A catenin-dependent balance between N-cadherin and E-cadherin controls neuroectodermal cell fate choices

Mechanisms of Development
Crystal D RogersMarianne E Bronner

Abstract

Characterizing endogenous protein expression, interaction and function, this study identifies in vivo interactions and competitive balance between N-cadherin and E-cadherin in developing avian (Gallus gallus) neural and neural crest cells. Numerous cadherin proteins, including neural cadherin (Ncad) and epithelial cadherin (Ecad), are expressed in the developing neural plate as well as in neural crest cells as they delaminate from the newly closed neural tube. To clarify independent or coordinate function during development, we examined their expression in the cranial region. The results revealed surprising overlap and distinct localization of Ecad and Ncad in the neural tube. Using a proximity ligation assay and co-immunoprecipitation, we found that Ncad and Ecad formed heterotypic complexes in the developing neural tube, and that modulation of Ncad levels led to reciprocal gain or reduction of Ecad protein, which then alters ectodermal cell fate. Here, we demonstrate that the balance of Ecad and Ncad is dependent upon the availability of β-catenin proteins, and that alteration of either classical cadherin modifies the proportions of the neural crest and neuroectodermal cells that are specified.

Citations

Jan 23, 2020·Journal of Cell Science·Karyn Jourdeuil, Lisa A Taneyhill
Nov 17, 2020·Frontiers in Physiology·Subrajaa ManoharCrystal D Rogers
Dec 11, 2020·Differentiation; Research in Biological Diversity·R S SeelanM M Pisano
Mar 26, 2021·Cell·Silvia Benito-KwiecinskiMadeline A Lancaster
Apr 3, 2021·Cellular and Molecular Life Sciences : CMLS·Karolina PunovuoriSally Lowell
May 4, 2021·The Journal of Cell Biology·Antonio HerreraSebastián Pons

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