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M9650951.TXT
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1996-03-30
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Document 0951
DOCN M9650951
TI Quantitation of human immunodeficiency virus type 1 DNA by two PCR
procedures coupled with enzyme-linked oligosorbent assay.
DT 9505
AU Mallet F; Hebrard C; Livrozet JM; Lees O; Tron F; Touraine JL; Mandrand
B; Unite Mixte de Recherche 103 Centre National de la Recherche;
Scientifique-bioMerieux, Ecole Normale Superieure de Lyon,; France.
SO J Clin Microbiol. 1995 Dec;33(12):3201-8. Unique Identifier : AIDSLINE
MED/96156129
AB Two quantitative PCR methods with our nonisotopic enzyme-linked
oligosorbent assay (ELOSA) in microtiter plate format were developed for
quantitation of human immunodeficiency virus type 1 (HIV-1).
Quantitative competitive PCR (QC-PCR) was based on the coamplification
of the wild-type nef region with a mimic competitive nef gene template
carrying mutations in the capture region. Correlation of wild-type HIV-1
nef DNA to mimic template copy number permitted quantitation of HIV-1
copy numbers in the range of 20 to 2,000 copies per micrograms of DNA.
Internally controlled PCR (IC-PCR) was based on coamplification of the
nef region and the ras gene as an internal endogenous standard.
Correlation to known amounts of HIV-1 DNA permitted quantitation by
IC-PCR of HIV-1 copy numbers in the range of 10 to 2,000 copies per
microgram of DNA. QC- and IC-PCR-ELOSA were performed on a panel of 53
seropositive patients and 12 seronegative controls. The methods showed
similar coefficients of variation below 24%. Quantitations by QC- and
IC-PCR-ELOSA were identical for 77% of patient samples. The copy level
ranged between 443 +/- 156 and 21,453 +/- 13,511 copies per 10(5) CD4
cells for asymptomatic and AIDS patients, respectively. The simplicity
and reliability of QC- and IC-PCR-ELOSA methods make them appropriate
for routine laboratory use in the quantitation of viral and bacterial
DNAs.
DE Acquired Immunodeficiency Syndrome/VIROLOGY Base Sequence Comparative
Study DNA Primers/GENETICS DNA, Viral/*ANALYSIS/*GENETICS
Enzyme-Linked Immunosorbent Assay/*METHODS/STATISTICS & NUMER
DATA/STANDARDS Evaluation Studies Genes, nef Human HIV
Infections/VIROLOGY HIV-1/*GENETICS/*ISOLATION & PURIF Indicators and
Reagents Molecular Sequence Data Polymerase Chain
Reaction/*METHODS/STATISTICS & NUMER DATA Quality Control
Reproducibility of Results JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).