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Krystel-Whittemore M, Petrova-Drus K, Ptashkin RN, Ewalt MD, Yao J, Liu Y, Zhu M, Benhamida J, Durham B, Kumar J, Nafa K, Kiecka I, Bowman AS, Gedvilaite E, Casanova J, Lin YT, Mohanty AS, Rana S, Rema AB, Rijo I, Chaves N, Salazar P, Yun A, Lachhander S, Wang W, Haque MS, Xiao W, Roshal M, Giralt S, Salles G, Rampal R, Stein EM, Perales MA, Horwitz S, Jakubowski A, Ponce D, Markova A, Birsoy O, Mandelker D, Mantha S, Dogan A, Benayed R, Ladanyi M, Berger MF, Brannon AR, Zehir A, Vanderbilt C, Arcila ME. Cell-free DNA from nail clippings as source of normal control for genomic studies in hematologic malignancies. Haematologica 2024; 109:3269-3281. [PMID: 38450530 PMCID: PMC11443392 DOI: 10.3324/haematol.2024.285054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 02/29/2024] [Indexed: 03/08/2024] Open
Abstract
Comprehensive genomic sequencing is becoming a critical component in the assessment of hematologic malignancies, with broad implications for patients' management. In this context, unequivocally discriminating somatic from germline events is challenging but greatly facilitated by matched analysis of tumor:normal pairs of samples. In contrast to solid tumors, in hematologic malignancies conventional sources of normal control material (peripheral blood, buccal swabs, saliva) could be highly involved by the neoplastic process, rendering them unsuitable. In this work we describe our real-world experience using cell-free DNA (cfDNA) isolated from nail clippings as an alternate source of normal control material, through the dedicated review of 2,610 tumor:nail pairs comprehensively sequenced by MSK-IMPACT-heme. Overall, we found that nail cfDNA is a robust germline control for paired genomic studies. In a subset of patients, nail DNA may be contaminated by tumor DNA, reflecting unique attributes of the hematologic disease and transplant history. Contamination is generally low level, but significantly more common among patients with myeloid neoplasms (20.5%; 304/1,482) than among those with lymphoid diseases (5.4%; 61/1,128) and particularly enriched in myeloproliferative neoplasms with marked myelofibrosis. When identified in patients with lymphoid and plasma-cell neoplasms, mutations commonly reflected a myeloid profile and correlated with a concurrent/evolving clonal myeloid neoplasm. Donor DNA was identified in 22% (11/50) of nails collected after allogeneic stem-cell transplantation. In this cohort, an association with a recent history of graft-versus-host disease was identified. These findings should be considered as a potential limitation to the use of nails as a source of normal control DNA but could also provide important diagnostic information regarding the disease process.
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Affiliation(s)
| | - Kseniya Petrova-Drus
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Ryan N Ptashkin
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Mark D Ewalt
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - JinJuan Yao
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Ying Liu
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Menglei Zhu
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Jamal Benhamida
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Benjamin Durham
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Jyoti Kumar
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Khedoudja Nafa
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Iwona Kiecka
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Anita S Bowman
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Erika Gedvilaite
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Jacklyn Casanova
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Yun-Te Lin
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Abhinita S Mohanty
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Satshil Rana
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Anoop Balakrishnan Rema
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Ivelise Rijo
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Nelio Chaves
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Paulo Salazar
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Anita Yun
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Sean Lachhander
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Wei Wang
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Mohammad S Haque
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Wenbin Xiao
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Mikhail Roshal
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Sergio Giralt
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Gilles Salles
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Raajit Rampal
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Eytan M Stein
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | | | - Steven Horwitz
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Ann Jakubowski
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Doris Ponce
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Alina Markova
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Ozge Birsoy
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Diana Mandelker
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Simon Mantha
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Ahmet Dogan
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Ryma Benayed
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Marc Ladanyi
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Michael F Berger
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - A Rose Brannon
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Ahmet Zehir
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Chad Vanderbilt
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Maria E Arcila
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY.
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2
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Harland L, Borgmann V, Otto F, Overkamp M, Bonzheim I, Fend F, Quintanilla-Martinez L, Nann D. Clonal Hematopoiesis and Bone Marrow Infiltration in Patients With Follicular Helper T-Cell Lymphoma of Angioimmunoblastic Type. Mod Pathol 2024; 37:100519. [PMID: 38777036 DOI: 10.1016/j.modpat.2024.100519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 05/03/2024] [Accepted: 05/14/2024] [Indexed: 05/25/2024]
Abstract
Follicular helper T-cell (TFH) lymphoma harbors recurrent mutations of RHOAG17V, IDH2R172, TET2, and DNMT3A. TET2 and DNMT3A mutations are the most frequently affected genes in clonal hematopoiesis (CH). The aim of our study was to investigate the frequency of CH in bone marrow biopsies (BMB) of TFH/angioimmunoblastic T-cell lymphoma (TFH-AITL) patients and its association with myeloid neoplasms. A total of 29 BMB from 22 patients with a diagnosis of TFH-AITL were analyzed by next-generation sequencing (NGS) with a custom panel. Morphologically, 5 BMB revealed that TFH-AITL infiltrates of >5% of bone marrow (BM) cellularity confirmed in 4 cases by NGS-based T-cell clonality. IDH2R172 was demonstrated only in 1 (3%) of 29, and RHOAG17V in 2 (7%) of 29 samples. TET2 and DNMT3A were identified in 24 (83%) of 29 and 17 (59%) of 29 BMB, respectively. In the parallel lymph node the frequencies of mutations were 27% (IDH2R172), 64% (RHOAG17V), 86% (TET2), and 50% (DNMT3A). TET2 and/or DNMT3A mutations identical in lymph node and BMB were present in 18 (82%) of 22 patients, regardless of BM infiltration. In 3 cases the CH mutations were detected 13, 41, and 145 months before TFH-AITL diagnosis. Cases with TET2/DNMT3A mutations and BM variant allele frequencies >40% (7/18, 39%) showed lower blood counts. However, only low platelet count was statistically significant (P = .024). Myeloid neoplasms and/or myelodysplastic syndrome-related mutations were identified in 4 cases (4/22; 18%); all with high TET2 variant allele frequencies (>40%; P = .0114). In conclusion, CH is present in 82% of TFH-AITL and can be demonstrated up to 145 months before TFH-AITL diagnosis. NGS T-cell clonality analysis is an excellent tool to confirm TFH-AITL BM infiltration. Concurrent myeloid neoplasms were identified in 18% of the cases and were associated with TET2 mutations with high allelic burden (>40%). We demonstrated that myeloid neoplasms might occur simultaneously or precede the diagnosis of TFH lymphoma.
