{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,3]],"date-time":"2026-05-03T06:52:45Z","timestamp":1777791165120,"version":"3.51.4"},"reference-count":0,"publisher":"Georg Thieme Verlag KG","issue":"10","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Endoscopy"],"published-print":{"date-parts":[[2018,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>\n          Background\u2002Mesenchymal stem cells (MSCs) are valuable in regenerative medicine, and MSC culture supernatant (MSC-CS) reportedly inhibits inflammation and fibrosis. We investigated whether colorectal luminal stricture develops after circumferential endoscopic submucosal dissection (ESD) in the colorectum, and whether the development of luminal stricture could be prevented by using MSC-CS enema.<\/jats:p><jats:p>\n          Methods\u2002In the first experiment, we performed circumferential ESD in the rectums or distal colons of pigs (n\u200a=\u200a4 in each group). We sacrificed the pigs on Day\u00a022 and measured the degree of luminal stricture. In the second experiment, we performed circumferential ESD in the rectums of pigs and administered an MSC-CS gel or a control gel enema after ESD for 4\u00a0days. We sacrificed the pigs on Day\u00a08 (n\u200a=\u200a3 in each group) or 22 (n\u200a=\u200a3 in each group) to measure the degree of luminal stricture, and performed histological analysis.<\/jats:p><jats:p>\n          Results\u2002Severe luminal stricture was observed in the rectum but not in the distal colon. Moreover, fiber accumulation in the submucosa and hypertrophy of the muscularis propria were observed in the rectum but not in the distal colon. The degree of luminal stricture in the rectum was significantly lower in the MSC-CS group than in the control group.\u200aFurthermore, MSC-CS attenuated myofibroblast activation and hypertrophy of the muscularis propria on Day\u00a022, and reduced inflammatory cell infiltration on Day\u00a08.<\/jats:p><jats:p>\n          Conclusions\u2002Luminal stricture after ESD developed only in the rectum because of the difference in myofibroblast activation and fiber accumulation. In addition, MSC-CS enema prevented luminal stricture after ESD, possibly by inhibiting the inflammatory reaction and fibrosis.<\/jats:p>","DOI":"10.1055\/a-0584-7262","type":"journal-article","created":{"date-parts":[[2018,4,24]],"date-time":"2018-04-24T22:53:53Z","timestamp":1524610433000},"page":"1001-1016","source":"Crossref","is-referenced-by-count":17,"title":["Preventive effect of mesenchymal stem cell culture supernatant on luminal stricture after endoscopic submucosal dissection in the rectum of pigs"],"prefix":"10.1055","volume":"50","author":[{"given":"Momoko","family":"Tsuda","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology and Hepatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shunsuke","family":"Ohnishi","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology and Hepatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takeshi","family":"Mizushima","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology and Hepatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hidetaka","family":"Hosono","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology and Hepatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kenichi","family":"Yamahara","sequence":"additional","affiliation":[{"name":"Department of Transfusion Medicine and Cell Therapy, Hyogo College of Medicine, Nishinomiya, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marin","family":"Ishikawa","sequence":"additional","affiliation":[{"name":"Division of Endoscopy, Hokkaido University Hospital, Sapporo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Satoshi","family":"Abiko","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology and Hepatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takehiko","family":"Katsurada","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology and Hepatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuichi","family":"Shimizu","sequence":"additional","affiliation":[{"name":"Division of Endoscopy, Hokkaido University Hospital, Sapporo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Naoya","family":"Sakamoto","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology and Hepatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"194","published-online":{"date-parts":[[2018,4,24]]},"container-title":["Endoscopy"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.thieme-connect.de\/products\/ejournals\/pdf\/10.1055\/a-0584-7262.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2018,9,27]],"date-time":"2018-09-27T22:34:00Z","timestamp":1538087640000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.thieme-connect.de\/DOI\/DOI?10.1055\/a-0584-7262"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,4,24]]},"references-count":0,"journal-issue":{"issue":"10","published-online":{"date-parts":[[2018,9,27]]},"published-print":{"date-parts":[[2018,10]]}},"URL":"https:\/\/doi.org\/10.1055\/a-0584-7262","relation":{},"ISSN":["0013-726X","1438-8812"],"issn-type":[{"value":"0013-726X","type":"print"},{"value":"1438-8812","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,4,24]]}}}