Document 0786 DOCN M9550786 TI HIV-1 expression induced by anti-cancer agents in latently HIV-1-infected ACH2 cells. DT 9505 AU O'Brien MC; Ueno T; Jahan N; Zajac-Kaye M; Mitsuya H; Experimental Retrovirology Section, National Cancer Institute,; Bethesda, Maryland 20892. SO Biochem Biophys Res Commun. 1995 Feb 27;207(3):903-9. Unique Identifier : AIDSLINE MED/95169150 AB The expression of human immunodeficiency virus type 1 (HIV-1) in infected cells is induced (or enhanced) by a number of agents including phorbol myristate acetate (PMA), phytohemagglutinin (PHA), certain infectious agents, certain cytokines, and ultraviolet light. ACH2 cells represent latently HIV-1-infected T-cells, which produce only a low level of HIV-1 in vitro. We found that various anti-cancer agents including 5-azacytidine (5-AZC), 5-fluorouracil (5-FU), methotrexate, cytosine arabinoside, and vinblastine potentiated the expression of HIV-1 in ACH2 cells. There was no evidence of altered DNA methylation patterns in ACH2 cells cultured with 5-FU unlike with 5-AZC. The NF-kappa B binding activity was found to be enhanced in ACH2 cells exposed to 5-FU (but not in those exposed to 5-AZC) as assessed by the mobility shift assay using an oligonucleotide containing two NF-kappa B binding sites. These data suggest that the use of certain anti-cancer agents may induce (or enhance) the expression of HIV-1. DE Antineoplastic Agents/*PHARMACOLOGY Azacytidine/PHARMACOLOGY Base Sequence Cell Line Cell Survival Cytarabine/PHARMACOLOGY CD4-Positive T-Lymphocytes/*VIROLOGY DNA/METABOLISM Fluorouracil/PHARMACOLOGY HIV-1/*GROWTH & DEVELOPMENT Methotrexate/PHARMACOLOGY Methylation Molecular Sequence Data NF-kappa B/METABOLISM Phytohemagglutinins/PHARMACOLOGY Tetradecanoylphorbol Acetate/PHARMACOLOGY Vinblastine/PHARMACOLOGY JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).