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Affiliation(s)
- Lennart Harland
- Institute of Pathology and Neuropathology, University Hospital Tuebingen and Comprehensive Cancer Center, Tuebingen, Germany; Department of Hematology, Oncology, Clinical Immunology and Rheumatology, University Hospital Tuebingen, Tuebingen, Germany
| | - Vanessa Borgmann
- Institute of Pathology and Neuropathology, University Hospital Tuebingen and Comprehensive Cancer Center, Tuebingen, Germany
| | - Franziska Otto
- Institute of Pathology and Neuropathology, University Hospital Tuebingen and Comprehensive Cancer Center, Tuebingen, Germany
| | - Mathis Overkamp
- Institute of Pathology and Neuropathology, University Hospital Tuebingen and Comprehensive Cancer Center, Tuebingen, Germany
| | - Irina Bonzheim
- Institute of Pathology and Neuropathology, University Hospital Tuebingen and Comprehensive Cancer Center, Tuebingen, Germany
| | - Falko Fend
- Institute of Pathology and Neuropathology, University Hospital Tuebingen and Comprehensive Cancer Center, Tuebingen, Germany
| | - Leticia Quintanilla-Martinez
- Institute of Pathology and Neuropathology, University Hospital Tuebingen and Comprehensive Cancer Center, Tuebingen, Germany.
| | - Dominik Nann
- Institute of Pathology and Neuropathology, University Hospital Tuebingen and Comprehensive Cancer Center, Tuebingen, Germany
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Vogelsberg A, Harland L, Borgmann V, Otto F, Weller JF, Nann D, Quintanilla-Martinez L, Fend F. Clonal haematopoiesis: A common progenitor for cytotoxic peripheral T-cell lymphoma and angioimmunoblastic T-cell lymphoma. Br J Haematol 2024; 204:2071-2076. [PMID: 38323682 DOI: 10.1111/bjh.19335] [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: 11/26/2023] [Revised: 01/26/2024] [Accepted: 01/29/2024] [Indexed: 02/08/2024]
Abstract
Recent studies have shown that follicular helper T-cell lymphoma of angioimmunoblastic type (AITL), the most common nodal peripheral T-cell lymphoma (PTCL), frequently arises in a background of clonal haematopoiesis (CH), a preneoplastic condition affecting up to 40% of elderly individuals. Data on a potential CH association are limited for other PTCL. We report a unique patient who sequentially developed both cytotoxic PTCL, not otherwise specified and AITL with distinct T-cell receptor rearrangements but shared somatic mutations originating from the same CH clone, thus providing convincing evidence that CH can give rise to T-cell neoplasms of different lineage.
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Affiliation(s)
- Antonio Vogelsberg
- Department of Pathology and Neuropathology, University Hospital and Comprehensive Cancer Center Tuebingen, Tuebingen, Germany
| | - Lennart Harland
- Department of Pathology and Neuropathology, University Hospital and Comprehensive Cancer Center Tuebingen, Tuebingen, Germany
- Department of Internal Medicine II, Hematology, Oncology, Clinical Immunology and Rheumatology, University Hospital Tuebingen, Tuebingen, Germany
| | - Vanessa Borgmann
- Department of Pathology and Neuropathology, University Hospital and Comprehensive Cancer Center Tuebingen, Tuebingen, Germany
| | - Franziska Otto
- Department of Pathology and Neuropathology, University Hospital and Comprehensive Cancer Center Tuebingen, Tuebingen, Germany
| | - Jan F Weller
- Department of Internal Medicine II, Hematology, Oncology, Clinical Immunology and Rheumatology, University Hospital Tuebingen, Tuebingen, Germany
| | - Dominik Nann
- Department of Pathology and Neuropathology, University Hospital and Comprehensive Cancer Center Tuebingen, Tuebingen, Germany
| | - Leticia Quintanilla-Martinez
- Department of Pathology and Neuropathology, University Hospital and Comprehensive Cancer Center Tuebingen, Tuebingen, Germany
| | - Falko Fend
- Department of Pathology and Neuropathology, University Hospital and Comprehensive Cancer Center Tuebingen, Tuebingen, Germany
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Filipek-Gorzała J, Kwiecińska P, Szade A, Szade K. The dark side of stemness - the role of hematopoietic stem cells in development of blood malignancies. Front Oncol 2024; 14:1308709. [PMID: 38440231 PMCID: PMC10910019 DOI: 10.3389/fonc.2024.1308709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 01/02/2024] [Indexed: 03/06/2024] Open
Abstract
Hematopoietic stem cells (HSCs) produce all blood cells throughout the life of the organism. However, the high self-renewal and longevity of HSCs predispose them to accumulate mutations. The acquired mutations drive preleukemic clonal hematopoiesis, which is frequent among elderly people. The preleukemic state, although often asymptomatic, increases the risk of blood cancers. Nevertheless, the direct role of preleukemic HSCs is well-evidenced in adult myeloid leukemia (AML), while their contribution to other hematopoietic malignancies remains less understood. Here, we review the evidence supporting the role of preleukemic HSCs in different types of blood cancers, as well as present the alternative models of malignant evolution. Finally, we discuss the clinical importance of preleukemic HSCs in choosing the therapeutic strategies and provide the perspective on further studies on biology of preleukemic HSCs.
