PI3K/AKT/Survivin通路在大鼠腹膜纤维化中的作用机制

被引:6
|
作者
王乙安 [1 ]
陈静 [2 ]
赵恒 [2 ]
陆琪 [2 ]
凡碟 [2 ]
王莹 [1 ]
晏玥 [1 ]
朱珠 [1 ]
陈芳 [1 ]
皮成仙 [1 ]
者星炜 [1 ]
机构
[1] 昆明医科大学第一附属医院肾脏内科
[2] 昆明医科大学基础医学院
关键词
腹膜透析; 上皮-间充质转分化; 磷脂酰肌醇3-激酶; 蛋白激酶B; 生存素;
D O I
10.13820/j.cnki.gdyx.20181122.005
中图分类号
R572.2 [腹膜及腹膜后疾病];
学科分类号
1002 ; 100201 ;
摘要
目的探讨磷脂酰肌醇3-激酶(PI3K)/蛋白激酶B(AKT)/生存素(Survivin)信号通路在腹膜间皮细胞上皮-间充质转分化(EMT)中的作用。方法 20只雄性SD大鼠随机分为模型组和对照组,模型组每天给予42. 5 g/L葡萄糖腹膜透析液(100 m L/kg)腹腔注射建立大鼠腹膜间皮细胞EMT模型,对照组在相同条件下予等量的生理盐水腹腔注射。两组大鼠于4周末次腹膜透析后,留取腹膜组织,采用HE和Masson染色,观察腹膜组织形态学变化并测量腹膜组织厚度,采用实时定量PCR、Western印迹和免疫组化等方法检测腹膜组织p-AKT、AKT、Survivin的表达及EMT相关蛋白和mRNA的表达[紧密连接蛋白(ZO-1)、神经-钙黏素(N-cadherin)]。结果成功建立大鼠腹膜间皮细胞EMT模型,与对照组相比,模型组小鼠腹膜组织明显增厚,上皮细胞标志物ZO-1 mRNA及蛋白表达降低,间充质细胞标志物N-cadherin mRNA及蛋白表达升高,p-AKT、Survivin蛋白也明显升高(P <0. 05),AKT蛋白表达无明显变化(P> 0. 05)。结论 PI3K/AKT/Survivin信号通路参与腹膜间皮细胞EMT的发生与发展。
引用
收藏
页码:3165 / 3169
页数:5
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