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Nat Rev Drug Discov. 2009 Jan;8(1):55-68. doi: 10.1038/nrd2757.

Transient receptor potential channels: targeting pain at the source.

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1
The Scripps Research Institute, 10550 North Torrey Pines Road, ICND210F, La Jolla, California 92037, USA.

Abstract

Pain results from the complex processing of neural signals at different levels of the central nervous system, with each signal potentially offering multiple opportunities for pharmacological intervention. A logical strategy for developing novel analgesics is to target the beginning of the pain pathway, and aim potential treatments directly at the nociceptors--the high-threshold primary sensory neurons that detect noxious stimuli. The largest group of receptors that function as noxious stimuli detectors in nociceptors is the transient receptor potential (TRP) channel family. This Review highlights evidence supporting particular TRP channels as targets for analgesics, indicates the likely efficacy profiles of TRP-channel-acting drugs, and discusses the development pathways needed to test candidates as analgesics in humans.

PMID:
19116627
PMCID:
PMC2755576
DOI:
10.1038/nrd2757
[Indexed for MEDLINE]
Free PMC Article
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