胰岛素样生长因子1对小鼠成骨细胞增殖和碱性磷酸酶活性的影响

被引:39
作者
郭玲 [1 ]
王敏 [2 ]
郝亮 [2 ]
机构
[1] 泸州医学院附属口腔医院修复科
[2] 四川大学华西口腔医学院修复科
关键词
胰岛素样生长因子1; 成骨细胞; 增殖; 碱性磷酸酶; 糖尿病性骨病;
D O I
暂无
中图分类号
R341 [];
学科分类号
摘要
背景:胰岛素样生长因子1是骨形成的调节因子,具有促进有丝分裂、促进成骨等作用。由骨细胞所产生的胰岛素样生长因子1在调节成骨细胞和破骨细胞介导的骨骼重建中起着重要的作用。目的:观察胰岛素样生长因子1作用后,小鼠成骨细胞的增殖和碱性磷酸酶的表达。方法:在体外培养的小鼠成骨细胞中分别加入25,50,100及200μg/L的胰岛素样生长因子1,于培养的第1,2,3,4,5天用Cell CountingKit-8比色法检测细胞增殖率;用流式细胞仪检测细胞的增殖周期和凋亡率;于培养的第3,6,9天应用酶联免疫法检测细胞内碱性磷酸酶活性。结果与结论:胰岛素样生长因子1质量浓度在25~200μg/L时,对小鼠成骨细胞的增殖率有明显的促进作用(P<0.05),且呈明显的浓度依赖效应。当胰岛素样生长因子1质量浓度在200μg/L时,能明显提高细胞S期所占的比例。说明胰岛素样生长因子1可加速细胞的增殖活动,以保证参与骨改建的成骨细胞数量而促进骨组织再生。同时,胰岛素样生长因子1在25~200μg/L时,能显著提高细胞内碱性磷酸酶活性(P<0.05),促进成骨细胞分化。
引用
收藏
页码:6095 / 6098
页数:4
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