignancy or any other monoclonal protein-related organ/tissue-related disorder. Nonetheless, our findings offer strong support for the view that in some individuals, monoclonal gammopathy has the potential to cause systemic disease resulting in wide-ranging organ/tissue damage and excess mortality.
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Affiliation(s)
- Maxine Je Lamb
- Department of Health Sciences, University of York, York, UK
| | | | - Daniel Painter
- Department of Health Sciences, University of York, York, UK
| | - Eleanor Kane
- Department of Health Sciences, University of York, York, UK
| | | | - Robert Newton
- Department of Health Sciences, University of York, York, UK
- Epidemiology and Prevention Programme, Uganda Virus Research Institute, Entebbe, Uganda
| | - Debra Howell
- Department of Health Sciences, University of York, York, UK
| | - Gordon Cook
- Haematology, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Ruth de Tute
- Haematological Malignancy Diagnostic Service (HMDS), Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Andrew Rawstron
- Haematological Malignancy Diagnostic Service (HMDS), Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Russell Patmore
- Haematology, Hull University Teaching Hospitals NHS Trust, Hull, UK
| | - Eve Roman
- Department of Health Sciences, University of York, York, UK
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24
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Abstract
Patients with chronic lymphocytic leukemia can be divided into three categories: those who are minimally affected by the problem, often never requiring therapy; those that initially follow an indolent course but subsequently progress and require therapy; and those that from the point of diagnosis exhibit an aggressive disease necessitating treatment. Likewise, such patients pass through three phases: development of the disease, diagnosis, and need for therapy. Finally, the leukemic clones of all patients appear to require continuous input from the exterior, most often through membrane receptors, to allow them to survive and grow. This review is presented according to the temporal course that the disease follows, focusing on those external influences from the tissue microenvironment (TME) that support the time lines as well as those internal influences that are inherited or develop as genetic and epigenetic changes occurring over the time line. Regarding the former, special emphasis is placed on the input provided via the B-cell receptor for antigen and the C-X-C-motif chemokine receptor-4 and the therapeutic agents that block these inputs. Regarding the latter, prominence is laid upon inherited susceptibility genes and the genetic and epigenetic abnormalities that lead to the developmental and progression of the disease.
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MESH Headings
- Disease Progression
- Humans
- Immunotherapy
- Leukemia, Lymphocytic, Chronic, B-Cell/diagnosis
- Leukemia, Lymphocytic, Chronic, B-Cell/etiology
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Leukemia, Lymphocytic, Chronic, B-Cell/therapy
- Mutation
- PAX5 Transcription Factor/metabolism
- Receptors, Antigen, B-Cell
- Signal Transduction
- Tumor Microenvironment
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Affiliation(s)
- Nicholas Chiorazzi
- The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, New York 11030, USA
| | - Shih-Shih Chen
- The Feinstein Institutes for Medical Research, Northwell Health, Manhasset, New York 11030, USA
| | - Kanti R Rai
- The Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York 11549, USA
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25
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Whitaker JA, Parikh SA, Shanafelt TD, Kay NE, Kennedy RB, Grill DE, Goergen KM, Call TG, Kendarian SS, Ding W, Poland GA. The humoral immune response to high-dose influenza vaccine in persons with monoclonal B-cell lymphocytosis (MBL) and chronic lymphocytic leukemia (CLL). Vaccine 2021; 39:1122-1130. [PMID: 33461835 DOI: 10.1016/j.vaccine.2021.01.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 12/08/2020] [Accepted: 01/02/2021] [Indexed: 12/28/2022]
Abstract
BACKGROUND Limited data are available regarding the immunogenicity of high-dose influenza vaccine among persons with chronic lymphocytic leukemia (CLL) and monoclonal B cell lymphocytosis (MBL). METHODS A prospective pilot study of humoral immune responses to 2013-2014 and 2014-2015 high-dose trivalent influenza vaccine (HD IIV; Fluzone® High-Dose; Sanofi Pasteur) was conducted among individuals with MBL and previously untreated CLL. Serum hemagglutination inhibition (HAI) antibody titers were measured at baseline and Day 28 after vaccination; seroprotection and seroconversion rates were determined. Memory B cell responses were assessed by B-cell enzyme-linked immune absorbent spotassays. RESULTS Thirty subjects (17 CLL and 13 MBL) were included. Median age was 69.5 years. Day 28 seroprotection rates for the cohort were 19/30 (63.3%) for A/H1N1; 21/23 (91.3%) for A/H3N2; and 13/30 (43.3%) for influenza B. Those with MBL achieved higher day 28 HAI geometric mean titers (54.1 [4.9, 600.1] vs. 12.1 [1.3, 110.1]; p = 0.01) and higher Day 28 seroprotection rates (76.9% vs. 17.6%; p = 0.002) against the influenza B-vaccine strain virus than those with CLL. CONCLUSIONS Immunogenicity of the HD IIV3 in patients with CLL and MBL is lower than reported in healthy adults. Immunogenicity to influenza B was greater in those with MBL than CLL.
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Affiliation(s)
- Jennifer A Whitaker
- Molecular Virology and Microbiology and Medicine, Infectious Diseases, Baylor College of Medicine One Baylor Plaza, MS-280, Houston, TX 77030, USA; Division of Infectious Diseases, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA.
| | - Sameer A Parikh
- Division of Hematology, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Tait D Shanafelt
- Division of Hematology, Stanford University School of Medicine, 500 Pasteur Drive, Stanford, CA 94305, USA
| | - Neil E Kay
- Division of Hematology, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Richard B Kennedy
- Division of General Internal Medicine and Vaccine Research Group, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Diane E Grill
- Division of Biomedical Statistics and Informatics, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Krista M Goergen
- Division of Biomedical Statistics and Informatics, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Timothy G Call
- Division of Hematology, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Saad S Kendarian
- Division of Hematology, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Wei Ding
- Division of Hematology, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
| | - Gregory A Poland
- Division of General Internal Medicine and Vaccine Research Group, Mayo Clinic, 200 First St. SW, Rochester, MN 55905, USA
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26
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Xu J, Li J, Wei Z, Wang Y, Liu P. Screening for monoclonal B-lymphocyte expansion in a hospital-based Chinese population with lymphocytosis: an observational cohort study. BMJ Open 2020; 10:e036006. [PMID: 32933958 PMCID: PMC7493108 DOI: 10.1136/bmjopen-2019-036006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVES Screening of monoclonal B-cell lymphocytosis (MBL) has improved the early detection of B-cell lymphoproliferative disorders (B-LPDs). This study was designed to find the most cost-effective way to screen for asymptomatic B-LPD. DESIGN Observational study. SETTING A lymphocytosis screening project was conducted at a large-scale hospital among the Chinese population. PARTICIPANTS For 10 consecutive working days in 2018, 22 809 adult patients who received a complete blood count (CBC) were reviewed. These patients were selected from the outpatient, inpatient and health examination departments of a National Medical Centre in China. RESULTS A total of 254 patients (1.1%, 254/22 809) were found to have lymphocytosis (absolute lymphocyte count (ALC) >3.5×109/L). Among them, a population of circulating monoclonal B-lymphocytes were detected in 14 patients, with 4 having chronic lymphocytic leukaemia (CLL) and 10 having MBL, indicating an overall prevalence of 5.5% for B-LPD (3.9% for MBL). The prevalence of CLL among the elderly patients with lymphocytosis (≥60 years) was determined to be 4.3% (4/92). In the patients over 60 years of age, the prevalence of MBL was found to be 8.7%. CD5 (-) non-CLL-like MBL was observed to be the most common subtype (8, 80%), followed by CLL-like phenotype (1, 10.0%) and atypical CLL phenotype (1, 10.0%). The receiver operating characteristic curve analysis for the CBC results revealed that the ALC of 4.7×109/L may serve as the optimal and cost-effective cut-off for screening for early-stage asymptomatic B-LPD. CONCLUSION In Chinese patients with lymphocytosis, there was a relatively high proportion of patients with CLL among individuals over 60 years of age. MBL is an age-related disorder. Non-CLL-like MBL was the most common MBL subtype, almost all of whom displayed a pattern of 'marginal zone lymphoma (MZL)-like' MBL. Lymphocytosis screening among the elderly would be effective in the detection of B-LPD and MBL.
