FGFR2-activating mutations disrupt cell polarity to potentiate migration and invasion in endometrial cancer cell models

Stehbens, S. J., Ju, R. J., Adams, M. N., Perry, S., Haass, N. K., Bryant, D. M. and Pollock, P. M. (2018) FGFR2-activating mutations disrupt cell polarity to potentiate migration and invasion in endometrial cancer cell models. Journal of Cell Science, 131, jcs213678. (doi:10.1242/jcs.213678) (PMID:30002137)

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Abstract

Fibroblast growth factor receptors (FGFRs) are a family of receptor tyrosine kinases that control a diverse range of biological processes during development and in adult tissues. We recently reported that somatic FGFR2 mutations are associated with shorter survival in endometrial cancer. However, little is known about how these FGFR2 mutations contribute to endometrial cancer metastasis. Here, we report that expression of the activating mutations FGFR2N550K and FGFR2Y376C in an endometrial cancer cell model induce Golgi fragmentation, and loss of polarity and directional migration. In mutant FGFR2-expressing cells, this was associated with an inability to polarise intracellular pools of FGFR2 towards the front of migrating cells. Such polarization defects were exacerbated in three-dimensional culture, where FGFR2 mutant cells were unable to form well-organised acini, instead undergoing exogenous ligand-independent invasion. Our findings uncover collective cell polarity and invasion as common targets of disease-associated FGFR2 mutations that lead to poor outcome in endometrial cancer patients.

Item Type:Articles
Additional Information:This work was supported by the Cancer Council Queensland (grant number 1083824) to P.M.P.
Keywords:Endometrial cancer, FGFR, invasion, migration, polarity.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Bryant, Dr David
Authors: Stehbens, S. J., Ju, R. J., Adams, M. N., Perry, S., Haass, N. K., Bryant, D. M., and Pollock, P. M.
College/School:College of Medical Veterinary and Life Sciences > Institute of Cancer Sciences
Journal Name:Journal of Cell Science
Publisher:Company of Biologists
ISSN:0021-9533
ISSN (Online):1477-9137
Published Online:12 July 2018
Copyright Holders:Copyright © 2018 The Company of Biologists
First Published:First published in Journal of Cell Science 131:jcs213678
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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