PMID- 11981130 OWN - NLM STAT- MEDLINE DCOM- 20020816 LR - 20151119 IS - 0145-6008 (Print) IS - 0145-6008 (Linking) VI - 26 IP - 4 DP - 2002 Apr TI - Effects of in vitro ethanol on tumor necrosis factor-alpha production by blood obtained from simian immunodeficiency virus-infected rhesus macaques. PG - 527-34 AB - BACKGROUND: Tumor necrosis factor-alpha (TNF-alpha), a product of monocytes and macrophages, functions as an important proinflammatory cytokine in the host's response to invading pathogens. METHODS: Because both alcohol abuse and human immunodeficiency virus infection affect TNF-alpha production and are known to frequently coexist, this study examined the effects of simian immunodeficiency virus (SIV) infection and in vitro alcohol exposure on the lipopolysaccharide (LPS)-induced TNF-alpha response in blood obtained from SIV-negative and -positive animals at the asymptomatic and terminal stages of infection. RESULTS: Spontaneous TNF-alpha production was undetectable or low in all groups examined. LPS-induced TNF-alpha production was increased in blood obtained at the asymptomatic (746 +/- 226 pg/ml) and terminal (1945 +/- 1013 pg/ml) stages, compared with that from SIV-negative animals (210 +/- 28 pg/ml), whereas TNF-alpha messenger RNA content did not differ in LPS-stimulated blood obtained from SIV-negative, asymptomatic SIV-positive, or terminal SIV-positive animals. Ethanol treatment suppressed TNF-alpha protein production in all groups, whereas TNF-alpha messenger RNA levels remained unchanged in blood obtained from animals not infected with SIV. CONCLUSIONS: Blood cellular elements remain responsive to LPS stimulation with respect to TNF production even into the acquired immunodeficiency syndrome stage of SIV disease. However, intoxicating doses of alcohol suppress this response, and this may contribute to the immunocompromised state of the host. FAU - Stoltz, David A AU - Stoltz DA AD - Department of Medicine, Section of Pulmonary/Critical Care, Louisiana State University Health Sciences Center, New Orleans, USA. FAU - Nelson, Steve AU - Nelson S FAU - Kolls, Jay K AU - Kolls JK FAU - Zhang, Ping AU - Zhang P FAU - Bohm, Rudolf P AU - Bohm RP FAU - Murphey-Corb, Michael AU - Murphey-Corb M FAU - Bagby, Gregory J AU - Bagby GJ LA - eng GR - AA05470/AA/NIAAA NIH HHS/United States GR - AA09803/AA/NIAAA NIH HHS/United States GR - AA10384/AA/NIAAA NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - England TA - Alcohol Clin Exp Res JT - Alcoholism, clinical and experimental research JID - 7707242 RN - 0 (Central Nervous System Depressants) RN - 0 (RNA, Messenger) RN - 0 (Tumor Necrosis Factor-alpha) RN - 3K9958V90M (Ethanol) SB - IM MH - Animals MH - Blood/*immunology/metabolism/*virology MH - Central Nervous System Depressants/blood MH - Ethanol/*blood/pharmacology MH - Female MH - Macaca mulatta MH - Male MH - RNA, Messenger/biosynthesis MH - Simian Acquired Immunodeficiency Syndrome/*blood/immunology MH - Simian Immunodeficiency Virus/immunology/isolation & purification/*physiology MH - Tumor Necrosis Factor-alpha/*biosynthesis/genetics MH - Up-Regulation/drug effects/immunology EDAT- 2002/05/01 10:00 MHDA- 2002/08/17 10:01 CRDT- 2002/05/01 10:00 PHST- 2002/05/01 10:00 [pubmed] PHST- 2002/08/17 10:01 [medline] PHST- 2002/05/01 10:00 [entrez] PST - ppublish SO - Alcohol Clin Exp Res. 2002 Apr;26(4):527-34.