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Affiliation(s)
- Jiadai Xu
- Hematology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jing Li
- Hematology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zheng Wei
- Hematology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yue Wang
- Hematology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Peng Liu
- Hematology, Zhongshan Hospital, Fudan University, Shanghai, China
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27
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Goshaw JM, Gao Q, Wardrope J, Dogan A, Roshal M. 14-Color single tube for flow cytometric characterization of CD5+ B-LPDs and high sensitivity automated minimal residual disease quantitation of CLL/SLL. CYTOMETRY PART B-CLINICAL CYTOMETRY 2020; 100:509-518. [PMID: 32896973 DOI: 10.1002/cyto.b.21953] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 07/09/2020] [Accepted: 08/19/2020] [Indexed: 01/04/2023]
Abstract
INTRODUCTION The diagnosis of CLL/SLL relies on flow cytometric immunophenotyping. Increasing emphasis is being placed on precise detection of the minimal residual disease. Following antigen recommendations of ERIC and ESCCA's Harmonization Project, we validated a 14-color assay for the characterization CD5+ lymphoproliferative neoplasms and CLL MRD with a sensitivity of at least 10-4 . METHODS The assay was designed based on ERIC/ESCCA recommended antigens with the addition of CD40 for alternate gating when CD19 expression is reduced. Lower limit of quantitation/lower limit of detection, assay procedural precision, linearity, and limit of blank were established. Then, 52 CD5+ B-cell lymphoproliferative neoplasms (41 CLL/11 non-CLL) and 29 normal samples were used for parallel evaluation. Automated cluster identification and quantitation of CLL clones in MRD setting was performed using Barned-Hutt SNE. Separation analysis between CLL and non-CLL phenotypes was performed by PCA and bh-SNE. RESULTS Separation ratios for each antigen exceeded ERIC/ESCCA guidelines. Precision was <20% at LLOQ (0.01%). The limit of blank was <10/500,000 cells. Concordance between the 14-color and legacy assay (Deming regression y = 1.01x, r2 = .99) was seen. All 20 samples with MRD levels 0.5%-0.006% (median 0.04%) showed an abnormal cell cluster by bh-SNE, with concordant results between manual and automated quantitation (y = x, r2 = 1). CLL cases clustered together and away from mantle cell lymphoma by bh-SNE and PCA with outlier atypical phenotype CLL cases posing diagnostic challenges by both manual and automated analysis. CONCLUSION The 14-color CD5+ LPD assay provides a robust standardization platform for MRD and disease characterization using both manual and automated analysis.
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Affiliation(s)
- Jennifer M Goshaw
- Memorial Sloan Kettering Cancer Center, Department of Pathology, Hematopathology Service, New York, New York, USA
| | - Qi Gao
- Memorial Sloan Kettering Cancer Center, Department of Pathology, Hematopathology Service, New York, New York, USA
| | - Jessica Wardrope
- Memorial Sloan Kettering Cancer Center, Department of Pathology, Hematopathology Service, New York, New York, USA
| | - Ahmet Dogan
- Memorial Sloan Kettering Cancer Center, Department of Pathology, Hematopathology Service, New York, New York, USA
| | - Mikhail Roshal
- Memorial Sloan Kettering Cancer Center, Department of Pathology, Hematopathology Service, New York, New York, USA
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28
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LeBlanc RE, Carter JB, Kaur P, Lansigan F. Small lymphocytic lymphoma mimicking primary cutaneous marginal zone lymphoma with colonization of germinal center follicles. J Cutan Pathol 2020; 48:72-76. [PMID: 32506455 DOI: 10.1111/cup.13765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 05/26/2020] [Accepted: 05/28/2020] [Indexed: 01/02/2023]
Abstract
Chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) is primarily a disease of older adults and is occasionally an incidental finding on skin biopsies accompanying epithelial neoplasms and insect bite reactions. In rare instances, however, it produces leukemic infiltrates showing clinical and histopathologic overlap with primary cutaneous B-cell lymphomas including primary cutaneous marginal zone lymphoma (PCMZL). Even less frequently, such findings serve as the initial disease manifestation. We present an exceptional case of a 61-year-old man with no past medical history whose clinical and histopathologic findings raised consideration for PCMZL with abnormal B-cells colonizing germinal center follicles; however, faint CD5 and CD23 co-expression raised the differential diagnosis of CLL/SLL. In light of an ambiguous clinical presentation with widely distributed papules and plaques, peripheral blood flow cytometry was also performed, revealing high count of CLL-type monoclonal B lymphocytosis. Subsequent workup revealed bone marrow involvement and mesenteric lymphadenopathy, supporting the diagnosis of SLL. Follicular colonization by SLL has not been previously reported. Our case underscores the importance of subtle immunophenotypic clues and correlations with clinical and radiologic findings in the workup of B-cell lymphomas presenting in the skin.
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Affiliation(s)
- Robert E LeBlanc
- Department of Pathology and Laboratory Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA.,Audrey and Theodor Geisel School of Medicine, Dartmouth College, Hanover, New Hampshire, USA
| | - Joi B Carter
- Audrey and Theodor Geisel School of Medicine, Dartmouth College, Hanover, New Hampshire, USA.,Section of Dermatology, Department of Surgery, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA
| | - Prabhjot Kaur
- Department of Pathology and Laboratory Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA.,Audrey and Theodor Geisel School of Medicine, Dartmouth College, Hanover, New Hampshire, USA
| | - Frederick Lansigan
- Audrey and Theodor Geisel School of Medicine, Dartmouth College, Hanover, New Hampshire, USA.,Section of Hematology/Oncology, Department of Medicine, Dartmouth-Hitchcock Medical Center; Lebanon, NHe, Hanover, New Hampshire, USA
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A novel transgenic mouse strain expressing PKCβII demonstrates expansion of B1 and marginal zone B cell populations. Sci Rep 2020; 10:13156. [PMID: 32753714 PMCID: PMC7403146 DOI: 10.1038/s41598-020-70191-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 07/21/2020] [Indexed: 01/08/2023] Open
Abstract
Protein kinase Cβ (PKCβ) expressed in mammalian cells as two splice variants, PKCβI and PKCβII, functions in the B cell receptor (BCR) signaling pathway and contributes to B cell development. We investigated the relative role of PKCβII in B cells by generating transgenic mice where expression of the transgene is directed to these cells using the Eµ promoter (Eµ-PKCβIItg). Our findings demonstrate that homozygous Eµ-PKCβIItg mice displayed a shift from IgD+IgMdim toward IgDdimIgM+ B cell populations in spleen, peritoneum and peripheral blood. Closer examination of these tissues revealed respective expansion of marginal zone (MZ)-like B cells (IgD+IgM+CD43negCD21+CD24+), increased populations of B-1 cells (B220+IgDdimIgM+CD43+CD24+CD5+), and higher numbers of immature B cells (IgDdimIgMdimCD21neg) at the expense of mature B cells (IgD+IgM+CD21+). Therefore, the overexpression of PKCβII, which is a phenotypic feature of chronic lymphocytic leukaemia cells, can skew B cell development in mice, most likely as a result of a regulatory influence on BCR signaling.
