Mammalian Par3 regulates progenitor cell asymmetric division via notch signaling in the developing neocortex.
Mammalian Par3 regulates progenitor cell asymmetric division via notch signaling in the developing neocortex.
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DOI:
10.1016/j.neuron.2009.07.004
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发表时间:
2009-07-30
期刊:
影响因子:
16.2
通讯作者:
Shi, Song-Hai
中科院分区:
文献类型:
--
作者:
Bultje, Ronald S.;Castaneda-Castellanos, David R.;Jan, Lily Yen;Jan, Yuh-Nung;Kriegstein, Arnold R.;Shi, Song-Hai
Asymmetric cell division of radial glial progenitors produces neurons while allowing self-renewal; however, little is known about the mechanism that generates asymmetry in daughter cell fate specification. Here we found that mammalian partition defective protein 3 (mPar3), a key cell polarity determinant, exhibits dynamic distribution in radial glial progenitors. While it is enriched at the lateral membrane domain in the ventricular endfeet during interphase, mPar3 becomes dispersed and shows asymmetric localization as cell cycle progresses. Either removal or ectopic expression of mPar3 prevents radial glial progenitors from dividing asymmetrically yet generates different outcomes in daughter cell fate specification. Furthermore, the expression level of mPar3 affects Notch signaling, and manipulations of Notch signaling or Numb expression suppress mPar3 regulation of radial glial cell division and daughter cell fate specification. These results reveal a critical molecular pathway underlying asymmetric cell division of radial glial progenitors in the mammalian neocortex.
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影响因子:
64.5
作者:
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通讯作者:
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DOI:
10.1073/pnas.0308600100
发表时间:
2004-03-02
影响因子:
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作者:
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Huttner, WB
DOI:
10.1073/pnas.0437969100
发表时间:
2003-03-04
影响因子:
11.1
作者:
Haydar, TF;Ang, E;Rakic, P
通讯作者:
Rakic, P