Important note: Information in this article was accurate in 1994. The state of the art may have changed since the publication date.
Subtypes of Epstein-Barr virus in HIV-1-positive and HIV-1-negative patients with Hodgkin's disease (Meeting abstract).
EACR-12: 12th Biennial Meeting of the European Association for Cancer Research. April 4-7, 1993, Brussels, Belgium, 1993.. Unique Identifier : AIDSLINE ICDB/94697510 De Re V; De Vita S; Marzotto A; Gloghini A; Carbone A; Uccini S; Scarpa A; and Boiocchi M; Div. of Experimental Oncology, Aviano, Italy
Abstract:
Considerable evidence suggests that EBV has a role in the pathogenesis of Hodgkin's disease (HD). In immunocompetent hosts type 2 EBV is considered to be a much less potent transformer of lymphocytes than type 1 virus strain. However, type 2 EBV may be involved in the pathogenesis of non-Hodgkin's lymphomas arising in immunocompromised patients (ie, those with HIV-1 or malarial infection). To determine whether type 2 EBV may also play a role in similar patients developing HD, we characterized EBV subtypes, using the PCR technology, in 36 tumor samples (previously demonstrated to be EBV-positive by amplification of the IR3 genome sequence common to both EBV strains) from 10 HIV-1-positive patients as well as from a control population of 26 HIV-1-negative patients. Type 2 EBV was detected in 5 samples from HIV-1-positive patients, and in only 1 sample from the HIV-1-negative group. DNA of one HIV-1-positive patient and DNA of one HIV-1-negative patient was positive for both EBV type 1 and EBV type 2. DNA sequence analysis of EBNA-2 region indicated the concomitant presence of both EBV type 1 and EBV type 2 expansions and excluded a possible 'hybrid-recombinant' in these two tumor samples. A biclonal EBV tumor infection was also detected by Southern blot in two additional HIV-1-negative cases, both clones belonging, this time, to type 1 virus strain. In six EBV-positive cases (all from HIV-1-negative patients), characterization of the virus could not be performed presumably on account of deletion including EBNA-2 region. Our results indicate that in HIV-1-infected patients type 2 EBV presents a transforming ability that is roughly similar to that shown by type 1 virus strain also in patients developing HD.
Keywords: Acquired Immunodeficiency Syndrome/COMPLICATIONS/*MICROBIOLOGY Antigens, Viral/GENETICS DNA-Binding Proteins/GENETICS Gene Amplification Genome, Viral *Herpesvirus 4, Human/GENETICS Hodgkin's Disease/COMPLICATIONS/GENETICS/*MICROBIOLOGY Human HIV Seropositivity/GENETICS/*MICROBIOLOGY ABSTRACT 941230
M94C4338
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