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Parikh SA, Gale RP, Kay NE. Chronic lymphocytic leukemia in 2020: a surfeit of riches? Leukemia 2020; 34:1979-1983. [PMID: 32393844 PMCID: PMC8130839 DOI: 10.1038/s41375-020-0852-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/23/2020] [Accepted: 04/27/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Sameer A Parikh
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN, USA.
| | - Robert Peter Gale
- Department of Immunology and Inflammation, Centre for Haematology, Imperial College London, London, UK
| | - Neil E Kay
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
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Kleinstern G, O'Brien DR, Li X, Tian S, Kabat BF, Rabe KG, Norman AD, Yan H, Vachon CM, Boddicker NJ, Call TG, Parikh SA, Bruins L, Bonolo de Campos C, Leis JF, Shanafelt TD, Ding W, Cerhan JR, Kay NE, Slager SL, Braggio E. Tumor mutational load predicts time to first treatment in chronic lymphocytic leukemia (CLL) and monoclonal B-cell lymphocytosis beyond the CLL international prognostic index. Am J Hematol 2020; 95:906-917. [PMID: 32279347 DOI: 10.1002/ajh.25831] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/21/2020] [Accepted: 04/08/2020] [Indexed: 01/01/2023]
Abstract
Next-generation sequencing identified about 60 genes recurrently mutated in chronic lymphocytic leukemia (CLL). We examined the additive prognostic value of the total number of recurrently mutated CLL genes (i.e., tumor mutational load [TML]) or the individually mutated genes beyond the CLL international prognostic index (CLL-IPI) in newly diagnosed CLL and high-count monoclonal B-cell lymphocytosis (HC MBL). We sequenced 59 genes among 557 individuals (112 HC MBL/445 CLL) in a multi-stage design, to estimate hazard ratios (HR) and 95% confidence intervals (CI) for time-to-first treatment (TTT), adjusted for CLL-IPI and sex. TML was associated with shorter TTT in the discovery and validation cohorts, with a combined estimate of continuous HR = 1.27 (CI:1.17-1.39, P = 2.6 × 10-8 ; c-statistic = 0.76). When stratified by CLL-IPI, the association of TML with TTT was stronger and validated within low/intermediate risk (combined HR = 1.54, CI:1.37-1.72, P = 7.0 × 10-14 ). Overall, 80% of low/intermediate CLL-IPI cases with two or more mutated genes progressed to require therapy within 5 years, compared to 24% among those without mutations. TML was also associated with shorter TTT in the HC MBL cohort (HR = 1.53, CI:1.12-2.07, P = .007; c-statistic = 0.71). TML is a strong prognostic factor for TTT independent of CLL-IPI, especially among low/intermediate CLL-IPI risk, and a better predictor than any single gene. Mutational screening at early stages may improve risk stratification and better predict TTT.
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Affiliation(s)
- Geffen Kleinstern
- Department of Health Sciences ResearchMayo Clinic Rochester Minnesota USA
| | - Daniel R. O'Brien
- Department of Health Sciences ResearchMayo Clinic Rochester Minnesota USA
| | - Xing Li
- Department of Health Sciences ResearchMayo Clinic Rochester Minnesota USA
| | - Shulan Tian
- Department of Health Sciences ResearchMayo Clinic Rochester Minnesota USA
| | - Brian F. Kabat
- Department of Health Sciences ResearchMayo Clinic Rochester Minnesota USA
| | - Kari G. Rabe
- Department of Health Sciences ResearchMayo Clinic Rochester Minnesota USA
| | - Aaron D. Norman
- Department of Health Sciences ResearchMayo Clinic Rochester Minnesota USA
| | - Huihuang Yan
- Department of Health Sciences ResearchMayo Clinic Rochester Minnesota USA
| | - Celine M. Vachon
- Department of Health Sciences ResearchMayo Clinic Rochester Minnesota USA
| | | | | | | | - Laura Bruins
- Division of Hematology /OncologyMayo Clinic Scottsdale Arizona USA
| | | | - Jose F. Leis
- Division of Hematology /OncologyMayo Clinic Scottsdale Arizona USA
| | - Tait D. Shanafelt
- Department of Medicine, Division of HematologyStanford University Stanford California USA
| | - Wei Ding
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | - James R. Cerhan
- Department of Health Sciences ResearchMayo Clinic Rochester Minnesota USA
| | - Neil E. Kay
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | - Susan L. Slager
- Department of Health Sciences ResearchMayo Clinic Rochester Minnesota USA
| | - Esteban Braggio
- Division of Hematology /OncologyMayo Clinic Scottsdale Arizona USA
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Dreessen L, Maréchal N, Verheyden M, De Becker A, Jochmans K, Vanderhasselt T, Bravenboer B, Beyer I. Leptomeningeal metastasis in a marginal zone lymphoma, presenting as a delirium: case report. BMC Geriatr 2020; 20:213. [PMID: 32552693 PMCID: PMC7298837 DOI: 10.1186/s12877-020-01608-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 06/08/2020] [Indexed: 11/23/2022] Open
Abstract
Background Hematologic malignancies can spread to the central nervous system (CNS), either as focal lesions or as leptomeningeal disease. Marginal zone lymphoma (MZL) is a low-grade non-Hodgkin lymphoma and generally presents as an indolent disease. This case report illustrates an unexpected diagnosis of leptomeningeal metastasis in an MZL, presenting as a delirium without B symptoms, pronounced hematologic progression or abnormalities on cerebral imaging. Case presentation An 80-year-old patient with a medical history of monoclonal B-cell lymphocytosis (MBL) with a clone indicative for an MZL, presented to the emergency and the geriatric departments with a recent cognitive deterioration and behavioral changes. MMSE score was 18/30. After excluding the most common etiologies through classical work-up including a normal head magnetic resonance imaging, a lumbar puncture was performed. In the cerebrospinal fluid an elevated protein level and increased lymphocyte count were identified, whereas beta-amyloid and tau protein levels were normal. Immunophenotyping of the lymphocytes confirmed CNS invasion by the MZL clone. Staging revealed mild splenomegaly. Prednisolone, intrathecal and systemic chemotherapy were initiated, leading to quick cognitive improvement with a final MMSE score of 28/30. Conclusions To the best of our knowledge a delirium in an older patient due to leptomeningeal disease in MZL has never been described. To date, rare reports of CNS invasion by MZL describe focal intracranial lesions. After exclusion of common etiologies, physicians should remain vigilant when confronted with a patient with history of MBL presenting neurological symptoms. This case illustrates the importance of low threshold for lumbar punctures in this population, also for those patients with normal imaging studies.
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Affiliation(s)
- Lisa Dreessen
- Department of Geriatric Medicine, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090, Brussels, Belgium.
