糖基化终末产物对大鼠肾系膜细胞胰岛素样生长因子-1表达的影响  被引量:2

Effects of advanced glycation end products on insulin-like growth factor-1 expression in rat mesangial cells

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作  者:苗春生[1] 于晓艳[1] 李才[1] 石艳[1] 

机构地区:[1]吉林大学再生医学科学研究所病理研究室,吉林长春130021

出  处:《吉林大学学报(医学版)》2007年第1期54-56,共3页Journal of Jilin University:Medicine Edition

基  金:国家自然科学基金资助课题(39870312)

摘  要:目的:观察糖基化终末产物(AGEs)对大鼠肾系膜细胞胰岛素样生长因子-1(IGF-1)表达的影响及其与细胞外基质(ECM)成分含量的关系。方法:体外培养正常大鼠肾系膜细胞,分别用不同浓度(0、12.5、25.0、50.0、100.0和200.0mg·L^-1)糖基化牛血清白蛋白(AGEs)处理,相应浓度未经糖化的牛血清白蛋白(BSA)作为对照,ELISA法检测纤维连接蛋白(FN)和Ⅳ型胶原及IGF-1含量。结果:与相应浓度的BSA组比较,12.5~200.0mg·L^-1 AGEs组FN含量明显升高(P〈0.01),100.0~200.0mg·L^-1 AGEs组Ⅳ型胶原含量明显升高(P〈O.01),25.0~100.0mg·L^-1 AGEs组IGF-1蛋白含量明显升高(P〈0.01),200.0mg·L^-1 AGEs组IGF-1含量无明显变化。结论:AGEs引起的细胞外基质积聚可能在一定范围内与IGF-1上调有关。Objective To investigate the effects of advanced glycation end products (AGEs) on insulin-like growth factor -1 (IGF-1) expression in rat mesangial cells and its relationship with extracellular matrix (ECM) accumulation. Methods Rat mesangial ceils were treated with AGEs-modified bovine serum albumin with different concentrations (0, 12.5 , 25.0 , 50.0 , 100.0 and 200.0 mg·L^-1), corresponding concentration native bovine serum albumin (BSA) as control. Fibrinectin, collagen IV and ICF-1 protein contents were detected by ELISA. Results Compared with those of corresponding concentration BSA group, FN contents in 12.5-- 200.0 mg ·L^-1 AGEs group increased significantly (P〈0.01); collagen IV contents in 100.0 200.0 mg·L^-1 AGEs group increased significantly (P〈0.01)~ IGF1 contents in 25.0--100.0 mg·L^-1AGEs group increased significantly (P〈0.01) ; and 200.0 mg ·L^-1 AGEs showed no promotion on IGF-1 expression. Conclusion ECM accumulation induced by AGEs is relevant to IGF-1 in a certain range.

关 键 词:肾小球膜 糖基化终产物 高级 胰岛素样生长因子-Ⅰ 糖尿病肾病 

分 类 号:R587.2[医药卫生—内分泌] R332[医药卫生—内科学]

 

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