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Affiliation(s)
- Jadwiga Filipek-Gorzała
- Laboratory of Stem Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
- Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
- Doctoral School of Exact and Natural Sciences, Jagiellonian University, Krakow, Poland
| | - Patrycja Kwiecińska
- Laboratory of Stem Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Agata Szade
- Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - Krzysztof Szade
- Laboratory of Stem Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
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Nann D, Fend F, Quintanilla-Martinez L. [TFH lymphoma and associated clonal hematopoiesis]. PATHOLOGIE (HEIDELBERG, GERMANY) 2023; 44:144-149. [PMID: 37870568 DOI: 10.1007/s00292-023-01234-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/12/2023] [Indexed: 10/24/2023]
Abstract
T‑follicular helper (TFH) cell lymphoma (TFHL) is a lymphoma of mature T cells with phenotypic characteristics and gene expression signature of TFH cells. The lymphoma harbors recurrent mutations of RHOAG17V, IDH2R172, TET2 and DNMT3A. Whereas RHOAG17V and IDH2R172 are almost exclusively found in this entity, TET2 and DNMT3A mutations occur in a broad variety of hematological neoplasms and are the most frequently affected genes in clonal hematopoiesis (CH). CH in humans shows a progression rate to overt hematologic neoplasia of about 0.5 to 1% per year, depending on clone size, number of mutations and affected genes. In 2018, the first case was described in which a lymphoid (TFHL) and myeloid (acute myeloid leukemia) neoplasm arose from a common mutated progenitor cell with shared mutations and additional private mutations. In recent years, further studies showed in up to 70% of patients with TFHL the occurrence of identical mutations of TET2 and/or DNMT3A in the myeloid cells, irrespective of bone marrow involvement, indicating a prominent role of CH in the pathogenesis of TFHL. In up to 18%, these patients show also additional synchronous or metachronous overt myeloid neoplasms, often with private myelodysplastic-type mutations, most often myelodysplastic syndrome, chronic myelomonocytic leukemia and acute myeloid leukemia. Recently, there is also evidence for two distinct lymphoid neoplasms arising from CH. TFH lymphoma cases with antecedent or concomitant hematologic neoplasm often show high variant allelic frequencies of TET2 and often more than one mutation, suggesting a role for surveillance in these patients.
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Affiliation(s)
- Dominik Nann
- Institut für Pathologie und Neuropathologie, Universitätsklinikum Tübingen und Comprehensive Cancer Center, Tübingen, Deutschland.
- Institut für Pathologie, Universitätsklinikum Tübingen, Liebermeisterstr. 8, 72076, Tübingen, Deutschland.
| | - Falko Fend
- Institut für Pathologie und Neuropathologie, Universitätsklinikum Tübingen und Comprehensive Cancer Center, Tübingen, Deutschland
| | - Leticia Quintanilla-Martinez
- Institut für Pathologie und Neuropathologie, Universitätsklinikum Tübingen und Comprehensive Cancer Center, Tübingen, Deutschland
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Nkosi D, Allbee AW, Rothberg PG, Friedberg JW, Evans AG. Common clonal origin of three distinct hematopoietic neoplasms in a single patient: B-cell lymphoma, T-cell lymphoma, and polycythemia vera. Cold Spring Harb Mol Case Stud 2023; 9:a006313. [PMID: 38199781 PMCID: PMC10815289 DOI: 10.1101/mcs.a006313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 11/27/2023] [Indexed: 01/12/2024] Open
Abstract
The potential for more than one distinct hematolymphoid neoplasm to arise from a common mutated stem or precursor cell has been proposed based on findings in primary human malignancies. Particularly, angioimmunoblastic T-cell lymphoma (AITL), which shares a somatic mutation profile in common with other hematopoietic malignancies, has been reported to occur alongside myeloid neoplasms or clonal B-cell proliferations, with identical mutations occurring in more than one cell lineage. Here we report such a case of an elderly woman who was diagnosed over a period of 8 years with diffuse large B-cell lymphoma, polycythemia vera, and AITL, each harboring identical somatic mutations in multiple genes. Overall, at least five identical nucleotide mutations were shared across multiple specimens, with two identical mutations co-occurring at variable variant allele frequencies in all three specimen types. These findings lend credence to the theory that a common mutated stem cell could give rise to multiple neoplasms through parallel hematopoietic differentiation pathways.