| | - Nicolas Maréchal
- Department of Geriatric Medicine, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090, Brussels, Belgium
| | - Michel Verheyden
- Department of Internal Medicine, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090, Brussels, Belgium
| | - Ann De Becker
- Department of Hematology, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090, Brussels, Belgium
| | - Kristin Jochmans
- Department of Hematology, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090, Brussels, Belgium
| | - Tim Vanderhasselt
- Department of Radiology, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090, Brussels, Belgium
| | - Bert Bravenboer
- Department of Geriatric Medicine, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090, Brussels, Belgium
| | - Ingo Beyer
- Department of Geriatric Medicine, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Laarbeeklaan 101, 1090, Brussels, Belgium
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Kassem S, Fouda M, Akef A, Elnaghi K, Fahmi M, Eisa N, Rashwan M. A higher frequency of monoclonal B cell lymphocytosis among Egyptian relatives of CLL patients. Leuk Lymphoma 2020; 61:2242-2245. [PMID: 32397841 DOI: 10.1080/10428194.2020.1761971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Sara Kassem
- Clinical Pathology Department, Ministry of Health, Cairo, Egypt
| | - Manal Fouda
- Clinical Pathology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Ahmed Akef
- Clinical Pathology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Khalid Elnaghi
- Internal Medicine Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt.,Medical Oncology Department, Oncology Centre, Mansoura University, Mansoura, Egypt
| | - Maryan Fahmi
- Internal Medicine Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt.,Medical Oncology Department, Oncology Centre, Mansoura University, Mansoura, Egypt
| | - Noha Eisa
- Internal Medicine Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt.,Clinical Haematology Department, Oncology Centre, Mansoura University, Mansoura, Egypt
| | - Mohamad Rashwan
- Clinical Pathology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
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34
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Risk of serious infection among individuals with and without low count monoclonal B-cell lymphocytosis (MBL). Leukemia 2020; 35:239-244. [PMID: 32203143 DOI: 10.1038/s41375-020-0799-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 02/27/2020] [Accepted: 03/09/2020] [Indexed: 12/28/2022]
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35
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Leung N, Bridoux F, Batuman V, Chaidos A, Cockwell P, D'Agati VD, Dispenzieri A, Fervenza FC, Fermand JP, Gibbs S, Gillmore JD, Herrera GA, Jaccard A, Jevremovic D, Kastritis E, Kukreti V, Kyle RA, Lachmann HJ, Larsen CP, Ludwig H, Markowitz GS, Merlini G, Mollee P, Picken MM, Rajkumar VS, Royal V, Sanders PW, Sethi S, Venner CP, Voorhees PM, Wechalekar AD, Weiss BM, Nasr SH. The evaluation of monoclonal gammopathy of renal significance: a consensus report of the International Kidney and Monoclonal Gammopathy Research Group. Nat Rev Nephrol 2019; 15:45-59. [PMID: 30510265 PMCID: PMC7136169 DOI: 10.1038/s41581-018-0077-4] [Citation(s) in RCA: 292] [Impact Index Per Article: 58.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The term monoclonal gammopathy of renal significance (MGRS) was introduced by the International Kidney and Monoclonal Gammopathy Research Group (IKMG) in 2012. The IKMG met in April 2017 to refine the definition of MGRS and to update the diagnostic criteria for MGRS-related diseases. Accordingly, in this Expert Consensus Document, the IKMG redefines MGRS as a clonal proliferative disorder that produces a nephrotoxic monoclonal immunoglobulin and does not meet previously defined haematological criteria for treatment of a specific malignancy. The diagnosis of MGRS-related disease is established by kidney biopsy and immunofluorescence studies to identify the monotypic immunoglobulin deposits (although these deposits are minimal in patients with either C3 glomerulopathy or thrombotic microangiopathy). Accordingly, the IKMG recommends a kidney biopsy in patients suspected of having MGRS to maximize the chance of correct diagnosis. Serum and urine protein electrophoresis and immunofixation, as well as analyses of serum free light chains, should also be performed to identify the monoclonal immunoglobulin, which helps to establish the diagnosis of MGRS and might also be useful for assessing responses to treatment. Finally, bone marrow aspiration and biopsy should be conducted to identify the lymphoproliferative clone. Flow cytometry can be helpful in identifying small clones. Additional genetic tests and fluorescent in situ hybridization studies are helpful for clonal identification and for generating treatment recommendations. Treatment of MGRS was not addressed at the 2017 IKMG meeting; consequently, this Expert Consensus Document does not include any recommendations for the treatment of patients with MGRS. This Expert Consensus Document from the International Kidney and Monoclonal Gammopathy Research Group includes an updated definition of monoclonal gammopathy of renal significance (MGRS) and recommendations for the use of kidney biopsy and other modalities for evaluating suspected MGRS
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Affiliation(s)
- Nelson Leung
- Division of Nephrology, Hematology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA.
| | - Frank Bridoux
- Department of Nephrology, Centre Hospitalier Universitaire et Université de Poitiers, Poitiers, France; CNRS UMR7276, Limoges, France; and Centre de Référence Amylose AL et Autres Maladies par Dépôt d'Immunoglobulines Monoclonales, Poitiers, France
| | - Vecihi Batuman
- Veterans Administration Medical Center, New Orleans, LA, USA and Tulane University Medical School, Tulane, LA, USA
| | - Aristeidis Chaidos
- Centre for Haematology, Department of Medicine, Imperial College London and Imperial College Healthcare NHS Trust, Hammersmith Hospital, London, UK
| | - Paul Cockwell
- Department of Nephrology, Renal Medicine - University Hospitals Birmingham NHS Foundation Trust, Queen Elizabeth Hospital, Birmingham, UK
| | - Vivette D D'Agati
- Department of Pathology, Renal Pathology Laboratory, Columbia University, College of Physicians and Surgeons, New York, NY, USA
| | - Angela Dispenzieri
- Division of Nephrology, Hematology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Fernando C Fervenza
- Division of Nephrology, Hematology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Jean-Paul Fermand
- Department of Haematology and Immunology, University Hospital St Louis, Paris, France
| | - Simon Gibbs
- The Victorian and Tasmanian Amyloidosis Service, Department of Haematology, Monash Univerity Easter Health Clinical School, Melbourne, Victoria, Australia
| | - Julian D Gillmore
- National Amyloidosis Centre, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, Royal Free Campus, University College London, London, UK
| | - Guillermo A Herrera
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Sciences Center, Shreveport, LA, USA
| | - Arnaud Jaccard
- Service d'Hématologie et de Thérapie Cellulaire, Centre de Référence des Amyloses Primitives et des Autres Maladies par Dépôts d'Immunoglobuline, CHU Limoges, Limoges, France
| | - Dragan Jevremovic
- Division of Nephrology, Hematology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Efstathios Kastritis
- Department of Clinical Therapeutics, School of Medicine National and Kapodistrian University of Athens Alexandra Hospital, Athens, Greece
| | - Vishal Kukreti
- University Health Network, Princess Margaret Cancer Centre, Toronto, Canada
| | - Robert A Kyle
- Division of Nephrology, Hematology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Helen J Lachmann
- National Amyloidosis Centre, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, Royal Free Campus, University College London, London, UK
| | | | - Heinz Ludwig
- Wilhelminen Cancer Research Institute, Wilhelminenspital, Vienna, Austria
| | - Glen S Markowitz
- Department of Pathology, Renal Pathology Laboratory, Columbia University, College of Physicians and Surgeons, New York, NY, USA
| | - Giampaolo Merlini
- Amyloidosis Research and Treatment Center, IRCCS Policlinico San Matteo, University of Pavia, Pavia, Italy
| | - Peter Mollee
- Haematology Department, Princess Alexandra Hospital and School of Medicine, University of Queensland, Brisbane, Australia
| | - Maria M Picken
- Department of Pathology, Loyola University Medical Center, Maywood, IL, USA
| | - Vincent S Rajkumar
- Division of Nephrology, Hematology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Virginie Royal
- Department of Pathology, Hôpital Maisonneuve-Rosemont, Université de Montreal, Montreal, Quebec, Canada
| | - Paul W Sanders
- Department of Medicine, University of Alabama at Birmingham and Department of Veterans Affairs Medical Center, Birmingham, AL, USA
| | - Sanjeev Sethi
- Division of Nephrology, Hematology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | | | - Peter M Voorhees
- Department of Hematologic Oncology and Blood Disorders, Levine Cancer Institute, Atrium System, Charlotte, NC, USA
| | - Ashutosh D Wechalekar
- National Amyloidosis Centre, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, Royal Free Campus, University College London, London, UK
| | - Brendan M Weiss
- Abramson Cancer Center, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA
| | - Samih H Nasr
- Division of Nephrology, Hematology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
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Abstract
Chronic lymphocytic leukaemia (CLL), the most frequent type of leukaemia in adults, is a lymphoproliferative disorder that is characterized by the expansion of monoclonal, mature CD5+CD23+ B cells in the peripheral blood, secondary lymphoid tissues and bone marrow. CLL is an incurable disease with a heterogeneous clinical course, for which the treatment decision still relies on conventional parameters (such as clinical stage and lymphocyte doubling time). During the past 5 years, relevant advances have been made in understanding CLL biology. Indeed, substantial progress has been made in the identification of the putative cell of origin of CLL, and comprehensive studies have dissected the genomic, epigenomic and transcriptomic landscape of CLL. Advances in clinical management include improvements in our understanding of the prognostic value of different genetic lesions, particularly those associated with chemoresistance and progression to highly aggressive forms of CLL, and the advent of new therapies targeting crucial biological pathways. In this Review, we discuss new insights into the genetic lesions involved in the pathogenesis of CLL and how these genetic insights influence clinical management and the development of new therapeutic strategies for this disease.
