α-catenin SUMOylation increases IκBα stability and inhibits breast cancer progression.
α-catenin SUMOylation increases IκBα stability and inhibits breast cancer progression.
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α-连环蛋白 SUMO 化可增加 I kappa B α 稳定性并抑制乳腺癌进展
DOI:
10.1038/s41389-018-0037-7
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发表时间:
2018-03-13
期刊:
影响因子:
6.2
通讯作者:
Wu H
中科院分区:
文献类型:
--
作者:
Chen H;Xu Z;Li X;Yang Y;Li B;Li Y;Xia K;Wang J;Li S;Wang M;Wu H
α-catenin has been demonstrated to suppress several different types of cancers. Here we demonstrate that α-catenin is modified by SUMO protein, which covalently binds α-catenin at the carboxy terminus at lysine 870. Substitution of lysine 870 with arginine completely abolishes α-catenin SUMOylation. This modification can be removed by SENP1. However, α-catenin SUMOylation does not affect its stability and subcellular localization. In addition, we observed that the SUMOylation-deficient α-catenin mutant has a reduced interaction with IκBα which prevents subsequent ubiquitination of IκBα, and therefore a reduced suppression of expression of the NF-κB target genes TNF-α, IL-8, VEGF, and uPA. In addition, the α-catenin SUMOylation mutant shows impaired suppression of tumor growth. These results demonstrate that SUMOylation at lysine 870 of α-catenin plays a key role in the suppression of the NF-κB pathway, which inhibits breast cancer tumor growth and migration.
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影响因子:
--
作者:
Ao X;Li S;Xu Z;Yang Y;Chen M;Jiang X;Wu H
通讯作者:
Wu H
影响因子:
4
作者:
Escobar, David J.;Desai, Ridhdhi;Gottardi, Cara J.
通讯作者:
Gottardi, Cara J.
影响因子:
4.8
作者:
Giannini, AL;Vivanco, MDM;Kypta, RM
通讯作者:
Kypta, RM
影响因子:
4.8
作者:
Gong, LM;Kamitani, T;Yeh, ETH
通讯作者:
Yeh, ETH
影响因子:
5.7
作者:
Inge, Landon J.;Rajasekaran, Sigrid A.;Rajasekaran, Ayyappan K.
通讯作者:
Rajasekaran, Ayyappan K.