Competition amongst Eph receptors regulates contact inhibition of locomotion and invasiveness in prostate cancer cells

被引：202

作者：

Astin, Jonathan W. ^{[1
]}

Batson, Jennifer ^{[1
]}

Kadir, Shereen ^{[1
]}

Charlet, Jessica ^{[1
]}

Persad, Raj A. ^{[3
]}

Gillatt, David ^{[3
]}

Oxley, Jon D. ^{[4
]}

Nobes, Catherine D. ^{[1
,2
]}

机构：

[1] Univ Bristol, Sch Biochem, Bristol BS8 1TD, Avon, England

[2] Univ Bristol, Sch Physiol & Pharmacol, Bristol BS8 1TD, Avon, England

[3] Southmead Hosp, Bristol Urol Inst, Bristol BS10 5NB, Avon, England

[4] Southmead Hosp, Dept Cellular Pathol, Bristol BS10 5NB, Avon, England

来源：

NATURE CELL BIOLOGY | 2010年 / 12卷 / 12期

基金：

英国惠康基金;

关键词：

MICROARRAY ANALYSIS; TYROSINE KINASE; TUMOR-CELLS; MIGRATION; MOTILITY; EXPRESSION; INDUCTION; CARCINOMA; ROLES; PROLIFERATION;

D O I：

10.1038/ncb2122

中图分类号：

Q2 [细胞生物学];

学科分类号：

071009 ; 090102 ;

摘要：

Metastatic cancer cells typically fail to halt migration on contact with non-cancer cells. This invasiveness is in contrast to normal mesenchymal cells that retract on contact with another cell. Why cancer cells are defective in contact inhibition of locomotion is not understood. Here, we analyse the dynamics of prostate cancer cell lines co-cultured with fibroblasts, and demonstrate that a combinatorial code of Eph receptor activation dictates whether cell migration will be contact inhibited. The unimpeded migration of metastatic PC-3 cells towards fibroblasts is dependent on activation of EphB3 and EphB4 by ephrin-B2, which we show activates Cdc42 and cell migration. Knockdown of EphB3 and EphB4 restores contact inhibition of locomotion to PC-3 cells. Conversely, homotypic collisions between two cancer cells results in contact inhibition of locomotion, mediated by EphA-Rho-Rho kinase (ROCK) signalling. Thus, the migration of cancer cells can switch from restrained to invasive, depending on the Eph-receptor profile of the cancer cell and the reciprocal ephrin ligands expressed by neighbouring cells.

引用

页码：1194 / U175

页数：33

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