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Nat Neurosci. 2010 Dec;13(12):1460-2. doi: 10.1038/nn.2683. Epub 2010 Oct 31.

Toll-like receptor 7 mediates pruritus.

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1
Sensory Plasticity Laboratory, Pain Research Center, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA.

Abstract

Toll-like receptors are typically expressed in immune cells to regulate innate immunity. We found that functional Toll-like receptor 7 (TLR7) was expressed in C-fiber primary sensory neurons and was important for inducing itch (pruritus), but was not necessary for eliciting mechanical, thermal, inflammatory and neuropathic pain in mice. Our results indicate that TLR7 mediates itching and is a potential therapeutic target for anti-itch treatment in skin disease conditions.

PMID:
21037581
PMCID:
PMC2991508
DOI:
10.1038/nn.2683
[Indexed for MEDLINE]
Free PMC Article
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