The Purkinje neuron acts as a central regulator of spatially and functionally distinct cerebellar precursors.
The Purkinje neuron acts as a central regulator of spatially and functionally distinct cerebellar precursors.
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DOI:
10.1016/j.devcel.2013.10.008
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发表时间:
2013-11-11
影响因子:
11.8
通讯作者:
Chiang C
中科院分区:
文献类型:
--
作者:
Fleming JT;He W;Hao C;Ketova T;Pan FC;Wright CC;Litingtung Y;Chiang C
The prospective white matter (PWM) in the nascent cerebellum contains a transient germinal compartment that produces all postnatally-born GABAergic inhibitory interneurons and astrocytes. However, little is known regarding the molecular identity and developmental potential of resident progenitors, or key regulatory niche signals. Here we show that neural stem cell-like primary progenitors (TncYFP-low CD133+) generate intermediate astrocyte (TncYFP-low CD15+) precursors and GABAergic transient amplifying (Ptf1a+) cells. Interestingly, these lineally-related, but functionally divergent progenitors commonly respond to Sonic hedgehog (Shh), and blockade of reception in TNCYFP-low cells attenuates proliferation in the PWM, reducing both intermediate progenitor classes. Furthermore, we show that Shh produced from distant Purkinje neurons maintains the PWM niche independent of its classical role in regulating granule cell precursor proliferation. Collectively, our study indicates Purkinje neurons maintain a bi-directional signaling axis, driving the production of spatially and functionally opposed inhibitory and excitatory interneurons important for motor learning and cognition.
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影响因子:
23.9
作者:
Brownell, Isaac;Guevara, Elizabeth;Bai, C. Brian;Loomis, Cynthia A.;Joyner, Alexandra L.
通讯作者:
Joyner, Alexandra L.
影响因子:
5.3
作者:
Lorenz, Andreas;Deutschmann, Markus;Schueller, Ulrich
通讯作者:
Schueller, Ulrich
影响因子:
64.5
作者:
Huang, Z;Kunes, S
通讯作者:
Kunes, S
影响因子:
2.7
作者:
Grimaldi, Piercesare;Parras, Carlos;Wassef, Marion
通讯作者:
Wassef, Marion
影响因子:
4.6
作者:
Palma, V;Lim, DA;Altaba, ARI
通讯作者:
Altaba, ARI