PMID- 15797225 OWN - NLM STAT- MEDLINE DCOM- 20050901 LR - 20181113 IS - 1091-255X (Print) IS - 1091-255X (Linking) VI - 9 IP - 4 DP - 2005 Apr TI - Fas/FasL play a central role in pancreatitis-induced hepatocyte apoptosis. PG - 467-74; discussion 474-5 AB - Liver injury is a clinical prognostic indicator in acute pancreatitis (AP). We have demonstrated that Kupffer cell-derived FasL mediates liver injury during AP and sought to determine its role in AP-induced hepatocyte apoptosis. AP was induced in National Institutes of Health (NIH) Swiss mice, C57/C57, and Fas-/-, FasL-/- mice by a choline-deficient ethionine-supplement diet. Liver Fas, FasL, p38-mitogen activated phosphokinase (p38-MAPK), poly-ADP ribose polymerase (PARP), and cytochrome C were measured by immunoblotting. Apoptosis was assessed by terminal deoxynucleotidyl transferase biotin-dUTP nick end labeling (TUNEL) and DNA fragmentation (ELISA). AP upregulated liver FasL (4280 +/- 580 vs. 733 +/- 336), Fas (2866 +/- 595 vs. 649 +/- 111), cytochrome C (6980 +/- 237 vs. 903 +/- 156), and PARP (6393 +/- 591 vs. 466 +/- 261) as well as increased TUNEL staining (40 +/- 2 vs. 14 +/- 1) and DNA fragmentation (all P < 0.03 vs. control). In FasL-/- and Fas-/- mice, AP-induced upregulation of p38-MAPK, PARP, and cytochrome C was significantly attenuated (all P < 0.01 compared to C57/C57 control). In addition, AP-induced DNA fragmentation was reduced 60% in Fas-/- and FasL-/- mice (P < 0.01 vs. C57/C57). AP induces apoptosis by transcriptional activation of Fas/FasL. AP-induced apoptosis was significantly reduced in Fas and FasL knockout mice along with downregulation of p38-MAPK, PARP, and cytochrome C, thereby suggesting a central role for Fas/FasL in hepatocyte apoptosis. The manipulation of interactions between Kupffer cell-derived FasL and hepatocytes may have important therapeutic implications. FAU - Gallagher, Scott F AU - Gallagher SF AD - Departments of Surgery, James A. Haley Veterans Affairs Medical Center, University of South Florida Health Sciences Center, Tampa, Florida, USA. FAU - Peng, Yanhua AU - Peng Y FAU - Haines, Krista AU - Haines K FAU - Baksh, Kathryn AU - Baksh K FAU - Epling-Burnette, P K AU - Epling-Burnette PK FAU - Yang, Jun AU - Yang J FAU - Murr, Michel M AU - Murr MM LA - eng GR - R24 AA12885/AA/NIAAA NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PT - Research Support, U.S. Gov't, P.H.S. PL - Netherlands TA - J Gastrointest Surg JT - Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract JID - 9706084 RN - 0 (Fas Ligand Protein) RN - 0 (Fas protein, mouse) RN - 0 (Fasl protein, mouse) RN - 0 (Membrane Glycoproteins) RN - 0 (Receptors, Tumor Necrosis Factor) RN - 0 (fas Receptor) RN - 9007-43-6 (Cytochromes c) RN - EC 2.7.11.24 (p38 Mitogen-Activated Protein Kinases) SB - IM MH - Acute Disease MH - Animals MH - *Apoptosis MH - Blotting, Western MH - Cytochromes c/metabolism MH - Enzyme-Linked Immunosorbent Assay MH - Fas Ligand Protein MH - Female MH - Hepatocytes/*metabolism MH - In Situ Nick-End Labeling MH - Kupffer Cells/metabolism MH - Membrane Glycoproteins/*metabolism MH - Mice MH - Mice, Inbred C57BL MH - Pancreatitis/metabolism/*physiopathology MH - Receptors, Tumor Necrosis Factor/*metabolism MH - Up-Regulation MH - fas Receptor MH - p38 Mitogen-Activated Protein Kinases/metabolism EDAT- 2005/03/31 09:00 MHDA- 2005/09/02 09:00 CRDT- 2005/03/31 09:00 PHST- 2005/03/31 09:00 [pubmed] PHST- 2005/09/02 09:00 [medline] PHST- 2005/03/31 09:00 [entrez] AID - S1091-255X(04)00588-8 [pii] AID - 10.1016/j.gassur.2004.12.008 [doi] PST - ppublish SO - J Gastrointest Surg. 2005 Apr;9(4):467-74; discussion 474-5. doi: 10.1016/j.gassur.2004.12.008.