1
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Davi F. Prehistory of chronic lymphocytic leukemia: clues from the B-cell receptor. Haematologica 2024; 109:709-711. [PMID: 37731392 PMCID: PMC10905098 DOI: 10.3324/haematol.2023.283799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 09/11/2023] [Indexed: 09/22/2023] Open
Affiliation(s)
- Frederic Davi
- Department of Hematology, AP-HP, Pitié-Salpêtrière Hospital, Sorbonne Université, Paris, France
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2
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Kitamura W, Kobayashi H, Iseki A, Wada H, Maeda Y, Kuyama S. Cold agglutinin-induced acrocyanosis without hemolytic anemia. Ann Hematol 2024; 103:681-683. [PMID: 37940715 DOI: 10.1007/s00277-023-05538-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 11/02/2023] [Indexed: 11/10/2023]
Affiliation(s)
- Wataru Kitamura
- Department of Hematology, National Hospital Organization Iwakuni Clinical Center, 1-1-1, Atago-Cho, Iwakuni, 740-8510, Japan.
- Department of Hematology, Oncology and Respiratory Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1, Shikata-Cho, Kita-Ku, Okayama, 700-8558, Japan.
| | - Hiroki Kobayashi
- Department of Hematology, Oncology and Respiratory Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1, Shikata-Cho, Kita-Ku, Okayama, 700-8558, Japan
| | - Akiko Iseki
- Department of Pathology, National Hospital Organization Iwakuni Clinical Center, 1-1-1, Atago-Cho, Iwakuni, 740-8510, Japan
| | - Hideho Wada
- Department of Hematology, Kawasaki Medical School, 577 Matsushima, Kurashiki, 701-0192, Japan
| | - Yoshinobu Maeda
- Department of Hematology, Oncology and Respiratory Medicine, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 2-5-1, Shikata-Cho, Kita-Ku, Okayama, 700-8558, Japan
| | - Shoichi Kuyama
- Department of Respiratory Medicine, National Hospital Organization Iwakuni Clinical Center, 1-1-1, Atago-Cho, Iwakuni, 740-8510, Japan
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3
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Oliva-Ariza G, Fuentes-Herrero B, Lecrevisse Q, Carbonell C, Pérez-Pons A, Torres-Valle A, Pozo J, Martín-Oterino JÁ, González-López Ó, López-Bernús A, Bernal-Ribes M, Belhassen-García M, Pérez-Escurza O, Pérez-Andrés M, Vazquez L, Hernández-Pérez G, García Palomo FJ, Leoz P, Costa-Alba P, Pérez-Losada E, Yeguas A, Santos Sánchez M, García-Blázquez M, Morán-Plata FJ, Damasceno D, Botafogo V, Muñoz-García N, Fluxa R, van Dongen JJM, Marcos M, Almeida J, Orfao A. Immune cell kinetics and antibody response in COVID-19 patients with low-count monoclonal B-cell lymphocytosis. Am J Hematol 2023; 98:1909-1922. [PMID: 37792579 DOI: 10.1002/ajh.27119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 09/06/2023] [Accepted: 09/19/2023] [Indexed: 10/06/2023]
Abstract
Low-count monoclonal B-cell lymphocytosis (MBLlo ) has been associated with an underlying immunodeficiency and has recently emerged as a new risk factor for severe COVID-19. Here, we investigated the kinetics of immune cell and antibody responses in blood during COVID-19 of MBLlo versus non-MBL patients. For this study, we analyzed the kinetics of immune cells in blood of 336 COVID-19 patients (74 MBLlo and 262 non-MBL), who had not been vaccinated against SARS-CoV-2, over a period of 43 weeks since the onset of infection, using high-sensitivity flow cytometry. Plasma levels of anti-SARS-CoV-2 antibodies were measured in parallel by ELISA. Overall, early after the onset of symptoms, MBLlo COVID-19 patients showed increased neutrophil, monocyte, and particularly, plasma cell (PC) counts, whereas eosinophil, dendritic cell, basophil, and lymphocyte counts were markedly decreased in blood of a variable percentage of samples, and with a tendency toward normal levels from week +5 of infection onward. Compared with non-MBL patients, MBLlo COVID-19 patients presented higher neutrophil counts, together with decreased pre-GC B-cell, dendritic cell, and innate-like T-cell counts. Higher PC levels, together with a delayed PC peak and greater plasma levels of anti-SARS-CoV-2-specific antibodies (at week +2 to week +4) were also observed in MBLlo patients. In summary, MBLlo COVID-19 patients share immune profiles previously described for patients with severe SARS-CoV-2 infection, associated with a delayed but more pronounced PC and antibody humoral response once compared with non-MBL patients.
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Affiliation(s)
- Guillermo Oliva-Ariza
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC - University of Salamanca); Cytometry Service, NUCLEUS, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Blanca Fuentes-Herrero
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC - University of Salamanca); Cytometry Service, NUCLEUS, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Quentin Lecrevisse
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC - University of Salamanca); Cytometry Service, NUCLEUS, University of Salamanca (Universidad de 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
| | - Cristina Carbonell
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Internal Medicine, University Hospital of Salamanca, Salamanca, Spain
| | - Alba Pérez-Pons
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC - University of Salamanca); Cytometry Service, NUCLEUS, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Alba Torres-Valle
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC - University of Salamanca); Cytometry Service, NUCLEUS, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Julio Pozo
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC - University of Salamanca); Cytometry Service, NUCLEUS, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - José Ángel Martín-Oterino
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Internal Medicine, University Hospital of Salamanca, Salamanca, Spain
| | - Óscar González-López
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC - University of Salamanca); Cytometry Service, NUCLEUS, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Amparo López-Bernús
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Internal Medicine, University Hospital of Salamanca, Salamanca, Spain
- Department of Infectious Diseases, University Hospital of Salamanca, Centro de Investigación de Enfermedades Tropicales de la Universidad de Salamanca (CIETUS), Salamanca, Spain
| | - Marta Bernal-Ribes
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC - University of Salamanca); Cytometry Service, NUCLEUS, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
| | - Moncef Belhassen-García
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Internal Medicine, University Hospital of Salamanca, Salamanca, Spain
- Department of Infectious Diseases, University Hospital of Salamanca, Centro de Investigación de Enfermedades Tropicales de la Universidad de Salamanca (CIETUS), Salamanca, Spain
| | - Oihane Pérez-Escurza
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC - University of Salamanca); Cytometry Service, NUCLEUS, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Martín Pérez-Andrés
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC - University of Salamanca); Cytometry Service, NUCLEUS, University of Salamanca (Universidad de 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
| | - Lourdes Vazquez
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Hematology, University Hospital of Salamanca, Salamanca, Spain
| | - Guillermo Hernández-Pérez
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Department of Internal Medicine, University Hospital of Salamanca, Salamanca, Spain
| | | | - Pilar Leoz
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Hematology, University Hospital of Salamanca, Salamanca, Spain
| | - Pilar Costa-Alba
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Emergency Department, University Hospital of Salamanca, Salamanca, Spain
| | - Elena Pérez-Losada
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Intensive Care Department, University Hospital of Salamanca, Salamanca, Spain
| | - Ana Yeguas
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Hematology, University Hospital of Salamanca, Salamanca, Spain
| | - Miryam Santos Sánchez
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC - University of Salamanca); Cytometry Service, NUCLEUS, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | | | - F Javier Morán-Plata
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC - University of Salamanca); Cytometry Service, NUCLEUS, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Daniela Damasceno
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC - University of Salamanca); Cytometry Service, NUCLEUS, University of Salamanca (Universidad de 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
| | - Vitor Botafogo
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC - University of Salamanca); Cytometry Service, NUCLEUS, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Noemí Muñoz-García
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC - University of Salamanca); Cytometry Service, NUCLEUS, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | | | - Jacques J M van Dongen
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC - University of Salamanca); Cytometry Service, NUCLEUS, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
| | - Miguel Marcos
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Internal Medicine, University Hospital of Salamanca, Salamanca, Spain
| | - Julia Almeida
- Translational and Clinical Research Program, Cancer Research Center (IBMCC, CSIC - University of Salamanca); Cytometry Service, NUCLEUS, University of Salamanca (Universidad de 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); Cytometry Service, NUCLEUS, University of Salamanca (Universidad de 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
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4
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Czader M, Amador C, Cook JR, Thakkar D, Parker C, Dave SS, Dogan A, Duffield AS, Nejati R, Ott G, Xiao W, Wasik M, Goodlad JR. Progression and transformation of chronic lymphocytic leukemia/small lymphocytic lymphoma and B-cell prolymphocytic leukemia: Report from the 2021 SH/EAHP Workshop. Am J Clin Pathol 2023; 159:554-571. [PMID: 37052539 PMCID: PMC10233402 DOI: 10.1093/ajcp/aqad027] [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: 11/29/2022] [Accepted: 03/03/2023] [Indexed: 04/14/2023] Open
Abstract
OBJECTIVES Session 3 of the 2021 Workshop of the Society for Hematopathology/European Association for Haematopathology examined progression and transformation of chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) and B-cell prolymphocytic leukemia (B-PLL). METHODS Thirty-one cases were reviewed by the panel. Additional studies such as immunohistochemistry and molecular genetic testing, including whole-exome sequencing and expression profiling, were performed in select cases. RESULTS Session 3 included 27 CLL/SLL cases and miscellaneous associated proliferations, 3 cases of B-PLL, and 1 case of small B-cell lymphoma. The criteria for -accelerated CLL/SLL are established for lymph nodes, but extranodal disease can be diagnostically challenging. Richter transformation (RT) is a broad term and includes true transformation from original CLL/SLL clone(s) and clonally unrelated neoplasms. The morphologic, immunophenotypic, and genetic spectrum is diverse with classical and highly unusual examples. T-cell proliferations can also be encountered in CLL/SLL. B-cell prolymphocytic leukemia is a rare, diagnostically challenging disease due to its overlaps with other lymphoid neoplasms. CONCLUSIONS The workshop highlighted complexity of progression and transformation in CLL/SLL and B-PLL, as well as diagnostic caveats accompanying heterogeneous presentations of RT and other manifestations of disease progression. Molecular genetic studies are pivotal for diagnosis and determination of clonal relationship, and to predict response to treatment and identify resistance to targeted therapy.
