Genomic aberrations affecting the outcome of immunodeficiency-related diffuse large B-cell lymphoma

Ivo Kwee, Daniela Capello, Andrea Rinaldi, Paola M.V. Rancoita, Govind Bhagat, Tim C. Greiner, Michele Spina, Annunziata Gloghini, Wing C. Chan, Marco Paulli, Emanuele Zucca, Umberto Tirelli, Antonino Carbone, Gianluca Gaidano, Francesco Bertoni

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

Abstract

The objective of this study was to evaluate the prognostic impact of genomic regions in a series of human immunodeficiency virus (HIV)-related diffuse large B-cell lymphomas (HIV-DLBCLs) and post-transplant DLBCLs (PT-DLBCLs) analyzed by genome-wide DNA profiling. Minimal common regions (MCRs) were estimated on genomic profiles obtained using Affymetrix Human Mapping 250k Nsp I arrays and tested for their impact on clinical outcome by univariate analysis on 36 PT-DLBCLs, 19 HIV-DLBCLs and, as a control group, 149 DLBCLs arising in immunocompetent individuals (IC-DLBCLs). PT-DLBCL and HIV-DLBCL presented a similar outcome. Immunodeficiency-related DLBCL (ID-DLBCL) had a worse overall survival (OS) than IC-DLBCL. Seven MCRs showed a statistical impact on OS in PT-DLBCL and four in HIV-DLBCL. Among these, the presence of gains at 1q or at 18q defined a group of patients with PT-DLBCL with a very poor outcome (p < 0.0001). The presence of del(3p14.2) or of + 2p23.1 identified a group of HIV-DLBCLs with a very poor outcome (p = 0.0072). It was concluded that genomic aberrations affecting outcome differ between ID-DLBCL and IC-DLBCL and are also dependent on the type of acquired immunodeficiency.

Lingua originaleInglese
pagine (da-a)71-76
Numero di pagine6
RivistaLeukemia and Lymphoma
Volume53
Numero di pubblicazione1
DOI
Stato di pubblicazionePubblicato - gen 2012

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