Effects of peroxisome proliferators-activated receptor γ agonist on proliferation of vascular smooth muscle cells induced by leptin
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    Abstract:

    Objective:To observe the effect of peroxisome proliferator-activated receptor γ agonist(pioglitazone) on leptin-induced proliferation of vascular smooth muscle cells(VSMCs). Methods:By using primary cell culture and MTT colorimetry,the effects of leptin and peroxisome proliferator-activated receptor γ agonist were detected at various concentrations on VSMCs proliferation. Results:Leptin can significantly promote VSMCs proliferation in a dose-and time-dependent manner,whose maximum effect appears at 100 ng/ml and 72 hours(P < 0.05). In additiom,pioglitazone suppressed leptin-induced VSMCs proliferation,especially at 100 μmol/L.(P < 0.05). Conclusion:Leptin can induce the proliferation of VSMCs,and pioglitazone can inhibit this effect. Pioglitazone might be used to treat atherosclerosis, and the mechanism should be involved in that pioglitazone could relieve the leptin resistance.

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王〓芳,马向华,沈〓捷,丁亚琴,袁小清.PPAR-γ激动剂对瘦素刺激的血管平滑肌细胞增殖的影响[J].南京医科大学学报(自然科学版英文版),2008,28(3):300-303.

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  • Received:August 22,2007
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