PMID- 1698820 OWN - NLM STAT- MEDLINE DCOM- 19901121 LR - 20181113 IS - 0021-9738 (Print) IS - 0021-9738 (Linking) VI - 86 IP - 4 DP - 1990 Oct TI - Modulation of interleukin-1 beta RNA in monocytic cells infected with human immunodeficiency virus-1. PG - 1109-14 AB - The effect of HIV-1 infection on cytokine levels was studied in monocytic cells by using Northern blotting analysis. Monoblasts (THP-1, U937) did not express IL-1 beta RNA even if the cells were infected with HIV-1. After exposure to LPS (10 micrograms/ml) and 12-O-tetradecanoylphorbol-13-acetate (TPA, 100 nM) for 12 h, these HIV-1-infected monoblasts accumulated 8-15-fold greater levels of IL-1 beta RNA as compared with their HIV-1-uninfected counterparts that were similarly stimulated. In contrast, levels of RNAs coding for monocyte-colony-stimulating factor (M-CSF) and tumor necrosis factor-alpha (TNF alpha) were elevated less than twofold in the HIV-1-infected cells as compared with HIV-1-uninfected cells after their stimulation with LPS and TPA. Inhibition of new protein synthesis did not block the marked accumulation of IL-1 beta RNA produced by exposure to LPS and TPA in the HIV-1-infected cells. Time-course experiments showed that the maximal levels of IL-1 beta RNA occurred at 12 and 24 h after LPS and TPA stimulation of the HIV-1-infected and uninfected U937 cells, respectively. Studies of stability of RNA using actinomycin D showed that IL-1 beta RNA was equally stable in infected and uninfected U937 cells after their stimulation with TPA and LPS. Taken together, our data show that HIV-1 infection markedly augments IL-1 beta RNA accumulation in stimulated monocytic cells, probably through increasing rate of transcription of IL-1 beta. FAU - Yamato, K AU - Yamato K AD - Department of Medicine, University of California School of Medicine, Los Angeles 90024-1678. FAU - el-Hajjaoui, Z AU - el-Hajjaoui Z FAU - Simon, K AU - Simon K FAU - Koeffler, H P AU - Koeffler HP LA - eng GR - CA 26038/CA/NCI NIH HHS/United States GR - CA 33936/CA/NCI NIH HHS/United States GR - CA 43277/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - J Clin Invest JT - The Journal of clinical investigation JID - 7802877 RN - 0 (Interleukin-1) RN - 0 (Lipopolysaccharides) RN - 63231-63-0 (RNA) RN - NI40JAQ945 (Tetradecanoylphorbol Acetate) SB - IM MH - Cell Line MH - HIV Infections/*immunology MH - HIV-1/*physiology MH - Humans MH - Interleukin-1/biosynthesis/*genetics MH - Lipopolysaccharides/pharmacology MH - Monocytes/metabolism/*microbiology MH - RNA/*analysis MH - Tetradecanoylphorbol Acetate/pharmacology PMC - PMC296839 EDAT- 1990/10/01 00:00 MHDA- 1990/10/01 00:01 PMCR- 1990/10/01 CRDT- 1990/10/01 00:00 PHST- 1990/10/01 00:00 [pubmed] PHST- 1990/10/01 00:01 [medline] PHST- 1990/10/01 00:00 [entrez] PHST- 1990/10/01 00:00 [pmc-release] AID - 10.1172/JCI114815 [doi] PST - ppublish SO - J Clin Invest. 1990 Oct;86(4):1109-14. doi: 10.1172/JCI114815.