Projectes per any
Resum
Wnt ligands signal through canonical or non-canonical signaling pathways. Although both routes share common elements, such as the Fz2 receptor, they differ in the co-receptor and in many of the final responses; for instance, whereas canonical Wnts increase β-catenin stability, non-canonical ligands downregulate it. However, both types of ligands stimulate tumor cell invasion. We show here that both the canonical Wnt3a and the non-canonical Wnt5a stimulate Fz2 tyrosine phosphorylation, Fyn binding to Fz2, Fyn activation and Fyn-dependent Stat3 phosphorylation. Wnt3a and Wnt5a require Src for Fz2 tyrosine phosphorylation; Src binds to canonical and non-canonical co-receptors (LRP5/6 and Ror2, respectively) and is activated by Wnt3a and Wnt5a. This Fz2/Fyn/Stat3 branch is incompatible with the classical Fz2/Dvl2 pathway as shown by experiments of over-expression or depletion. Fyn is necessary for transcription of genes associated with invasiveness, such as Snail1, and for activation of cell invasion by both Wnt ligands. Our results extend the knowledge about canonical Wnt pathways, demonstrating additional roles for Fyn in this pathway and describing how this protein kinase is activated by both canonical and non-canonical Wnts.
Idioma original | English |
---|---|
Pàgines (de-a) | 919-935 |
Nombre de pàgines | 17 |
Revista | Cellular and Molecular Life Sciences |
Volum | 77 |
Número | 5 |
DOIs | |
Estat de la publicació | Publicada - 31 de jul. 2019 |
Fingerprint
Navegar pels temes de recerca de 'Src and Fyn define a new signaling cascade activated by canonical and non-canonical Wnt ligands and required for gene transcription and cell invasion'. Junts formen un fingerprint únic.Projectes
- 1 Acabat
-
Análisis de la ruta de FYN/STAT3 estimulada por factores WNT canónicos y no canónicos: mecanismo de acción y relevancia en la invasión de células epiteliales tumorales
Duñach Masjuan, M. (Investigador/a principal)
Ministerio de Economía y Competitividad (MINECO)
1/01/19 → 28/02/22
Projecte: Projectes i Ajuts a la Recerca