PMID- 22812678 OWN - NLM STAT- MEDLINE DCOM- 20130115 LR - 20220330 IS - 1557-7465 (Electronic) IS - 1079-9907 (Print) IS - 1079-9907 (Linking) VI - 32 IP - 9 DP - 2012 Sep TI - Ethanol exposure suppresses bone marrow-derived dendritic cell inflammatory responses independent of TLR4 expression. PG - 416-25 LID - 10.1089/jir.2012.0005 [doi] AB - Acute alcohol (ethanol) exposure is linked with increased susceptibility to infection and increased mortality in trauma and burn patients. Dendritic cells (DCs) are central mediators in innate and adaptive immune responses, and they play a role in the presentation of pathogens to adaptive immune cells. We investigated the effects of acute ethanol exposure on bone marrow-derived DC (BM-DC) responses. Total bone marrow cells, obtained from 8 to 10 week old C57BL/6 male mice, were cultured in the presence of granulocyte/monocyte-colony stimulating factor and interleukin (IL)-4 for 7 days. BM-DCs were harvested and treated with increasing doses of ethanol (50, 100, and 250 mM) at the time of, or 3 h before, lipopolysaccharide (LPS). After LPS, supernatants were collected for cytokine measurement, and cells were harvested for flow cytometry. Concurrent acute ethanol exposure and LPS treatment resulted in a dose-dependent suppression of IL-6, IL-12p40, IL-23, and IL-10. In addition, ethanol exposure before LPS dysregulated the IL-12p40/IL-23 balance and more profoundly suppressed IL-6 and IL-10 secretion by BM-DCs, as compared with cells concurrently treated with ethanol and LPS. Ethanol treatment did not affect either toll-like receptor (TLR)4 or TLR2 expression. In summary, our study demonstrates that acute ethanol exposure suppresses BM-DC LPS-induced responses, irrespective of affecting TLR4 or TLR2 expression. FAU - Rendon, Juan L AU - Rendon JL AD - Health Sciences Division, Alcohol Research Program, Loyola University Chicago, Maywood, Illinois 60153, USA. FAU - Janda, Brian A AU - Janda BA FAU - Bianco, Monica E AU - Bianco ME FAU - Choudhry, Mashkoor A AU - Choudhry MA LA - eng GR - R01AA015731/AA/NIAAA NIH HHS/United States GR - F30AA020167/AA/NIAAA NIH HHS/United States GR - T32AA013527/AA/NIAAA NIH HHS/United States GR - R01AA015731-04S1/AA/NIAAA NIH HHS/United States GR - F30 AA020167/AA/NIAAA NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20120719 PL - United States TA - J Interferon Cytokine Res JT - Journal of interferon & cytokine research : the official journal of the International Society for Interferon and Cytokine Research JID - 9507088 RN - 0 (Central Nervous System Depressants) RN - 0 (Lipopolysaccharides) RN - 0 (Tlr2 protein, mouse) RN - 0 (Tlr4 protein, mouse) RN - 0 (Toll-Like Receptor 2) RN - 0 (Toll-Like Receptor 4) RN - 207137-56-2 (Interleukin-4) RN - 3K9958V90M (Ethanol) SB - IM MH - Animals MH - Bone Marrow Cells/immunology/*metabolism/pathology MH - Central Nervous System Depressants/*pharmacology MH - Dendritic Cells/immunology/*metabolism/pathology MH - Ethanol/*pharmacology MH - Gene Expression Regulation/*drug effects/immunology MH - Inflammation/immunology/metabolism/pathology MH - Interleukin-4/immunology/pharmacology MH - Lipopolysaccharides/pharmacology MH - Male MH - Mice MH - Toll-Like Receptor 2/biosynthesis/immunology MH - Toll-Like Receptor 4/*biosynthesis/immunology PMC - PMC3438840 EDAT- 2012/07/21 06:00 MHDA- 2013/01/16 06:00 PMCR- 2013/09/01 CRDT- 2012/07/21 06:00 PHST- 2012/07/21 06:00 [entrez] PHST- 2012/07/21 06:00 [pubmed] PHST- 2013/01/16 06:00 [medline] PHST- 2013/09/01 00:00 [pmc-release] AID - 10.1089/jir.2012.0005 [pii] AID - 10.1089/jir.2012.0005 [doi] PST - ppublish SO - J Interferon Cytokine Res. 2012 Sep;32(9):416-25. doi: 10.1089/jir.2012.0005. Epub 2012 Jul 19.