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Reactive oxygen species and NADPH oxidase 4 induced by transforming growth factor β1 are the therapeutic targets of polyenylphosphatidylcholine in the suppression of human hepatic stellate cell activation.
MedLine Citation:
PMID:  21318733     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE AND DESIGN: To clarify the molecular mechanism of polyenylphosphatidylcholine (PPC), we examined the involvement of reactive oxygen species (ROS) and NADPH oxidase 4 (Nox4) in human hepatic stellate cells (HSCs). MATERIAL: Using human LX-2 HSC cells, we examined the effects of PPC on expression of α-smooth muscle actin (α-SMA) and collagen 1, generation of ROS, Nox4 expression, p38 activation and cell proliferation, induced by transforming growth factor β1 (TGFβ1). RESULTS: PPC suppressed ROS which are induced by TGFβ1, phosphorylation of p38MAPK, and expression levels of α-SMA and collagen 1 in a dose-dependent manner. Higher concentrations of PPC also suppressed Nox4 levels. CONCLUSION: These results suggest that ROS and Nox4 induced by TGFβ1 are the therapeutic targets of PPC in the suppression of human hepatic stellate cell activation.
Authors:
Remina Ikeda; Kyoko Ishii; Yoshiko Hoshikawa; Junya Azumi; Yuta Arakaki; Toshihiro Yasui; Shizuka Matsuura; Yoshiaki Matsumi; Yohei Kono; Yusuke Mizuta; Akihiro Kurimasa; Ichiro Hisatome; Scott L Friedman; Hironaka Kawasaki; Goshi Shiota
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-2-13
Journal Detail:
Title:  Inflammation research : official journal of the European Histamine Research Society ... [et al.]     Volume:  -     ISSN:  1420-908X     ISO Abbreviation:  -     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-2-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9508160     Medline TA:  Inflamm Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Division of Molecular and Genetic Medicine, Department of Genetic Medicine and Regenerative Therapeutics, Graduate School of Medicine, Tottori University, Yonago, 683-8504, Japan.
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