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Abstract
Technical advances in diagnostic modalities have led to the characterization of indolent lymphoid disorders similar to the in situ lesions described in epithelial malignancies. These early and indolent lymphoid lesions share clinicopathologic characteristics with well-characterized lymphoid malignancies such as chronic lymphocytic leukemia and follicular lymphoma. The in situ lesions have an indolent clinical course with only a minor subset shown to progress to frank malignancies. In addition to the in situ lesions, new indolent lymphoproliferative disorders have been recently characterized. Diagnosis and characterization of these indolent lesions is necessary to prevent overtreatment with aggressive therapeutic regimens.
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Affiliation(s)
- Sudhir Perincheri
- Department of Pathology, Yale School of Medicine, 310 Cedar Street, Suite LB20, New Haven, CT 06510, USA.
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38
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Russi S, Vincenti A, Vinella A, Mariggiò MA, Pavone F, Dammacco F, Lauletta G. CD5/CD20 expression on circulating B cells in HCV-related chronic hepatitis and mixed cryoglobulinemia. Eur J Intern Med 2019; 66:48-56. [PMID: 31126779 DOI: 10.1016/j.ejim.2019.05.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 04/09/2019] [Accepted: 05/14/2019] [Indexed: 02/06/2023]
Abstract
The role of CD5+ B cells in patients with HCV infection and HCV-related disorders, including mixed cryoglobulinemia (MC), has been addressed in previous reports with conflicting results. We established a correlation between CD5/CD20 expression on circulating B lymphocytes, characterizing monoclonal B cell lymphocytosis (MBL), and clinical features in a cohort of 45 patients with chronic HCV hepatitis [without MC: 23 patients (MC- group); with MC: 22 patients (MC+ group)], and 45 HCV-negative healthy subjects as controls. By flow cytometry analysis, three B cells phenotypes were singled out: 1) CD5+CD20dim (CLL-like phenotype); 2) CD5+CD20bright (atypical phenotype); and 3) CD5-CD20+ phenotype. CD5+CD20bright cells were reduced in MC- patients (p=0.049). CD5+CD20dim B cells were significantly higher in group B than in the control group (p=0.003). ROC curve analysis in MC+ patients showed the highest positive likelihood ratio at ≥7.35% (p=0.008) for CLL-like phenotype and at ≤63.6% (p=0.03) for the CD5-CD20+ B cell phenotype. HCV infection was associated with a higher frequency of CLL-like (odds ratio=16, p=0.002) and a lower frequency of atypical (odds ratio: 3.1, p=0.02) and CD5-CD20+ (odds ratio: 11, p=0.01) phenotypes. The association with higher levels of CLL-like phenotype progressively increased from group of MC- patients (odds ratio: 9.3, p=0.04) to the group of MC+ patients (odds ratio: 25.1, p=0.0003). CONCLUSIONS: The occurrence of a CLL-like pattern may allow to identify HCV-infected patients at risk of developing MC and eventually non-Hodgkin lymphoma, who should require a closer surveillance and a longer follow-up.
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Affiliation(s)
- Sabino Russi
- Department of Biomedical Sciences and Human Oncology, University of Bari "Aldo Moro", Bari, Italy; Laboratory of Pre-Clinical and Translational Research, IRCCS-CROB, Referral Cancer Center of Basilicata, Rionero in Vulture, PZ, Italy.
| | - Alessandra Vincenti
- Department of Biomedical Sciences and Human Oncology, University of Bari "Aldo Moro", Bari, Italy
| | - Angela Vinella
- Department of Biomedical Sciences and Human Oncology, University of Bari "Aldo Moro", Bari, Italy.
| | | | - Fabio Pavone
- Department of Biomedical Sciences and Human Oncology, University of Bari "Aldo Moro", Bari, Italy; Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST), IRCCS, Meldola, FC, Italy
| | - Franco Dammacco
- Department of Biomedical Sciences and Human Oncology, University of Bari "Aldo Moro", Bari, Italy.
| | - Gianfranco Lauletta
- Department of Biomedical Sciences and Human Oncology, University of Bari "Aldo Moro", Bari, Italy.
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Haferlach C, Haferlach T. Dreams can come true: the first steps toward a peripheral blood screening test for the early detection of tumors have been taken. Ann Oncol 2019; 30:12-13. [PMID: 30462156 DOI: 10.1093/annonc/mdy499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- C Haferlach
- Munich Leukemia Laboratory, Munich, Germany.
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40
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Angelillo P, Capasso A, Ghia P, Scarfò L. Monoclonal B-cell lymphocytosis: Does the elderly patient need a specialistic approach? Eur J Intern Med 2018; 58:2-6. [PMID: 30268574 DOI: 10.1016/j.ejim.2018.09.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 09/10/2018] [Indexed: 12/13/2022]
Abstract
Monoclonal B-cell lymphocytosis (MBL) is defined by the presence of a monoclonal B-cell population in the peripheral blood (PB) at a concentration of <5 × 109/l and no signs or symptoms of a lymphoproliferative disorder. In around 75% of cases, the immunophenotype of the clonal B-cell expansions is superimposable to that of chronic lymphocytic leukemia (CLL), thus defined "CLL-like". Other cases may coexpress CD19, CD5, bright CD20, and lack CD23 ("atypical CLL"), while others are CD5-negative ("non-CLL"). Beside the immunophenotypic profile, a key distinction is based on the B-cell count, stratifying the MBL category in low (<0.5 × 109/l) or high-count (≥0.5 × 109/l). Low-count (LC) MBL is recognized in general population studies and it is not associated with lymphocytosis. High-count (HC) MBL is identified during the clinical work-up for lymphocytosis and carries a risk of progression to CLL requiring therapy of 1-2% per year in most series, warranting clinical monitoring over time. At the time of MBL diagnosis, the key point is the careful evaluation and exclusion of differential diagnoses. After the initial workup, the follow-up at a referral center by a hematologist would be desirable as, in addition to the obvious risk of progression to clinically relevant CLL, the appropriate management of MBL individuals should take into account the risk of developing infections, other cancers and autoimmune disorders. For those cases who indeed bear a risk, though limited, of clinical consequences, such as the majority of HC-MBL cases, current evidences suggest that they may benefit from a tailored and specialized approach.
