Bone marrow mesenchymal stem cells increased expression of urokinase type plasminogen activator and promoted apoptosis of hepatic stellate cells in rats   
Ning Lin, Jiang Hai-xing, Qin Shan-yu, Zhang Jun-hong, Yang Wen, Meng Yun-chao
Chinese Journal of Tissue Engineering Research . 2012, (19): 3427 -3432 .  DOI: 10.3969/j.issn.1673-8225.2012.19.002