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Anti-Fas monoclonal antibody is cytocidal to human immunodeficiency virus-infected cells without augmenting viral replication.
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| Author |
Kobayashi, N, et al. |
| Citation Information |
Proc. Natl. Acad. Sci. U.S.A., 87: 9620-4 (1990), : (1990) |
| Related Products |
05-201 |
| Pub Med ID |
1702216 |
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Abstract
A cytotoxic monoclonal antibody (anti-Fas mAb) against the 200-kDa cell surface Fas antigen, which is associated with the tumor necrosis factor (TNF) receptor, was examined for its in vitro activity on human immunodeficiency virus (HIV)-infected cells. It was found that both TNF and anti-Fas mAb selectively killed the chronically HIV-infected cells. Uninfected cells were less sensitive to the antibody than those infected with HIV. When the cells were cultured in the presence of anti-Fas mAb immediately after the HIV infection, the spread of HIV-infected cells was suppressed by the antibody. TNF augmented both the synthesis of HIV-specific mRNA in HIV-infected cells and formation of multinucleated giant cells. In contrast, the anti-Fas mAb did not augment HIV replication or enhance the HIV-induced formation of syncytia. The results indicated that anti-Fas mAb mimicks the cytocidal action of TNF but does not augment HIV replication.
