PAK5-mediated AIF phosphorylation inhibits its nuclear translocation and promotes breast cancer tumorigenesis.
PAK5-mediated AIF phosphorylation inhibits its nuclear translocation and promotes breast cancer tumorigenesis.
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PAK5介导的AIF磷酸化抑制其核转位并促进乳腺癌肿瘤发生
DOI:
10.7150/ijbs.58102
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发表时间:
2021
影响因子:
9.2
通讯作者:
Li F
中科院分区:
文献类型:
--
作者:
Xing Y;Li Y;Hu B;Han F;Zhao X;Zhang H;Li Y;Li D;Li J;Jin F;Li F
Although p21 activated kinase 5 (PAK5) is related to the progression of multiple cancers, its biological function in breast cancer remains unclear. Apoptosis-inducing factor (AIF) is a vital apoptosis factor in mitochondria, which can be released from mitochondria and enter the nucleus, causing caspase-independent apoptosis. In this study, we reveal that PAK5 inhibits apoptosis by preventing the nuclear translocation of AIF. PAK5 inhibits the release of AIF from mitochondria in breast cancer cells by decreasing the mitochondria membrane permeability and increasing the membrane potential. Furthermore, PAK5 phosphorylates AIF at Thr281 site to inhibit the formation of AIF/importin α3 complex, leading to decrease AIF nuclear translocation. Functionally, we demonstrate that PAK5-mediated AIF phosphorylation promotes the proliferation of breast cancer cells and accelerates the growth of breast cancer in vivo. Significantly, PAK5 and AIF expression in breast cancer are positively correlated with poor patient prognosis. PAK5 expression is negatively correlated with AIF nuclear translocation. These results suggest that PAK5-AIF signaling pathway may play an essential role in mammary tumorigenesis, providing a new therapeutic target for the treatment of breast cancer.
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影响因子:
--
作者:
Li Y;Ke Q;Shao Y;Zhu G;Li Y;Geng N;Jin F;Li F
通讯作者:
Li F
影响因子:
14.9
作者:
Shao Y;Li Y;Zhang J;Liu D;Liu F;Zhao Y;Shen T;Li F
通讯作者:
Li F
DOI:
10.2147/chc.s4955
发表时间:
2012-02-01
期刊:
Cell health and cytoskeleton
影响因子:
--
作者:
Natarajan SK;Becker DF
通讯作者:
Becker DF
DOI:
10.1590/s0100-879x2006005000109
发表时间:
2007-08-01
影响因子:
2.3
作者:
Belizário, J.E.;Alves, J.;Sesso, A.
通讯作者:
Sesso, A.
影响因子:
4.8
作者:
Polster, BM;Basañez, G;Nicholls, DG
通讯作者:
Nicholls, DG