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Deng X, Zhang M, Wang J, Zhou X, Xiao M. Characterization of clonal immunoglobulin heavy V-D-J gene rearrangements in Chinese patients with chronic lymphocytic leukemia: Clinical features and molecular profiles. Front Oncol 2023; 13:1120867. [PMID: 36874132 PMCID: PMC9978106 DOI: 10.3389/fonc.2023.1120867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 01/26/2023] [Indexed: 02/18/2023] Open
Abstract
Introduction Several prognostic factors of chronic lymphocytic leukemia (CLL) have been identified, such as cytogenetic aberrations and recurrent gene mutations. B-cell receptor (BCR) signaling plays an important role in the tumorigenesis of CLL, and its clinical significance in predicting prognosis is also under study. Methods Therefore, we assessed the already-known prognostic markers, immunoglobulin heavy chain (IGH) gene usage and the associations among these factors in 71 patients diagnosed with CLL in our center from October 2017 to March 2022. Sequencing of IGH gene rearrangements was performed using Sanger sequencing or IGH-based next-generation sequencing, and the results were further analyzed for distinct IGH/IGHD/IGHJ genes and the mutational status of the clonotypic IGHV (IGH variable) gene. Results In summary, by analyzing the distribution of potential prognostic factors in CLL patients, we displayed a landscape of molecular profiles, confirmed the predictive value of recurrent genetic mutations and chromosome aberrations, and found that IGHJ3 was associated with favorable markers (mutated IGHV, trisomy 12), while IGHJ6 tended to correlate with unfavorable factors (unmutated IGHV, del17p). Discussion These results provided an indication for IGH gene sequencing in predicting the prognosis of CLL.
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Affiliation(s)
- Xinyue Deng
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Immunotherapy Research Center for Hematologic Diseases of Hubei Province, Wuhan, Hubei, China
| | - Meilan Zhang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Immunotherapy Research Center for Hematologic Diseases of Hubei Province, Wuhan, Hubei, China
| | - Jiachen Wang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Immunotherapy Research Center for Hematologic Diseases of Hubei Province, Wuhan, Hubei, China
| | - Xiaoxi Zhou
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Immunotherapy Research Center for Hematologic Diseases of Hubei Province, Wuhan, Hubei, China
| | - Min Xiao
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.,Immunotherapy Research Center for Hematologic Diseases of Hubei Province, Wuhan, Hubei, China
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Stanganelli C, Torres DC, Ortega C, Márquez ME, Remedi V, Cabrera J, Mardaraz C, Galvano C, Krzywinski A, Lang C, Zanella L, Agriello E, Bezares R, Pavlovsky A, Pavlovsky MA, Oppezzo P, Slavutsky I. Somatic hypermutation profiles in stereotyped IGHV4-34 receptors from South American chronic lymphocytic leukemia patients. Ann Hematol 2022; 101:341-348. [PMID: 34713310 DOI: 10.1007/s00277-021-04703-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 10/18/2021] [Indexed: 11/28/2022]
Abstract
Chronic lymphocytic leukemia (CLL) is the most common mature B-cell neoplasm in the West. IGHV4-34 is one of the most frequently used genes in CLL patients, which usually display an indolent outcome. In this study, we explored the mutational profile of CLL patients expressing IGHV4-34 within different stereotypes and their association with prognostic factors and clinical outcome. A multi-institutional cohort of unselected 1444 CLL patients was analyzed by RT-PCR and bidirectional sequencing. Cytogenetics and molecular cytogenetics analyses were also performed. We identified 144 (10%) IGHV4-34 expressing cases, 119 mutated (M), 44 of them with stereotyped B-cell receptors. Subset #4 was the most frequent (56.8% of cases) followed by subsets #16 (13.6%), #29 (6.8%), and #201 (2.3%), with different distribution among countries. Analysis of somatic hypermutation profile showed significant differences among stereotyped subsets for G28>D/E, P45>S, E55>Q, and S64>I changes (p < 0.01) and high frequency of disruption of the glycosylation motif in the VH CDR2 region. All stereotyped IGHV4-34 cases showed normal karyotypes. Deletion 13q14 as a sole alteration was present in 42.8% of stereotyped cases with a different distribution among subsets. A shorter time to first treatment was found in non-stereotyped vs. stereotyped M-IGHV4-34 patients (p = 0.034). Our results add new information supporting the importance of recurrent amino acid changes at particular positions, contributing to refine the molecular characterization of South American CLL patients.
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Affiliation(s)
- Carmen Stanganelli
- División Patología Molecular, Instituto de Investigaciones Hematológicas, Academia Nacional de Medicina (ANM), Pacheco de Melo 3081, 1425, Buenos Aires, Argentina.
