Ethanol exerts anti-inflammatory effects in human adipose tissue in vitro.
Moderate alcohol consumption is suggested to be associated with reduced inflammation and morbidity. Human adipose tissue (AT) and obesity is characterised by low-grade inflammation, so the present study wanted to investigate the effects of ethanol on inflammation in human AT in vitro. Subcutaneous human AT was incubated with ethanol [11-88 mM] under non- or LPS-stimulated [50mg/mL] conditions. Protein and mRNA levels of adiponectin, IL-6, IL-8, TNF-alpha, MCP-1, and CD68 were assessed using ELISA and real-time RT-PCR, respectively. Non-stimulated, ethanol incubations up to 24h increased adiponectin release and mRNA expression (p<0.01) and decreased IL-6 release in both short-term [1.5h] (p<0.05) and long-term [24h] (p<0.01) incubations. Ethanol decreased LPS-stimulated IL-6, IL-8, TNF-alpha, and MCP-1 dose-dependently (all p<0.01). Ethanol decreased CD68 mRNA (p<0.001), which correlated with the investigated adipokines (p<0.05) but not adiponectin (p>0.05). In conclusion, ethanol exerts anti-inflammatory effects in human AT, suggesting that ethanol may attenuate whole-body inflammation.
Department of Endocrinology and Metabolism C, Aarhus University Hospital, Aarhus Sygehus, Aarhus C, Denmark.
Anne
A
Wandler
Jens M
JM
Bruun
Maria P
MP
Nielsen
Bjørn
B
Richelsen
D054392:Adipokines / Q000494:pharmacology; D052242:Adiponectin / Q000235:genetics / Q000378:metabolism; D000273:Adipose Tissue / Q000187:drug effects* / Q000378:metabolism / Q000473:pathology*; D000328:Adult; D000893:Anti-Inflammatory Agents / Q000494:pharmacology*; D015703:Antigens, CD / Q000235:genetics / Q000378:metabolism; D015214:Antigens, Differentiation, Myelomonocytic / Q000235:genetics / Q000378:metabolism; D002478:Cells, Cultured; D018932:Chemokine CCL2 / Q000235:genetics / Q000378:metabolism; D004353:Drug Evaluation, Preclinical; D000431:Ethanol / Q000494:pharmacology*; D005260:Female; D006801:Humans; D007249:Inflammation / Q000517:prevention & control*; D015850:Interleukin-6 / Q000235:genetics / Q000378:metabolism; D016209:Interleukin-8 / Q000235:genetics / Q000378:metabolism; D008070:Lipopolysaccharides / Q000494:pharmacology; D008297:Male; D008875:Middle Aged; D012333:RNA, Messenger / Q000187:drug effects / Q000378:metabolism; D014409:Tumor Necrosis Factor-alpha / Q000235:genetics / Q000378:metabolism; D000097382:CD68 Molecule
D054392:Adipokines; D052242:Adiponectin; D000893:Anti-Inflammatory Agents; D015703:Antigens, CD; D015214:Antigens, Differentiation, Myelomonocytic; D018932:Chemokine CCL2; D000431:Ethanol; D015850:Interleukin-6; D016209:Interleukin-8; D008070:Lipopolysaccharides; D012333:RNA, Messenger; D014409:Tumor Necrosis Factor-alpha; C499918:ADIPOQ protein, human; C111835:CCL2 protein, human; C067980:CD68 antigen, human; D000097382:CD68 Molecule; C508600:IL6 protein, human