Selective inhibition of Ca(V)3.2 channels reverses hyperexcitability of peripheral nociceptors and alleviates postsurgical pain.
Selective inhibition of Ca(V)3.2 channels reverses hyperexcitability of peripheral nociceptors and alleviates postsurgical pain.
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选择性抑制Ca(v)3.2通道逆转周围伤害感受器的过度兴奋,并减轻术后疼痛。
DOI:
10.1126/scisignal.aao4425
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发表时间:
2018-08-28
影响因子:
7.3
通讯作者:
Todorovic SM
中科院分区:
文献类型:
--
作者:
Joksimovic SL;Joksimovic SM;Tesic V;García-Caballero A;Feseha S;Zamponi GW;Jevtovic-Todorovic V;Todorovic SM
Pain-sensing sensory neurons of the dorsal root ganglion (DRG) can become sensitized (hyperexcitable) in response to surgically-induced peripheral tissue injury. However, the potential role and molecular mechanisms of nociceptive ion channel dysregulation in acute pain conditions such as those resulting from skin and soft tissue incision remain unknown. Here, we use selective pharmacology, electrophysiology and mouse genetics to link observed increased current densities arising from Cav3.2 isoform of T-type calcium channels (T-channels) to nociceptive sensitization using a clinically-relevant rodent model of skin and deep tissue incision. Furthermore, knockdown of the Cav3.2-targeting deubiquitinating enzyme USP5, or the specific disruption of its binding to Cav3.2 channel, in peripheral nociceptors resulted in a robust antihyperalgesic effect in vivo, and substantial T-current reduction in vitro. Our study provides a key mechanistic understanding of Cav3.2 channel’s plasticity post-surgical incision and identifies novel therapies for perioperative pain that may greatly decrease the need for narcotics and potential for drug abuse. Selective pharmacological antagonism of Cav3.2 channels in peripheral nociceptors and disruption of Cav3.2-USP5 signaling alleviate hyperalgesia post-surgery.
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影响因子:
56.9
作者:
Kim, D;Park, D;Shin, HS
通讯作者:
Shin, HS
影响因子:
7.4
作者:
Pogatzki-Zahn, EM;Shimizu, I;Raja, SN
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Raja, SN
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4.6
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Proft, Juliane;Rzhepetskyy, Yuriy;Weiss, Norbert
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Weiss, Norbert
影响因子:
5.7
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Apfelbaum, JL;Chen, C;Gan, TJ
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Gan, TJ
影响因子:
11.4
作者:
Bourinet, E;Alloui, A;Nargeot, J
通讯作者:
Nargeot, J