期刊
FEBS OPEN BIO
卷 3, 期 -, 页码 78-82出版社
WILEY
DOI: 10.1016/j.fob.2013.01.002
关键词
RhoG; Cell migration; Anoikis resistance; EphA2; Ephexin; RhoGEF
资金
- Ministry of Education, Science, Sports, and Culture of Japan
- Grants-in-Aid for Scientific Research [23370085, 23390019, 12J07194] Funding Source: KAKEN
EphA2 is activated through phosphorylation on serine 897 (S897) by Ala to promote cancer cell motility and invasion, independently of stimulation by ephrin, its ligand. Here we show that S897 phosphorylation of EphA2 strengthens the interaction between EphA2 and Ephexin4, a guanine nucleotide exchange factor for the small GTPase RhoG. S897A mutation of EphA2 abolished the EphA2 Ephexin4-mediated RhoG activation, promotion of cell migration, and resistance to anoikis. Our results suggest that S897-phosphorylated EphA2 recruits Ephexin4 to promote cell migration and anoikis resistance, providing a molecular link between S897 phosphorylation of EphA2 and tumor progression. (C) 2013 The Authors. Published by Elsevier B.V. on behalf of Federation of European Biochemical Societies. All rights reserved.
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