1. Apoptotic regulator BCL-2 blockade as a potential therapy in classical Hodgkin Lymphoma.
- Author
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Gamboa-Cedeño AM, Díaz M, Cristaldo N, Otero V, Schutz N, Fantl D, Cugliari S, Zerga M, Rojas-Bilbao E, Jauk F, García Rivello H, Nuñez M, and Ranuncolo SM
- Subjects
- Adolescent, Adult, Aged, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Biomarkers, Tumor metabolism, Bridged Bicyclo Compounds, Heterocyclic administration & dosage, Cell Line, Tumor, Child, Female, Hodgkin Disease mortality, Hodgkin Disease pathology, Humans, Male, Middle Aged, Molecular Targeted Therapy methods, Protein Serine-Threonine Kinases metabolism, Sulfonamides administration & dosage, Young Adult, NF-kappaB-Inducing Kinase, Antineoplastic Agents pharmacology, Bridged Bicyclo Compounds, Heterocyclic pharmacology, Hodgkin Disease drug therapy, Proto-Oncogene Proteins c-bcl-2 antagonists & inhibitors, Proto-Oncogene Proteins c-bcl-2 metabolism, Sulfonamides pharmacology
- Abstract
The challenge in classical Hodgkin Lymphoma (cHL) management is the 30-40% of refractory/relapsed cases., Aims: The aim of this work was to determine whether NIK and BCL-2 could be useful as prognosis biomarkers in cHL. In addition, we evaluated BCL-2 as a directed-therapy in cHL cell lines using venetoclax., Main Methods: We evaluated NIK and BCL-2 expression in 112 untreated cHL patients' lymph-node biopsies by immunohistochemistry. cHL cell lines were treated with venetoclax alone or combined with vincristine or doxorubicin. Cell viability, metabolic activity and cell death were analyzed by trypan-blue exclusion method, MTS assay and FDA/IP staining respectively., Key Findings: No correlation between NIK or BCL-2 expression and the majority of the clinical parameters was found. Patients with ≥60% BCL-2+ HRS-cells had a shorter disease-free survival (DFS) and overall survival (OS) (p = 0.002, p = 0.02 respectively). A decision tree analysis, in a 30 patients subgroup, showed that patients with <60% NIK+ HRS-cells but with ≥60% BCL-2+ HRS-cells had a worse outcome in terms of DFS and OS. These parameters performed better as prognosis indicators as compared to the diagnosis bone marrow status. Human cHL cell lines U-H01, KM-H2, L1236, SUPHD1, L540 showed sensitivity to venetoclax. The co-treatment effect of venetoclax and vincristine or doxorubicin on cell viability was diverse depending on the cell line evaluated., Significance: BCL-2 should be considered as a prognosis biomarker as well as a potential new therapeutic target in cHL. We report for the first time the cytotoxic effect of venetoclax in human cHL cell lines., (Copyright © 2021 Elsevier Inc. All rights reserved.)
- Published
- 2021
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