An Anti-gp41 Human Monoclonal Antibody That Enhances HIV-1 Infection in the Absence of Complement
- 1 January 1994
- journal article
- research article
- Published by Mary Ann Liebert Inc in AIDS Research and Human Retroviruses
- Vol. 10 (1) , 13-18
- https://doi.org/10.1089/aid.1994.10.13
Abstract
B lymphocytes from tonsillar tissue of an asymptomatic HIV-1-seropositive subject were transformed with Epstein-Barr virus (EBV) and tested for the production of HIV-1-specific antibodies by ELISA, using purified HIV-1SF2. 2F11, a monoclonal antibody derived from a transformed line, is of the IgG1 subclass and recognizes an epitope in the conserved region of the envelope transmembrane glycoprotein gp41, which is expressed on the surface of HIV-infected T cells. The antibody does not mediate the lysis of infected T cells in antibody-dependent cellular cytotoxicity (ADCC) assays and does not neutralize the infectivity of HIV-1SF2 or the homologous isolate HIV-1TT2. 2F11 appears to be the first anti-gp41 human monoclonal antibody that enhances the infectivity of an HIV-1 strain (i.e., SF128A) in the absence of complement.Keywords
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