Serra C, Mameli G, Biolchini A, Ziccheddu M, Curreli S, Arru G, Dolei A. Characterization of an HIV type 1 strain with preferential replication in adherent cells.
AIDS Res Hum Retroviruses 2002;
18:641-7. [PMID:
12079559 DOI:
10.1089/088922202760019338]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
HIV-E, emerging from persistently infected HeLa-T4 cells, replicates better in fibroblasts and epithelial cells with respect to the parental, T cell-derived HIV-T. The two viruses share the same env V3 loop, but differ in cellular molecules incorporated on the envelope. Even when similar amounts of virus attachment occurred, HIV-E replicated better than HIV-T in cells from solid tissues, and the response to exogenous Tat was more efficient. This might be related to the long terminal repeat (LTR), because HIV-E has a TAR duplication, and a mutation in the Sp1-II binding site. Epithelial cells deserve further study, because they may be important in vivo for variant selection and latency.
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