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MESH Headings
- Humans
- Leukemia, Lymphocytic, Chronic, B-Cell/diagnosis
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Leukemia, Prolymphocytic, B-Cell
- Lymphoma, B-Cell
- Cell Transformation, Neoplastic/genetics
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Affiliation(s)
- Magdalena Czader
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, US
| | - Catalina Amador
- Department of Pathology and Laboratory Medicine, University of Miami Miller School of Medicine, Miami, FL, US
| | - James R Cook
- Department of Laboratory Medicine, Cleveland Clinic, Cleveland, OH, US
| | - Devang Thakkar
- Department of Medicine, Duke University School of Medicine, Durham, NC, US
| | | | - Sandeep S Dave
- Department of Medicine, Duke University School of Medicine, Durham, NC, US
| | - Ahmet Dogan
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, US
| | - Amy S Duffield
- Department of Pathology and Laboratory Medicine, Icahn School of Medicine at Mount Sinai Hospital, New York, NY, US
| | - Reza Nejati
- Department of Pathology, Fox Chase Cancer Center, Philadelphia, PA, US
| | - German Ott
- Department of Clinical Pathology, Robert-Bosch-Krankenhaus, and Dr. Margarete Fischer-Bosch Institute for Clinical Pharmacology, Stuttgart, Germany
| | - Wenbin Xiao
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, US
| | - Mariusz Wasik
- Department of Pathology, Fox Chase Cancer Center, Philadelphia, PA, US
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5
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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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6
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Oliva-Ariza G, Fuentes-Herrero B, Carbonell C, Lecrevisse Q, Pérez-Pons A, Torres-Valle A, Pozo J, Martín-Oterino JÁ, González-López Ó, López-Bernús A, Bernal-Ribes M, Belhassen-García M, Pérez-Escurza O, Pérez-Andrés M, Vazquez L, Hernández-Pérez G, García Palomo FJ, Leoz P, Costa-Alba P, Pérez-Losada E, Yeguas A, Santos Sánchez M, García-Blázquez M, Morán-Plata FJ, Damasceno D, Botafogo V, Muñoz-García N, Fluxa R, Contreras-Sanfeliciano T, Almeida J, Marcos M, Orfao A. High frequency of low-count monoclonal B-cell lymphocytosis in hospitalized COVID-19 patients. Blood 2023; 141:309-314. [PMID: 36399707 PMCID: PMC9906370 DOI: 10.1182/blood.2022017439] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 11/07/2022] [Accepted: 11/08/2022] [Indexed: 11/19/2022] Open
Affiliation(s)
- Guillermo Oliva-Ariza
- Translational and Clinical Research Program, Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Consejo Superior de Investigaciones Científicas (CSIC), and University of Salamanca (Universidad de Salamanca), Salamanca, Spain; Cytometry Service (NUCLEUS), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
| | - Blanca Fuentes-Herrero
- Translational and Clinical Research Program, Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Consejo Superior de Investigaciones Científicas (CSIC), and University of Salamanca (Universidad de Salamanca), Salamanca, Spain; Cytometry Service (NUCLEUS), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
| | - Cristina Carbonell
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Department of Internal Medicine, University Hospital of Salamanca, Salamanca, Spain
| | - Quentin Lecrevisse
- Translational and Clinical Research Program, Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Consejo Superior de Investigaciones Científicas (CSIC), and University of Salamanca (Universidad de Salamanca), Salamanca, Spain; Cytometry Service (NUCLEUS), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Department of Infectious Diseases, University Hospital of Salamanca, Centro de Investigación de Enfermedades Tropicales de la Universidad de Salamanca (CIETUS), Salamanca, Spain
| | - Alba Pérez-Pons
- Translational and Clinical Research Program, Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Consejo Superior de Investigaciones Científicas (CSIC), and University of Salamanca (Universidad de Salamanca), Salamanca, Spain; Cytometry Service (NUCLEUS), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
| | - Alba Torres-Valle
- Translational and Clinical Research Program, Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Consejo Superior de Investigaciones Científicas (CSIC), and University of Salamanca (Universidad de Salamanca), Salamanca, Spain; Cytometry Service (NUCLEUS), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
| | - Julio Pozo
- Translational and Clinical Research Program, Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Consejo Superior de Investigaciones Científicas (CSIC), and University of Salamanca (Universidad de Salamanca), Salamanca, Spain; Cytometry Service (NUCLEUS), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
| | - José Ángel Martín-Oterino
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Department of Internal Medicine, University Hospital of Salamanca, Salamanca, Spain
| | - Óscar González-López
- Translational and Clinical Research Program, Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Consejo Superior de Investigaciones Científicas (CSIC), and University of Salamanca (Universidad de Salamanca), Salamanca, Spain; Cytometry Service (NUCLEUS), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
| | - Amparo López-Bernús
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Department of Internal Medicine, University Hospital of Salamanca, Salamanca, Spain
- Department of Infectious Diseases, University Hospital of Salamanca, Centro de Investigación de Enfermedades Tropicales de la Universidad de Salamanca (CIETUS), Salamanca, Spain
| | - Marta Bernal-Ribes
- Translational and Clinical Research Program, Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Consejo Superior de Investigaciones Científicas (CSIC), and University of Salamanca (Universidad de Salamanca), Salamanca, Spain; Cytometry Service (NUCLEUS), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
| | - Moncef Belhassen-García
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Department of Internal Medicine, University Hospital of Salamanca, Salamanca, Spain
- Department of Infectious Diseases, University Hospital of Salamanca, Centro de Investigación de Enfermedades Tropicales de la Universidad de Salamanca (CIETUS), Salamanca, Spain
| | - Oihane Pérez-Escurza
- Translational and Clinical Research Program, Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Consejo Superior de Investigaciones Científicas (CSIC), and University of Salamanca (Universidad de Salamanca), Salamanca, Spain; Cytometry Service (NUCLEUS), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
| | - Martín Pérez-Andrés
- Translational and Clinical Research Program, Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Consejo Superior de Investigaciones Científicas (CSIC), and University of Salamanca (Universidad de Salamanca), Salamanca, Spain; Cytometry Service (NUCLEUS), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - Lourdes Vazquez
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Hematology, University Hospital of Salamanca, Salamanca, Spain
| | - Guillermo Hernández-Pérez
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Department of Internal Medicine, University Hospital of Salamanca, Salamanca, Spain
| | | | - Pilar Leoz
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Hematology, University Hospital of Salamanca, Salamanca, Spain
| | - Pilar Costa-Alba
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Emergency Department, University Hospital of Salamanca, Salamanca, Spain
| | - Elena Pérez-Losada
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Intensive Care department, University Hospital of Salamanca, Salamanca, Spain
| | - Ana Yeguas
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Hematology, University Hospital of Salamanca, Salamanca, Spain
| | - Miryam Santos Sánchez
- Translational and Clinical Research Program, Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Consejo Superior de Investigaciones Científicas (CSIC), and University of Salamanca (Universidad de Salamanca), Salamanca, Spain; Cytometry Service (NUCLEUS), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
| | | | - Francisco Javier Morán-Plata
- Translational and Clinical Research Program, Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Consejo Superior de Investigaciones Científicas (CSIC), and University of Salamanca (Universidad de Salamanca), Salamanca, Spain; Cytometry Service (NUCLEUS), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
| | - Daniela Damasceno
- Translational and Clinical Research Program, Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Consejo Superior de Investigaciones Científicas (CSIC), and University of Salamanca (Universidad de Salamanca), Salamanca, Spain; Cytometry Service (NUCLEUS), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - Vitor Botafogo
- Translational and Clinical Research Program, Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Consejo Superior de Investigaciones Científicas (CSIC), and University of Salamanca (Universidad de Salamanca), Salamanca, Spain; Cytometry Service (NUCLEUS), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
| | - Noemí Muñoz-García
- Translational and Clinical Research Program, Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Consejo Superior de Investigaciones Científicas (CSIC), and University of Salamanca (Universidad de Salamanca), Salamanca, Spain; Cytometry Service (NUCLEUS), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
| | | | | | - Julia Almeida
- Translational and Clinical Research Program, Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Consejo Superior de Investigaciones Científicas (CSIC), and University of Salamanca (Universidad de Salamanca), Salamanca, Spain; Cytometry Service (NUCLEUS), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - Miguel Marcos
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Department of Internal Medicine, University Hospital of Salamanca, Salamanca, Spain
| | - Alberto Orfao
- Translational and Clinical Research Program, Centro de Investigación del Cáncer and Instituto de Biología Molecular y Celular del Cáncer (IBMCC), Consejo Superior de Investigaciones Científicas (CSIC), and University of Salamanca (Universidad de Salamanca), Salamanca, Spain; Cytometry Service (NUCLEUS), Salamanca, Spain
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (Universidad de Salamanca), Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
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7
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Lymphoid clonal hematopoiesis: implications for malignancy, immunity, and treatment. Blood Cancer J 2023; 13:5. [PMID: 36599826 DOI: 10.1038/s41408-022-00773-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/07/2022] [Accepted: 12/12/2022] [Indexed: 01/05/2023] Open
Abstract
Clonal hematopoiesis (CH) is the age-related expansion of hematopoietic stem cell clones caused by the acquisition of somatic point mutations or mosaic chromosomal alterations (mCAs). Clonal hematopoiesis caused by somatic mutations has primarily been associated with increased risk of myeloid malignancies, while mCAs have been associated with increased risk of lymphoid malignancies. A recent study by Niroula et al. challenged this paradigm by finding a distinct subset of somatic mutations and mCAs that are associated with increased risk of lymphoid malignancy. CH driven by these mutations is termed lymphoid clonal hematopoiesis (L-CH). Unlike myeloid clonal hematopoiesis (M-CH), L-CH has the potential to originate at both stem cells and partially or fully differentiated progeny stages of maturation. In this review, we explore the definition of L-CH in the context of lymphocyte maturation and lymphoid malignancy precursor disorders, the evidence for L-CH in late-onset autoimmunity and immunodeficiency, and the development of therapy-related L-CH following chemotherapy or hematopoietic stem cell transplantation.
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8
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Sander B, Campo E, Hsi ED. Chronic lymphocytic leukaemia/small lymphocytic lymphoma and mantle cell lymphoma: from early lesions to transformation. Virchows Arch 2023; 482:131-145. [PMID: 36454275 PMCID: PMC9852142 DOI: 10.1007/s00428-022-03460-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 11/06/2022] [Accepted: 11/17/2022] [Indexed: 12/03/2022]
Abstract
The International Clinical Advisory Committee reviewed advances in our understanding of the clinicopathologic and biologic features of chronic lymphocytic leukaemia/small lymphocytic lymphoma, B-cell prolymphocytic leukaemia, and mantle cell lymphoma since the revised 4th edition of the WHO Classification of Tumours of the Haematopoietic and Lymphoid Tissues. Discussions amongst pathologists, clinicians, and molecular geneticists around these diseases focussed on incorporating new knowledge into the next classification system. In this manuscript, we review these disease entities and incorporate results of these deliberations, including advances in our understanding of early lesions and transformation.
