JNK是MAPK超家族成员之一,c-Jun是JNK的主要下游因子,是一种受JNK调控的即早基因。JNK和c-Jun是创伤、应激、细胞凋亡相关的调节因子,参与调控多种疾病的发生发展过程。近年来,研究发现,JNK/c-Jun信号通路在IgA肾病、抗GBM肾小球肾炎、...JNK是MAPK超家族成员之一,c-Jun是JNK的主要下游因子,是一种受JNK调控的即早基因。JNK和c-Jun是创伤、应激、细胞凋亡相关的调节因子,参与调控多种疾病的发生发展过程。近年来,研究发现,JNK/c-Jun信号通路在IgA肾病、抗GBM肾小球肾炎、肾纤维化、急性肾损伤等多种肾脏疾病中表现为异常活化,调控着相关肾脏疾病的发生和发展过程。本文就JNK/c-Jun信号通路在肾脏疾病发生发展过程中的调控作用作简要综述。JNK is one of the members of the MAPK superfamily, and c-Jun is the main downstream factor of JNK, which is an early gene regulated by JNK. JNK and c-Jun are regulators related to trauma, stress and apoptosis, and are involved in regulating the occurrence and development of a variety of diseases. In recent years, studies have found that the JNK/c-Jun signaling pathway is abnormally activated in a variety of kidney diseases, such as IgA nephropathy, anti-GBM glomerulonephritis, renal fibrosis, and acute kidney injury, which regulates the occurrence and development of related kidney diseases. This article briefly reviews the regulatory role of JNK/c-Jun signaling pathway in the occurrence and development of kidney diseases.展开更多
文摘JNK是MAPK超家族成员之一,c-Jun是JNK的主要下游因子,是一种受JNK调控的即早基因。JNK和c-Jun是创伤、应激、细胞凋亡相关的调节因子,参与调控多种疾病的发生发展过程。近年来,研究发现,JNK/c-Jun信号通路在IgA肾病、抗GBM肾小球肾炎、肾纤维化、急性肾损伤等多种肾脏疾病中表现为异常活化,调控着相关肾脏疾病的发生和发展过程。本文就JNK/c-Jun信号通路在肾脏疾病发生发展过程中的调控作用作简要综述。JNK is one of the members of the MAPK superfamily, and c-Jun is the main downstream factor of JNK, which is an early gene regulated by JNK. JNK and c-Jun are regulators related to trauma, stress and apoptosis, and are involved in regulating the occurrence and development of a variety of diseases. In recent years, studies have found that the JNK/c-Jun signaling pathway is abnormally activated in a variety of kidney diseases, such as IgA nephropathy, anti-GBM glomerulonephritis, renal fibrosis, and acute kidney injury, which regulates the occurrence and development of related kidney diseases. This article briefly reviews the regulatory role of JNK/c-Jun signaling pathway in the occurrence and development of kidney diseases.
文摘目的 基于c-Jun氨基末端激酶(JNK)-p62/螯合体(SQSTM1)信号通路探讨糖肾煎对2型糖尿病肾病(DN)大鼠足细胞的保护作用。方法 SD大鼠随机分成正常组、DN组、糖肾煎低、中、高[生药5、10、20 g/(kg·d)]剂量组(糖肾煎-L、M、H组)、二甲双胍组[100 mg/(kg·d)]。除正常组外,其余各组通过喂养高脂高糖饲料和腹腔注射链脲佐菌素(STZ)进行DN模型构建。药物干预结束后,检测大鼠血生化指标空腹血糖(FBG)、负荷后2 h血糖(P2 h BG)、血肌酐(SCr)、血尿素氮(BUN)水平;苏木素-伊红(HE)、六胺银(PASM)染色观察肾组织病理学变化;透射电镜(TEM)观察肾小球基底膜损伤和足细胞变化情况;Western印迹检测肾组织中微管相关蛋白1A/1B-轻链(LC)3、p-JNK、JNK、p62/SQSTM1、肾病蛋白(Nephrin)蛋白表达。结果 与正常组比较,DN组FBG、P2 h BG、SCr、BUN水平及p62/SQSTM1蛋白表达明显升高,LC3-Ⅱ、Nephrin蛋白表达和p-JNK/JNK明显降低(P<0.05);光镜下观察到肾小球缩小、管丛系膜明显扩张,并有基底膜增生增厚等现象;TEM下观察到肾小球基底膜增厚、足细胞排列紊乱、形态改变、足突融合等现象。与DN组比较,糖肾煎-L、M、H组和二甲双胍组FBG、P2 h BG、SCr、BUN水平及p62/SQSTM1蛋白表达明显降低,LC3-Ⅱ、Nephrin蛋白表达和p-JNK/JNK明显升高(P<0.05);并且肾小球基底膜增厚、足细胞足突融合等情况均获得一定程度减轻。结论 糖肾煎对2型DN大鼠足细胞具有一定保护作用,可能是通过调控JNK-p62/SQSTM1信号通路,提高足细胞自噬,从而起到肾脏保护功效。