Corticospinal Circuits from the Sensory and Motor Cortices Differentially Regulate Skilled Movements through Distinct Spinal Interneurons.
Corticospinal Circuits from the Sensory and Motor Cortices Differentially Regulate Skilled Movements through Distinct Spinal Interneurons.
复制标题
DOI:
10.1016/j.celrep.2018.03.137
复制
发表时间:
2018-05-01
期刊:
影响因子:
8.8
通讯作者:
Yoshida Y
中科院分区:
文献类型:
--
作者:
Ueno M;Nakamura Y;Li J;Gu Z;Niehaus J;Maezawa M;Crone SA;Goulding M;Baccei ML;Yoshida Y
Little is known about the organizational and functional connectivity of the corticospinal (CS) circuits that are essential for voluntary movement. Here, we map the connectivity between CS neurons in the forelimb motor and sensory cortices and various spinal interneurons, demonstrating that distinct CS-interneuron circuits control specific aspects of skilled movements. CS fibers originating in the mouse motor cortex directly synapse onto premotor interneurons, including those expressing Chx10. Lesions of the motor cortex or silencing of spinal Chx10+ interneurons produces deficits in skilled reaching. In contrast, CS neurons in the sensory cortex do not synapse directly onto premotor inter-neurons, and they preferentially connect to Vglut3+ spinal interneurons. Lesions to the sensory cortex or inhibition of Vglut3+ interneurons cause deficits in food pellet release movements in goal-oriented tasks. These findings reveal that CS neurons in the motor and sensory cortices differentially control skilled movements through distinct CS-spinal inter-neuron circuits. Ueno et al. generate a detailed connectivity map between corticospinal (CS) neurons in the motor and sensory cortices and spinal interneurons. The CS circuits originating from the motor and sensory cortices connect to distinct subpopulations of spinal interneurons to control discrete aspects of skilled movements.
登录
查看更多内容
影响因子:
16.2
作者:
Arenkiel, Benjamin R.;Peca, Joao;Feng, Guoping
通讯作者:
Feng, Guoping
影响因子:
48
作者:
Ayling, Oliver G. S.;Harrison, Thomas C.;Murphy, Timothy H.
通讯作者:
Murphy, Timothy H.
影响因子:
5.3
作者:
Brown, Andrew R.;Teskey, G. Campbell
通讯作者:
Teskey, G. Campbell
影响因子:
64.8
作者:
通讯作者:
--
影响因子:
16.2
作者:
Gu Z;Serradj N;Ueno M;Liang M;Li J;Baccei ML;Martin JH;Yoshida Y
通讯作者:
Yoshida Y