title: [Transplantation of mesenchymal stem cells transfected with hepatocyte growth factor gene improves heart function in rats with heart failure].
abstract: OBJECTIVE
  To investigate the effects of hepatocyte growth factor gene transfected MSCs transplantation on cardiac function and fibrosis in rats heart failure model induced by adriamycin.
  
  
  METHODS
  MSCs were isolated from SD rats by density gradient centrifugation, purified, and transfected with Ad-hHGF. ELISA were used to detect the protein expression of hHGF in these MSCs. Forty SD rats underwent intraperitoneal injection with adriamycin to induce heart failure model. 8 healthy rats served as control, 24 survival rats were randomly divided into 3 groups (n = 8): Rats in Ad-hHGF transfected MSCs group were injected with Ad-hHGF transfected MSCs 2 weeks after the establishment of the model, rats in MSC group injected with suspension of MSCs only, and model group was injected with cold culture fluid. Heart function was evaluated by a physiological recorder 4 weeks after cell transplantation. Myocardial cell morphology and interstitial collagen were studied by electron microscope and were stained by Sirus red. TGF-beta1 was detected by immunohistochemical method.
  
  
  RESULTS
  (1) MSCs could be transfected efficiently by Ad-hHGF, manifested by a higher level of expression in vitro, persisting 14 days at least. (2) Four weeks after the cells transplantion, cardiac necrosis in MSC-hHGF rats was improved when compared with those in the MSCs (P < 0.05) and Model group (P < 0.01). The heart function of the MSC-hHGF rats was greatly improved with an significant increase in LVSP and + dp/dt(max), although LVEDP still highter than that of normal rats. (3) MSC-Ad-hHGF decreased Myocardial collagen content and the level of TGFbeta1 compaired with MSCs transplanted rats (P < 0.01).
  
  
  CONCLUSIONS
  Transplantation of HGF gene transfected MSCs improved heart function, decreased myocardial collagen and the level of TGFbeta1.
authors.affiliation: Departmnent of Cardiology, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China. sujinzi1@yahoo.com.cn
authors.forename: Jin-Zi
authors.initials: JZ
authors.lastname: Su
authors.forename: Wen-Qin
authors.initials: WQ
authors.lastname: Cai
authors.forename: Mei-Ping
authors.initials: MP
authors.lastname: Lin
authors.forename: Mao-Hai
authors.initials: MH
authors.lastname: Lin
authors.forename: Ming
authors.initials: M
authors.lastname: Lin
mesh_terms: D000818:Animals; D004317:Doxorubicin; D005355:Fibrosis / Q000378:metabolism / Q000517:prevention & control; D006333:Heart Failure / Q000139:chemically induced / Q000503:physiopathology / Q000628:therapy*; D017228:Hepatocyte Growth Factor / Q000235:genetics*; D008297:Male; D045164:Mesenchymal Stem Cell Transplantation / Q000379:methods*; D059630:Mesenchymal Stem Cells / Q000378:metabolism*; D009206:Myocardium / Q000473:pathology*; D011897:Random Allocation; D051381:Rats; D017207:Rats, Sprague-Dawley; D014162:Transfection
chemical_list: D017228:Hepatocyte Growth Factor; D004317:Doxorubicin