PMID- 23028627 OWN - NLM STAT- MEDLINE DCOM- 20130305 LR - 20240313 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 7 IP - 9 DP - 2012 TI - Human hepatocyte growth factor (hHGF)-modified hepatic oval cells improve liver transplant survival. PG - e44805 LID - 10.1371/journal.pone.0044805 [doi] LID - e44805 AB - Despite progress in the field of immunosuppression, acute rejection is still a common postoperative complication following liver transplantation. This study aims to investigate the capacity of the human hepatocyte growth factor (hHGF) in modifying hepatic oval cells (HOCs) administered simultaneously with orthotopic liver transplantation as a means of improving graft survival. HOCs were activated and isolated using a modified 2-acetylaminofluorene/partial hepatectomy (2-AAF/PH) model in male Lewis rats. A HOC line stably expressing the HGF gene was established following stable transfection of the pBLAST2-hHGF plasmid. Our results demonstrated that hHGF-modified HOCs could efficiently differentiate into hepatocytes and bile duct epithelial cells in vitro. Administration of HOCs at the time of liver transplantation induced a wider distribution of SRY-positive donor cells in liver tissues. Administration of hHGF-HOC at the time of transplantation remarkably prolonged the median survival time and improved liver function for recipients compared to these parameters in the other treatment groups (P<0.05). Moreover, hHGF-HOC administration at the time of liver transplantation significantly suppressed elevation of interleukin-2 (IL-2), tumor necrosis factor-alpha (TNF-alpha) and interferon-gamma (IFN-gamma) levels while increasing the production of IL-10 and TGF-beta1 (P<0.05). HOC or hHGF-HOC administration promoted cell proliferation, reduced cell apoptosis, and decreased liver allograft rejection rates. Furthermore, hHGF-modified HOCs more efficiently reduced acute allograft rejection (P<0.05 versus HOC transplantation only). Our results indicate that the combination of hHGF-modified HOCs with liver transplantation decreased host anti-graft immune responses resulting in a reduction of allograft rejection rates and prolonging graft survival in recipient rats. This suggests that HOC-based cell transplantation therapies can be developed as a means of treating severe liver injuries. FAU - Li, Zhu AU - Li Z AD - Department of Hepatobiliary Surgery, Liaocheng People's Hospital, Liaocheng, Shandong, China. lllllzhu@126.com FAU - Chen, Juan AU - Chen J FAU - Li, Li AU - Li L FAU - Ran, Jiang-Hua AU - Ran JH FAU - Li, Xue-Hua AU - Li XH FAU - Liu, Zhi-Heng AU - Liu ZH FAU - Liu, Gui-Jie AU - Liu GJ FAU - Gao, Yan-Chao AU - Gao YC FAU - Zhang, Xue-Li AU - Zhang XL FAU - Sun, Hiu-Dong AU - Sun HD LA - eng PT - Journal Article DEP - 20120918 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Cytokines) RN - 67256-21-7 (Hepatocyte Growth Factor) SB - IM MH - Animals MH - Apoptosis MH - Cell Proliferation MH - Cytokines/metabolism MH - Graft Rejection/prevention & control MH - *Graft Survival MH - Hepatocyte Growth Factor/*metabolism MH - Humans MH - Liver/*cytology/metabolism/physiology MH - *Liver Transplantation MH - Male MH - Rats MH - *Stem Cell Transplantation MH - Stem Cells/*metabolism MH - Survival Rate PMC - PMC3445612 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2012/10/03 06:00 MHDA- 2013/03/06 06:00 PMCR- 2012/09/18 CRDT- 2012/10/03 06:00 PHST- 2012/04/16 00:00 [received] PHST- 2012/08/14 00:00 [accepted] PHST- 2012/10/03 06:00 [entrez] PHST- 2012/10/03 06:00 [pubmed] PHST- 2013/03/06 06:00 [medline] PHST- 2012/09/18 00:00 [pmc-release] AID - PONE-D-12-10749 [pii] AID - 10.1371/journal.pone.0044805 [doi] PST - ppublish SO - PLoS One. 2012;7(9):e44805. doi: 10.1371/journal.pone.0044805. Epub 2012 Sep 18.