PMID- 19111613 OWN - NLM STAT- MEDLINE DCOM- 20090406 LR - 20161126 IS - 0006-3002 (Print) IS - 0006-3002 (Linking) VI - 1792 IP - 2 DP - 2009 Feb TI - The role of redox status on chemokine expression in acute pancreatitis. PG - 148-54 LID - 10.1016/j.bbadis.2008.12.002 [doi] AB - This study focused on the involvement of oxidative stress in the mechanisms mediating chemokine production in different cell sources during mild and severe acute pancreatitis (AP) induced by bile-pancreatic duct obstruction (BPDO) and 3.5% NaTc, respectively. N-Acetylcysteine (NAC) was used as antioxidant treatment. Pancreatic glutathione depletion, acinar overexpression of monocyte chemoattractant protein-1 (MCP-1) and cytokine-induced neutrophil chemoattractant (CINC), and activation of p38MAPK, NF-kappaB and STAT3 were found in both AP models. NAC reduced the depletion of glutathione in BPDO- but not in NaTc-induced AP, in which oxidative stress overwhelmed the antioxidant capability of NAC. As a result, inhibition of the acinar chemokine expression and signalling pathways occurs in mild, but not in severe AP. However, MCP-1 and CINC expressions in whole pancreas and plasma chemokine levels were not reduced by NAC, even in BPDO-induced AP, suggesting that in addition to acini, other pancreatic cells produced chemokines by antioxidant resistant mechanisms. The high Il-6 plasma levels found during AP, both in NAC-treated and non-treated rats, pointed out cytokines as activating factors of chemokine expression in non-acinar cells. In conclusion, from early AP oxidant-mediated MAPK, NF-kappaB and STAT3 activation triggers the chemokine expression in acini but not in non-acinar cells. FAU - Yubero, S AU - Yubero S AD - Department of Physiology and Pharmacology, University of Salamanca, 37007 Salamanca, Spain. FAU - Ramudo, L AU - Ramudo L FAU - Manso, M A AU - Manso MA FAU - De Dios, I AU - De Dios I LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20081209 PL - Netherlands TA - Biochim Biophys Acta JT - Biochimica et biophysica acta JID - 0217513 RN - 0 (Chemokines) RN - 0 (Interleukin-6) RN - 0 (NF-kappa B) RN - 0 (RNA, Messenger) RN - EC 2.7.11.24 (p38 Mitogen-Activated Protein Kinases) SB - IM MH - Animals MH - Chemokines/genetics/*metabolism MH - Gene Expression Regulation MH - Interleukin-6/blood MH - Male MH - NF-kappa B/metabolism MH - Oxidation-Reduction MH - Pancreatitis/genetics/*metabolism MH - Phosphorylation MH - RNA, Messenger/genetics MH - Rats MH - Rats, Wistar MH - p38 Mitogen-Activated Protein Kinases/metabolism EDAT- 2008/12/30 09:00 MHDA- 2009/04/07 09:00 CRDT- 2008/12/30 09:00 PHST- 2008/09/12 00:00 [received] PHST- 2008/11/12 00:00 [revised] PHST- 2008/12/02 00:00 [accepted] PHST- 2008/12/30 09:00 [entrez] PHST- 2008/12/30 09:00 [pubmed] PHST- 2009/04/07 09:00 [medline] AID - S0925-4439(08)00250-0 [pii] AID - 10.1016/j.bbadis.2008.12.002 [doi] PST - ppublish SO - Biochim Biophys Acta. 2009 Feb;1792(2):148-54. doi: 10.1016/j.bbadis.2008.12.002. Epub 2008 Dec 9.