Effects of pioglitazone on the morphology and the expression of connective tissue growth factor of transforming growth factor beta-induced rat hepatic stellate cells in vitro / 中华肝脏病杂志
Chinese Journal of Hepatology
; (12): 192-195, 2007.
Article
de Zh
| WPRIM
| ID: wpr-285432
Bibliothèque responsable:
WPRO
ABSTRACT
<p><b>OBJECTIVES</b>To observe the effects of pioglitazone on morphological changes and connective tissue growth factor (CTGF) expression of the transforming growth factor beta (TGF b)-induced rat hepatic stellate cells (HSCs) in vitro, and to investigate the anti-fibrotic mechanism of pioglitazone.</p><p><b>METHODS</b>Cultured rat HSCs were divided into a no-treatment control group, a TGF b-treated group, and a TGFb plus different dosage pioglitazone-treated group. The morphological changes of the cultured HSCs were observed. The expression of CTGF was assessed by immunohistochemistry and flow cytometry. The level of collagen type III in the culture supernatant was measured by ELISA.</p><p><b>RESULTS</b>TGFb induced morphological changes, and increased the expressions of CTGF and collagen type III of the HSCs (P less than 0.05). Pioglitazone prevented the TGFb induced morphological changes of the HSCs. The expression of CTGF and the levels of collagen type III in the pioglitazone group were lower than the TGF b-treated group (P less than 0.05). This prevention effect was dose-dependent (P less than 0.05).</p><p><b>CONCLUSION</b>Pioglitazone blocks the excretion of CTGF and collagen type III of cultured HSCs, preventing the development of liver fibrosis.</p>
Texte intégral:
1
Indice:
WPRIM
Sujet Principal:
Pharmacologie
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Cellules cultivées
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Facteur de croissance transformant bêta
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Sécrétions corporelles
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Collagène de type III
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Thiazolidinediones
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Cellules étoilées du foie
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Facteur de croissance du tissu conjonctif
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Métabolisme
Limites du sujet:
Animals
langue:
Zh
Texte intégral:
Chinese Journal of Hepatology
Année:
2007
Type:
Article