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Affiliation(s)
- Birgitta Sander
- grid.24381.3c0000 0000 9241 5705Department of Laboratory Medicine, Division of Pathology, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Elias Campo
- grid.5841.80000 0004 1937 0247Laboratory of Pathology Hospital Clinic of Barcelona, University of Barcelona, Barcelona, Spain ,grid.10403.360000000091771775Institute of Biomedical Research August Pi I Sunyer (IDIBAPS), Barcelona, Spain
| | - Eric D. Hsi
- grid.241167.70000 0001 2185 3318Department of Pathology, Wake Forest University School of Medicine, Winston-Salem, NC USA
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9
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Criado I, Nieto WG, Oliva-Ariza G, Fuentes-Herrero B, Teodosio C, Lecrevisse Q, Lopez A, Romero A, Almeida J, Orfao A. Age- and Sex-Matched Normal Leukocyte Subset Ranges in the General Population Defined with the EuroFlow Lymphocyte Screening Tube (LST) for Monoclonal B-Cell Lymphocytosis (MBL) vs. Non-MBL Subjects. Cancers (Basel) 2022; 15:cancers15010058. [PMID: 36612056 PMCID: PMC9817826 DOI: 10.3390/cancers15010058] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/02/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022] Open
Abstract
Reference ranges of blood-circulating leukocyte populations by, e.g., age and sex, are required for monitoring immune-cell kinetics. Most previous reports in which flow cytometry has been used to define the reference ranges for leukocyte counts included a limited number of donors and/or cell populations and/or did not consider age and sex simultaneously. Moreover, other factors not previously considered in the definition of normal ranges, such as the presence of chronic-lymphocytic-leukemia (CLL)-like low-count monoclonal B-cell lymphocytosis (MBLlo), might also be associated with an altered distribution of leukocytes in blood in association with an immunodeficiency and increased risk of infection and cancer. Here, we established reference cell-count ranges for the major populations of leukocytes in blood of non-MBL and MBLlo adult Caucasians matched by age and sex using the EuroFlow Lymphocyte Screening Tube (LST). A total of 706 Caucasian adult donors—622 non-MBL and 84 MBLlo—were recruited from the general population. Among non-MBL donors, the total leukocyte, neutrophil, basophil dendritic cell and monocyte counts remained stable through adulthood, while the absolute numbers of T- and B-cell populations and plasma cells decreased with age. The number of eosinophils and NK-cell increased over time, with clear differences according to sex for certain age ranges. In MBLlo subjects, few differences in the absolute cell counts by age (vs. non-MBL) were observed, and MBLlo men and women showed similar trends to non-MBL subjects except for the B-cell count drop observed in >70 y-men, which was more pronounced in MBLlo vs. non-MBL controls. Building robust age- and sex-matched reference ranges for the most relevant immune-cell populations in the blood of non-MBL donors is essential to appropriately identify an altered immune status in different clinical settings and highlight the altered immune-cell profiles of MBLlo subjects.
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Affiliation(s)
- Ignacio Criado
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (IBMCC; CSIC–Universidad de Salamanca); Cytometry Service, NUCLEUS; Departamento de Medicina, Universidad de Salamanca (https://ror.org/02f40zc51) and Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Wendy G. Nieto
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (IBMCC; CSIC–Universidad de Salamanca); Cytometry Service, NUCLEUS; Departamento de Medicina, Universidad de Salamanca (https://ror.org/02f40zc51) and Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
| | - Guillermo Oliva-Ariza
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (IBMCC; CSIC–Universidad de Salamanca); Cytometry Service, NUCLEUS; Departamento de Medicina, Universidad de Salamanca (https://ror.org/02f40zc51) and Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
| | - Blanca Fuentes-Herrero
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (IBMCC; CSIC–Universidad de Salamanca); Cytometry Service, NUCLEUS; Departamento de Medicina, Universidad de Salamanca (https://ror.org/02f40zc51) and Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
| | - Cristina Teodosio
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (IBMCC; CSIC–Universidad de Salamanca); Cytometry Service, NUCLEUS; Departamento de Medicina, Universidad de Salamanca (https://ror.org/02f40zc51) and Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Quentin Lecrevisse
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (IBMCC; CSIC–Universidad de Salamanca); Cytometry Service, NUCLEUS; Departamento de Medicina, Universidad de Salamanca (https://ror.org/02f40zc51) and Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Antonio Lopez
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (IBMCC; CSIC–Universidad de Salamanca); Cytometry Service, NUCLEUS; Departamento de Medicina, Universidad de Salamanca (https://ror.org/02f40zc51) and Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
| | - Alfonso Romero
- Centro de Atención Primaria de Salud Miguel Armijo, Sanidad de Castilla y León (SACyL), 37007 Salamanca, Spain
| | - Julia Almeida
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (IBMCC; CSIC–Universidad de Salamanca); Cytometry Service, NUCLEUS; Departamento de Medicina, Universidad de Salamanca (https://ror.org/02f40zc51) and Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence: (J.A.); (A.O.); Tel.: +34-923-29-4811 (J.A.)
| | - Alberto Orfao
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (IBMCC; CSIC–Universidad de Salamanca); Cytometry Service, NUCLEUS; Departamento de Medicina, Universidad de Salamanca (https://ror.org/02f40zc51) and Institute of Biomedical Research of Salamanca (IBSAL), 37007 Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence: (J.A.); (A.O.); Tel.: +34-923-29-4811 (J.A.)
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10
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Multiple COVID-19 vaccine doses in CLL and MBL improve immune responses with progressive and high seroconversion. Blood 2022; 140:2709-2721. [PMID: 36206503 PMCID: PMC9550283 DOI: 10.1182/blood.2022017814] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 09/08/2022] [Accepted: 09/27/2022] [Indexed: 12/30/2022] Open
Abstract
Patients with chronic lymphocytic leukemia (CLL) or monoclonal B-lymphocytosis (MBL) have impaired response to COVID-19 vaccination. A total of 258 patients (215 with CLL and 43 with MBL) had antispike antibody levels evaluable for statistical analysis. The overall seroconversion rate in patients with CLL was 94.2% (antispike antibodies ≥50 AU/mL) and 100% in patients with MBL after multiple vaccine doses. After 3 doses (post-D3) in 167 patients with CLL, 73.7% were seropositive, 17.4% had antispike antibody levels between 50 and 999 AU/mL, and 56.3% had antispike antibody levels ≥1000 AU/mL, with a median rise from 144.6 to 1800.7 AU/mL. Of patients who were seronegative post-D2, 39.7% seroconverted post-D3. For those who then remained seronegative after their previous dose, seroconversion occurred in 40.6% post-D4, 46.2% post-D5, 16.7% post-D6, and 0% after D7 or D8. After seroconversion, most had a progressive increase in antispike antibody levels. Neutralization was associated with higher antispike antibody levels, more vaccine doses, and earlier severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants; neutralizing antibody against early clade D614G was detected in 65.3%, against Delta in 52.0%, and against Omicron in 36.5%. SARS-CoV-2-specific T-cell production of interferon γ and interleukin 2 occurred in 73.9% and 60.9%, respectively, of 23 patients tested. After multiple vaccine doses, by multivariate analysis, immunoglobulin M ≥0.53 g/L, immunoglobulin subclass G3 ≥0.22 g/L and absence of current CLL therapy were independent predictors of positive serological responses. Multiple sequential COVID-19 vaccination significantly increased seroconversion and antispike antibody levels in patients with CLL or MBL.
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11
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Tang C, Shen Y, Soosapilla A, Mulligan SP. Monoclonal B-cell Lymphocytosis - a review of diagnostic criteria, biology, natural history, and clinical management. Leuk Lymphoma 2022; 63:2795-2806. [PMID: 35767361 DOI: 10.1080/10428194.2022.2092857] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Since first described almost two decades ago, there has been significant evolution in our definition and understanding of the biology and implications of monoclonal B-cell lymphocytosis (MBL). This review provides an overview of the definition, classification, biology, and natural history of MBL, mainly focused on the dominant CLL-like phenotype form of MBL. The increasingly recognized implications of MBL with respect to immune dysfunction are discussed, particularly in view of the COVID-19 pandemic, along with management recommendations for MBL in the clinic.
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Affiliation(s)
- Catherine Tang
- Department of Haematology and Flow Cytometry, Laverty Pathology, Sydney, Australia.,Department of Haematology, Gosford Hospital, Gosford, Australia.,School of Medicine and Public Health, The University of Newcastle, Newcastle, Australia
| | - Yandong Shen
- Department of Haematology, Royal North Shore Hospital, St Leonards, Sydney, Australia.,Kolling Institute, University of Sydney, St Leonards, Sydney, Australia
| | - Asha Soosapilla
- Department of Haematology and Flow Cytometry, Laverty Pathology, Sydney, Australia
| | - Stephen P Mulligan
- Department of Haematology and Flow Cytometry, Laverty Pathology, Sydney, Australia.,Department of Haematology, Royal North Shore Hospital, St Leonards, Sydney, Australia.,Kolling Institute, University of Sydney, St Leonards, Sydney, Australia
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12
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Maccio U, Rets AV. Lymphoid aggregates in bone marrow: a diagnostic pitfall. J Clin Pathol 2022; 75:807-814. [PMID: 36150886 DOI: 10.1136/jclinpath-2022-208174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 05/09/2022] [Indexed: 11/03/2022]
Abstract
Lymphoid aggregates in bone marrow specimens are a relatively frequent finding that may pose a diagnostic challenge for a pathologist. The distinction between reactive and neoplastic aggregates has significant clinical relevance. Although many testing modalities such as immunohistochemistry, flow cytometry and molecular studies are currently available in clinical laboratories, the appropriate utilisation of these modalities and the awareness of their potential pitfalls are important. When a neoplastic process is ruled out, the significance of benign lymphoid aggregates in bone marrow is often unclear, as they may be associated with a broad spectrum of conditions including infections, autoimmune disorders, medications, or may even be idiopathic.This review focuses on evidence-based criteria that can aid in making the distinction between benign and malignant lymphoid aggregates and discusses the advantages, disadvantages and limits of ancillary tests used for this purpose. Finally, the most common aetiologies of benign lymphoid aggregates and their associations with specific diseases are discussed.
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Affiliation(s)
- Umberto Maccio
- Pathology, University Hospital Zurich, Zürich, Switzerland
| | - Anton V Rets
- Hematopathology, ARUP Laboratories, Salt Lake City, Utah, USA .,Pathology, University of Utah School of Medicine, Salt Lake City, Utah, USA
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13
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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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14
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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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15
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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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16
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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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17
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Bolli N, Martinelli G, Cerchione C. The molecular pathogenesis of multiple myeloma. Hematol Rep 2020; 12:9054. [PMID: 33408844 PMCID: PMC7772755 DOI: 10.4081/hr.2020.9054] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 11/29/2022] Open
Abstract
Multiple Myeloma (MM) is characterized by uncontrolled proliferation and accumulation of clonal plasma cells within the bone marrow. However, the cell of origin is a B-lymphocyte acquiring aberrant genomic events in the germinal center of a lymph node as off-target events during somatichypermutation and class-switch recombination driven by activation-induced-deaminase. Whether pre-germinal center events are also required for transformation, and which additional events are required for disease progression is still matter of debate. As early treatment in asymptomatic phases is gaining traction in the clinic, a better understanding of the molecular pathogenesis of myeloma progression would allow stratification of patients based on their risk of progression, thus rationalizing efficacy and cost of clinical interventions. In this review, we will discuss the development of MM, from the cell of origin through asymptomatic stages such as monoclonal gammopathy of undetermined significance and smoldering MM, to the development of symptomatic disease. We will explain the genetic heterogeneity of MM, one of the major drivers of disease recurrence. In this context, moreover, we will propose how this knowledge may influence future diagnostic and therapeutic interventions.
