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M94A3081.TXT
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1994-10-25
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Document 3081
DOCN M94A3081
TI HIV DNA in seropositive subjects showing stable levels of CD4 counts.
DT 9412
AU Garbuglia AR; Salvi R; Di Caro A; Benedetto A; Montella A; Recchia O; Di
Sora F; Lauria F; Delfini C; Centre of Virology, S. Camillo Hosp., Rome,
Italy.
SO Int Conf AIDS. 1994 Aug 7-12;10(1):158 (abstract no. PB0059). Unique
Identifier : AIDSLINE ICA10/94369494
AB Since 1982 the progression to AIDS of about 1,000 HIV seropositive
individuals was evaluated by investigating several clinical parameters
and in particular the CD4 lymphocyte counts decline. We observed nine
asymptomatic subjects showing stable or increased levels of CD4 counts,
even if seven years or more elapsed from the first documentation of
infection. To get insights on this unusual behaviour, we investigated
these individuals for: i) detection and quantitation by PCR of HIV DNA
in lymphocytes and macrophages; ii) presence of HIV DNA in genomic and
extragenomic fractions (Hirt separation and recognition of 2-LTR
circles). Macrophages from all subjects were negative for HIV DNA. On
the contrary, HIV DNA was detected in lymphocytes from 8 out of 9 cases,
the range of DNA copies being 6-650/10(5) cells. The majority of these
individuals exhibited HIV DNA positivity in both genomic and
extragenomic fractions. The ninth subject showing a progressive increase
of CD4 counts was PCR negative for HIV DNA even when 5 x 10(5) cells
were analysed. These findings indicate that there is a good correlation
between viral burden and clinical progression of HIV infection.
DE DNA, Viral/*GENETICS Follow-Up Studies Human HIV/*GENETICS HIV
Seropositivity/CLASSIFICATION/*IMMUNOLOGY *Leukocyte Count Polymerase
Chain Reaction T4 Lymphocytes/*IMMUNOLOGY/MICROBIOLOGY Virus
Replication/GENETICS MEETING ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).