Brainstem neurons that command mammalian locomotor asymmetries.

Brainstem neurons that command mammalian locomotor asymmetries.
复制标题

DOI:
10.1038/s41593-020-0633-7
复制
发表时间:
2020-06
影响因子:
25
通讯作者:
Kiehn O
Kiehn O
中科院分区:
医学1区
文献类型:
--
作者:
Cregg JM;Leiras R;Montalant A;Wanken P;Wickersham IR;Kiehn O

文献摘要

参考文献

被引文献

相似文献

下行命令神经元指示脊髓网络执行基本的运动功能,例如步态和速度。步态和速度的指令函数是对称的,这意味着一个独立的未知系统指导不对称的运动,包括向左或向右移动的能力。在这里,我们报告的发现,Chx 10谱系网状脊髓神经元的行为,以控制在哺乳动物的运动方向。Chx 10神经元主要表现为同侧投射,其选择性单侧激活导致自由活动小鼠的同侧转向运动。Chx 10神经元的单侧抑制引起对侧转向运动。成对的左/右电机记录确定不同的机制,通过肢体和轴向脊髓回路介导的定向运动。最后,我们确定了感觉运动脑区,项目到Chx 10网状脊髓神经元,并证明他们的单边激活可以传递左/右方向的命令。这些数据共同确定了哺乳动物中命令左/右运动不对称的下行运动系统。
Descending command neurons instruct spinal networks to execute basic locomotor functions, such as which gait and what speed. The command functions for gait and speed are symmetric, implying that a separate unknown system directs asymmetric movements—including the ability to move left or right. Here we report the discovery that Chx10-lineage reticulospinal neurons act to control the direction of locomotor movements in mammals. Chx10 neurons exhibit mainly ipsilateral projection, and their selective unilateral activation causes ipsilateral turning movements in freely moving mice. Unilateral inhibition of Chx10 neurons causes contralateral turning movements. Paired left/right motor recordings identified distinct mechanisms for directional movements mediated via limb and axial spinal circuits. Finally, we identify sensorimotor brain regions that project onto Chx10 reticulospinal neurons, and demonstrate that their unilateral activation can impart left/right directional commands. Together these data identify the descending motor system that commands left/right locomotor asymmetries in mammals.
DOI: 10.1073/pnas.0700293104
发表时间: 2007-03-20
影响因子: 11.1
作者:
Armbruster, Blaine N.;Li, Xiang;Roth, Bryan L.
通讯作者: Roth, Bryan L.
DOI: 10.1016/s0165-0173(98)00002-2
发表时间: 1998-05-01
影响因子: --
作者:
Grillner, S;Ekeberg, Ö;Wallén, P
通讯作者: Wallén, P
DOI: 10.1007/s00359-006-0187-5
发表时间: 2007-03-01
影响因子: 2.1
作者:
Gruntman, Eyal;Benjamini, Yoav;Golani, Ilan
通讯作者: Golani, Ilan
DOI: 10.1038/s41586-018-0866-8
发表时间: 2019-01-31
期刊: NATURE
影响因子: 64.8
作者:
Jennings, Joshua H.;Kim, Christina K.;Deisseroth, Karl
通讯作者: Deisseroth, Karl
DOI: 10.1016/0006-8993(87)90676-7
发表时间: 1987-05-12
期刊: BRAIN RESEARCH
影响因子: 2.9
作者:
GARCIARILL, E;SKINNER, RD
通讯作者: SKINNER, RD