Genetic evidence that Nkx2.2 and Pdgfra are major determinants of the timing of oligodendrocyte differentiation in the developing CNS
Genetic evidence that Nkx2.2 and Pdgfra are major determinants of the timing of oligodendrocyte differentiation in the developing CNS
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遗传证据表明 Nkx2.2 和 Pdgfra 是发育中中枢神经系统少突胶质细胞分化时间的主要决定因素
DOI:
10.1242/dev.095323
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发表时间:
2014-02
期刊:
影响因子:
4.6
通讯作者:
Yiping Chen
中科院分区:
文献类型:
--
作者:
Mengsheng Qiu;Xiaofeng Zhao;Kang Zheng;Hong Li;Hao Huang;Zunyi Zhang;Teresa Mastracci;Michael Wegner;Yiping Chen
In the central nervous system (CNS), oligodendrocyte maturation and axonal myelination occur on a predictable schedule, but the underlying timing mechanisms are largely unknown. In the present study, we demonstrate that Nkx2.2 homeodomain transcription factor is a key regulator for the timing of oligodendrocyte differentiation during development. Whereas induced expression of Nkx2.2 in early oligodendrocyte precursor cells (OPCs) causes precocious differentiation of oligodendrocytes, conditional ablation of Nkx2.2 temporally delays oligodendrocyte maturation. Moreover, Nkx2.2 can directly bind to the promoter of platelet-derived growth factor receptor alpha (Pdgfra) and repress its gene expression. Genetic ablation of Pdgfra mimics the effect of Nkx2.2 overexpression in accelerating OPC differentiation in the developing spinal cord. Together, our findings strongly suggest that Nkx2.2 functions as a major ‘switch’ to turn off Pdgfra signaling in OPCs and initiate the intrinsic program for oligodendrocyte differentiation.
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影响因子:
10.5
作者:
Stolt, CC;Rehberg, S;Wegner, M
通讯作者:
Wegner, M
影响因子:
3
作者:
Hill JT;Anderson KR;Mastracci TL;Kaestner KH;Sussel L
通讯作者:
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影响因子:
16.2
作者:
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影响因子:
30.8
作者:
Lappe-Siefke, C;Goebbels, S;Nave, KA
通讯作者:
Nave, KA
影响因子:
4.6
作者:
H. Fu;Y. Qi;Min Tan;Jun Cai;H. Takebayashi;M. Nakafuku;W. Richardson;M. Qiu
通讯作者:
H. Fu;Y. Qi;Min Tan;Jun Cai;H. Takebayashi;M. Nakafuku;W. Richardson;M. Qiu