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1994-10-25
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Document 2745
DOCN M94A2745
TI Quantitation of serum HIV-RNA Using MRT-PCR.
DT 9412
AU Tsukada K; Katayama K; Meguro T; Taki M; Itoh H; Yamada K; Oya A; Basic
Research Div., BML Inc., Saitama, Japan.
SO Int Conf AIDS. 1994 Aug 7-12;10(1):234 (abstract no. PB0365). Unique
Identifier : AIDSLINE ICA10/94369830
AB OBJECTIVE: Immunological and virological methods provide useful
information as predictors of AIDS development in HIV infected patients.
Multycyclic Reverse Transcriptase-Polymerase Chain Reaction (MRT-PCR)
was established to quantitate serum HIV-RNA from HIV infected patients.
Quantitative analysis of HIV-RNA from patient sera was performed in
attempt to predict the prognosis of HIV carriers. MATERIALS AND METHODS:
Serially collected samples from hemophiliac patients and homosexual
patients with HIV infection (AC to AIDS) were analyzed retrospectively.
HIV-RNA was purified from 100 microliters patient sera by AGPC method.
Standard HIV-RNA was made from SP6 promoted HIV gag construct. MRT-PCR
was performed using purified patient RNA and standard RNA samples with
primers for gag. Aliquots of PCR products taken at 5 cycle intervals
were subjected to dot-hybridization. HIV-RNA levels were determined by
comparing the intensity of the patient signal to the standard RNA signal
on the autoradiogram. RESULTS: Lineality was obtained at 10(4)-10(9)
copies/ml at 30 cycles and 10(0)-10(5) copies/ml at 45 cycles. By using
30 and 45 cycles, quantitation of HIV-RNA was possible from 10(0)
copies/ml to 10(9) copies/ml. HIV-RNA was detected from all patient
samples. In AC group, the amount of HIV-RNA was 10(3)-10(5) copies/ml.
In AIDS/ARC group, the amount of HIV-RNA was 10(5)-10(7) copies/ml.
DISCUSSION: The results from MRT-PCR were compatible with the CRT-PCR
while the methodology was simpler and required less specimen volume.
HIV-RNA levels reflected the clinical stage of the patient. Quantitation
of HIV-RNA in serum may be useful as marker for patient prognosis and
monitoring drug response.
DE Acquired Immunodeficiency Syndrome/DIAGNOSIS/MICROBIOLOGY
Autoradiography AIDS-Related Complex/DIAGNOSIS/MICROBIOLOGY
Hemophilia/BLOOD Homosexuality Human HIV/*GENETICS HIV
Infections/*DIAGNOSIS/MICROBIOLOGY Male Polymerase Chain
Reaction/*METHODS Predictive Value of Tests Retrospective Studies
RNA, Viral/*BLOOD MEETING ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).