Regulation of Pain and Itch by TRP Channels.

Journal Article (Journal Article;Review)

Nociception is an important physiological process that detects harmful signals and results in pain perception. In this review, we discuss important experimental evidence involving some TRP ion channels as molecular sensors of chemical, thermal, and mechanical noxious stimuli to evoke the pain and itch sensations. Among them are the TRPA1 channel, members of the vanilloid subfamily (TRPV1, TRPV3, and TRPV4), and finally members of the melastatin group (TRPM2, TRPM3, and TRPM8). Given that pain and itch are pro-survival, evolutionarily-honed protective mechanisms, care has to be exercised when developing inhibitory/modulatory compounds targeting specific pain/itch-TRPs so that physiological protective mechanisms are not disabled to a degree that stimulus-mediated injury can occur. Such events have impeded the development of safe and effective TRPV1-modulating compounds and have diverted substantial resources. A beneficial outcome can be readily accomplished via simple dosing strategies, and also by incorporating medicinal chemistry design features during compound design and synthesis. Beyond clinical use, where compounds that target more than one channel might have a place and possibly have advantageous features, highly specific and high-potency compounds will be helpful in mechanistic discovery at the structure-function level.

Full Text

Duke Authors

Cited Authors

  • Moore, C; Gupta, R; Jordt, S-E; Chen, Y; Liedtke, WB

Published Date

  • February 2018

Published In

Volume / Issue

  • 34 / 1

Start / End Page

  • 120 - 142

PubMed ID

  • 29282613

Pubmed Central ID

  • PMC5799130

Electronic International Standard Serial Number (EISSN)

  • 1995-8218

Digital Object Identifier (DOI)

  • 10.1007/s12264-017-0200-8


  • eng

Conference Location

  • Singapore