title: Autologous CD4/CD8 co-culture assay: a physiologically-relevant composite measure of CD8+ T lymphocyte function in HIV-infected persons.
abstract: During HIV-1 infection, the CD8(+) T lymphocyte response is critical to controlling the virus; indeed, the development of AIDS results, in large part, from the eventual failure of this response. The ability to measure the composite CD8(+) T lymphocyte anti-viral activity is, therefore, an essential requirement in the evaluation of immune based therapies and potential vaccines. We report here the details of a reproducible assay that measures the ability of CD8(+) T lymphocytes to suppress viral production by infected autologous CD4(+) T lymphocytes. The assay is not limited to persons with any specific HLA type, and the use of bi-specific antibodies for cell expansion makes the assay feasible in situations where cell numbers may be limiting. The measurement of viral production over time provides a global readout of the CD8(+) T lymphocyte overall function against HIV-1, which can be used for longitudinal assessment of individual HIV-infected persons in order to evaluate therapy, immune reconstitution, and new vaccines.
authors: Department of Pathology & Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095-1732, United States.
authors: Steven R
authors: SR
authors: Fauce
authors: Otto O
authors: OO
authors: Yang
authors: Rita B
authors: RB
authors: Effros
mesh_terms: D016516:CD4-CD8 Ratio; D015496:CD4-Positive T-Lymphocytes / Q000276:immunology / Q000473:pathology*; D018414:CD8-Positive T-Lymphocytes / Q000276:immunology / Q000473:pathology*; D018920:Coculture Techniques / Q000379:methods*; D003602:Cytotoxicity, Immunologic; D015658:HIV Infections / Q000276:immunology* / Q000473:pathology; D015497:HIV-1; D006801:Humans; D007118:Immunoassay / Q000379:methods*; D008213:Lymphocyte Activation; D016176:T-Lymphocyte Subsets / Q000276:immunology / Q000473:pathology
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