Inhibitory effect of bicyclol on iNOS expression and NF-?B activation degradation in marcrophages induced by lipopolysaccharides / 中国药理学通报
Chinese Pharmacological Bulletin
;
(12)2003.
Article
in Chinese
| WPRIM
| ID: wpr-560602
ABSTRACT
Aim Inflammation is a common characteristic of liver injury induced by hepatitis virus or other factors.The purpose of this paper was to study the modulating effect of bicyclol,a novel anti-hepatitis drug,on related inflammatory molecules.Methods Various non-cytotoxic concentrations of bicyclol were cultured with macrophage RAW264.7 line or mouse peritoneal macrophages for 1 h,and then added adequate lipopolysaccharide(LPS)to activate macrophages.NO and TNF-? levels in the supernatant of the culture medium were determined with Griess reagent and L929 cell bioassay,respectively.The iNOS expression and NF-?B activation were detected by Western blot method.Results Pretreatment of 0.1~0.5 mmol?L-1 bicyclol significantly inhibited NO release and TNF-? secretion from RAW264.7 cell line and mouse peritoneal macrophages induced by 1 mg?L-1 LPS in concentration dependent manners and 0.5 mmol?L-1 bicyclol also down-regulated LPS(1 mg?L-1)-induced iNOS expression and NF-?B activation in the cells.Conclusion Bicyclol has suppressive effect on related inflammatory molecules iNOS expression and NF-?B activation,indicating that bicyclol possesses anti-inflammatory property.
Full text:
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Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Pharmacological Bulletin
Year:
2003
Type:
Article
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