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Chinese Journal of Nephrology ; (12): 227-232, 2009.
Article in Chinese | WPRIM | ID: wpr-381128

ABSTRACT

ObjectiveTo study the effect of astragaloside Ⅳ(AS-Ⅳ) on glucose-induced podocyte adhesion and its possible mechanism. MethodsConditionally immortalized mouse podoeytes were treated with 10, 50, 100 mg/L AS-Ⅳ and with 100 mg/L AS-Ⅳ for 3, 6, 12, 24 h. Cell attachment was measured by fluorescence and centrifugation cell adhesion assays, respectively. Expression of α3β1 integrin mRNA and protein was examined by real-time PCR and Western blot. ResultsHigh glucose induced a significant reduction in adherent podocytes compared to normal glucose group (P<0.05). AS-Ⅳ improved high glucose-induced podocyte adhesion in a time- and dose-dependent manner. Real-time PCR and Western blot analysis revealed that high glucose-induced down-regulation of α3β1 integrin in podocytes were significantly meliorated by AS-Ⅳ (P<0.05). ConclusionAstragaloside Ⅳ improved high glucose-induced podocyte adhesion which may be mediated through α3β1 integrin up-regulation.

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