title: IL-10 is involved in the protective effect of dibutyryl cyclic adenosine monophosphate on endotoxin-induced inflammatory liver injury.
abstract: The effects of exogenous cAMP, dibutyryl cAMP (DBcAMP) on LPS-induced liver injury were examined in mice made hypersensitive to LPS by treatment with i.v. injection of Propionibacterium acnes. In vivo administration of DBcAMP significantly protected P. acnes-treated mice from LPS-induced liver injury, including apoptosis of hepatocytes. DBcAMP significantly increased circulating IL-10 level in correlation with suppression of the TNF-alpha level after LPS challenge in P. acnes-treated mice. Treatment with anti-IL-10 mAb abrogated the protective effect of DBcAMP on LPS-induced liver injury. Similar to in vivo findings, addition to DBcAMP to in vitro culture of liver adherent cells from P. acnes-treated mice enhanced IL-10 synthesis after LPS stimulation. These results suggest that the increment in IL-10 production by liver adherent cells is involved in the protective effect of DBcAMP on LPS-induced inflammatory liver injury.
mesh_terms: D000818:Animals; D000911:Antibodies, Monoclonal / Q000276:immunology; D017209:Apoptosis / Q000187:drug effects; D003994:Bucladesine / Q000494:pharmacology / Q000627:therapeutic use*; D056486:Chemical and Drug Induced Liver Injury / Q000473:pathology / Q000517:prevention & control*; D005260:Female; D066298:In Vitro Techniques; D016753:Interleukin-10 / Q000096:biosynthesis*; D008070:Lipopolysaccharides; D051379:Mice; D008810:Mice, Inbred C57BL; D009336:Necrosis / Q000139:chemically induced; D011425:Propionibacterium acnes
chemical_list: D000911:Antibodies, Monoclonal; D008070:Lipopolysaccharides; D016753:Interleukin-10; D003994:Bucladesine