Document 0841 DOCN M9540841 TI Mycoplasma stimulates HIV-1 expression from acutely- and dormantly-infected promonocyte/monoblastoid cell lines. DT 9504 AU Chowdhury MI; Munakata T; Koyanagi Y; Arai S; Yamamoto N; Department of Microbiology, Tokyo Medical and Dental University; School of Medicine, Japan. SO Arch Virol. 1994;139(3-4):431-8. Unique Identifier : AIDSLINE MED/95134098 AB Treatment of a myelo-monocyte cell line, J22HL-60, dormantly infected with human immunodeficiency virus type 1 (HIV-1) with heat-inactivated extracts of Acholeplasma (A) laidlawii (250 micrograms/ml) enhanced virus production more than 45-fold as assessed by p24 viral core antigen assay. When treated with a suboptimal dose of TPA or TNF-alpha, Acholeplasma extracts further augmented virus production in J22HL-60 cells. H7, an inhibitor of protein kinase C(PKC), almost completely abrogated HIV-1-inducing ability of Acholeplasma extracts in the cells. A. laidlawii and several other mycoplasmas also enhanced acute infection of U937 cells as shown by increased virus-positive cells and augmentation of HIV-1 production in the culture supernatant independent of their pathogenicity to humans. DE Acholeplasma laidlawii/*PHYSIOLOGY Cell Line Human HIV Core Protein p24/ANALYSIS HIV-1/*PHYSIOLOGY Isoquinolines/PHARMACOLOGY Macrophages/*VIROLOGY Monocytes/*VIROLOGY Mycoplasma/*PHYSIOLOGY Piperazines/PHARMACOLOGY Protein Kinase C/ANTAGONISTS & INHIB Support, Non-U.S. Gov't Tetradecanoylphorbol Acetate/PHARMACOLOGY Tumor Cells, Cultured Tumor Necrosis Factor/PHARMACOLOGY Virus Replication JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).