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Stem Cell Res. 2013 Jul;11(1):587-600. doi: 10.1016/j.scr.2013.03.004. Epub 2013 Apr 3.

Neurogenic potential of hESC-derived human radial glia is amplified by human fetal cells.

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1
Department of Neuroscience, University of Connecticut Health Center, Farmington, CT 06030, USA.

Abstract

The efficient production of human neocortical neurons from human embryonic stem cells (hESC) is the primary requirement for studying early stages of human cortical development. We used hESC to obtain radial glial cells (hESC-RG) and then compared them with RG cells isolated from human fetal forebrain. Fate of hESC-RG cells critically depends on intrinsic and extrinsic factors. The expression of Pax6 (intrinsic factor) has a similar neurogenic effect on hESC-RG differentiation as reported for human fetal RG cells. Factors from the microenvironment also play a significant role in determining hESC-RG cell fate. In contrast to control cultures, wherein hESC-RG generate mainly astroglia and far fewer neurons, in co-cultures with human fetal forebrain cells, the reverse was found to be true. This neurogenic effect was partly due to soluble factors from human fetal brain cultures. The detected shift towards neurogenesis has significance for developing future efficient neuro-differentiation protocols. Importantly, we established that hESC-RG cells are similar in many respects to human fetal RG cells, including their proliferative capacity, neurogenic potential, and ability to generate various cortical neuronal sub-types. Unlike fetal RG cells, the hESC-RG cells are readily available and can be standardized, features that have considerable practical advantages in research and clinics.

PMID:
23651582
PMCID:
PMC3705730
DOI:
10.1016/j.scr.2013.03.004
[Indexed for MEDLINE]
Free PMC Article
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