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Affiliation(s)
- Dingani Nkosi
- Department of Pathology and Laboratory Medicine, University of Rochester, Rochester, New York 14642, USA
| | - Andrew W Allbee
- University of Rochester School of Medicine and Dentistry, University of Rochester, Rochester, New York 14642, USA
| | - Paul G Rothberg
- Department of Pathology and Laboratory Medicine, University of Rochester, Rochester, New York 14642, USA
| | - Jonathan W Friedberg
- Wilmot Cancer Institute, University of Rochester, Rochester, New York 14642, USA
| | - Andrew G Evans
- Department of Pathology and Laboratory Medicine, University of Rochester, Rochester, New York 14642, USA;
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Böck J, Maurus K, Gerhard-Hartmann E, Brändlein S, Kurz KS, Ott G, Anagnostopoulos I, Rosenwald A, Zamò A. Targeted panel sequencing in the routine diagnosis of mature T- and NK-cell lymphomas: report of 128 cases from two German reference centers. Front Oncol 2023; 13:1231601. [PMID: 37664054 PMCID: PMC10468607 DOI: 10.3389/fonc.2023.1231601] [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: 05/30/2023] [Accepted: 07/31/2023] [Indexed: 09/05/2023] Open
Abstract
Diagnosing any of the more than 30 types of T-cell lymphomas is considered a challenging task for many pathologists and currently requires morphological expertise as well as the integration of clinical data, immunophenotype, flow cytometry and clonality analyses. Even considering all available information, some margin of doubt might remain using the current diagnostic procedures. In recent times, the genetic landscape of most T-cell lymphomas has been elucidated, showing a number of diagnostically relevant mutations. In addition, recent data indicate that some of these genetic alterations might bear prognostic and predictive value. Extensive genetic analyses, such as whole exome or large panel sequencing are still expensive and time consuming, therefore limiting their application in routine diagnostic. We therefore devoted our effort to develop a lean approach for genetic analysis of T-cell lymphomas, focusing on maximum efficiency rather than exhaustively covering all possible targets. Here we report the results generated with our small amplicon-based panel that could be used routinely on paraffin-embedded and even decalcified samples, on a single sample basis in parallel with other NGS-panels used in our routine diagnostic lab, in a relatively short time and with limited costs. We tested 128 available samples from two German reference centers as part of our routine work up (among which 116 T-cell lymphomas), which is the largest routine diagnostic series reported to date. Our results showed that this assay had a very high rate of technical success (97%) and could detect mutations in the majority (79%) of tested T-cell lymphoma samples.
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Affiliation(s)
- Julia Böck
- Institute of Pathology, University of Würzburg, Würzburg, Germany
| | - Katja Maurus
- Institute of Pathology, University of Würzburg, Würzburg, Germany
| | | | | | - Katrin S. Kurz
- Department of Clinical Pathology, Robert-Bosch-Hospital, and Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart, Germany
| | - German Ott
- Department of Clinical Pathology, Robert-Bosch-Hospital, and Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, Stuttgart, Germany
| | | | | | - Alberto Zamò
- Institute of Pathology, University of Würzburg, Würzburg, Germany
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8
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Amador C, Cook JR, Czader M, Duffield A, Goodlad J, Nejati R, Ott G, Xiao W, Dave S, Wasik MA, Dogan A. Transdifferentiation, phenotypic infidelity, progression, and transformation in T/NK-cell neoplasms: Report from the 2021 SH/EAHP Workshop. Am J Clin Pathol 2023:7160348. [PMID: 37167533 DOI: 10.1093/ajcp/aqad045] [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: 12/08/2022] [Accepted: 03/14/2023] [Indexed: 05/13/2023] Open
Abstract
OBJECTIVES Sessions 8 and 9 of the 2021 Society for Hematopathology and the European Association for Haematopathology Workshop aimed to collect examples of transdifferentiation, lineage infidelity, progression, and transformation in precursor and mature T/natural killer (NK)-cell neoplasms. METHODS Twenty-eight cases were submitted and analyzed, with whole-exome sequencing and genome-wide RNA expression analysis performed in a subset of the cases. RESULTS In session 8, 7 T-lymphoblastic lymphoma/leukemia cases were received that showed transdifferentiation to clonally related mature myeloid hematopoietic neoplasms, including 6 histiocytic/dendritic cell lineage neoplasms and a mast cell sarcoma. Session 9 included 21 mature T-cell neoplasms that were grouped into 3 themes. The first one addressed phenotypic infidelity in mature T-cell lymphomas (TCLs) and included 8 TCLs expressing aberrant antigens, mimicking classic Hodgkin and non-Hodgkin B-cell lymphomas. The second theme addressed disease progression in TCL and included 5 cutaneous T-cell lymphoproliferative disorders and 2 T-cell large granular lymphocyte proliferations with subsequent progression to systemic TCL. The third theme included 6 patients with TCL with T-follicular helper phenotype, mainly angioimmunoblastic T-cell lymphoma, with concurrent/subsequent clonal hematopoiesis or myeloid neoplasms and/or subsequent/concomitant diffuse large B-cell lymphoma. CONCLUSIONS This cohort of cases allowed us to illustrate, discuss, and review current concepts of transdifferentiation, aberrant antigen expression, and progression in various T/NK-cell neoplasms.
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Affiliation(s)
- 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
| | - Magdalena Czader
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, US
| | - Amy Duffield
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, US
| | - John Goodlad
- Department of Pathology, NHS Greater Glasgow and Clyde, Glasgow, UK
| | - 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
| | - Sandeep Dave
- Department of Medicine, Duke University School of Medicine, Durham, NC, US
| | - Mariusz A Wasik
- Department of Pathology, Fox Chase Cancer Center, Philadelphia, PA, US
| | - Ahmet Dogan
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, US
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9
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Fend F, Quintanilla-Martinez L, Klapper W. [Classification of peripheral T-cell lymphomas : News and open questions]. PATHOLOGIE (HEIDELBERG, GERMANY) 2023; 44:173-183. [PMID: 37115288 DOI: 10.1007/s00292-023-01192-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/07/2023] [Indexed: 04/29/2023]
Abstract
Recently, two new classifications were released: the International Consensus Classification (ICC) drafted by the Clinical Advisory Committee and the short version of the 5th Edition of the WHO classification of hematolymphoid tumors. In light of new clinical, morphological, and molecular data, both classifications also revised the classification of peripheral T‑cell lymphomas. In addition to relatively minor changes in terminology and disease definitions, both new classifications mirror the considerable gain of knowledge on the genetic alterations of different T‑cell lymphoma entities. The present review summarizes the most important changes for T‑cell lymphomas in both classifications, the differences between the classifications, and diagnostically relevant issues.
