Evidence map›Paper›PMID 19369549›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2009

TRPA1 modulates mechanotransduction in cutaneous sensory neurons.

Kelvin Y Kwan, Joshua M Glazer, David P Corey, Frank L Rice, Cheryl L Stucky

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 173 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
173citing papers in PubMed, 1 pooled it
11.4field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

173 citing papers in PubMed, 1 synthesis or guideline pooled it, 312 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. A Central Somatic Transmission Mediates Proprioceptive Facilitation of Muscle Pain.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
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  13. Article
  14. Pain Management with Natural Products: Neurophysiological Insights.International journal of molecular sciences · 2025
    Review
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  20. Article

113 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 1 country.

Kelvin Y KwanDepartment of Neurobiology and Howard Hughes Medical Institute, Harvard Medical School, Boston, Massachusetts 02115, USA.
Joshua M Glazer
David P Corey
Frank L Rice
Cheryl L Stucky
Medical College of Wisconsin · USAlbany Medical Center Hospital · USHarvard University · US

Funding

MOLECULAR MECHANISMS OF AUDITORY TRANSDUCTIONR01DC000304 · NIDCD · MASSACHUSETTS GENERAL HOSPITAL · PI DAVID P COREY, Marcos Sotomayor · 1989 to 2026
$9.3M
Nociceptive Mechanisms Underlying Sickle Cell PainR01NS070711 · NINDS · MEDICAL COLLEGE OF WISCONSIN · PI Bonnie N Dittel, Cheryl Louise Stucky · 2009 to 2026
$8.7M
FUNCTIONAL ANALYSIS OF DISTINCT NOCICEPTOR POPULATIONSR01NS040538 · NINDS · MEDICAL COLLEGE OF WISCONSIN · PI STUCKY, CHERYL LOUISE · 2000 to 2019
$6.2M
Howard Hughes Medical InstituteNIDCD NIH HHS R01 DC000304NINDS NIH HHS NS40538NINDS NIH HHS R01 NS040538NINDS NIH HHS R01 NS070711
6 · The paper itself

Abstract

Transient receptor potential ankyrin 1 (TRPA1) is expressed by nociceptive neurons of the dorsal root ganglia (DRGs) and trigeminal ganglia, but its roles in cold and mechanotransduction are controversial. To determine the contribution of TRPA1 to cold and mechanotransduction in cutaneous primary afferent terminals, we used the ex vivo skin-nerve preparation from Trpa1(+/+), Trpa1(+/-), and Trpa1(-/-) adult mouse littermates. Cutaneous fibers from TRPA1-deficient mice showed no deficits in acute cold sensitivity, but they displayed striking deficits in mechanical response properties. C-fiber nociceptors from Trpa1(-/-) mice exhibited action potential firing rates 50% lower than those in wild-type C-fibers across a wide range of force intensities. Adelta-fiber mechanonociceptors also had reduced firing, but only at high intensity forces (>100 mN). Surprisingly, the firing rates of low-threshold Abeta and D-hair mechanoreceptive fibers were also altered. TRPA1 protein and mRNA expression was assessed in DRG neurons and cutaneous innervation by using Trpa1 in situ hybridization, an antibody for TRPA1, and an antibody for placental alkaline phosphatase (PLAP) in mice in which PLAP was substituted for Trpa1. DRG neurons of all sizes expressed Trpa1 mRNA or PLAP immunoreactivity. TRPA1 or PLAP immunolabeling was detected not only on many thin-caliber axons and intraepidermal endings but also on many large-caliber axons as well as lanceolate and Meissner endings. Epidermal and hair follicle keratinocytes also express TRPA1 message and protein. We propose that TRPA1 modulates mechanotransduction via a cell-autonomous mechanism in nociceptor terminals and possibly through a modulatory role in keratinocytes, which may interact with sensory terminals to modify their mechanical firing properties.

Indexed as

SkinAmyloid beta-PeptidesAnimalsCold TemperatureGanglia, SpinalMaleMechanotransduction, CellularMiceMice, KnockoutMice, TransgenicNociceptorsPhysical StimulationSensory Receptor CellsTransient Receptor Potential ChannelsTRPA1 Cation ChannelAmyloid beta-PeptidesTransient Receptor Potential ChannelsTRPA1 Cation ChannelTrpa1 protein, mouse

Identifiers

PMID19369549
PMCPMC2744291
OpenAlexW2074027763

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.