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Mol Cell Neurosci. 2009 May;41(1):74-84. doi: 10.1016/j.mcn.2009.01.010. Epub 2009 Feb 7.

p66(ShcA) adaptor molecule accelerates ES cell neural induction.

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Centre for Stem Cell Research and Department of Pharmacological Sciences, University of Milan, Via Balzaretti 9, 20133 Milano, Italy.


SHC genes codify for a family of adaptor molecules comprising four genes. Previous data have implicated the Shc(s) molecules in stem cell division and differentiation. Specifically, the p66(ShcA) isoform has been found to contribute to longevity and resistance from oxidative stress. Here we report that p66(ShcA) is up-regulated during in vitro neural induction in embryonic stem cells. p66(ShcA) over-expression in ES cells reduces GSK-3beta kinase activation and increases beta-catenin stabilization and its transcriptional activity. p66(ShcA) over-expression results in ES cells undergoing an anticipated neural induction and accelerated neuronal differentiation. Similar effects are obtained in human ES cells over-expressing p66(ShcA). This study reveals a role for p66(ShcA) in the modulation of Wnt/beta-catenin pathway and in ES cell neuralization which is consistent between mouse and human.

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