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Affiliation(s)
- Falko Fend
- Institut für Pathologie und Neuropathologie, Eberhard Karls Universität Tübingen, Liebermeisterstr. 8, 72076, Tübingen, Deutschland.
| | - Leticia Quintanilla-Martinez
- Institut für Pathologie und Neuropathologie, Eberhard Karls Universität Tübingen, Liebermeisterstr. 8, 72076, Tübingen, Deutschland
| | - Wolfram Klapper
- Institut für Pathologie, Sektion Hämatopathologie, Universitätsklinikum Schleswig-Holstein (UKSH), Campus Kiel, Arnold-Heller-Straße 3, Haus U33, 24105, Kiel, Deutschland.
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Jensen JL, Easaw S, Anderson T, Varma Y, Zhang J, Jensen BC, Coombs CC. Clonal Hematopoiesis and the Heart: a Toxic Relationship. Curr Oncol Rep 2023; 25:455-463. [PMID: 36920637 PMCID: PMC10015145 DOI: 10.1007/s11912-023-01398-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/31/2023] [Indexed: 03/16/2023]
Abstract
PURPOSE OF REVIEW Clonal hematopoiesis (CH) refers to the expansion of hematopoietic stem cell clones and their cellular progeny due to somatic mutations, mosaic chromosomal alterations (mCAs), or copy number variants which naturally accumulate with age. CH has been linked to increased risk of blood cancers, but CH has also been linked to adverse cardiovascular outcomes. RECENT FINDINGS A combination of clinical outcome studies and mouse models have offered strong evidence that CH mutations either correlate with or cause atherosclerosis, diabetes mellitus, chronic kidney disease, heart failure, pulmonary hypertension, aortic aneurysm, myocardial infarction, stroke, aortic stenosis, poor outcomes following transcatheter aortic valve replacement (TAVR) or orthotopic heart transplant, death or need of renal replacement therapy secondary to cardiogenic shock, death from cardiovascular causes at large, and enhance anthracycline cardiac toxicity. Mechanistically, some adverse outcomes are caused by macrophage secretion of IL-1β and IL-6, neutrophil invasion of injured myocardium, and T-cell skewing towards inflammatory phenotypes. CH mutations lead to harmful inflammation and arterial wall invasion by bone marrow-derived cells resulting in poor cardiovascular health and outcomes. Blockade of IL-1β or JAK2 signaling are potential avenues for preventing CH-caused cardiovascular morbidity and mortality.
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Affiliation(s)
- Jeffrey L Jensen
- Department of Medicine, Division of Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Saumya Easaw
- Carolinas Hospitalist Group, Atrium Health, Charlotte, NC, USA
| | - Travis Anderson
- Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Yash Varma
- Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Jiandong Zhang
- Department of Medicine, Division of Cardiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Brian C Jensen
- Department of Medicine, Division of Cardiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Catherine C Coombs
- Department of Medicine, Division of Hematology and Oncology, University of California, 101 The City Dr S, Irvine, Orange, CA, 92868-3201, USA.
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11
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Causes of Clonal Hematopoiesis: a Review. Curr Oncol Rep 2023; 25:211-220. [PMID: 36719597 DOI: 10.1007/s11912-023-01362-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/01/2022] [Indexed: 02/01/2023]
Abstract
PURPOSE OF REVIEW Clonal hematopoiesis (CH) is an age-dependent process detectable using advanced sequencing technologies and is associated with multiple adverse health outcomes including cardiovascular disease and cancer. The purpose of this review is to summarize known causes of CH mutations and to identify key areas and considerations for future research on CH. RECENT FINDINGS Studies have identified multiple potential causes of CH mutations including smoking, cancer therapies, cardiometabolic disease, inflammation, and germline risk factors. Additionally, large-scale studies have facilitated the identification of gene-specific effects of CH mutation risk factors that may have unique downstream health implications. For example, cancer therapies and sources of environmental radiation appear to cause CH through their impact on DNA damage repair genes. There is a growing body of evidence defining risk factors for CH mutations. Standardization in the identification of CH mutations may have important implications for future research. Additional studies in underrepresented populations and their diverse environmental exposures are needed to facilitate broad public health impact of the study of CH mutations.
