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Lage LADPC, Culler HF, Reichert CO, da Siqueira SAC, Pereira J. Angioimmunoblastic T-cell lymphoma and correlated neoplasms with T-cell follicular helper phenotype: from molecular mechanisms to therapeutic advances. Front Oncol 2023; 13:1177590. [PMID: 37182145 PMCID: PMC10169672 DOI: 10.3389/fonc.2023.1177590] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 04/13/2023] [Indexed: 05/16/2023] Open
Abstract
Angioimmunoblastic T-cell lymphoma (AITL) is the second most frequent subtype of mature T-cell lymphoma (MTCL) in the Western world. It derives from the monoclonal proliferation of T-follicular helper (TFH) cells and is characterized by an exacerbated inflammatory response and immune dysregulation, with predisposition to autoimmunity phenomena and recurrent infections. Its genesis is based on a multistep integrative model, where age-related and initiator mutations involve epigenetic regulatory genes, such as TET-2 and DNMT3A. Subsequently, driver-mutations, such as RhoA G17V and IDH-2 R172K/S promote the expansion of clonal TFH-cells ("second-hit"), that finally begin to secrete cytokines and chemokines, such as IL-6, IL-21, CXCL-13 and VEGF, modulating a network of complex relationships between TFH-cells and a defective tumor microenvironment (TME), characterized by expansion of follicular dendritic cells (FDC), vessels and EBV-positive immunoblasts. This unique pathogenesis leads to peculiar clinical manifestations, generating the so-called "immunodysplastic syndrome", typical of AITL. Its differential diagnosis is broad, involving viral infections, collagenosis and adverse drug reactions, which led many authors to use the term "many-faced lymphoma" when referring to AITL. Although great advances in its biological knowledge have been obtained in the last two decades, its treatment is still an unmet medical need, with highly reserved clinical outcomes. Outside the setting of clinical trials, AITL patients are still treated with multidrug therapy based on anthracyclines (CHOP-like), followed by up-front consolidation with autologous stem cell transplantation (ASCT). In this setting, the estimated 5-year overall survival (OS) is around 30-40%. New drugs, such as hypomethylating agents (HMAs) and histone deacetylase inhibitors (HDAi), have been used for relapsed/refractory (R/R) disease with promising results. Such agents have their use based on a biological rationale, have significant potential to improve the outcomes of patients with AITL and may represent a paradigm shift in the therapeutic approach to this lymphoma in the near future.
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Affiliation(s)
- Luís Alberto de Pádua Covas Lage
- Department of Hematology, Hemotherapy & Cell Therapy, University of São Paulo (USP), São Paulo, SP, Brazil
- Laboratory of Medical Investigation in Pathogenesis and Directed Therapy in Onco-Immuno-Hematology (LIM-31), University of São Paulo (USP), São Paulo, SP, Brazil
| | - Hebert Fabricio Culler
- Department of Hematology, Hemotherapy & Cell Therapy, University of São Paulo (USP), São Paulo, SP, Brazil
- Laboratory of Medical Investigation in Pathogenesis and Directed Therapy in Onco-Immuno-Hematology (LIM-31), University of São Paulo (USP), São Paulo, SP, Brazil
| | - Cadiele Oliana Reichert
- Department of Hematology, Hemotherapy & Cell Therapy, University of São Paulo (USP), São Paulo, SP, Brazil
- Laboratory of Medical Investigation in Pathogenesis and Directed Therapy in Onco-Immuno-Hematology (LIM-31), University of São Paulo (USP), São Paulo, SP, Brazil
| | | | - Juliana Pereira
- Department of Hematology, Hemotherapy & Cell Therapy, University of São Paulo (USP), São Paulo, SP, Brazil
- Laboratory of Medical Investigation in Pathogenesis and Directed Therapy in Onco-Immuno-Hematology (LIM-31), University of São Paulo (USP), São Paulo, SP, Brazil
- Department of Hematology and Oncology, Hospital Alemão Oswaldo Cruz (HAOC), São Paulo, SP, Brazil
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de Pádua Covas Lage LA, Culler HF, Barreto GC, Reichert CO, Levy D, de Oliveira Costa R, Rocha V, Pereira J. Tumor mutation burden involving epigenetic regulatory genes and the RhoA GTPase predicts overall survival in nodal mature T-cell lymphomas. Clin Epigenetics 2022; 14:180. [PMID: 36536430 PMCID: PMC9764541 DOI: 10.1186/s13148-022-01395-4] [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: 07/24/2022] [Accepted: 12/02/2022] [Indexed: 12/23/2022] Open
Abstract
Nodal mature T-cell lymphomas (nMTCL) comprises a heterogeneous group of rare malignancies with aggressive biological behavior and poor prognosis. Epigenetic phenomena, including mutations in genes that control DNA methylation and histone deacetylation, in addition to inactivating mutations in the RhoA GTPase, play a central role in its pathogenesis and constitute potential new targets for therapeutic intervention. Tumor mutational burden (TMB) reflects the process of clonal evolution, predicts response to anti-cancer therapies and has emerged as a prognostic biomarker in several solid neoplasms; however, its potential prognostic impact remains unknown in nMTCL. In this study, we conducted Sanger sequencing of formalin-fixed paraffin-embedded (FFPE) diagnostic tumor samples using a target-panel to search for recurrent mutations involving the IDH-1/IDH-2, TET-2, DNMT3A and RhoA genes in 59 cases of nMTCL. For the first time, we demonstrated that high-TMB, defined by the presence of ≥ two mutations involving the aforementioned genes, was associated with decreased overall survival in nMTCL patients treated with CHOP-like regimens. Additionally, high-TMB was correlated with bulky disease, lower overall response rate, and higher mortality. Future studies using larger cohorts may validate our preliminary results that indicate TMB as a potential molecular biomarker associated with adverse prognosis in nMTCL.