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Affiliation(s)
- Piera Angelillo
- Strategic Research Program on CLL, Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele, Milano, Italy
| | - Antonella Capasso
- Strategic Research Program on CLL, Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele, Milano, Italy
| | - Paolo Ghia
- Strategic Research Program on CLL, Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele, Milano, Italy.
| | - Lydia Scarfò
- Strategic Research Program on CLL, Università Vita-Salute San Raffaele and IRCCS Ospedale San Raffaele, Milano, Italy
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41
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Alfano G, Fontana F, Colaci E, Franceschini E, Ligabue G, Messerotti A, Bettelli F, Grottola A, Gennari W, Potenza L, Guaraldi G, Mussini C, Luppi M, Cappelli G. Immunophenotypic profile and clinical outcome of monoclonal B-cell lymphocytosis in kidney transplantation. Clin Transplant 2018; 32:e13338. [PMID: 30074641 DOI: 10.1111/ctr.13338] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2017] [Revised: 04/09/2018] [Accepted: 06/23/2018] [Indexed: 12/17/2022]
Abstract
Monoclonal B-cell lymphocytosis (MBL) is a lymphoproliferative disorder characterized by clonal expansion of a B-cell population in peripheral blood of otherwise healthy subjects. MBL is divided into CLL (chronic lymphocytic leukemia)-like, atypical CLL-like and non-CLL MBL. The aim of this study was to evaluate immunophenotypic characteristics and clinical outcomes of MBL in kidney transplant (KT) recipients. We retrospectively evaluated 593 kidney transplant (KT) recipients in follow-up at our center. Among them, 157 patients underwent peripheral blood flow cytometry for different clinical indications. A 6-color panel flow cytometry was used to diagnose MBL. This condition was detected in 5 of 157 KT recipients. Immunophenotypic characterization of MBL showed four cases of non-CLL MBL and one case of CLL-like MBL. At presentation, median age was 65 years (range 61-73). After a median follow-up of 3.1 years (95%CI; 1.1-5) from diagnosis, patients did not progress either to CLL or to lymphoma. The disorder did not increase the risk of malignancy, severe infections, graft loss and mortality among our KT recipients. Surprisingly, all cases were also affected by concomitant monoclonal gammopathy of undetermined significance, which did not progress to multiple myeloma during follow-up. In conclusion, our data suggest that MBL is an age-related disorder, with non-CLL MBL being the most common subtype among KT recipients.
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Affiliation(s)
- Gaetano Alfano
- Section of Nephrology, Surgical, Medical and Dental Department of Morphological Sciences, University of Modena and Reggio Emilia, Azienda Ospedaliero - Universitaria Policlinico, Modena, Italy
| | - Francesco Fontana
- Section of Nephrology, Surgical, Medical and Dental Department of Morphological Sciences, University of Modena and Reggio Emilia, Azienda Ospedaliero - Universitaria Policlinico, Modena, Italy
| | - Elisabetta Colaci
- Section of Hematology, Surgical, Medical and Dental Department of Morphological Sciences, University of Modena and Reggio Emilia, Azienda Ospedaliero - Universitaria Policlinico, Modena, Italy
| | - Erica Franceschini
- Clinic of Infectious Diseases, University of Modena and Reggio Emilia, Azienda Ospedaliero - Universitaria Policlinico, Modena, Italy
| | - Giulia Ligabue
- Section of Nephrology, Surgical, Medical and Dental Department of Morphological Sciences, University of Modena and Reggio Emilia, Azienda Ospedaliero - Universitaria Policlinico, Modena, Italy
| | - Andrea Messerotti
- Section of Hematology, Surgical, Medical and Dental Department of Morphological Sciences, University of Modena and Reggio Emilia, Azienda Ospedaliero - Universitaria Policlinico, Modena, Italy
| | - Francesca Bettelli
- Section of Hematology, Surgical, Medical and Dental Department of Morphological Sciences, University of Modena and Reggio Emilia, Azienda Ospedaliero - Universitaria Policlinico, Modena, Italy
| | - Antonella Grottola
- Microbiology and Virology Unit, Azienda Ospedaliero - Universitaria Policlinico, Modena, Italy
| | - William Gennari
- Microbiology and Virology Unit, Azienda Ospedaliero - Universitaria Policlinico, Modena, Italy
| | - Leonardo Potenza
- Section of Hematology, Surgical, Medical and Dental Department of Morphological Sciences, University of Modena and Reggio Emilia, Azienda Ospedaliero - Universitaria Policlinico, Modena, Italy
| | - Giovanni Guaraldi
- Clinic of Infectious Diseases, University of Modena and Reggio Emilia, Azienda Ospedaliero - Universitaria Policlinico, Modena, Italy
| | - Cristina Mussini
- Clinic of Infectious Diseases, University of Modena and Reggio Emilia, Azienda Ospedaliero - Universitaria Policlinico, Modena, Italy
| | - Mario Luppi
- Section of Hematology, Surgical, Medical and Dental Department of Morphological Sciences, University of Modena and Reggio Emilia, Azienda Ospedaliero - Universitaria Policlinico, Modena, Italy
| | - Gianni Cappelli
- Section of Nephrology, Surgical, Medical and Dental Department of Morphological Sciences, University of Modena and Reggio Emilia, Azienda Ospedaliero - Universitaria Policlinico, Modena, Italy
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Brandt A, Matschke J, Fehrle W, von Wenserski L, Bokemeyer C, Illerhaus G, Binder M. A significant proportion of patients with primary central nervous system lymphoma harbor clonal bone marrow B-cells. Leuk Lymphoma 2018; 60:334-340. [DOI: 10.1080/10428194.2018.1482538] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Anna Brandt
- Department of Oncology, Hematology and Bone Marrow Transplantation with section Pneumology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jakob Matschke
- Department of Neuropathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Wilfried Fehrle
- Department of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Lisa von Wenserski
- Department of Oncology, Hematology and Bone Marrow Transplantation with section Pneumology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Carsten Bokemeyer
- Department of Oncology, Hematology and Bone Marrow Transplantation with section Pneumology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Gerald Illerhaus
- Department of Hematology and Oncology, Klinikum Stuttgart, Stuttgart, Germany
| | - Mascha Binder
- Department of Oncology, Hematology and Bone Marrow Transplantation with section Pneumology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Residual normal B-cell profiles in monoclonal B-cell lymphocytosis versus chronic lymphocytic leukemia. Leukemia 2018; 32:2701-2705. [PMID: 29930299 PMCID: PMC6286325 DOI: 10.1038/s41375-018-0164-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 04/27/2018] [Accepted: 05/01/2018] [Indexed: 01/15/2023]
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Parikh SA, Chaffee KG, Larson MC, Hampel PJ, Call TG, Ding W, Kenderian SS, Leis JF, Chanan-Khan AA, Conte MJ, Bowen D, Schwager SM, Slager SL, Hanson CA, Kay NE, Shanafelt TD. Outcomes of a large cohort of individuals with clinically ascertained high-count monoclonal B-cell lymphocytosis. Haematologica 2018; 103:e237-e240. [PMID: 29419435 PMCID: PMC6058787 DOI: 10.3324/haematol.2017.183194] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Sameer A Parikh
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Kari G Chaffee
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - Melissa C Larson
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - Paul J Hampel
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Timothy G Call
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Wei Ding
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Saad S Kenderian
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Jose F Leis
- Department of Hematology and Oncology, Mayo Clinic, Phoenix, AZ, USA
| | | | - Michael J Conte
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Deborah Bowen
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Susan M Schwager
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Susan L Slager
- Division of Biomedical Statistics and Informatics, Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - Curtis A Hanson
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Neil E Kay
- Division of Hematology, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Tait D Shanafelt
- Division of Hematology, Stanford University School of Medicine, Palo Alto, CA, USA
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Jaffe ES. Diagnosis and classification of lymphoma: Impact of technical advances. Semin Hematol 2018; 56:30-36. [PMID: 30573042 DOI: 10.1053/j.seminhematol.2018.05.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 05/08/2018] [Indexed: 01/19/2023]
Abstract
Our current understanding of the normal lymphoid system informs the modern classification of lymphomas. B-cell, T-cell, and natural killer-cell neoplasms often recapitulate normal stages of lymphoid cell differentiation and function. Moreover, the clinical manifestations of lymphomas often reflect the normal function of lymphoid cells in vivo. The multiparameter approach to classification adopted by the Revised European and American Lymphoma and subsequent WHO classifications facilitates the interpretation of clinical and translational studies, and provides a framework for the discovery of molecular alterations that drive these tumors. An accurate and precise classification of disease entities facilitates the discovery of the molecular basis of lymphoid neoplasms in the basic science laboratory, and leads to new diagnostic tools that play a role in clinical diagnosis.
