[Serapharmacological effect of fuzheng huayu 319 Decoction on expression of type I collagen and transforming growth factor beta 1 in hepatic stellate cells].
OBJECTIVE
To investigate the main serapharmacological mechanism of antifibrotic action of Fuzheng Huayu 319 Decoction (FHD) at cellular and molecular level.


METHODS
Hepatic stellate cells (HSC) were isolated from the normal rats and subcultured. Normal rats were medicated with FHD and their blood serum collected to prepare the medicated serum, which was incubated with the subcultured HSC. Then, the extra- and intracellular collagen synthetic rates were assayed with collagenase digestion method, type I collagen content in the medium measured with ELISA, transforming growth factor beta 1 (TGF beta 1) protein production semiquantified by immunocytochemistry stain and image analysis system, the gene expressions of type I procollagen and TGF beta 1 analyzed by RT-PCR.


RESULTS
FHD medicated serum could obviously inhibit the extra- and intracellular collagen synthetic rates, decreased type I procollagen mRNA expression and its secretion, downregulate TGF beta 1 mRNA and its protein expression.


CONCLUSIONS
FHD could inhibit HSC activation markedly, the main mechanism of its antifibrotic action may be the medicated serum inhibition on type I procollagen and TGF beta 1 gene expression.
Liu
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C
Institute of Liver Disease, Shanghai University of TCM, Shanghai (200032).
Wang
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X
Liu
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P
D000818:Animals; D002478:Cells, Cultured; D003094:Collagen / Q000096:biosynthesis*; D003470:Culture Media; D004365:Drugs, Chinese Herbal / Q000494:pharmacology*; D022781:Hepatocytes / Q000166:cytology / Q000378:metabolism*; D008297:Male; D012333:RNA, Messenger / Q000096:biosynthesis / Q000235:genetics; D051381:Rats; D017208:Rats, Wistar; D016212:Transforming Growth Factor beta / Q000096:biosynthesis* / Q000235:genetics
D003470:Culture Media; D004365:Drugs, Chinese Herbal; D012333:RNA, Messenger; D016212:Transforming Growth Factor beta; D003094:Collagen