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12
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Andrades A, Peinado P, Alvarez-Perez JC, Sanjuan-Hidalgo J, García DJ, Arenas AM, Matia-González AM, Medina PP. SWI/SNF complexes in hematological malignancies: biological implications and therapeutic opportunities. Mol Cancer 2023; 22:39. [PMID: 36810086 PMCID: PMC9942420 DOI: 10.1186/s12943-023-01736-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 01/30/2023] [Indexed: 02/23/2023] Open
Abstract
Hematological malignancies are a highly heterogeneous group of diseases with varied molecular and phenotypical characteristics. SWI/SNF (SWItch/Sucrose Non-Fermentable) chromatin remodeling complexes play significant roles in the regulation of gene expression, being essential for processes such as cell maintenance and differentiation in hematopoietic stem cells. Furthermore, alterations in SWI/SNF complex subunits, especially in ARID1A/1B/2, SMARCA2/4, and BCL7A, are highly recurrent across a wide variety of lymphoid and myeloid malignancies. Most genetic alterations cause a loss of function of the subunit, suggesting a tumor suppressor role. However, SWI/SNF subunits can also be required for tumor maintenance or even play an oncogenic role in certain disease contexts. The recurrent alterations of SWI/SNF subunits highlight not only the biological relevance of SWI/SNF complexes in hematological malignancies but also their clinical potential. In particular, increasing evidence has shown that mutations in SWI/SNF complex subunits confer resistance to several antineoplastic agents routinely used for the treatment of hematological malignancies. Furthermore, mutations in SWI/SNF subunits often create synthetic lethality relationships with other SWI/SNF or non-SWI/SNF proteins that could be exploited therapeutically. In conclusion, SWI/SNF complexes are recurrently altered in hematological malignancies and some SWI/SNF subunits may be essential for tumor maintenance. These alterations, as well as their synthetic lethal relationships with SWI/SNF and non-SWI/SNF proteins, may be pharmacologically exploited for the treatment of diverse hematological cancers.
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Affiliation(s)
- Alvaro Andrades
- grid.4489.10000000121678994Department of Biochemistry and Molecular Biology I. Faculty of Sciences, University of Granada, Granada, Spain ,grid.470860.d0000 0004 4677 7069GENYO, Centre for Genomics and Oncological Research: Pfizer/University of Granada/Andalusian Regional Government, PTS Granada, Granada, Spain ,grid.507088.2Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
| | - Paola Peinado
- grid.4489.10000000121678994Department of Biochemistry and Molecular Biology I. Faculty of Sciences, University of Granada, Granada, Spain ,grid.470860.d0000 0004 4677 7069GENYO, Centre for Genomics and Oncological Research: Pfizer/University of Granada/Andalusian Regional Government, PTS Granada, Granada, Spain ,grid.507088.2Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain ,grid.451388.30000 0004 1795 1830Present Address: The Francis Crick Institute, London, UK
| | - Juan Carlos Alvarez-Perez
- grid.4489.10000000121678994Department of Biochemistry and Molecular Biology I. Faculty of Sciences, University of Granada, Granada, Spain ,grid.470860.d0000 0004 4677 7069GENYO, Centre for Genomics and Oncological Research: Pfizer/University of Granada/Andalusian Regional Government, PTS Granada, Granada, Spain ,grid.507088.2Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
| | - Juan Sanjuan-Hidalgo
- grid.4489.10000000121678994Department of Biochemistry and Molecular Biology I. Faculty of Sciences, University of Granada, Granada, Spain ,grid.470860.d0000 0004 4677 7069GENYO, Centre for Genomics and Oncological Research: Pfizer/University of Granada/Andalusian Regional Government, PTS Granada, Granada, Spain
| | - Daniel J. García
- grid.470860.d0000 0004 4677 7069GENYO, Centre for Genomics and Oncological Research: Pfizer/University of Granada/Andalusian Regional Government, PTS Granada, Granada, Spain ,grid.4489.10000000121678994Department of Biochemistry and Molecular Biology III and Immunology, University of Granada, Granada, Spain
| | - Alberto M. Arenas
- grid.4489.10000000121678994Department of Biochemistry and Molecular Biology I. Faculty of Sciences, University of Granada, Granada, Spain ,grid.470860.d0000 0004 4677 7069GENYO, Centre for Genomics and Oncological Research: Pfizer/University of Granada/Andalusian Regional Government, PTS Granada, Granada, Spain ,grid.507088.2Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
| | - Ana M. Matia-González
- grid.4489.10000000121678994Department of Biochemistry and Molecular Biology I. Faculty of Sciences, University of Granada, Granada, Spain ,grid.470860.d0000 0004 4677 7069GENYO, Centre for Genomics and Oncological Research: Pfizer/University of Granada/Andalusian Regional Government, PTS Granada, Granada, Spain ,grid.507088.2Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
| | - Pedro P. Medina
- grid.4489.10000000121678994Department of Biochemistry and Molecular Biology I. Faculty of Sciences, University of Granada, Granada, Spain ,grid.470860.d0000 0004 4677 7069GENYO, Centre for Genomics and Oncological Research: Pfizer/University of Granada/Andalusian Regional Government, PTS Granada, Granada, Spain ,grid.507088.2Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
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13
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Zhao A, Zhou H, Yang J, Li M, Niu T. Epigenetic regulation in hematopoiesis and its implications in the targeted therapy of hematologic malignancies. Signal Transduct Target Ther 2023; 8:71. [PMID: 36797244 PMCID: PMC9935927 DOI: 10.1038/s41392-023-01342-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 01/03/2023] [Accepted: 01/19/2023] [Indexed: 02/18/2023] Open
Abstract
Hematologic malignancies are one of the most common cancers, and the incidence has been rising in recent decades. The clinical and molecular features of hematologic malignancies are highly heterogenous, and some hematologic malignancies are incurable, challenging the treatment, and prognosis of the patients. However, hematopoiesis and oncogenesis of hematologic malignancies are profoundly affected by epigenetic regulation. Studies have found that methylation-related mutations, abnormal methylation profiles of DNA, and abnormal histone deacetylase expression are recurrent in leukemia and lymphoma. Furthermore, the hypomethylating agents and histone deacetylase inhibitors are effective to treat acute myeloid leukemia and T-cell lymphomas, indicating that epigenetic regulation is indispensable to hematologic oncogenesis. Epigenetic regulation mainly includes DNA modifications, histone modifications, and noncoding RNA-mediated targeting, and regulates various DNA-based processes. This review presents the role of writers, readers, and erasers of DNA methylation and histone methylation, and acetylation in hematologic malignancies. In addition, this review provides the influence of microRNAs and long noncoding RNAs on hematologic malignancies. Furthermore, the implication of epigenetic regulation in targeted treatment is discussed. This review comprehensively presents the change and function of each epigenetic regulator in normal and oncogenic hematopoiesis and provides innovative epigenetic-targeted treatment in clinical practice.
