NEDD4-1 protects against ischaemia/reperfusion-induced cardiomyocyte apoptosis via the PI3K/Akt pathway

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• 作者：Wei Hu ; Peng Zhang ; Jun Gu ; Qiang Yu ; Dadong Zhang
• 关键词：NEDD4 ; 1 ; Myocardial ischaemia/reperfusion (I/R) injury ; Apoptosis ; Akt pathway
• 刊名：Apoptosis
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：22
• 期：3
• 页码：437-448
• 全文大小：
• 刊物类别：Medicine
• 刊物主题：Cancer Research; Cell Biology; Oncology; Biochemistry, general; Virology;
• 出版者：Springer US
• ISSN：1573-675X
• 卷排序：22

文摘

Activation of the Akt pathway has been shown to protect the heart from ischaemia/reperfusion (I/R) injury. NEDD4-1 has been shown to positively regulate nuclear trafficking of the activated form of Akt. However, the role of NEDD4-1 in cardiac I/R injury remains to be elucidated. In the present study, Lentiviral vectors were constructed to overexpress or knockdown NEDD4-1 in H9c2 cardiomyocytes subjected to I/R injury or ischemic preconditioning (IPC). The results indicated that NEDD4-1 levels were decreased after I/R and increased after IPC in rat heart tissue and in H9c2 cardiomyocytes. Overexpression of NEDD4-1 activated the Akt pathway and regulated apoptosis-related proteins in H9c2 cardiomyocytes, attenuating SI/R-induced cell apoptosis and caspase 3/7 activities. Furthermore, in vivo overexpression of NEDD4-1 attenuated myocardial apoptosis following myocardial I/R. Our results demonstrated that NEDD4-1 protects the myocardium from I/R induced apoptosis by activating PI3K/Akt signaling.