{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,3]],"date-time":"2026-10-03T19:51:22Z","timestamp":1791057082260,"version":"4.1.0"},"reference-count":40,"publisher":"National Academy of Sciences","issue":"12","content-domain":{"domain":["www.pnas.org"],"crossmark-restriction":true},"short-container-title":["Proc. Natl. Acad. Sci. U.S.A."],"published-print":{"date-parts":[[2006,3,21]]},"abstract":"<jats:p>\n                    Implantation of small liver grafts causes liver injury and defective regeneration leading to graft failure. We investigated whether Kupffer cell-dependent TNF-\u03b1 signaling contributes to this poor outcome. Partial 30% liver transplantation was performed in C57BL\/6 wild-type mice (control group), and in three groups with down-regulation of the TNF-\u03b1 pathway: (\n                    <jats:italic>i<\/jats:italic>\n                    ) TNF receptor 1 knockout [TNFR-1(\u2212\/\u2212)] mice, and mice pretreated with (\n                    <jats:italic>ii<\/jats:italic>\n                    ) gadolinium chloride or (\n                    <jats:italic>iii<\/jats:italic>\n                    ) pentoxifylline (PTX). Fifty-percent partial liver transplantation, a model associated with full recovery, and transplantation in IL-6 knockout [IL-6(\u2212\/\u2212)] mice were performed in some experiments. Graft injury, regeneration, portal flow, liver microcirculation, leukocyte adhesion, and animal survival were assessed. Animal survival rates were 14% in the control group vs. 43% in the gadolinium chloride group, 57% for the TNFR-1(\u2212\/\u2212) group, and 86% in the PTX group (\n                    <jats:italic>P<\/jats:italic>\n                    &lt; 0.001). Markers of liver injury were reduced in all treated groups when compared with controls. Each treated group disclosed better portal flow and sinusoid perfusion, decreased leukocyte adherence, particularly in the PTX group. Liver regeneration occurred only in the treated groups. IL-6 and IL-10 levels were dramatically up-regulated (50\u00d7) in the PTX group, and at lower levels in other experimental groups. The protective effect of PTX was lost in IL-6(\u2212\/\u2212) mice and protection was restored by a single dose of r-IL-6. In conclusion, interruption of TNF-\u03b1 signaling or depletion of Kupffer cells improves survival after 30% liver transplantation, reduces liver injury, and enhances regeneration. The superior effects of PTX are mediated by IL-6.\n                  <\/jats:p>","DOI":"10.1073\/pnas.0600499103","type":"journal-article","created":{"date-parts":[[2006,3,13]],"date-time":"2006-03-13T20:49:02Z","timestamp":1142282942000},"page":"4598-4603","update-policy":"https:\/\/doi.org\/10.1073\/pnas.cm10313","source":"Crossref","is-referenced-by-count":79,"title":["Kupffer cell-dependent TNF-\u03b1 signaling mediates injury in the arterialized small-for-size liver transplantation in the mouse"],"prefix":"10.1073","volume":"103","author":[{"given":"Yinghua","family":"Tian","sequence":"first","affiliation":[{"name":"Swiss Hepato-Pancreatico Biliary Center, Departments of *Visceral and Transplantation Surgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wolfram","family":"Jochum","sequence":"additional","affiliation":[{"name":"Pathology, University Hospital of Zurich, Raemistrasse 100, CH-8091 Zurich, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Panco","family":"Georgiev","sequence":"additional","affiliation":[{"name":"Swiss Hepato-Pancreatico Biliary Center, Departments of *Visceral and Transplantation Surgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wolfgang","family":"Moritz","sequence":"additional","affiliation":[{"name":"Swiss Hepato-Pancreatico Biliary Center, Departments of *Visceral and Transplantation Surgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rolf","family":"Graf","sequence":"additional","affiliation":[{"name":"Swiss Hepato-Pancreatico Biliary Center, Departments of *Visceral and Transplantation Surgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pierre-Alain","family":"Clavien","sequence":"additional","affiliation":[{"name":"Swiss Hepato-Pancreatico Biliary Center, Departments of *Visceral and Transplantation Surgery and"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"341","published-online":{"date-parts":[[2006,3,13]]},"reference":[{"key":"e_1_3_3_1_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMra011629"},{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jhep.2005.05.001"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jhep.2005.05.002"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.1097\/00007890-199901270-00024"},{"key":"e_1_3_3_5_2","author":"Dahm F.","year":"2005","unstructured":"F. 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