Activin induces cortical interneuron identity and differentiation in embryonic stem cell-derived telencephalic neural precursors

Cambray, Serafi, Arber, Charles, Little, Graham, Dougalis, Antonios G., de Paola, Vincenzo, Ungless, Mark A., Li, Meng ORCID: https://orcid.org/0000-0002-4803-4643 and Rodríguez, Tristan A. 2012. Activin induces cortical interneuron identity and differentiation in embryonic stem cell-derived telencephalic neural precursors. Nature Communications 3 , 841. 10.1038/ncomms1817

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Abstract

Understanding the mechanisms underlying neural progenitor differentiation and neuronal fate specification is critical for the use of embryonic stem cells (ESCs) for regenerative medicine. Cortical interneurons are of particular interest for cell transplantation; however, only a limited subset of these neurons can be generated from ESCs. Here we uncover a pivotal role for Activin in regulating the differentiation and identity of telencephalic neural precursors derived from mouse and human ESCs. We show that Activin directly inhibits the mitogenic sonic hedgehog pathway in a Gli3-dependent manner while enhancing retinoic acid signalling, the pro-neurogenic pathway. In addition, we demonstrate that Activin provides telencephalic neural precursors with positional cues that specifically promote the acquisition of a calretinin interneuron fate by controlling the expression of genes that regulate cortical interneuron identity. This work demonstrates a novel means for regulating neuronal differentiation and specification of subtype identity.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Medicine Neuroscience and Mental Health Research Institute (NMHRI)
Subjects:	Q Science > QH Natural history > QH426 Genetics R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Publisher:	Nature Publishing Group
ISSN:	2041-1723
Last Modified:	24 Oct 2022 10:57
URI:	https://orca.cardiff.ac.uk/id/eprint/46491

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