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Affiliation(s)
- Niccolò Bolli
- Department of Oncology and Hemato- Oncology, University of Milan, Italy
- Hematology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Giovanni Martinelli
- Hematology Unit, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Claudio Cerchione
- Hematology Unit, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
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18
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Da Vià MC, Ziccheddu B, Maeda A, Bagnoli F, Perrone G, Bolli N. A Journey Through Myeloma Evolution: From the Normal Plasma Cell to Disease Complexity. Hemasphere 2020; 4:e502. [PMID: 33283171 PMCID: PMC7710229 DOI: 10.1097/hs9.0000000000000502] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 10/19/2020] [Indexed: 02/06/2023] Open
Abstract
The knowledge of cancer origin and the subsequent tracking of disease evolution represent unmet needs that will soon be within clinical reach. This will provide the opportunity to improve patient's stratification and to personalize treatments based on cancer biology along its life history. In this review, we focus on the molecular pathogenesis of multiple myeloma (MM), a hematologic malignancy with a well-known multi-stage disease course, where such approach can sooner translate into a clinical benefit. We describe novel insights into modes and timing of disease initiation. We dissect the biology of the preclinical and pre-malignant phases, elucidating how knowledge of the genomics of the disease and the composition of the microenvironment allow stratification of patients based on risk of disease progression. Then, we explore cell-intrinsic and cell-extrinsic drivers of MM evolution to symptomatic disease. Finally, we discuss how this may relate to the development of refractory disease after treatment. By integrating an evolutionary view of myeloma biology with the recent acquisitions on its clonal heterogeneity, we envision a way to drive the clinical management of the disease based on its detailed biological features more than surrogates of disease burden.
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Affiliation(s)
- Matteo C. Da Vià
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Bachisio Ziccheddu
- Department of Molecular Biotechnologies and Health Sciences, University of Turin, Turin, Italy
| | - Akihiro Maeda
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
| | - Filippo Bagnoli
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
- Department of Clinical Oncology and Hematology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Giulia Perrone
- Department of Clinical Oncology and Hematology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Niccolò Bolli
- Department of Oncology and Hemato-Oncology, University of Milan, Milan, Italy
- Department of Clinical Oncology and Hematology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
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19
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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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20
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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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21
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Nardi V, Kuo FC, Hasserjian RP. Premalignant Clonal Hematopoietic Proliferations. Am J Clin Pathol 2019; 152:347-358. [PMID: 31305863 DOI: 10.1093/ajcp/aqz079] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
OBJECTIVES The 2017 Workshop of the Society for Hematopathology/European Association for Hematopathology aimed to review premalignant clonal hematopoietic proliferations. METHODS The workshop panel reviewed 27 cases of clonal proliferations of indeterminate significance or potential (18 myeloid, nine lymphoid) and rendered consensus diagnoses. RESULTS Immunophenotyping and genetic studies on peripheral blood, bone marrow, and lymph node samples have led to the incidental detection of small clonal populations in asymptomatic individuals. These premalignant clonal myeloid and lymphoid proliferations include monoclonal gammopathy of uncertain significance, monoclonal B-cell lymphocytosis, in situ follicular neoplasia, in situ mantle cell neoplasia, clonal hematopoiesis of indeterminate potential, and clonal cytopenia of undetermined significance. CONCLUSIONS Current diagnostic criteria for the diagnoses of premalignant clonal hematopoietic proliferations are reviewed and discussed in the context of the cases presented at the workshop.
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Affiliation(s)
- Valentina Nardi
- Department of Pathology, Massachusetts General Hospital, Boston
- Harvard Medical School, Boston, MA
| | - Frank C Kuo
- Department of Pathology and Laboratory Medicine, University of California Los Angeles
| | - Robert P Hasserjian
- Department of Pathology, Massachusetts General Hospital, Boston
- Harvard Medical School, Boston, MA
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22
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Hanna KS. Updates in the management of chronic lymphocytic leukemia/small lymphocytic leukemia. J Oncol Pharm Pract 2019; 26:146-155. [PMID: 31189420 DOI: 10.1177/1078155219853030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Chronic lymphocytic leukemia is one of the most common lymphoid malignancies. Often treatment modalities are tailored to individual patients based on age, presence of comorbidities and cytogenetics. The advent of ibrutinib has significantly changed the management of the disease in all patient groups and has had the largest impact on clinical practice to date. Over the last 15 years, a series of trials have established that chemoimmunotherapy improves both progression-free survival and overall survival compared to chemotherapy alone. Despite its proven role, efficacy of ibrutinib has not been well established in young, fit patients and in comparison with standard care and as combination therapy with other agents such as venetoclax. New data have strengthened the role of ibrutinib in the front-line setting and establish its place in therapy. In addition, combination therapies are geared to achieve negative minimal residual disease and allow patients to potentially be off of therapy. The management of this leukemia has extensively changed over the past years, and this review article will aim to highlight key trials that have changed practice and led to guideline updates. It is not unlikely that treatment modalities will continue to improve in light of new data.
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Affiliation(s)
- Kirollos S Hanna
- Mayo Clinic College of Medicine, Mayo Clinic & University of Minnesota Medical Center, Rochester, MN, USA
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23
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Glenn MJ, Madsen MJ, Davis E, Garner CD, Curtin K, Jones B, Williams JA, Tomasson MH, Camp NJ. Elevated IgM and abnormal free light chain ratio are increased in relatives from high-risk chronic lymphocytic leukemia pedigrees. Blood Cancer J 2019; 9:25. [PMID: 30808891 PMCID: PMC6391432 DOI: 10.1038/s41408-019-0186-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 01/04/2019] [Accepted: 01/30/2019] [Indexed: 02/07/2023] Open
Abstract
Abnormal serum immunoglobulin (Ig) free light chains (FLC) are established biomarkers of early disease in multiple B-cell lymphoid malignancies, including chronic lymphocytic leukemia (CLL). Heavy chains have also been shown to be biomarkers in plasma cell disorders. An unanswered question is whether these Ig biomarkers are heritable, i.e., influenced by germline factors. CLL is heritable but highly heterogeneous. Heritable biomarkers could elucidate steps of disease pathogenesis that are affected by germline factors, and may help partition heterogeneity and identify genetic pleiotropies across malignancies. Relatives in CLL pedigrees present an opportunity to identify heritable biomarkers. We compared FLCs and heavy chains between relatives in 23 high-risk CLL pedigrees and population controls. Elevated IgM (eIgM) and abnormal FLC (aFLC) ratio was significantly increased in relatives, suggesting that these Ig biomarkers are heritable and could offer risk stratification in pedigree relatives. Within high-risk CLL pedigrees, B-cell lymphoid malignancies were five times more prevalent in close relatives of individuals with eIgM, prostate cancer was three times more prevalent in relatives of individuals with aFLC, and monoclonal B-cell lymphocytosis increased surrounding individuals with normal Ig levels. These different clustering patterns suggest Ig biomarkers have the potential to partition genetic heterogeneity in CLL and provide insight into distinct heritable pleiotropies associated with CLL.
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Affiliation(s)
- Martha J Glenn
- University of Utah School of Medicine, Salt Lake City, UT, 84112, USA
| | - Michael J Madsen
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, 84112, USA
| | - Ethan Davis
- University of Utah School of Medicine, Salt Lake City, UT, 84112, USA
| | | | - Karen Curtin
- University of Utah School of Medicine, Salt Lake City, UT, 84112, USA
| | - Brandt Jones
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, 84112, USA
| | - Justin A Williams
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, 84112, USA
| | - Michael H Tomasson
- Carver College of Medicine, University ofIowa, Iowa City, IA, 52242, USA
| | - Nicola J Camp
- University of Utah School of Medicine, Salt Lake City, UT, 84112, USA. .,Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, 84112, USA.
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24
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Abstract
Multiparametric flow cytometry is a powerful diagnostic tool that permits rapid assessment of cellular antigen expression to quickly provide immunophenotypic information suitable for disease classification. This chapter describes a general approach for the identification of abnormal lymphoid populations by flow cytometry, including B, T, NK, and Hodgkin lymphoma cells suitable for the clinical and research environment. Knowledge of the common patterns of antigen expression of normal lymphoid cells is critical to permit identification of abnormal populations at disease presentation and for minimal residual disease assessment. We highlight an overview of procedures for processing and immunophenotyping non-Hodgkin B- and T-cell lymphomas and also describe our strategy for the sensitive and specific diagnosis of classical Hodgkin lymphoma and nodular lymphocyte predominant Hodgkin lymphoma.
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Affiliation(s)
- Emily Glynn
- Department of Laboratory Medicine, University of Washington, Seattle, WA, USA
| | - Lori Soma
- Department of Laboratory Medicine, University of Washington, Seattle, WA, USA
| | - David Wu
- Department of Laboratory Medicine, University of Washington, Seattle, WA, USA
| | - Brent L Wood
- Department of Laboratory Medicine, University of Washington, Seattle, WA, USA
| | - Jonathan R Fromm
- Department of Laboratory Medicine, University of Washington Medical Center, Seattle, WA, USA.
