Canonical Wnt signaling regulates Mbd3 protein stability during neurogenesis.

ABSTRACT: Acquisition of neural progenitor cell (NPC) homeostasis through balancing self-renewal and differentiation is essential for brain development and function. Among the mechanisms controlling these processes, canonical Wnt signaling and the Mbd3-NuRD complex, with prominent suppressive effects on neurogenesis, have been described as crucial parts of the core regulatory circuit. Here we explored Mbd3 as a downstream element of the canonical Wnt signalosomes. Specifically, dynamic modulation of Wnt signaling through activator (Wnt3a) and inhibitor (DKK1) resulted in parallel alterations in β-catenin and Mbd3 expression patterns. Also, overexpression and depletion of GSK3β respectively promoted and attenuated Mbd3 ubiquitination, highlighting that the canonical Wnt cascade promotes Mbd3 stabilit

SUBMITTER: Mai NTQ 

PROVIDER: S-EPMC12411611 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature