Neural stem cells express Oct-3/4

被引:12
作者
Chin, Ji-Hyang [1 ]
Shiwaku, Hiroki [1 ]
Goda, Olga [1 ]
Komuro, Akihiko [1 ]
Okazawa, Hitoshi [1 ]
机构
[1] Tokyo Med & Dent Univ, Dept Neuropathol, Med Res Inst, Bunkyo Ku, Tokyo 1138510, Japan
关键词
Oct-3/4; Pseudogene; Neural stem cell; Somatic stem cell; TRANSCRIPTION FACTOR; MAMMALIAN EMBRYO; OCT4; EXPRESSION; SELF-RENEWAL; POU-DOMAIN; PSEUDOGENES;
D O I
10.1016/j.bbrc.2009.07.165
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
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.
引用
收藏
页码:247 / 251
页数:5
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