Prior Enrichment of HIV-DNA with Probe-DNA Particles for an Efficient PCR Diagnosis

Bibliographic Information

Other Title
  • プローブDNA結合粒子によるHIV-DNAの特異的な濃縮及びそのPCR検出
  • プローブ DNA ケツゴウ リュウシ ニヨル HIV DNA ノ トクイテキ

Search this article

Abstract

PCR mediated detection of HIV-DNA has been widely used. However, compared with traditional immunological diagnoses, the extraction of DNA is a laborious and time consuming step. We have developed a procedure for the efficient isolation and concentration of HIV-DNA from cell lysates. We report here a novel method by which one can recover HIV-DNA in a small volume (-50μl) of solution from a large volume of crude cell lysate which contains as few as several copies. The method uses the specific hybridization of HIV-DNA to HIV probe-DNA particles. This prior enrichment augmented the sensitivity in the detection of HIV-DNA by PCR, and allows us to make a diagnosis even if the specimen contained an extremely low copy number of HIV-DNA molecules in a large volume, which would have otherwise resulted in false-negative data with the conventional extraction method. The method also enables the examination of 100 individual blood specimens in a combined form. Thus, the application of the present enrichment procedure with HIV probe-DNA particles should reduce the labor and cost of HIV diagnosis, since the HIV positive samples represent a very minor group of people among specimens subjected to clinical laboratory tests and, particularly, among blood samples voluntarily donated to be used for transfusions.

Journal

  • Kansenshogaku Zasshi

    Kansenshogaku Zasshi 69 (9), 957-962, 1995

    The Japanese Association for Infectious Diseases

References(8)*help

See more

Details

Report a problem

Back to top