Calvo, F., Ege, N., Grande-Garcia, A., Hooper, S., Jenkins, R. P., Chaudhry, S. I., Harrington, K., Williamson, P., Moeendarbary, E., Charras, G., Sahai, E. (2013) Mechanotransduction and YAP-dependent matrix remodelling is required for the generation and maintenance of cancer-associated fibroblasts. NATURE CELL BIOLOGY, 15 (6). 637-U441. ISSN 1465-7392

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Abstract

To learn more about cancer-associated fibroblasts (CAFs), we have isolated fibroblasts from different stages of breast cancer progression and analysed their function and gene expression. These analyses reveal that activation of the YAP transcription factor is a signature feature of CAFs. YAP function is required for CAFs to promote matrix stiffening, cancer cell invasion and angiogenesis. Remodelling of the ECM and promotion of cancer cell invasion requires the actomyosin cytoskeleton. YAP regulates the expression of several cytoskeletal regulators, including ANLN and DIAPH3, and controls the protein levels of MYL9 (also known as MLC2). Matrix stiffening further enhances YAP activation, thus establishing a feed-forward self-reinforcing loop that helps to maintain the CAF phenotype. Actomyosin contractility and Src function are required for YAP activation by stiff matrices. Further, transient ROCK inhibition is able to disrupt the feed-forward loop, leading to a long-lasting reversion of the CAF phenotype.

Item Type:	Article
Authors (ICR Faculty only):	Harrington, Kevin
All Authors:	Calvo, F., Ege, N., Grande-Garcia, A., Hooper, S., Jenkins, R. P., Chaudhry, S. I., Harrington, K., Williamson, P., Moeendarbary, E., Charras, G., Sahai, E.
Additional Information:	ISI Document Delivery No.: 156EM Times Cited: 1 Cited Reference Count: 55 Calvo, Fernando Ege, Nil Grande-Garcia, Araceli Hooper, Steven Jenkins, Robert P. Chaudhry, Shahid I. Harrington, Kevin Williamson, Peter Moeendarbary, Emad Charras, Guillaume Sahai, Erik Cancer Research UK; Royal Society Newton Fellowship; Engineering and Physical Sciences Research Council; Royal Society University F.C., N.E., S.H., R.P.J., S.I.C., K.H. and E.S. are financially supported by Cancer Research UK. A.G-G. was financially supported by a Royal Society Newton Fellowship, E.M. is in receipt of a Dorothy Hodgkins Postgraduate Award (DHPA) from the Engineering and Physical Sciences Research Council. G.C. is in receipt of a Royal Society University Research Fellowship. We thank N. Tapon, B. Thompson and laboratory members for help and advice throughout this work. Nature publishing group London
Uncontrolled Keywords:	breast-cancer hippo pathway tensional homeostasis expression signature size-control f-actin protein induction invasion growth
Research teams:	ICR divisions > Cancer Biology > Targeted Therapy ICR divisions > Radiotherapy and Imaging > Targeted Therapy
Depositing User:	Alexander Smithson
Date Deposited:	15 Jul 2013 15:09
Last Modified:	15 Jul 2013 15:09
URI:	http://publications.icr.ac.uk/id/eprint/12567

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