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CoCl2 inhibits neural differentiation of retinoic acid-treated embryoid bodies

Paper ID Volume ID Publish Year Pages File Format Full-Text
21652 43233 2008 7 PDF Available
Title
CoCl2 inhibits neural differentiation of retinoic acid-treated embryoid bodies
Abstract

The effects of CoCl2 on retinoic acid (RA)-treated embryoid bodies (EBs) were investigated. Four-day EBs were treated with 5×10−6 M of RA for 4 d, then subjected to attached culturing for 7 d in the presence of CoCl2 at 0, 20, and 100 μM. Differentiation into MAP2- and GFAP-immunopositive cells was inhibited by CoCl2 in a dose-dependent manner. Next, RA-treated EBs were dissociated into single cells and cultured for 7 d at an initial cell density of 1×103/cm2. The number of cells increased in a CoCl2-dose dependent fashion. In cultures with 100 μM of CoCl2, more than 90% of the cells were immunopositive for nestin and nestin-immunopositive cells formed clusters, while there were few cells immunopositive for MAP2 or GFAP. These results suggest that CoCl2 inhibits neural differentiation of RA-treated EB cells and promotes the proliferation of nestin-immunopositive cells, i.e., embryonic stem (ES)-derived neural stem-like cells.

Keywords
hypoxia; CoCl2; embryonic stem cells; retinoic acid; embryoid bodies; neural stem cells; neural differentiation; nestin; hypoxia inducible factors
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CoCl2 inhibits neural differentiation of retinoic acid-treated embryoid bodies
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 106, Issue 2, August 2008, Pages 141–147
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us