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糖尿病大鼠肾小管PKCα和CTGF表达的动态变化 被引量:8

Dynamic change in expression of PKCα and CTGF in renal tubules of diabetic rats
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摘要 目的:观察糖尿病大鼠肾小管蛋白激酶Cα(PKCα)、结缔组织生长因子(CTGF)和纤维连接蛋白(FN)表达的动态变化,探讨相互间的关系及其在糖尿病肾病发病中的作用。方法:随机将SD大鼠分为正常对照组(A组)、糖尿病2周组(B组)、糖尿病4周组(C组)、糖尿病8周组(D组)、糖尿病12周组(E组)。用免疫组织化学方法检测CTGF、PKCα、FN的表达;用Western印迹法检测CTGF蛋白表达水平;PAS染色,光镜观察肾组织的形态改变;生化方法测定血糖、血肌酐、甘油三酯、总胆固醇及24h尿蛋白。结果:随着糖尿病病程的进展,出现肾小管和间质病变,肾小管表达PKCα和CTGF增多,表达部位一致,与此同步,小管间质FN表达也增加,三者之间呈显著正相关。12周组大鼠血糖高于其余糖尿病组,血脂和血肌酐明显高于正常对照组;蛋白尿十分显著,并且与CTGF和PKCα呈显著正相关。结论:糖尿病状态促进CTGF分泌增多从而使肾小管间质FN等细胞外基质沉积增多,使肾脏肥大和纤维化,而PKCα参与该过程的信号转导。
出处 《中国病理生理杂志》 CAS CSCD 北大核心 2007年第1期183-185,共3页 Chinese Journal of Pathophysiology
基金 贵州省科学技术基金资助项目(No.2000198 No.2004-3004)
关键词 糖尿病肾病 结缔组织生长因子 蛋白激酶C 纤维蛋白类 Diabetic nephropathies Connective tissue growth factor Protein idnase C Fibronectins
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参考文献6

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二级参考文献25

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