Effects of triptolide on cell proliferation and regulation of Ras-MAPKs pathway in synoviocytes induced by tumor necrosis factor / 中国中药杂志
China Journal of Chinese Materia Medica
;
(24): 888-891, 2010.
Article
in Chinese
| WPRIM
| ID: wpr-281693
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the effects of triptolide on proliferation and regulation of ras-MAPKs pathway in human fibroblast-like synoviocytes of rheumatoid arthritis (RA-HFLS) treated with tumor necrosis factor (TNF-alpha).</p><p><b>METHOD</b>RA-HFLS were cultured with TNF-alpha in the presence or absence of variable doses of triptolide (0.28, 2.8, 28, 140 nmol x L(-1)) in vitro. Cell proliferation was evaluated by MTS assay. The phosphorylation status of Ras-MAPKs-associated proteins (Ras, p-P38, p-ERK and p-JNK) were detected by Western blot analysis.</p><p><b>RESULT</b>Triptolide could obviously decrease the RA-HFLS viability in a dose-dependent manner and the inhibition ratio was 0.28%, 5.05%, 30.83% and 43.77% respectively. In addition, triptolide could also suppressed the expression of Ras, p-P38, p-ERK and p-JNK.</p><p><b>CONCLUSION</b>Triptolide has an notable inhibiting effect on proliferation of RA-HFLS and the molecule mechanism is due in part to the direct suppression of abnormal activation of Ras-MAPKs pathway.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pharmacology
/
Phenanthrenes
/
Synovial Membrane
/
Cell Line
/
Gene Expression Regulation
/
Tumor Necrosis Factor-alpha
/
Ras Proteins
/
Mitogen-Activated Protein Kinases
/
MAP Kinase Signaling System
/
Cell Biology
Limits:
Animals
Language:
Chinese
Journal:
China Journal of Chinese Materia Medica
Year:
2010
Type:
Article
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