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Folic Acid Supplementation Stimulates Notch Signaling and Cell Proliferation in Embryonic Neural Stem Cells
The present study investigated the effect of folic acid supplementation on the Notch signaling pathway and cell proliferation in rat embryonic neural stem cells (NSCs). The NSCs were isolated from E14–16 rat brain and grown as neurospheres in serum-free suspension culture. Individual cultures were a...
Autores principales: | , , , , |
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Formato: | Texto |
Lenguaje: | English |
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the Society for Free Radical Research Japan
2010
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2935158/ https://www.ncbi.nlm.nih.gov/pubmed/20838574 http://dx.doi.org/10.3164/jcbn.10-47 |
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author | Liu, Huan Huang, Guo-wei Zhang, Xu-mei Ren, Da-lin X. Wilson, John |
author_facet | Liu, Huan Huang, Guo-wei Zhang, Xu-mei Ren, Da-lin X. Wilson, John |
author_sort | Liu, Huan |
collection | PubMed |
description | The present study investigated the effect of folic acid supplementation on the Notch signaling pathway and cell proliferation in rat embryonic neural stem cells (NSCs). The NSCs were isolated from E14–16 rat brain and grown as neurospheres in serum-free suspension culture. Individual cultures were assigned to one of 3 treatment groups that differed according to the concentration of folic acid in the medium: Control (baseline folic acid concentration of 4 mg/l), low folic acid supplementation (4 mg/l above baseline, Folate-L) and high folic acid supplementation (40 mg/l above baseline, Folate-H). NSCs were identified by their expression of immunoreactive nestin and proliferating cells by incorporation of 5'bromo-2'deoxyuridine. Cell proliferation was also assessed by methyl thiazolyl tetrazolium assay. Notch signaling was analyzed by real-time PCR and western blot analyses of the expression of Notch1 and hairy and enhancer of split 5 (Hes5). Supplementation of NSCs with folic acid increased the mRNA and protein expression levels of Notch1 and Hes5. Folic acid supplementation also stimulated NSC proliferation dose-dependently. Embryonic NSCs respond to folic acid supplementation with increased Notch signaling and cell proliferation. This mechanism may mediate the effects of folic acid supplementation on neurogenesis in the embryonic nervous system. |
format | Text |
id | pubmed-2935158 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2010 |
publisher | the Society for Free Radical Research Japan |
record_format | MEDLINE/PubMed |
spelling | pubmed-29351582010-09-13 Folic Acid Supplementation Stimulates Notch Signaling and Cell Proliferation in Embryonic Neural Stem Cells Liu, Huan Huang, Guo-wei Zhang, Xu-mei Ren, Da-lin X. Wilson, John J Clin Biochem Nutr Original Article The present study investigated the effect of folic acid supplementation on the Notch signaling pathway and cell proliferation in rat embryonic neural stem cells (NSCs). The NSCs were isolated from E14–16 rat brain and grown as neurospheres in serum-free suspension culture. Individual cultures were assigned to one of 3 treatment groups that differed according to the concentration of folic acid in the medium: Control (baseline folic acid concentration of 4 mg/l), low folic acid supplementation (4 mg/l above baseline, Folate-L) and high folic acid supplementation (40 mg/l above baseline, Folate-H). NSCs were identified by their expression of immunoreactive nestin and proliferating cells by incorporation of 5'bromo-2'deoxyuridine. Cell proliferation was also assessed by methyl thiazolyl tetrazolium assay. Notch signaling was analyzed by real-time PCR and western blot analyses of the expression of Notch1 and hairy and enhancer of split 5 (Hes5). Supplementation of NSCs with folic acid increased the mRNA and protein expression levels of Notch1 and Hes5. Folic acid supplementation also stimulated NSC proliferation dose-dependently. Embryonic NSCs respond to folic acid supplementation with increased Notch signaling and cell proliferation. This mechanism may mediate the effects of folic acid supplementation on neurogenesis in the embryonic nervous system. the Society for Free Radical Research Japan 2010-09 2010-08-20 /pmc/articles/PMC2935158/ /pubmed/20838574 http://dx.doi.org/10.3164/jcbn.10-47 Text en Copyright © 2010 JCBN This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Liu, Huan Huang, Guo-wei Zhang, Xu-mei Ren, Da-lin X. Wilson, John Folic Acid Supplementation Stimulates Notch Signaling and Cell Proliferation in Embryonic Neural Stem Cells |
title | Folic Acid Supplementation Stimulates Notch Signaling and Cell Proliferation in Embryonic Neural Stem Cells |
title_full | Folic Acid Supplementation Stimulates Notch Signaling and Cell Proliferation in Embryonic Neural Stem Cells |
title_fullStr | Folic Acid Supplementation Stimulates Notch Signaling and Cell Proliferation in Embryonic Neural Stem Cells |
title_full_unstemmed | Folic Acid Supplementation Stimulates Notch Signaling and Cell Proliferation in Embryonic Neural Stem Cells |
title_short | Folic Acid Supplementation Stimulates Notch Signaling and Cell Proliferation in Embryonic Neural Stem Cells |
title_sort | folic acid supplementation stimulates notch signaling and cell proliferation in embryonic neural stem cells |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2935158/ https://www.ncbi.nlm.nih.gov/pubmed/20838574 http://dx.doi.org/10.3164/jcbn.10-47 |
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