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25
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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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26
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Popp HD, Flach J, Brendel S, Ruppenthal S, Kleiner H, Seifarth W, Schneider S, Schulze TJ, Weiss C, Wenz F, Hofmann WK, Fabarius A. Accumulation of DNA damage and alteration of the DNA damage response in monoclonal B-cell lymphocytosis and chronic lymphocytic leukemia. Leuk Lymphoma 2018; 60:795-804. [DOI: 10.1080/10428194.2018.1498494] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Henning D. Popp
- Department of Hematology and Oncology, Heidelberg University, Mannheim, Germany
| | - Johanna Flach
- Department of Hematology and Oncology, Heidelberg University, Mannheim, Germany
| | - Susanne Brendel
- Department of Hematology and Oncology, Heidelberg University, Mannheim, Germany
| | - Sabrina Ruppenthal
- Department of Hematology and Oncology, Heidelberg University, Mannheim, Germany
| | - Helga Kleiner
- Department of Hematology and Oncology, Heidelberg University, Mannheim, Germany
| | - Wolfgang Seifarth
- Department of Hematology and Oncology, Heidelberg University, Mannheim, Germany
| | - Sven Schneider
- Institute for Clinical Chemistry, Heidelberg University, Mannheim, Germany
| | - Torsten J. Schulze
- Institute of Transfusion Medicine and Immunology, Heidelberg University, German Red-Cross Blood Service Baden-Württemberg – Hessen, Mannheim, Germany
| | - Christel Weiss
- Department of Medical Statistics and Biomathematics, Heidelberg University, Mannheim, Germany
| | - Frederik Wenz
- Department of Radiation Oncology, Heidelberg University, Mannheim, Germany
| | | | - Alice Fabarius
- Department of Hematology and Oncology, Heidelberg University, Mannheim, Germany
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27
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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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28
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Kleinstern G, Camp NJ, Goldin LR, Vachon CM, Vajdic CM, de Sanjose S, Weinberg JB, Benavente Y, Casabonne D, Liebow M, Nieters A, Hjalgrim H, Melbye M, Glimelius B, Adami HO, Boffetta P, Brennan P, Maynadie M, McKay J, Cocco PL, Shanafelt TD, Call TG, Norman AD, Hanson C, Robinson D, Chaffee KG, Brooks-Wilson AR, Monnereau A, Clavel J, Glenn M, Curtin K, Conde L, Bracci PM, Morton LM, Cozen W, Severson RK, Chanock SJ, Spinelli JJ, Johnston JB, Rothman N, Skibola CF, Leis JF, Kay NE, Smedby KE, Berndt SI, Cerhan JR, Caporaso N, Slager SL. Association of polygenic risk score with the risk of chronic lymphocytic leukemia and monoclonal B-cell lymphocytosis. Blood 2018; 131:2541-2551. [PMID: 29674426 PMCID: PMC5992865 DOI: 10.1182/blood-2017-11-814608] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 03/23/2018] [Indexed: 01/07/2023] Open
Abstract
Inherited loci have been found to be associated with risk of chronic lymphocytic leukemia (CLL). A combined polygenic risk score (PRS) of representative single nucleotide polymorphisms (SNPs) from these loci may improve risk prediction over individual SNPs. Herein, we evaluated the association of a PRS with CLL risk and its precursor, monoclonal B-cell lymphocytosis (MBL). We assessed its validity and discriminative ability in an independent sample and evaluated effect modification and confounding by family history (FH) of hematological cancers. For discovery, we pooled genotype data on 41 representative SNPs from 1499 CLL and 2459 controls from the InterLymph Consortium. For validation, we used data from 1267 controls from Mayo Clinic and 201 CLL, 95 MBL, and 144 controls with a FH of CLL from the Genetic Epidemiology of CLL Consortium. We used odds ratios (ORs) to estimate disease associations with PRS and c-statistics to assess discriminatory accuracy. In InterLymph, the continuous PRS was strongly associated with CLL risk (OR, 2.49; P = 4.4 × 10-94). We replicated these findings in the Genetic Epidemiology of CLL Consortium and Mayo controls (OR, 3.02; P = 7.8 × 10-30) and observed high discrimination (c-statistic = 0.78). When jointly modeled with FH, PRS retained its significance, along with FH status. Finally, we found a highly significant association of the continuous PRS with MBL risk (OR, 2.81; P = 9.8 × 10-16). In conclusion, our validated PRS was strongly associated with CLL risk, adding information beyond FH. The PRS provides a means of identifying those individuals at greater risk for CLL as well as those at increased risk of MBL, a condition that has potential clinical impact beyond CLL.
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Affiliation(s)
| | - Nicola J Camp
- Huntsman Cancer Institute and Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT
| | - Lynn R Goldin
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
| | - Celine M Vachon
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN
| | - Claire M Vajdic
- Centre for Big Data Research in Health, University of New South Wales, Sydney, NSW, Australia
| | - Silvia de Sanjose
- CIBER de Epidemiología y Salud Pública, Barcelona, Spain
- Cancer Epidemiology Research Programme, Catalan Institute of Oncology, Institute d'Investigacio Biomedica de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
| | - J Brice Weinberg
- Department of Medicine and
- Department of Immunology, Duke University Medical Center, Durham, NC
- Durham Veterans Affairs Medical Center, Durham, NC
| | - Yolanda Benavente
- CIBER de Epidemiología y Salud Pública, Barcelona, Spain
- Cancer Epidemiology Research Programme, Catalan Institute of Oncology, Institute d'Investigacio Biomedica de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Delphine Casabonne
- CIBER de Epidemiología y Salud Pública, Barcelona, Spain
- Cancer Epidemiology Research Programme, Catalan Institute of Oncology, Institute d'Investigacio Biomedica de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Mark Liebow
- Division of General Internal Medicine, Mayo Clinic, Rochester, MN
| | - Alexandra Nieters
- Center for Chronic Immunodeficiency, University Medical Center Freiburg, Freiburg, Baden-Württemberg, Germany
| | - Henrik Hjalgrim
- Department of Epidemiology Research, Division of Health Surveillance and Research, Statens Serum Institut, Copenhagen, Denmark
- Department of Hematology, Rigshospitalet, Copenhagen, Denmark
| | - Mads Melbye
- Department of Epidemiology Research, Division of Health Surveillance and Research, Statens Serum Institut, Copenhagen, Denmark
- Department of Medicine, Stanford University School of Medicine, Stanford, CA
| | - Bengt Glimelius
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Hans-Olov Adami
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Paolo Boffetta
- The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Paul Brennan
- International Agency for Research on Cancer, Lyon, France
| | - Marc Maynadie
- Registre des Hémopathies Malignes de Côte d'Or, INSERM UMR1231, Université de Bourgogne-Franche-Comté, Dijon, France
| | - James McKay
- International Agency for Research on Cancer, Lyon, France
| | - Pier Luigi Cocco
- Department of Medical Sciences and Public Health, Occupational Health Section, University of Cagliari, Monserrato, Italy
| | | | | | - Aaron D Norman
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN
| | - Curtis Hanson
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Dennis Robinson
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN
| | - Kari G Chaffee
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN
| | - Angela R Brooks-Wilson
- Genome Sciences Centre, BC Cancer Agency, Vancouver, BC, Canada
- Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, BC, Canada
| | - Alain Monnereau
- Registre des Hémopathies Malignes de la Gironde, Institut Bergonié, University of Bordeaux, INSERM, Team EPICENE, UMR 1219, Bordeaux, France
- Epidemiology of Childhood and Adolescent Cancers Group, INSERM, Center of Research in Epidemiology and Statistics Sorbonne Paris Cité, Paris, France
- Université Paris Descartes, Paris, France
| | - Jacqueline Clavel
- Epidemiology of Childhood and Adolescent Cancers Group, INSERM, Center of Research in Epidemiology and Statistics Sorbonne Paris Cité, Paris, France
- Université Paris Descartes, Paris, France
| | - Martha Glenn
- Huntsman Cancer Institute and Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT
| | - Karen Curtin
- Huntsman Cancer Institute and Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT
| | - Lucia Conde
- UCL Cancer Institute, London, United Kingdom
| | - Paige M Bracci
- Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, CA
| | - Lindsay M Morton
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
| | - Wendy Cozen
- Department of Preventive Medicine and
- Norris Comprehensive Cancer Center, USC Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Richard K Severson
- Department of Family Medicine and Public Health Sciences, Wayne State University, Detroit, MI
| | - Stephen J Chanock
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
| | - John J Spinelli
- Cancer Control Research, BC Cancer Agency, Vancouver, BC, Canada
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
| | - James B Johnston
- Department of Medical Oncology, Cancer Care Manitoba, Winnipeg, MB, Canada
| | - Nathaniel Rothman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
| | - Christine F Skibola
- Department of Hematology and Medical Oncology, Emory University School of Medicine, Atlanta, GA
| | - Jose F Leis
- Department of Hematology and Oncology, Mayo Clinic, Phoenix, AZ; and
| | - Neil E Kay
- Department of Medical Sciences and Public Health, Occupational Health Section, University of Cagliari, Monserrato, Italy
| | - Karin E Smedby
- Department of Medicine, Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Sonja I Berndt
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
| | - James R Cerhan
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN
| | - Neil Caporaso
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
| | - Susan L Slager
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN
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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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Russo M, Milito A, Spagnuolo C, Carbone V, Rosén A, Minasi P, Lauria F, Russo GL. CK2 and PI3K are direct molecular targets of quercetin in chronic lymphocytic leukaemia. Oncotarget 2018; 8:42571-42587. [PMID: 28489572 PMCID: PMC5522089 DOI: 10.18632/oncotarget.17246] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 04/05/2017] [Indexed: 11/25/2022] Open
Abstract
Despite the encouraging results of the innovative therapeutic treatments, complete remission is uncommon in patients affected by chronic lymphocytic leukaemia, which remains an essentially incurable disease. Recently, clinical trials based on BH3-mimetic drugs showed positive outcomes in subjects with poor prognostic features. However, resistance to treatments occurs in a significant number of patients. We previously reported that the multi-kinase inhibitor quercetin, a natural flavonol, restores sensitivity to ABT-737, a BH3-mimetic compound, in both leukemic cell lines and B-cells isolated from patients. To identify the molecular target of quercetin, we employed a new cell line, HG3, obtained by immortalization of B-cells from a chronic lymphocytic leukaemia patient at the later stage of disease. We confirmed that quercetin in association with ABT-737 synergistically enhances apoptosis in HG3 (combination index < 1 for all fractions affected). We also reported that the cellular uptake of quercetin is extremely rapid, with an intracellular concentration of about 38.5 ng/106 cells, after treatment with 25 μM for 5 min. We demonstrated that the activity of protein kinase CK2, which positively triggers PI3K/Akt pathway by inactivating PTEN phosphatase, is inhibited by quercetin immediately after its addition to HG3 cells (0–2 min). PI3K activity was also inhibited by quercetin within 60 min from the treatment. The combined inhibition of CK2 and PI3K kinase activities by quercetin restored ABT-737 sensitivity and increased lethality in human leukemia cells.
