Identification of spinal circuits transmitting and gating mechanical pain.
Identification of spinal circuits transmitting and gating mechanical pain.
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识别传输和控制机械疼痛的脊髓回路
DOI:
10.1016/j.cell.2014.11.003
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发表时间:
2014-12-04
期刊:
影响因子:
64.5
通讯作者:
Ma Q
中科院分区:
文献类型:
--
作者:
Duan B;Cheng L;Bourane S;Britz O;Padilla C;Garcia-Campmany L;Krashes M;Knowlton W;Velasquez T;Ren X;Ross S;Lowell BB;Wang Y;Goulding M;Ma Q
Pain processing in the spinal cord has been postulated to rely on nociceptive transmission (T) neurons receiving inputs from nociceptors and Aβ mechanoreceptors, with Aβ inputs gated through feed-forward activation of spinal inhibitory neurons (IN). Here we used intersectional genetic manipulations to identify these critical components of pain transduction. Marking and ablating six populations of spinal excitatory and inhibitory neurons, coupled with behavioral and electrophysiological analysis, showed that excitatory neurons expressing somatostatin (SOM) represent T-type cells, whose ablation causes loss of mechanical pain. Inhibitory neurons marked by the expression of dynorphin (Dyn) represent IN-type neurons, which are necessary to gate Aβ fibers from activating SOM+ neurons to evoke pain. Therefore, peripheral mechanical nociceptors and Aβ mechanoreceptors, together with spinal SOM+ excitatory and Dyn+ inhibitory neurons form a microcircuit that transmits and gates mechanical pain.
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DOI:
10.1523/jneurosci.6175-08.2009
发表时间:
2009-04-22
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Kato G;Kawasaki Y;Koga K;Uta D;Kosugi M;Yasaka T;Yoshimura M;Ji RR;Strassman AM
通讯作者:
Strassman AM
影响因子:
7.4
作者:
CERVERO, F;IGGO, A;OGAWA, H
通讯作者:
OGAWA, H
影响因子:
64.8
作者:
通讯作者:
--
影响因子:
3.5
作者:
Baba, H;Ji, RR;Woolf, CJ
通讯作者:
Woolf, CJ
影响因子:
2.5
作者:
BENNETT, GJ;ABDELMOUMENE, M;DUBNER, R
通讯作者:
DUBNER, R