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Affiliation(s)
- Elaine S Jaffe
- Hematopathology Section, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, Bethesda, MD.
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Criado I, Rodríguez-Caballero A, Gutiérrez ML, Pedreira CE, Alcoceba M, Nieto W, Teodosio C, Bárcena P, Romero A, Fernández-Navarro P, González M, Almeida J, Orfao A. Low-count monoclonal B-cell lymphocytosis persists after seven years of follow up and is associated with a poorer outcome. Haematologica 2018; 103:1198-1208. [PMID: 29567775 PMCID: PMC6029554 DOI: 10.3324/haematol.2017.183954] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 03/15/2018] [Indexed: 11/25/2022] Open
Abstract
Low-count monoclonal B-cell lymphocytosis is defined by the presence of very low numbers of circulating clonal B cells, usually phenotypically similar to chronic lymphocytic leukemia cells, whose biological and clinical significance remains elusive. Herein, we re-evaluated 65/91 low-count monoclonal B-cell lymphocytosis cases (54 chronic lymphocytic leukemia-like and 11 non-chronic lymphocytic leukemia-like) followed-up for a median of seven years, using high-sensitivity flow cytometry and interphase fluorescence in situ hybridization. Overall, the clone size significantly increased in 69% of low-count monoclonal B-cell lymphocytosis cases, but only one subject progressed to high-count monoclonal B-cell lymphocytosis. In parallel, the frequency of cytogenetic alterations increased over time (32% vs. 61% of cases, respectively). The absolute number of the major T-cell and natural killer cell populations also increased, but only among chronic lymphocytic leukemia-like cases with increased clone size vs. age- and sex-matched controls. Although progression to chronic lymphocytic leukemia was not observed, the overall survival of low-count monoclonal B-cell lymphocytosis individuals was significantly reduced vs. non-monoclonal B-cell lymphocytosis controls (P=0.03) plus the general population from the same region (P≤0.001), particularly among females (P=0.01); infection and cancer were the main causes of death in low-count monoclonal B-cell lymphocytosis. In summary, despite the fact that mid-term progression from low-count monoclonal B-cell lymphocytosis to high-count monoclonal B-cell lymphocytosis and chronic lymphocytic leukemia appears to be unlikely, these clones persist at increased numbers, usually carrying more genetic alterations, and might thus be a marker of an impaired immune system indirectly associated with a poorer outcome, particularly among females.
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Affiliation(s)
- Ignacio Criado
- Cancer Research Centre (IBMCC, USAL-CSIC), Department of Medicine and Cytometry Service (NUCLEUS), University of Salamanca, IBSAL and CIBERONC, Spain
| | - Arancha Rodríguez-Caballero
- Cancer Research Centre (IBMCC, USAL-CSIC), Department of Medicine and Cytometry Service (NUCLEUS), University of Salamanca, IBSAL and CIBERONC, Spain
| | - M Laura Gutiérrez
- Cancer Research Centre (IBMCC, USAL-CSIC), Department of Medicine and Cytometry Service (NUCLEUS), University of Salamanca, IBSAL and CIBERONC, Spain
| | - Carlos E Pedreira
- Systems and Computing Department (PESC), COPPE, Federal University of Rio de Janeiro (UFRJ), Brazil
| | - Miguel Alcoceba
- Hematology Service, University Hospital of Salamanca, IBMCC, IBSAL, CIBERONC and Department of Nursery and Physiotherapy, University of Salamanca, Spain
| | - Wendy Nieto
- Cancer Research Centre (IBMCC, USAL-CSIC), Department of Medicine and Cytometry Service (NUCLEUS), University of Salamanca, IBSAL and CIBERONC, Spain
| | - Cristina Teodosio
- Cancer Research Centre (IBMCC, USAL-CSIC), Department of Medicine and Cytometry Service (NUCLEUS), University of Salamanca, IBSAL and CIBERONC, Spain
| | - Paloma Bárcena
- Cancer Research Centre (IBMCC, USAL-CSIC), Department of Medicine and Cytometry Service (NUCLEUS), University of Salamanca, IBSAL and CIBERONC, Spain
| | - Alfonso Romero
- Centro de Atención Primaria de Salud Miguel Armijo, Salamanca, Sanidad de Castilla y León (SACYL), Spain
| | - Paulino Fernández-Navarro
- Centro de Atención Primaria de Salud de Ledesma, Salamanca, Sanidad de Castilla y León (SACYL), Spain
| | - Marcos González
- Hematology Service, University Hospital of Salamanca, IBMCC, IBSAL, CIBERONC and Department of Nursery and Physiotherapy, University of Salamanca, Spain
| | - Julia Almeida
- Cancer Research Centre (IBMCC, USAL-CSIC), Department of Medicine and Cytometry Service (NUCLEUS), University of Salamanca, IBSAL and CIBERONC, Spain
| | - Alberto Orfao
- Cancer Research Centre (IBMCC, USAL-CSIC), Department of Medicine and Cytometry Service (NUCLEUS), University of Salamanca, IBSAL and CIBERONC, Spain
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Vander Meeren S, Heyrman B, Renmans W, Bakkus M, Maes B, De Raeve H, Schots R, Jochmans K. Lymphoma-like monoclonal B cell lymphocytosis in a patient population: biology, natural evolution, and differences from CLL-like clones. Ann Hematol 2018; 97:1219-1227. [PMID: 29492600 DOI: 10.1007/s00277-018-3282-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 02/16/2018] [Indexed: 01/23/2023]
Abstract
High-count monoclonal B cell lymphocytosis (MBL) with a chronic lymphocytic leukemia (CLL) phenotype is a well-known entity, featuring 1-4% annual risk of progression towards CLL requiring treatment. Lymphoma-like MBL (L-MBL), on the other hand, remains poorly defined and data regarding outcome are lacking. We retrospectively evaluated 33 L-MBL cases within our hospital population and compared them to 95 subjects with CLL-like MBL (C-MBL). Diagnoses of L-MBL were based on asymptomatic B cell clones with Matutes score < 3, B cells < 5.0 × 103/μl, and negative computerized tomography scans. We found that median B cell counts were considerably lower compared to C-MBL (0.6 vs 2.3 × 103/μl) and remained stable over time. Based on immunophenotyping and immunogenetic profiling, most L-MBL clones did not correspond to known lymphoma entities. A strikingly high occurrence of paraproteinemia (48%), hypogammaglobulinemia (45%), and biclonality (21%) was seen; these incidences being significantly higher than in C-MBL (17, 21, and 5%, respectively). Unrelated monoclonal gammopathy of undetermined significance was a frequent feature, as the light chain type of 5/12 paraproteins detected was different from the clonal surface immunoglobulin. After 46-month median follow-up, 2/24 patients (8%) had progressed towards indolent lymphoma requiring no treatment. In contrast, 41% of C-MBL cases evolved to CLL and 17% required treatment. We conclude that clinical L-MBL is characterized by pronounced immune dysregulation and very slow or absent progression, clearly separating it from its CLL-like counterpart.
