SEC-induced activation of ANXA7 GTPase suppresses prostate cancer metastasis.

SEC-induced activation of ANXA7 GTPase suppresses prostate cancer metastasis.
复制标题

SEC诱导的Anxa7 GTPase激活抑制了前列腺癌转移。

DOI:
10.1016/j.canlet.2017.12.008
复制
发表时间:
2018-03-01
期刊:
影响因子:
9.7
通讯作者:
Miao J
Miao J
中科院分区:
医学1区
文献类型:
--
作者:
Liu S;Li X;Lin Z;Su L;Yan S;Zhao B;Miao J

文献摘要

参考文献

被引文献

相似文献

膜联蛋白A7(ANXA 7)是前列腺癌发生和转移的抑制因子。活化ANXA 7 GT3促进前列腺癌细胞凋亡。然而,ANXA 7 GT3在前列腺癌转移中的作用和潜在机制尚未确定。RKIP是一种转移抑制因子,在前列腺癌转移中下调。RKIP与靶蛋白的结合可抑制其相互作用伴侣的激活。然而,RKIP对ANXA 7 GT3活化的影响尚不清楚。在这里,我们报告了通过小分子SEC((S)-乙基1-(3-(4-氯苯氧基)-2-羟丙基)-3-(4-甲氧基苯基)-1H-吡唑-5-羧酸酯)激活ANXA 7 GTd 3有效抑制前列腺癌转移。从机制上讲,活化的ANXA 7促进AMPK磷酸化,导致mTORC 1活性降低,抑制STAT 3核转位,并下调促转移基因,包括CCL 2,APLN和IL 6 ST。相反,RKIP与ANXA 7相互作用,并通过SEC及其下游信号通路损害ANXA 7 GT3的活化。值得注意的是,SEC治疗在体内原位分析中抑制前列腺癌细胞的转移。总之,我们的研究结果提供了一种新的见解,即具有低RKIP表达的前列腺癌的转移是如何通过SEC诱导的ANXA 7 GT3通过AMPK/mTORC 1/STAT 3信号通路的激活来抑制的。
Annexin A7 (ANXA7) is a suppressor of tumorigenesis and metastasis in prostate cancer. Activated ANXA7 GTPase promotes prostate cancer cell apoptosis. However, the role and underlying mechanism of ANXA7 GTPase in prostate cancer metastasis have not been established. RKIP is a metastatic suppressor and downregulated in prostate cancer metastases. The binding of RKIP and its target proteins could inhibit the activation of its interactive partners. However, the effect of RKIP on ANXA7 GTPase activation is not clear. Here, we report that activation of ANXA7 GTPase by a small molecule SEC ((S)-ethyl 1-(3-(4-chlorophenoxy)-2-hydroxypropyl)-3-(4-methoxyphenyl)-1H-pyrazole-5-carboxylate) effectively inhibited prostate cancer metastasis. Mechanistically, activated ANXA7 promoted AMPK phosphorylation, leading to decreased mTORC1 activity, suppressed STAT3 nuclear translocation, and downregulation of pro-metastatic genes, including CCL2, APLN, and IL6ST. Conversely, RKIP interacted with ANXA7 and impaired activation of ANXA7 GTPase by SEC and its downstream signaling pathway. Notably, SEC treatment suppressed metastasis of prostate cancer cells in in vivo orthotopic analysis. Together, our findings provide a novel insight into how metastasis of prostate cancer with low RKIP expression is suppressed by SEC-induced activation of ANXA7 GTPase via the AMPK/mTORC1/STAT3 signaling pathway.
DOI: 10.18632/oncotarget.7646
发表时间: 2016-03-29
期刊: Oncotarget
影响因子: --
作者:
Liu SY;Ge D;Chen LN;Zhao J;Su L;Zhang SL;Miao JY;Zhao BX
通讯作者: Zhao BX
DOI: 10.1016/j.cmet.2016.12.009
发表时间: 2017-02-07
期刊: Cell metabolism
影响因子: 29
作者:
Howell JJ;Hellberg K;Turner M;Talbott G;Kolar MJ;Ross DS;Hoxhaj G;Saghatelian A;Shaw RJ;Manning BD
通讯作者: Manning BD
DOI: 10.1038/emm.2015.70
发表时间: 2015-09-25
影响因子: 12.8
作者:
Farooqi AA;Li Y;Sarkar FH
通讯作者: Sarkar FH
DOI: 10.1152/ajpgi.90493.2008
发表时间: 2008-11-01
影响因子: 4.5
作者:
Han, Song;Wang, Guiyun;Greeley, George H., Jr.
通讯作者: Greeley, George H., Jr.
DOI: 10.1158/0008-5472.can-16-0784
发表时间: 2016-09-15
期刊: Cancer research
影响因子: 11.2
作者:
Häuselmann I;Roblek M;Protsyuk D;Huck V;Knopfova L;Grässle S;Bauer AT;Schneider SW;Borsig L
通讯作者: Borsig L