| | - Davi Coe Torres
- Instituto Nacional de Câncer, Río de Janeiro, RJ, Brazil
- Hospital Israelita Albert Einstein, São Paulo, SP, Brazil
| | - Claudia Ortega
- Chronic Lymphocytic Leukemia Laboratory, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - María Elena Márquez
- Chronic Lymphocytic Leukemia Laboratory, Institut Pasteur de Montevideo, Montevideo, Uruguay
- Instituto Venezolano de Investigaciones Científicas, Caracas, Venezuela
| | - Victoria Remedi
- Hospital Maciel, Administración Servicios de Salud del Estado, Ministerio de Salud, Montevideo, Uruguay
| | - Juana Cabrera
- División Patología Molecular, Instituto de Investigaciones Hematológicas, Academia Nacional de Medicina (ANM), Pacheco de Melo 3081, 1425, Buenos Aires, Argentina
| | | | - Camila Galvano
- Laboratorio de Genética de Neoplasias Linfoides, Instituto de Medicina Experimental, CONICET-ANM, Buenos Aires, Argentina
| | - Andrea Krzywinski
- Laboratorio de Genética de Neoplasias Linfoides, Instituto de Medicina Experimental, CONICET-ANM, Buenos Aires, Argentina
| | - Cecilia Lang
- Laboratorio de Especialidades Bioquímicas, Bahía Blanca, Argentina
| | - Lorena Zanella
- Laboratorio de Especialidades Bioquímicas, Bahía Blanca, Argentina
| | | | - Raimundo Bezares
- Hospital General de Agudos Teodoro Álvarez, Buenos Aires, Argentina
| | | | | | - Pablo Oppezzo
- Chronic Lymphocytic Leukemia Laboratory, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Irma Slavutsky
- Laboratorio de Genética de Neoplasias Linfoides, Instituto de Medicina Experimental, CONICET-ANM, Buenos Aires, Argentina
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[Distinguish immunoglobulin heavy chain variable region gene usage and mutational status of the leukemic B cells in Chinese patients with chronic lymphocytic leukemia]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2021; 42:1025-1029. [PMID: 35045675 PMCID: PMC8770890 DOI: 10.3760/cma.j.issn.0253-2727.2021.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Yang S, Varghese AM, Sood N, Chiattone C, Akinola NO, Huang X, Gale RP. Ethnic and geographic diversity of chronic lymphocytic leukaemia. Leukemia 2020; 35:433-439. [PMID: 33077870 DOI: 10.1038/s41375-020-01057-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 09/02/2020] [Accepted: 10/05/2020] [Indexed: 12/16/2022]
Abstract
East Asians, Asian Indians and Amerindians have a five to ten-fold lower age-adjusted incidence rate (AAIR) of chronic lymphocytic leukaemia (CLL) compared with persons of predominately European descent. The data we review suggest a genetic rather than environmental basis for this discordance. All these populations arose from a common African Black ancestor but different clades have different admixture with archaic hominins including Neanderthals, Denisovans and Homo erectus, which may explain different CLL incidences. There are also some differences in clinical laboratory and molecular co-variates of CLL between these populations. Because the true age-adjusted incidence rate in African Blacks is unknown it is not possible to determine whether modern Europeans acquired susceptibility to CLL or the other populations lost susceptibility and/or developed resistance to developing CLL. We also found other B-cell lymphomas and T- and NK-cell cancers had different incidences in the populations we studied. These data provide clues to determining the cause(s) of CLL.
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Affiliation(s)
- Shenmiao Yang
- Peking University Peoples Hospital; Peking University Institute of Hematology, Beijing, China
| | - Abraham M Varghese
- Little Flower Hospital and Research Centre, Kerala, India.,St James University Hospital, Leeds, UK
| | - Nitin Sood
- Clinical Haematology and Stem Cell Transplant, Medanta-Medicity, Gurgaon, India
| | - Carlos Chiattone
- Department of Hematology and Oncology, Santa Casa Medical School, Sao Paulo, Brazil
| | - Norah O Akinola
- Department of Haematology and Immunology, Obafemi Awolowo University and Teaching Hospitals Complex, Ile-Ife, Osun State, Nigeria
| | - Xiaojun Huang
- Peking University Peoples Hospital; Peking University Institute of Hematology, Beijing, China
| | - Robert Peter Gale
- Haematology Research Centre, Department of Immunology and Inflammation, Imperial College London, London, UK.
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Torres DC, Emmel V, Tascheri V, Campos MM, Bigni RDS, Sabino ADP, Yamamoto M, Campregher PV, Muniz MTC, Abdelhay E, Hassan R. Stereotyped B-cell receptors in the context of a diverse Brazilian series of chronic lymphocytic leukemia. Blood Cells Mol Dis 2020; 86:102491. [PMID: 32911384 DOI: 10.1016/j.bcmd.2020.102491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 08/23/2020] [Indexed: 10/23/2022]
Affiliation(s)
- Davi Coe Torres
- Laboratory of Oncovirology, Center for Bone Marrow Transplants, Brazilian National Cancer Institute - INCA, Rio de Janeiro, Brazil.
| | - Vanessa Emmel
- Laboratory of Oncovirology, Center for Bone Marrow Transplants, Brazilian National Cancer Institute - INCA, Rio de Janeiro, Brazil
| | - Veronica Tascheri
- Laboratory of Oncovirology, Center for Bone Marrow Transplants, Brazilian National Cancer Institute - INCA, Rio de Janeiro, Brazil
| | - Mércia Mendes Campos
- Laboratory of Immunology, Center for Bone Marrow Transplants, Brazilian National Cancer Institute - INCA, Rio de Janeiro, Brazil
| | - Ricardo de Sá Bigni
- Hematology Service, Brazilian National Cancer Institute - INCA, Rio de Janeiro, Brazil
| | - Adriano de Paula Sabino
- Clinical and Toxicological Analysis Department, Faculty of Pharmacy, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Mihoko Yamamoto
- Hematology Division, Federal University of São Paulo (EPM-UNIFESP), São Paulo, SP, Brazil
| | | | | | - Eliana Abdelhay
- Stem Cell Laboratory, Center for Bone Marrow Transplants, Brazilian National Cancer Institute - INCA, Rio de Janeiro, Brazil
| | - Rocio Hassan
- Laboratory of Oncovirology, Center for Bone Marrow Transplants, Brazilian National Cancer Institute - INCA, Rio de Janeiro, Brazil
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