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Affiliation(s)
- Ailin Zhao
- Department of Hematology, West China Hospital, Sichuan University, 610041, Chengdu, Sichuan, China
| | - Hui Zhou
- Department of Hematology, West China Hospital, Sichuan University, 610041, Chengdu, Sichuan, China
| | - Jinrong Yang
- Department of Hematology, West China Hospital, Sichuan University, 610041, Chengdu, Sichuan, China
| | - Meng Li
- Department of Hematology, West China Hospital, Sichuan University, 610041, Chengdu, Sichuan, China
| | - Ting Niu
- Department of Hematology, West China Hospital, Sichuan University, 610041, Chengdu, Sichuan, China.
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14
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Marques-Piubelli ML, Amador C, Vega F. Pathologic and molecular insights in nodal T-follicular helper cell lymphomas. Front Oncol 2023; 13:1105651. [PMID: 36793612 PMCID: PMC9923156 DOI: 10.3389/fonc.2023.1105651] [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: 11/22/2022] [Accepted: 01/13/2023] [Indexed: 01/31/2023] Open
Abstract
T-follicular helper (TFH) cells are one of the T-cell subsets with a critical role in the regulation of germinal center (GC) reactions. TFH cells contribute to the positive selection of GC B-cells and promote plasma cell differentiation and antibody production. TFH cells express a unique phenotype characterized by PD-1hi, ICOShi, CD40Lhi, CD95hi, CTLAhi, CCR7lo, and CXCR5hi . Three main subtypes of nodal TFH lymphomas have been described: 1) angioimmunoblastic-type, 2) follicular-type, and 3) not otherwise specified (NOS). The diagnosis of these neoplasms can be challenging, and it is rendered based on a combination of clinical, laboratory, histopathologic, immunophenotypic, and molecular findings. The markers most frequently used to identify a TFH immunophenotype in paraffin-embedded tissue sections include PD-1, CXCL13, CXCR5, ICOS, BCL6, and CD10. These neoplasms feature a characteristic and similar, but not identical, mutational landscape with mutations in epigenetic modifiers (TET2, DNMT3A, IDH2), RHOA, and T-cell receptor signaling genes. Here, we briefly review the biology of TFH cells and present a summary of the current pathologic, molecular, and genetic features of nodal lymphomas. We want to highlight the importance of performing a consistent panel of TFH immunostains and mutational studies in TCLs to identify TFH lymphomas.
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Affiliation(s)
- Mario L Marques-Piubelli
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Catalina Amador
- Division of Hematopathology, Department of Pathology and Laboratory Medicine, University of Miami, Miami, FL, United States
| | - Francisco Vega
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
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15
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Riva M, Tisi MC, Bertorelle R, Famengo B, D'Amore ESG, Pizzi M, Parisi A, Boscato E, Mazzucco M, Semenzato G, Krampera M, Gherlinzoni F, Trentin L, Ruggeri M, Visco C, Stefani PM, Piazza F. IDH2 R172 mutation in angioimmunoblastic T-cell lymphoma: A retrospective multicenter case series. Eur J Haematol 2023; 110:217-220. [PMID: 36264618 DOI: 10.1111/ejh.13885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 09/20/2022] [Accepted: 09/22/2022] [Indexed: 01/24/2023]
Affiliation(s)
- Marcello Riva
- Cell Therapy and Hematology, San Bortolo Hospital, Vicenza, Italy
| | | | - Roberta Bertorelle
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Istituto Oncologico Veneto, Padova, Italy
| | | | | | - Marco Pizzi
- General Pathology and Cytopathology Unit, Department of Medicine-DIMED, University of Padova, Padova, Italy
| | - Alice Parisi
- Unit of Pathology, Department of Diagnostics and Public Health, G.B. Rossi University Hospital, Verona, Italy
| | - Elena Boscato
- Department of Pathology and Molecular Genetics, Treviso General Hospital, Treviso, Italy
| | - Maddalena Mazzucco
- Hematology Unit, Ospedale dell'Angelo and Ospedale S. Giovanni e Paolo, Mestre Venezia, Italy
| | | | - Mauro Krampera
- Department of Medicine, Section of Hematology, University of Verona, Verona, Italy
| | - Filippo Gherlinzoni
- Hematology Unit, Department of Medicine, Treviso General Hospital, Treviso, Italy
| | - Livio Trentin
- Department of Medicine, Hematology and Clinical Immunology Unit, Padova, Italy
| | - Marco Ruggeri
- Cell Therapy and Hematology, San Bortolo Hospital, Vicenza, Italy
| | - Carlo Visco
- Department of Medicine, Section of Hematology, University of Verona, Verona, Italy
| | - Piero Maria Stefani
- Hematology Unit, Department of Medicine, Treviso General Hospital, Treviso, Italy
| | - Francesco Piazza
- Department of Medicine, Hematology and Clinical Immunology Unit, Padova, Italy
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16
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Lewis NE, Sardana R, Dogan A. Mature T-cell and NK-cell lymphomas: updates on molecular genetic features. Int J Hematol 2023; 117:475-491. [PMID: 36637656 DOI: 10.1007/s12185-023-03537-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 12/15/2022] [Accepted: 01/06/2023] [Indexed: 01/14/2023]
Abstract
Mature T-cell and NK-cell lymphomas are a heterogeneous group of rare and typically aggressive neoplasms. Diagnosis and subclassification have historically relied primarily on the integration of clinical, histologic, and immunophenotypic features, which often overlap. The widespread application of a variety of genomic techniques in recent years has provided extensive insight into the pathobiology of these diseases, allowing for more precise diagnostic classification, improved prognostication, and development of novel therapies. In this review, we summarize the genomic features of the most common types of mature T-cell and NK-cell lymphomas with a particular focus on the contribution of genomics to biologic insight, classification, risk stratification, and select therapies in the context of the recently published International Consensus and updated World Health Organization classification systems.