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Affiliation(s)
- Maria Russo
- Institute of Food Sciences, National Research Council, Avellino, Italy
| | - Alfonsina Milito
- Institute of Food Sciences, National Research Council, Avellino, Italy.,Current address: Stazione Zoologica "Anton Dohrn", Villa Comunale, Napoli, Italy
| | - Carmela Spagnuolo
- Institute of Food Sciences, National Research Council, Avellino, Italy
| | - Virginia Carbone
- Institute of Food Sciences, National Research Council, Avellino, Italy
| | - Anders Rosén
- Department of Clinical and Experimental Medicine, Division of Cell Biology, Linköping University, Linköping, Sweden
| | - Paola Minasi
- Institute of Food Sciences, National Research Council, Avellino, Italy
| | - Fabio Lauria
- Institute of Food Sciences, National Research Council, Avellino, Italy
| | - Gian Luigi Russo
- Institute of Food Sciences, National Research Council, Avellino, Italy
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31
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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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Ye H, Desai A, Zeng D, Nomie K, Romaguera J, Ahmed M, Wang ML. Smoldering mantle cell lymphoma. J Exp Clin Cancer Res 2017; 36:185. [PMID: 29246179 PMCID: PMC5732450 DOI: 10.1186/s13046-017-0652-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 11/24/2017] [Indexed: 11/25/2022] Open
Abstract
Background Mantle cell lymphoma (MCL) is an aggressive disease, with poor prognosis and a limited survival. However, some patients with indolent MCL can survive beyond 7~10 years. These patients remain largely asymptomatic and can be in observation for a long time without any treatment. The process of “wait and watch” leaves these patients with the potential risk of evolution to classic, aggressive MCL. On the other hand, early treatment for these patients may not impact overall survival but rather affects the quality of life. Therefore, it is essential to clearly identify this type of indolent MCL at the time of diagnosis. Results Reported findings of indolent presentation of MCL include: lack of B symptoms, normal serum lactic dehydrogenase (LDH) and β2-microglobulin levels (β2M), low MCL-International Prognostic Index (MIPI) score, maximum tumor diameter less than 3 cm, spleen size < 20 cm, positron emission tomography/computerized tomography with the Standard Uptake Value max <6, Ki-67 less than 30%, with some particular immunophenotype, such as CD5 and CD38 negative, markedly increased CD23 positive lymphocytes proportions, high expression of CD200, kappa light chain restriction, without C-myc, TP53 and NOTCH1/2 mutations, non-blastoid/pleomorphic histology, and no tumor growth on reevaluation every 2~3 months (followed for at least 6 months). Imaging evaluation may only be performed in the presence of disease-related symptoms or organ involvement. Meanwhile, if novel nodal or extranodal lesion is found, biopsy is mandatory to exclude lymphoma. Common clinopathological forms of indolent presentations include monoclonal B lymphocytosis with t (11; 14); “indolent leukemic” presentation of MCL with involvement of peripheral blood, bone marrow involvement, splenomegaly, and minimal lymphadenopathies and in situ lymphoma (often found in lymph nodes removed for other reasons, and in gastrointestinal biopsies). Conclusions Considering these distinct indolent clinical presentations with particular features in cytology and gene mutational status, we propose to include these MCL clinical presentations under the umbrella of “Smoldering Mantle Cell Lymphoma”.
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Affiliation(s)
- Haige Ye
- Department of Hematology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA
| | - Aakash Desai
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA.,University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Dongfeng Zeng
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA
| | - Krystle Nomie
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA
| | - Jorge Romaguera
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA
| | - Makhdum Ahmed
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA.
| | - Michael L Wang
- Department of Lymphoma/Myeloma, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX, 77030, USA.
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Furtado FM, Scheucher PS, Santana BA, Zanette DL, Calado RDT, Rego EM, Matos DM, Falcão RP. Comparison of microRNA expression in high-count monoclonal B-cell lymphocytosis and Binet A chronic lymphocytic leukemia. Rev Bras Hematol Hemoter 2017; 39:237-243. [PMID: 28830603 PMCID: PMC5568587 DOI: 10.1016/j.bjhh.2017.03.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 02/24/2017] [Accepted: 03/24/2017] [Indexed: 11/05/2022] Open
Abstract
Background Evidence suggests that monoclonal B-cell lymphocytosis precedes all chronic lymphocytic leukemia cases, although the molecular mechanisms responsible for disease progression are not understood. Aberrant miRNA expression may contribute to the pathogenesis of chronic lymphocytic leukemia. The objective of this study was to compare miRNA expression profiles of patients with Binet A chronic lymphocytic leukemia with those of subjects with high-count monoclonal B-cell lymphocytosis and healthy volunteers (controls). Methods Twenty-one chronic lymphocytic leukemia patients, 12 subjects with monoclonal B-cell lymphocytosis and ten healthy volunteers were enrolled in this study. Flow cytometry CD19+CD5+-based cell sorting was performed for the chronic lymphocytic leukemia and monoclonal B-cell lymphocytosis groups and CD19+ cells were sorted to analyze the control group. The expressions of miRNAs (miR-15a, miR-16-1, miR-29b, miR-34a, miR-181a, miR-181b and miR-155) were determined by quantitative reverse transcriptase polymerase chain reaction (qRT-PCR). Results Significant differences between the expressions in the chronic lymphocytic leukemia and monoclonal B-cell lymphocytosis groups were restricted to the expression of miR-155, which was higher in the former group. A comparison between healthy controls and monoclonal B-cell lymphocytosis/chronic lymphocytic leukemia patients revealed higher miR-155 and miR-34a levels and lower miR-15a, miR-16-1, miR-181a and miR-181b in the latter group. Conclusions Our results show a progressive increase of miR-155 expression from controls to monoclonal B-cell lymphocytosis to chronic lymphocytic leukemia. The role of miR-155 in the development of overt chronic lymphocytic leukemia in individuals with monoclonal B-cell lymphocytosis must be further analyzed.
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35
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Xochelli A, Oscier D, Stamatopoulos K. Clonal B-cell lymphocytosis of marginal zone origin. Best Pract Res Clin Haematol 2017; 30:77-83. [DOI: 10.1016/j.beha.2016.08.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 08/10/2016] [Accepted: 08/12/2016] [Indexed: 12/25/2022]
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36
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McCarthy BA, Yancopoulos S, Tipping M, Yan XJ, Wang XP, Bennett F, Li W, Lesser M, Paul S, Boyle E, Moreno C, Catera R, Messmer BT, Cutrona G, Ferrarini M, Kolitz JE, Allen SL, Rai KR, Rawstron AC, Chiorazzi N. A seven-gene expression panel distinguishing clonal expansions of pre-leukemic and chronic lymphocytic leukemia B cells from normal B lymphocytes. Immunol Res 2016; 63:90-100. [PMID: 26318878 DOI: 10.1007/s12026-015-8688-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Chronic lymphocytic leukemia (CLL) is a clonal disease of B lymphocytes manifesting as an absolute lymphocytosis in the blood. However, not all lymphocytoses are leukemic. In addition, first-degree relatives of CLL patients have an ~15 % chance of developing a precursor condition to CLL termed monoclonal B cell lymphocytosis (MBL), and distinguishing CLL and MBL B lymphocytes from normal B cell expansions can be a challenge. Therefore, we selected FMOD, CKAP4, PIK3C2B, LEF1, PFTK1, BCL-2, and GPM6a from a set of genes significantly differentially expressed in microarray analyses that compared CLL cells with normal B lymphocytes and used these to determine whether we could discriminate CLL and MBL cells from B cells of healthy controls. Analysis with receiver operating characteristics and Bayesian relevance determination demonstrated good concordance with all panel genes. Using a random forest classifier, the seven-gene panel reliably distinguished normal polyclonal B cell populations from expression patterns occurring in pre-CLL and CLL B cell populations with an error rate of 2 %. Using Bayesian learning, the expression levels of only two genes, FMOD and PIK3C2B, correctly distinguished 100 % of CLL and MBL cases from normal polyclonal and mono/oligoclonal B lymphocytes. Thus, this study sets forth effective computational approaches that distinguish MBL/CLL from normal B lymphocytes. The findings also support the concept that MBL is a CLL precursor.
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Affiliation(s)
- Brian A McCarthy
- The Feinstein Institute for Medical Research, Manhasset, NY, 11030, USA
| | | | | | - Xiao-Jie Yan
- The Feinstein Institute for Medical Research, Manhasset, NY, 11030, USA
| | - Xue Ping Wang
- The Feinstein Institute for Medical Research, Manhasset, NY, 11030, USA
| | - Fiona Bennett
- Haematological Malignancy Diagnostic Service, Leeds Teaching Hospitals, Leeds, LS2 9JT, UK
| | - Wentian Li
- The Feinstein Institute for Medical Research, Manhasset, NY, 11030, USA
| | - Martin Lesser
- The Feinstein Institute for Medical Research, Manhasset, NY, 11030, USA
| | - Santanu Paul
- The Feinstein Institute for Medical Research, Manhasset, NY, 11030, USA
| | - Erin Boyle
- The Feinstein Institute for Medical Research, Manhasset, NY, 11030, USA
| | - Carolina Moreno
- The Feinstein Institute for Medical Research, Manhasset, NY, 11030, USA
| | - Rosa Catera
- The Feinstein Institute for Medical Research, Manhasset, NY, 11030, USA
| | - Bradley T Messmer
- Moores Cancer Center, University of California, San Diego, San Diego, CA, 92093, USA
| | - Giovanna Cutrona
- U.O. Molecular Pathology, IRCCS Azienda Ospedaliera Universitaria San Martino - Istituto Nazionale per la Ricerca sul Cancro, Genoa, Italy
| | - Manlio Ferrarini
- IRCCS Azienda Ospedaliera Universitaria San Martino - Istituto Nazionale per la Ricerca sul Cancro, Genoa, Italy
| | - Jonathan E Kolitz
- The Feinstein Institute for Medical Research, Manhasset, NY, 11030, USA.,Departments of Molecular Medicine and Medicine, Hofstra North Shore-LIJ School of Medicine, Hempstead, NY, 11549-1000, USA
| | - Steven L Allen
- The Feinstein Institute for Medical Research, Manhasset, NY, 11030, USA.,Departments of Molecular Medicine and Medicine, Hofstra North Shore-LIJ School of Medicine, Hempstead, NY, 11549-1000, USA
| | - Kanti R Rai
- The Feinstein Institute for Medical Research, Manhasset, NY, 11030, USA.,Departments of Molecular Medicine and Medicine, Hofstra North Shore-LIJ School of Medicine, Hempstead, NY, 11549-1000, USA
| | - Andrew C Rawstron
- Haematological Malignancy Diagnostic Service, Leeds Teaching Hospitals, Leeds, LS2 9JT, UK
| | - Nicholas Chiorazzi
- The Feinstein Institute for Medical Research, Manhasset, NY, 11030, USA. .,Departments of Molecular Medicine and Medicine, Hofstra North Shore-LIJ School of Medicine, Hempstead, NY, 11549-1000, USA.
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Abstract
Monoclonal B-cell lymphocytosis (MBL) is defined as a laboratory abnormality where small (<5 x 10(9)/L) clonal B-cell populations are detected in the peripheral blood of otherwise healthy subjects. According to the immunophenotype, MBL is labeled as chronic lymphocytic leukemia (CLL)-like (75% of cases), atypical CLL, and CD5-negative. Concentration of clonal B cells differentiates low- (LC) and high-count (HC)-MBL (< or ≥ 0.5 x 10(9)/L, respectively). Thanks to technical improvements, we are able to identify CLL-like clonal B-cell populations at increased frequency with age, but we are still far from understanding its relationship with clinically overt CLL. LC-MBL, requiring high-throughput screening technique to be identified in population studies, seems to be a bird of a different feather and several hints suggest that LC-MBL is related to aging and/or chronic antigenic stimulation. Immunogenetic, cytogenetic and genetic data support the notion that HC-MBL, usually identified in the clinical setting, is a premalignant condition and, based on biological parameters, it is frequently difficult to differentiate it from early stage CLL. The rapid improvement and widespread availability of cutting-edge technology, in particular next-generation sequencing (NGS), raises hope that we are getting closer to unveiling the fundamental nature of MBL and CLL and how they are related to each other.
