Detection of HIV-1 DNA and Messenger RNA in Individual Cells by PCR-Driven in Situ Hybridization and Flow Cytometry

• Published in: Science (American Association for the Advancement of Science) 1993-05, Vol.260 (5110), p.976-979
• Main Authors: Patterson, Bruce K., Till, Michele, Otto, Patricia, Goolsby, Charles, Furtado, Manohar R., McBride, Lincoln J., Wolinsky, Steven M.
• Format: Article
• Language: English
• Subjects: AIDS/HIV; Base Sequence; Biological and medical sciences; Cell Line; Cell lines; Cells; Cellular immunity; Cytometry; DNA; DNA probes; DNA, Viral - isolation & purification; Flow Cytometry; Fundamental and applied biological sciences. Psychology; HIV 1; HIV Infections - microbiology; HIV testing; HIV tests; HIV-1 - genetics; HIV-1 - isolation & purification; human immunodeficiency virus; Humans; In situ hybridization; In Situ Hybridization, Fluorescence; Innovations; Leukocytes, Mononuclear - microbiology; Measurement; Messenger RNA; Microbiology; Molecular Sequence Data; Polymerase Chain Reaction; Proviruses - genetics; Replicative cycle, interference, host-virus relations, pathogenicity, miscellaneous strains; RNA, Messenger - isolation & purification; RNA, Viral - isolation & purification; Virology
• ISSN: 0036-8075; 1095-9203
• DOI: 10.1126/science.8493534

Human immunodeficiency virus type-1 (HIV-1) DNA and messenger RNA sequences in both cell lines and blood obtained directly from HIV-1-infected patients were amplified by polymerase chain reaction and hybridized to fluorescein-labeled probes in situ, and the individually labeled cells were analyzed by flow cytometry. After flow cytometric analysis, heterogeneous cell populations were reproducibly resolved into HIV-1-positive and -negative distributions. Fluorescence microscopy showed that the cellular morphology was preserved and intracellular localization of amplified product DNA was maintained. Retention of nonspecific probe was not observed. Analysis of proviral DNA and viral messenger RNA in cells in the blood of HIV-1-infected patients showed that the HIV-1 genome persists in a large reservoir of latently infected cells. With the use of this technique it is now possible to detect single-copy DNA or low-abundance messenger RNA rapidly and reproducibly in a minor subpopulation of cells in suspension at single-cell resolution and to sort those cells for further characterization.