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Affiliation(s)
- Natasha E Lewis
- Hematopathology Service, Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA.
| | - Rohan Sardana
- Hematopathology Service, Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA
| | - Ahmet Dogan
- Hematopathology Service, Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY, 10065, USA
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17
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Jin M, Ji J, Chen X, Zhou Y, Wang D, Liu A. The emerging role of TET enzymes in the immune microenvironment at the maternal-fetal interface during decidualization and early pregnancy. Front Immunol 2023; 13:1066599. [PMID: 36685517 PMCID: PMC9850229 DOI: 10.3389/fimmu.2022.1066599] [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: 10/11/2022] [Accepted: 11/28/2022] [Indexed: 01/07/2023] Open
Abstract
A dysregulated immune microenvironment at the maternal-fetal interface in early pregnancy may lead to early pregnancy loss, fetal growth restriction, and preeclampsia. However, major questions about how epigenetic modifications regulate the immune microenvironment during the decidualization process and embryo implantation remain unanswered. DNA methylation, the main epigenetic mechanism involved in the endometrial cycle, is crucial for specific transcriptional networks associated with endometrial stromal cell (ESC) proliferation, hormone response, decidualization, and embryo implantation. Ten-eleven translocation (TET) enzymes, responsible for catalyzing the conversion of 5-methylcytosine to 5-hydroxymethylcyosine, 5-formylytosine, and 5-carboxylcyosine to achieve the DNA demethylation process, appear to play a critical role in decidualization and embryo implantation. Here, we provide a comprehensive view of their structural similarities and the common mechanism of regulation in the microenvironment at the maternal-fetal interface during decidualization and early pregnancy. We also discuss their physiological role in the decidual immune microenvironment. Finally, we propose a key hypothesis regarding TET enzymes at the maternal-fetal interface between decidual immune cells and ESCs. Future work is needed to elucidate their functional role and examine therapeutic strategies targeting these enzymes in pregnancy-related disease preclinical models, which would be of great value for future implications in disease diagnosis or treatment.
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Affiliation(s)
- Mengmeng Jin
- Department of Reproductive Endocrinology, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China,Key Laboratory of Reproductive Genetics (Ministry of Education), Zhejiang University, Hangzhou, China
| | - Jianxiong Ji
- Department of Neurosurgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xi Chen
- Department of Reproductive Endocrinology, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China,Key Laboratory of Reproductive Genetics (Ministry of Education), Zhejiang University, Hangzhou, China
| | - Ying Zhou
- Department of Reproductive Endocrinology, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China,Key Laboratory of Reproductive Genetics (Ministry of Education), Zhejiang University, Hangzhou, China
| | - Dimin Wang
- Department of Reproductive Endocrinology, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China,Key Laboratory of Reproductive Genetics (Ministry of Education), Zhejiang University, Hangzhou, China,*Correspondence: Aixia Liu, ; Dimin Wang,
| | - Aixia Liu
- Department of Reproductive Endocrinology, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China,Key Laboratory of Reproductive Genetics (Ministry of Education), Zhejiang University, Hangzhou, China,Department of Reproductive Medicine, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, China,*Correspondence: Aixia Liu, ; Dimin Wang,
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18
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Game of clones: Diverse implications for clonal hematopoiesis in lymphoma and multiple myeloma. Blood Rev 2022; 56:100986. [PMID: 35753868 DOI: 10.1016/j.blre.2022.100986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 06/16/2022] [Accepted: 06/17/2022] [Indexed: 11/23/2022]
Abstract
Clonal hematopoiesis (CH) refers to the disproportionate expansion of hematopoietic stem cell clones and their corresponding progeny following the acquisition of somatic mutations. CH is common at the time of diagnosis in patients with blood cancers, including multiple myeloma (MM) and lymphoma. The presence of CH mutations correlates with IL-6 mediated inflammation and may result in lymphoma or MM modulation through microenvironment effects or by manifestations of the mutations themselves within the founding tumor clone. As might be expected with a variety of mutations and multiple potential mechanisms, CH exerts context-dependent effects, being protective in some settings and harmful in others. Though CH is very common in patients with hematologic malignancies, how it intersects with therapy and the natural disease course of these cancers are active areas of investigation. In lymphomas and MM specifically, patients have high rates of CH at diagnosis and are subsequently exposed to therapies, such as cytotoxic chemotherapy, that can cause CH progression to overt hematologic malignancy. The expanding diversity of treatment modalities for these cancers also increases the opportunities for CH to impact clinical outcome and modulate clinical responses. Here we review the basic biology and known health effects of CH, and we focus on the clinical relevance of CH in lymphoma and MM.
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