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Affiliation(s)
- Lydia Scarfò
- Department of Onco-Haematology and Division of Experimental Oncology, IRCCS San Raffaele Hospital and Università Vita-Salute San Raffaele, Milan, Italy.
| | - Paolo Ghia
- Department of Onco-Haematology and Division of Experimental Oncology, IRCCS San Raffaele Hospital and Università Vita-Salute San Raffaele, Milan, Italy
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Solomon BM, Chaffee KG, Moreira J, Schwager SM, Cerhan JR, Call TG, Kay NE, Slager SL, Shanafelt TD. Risk of non-hematologic cancer in individuals with high-count monoclonal B-cell lymphocytosis. Leukemia 2016; 30:331-6. [PMID: 26310541 PMCID: PMC4839962 DOI: 10.1038/leu.2015.235] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 08/10/2015] [Accepted: 08/18/2015] [Indexed: 12/29/2022]
Abstract
It is unknown whether individuals with monoclonal B-cell lymphocytosis (MBL) are at risk for adverse outcomes associated with chronic lymphocytic leukemia (CLL), such as the risk of non-hematologic cancer. We identified all locally residing individuals diagnosed with high-count MBL at Mayo Clinic between 1999 and 2009 and compared their rates of non-hematologic cancer with that of patients with CLL and two control cohorts: general medicine patients and patients who underwent clinical evaluation with flow cytometry but who had no hematologic malignancy. After excluding individuals with prior cancers, there were 107 high-count MBL cases, 132 CLL cases, 589 clinic controls and 482 flow cytometry controls. With 4.6 years median follow-up, 14 (13%) individuals with high-count MBL, 21 (4%) clinic controls (comparison MBL P<0.0001), 18 (4%) flow controls (comparison MBL P=0.0001) and 16 (12%) CLL patients (comparison MBL P=0.82) developed non-hematologic cancer. On multivariable Cox regression analysis, individuals with high-count MBL had higher risk of non-hematologic cancer compared with flow controls (hazard ratio (HR)=2.36; P=0.04) and borderline higher risk compared with clinic controls (HR=2.00; P=0.07). Patients with high-count MBL appear to be at increased risk for non-hematologic cancer, further reinforcing that high-count MBL has a distinct clinical phenotype despite low risk of progression to CLL.
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Affiliation(s)
- Benjamin M. Solomon
- University of South Dakota Sanford School of Medicine
- Avera Medical Group Oncology and Hematology
| | | | | | | | | | | | - Neil E. Kay
- Mayo Clinic Department of Medicine
- Division of Hematology
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39
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Sutton LA, Rosenquist R. Deciphering the molecular landscape in chronic lymphocytic leukemia: time frame of disease evolution. Haematologica 2015; 100:7-16. [PMID: 25552678 DOI: 10.3324/haematol.2014.115923] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Dramatic advances in next generation sequencing technologies have provided a novel opportunity to understand the molecular genetics of chronic lymphocytic leukemia through the comprehensive detection of genetic lesions. While progress is being made in elucidating the clinical significance of recurrently mutated genes, layers of complexity have been added to our understanding of chronic lymphocytic leukemia pathogenesis in the guise of the molecular evolution and (sub)clonal architecture of the disease. As we prepare for an era of tailored therapy, we need to appreciate not only the effect mutations have on drug response but also the impact subclones containing specific mutations have at initial presentation, during therapy and upon relapse. Therefore, although the wealth of emerging genetic data has great potential in helping us devise strategies to improve the therapy and prognosis of patients, focused efforts will be required to follow disease evolution, particularly in the context of novel therapies, in order to translate this knowledge into clinical settings.
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Affiliation(s)
- Lesley-Ann Sutton
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Sweden
| | - Richard Rosenquist
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Uppsala University, Sweden
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40
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Miltiades P, Lamprianidou E, Kerzeli IK, Nakou E, Papamichos SI, Spanoudakis E, Kotsianidis I. Three-fold higher frequency of circulating chronic lymphocytic leukemia-like B-cell clones in patients with Ph-Myeloproliferative neoplasms. Leuk Res 2015; 39:S0145-2126(15)30357-X. [PMID: 26307524 DOI: 10.1016/j.leukres.2015.08.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 07/28/2015] [Accepted: 08/09/2015] [Indexed: 11/23/2022]
Abstract
Philadelphia chromosome-negative Myeloproliferative neoplasms (Ph-MPN) are accompanied by a markedly increased risk for development of chronic lymphocytic leukemia (CLL) compared to the general population. However, the pattern of onset and the biological characteristics of CLL in patients with coexistent Ph-MPN are highly heterogeneous rendering questionable if the above association reflects a causal relationship between the two disorders or merely represents a random event. By analyzing 82 patients with Ph-MPN and 100 age-matched healthy individuals we demonstrate that MPN patients have an almost threefold higher prevalence of, typically low-count, CLL-like monoclonal B lymphocytosis (MBL) compared to normal adults. The clone size remained unaltered during the disease course and unaffected by the administration of hydroxycarbamide, whereas no patient with Ph-MPN/MBL progressed to CLL during a median follow up of 4 years. Monoclonal B cells in Ph-MPN/MBL patients and normal individuals and in four more patients with coexistence of overt CLL and MPN displayed heterogeneous biological characteristics, while the JAK2V617F mutation was absent in isolated lymphocytes from Ph-MPN patients with coexistence of CLL. Despite its clinical and biological variability, the increased incidence of MBL in Ph-MPN patients along with the one reported for CLL further enforces the notion of a shared pathophysiology among the two malignancies via a common genetic link and/or microenviromental interactions.
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Affiliation(s)
- Paraskevi Miltiades
- Department of Hematology, Democritus University of Thrace, Alexandroupolis, Greece
| | | | - Iliana K Kerzeli
- Department of Hematology, Democritus University of Thrace, Alexandroupolis, Greece
| | - Evangelia Nakou
- Department of Hematology, Democritus University of Thrace, Alexandroupolis, Greece
| | - Spyros I Papamichos
- Department of Hematology, Democritus University of Thrace, Alexandroupolis, Greece
| | - Emmanuil Spanoudakis
- Department of Hematology, Democritus University of Thrace, Alexandroupolis, Greece
| | - Ioannis Kotsianidis
- Department of Hematology, Democritus University of Thrace, Alexandroupolis, Greece.
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41
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Strati P, Shanafelt TD. Monoclonal B-cell lymphocytosis and early-stage chronic lymphocytic leukemia: diagnosis, natural history, and risk stratification. Blood 2015; 126:454-62. [PMID: 26065657 PMCID: PMC4624440 DOI: 10.1182/blood-2015-02-585059] [Citation(s) in RCA: 147] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 03/23/2015] [Indexed: 01/09/2023] Open
Abstract
Monoclonal B lymphocytosis (MBL) is defined as the presence of a clonal B-cell population in the peripheral blood with fewer than 5 × 10(9)/L B-cells and no other signs of a lymphoproliferative disorder. The majority of cases of MBL have the immunophenotype of chronic lymphocytic leukemia (CLL). MBL can be categorized as either low count or high count based on whether the B-cell count is above or below 0.5 × 10(9)/L. Low-count MBL can be detected in ∼5% of adults over the age of 40 years when assessed using standard-sensitivity flow cytometry assays. A number of biological and genetic characteristics distinguish low-count from high-count MBL. Whereas low-count MBL rarely progresses to CLL, high-count MBL progresses to CLL requiring therapy at a rate of 1% to 2% per year. High-count MBL is distinguished from Rai 0 CLL based on whether the B-cell count is above or below 5 × 10(9)/L. Although individuals with both high-count MBL and CLL Rai stage 0 are at increased risk of infections and second cancers, the risk of progression requiring treatment and the potential to shorten life expectancy are greater for CLL. This review highlights challenging questions regarding the classification, risk stratification, management, and supportive care of patients with MBL and CLL.
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Affiliation(s)
- Paolo Strati
- Mayo Clinic College of Medicine, Division of Hematology, Rochester, MN
| | - Tait D Shanafelt
- Mayo Clinic College of Medicine, Division of Hematology, Rochester, MN
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42
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Hospital population screening reveals overrepresentation of CD5− monoclonal B-cell lymphocytosis and monoclonal gammopathy of undetermined significance of IgM type. Ann Hematol 2015; 94:1559-65. [DOI: 10.1007/s00277-015-2409-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 05/25/2015] [Indexed: 10/23/2022]
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43
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Malecka A, Tierens A, Østlie I, Schmitz R, Trøen G, Spetalen S, Staudt LM, Smeland E, Holte H, Delabie J. Primary diffuse large B-cell lymphoma associated with clonally-related monoclonal B lymphocytosis indicates a common precursor cell. Haematologica 2015; 100:e415-8. [PMID: 26001788 DOI: 10.3324/haematol.2015.126656] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
| | - Anne Tierens
- Laboratory Medicine Program, University Health Network and Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
| | - Ingunn Østlie
- Department of Pathology, Oslo University Hospital, Norway
| | - Roland Schmitz
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Gunhild Trøen
- Department of Pathology, Oslo University Hospital, Norway
| | - Signe Spetalen
- Department of Pathology, Oslo University Hospital, Norway
| | - Louis M Staudt
- Lymphoid Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Erlend Smeland
- Institute for Cancer Research, Oslo University Hospital, Norway Center for Cancer Biomedicine, University of Oslo, Norway
| | - Harald Holte
- Center for Cancer Biomedicine, University of Oslo, Norway Department of Oncology, Cancer Clinic, Oslo University Hospital, Norway
| | - Jan Delabie
- Laboratory Medicine Program, University Health Network and Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada Center for Cancer Biomedicine, University of Oslo, Norway
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44
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Ganapathi KA, Pittaluga S, Odejide OO, Freedman AS, Jaffe ES. Early lymphoid lesions: conceptual, diagnostic and clinical challenges. Haematologica 2015; 99:1421-32. [PMID: 25176983 DOI: 10.3324/haematol.2014.107938] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
There are no "benign lymphomas", a fact due to the nature of lymphoid cells to circulate and home as part of their normal function. Thus, benign clonal expansions of lymphocytes are only rarely recognized when localized. Recent studies have identified a number of lymphoid proliferations that lie at the interface between benign and malignant. Some of these are clonal proliferations that carry many of the molecular hallmarks of their malignant counterparts, such as BCL2/IGH and CCND1/IGH translocations associated with the in situ forms of follicular lymphoma and mantle cell lymphoma, respectively. There are other clonal B-cell proliferations with low risk of progression; these include the pediatric variants of follicular lymphoma and marginal zone lymphoma. Historically, early or incipient forms of T/NK-cell neoplasia also have been identified, such as lymphomatoid papulosis and refractory celiac disease. More recently an indolent form of T-cell lymphoproliferative disease affecting the gastrointestinal tract has been described. Usually, CD8(+), the clonal cells are confined to the mucosa. The clinical course is chronic, but non-progressive. NK-cell enteropathy is a clinically similar condition, composed of cytologically atypical NK-cells that may involve the stomach, small bowel or colon. Breast implant-associated anaplastic large cell lymphoma is a cytologically alarming lesion that is self-limited if confined to the seroma cavity. Atypical lymphoid proliferations that lie at the border of benign and malignant can serve as instructive models of lymphomagenesis. It is also critical that they be correctly diagnosed to avoid unnecessary and potentially harmful therapy.
