Characterization of Epstein-Barr virus genotype in AIDS-related non-Hodgkin's lymphoma

Lucia Fassone, Antonino Carbone, Andrea Antinori, Gianluca Gaidano, Luigi Maria Larocca, Antonella Cingolani, Maurizio Martini, Giuseppe Migliaretti, Pier Luigi Oreste, Daniela Capello, Annunziata Gloghini, Daniela Vivenza, Riccardo Dolcetti

Research output: Contribution to journalArticlepeer-review

Abstract

In the present study sequence variations at the C terminus of the Epstein-Barr virus (EBV) nuclear antigen 1 (EBNA-1), EBV-encoded latent membrane protein 1 (LMP-1), and EBNA-2 and EBNA-3C genes were investigated in 64 cases of EBV-positive AIDS-related diffuse large cell lymphoma (AIDS-DLCL), both systemic (12) and localized primarily to the central nervous system (52), and in 12 cases of EBV-positive AIDS-related Burkitt's lymphoma (AIDS-BL). Sequence analysis of the EBNA-1 C-terminal region led to the distinction of two major unrelated EBV strains, termed strain P (prototype) and strain V (variant), and their related subtypes, namely P-ala, P-thr, V-leu, V-val, and V-pro. Analysis of the LMP-1 gene was performed to assess the frequency of the C-terminus deletion variant, whereas analysis of EBNA-2 and EBNA-3C genes led to the identification of the distribution of the EBV type 1 and type 2 strains. The frequency of EBNA-1 subtypes was assessed in 49 cases of AIDS-NHL, including 37 cases of AIDS-DLCL and 12 cases of AIDS-BL. The P strain was detected in 45 of 49 cases (91.8%) whereas the V strain was found in 4 of 49 samples (8.1%). A significant difference in the distribution of the P and V strains was found between AIDS-DLCL and AIDS-BL (p <0.01), because of the exclusive infection by the P strain of the AIDS-DLCL samples analyzed. The frequency of LMP-1 deletion variants and of EBV type 1 and type 2 strains in AIDS-DLCL overlapped with that of the general population, and no correlation was found with the evaluated clinicoepidemiological data of patients, that is, disease site, tumor histology, CD4+ cell counts, and HIV transmission route. In conclusion, we found that the distribution of the EBV genotype in all of the AIDS-NHL samples analyzed is similar to the viral representation found in control individuals of both immunocompetent and immunocompromised populations.

Original languageEnglish
Pages (from-to)19-26
Number of pages8
JournalAIDS Research and Human Retroviruses
Volume18
Issue number1
DOIs
Publication statusPublished - 2002

ASJC Scopus subject areas

  • Immunology
  • Virology

Fingerprint Dive into the research topics of 'Characterization of Epstein-Barr virus genotype in AIDS-related non-Hodgkin's lymphoma'. Together they form a unique fingerprint.

Cite this