人参皂苷Rg1介导PI3K/AKT/FOXO3通路缓解高糖诱导的肾小球系膜细胞氧化应激反应

被引：16
|
作者：
刘文华
望永鼎
翟一飞
靳莉莉
肖丽
李永兵
机构：
[1] 商丘医学高等专科学校护理学院
[2] 河南省肿瘤医院头颈科
[3] 河南大学第一附属医院肾内科
来源：
免疫学杂志 | 2020年 / 04期
关键词：
人参皂苷Rg1; HBZY-1细胞; 凋亡; 氧化应激;
D O I：
10.13431/j.cnki.immunol.j.20200047
中图分类号：
R285.5 [中药实验药理];
学科分类号：
1008 ;
摘要：
目的探究人参皂苷Rg1通过PI3K/AKT/FOXO3通路对高糖诱导的大鼠肾小球系膜细胞氧化应激反应的调控作用。方法首先将细胞分为对照组、HG组、低浓度Rg1组(HG+20 ng/ml Rg1)、中浓度Rg1组(HG+50 ng/ml Rg1)、高浓度Rg1组(HG+100 ng/ml Rg1),通过MTT法、Hoechst 33258染色和Western blot分别检测Rg1对高糖作用下HBZY-1细胞存活率、凋亡率和凋亡相关蛋白Bcl-2、Bax、caspase-3、caspase-9表达的调控作用。其次,通过试剂盒检测Rg1对高糖作用下HBZY-1细胞中氧化应激标志物ROS、MDA、SOD、Gpx浓度的影响。并通过Western blot检测在Rg1作用下,PI3K/AKT/FOXO3通路中各蛋白的磷酸化及表达情况。最后,验证在AKT被抑制的情况下Rg1对高糖作用下HBZY-1细胞的调控作用。结果与对照组相比,HG组中细胞存活率、Bcl-2表达量、SOD、Gpx含量显著下降(P<0.05),而凋亡率、Bax、caspase-3、caspase-9的表达量、ROS、MDA含量显著上升(P<0.05);与HG组相比,低、中、高浓度Rg1组中细胞存活率、Bcl-2表达量、SOD、Gpx含量显著上升(P<0.05),而凋亡率、Bax、caspase-3、caspase-9的表达量、ROS、MDA含量显著下降(P<0.05)。其次,与HG组相比,低、中、高浓度Rg1组细胞中p-PI3K/PI3K、p-AKT/AKT比值显著升高(P<0.05),而FOXO3蛋白表达量显著降低(P<0.05)。而在加入AKT抑制剂之后,与HG组相比,HG+MK-2206组中p-PI3K/PI3K、p-AKT/AKT比值显著下降(P<0.05),而FOXO3蛋白表达量显著升高(P<0.05)。最后,与HG+MK-2206组相比,HG+Rg1+MK-2206组中p-PI3K/PI3K、p-AKT/AKT比值显著升高(P<0.05),而FOXO3蛋白表达量显著降低(P<0.05)。结论人参皂苷Rg1可以通过活化PI3K/AKT/FOXO3通路缓解高糖对HBZY-1细胞的诱导作用,减少HBZY-1细胞的凋亡,并缓解氧化应激反应。
引用
收藏
页码：285 / 291
页数：7
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