Nkx2.2 antisense RNA overexpression enhanced oligodendrocytic differentiation

被引:71
作者
Tochitani, Shiro [1 ,2 ,3 ]
Hayashizaki, Yoshihide [1 ,2 ,3 ,4 ]
机构
[1] RIKEN, Yokohama Inst, Omics Sci Ctr,Tsurumi Ku, LSA Technol Dev Unit, Yokohama, Kanagawa 2300045, Japan
[2] RIKEN, Yokohama Inst,Frontier Res System, Funct RNA Res Program, RNA Resource Explorat Lab, Kanagawa 2300045, Japan
[3] RIKEN, Yokohama Inst,Genom Sci Ctr, Genome Explorat Res Grp, Tsurumi Ku, Kanagawa 2300045, Japan
[4] RIKEN, Wako Inst, Discovery Res Inst, Genome Sci Lab, Wako, Saitama 3510198, Japan
关键词
non-coding RNA; antisense; differentiation; neural stem cell; Nkx2.2;
D O I
10.1016/j.bbrc.2008.05.127
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
Nkx2.2AS is an endogenous antisense transcript to Nkx2.2 gene, subcellularly located in the cytoplasm. We tested if Nkx2.2AS transcripts have any biological function by regulating transcription level of Nkx2.2 coding gene in the differentiation of neural stem cells. Forced expression of Nkx2.2AS in neural stem cells enhanced induction of differentiation along lineage of oligodendrocytes. Further analyses showed that overexpression of Nkx2.2AS induced modest increase in Nkx2.2 mRNA level, suggesting that the upregulation of Nkx2.2 mRNA level can be a minor cause of enhanced induction of oligodendrocytic differentiation by Nkx2.2AS overexpression. These results together imply that Nkx2.2AS has a certain biological function which is likely to be not only based on the affect on transcription level of Nkx2.2 coding but also on the other mechanisms. gene in cis, but also on the other mechanisms. (c) 2008 Elsevier Inc. All rights reserved.
引用
收藏
页码:691 / 696
页数:6
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