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Affiliation(s)
- Sam Vander Meeren
- Department of Clinical Biology, Hematology Division, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium.
| | - Bert Heyrman
- Department of Internal Medicine, Hematology Division, ZNA Middelheim, Antwerpen, Belgium
| | - Wim Renmans
- Department of Clinical Biology, Hematology Division, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - Marleen Bakkus
- Department of Clinical Biology, Hematology Division, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - Brigitte Maes
- Department of Clinical Biology, Hematology Division, Jessa Ziekenhuis, Hasselt, Belgium
| | - Hendrik De Raeve
- Department of Pathology, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - Rik Schots
- Department of Internal Medicine, Hematology Division, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
| | - Kristin Jochmans
- Department of Clinical Biology, Hematology Division, Vrije Universiteit Brussel (VUB), Universitair Ziekenhuis Brussel (UZ Brussel), Brussels, Belgium
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Rawstron AC, Ssemaganda A, de Tute R, Doughty C, Newton D, Vardi A, Evans PAS, Stamatopoulos K, Owen RG, Lightfoot T, Wakeham K, Karabarinde A, Asiki G, Newton R. Monoclonal B-cell lymphocytosis in a hospital-based UK population and a rural Ugandan population: a cross-sectional study. LANCET HAEMATOLOGY 2018; 4:e334-e340. [PMID: 28668191 PMCID: PMC5493519 DOI: 10.1016/s2352-3026(16)30192-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 10/04/2016] [Accepted: 11/18/2016] [Indexed: 12/24/2022]
Abstract
Background Reported incidence of B-cell malignancies shows substantial geographical variation, being more common in the Americas and Europe than in Africa. This variation might reflect differences in diagnostic capability, inherited susceptibility, and infectious exposures. Monoclonal B-cell lymphocytosis (MBL) is a precursor lesion that can be screened for in apparently healthy people, allowing comparison of prevalence across different populations independently of health-care provision. We aimed to compare the prevalence and phenotypic characteristics of MBL in age-and-sex-matched populations from rural Uganda and the UK. Methods In this cross-sectional study, we recruited volunteers aged at least 45 years who were seronegative for HIV-1 from the established Ugandan General Population Cohort and obtained their whole-blood samples. We also obtained blood samples from anonymised waste material of age-and-sex-matched individuals (aged >45 years, with a normal blood count and no history of cancer) in the UK. We used flow cytometry to determine the presence of MBL, defined according to standard diagnostic criteria, in the samples and compared differences in the proportion of cases with chronic lymphocytic leukaemia (CLL)-phenotype MBL and CD5-negative MBL, as well as differences in absolute monoclonal B-cell count between the two cohorts. Findings Between Jan 15 and Dec 18, 2012, we obtained samples from 302 Ugandan volunteers and 302 UK individuals who were matched by age and sex to the Ugandan population. Overall MBL prevalence was higher in the Ugandan participants (42 [14%] individuals) than in the UK cohort (25 [8%]; p=0·038). CLL-phenotype MBL was detected in three (1%) Ugandan participants and 21 (7%) UK participants (p=0·00021); all three Ugandan participants had absolute monoclonal B-cell count below one cell per μL, whereas the 21 UK participants had a median absolute number of circulating neoplastic cells of 4·6 (IQR 2–12) cells per μL. The prevalence of CD5-negative MBL was higher in the Ugandan cohort (41 [14%], of whom two [5%] also had CLL-phenotype MBL) than in the UK cohort (six [2%], of whom two [33%] also had CLL-phenotype MBL; p<0·0001), but the median absolute B-cell count was similar (227 [IQR 152–345] cells per μL in the Ugandan cohort vs 135 [105–177] cells per μL in the UK cohort; p=0·13). Interpretation MBL is common in both Uganda and the UK, but the substantial phenotypic differences might reflect fundamental differences in the pathogenesis of B-cell lymphoproliferative disorders. Funding UK Medical Research Council and UK Department for International Development.
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Affiliation(s)
- Andy C Rawstron
- Haematological Malignancy Diagnostic Service, St James's University Hospital, Leeds, UK
| | - Aloysius Ssemaganda
- International AIDS Vaccine Initiative, Uganda Virus Research Institute, Entebbe, Uganda
| | - Ruth de Tute
- Haematological Malignancy Diagnostic Service, St James's University Hospital, Leeds, UK
| | - Chi Doughty
- Haematological Malignancy Diagnostic Service, St James's University Hospital, Leeds, UK
| | - Darren Newton
- Section of Experimental Haematology, University of Leeds, Leeds, UK
| | - Anna Vardi
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece
| | - Paul A S Evans
- Haematological Malignancy Diagnostic Service, St James's University Hospital, Leeds, UK
| | - Kostas Stamatopoulos
- Institute of Applied Biosciences, Centre for Research and Technology Hellas, Thessaloniki, Greece; Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Roger G Owen
- Haematological Malignancy Diagnostic Service, St James's University Hospital, Leeds, UK
| | - Tracy Lightfoot
- Epidemiology and Cancer Statistics Group, Department of Health Sciences, University of York, York, UK
| | - Katie Wakeham
- Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Alex Karabarinde
- Medical Research Council/Uganda Virus Research Institute Uganda Research Unit on AIDS, Entebbe, Uganda
| | - Gershim Asiki
- Medical Research Council/Uganda Virus Research Institute Uganda Research Unit on AIDS, Entebbe, Uganda
| | - Robert Newton
- Epidemiology and Cancer Statistics Group, Department of Health Sciences, University of York, York, UK; Medical Research Council/Uganda Virus Research Institute Uganda Research Unit on AIDS, Entebbe, Uganda.
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49
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Monoclonal Gammopathy of Undetermined Significance After Kidney Transplantation. Transplantation 2017; 101:e337-e342. [DOI: 10.1097/tp.0000000000001884] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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50
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Ghia P, Nadel B, Sander B, Stamatopoulos K, Stevenson FK. Early stages in the ontogeny of small B-cell lymphomas: genetics and microenvironment. J Intern Med 2017; 282:395-414. [PMID: 28393412 DOI: 10.1111/joim.12608] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
In this review, we focus on the mechanisms underlying lymphomagenesis in chronic lymphocytic leukaemia, follicular lymphoma, mantle cell lymphoma and splenic marginal zone lymphoma. The cells of origin of these small B-cell lymphomas are distinct, as are the characteristic chromosomal lesions and clinical courses. One shared feature is retention of expression of surface immunoglobulin. Analysis of this critical receptor reveals the point of differentiation reached by the cell of origin. Additionally, the sequence patterns of the immunoglobulin-variable domains can indicate a role for stimulants of the B-cell receptor before, during and after malignant transformation. The pathways driven via the B-cell receptor are now being targeted by specific kinase inhibitors with exciting clinical effects. To consider routes to pathogenesis, potentially offering earlier intervention, or to identify causative factors, genetic tools are being used to track pretransformation events and the early phases in lymphomagenesis. These methods are revealing that chromosomal changes are only one of the many steps involved, and that the influence of surrounding cells, probably multiple and variable according to tissue location, is required, both to establish tumours and to maintain growth and survival. Similarly, the influence of the tumour microenvironment may protect malignant cells from eradication by treatment, and the resulting minimal residual disease will eventually give rise to relapse. The common and different features of the four lymphomas will be summarized to show how normal B lymphocytes can be subverted to generate tumours, how these tumours evolve and how their weaknesses can be attacked by targeted therapies.
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Affiliation(s)
- P Ghia
- Division of Experimental Oncology, Università Vita-Salute San Raffaele and IRCCS San Raffaele Scientific Institute Milan, Milan, Italy
| | - B Nadel
- Aix-Marseille Université, CNRS, INSERM, CIML, Marseille, France
| | - B Sander
- Department of Laboratory Medicine, Division of Pathology, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - K Stamatopoulos
- Institute of Applied Biosciences, Center for Research and Technology Hellas, Thessaloniki, Greece.,Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - F K Stevenson
- Cancer Research UK Centre, Cancer Sciences Unit, University of Southampton Faculty of Medicine, Southampton General Hospital, Southampton, UK
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