Increased SSeCKS expression in rat hepatic stellate cells upon activation in vitro and in vivo.
Recent reports suggest that src suppressed c kinase substrates (SSeCKS) are early inflammatory response protein. However, there is only scarce knowledge on the functional role of SSeCKS in liver under conditions of acute inflammation. In the present study, we investigated SSeCKS expression in liver after administration of carbon tetrachloride (CCl4) in rats and in isolated primary hepatic stellate cells (HSCs) upon activation on a plastic dish. We found that SSeCKS mRNA was hardly detectable in healthy liver tissue and further increased in carbon tetrachloride-mediated acute liver failure. SSeCKS protein expression was mainly found in hepatic stellate cells. In vitro, SSeCKS expression in activated rat HSCs was dramatically increased. The upregulation of SSeCKS protein expression in rat HSCs during activation in vitro and in vivo suggested the possibility of SSeCKS, an important part of function of the activated HSCs, perhaps through modulation of liver regeneration or formation of liver fibrosis after various injuries.
Department of General Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, People's Republic of China.
Tiangeng
T
You
Yuanzhi
Y
Fan
Qi
Q
Li
Yong
Y
Gao
Yongkang
Y
Yang
Zhongxin
Z
Zhao
Congjun
C
Wang
D054758:A Kinase Anchor Proteins / Q000096:biosynthesis / Q000235:genetics / Q000378:metabolism*; D000818:Animals; D002251:Carbon Tetrachloride / Q000008:administration & dosage; D018797:Cell Cycle Proteins / Q000096:biosynthesis / Q000235:genetics / Q000378:metabolism*; D002465:Cell Movement / Q000235:genetics; D049109:Cell Proliferation; D002478:Cells, Cultured; D055166:Hepatic Stellate Cells / Q000378:metabolism*; D007249:Inflammation / Q000276:immunology; D008099:Liver / Q000378:metabolism; D008103:Liver Cirrhosis / Q000378:metabolism*; D008115:Liver Regeneration; D034622:RNA Interference; D012333:RNA, Messenger / Q000096:biosynthesis; D034741:RNA, Small Interfering; D051381:Rats; D017207:Rats, Sprague-Dawley; D015854:Up-Regulation
D054758:A Kinase Anchor Proteins; C102361:Akap12 protein, rat; D018797:Cell Cycle Proteins; D012333:RNA, Messenger; D034741:RNA, Small Interfering; D002251:Carbon Tetrachloride