期刊
CURRENT MOLECULAR MEDICINE
卷 14, 期 2, 页码 209-220出版社
BENTHAM SCIENCE PUBL LTD
DOI: 10.2174/1566524014666140128105352
关键词
Adhesion; extracellular matrix; Fibronectin; focal adhesion; Integrin; stiffness; Syndecan-4; Wnt
资金
- FONDECYT [1100471]
- Millennium Nucleus for Regenerative Biology from the Iniciativa Cientifica Milenio [P07-011-F]
- Basal
- Beca de Doctorado Nacional
- Beca de Apoyo para la Realizacion de Tesis Doctoral from CONICYT [AT-24100095]
Three decades after the beginning of the study of the Wnt signaling pathway, major contributions have been made to elucidate the molecular mechanisms that regulate this signaling pathway and its role in development, homeostasis and disease. However, there is still a lack of understanding about the relationships between Wnt signaling and cell-extracellular matrix ( ECM) adhesion. Data gathered in the last years is helping to uncover these relationships. Several ECM proteins are able to regulate components of the Wnt pathway during development and disease, and their misregulation leads to changes in Wnt signaling. Fibronectin, a major ECM protein, regulates non-canonical Wnt signaling during embryogenesis in Xenopus and in muscle regeneration in mouse, whereas it modulates canonical Wnt signaling through modulation of beta-catenin. Integrins, which act as Fibronectin receptors, also modulate Wnt activity, and Syndecan-4, a heparan sulphate proteoglycan, is able to regulate canonical and non-canonical Wnt pathways, notably during embryogenesis. Other secreted ECM proteins have been recently associated to the regulation of Wnt signaling, albeit molecular mechanisms are still unclear. The non-canonical Wnt pathway plays a role in the regulation of the ECM assembly, and modulates focal adhesion dynamics through the involvement of Wnt components, whereas Wnt/beta-catenin signaling regulates the expression of genes encoding ECM proteins. This evidence indicates that Wnt signaling and cell-ECM adhesion are two closely related processes, and alterations in this cross-talk might be involved in disease.
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