PMID- 11310823 OWN - NLM STAT- MEDLINE DCOM- 20010503 LR - 20230216 IS - 0023-6837 (Print) IS - 0023-6837 (Linking) VI - 81 IP - 3 DP - 2001 Mar TI - Ulcerative proctitis, rectal prolapse, and intestinal pseudo-obstruction in transgenic mice overexpressing hepatocyte growth factor/scatter factor. PG - 297-305 AB - Hepatocyte growth factor/scatter factor (HGF/SF) can stimulate growth of gastrointestinal epithelial cells in vitro; however, the physiological role of HGF/SF in the digestive tract is poorly understood. To elucidate this in vivo function, mice were analyzed in which an HGF/SF transgene was overexpressed throughout the digestive tract. Nearly a third of all HGF/SF transgenic mice in this study (28 of 87) died by 6 months of age as a result of sporadic intestinal obstruction of unknown etiology. Enteric ganglia were not overtly affected, indicating that the pathogenesis of this intestinal lesion was different from that operating in Hirschsprung's disease. Transgenic mice also exhibited a rectal inflammatory bowel disease (IBD) with a high incidence of anorectal prolapse. Expression of interleukin-2 was decreased in the transgenic colon, indicating that HGF/SF may influence regulation of the local intestinal immune system within the colon. These results suggest that HGF/SF plays an important role in the development of gastrointestinal paresis and chronic intestinal inflammation. HGF/SF transgenic mice may represent a useful model for the study of molecular mechanisms associated with a subset of IBD and intestinal pseudo-obstruction. Moreover, our data identify previously unappreciated side effects that may be encountered when using HGF/SF as a therapeutic agent. FAU - Takayama, H AU - Takayama H AD - First Department of Internal Medicine, Gunma University School of Medicine, Maebashi, Japan. FAU - Takagi, H AU - Takagi H FAU - Larochelle, W J AU - Larochelle WJ FAU - Kapur, R P AU - Kapur RP FAU - Merlino, G AU - Merlino G LA - eng GR - DK52530/DK/NIDDK NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Lab Invest JT - Laboratory investigation; a journal of technical methods and pathology JID - 0376617 RN - 0 (Interleukin-2) RN - 67256-21-7 (Hepatocyte Growth Factor) RN - EC 2.7.10.1 (Proto-Oncogene Proteins c-kit) SB - IM MH - Animals MH - Colitis, Ulcerative/mortality/*pathology MH - Female MH - Gene Expression MH - Hepatocyte Growth Factor/*genetics MH - Humans MH - Interleukin-2/genetics MH - Intestinal Pseudo-Obstruction/mortality/*pathology MH - Intestine, Large/pathology/physiology MH - Male MH - Mice MH - Mice, Transgenic MH - Proto-Oncogene Proteins c-kit/genetics MH - Rectal Prolapse/mortality/*pathology MH - Survival Rate EDAT- 2001/04/20 10:00 MHDA- 2001/05/05 10:01 CRDT- 2001/04/20 10:00 PHST- 2001/04/20 10:00 [pubmed] PHST- 2001/05/05 10:01 [medline] PHST- 2001/04/20 10:00 [entrez] AID - S0023-6837(22)01996-1 [pii] AID - 10.1038/labinvest.3780238 [doi] PST - ppublish SO - Lab Invest. 2001 Mar;81(3):297-305. doi: 10.1038/labinvest.3780238.