Journal
BRAIN RESEARCH BULLETIN
Volume 119, Issue -, Pages 73-79Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.brainresbull.2015.08.007
Keywords
K2P channel; leak K+ current; Pain; TREK; TASK
Categories
Funding
- [25462885]
- Grants-in-Aid for Scientific Research [25462885] Funding Source: KAKEN
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Potassium (K+) channels are membrane proteins that allow rapid and selective flow of K+ ions across the cell membrane, generating electrical signals in neurons. Thus, K+ channels play a critical role in determining the neuronal excitability. Two-pore domain (K2P) leak K+ channels give rise to leak K+ currents that are responsible for the resting membrane potential and input resistance. The wide expression of leak K+ channels in the central and peripheral nervous system suggests that these channels are critically involved in pain signaling and behavior. Indeed, it has become apparent in the past decade that the leak K+ channels play essential roles in the development of pain. In this review, we describe evidence for the roles of TASK1, TASK3, TREK1, TREK2, TRAAK and TRESK channels in pain signaling and behavior. Furthermore, we describe the possible involvement of TASK2 and TWIK1 channels in pain. (C) 2015 Elsevier Inc. All rights reserved.
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