Non-canonical Wnt signalling regulates scarring in biliary disease via the planar cell polarity receptors

Wilson, D. H. et al. (2020) Non-canonical Wnt signalling regulates scarring in biliary disease via the planar cell polarity receptors. Nature Communications, 11, 445. (doi: 10.1038/s41467-020-14283-3) (PMID:31974352) (PMCID:PMC6978415)

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The number of patients diagnosed with chronic bile duct disease is increasing and in most cases these diseases result in chronic ductular scarring, necessitating liver transplantation. The formation of ductular scaring affects liver function; however, scar-generating portal fibroblasts also provide important instructive signals to promote the proliferation and differentiation of biliary epithelial cells. Therefore, understanding whether we can reduce scar formation while maintaining a pro-regenerative microenvironment will be essential in developing treatments for biliary disease. Here, we describe how regenerating biliary epithelial cells express Wnt-Planar Cell Polarity signalling components following bile duct injury and promote the formation of ductular scars by upregulating pro-fibrogenic cytokines and positively regulating collagen-deposition. Inhibiting the production of Wnt-ligands reduces the amount of scar formed around the bile duct, without reducing the development of the pro-regenerative microenvironment required for ductular regeneration, demonstrating that scarring and regeneration can be uncoupled in adult biliary disease and regeneration.

Item Type:Articles
Additional Information:This work was funded by Primary Sclerosing Cholangitis (PSC) Support, The Alan Morement Memorial Foundation (AMMF, The Cholangiocarcinoma Charity) and core funding provided to the MRC Human Genetics Unit, by the Medical Research Council and the Wellcome Trust (207793/Z/17/Z). T.J.K. was partially funded by a Wellcome Trust Intermediate Clinical Fellowship (095898/Z/11/Z). O.S. and A.R. were funded by CRUK core funding to the CRUK Beatson Institute (A17196).
Glasgow Author(s) Enlighten ID:Sansom, Professor Owen
Authors: Wilson, D. H., Jarman, E. J., Mellin, R. P., Wilson, M. L., Waddell, S. H., Tsokkou, P., Younger, N. T., Raven, A., Bhalla, S. R., Noll, A. T. R., Olde Damink, S. W., Schaap, F. G., Chen, P., Bates, D. O., Banales, J. M., Dean, C. H., Henderson, D. J., Sansom, O. J., Kendall, T. J., and Boulter, L.
College/School:College of Medical Veterinary and Life Sciences > School of Cancer Sciences
Journal Name:Nature Communications
Publisher:Nature Research
ISSN (Online):2041-1723
Copyright Holders:Copyright © 2020 The Authors
First Published:First published in Nature Communications 11: 445
Publisher Policy:Reproduced under a Creative Commons License

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