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Title: Diagnostic and prognostic implications of tumor expression of the GATA-3 gene in nodal peripheral T-cell lymphoma (nPTCL): Retrospective data from a Latin American cohort
Authors: LAGE, Luis Alberto de Padua CovasBRITO, Claudio ViniciusLEVY, DeboraCULLER, Hebert FabricioCOUTO, Samuel Campanelli FreitasOLIVEIRA, Lucas Bassolli Alves deZERBINI, Maria Claudia NogueiraROCHA, VandersonPEREIRA, Juliana
Citation: LEUKEMIA RESEARCH, v.114, article ID 106794, 9p, 2022
Abstract: Background: Nodal peripheral T-cell lymphomas (nPTCL) encompass a heterogeneous group of mature and aggressive lymphoid malignancies, including peripheral T-cell lymphoma, not otherwise specified (PTCL, NOS), angioimmunoblastic T-cell lymphoma (AITL) and anaplastic large cell lymphoma (ALCL) ALK-positive and ALKnegative. Their differential diagnosis and prognosis are an issue in clinical practice. Accurate biomarkers to define the different subtypes of nPTCL and to stratify their prognosis are essential to improve their treatment approach. The aim of this study was to test the prognostic impact of GATA-3 gene expression, and its capability to discriminate the different subtypes of nPTCL. Patients and methods: We retrospectively assessed GATA-3 gene expression by quantitative real time PCR (qRTPCR) from neoplastic biopsies in Formalin-Fixed Paraffin-Embedded samples (FFPE) of 80 patients with nPTCL that were admitted in a single cancer treatment center from 2000 to 2017. Results: Median age was 49 years-old (IqR 34-59), 43/80 (53.7%) were male. Median follow-up was 1.72 years, 36.3% were classified as PTCL, NOS, 31.2% as ALK-negative ALCL, 21.2% as ALK-positive ALCL and 11.3% as AITL. The majority of cases had advanced stage cancer (III/IV). Two-year estimated overall survival (OS) and progression-free survival (PFS) were 52.2% and 39.5%, respectively. The median GATA-3 gene expression level
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