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M9610446.TXT
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1996-01-30
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Document 0446
DOCN M9610446
TI Detection of human immunodeficiency virus type 1 proviral DNA by PCR
using an electrochemiluminescence-tagged probe.
DT 9601
AU Schutzbank TE; Smith J; Children's National Medical Center, Washington,
D.C., USA.
SO J Clin Microbiol. 1995 Aug;33(8):2036-41. Unique Identifier : AIDSLINE
MED/96057582
AB We have developed a rapid, pseudohomogeneous assay for the detection of
PCR amplicons, based on the use of electrochemiluminescence generated
from a Tris-bipyridine ruthenium(II) label. PCR amplification of highly
conserved human immunodeficiency virus type 1 (HIV-1) gag gene sequences
was performed with SK38 and SK39 primers, the latter of which was 5'
biotinylated. Post-PCR reaction mixtures were combined with 10(12)
copies of the SK19 probe-Tris-bipyridine ruthenium(II) conjugate,
denatured by heating at 100 degrees C for 5 min, and hybridized at 55
degrees C for an additional 15 min. Hybridization to the biotinylated
strand of the amplified DNA was determined by the addition of
streptavidin-conjugated magnetic particles and analyzed by using an
Origen-1 electrochemiluminescence analyzer. Our results demonstrated a
sensitivity of fewer than five copies of HIV-1 (pre-PCR), by using
either purified plasmid DNA containing one complete copy of the HIV-1
cDNA genome or lysed, proteinase K-treated 8E5 cells as the starting
material. In an evaluation of actual clinical specimens (peripheral
blood monocytes from both healthy and HIV-1-infected children), the
electrochemiluminescent detection assay correlated 100% with both our
standard method (solution hybridization with a radiolabeled probe
followed by polyacrylamide gel electrophoresis [PAGE] and
autoradiography) and a commercial method (Roche Amplicor). The
electrochemiluminescent method was substantially easier to perform than
either the PAGE or microtiter plate assays and was considerable faster
to perform than either of these alternative formats.
DE Chemiluminescence Child Child, Preschool Comparative Study DNA
Probes DNA, Viral/*GENETICS/*ISOLATION & PURIF Electrochemistry
Electrophoresis, Polyacrylamide Gel Evaluation Studies Human HIV
Infections/DIAGNOSIS/VIROLOGY HIV-1/*GENETICS/*ISOLATION & PURIF
Infant Infant, Newborn Polymerase Chain Reaction/*METHODS/STATISTICS &
NUMER DATA Proviruses/*GENETICS/*ISOLATION & PURIF Sensitivity and
Specificity Support, U.S. Gov't, P.H.S. JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).