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Affiliation(s)
- Karthik A Ganapathi
- Hematopathology Section, Center for Cancer Research, Laboratory of Pathology, National Cancer Institute, Harvard Medical School, Boston, USA
| | - Stefania Pittaluga
- Hematopathology Section, Center for Cancer Research, Laboratory of Pathology, National Cancer Institute, Harvard Medical School, Boston, USA
| | - Oreofe O Odejide
- Center for Hematologic Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, USA
| | - Arnold S Freedman
- Center for Hematologic Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, USA
| | - Elaine S Jaffe
- Hematopathology Section, Center for Cancer Research, Laboratory of Pathology, National Cancer Institute, Harvard Medical School, Boston, USA
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45
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Soosapilla A, Pepperell D, Best G, Brizzi C, Mulligan CS, van Bilsen N, Mulligan SP. Monoclonal B-lymphocytosis in patients aged over 90 years is common but not inevitable, and has a prevalence comparable to that in individuals aged 65–90 years. Leuk Lymphoma 2015; 56:2182-4. [DOI: 10.3109/10428194.2014.976822] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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46
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Foster AE, Nguyen TT, Al-Hammadi N, Frater JL, Hassan A, Kreisel F. Clinical presentation, progression, and outcome of patients with clonal B-cell counts of less than 5 × 10(9)/l, 5 to 10 × 10(9)/l, and more than 10 × 10(9)/l and chronic lymphocytic leukemia immunophenotype. Am J Clin Pathol 2015; 143:70-7. [PMID: 25511144 DOI: 10.1309/ajcpixub5mzk8eci] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
OBJECTIVES The flow cytometric evaluation of peripheral lymphocytosis has led to a dramatic increase in the diagnosis of early stage chronic lymphocytic leukemia (CLL) and monoclonal B-cell lymphocytosis (MBL). Few studies exist to better delineate the natural history and differences between MBL and CLL. METHODS Applying the recently updated B-lymphocyte threshold of 5 × 10(9) B lymphocytes/L for the diagnosis of CLL, we evaluated the differences in initial presentation, disease progression, time to treatment (TTT), and 10-year overall survival rates between patients with less than 5 × 10 × 10(9)/L, 5 to 10 × 10(9)/L, and more than 10 × 10(9)/L B cells. These clinical/treatment parameters were also compared among the MBL, 5 to 10 CLL Rai stage 0, and more than 10 CLL Rai stage 0 groups. RESULTS In total, 310 patients were included, with 67 in the less than 5, 75 in the 5 to 10, and 168 in the more than 10 B-cell groups. Statistically significant differences were seen when comparing the 5 to 10 and more than 10 B-cell groups regarding anemia (P = .021 for median hemoglobin; P = .028 for anemia <11 g/dL), platelet count (P = .041 for median platelet count), splenomegaly (P = .013), initial management plan (P = .012 for observation; P = .0021 for treatment with chemotherapy), and TTT (P = .0033). No statistically significant difference was seen among the MBL, 5 to 10, and more than 10 CLL Rai stage 0 groups regarding TTT and 10-year overall survival. CONCLUSIONS Findings suggest that patients with B-cell counts of 5 to 10 × 10(9)/L behave clinically more similar to patients with B-cell counts of less than 5 × 10(9)/L.
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Affiliation(s)
- Angela E. Foster
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO
| | - TuDung T. Nguyen
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO
| | - Noor Al-Hammadi
- Division of Biostatistics, Washington University School of Medicine, St Louis, MO
| | - John L. Frater
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO
| | - Anjum Hassan
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO
| | - Friederike Kreisel
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO
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47
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Kostopoulos IV, Paterakis G, Papadimitriou K, Pavlidis D, Tsitsilonis OE, Papadhimitriou SI. Immunophenotypic analysis reveals heterogeneity and common biologic aspects in monoclonal B-cell lymphocytosis. Genes Chromosomes Cancer 2014; 54:210-21. [PMID: 25533355 DOI: 10.1002/gcc.22234] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2014] [Accepted: 11/28/2014] [Indexed: 02/02/2023] Open
Abstract
Monoclonal B-cell lymphocytosis (MBL) is the presence of small B-cell clones in the peripheral blood of healthy subjects. Most MBL have the characteristic phenotype of chronic lymphocyte leukemia (chronic lymphocytic leukemia (CLL)-like MBL), and depending on the number of monoclonal B-cells, may characterize a preclinical stage of the CLL. However, there are also MBL with an atypical (CD5(+) CD20(+/bright) CD23(dim/-) ) or a CD5(neg) phenotype, which remain largely unexplored. We performed an extended immunophenotypic, cytogenetic, and hematologic analysis in 75 CLL-like, 39 atypical, 50 CD5(neg) , and 7 biphenotypic MBL cases to detect differences or similarities among the MBL subsets. The phenotypic analysis showed expression variations in many surface markers and a wide spectrum of disease-specific phenotypes within each MBL subtype. Interphase fluorescent in situ hybridization analysis showed a different panel of aberrations according to the phenotype. Overall, del(13q14) and +12 were the most common abnormalities (39%), whereas del(11q13), del(17p13), and del(6q23) were detected only in 3, 1, and 0 cases, respectively. A comparison of MBL with overt chronic lymphoproliferations revealed common aspects in the preclinical state, regarding both the kind of cytogenetic aberrations detected and the lymphocyte composition. Our findings highlight not only the heterogeneity among MBL subsets but also indicate common biologic features which differentiate MBL from clinical disease.
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Affiliation(s)
- Ioannis V Kostopoulos
- Haematology Laboratory, "G. Gennimatas" Athens Regional General Hospital, Athens, Greece; Department of Animal and Human Physiology, Faculty of Biology, National and Kapodistrian University of Athens, Athens, Greece
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48
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Labib HA, Hassanein M, Etewa RL. Serum copper is a simple but valuable prognostic marker in B-cell chronic lymphocytic leukemia. Int J Hematol 2014; 100:575-81. [PMID: 25293553 DOI: 10.1007/s12185-014-1686-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 09/24/2014] [Accepted: 09/25/2014] [Indexed: 11/29/2022]
Abstract
We investigated the relationship between serum copper and various prognostic factors, time to start treatment, and treatment response in patients with B-cell chronic lymphocytic leukemia (B-CLL) and related disorders. Fifty newly diagnosed CLL patients aged 36-70 years were included. Patients were studied for serum lactate dehydrogenase (LDH), serum copper, direct Coombs' test, serum β(2) microglobulin (β(2)M), immunophenotyping for diagnosis of B-CLL, evaluation of CD38 and zeta-associated protein (ZAP-70) expression, and fluorescence in situ hybridization technique for cytogenetic analysis. Fourteen of 50 patients had high serum copper level; they had a significant increase in LDH, serum β(2)M, incidence of positive Coombs' test, CD38 and ZAP-70, incidence of 17p del, and a decrease in hemoglobin concentration, lymphocyte doubling time and time to start treatment with a lower treatment response rate. No significant difference was found with regard to Rai staging for CLL. These results indicate that serum copper level, a cheap and simple laboratory test, is of great value in CLL patients as it showed a significant association with some important adverse prognostic markers such as increased expression of ZAP-70 and CD38, shorter time to start treatment and poor response to treatment.
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Affiliation(s)
- Hany A Labib
- Clinical Pathology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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49
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New insights into monoclonal B-cell lymphocytosis. BIOMED RESEARCH INTERNATIONAL 2014; 2014:258917. [PMID: 25295254 PMCID: PMC4177785 DOI: 10.1155/2014/258917] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Accepted: 07/21/2014] [Indexed: 12/02/2022]
Abstract
Monoclonal B-cell lymphocytosis (MBL) is a premalignant condition characterized by the presence of less than 5000/μL circulating clonal B cells in otherwise healthy individuals. Three subcategories have been identified according to the immunophenotypic features: CLL-like, CD5(+) atypical, and CD5(−) MBL. CLL-like MBL is by far the most frequent and best studied category and further divided in low-count [LC] and high-count [HC] MBL, based on a cutoff value of 500/μL clonal B cells. LC-MBL typically remains stable and probably does not represent a truly premalignant condition, but rather an age-related immune senescence. On the other hand, HC-MBL is closely related to CLL-Rai0, bearing similar immunogenetic profile, and is associated with an annual risk of progression to CLL requiring therapy at a rate of 1.1%. Currently there are no reproducible factors for evaluating the risk of progression to CLL. CD5(−) MBL is characterized by an immunophenotype consistent with marginal zone origin and displays many similarities with marginal zone lymphomas (MZL), mainly the splenic MZL. The cutoff value of 5000/μL clonal B cells cannot probably be applied in CD5(−) MBL, requiring a new definition to describe those cases.
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50
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Nelson BP, Abdul-Nabi A, Goolsby C, Winter J, Peterson L. Characterization of tissue findings in bone marrow biopsy specimens with small monoclonal B-cell populations. Am J Clin Pathol 2014; 141:687-96. [PMID: 24713740 DOI: 10.1309/ajcpd5tobdju4gko] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVES Bone marrows (BMs) with incidentally identified, small monotypic B-cell populations (MBPs) were evaluated. METHODS BM aspirates with MBPs representing 5% or less of total events by flow cytometry, less than 5.0 × 10(9)/L B cells in blood, and no history of lymphoma or MBP with a different phenotype from prior lymphoma were selected. Clinical, immunophenotypic, and histologic findings were evaluated. RESULTS Forty-one of 3,052 BMs had MBPs at 5% or less of total events (median, 1%); 17 were females and 24 were males aged 30 to 87 years (median, 73 years). The MBPs were CD5- in 24, CD5+ resembling chronic lymphocytic leukemia (CLL) in 13, and CD5+ unlike CLL in four. Eighteen of 40 had lymphoid aggregates (LAs) with mostly T cells or a mixture of B and T cells, but three cases had B-cell-rich LAs. CONCLUSIONS Unlike monoclonal B lymphocytosis in blood, MBPs in BMs were more commonly CD5-. Forty-five percent of BMs had LAs; none were interpreted as lymphoma, although three were suspicious for B-cell lymphoma.
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Affiliation(s)
| | | | - Charles Goolsby
- Department of Pathology, Feinberg Medical School, Chicago, IL
| | - Jane Winter
- Department of Medicine, Division of Hematology Oncology, Northwestern University, Feinberg Medical School, Chicago, IL
| | - LoAnn Peterson
- Department of Pathology, Feinberg Medical School, Chicago, IL
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