Journal
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
Volume 388, Issue 2, Pages 247-251Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2009.07.165
Keywords
Oct-3/4; Pseudogene; Neural stem cell; Somatic stem cell
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Funding
- Grants-in-Aid for Scientific Research [21390265] Funding Source: KAKEN
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There remain controversy and disagreement on whether Oct-3/4 is expressed in neural stem cells or not. Although many reports had shown expression of Oct-3/4 in somatic stem and progenitor cells, conditional KO mice of Oct-3/4 in neural stem cells did not show any phenotype. Even pseudogenes are suspected for the false positive results. However, we here report that Oct-3/4 but not pseudogenes is actually expressed in neural stem cells. Western blot analysis with multiple Oct-3/4 antibodies also showed protein expression of Oct-3/4. The subnuclear localization of Oct-3/4 is clearly different from that of P19 cells, suggesting that Oct-3/4 might be inactivated by other mechanisms than transcriptional repression. (C) 2009 Elsevier Inc. All rights reserved.
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