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1994-10-25
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Document 2747
DOCN M94A2747
TI HIV 1 specific LTR- and gag-sequences with essential defects in
seronegative injecting drug users.
DT 9412
AU Dennin RH; Chen Z; Meissner C; Institut fur Medizinische Mikrobiologie,
Medizinische; Universitat, Lubeck, FRG.
SO Int Conf AIDS. 1994 Aug 7-12;10(1):234 (abstract no. PB0367). Unique
Identifier : AIDSLINE ICA10/94369828
AB OBJECTIVE: There are numerous publications dealing controversely with
the phenomenon of anti-HIV 1 seronegative individuals although positive
for HIV 1 specific sequences. We especially aimed to look for HIV 1
specific sequences of the LTR- and gag-region. METHODS: Liver tissues
and small samples of heart punctured blood from eleven injecting drug
users (IDU) at autopsy were available. DNA was extracted from the liver
tissue; serum was used for anti-HIV 1 & 2 assays. For nested PCR we used
proved primers specific for sequences of the LTR- & gag-region and
different combinations of both primer sets bridging the 3'LTR-5'LTR
junction site of the circle structure. RESULTS: Four out of 11 DNA
extracts repeatedly yielded positive signals when PCR with primers of
the gag-region was performed. However, certain primers of the U5' region
failed, although control assays with DNA from acutely HIV 1-infected H9
lymphocytes showed the expected fragments with a sensitivity of 1 to 10
copies/assay. DISCUSSION AND CONCLUSIONS: In 4/11 anti-HIV 1
seronegative individuals at high risk HIV 1 sequences were found with
obvious functional defects. Within the LTR region (an) essential
mutation(s) or even a deletion could be located that is confined to the
U5' stretch.
DE Diagnosis, Differential Genes, gag/*GENETICS Human *HIV
Seronegativity HIV-1/*GENETICS Liver/PATHOLOGY Polymerase Chain
Reaction/METHODS Predictive Value of Tests Repetitive Sequences,
Nucleic Acid/*GENETICS Substance Abuse, Intravenous/*BLOOD MEETING
ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).