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Affiliation(s)
- Luís Alberto de Pádua Covas Lage
- grid.11899.380000 0004 1937 0722Department of Hematology, Hemotherapy and Cell Therapy, University of São Paulo (USP), São Paulo, Brazil ,grid.11899.380000 0004 1937 0722Laboratory of Medical Investigation in Pathogenesis and Directed Therapy in Onco-Immuno-Hematology (LIM-31), University of São Paulo (USP), Avenue Dr Enéas de Carvalho Aguiar, 155, Ambulatory Building, 1st. Floor, Room 61, Cerqueira César, São Paulo, 05403-000 Brazil
| | - Hebert Fabrício Culler
- grid.11899.380000 0004 1937 0722Department of Hematology, Hemotherapy and Cell Therapy, University of São Paulo (USP), São Paulo, Brazil ,grid.11899.380000 0004 1937 0722Laboratory of Medical Investigation in Pathogenesis and Directed Therapy in Onco-Immuno-Hematology (LIM-31), University of São Paulo (USP), Avenue Dr Enéas de Carvalho Aguiar, 155, Ambulatory Building, 1st. Floor, Room 61, Cerqueira César, São Paulo, 05403-000 Brazil
| | - Guilherme Carneiro Barreto
- grid.11899.380000 0004 1937 0722Department of Hematology, Hemotherapy and Cell Therapy, University of São Paulo (USP), São Paulo, Brazil
| | - Cadiele Oliana Reichert
- grid.11899.380000 0004 1937 0722Laboratory of Medical Investigation in Pathogenesis and Directed Therapy in Onco-Immuno-Hematology (LIM-31), University of São Paulo (USP), Avenue Dr Enéas de Carvalho Aguiar, 155, Ambulatory Building, 1st. Floor, Room 61, Cerqueira César, São Paulo, 05403-000 Brazil ,grid.11899.380000 0004 1937 0722Laboratory of Medical Investigation in Immunology and Histocompatibility (LIM-19), University of São Paulo (USP), São Paulo, Brazil
| | - Débora Levy
- grid.11899.380000 0004 1937 0722Laboratory of Medical Investigation in Immunology and Histocompatibility (LIM-19), University of São Paulo (USP), São Paulo, Brazil
| | - Renata de Oliveira Costa
- grid.442074.10000 0004 0508 9331Department of Hematology and Hemotherapy, Faculdade de Ciências Médicas de Santos (FCMS), Centro Universitário Lusíada, Santos, Brazil
| | - Vanderson Rocha
- grid.11899.380000 0004 1937 0722Department of Hematology, Hemotherapy and Cell Therapy, University of São Paulo (USP), São Paulo, Brazil ,grid.11899.380000 0004 1937 0722Laboratory of Medical Investigation in Pathogenesis and Directed Therapy in Onco-Immuno-Hematology (LIM-31), University of São Paulo (USP), Avenue Dr Enéas de Carvalho Aguiar, 155, Ambulatory Building, 1st. Floor, Room 61, Cerqueira César, São Paulo, 05403-000 Brazil ,Fundação Pró-Sangue, Blood Bank of São Paulo, São Paulo, Brazil ,grid.4991.50000 0004 1936 8948Churchill Hospital, Oxford University, Oxford, UK
| | - Juliana Pereira
- grid.11899.380000 0004 1937 0722Department of Hematology, Hemotherapy and Cell Therapy, University of São Paulo (USP), São Paulo, Brazil ,grid.11899.380000 0004 1937 0722Laboratory of Medical Investigation in Pathogenesis and Directed Therapy in Onco-Immuno-Hematology (LIM-31), University of São Paulo (USP), Avenue Dr Enéas de Carvalho Aguiar, 155, Ambulatory Building, 1st. Floor, Room 61, Cerqueira César, São Paulo, 05403-000 Brazil ,grid.414358.f0000 0004 0386 8219Hospital Alemão Oswaldo Cruz (HAOC), São Paulo, Brazil
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