Evidence map›Paper›PMID 22787041›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2012

Transient receptor potential canonical 3 (TRPC3) is required for IgG immune complex-induced excitation of the rat dorsal root ganglion neurons.

Lintao Qu, Yumei Li, Xinghua Pan, Pu Zhang, Robert H LaMotte, Chao Ma

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
2.1field-weighted citation impact, top 16% 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

40 citing papers in PubMed, 66 citations in OpenAlex.

  1. TRPM2 is a direct pain transducer.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Review
  3. Article
  4. Spinal TRPC3 promotes neuropathic pain and coordinates phospholipase C-induced mechanical hypersensitivity.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  5. Article
  6. Article
  7. Pain Hypersensitivity in SLURP1 and SLURP2 Knock-out Mouse Models of Hereditary Palmoplantar Keratoderma.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  8. Article
  9. Review
  10. Review
  11. TRPC3 Antagonizes Pruritus in a Mouse Contact Dermatitis Model.The Journal of investigative dermatology · 2022
    Article
  12. Article
  13. Review
  14. FcεR1-expressing nociceptors trigger allergic airway inflammation.The Journal of allergy and clinical immunology · 2021
    Article
  15. The Neuroimmunology of Chronic Pain: From Rodents to Humans.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Review
  16. Review
  17. Article
  18. Article
  19. Review
  20. Article
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

6 authors at 1 institution in 3 countries.

Lintao QuDepartment of Anesthesiology, Yale University School of Medicine, New Haven, Connecticut 06510, USA.
Yumei Li
Xinghua Pan
Pu Zhang
Robert H LaMotte
Chao Ma
Yale University · US

Funding

Peripheral Neural Mechanisms of Inflammatory Itch and PainR01NS014624 · NINDS · YALE UNIVERSITY · PI LA MOTTE, ROBERT H · 1985 to 2016
$7.2M
Antigen-specific immune mechanisms of neuronal hyperexcitability and chronic painR21NS065091 · NINDS · YALE UNIVERSITY · PI MA, CHAO · 2009 to 2010
$396k
CIHRNINDS NIH HHS NS014624NINDS NIH HHS NS065091NINDS NIH HHS R01 NS014624NINDS NIH HHS R21 NS065091
6 · The paper itself

Abstract

Chronic pain may accompany immune-related disorders with an elevated level of serum IgG immune complex (IgG-IC), but the underlying mechanisms are obscure. We previously demonstrated that IgG-IC directly excited a subpopulation of dorsal root ganglion (DRG) neurons through the neuronal Fc-gamma receptor I (FcγRI). This might be a mechanism linking IgG-IC to pain and hyperalgesia. The purpose of this study was to investigate the signaling pathways and transduction channels activated downstream of IgG-IC and FcγRI. In whole-cell recordings, IgG-IC induced a nonselective cation current (I(IC)) in the rat DRG neurons, carried by Ca(2+) and Na(+). The I(IC) was potentiated or attenuated by, respectively, lowering or increasing the intracellular Ca(2+) buffering capacity, suggesting that this current was regulated by intracellular calcium. Single-cell RT-PCR revealed that transient receptor potential canonical 3 (TRPC3) mRNA was always coexpressed with FcγRI mRNA in the same DRG neuron. Moreover, ruthenium red (a general TRP channel blocker), BTP2 (a general TRPC channel inhibitor), and pyrazole-3 (a selective TRPC3 blocker) each potently inhibited the I(IC). Specific knockdown of TRPC3 using small interfering RNA attenuated the IgG-IC-induced Ca(2+) response and the I(IC). Additionally, the I(IC) was blocked by the tyrosine kinase Syk inhibitor OXSI-2, the phospholipase C (PLC) inhibitor neomycin, and either the inositol triphosphate (IP(3)) receptor antagonist 2-aminoethyldiphenylborinate or heparin. These results indicated that the activation of neuronal FcγRI triggers TRPC channels through the Syk-PLC-IP(3) pathway and that TRPC3 is a key molecular target for the excitatory effect of IgG-IC on DRG neurons.

Indexed as

AcetanilidesAnilidesAnimalsBiophysicsCalciumCationsCells, CulturedChelating AgentsEgtazic AcidElectric StimulationEnzyme InhibitorsFemaleGanglia, SpinalImmunoglobulin GMembrane PotentialsNeurons1,2-bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid2-(1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-7H-purin-7-yl)-N-(4-isopropylphenyl)acetamide4-methyl-4'-(3,5-bis(trifluoromethyl)-1H-pyrazol-1-yl)-1,2,3-thiadiazole-5-carboxanilideAcetanilidesAnilidesCalciumCationsChelating AgentsEgtazic AcidEnzyme InhibitorsImmunoglobulin GPurinesReceptors, IgGRNA, Small InterferingRuthenium RedThiadiazolesTRPC3 cation channelTRPC Cation Channels

Identifiers

PMID22787041
PMCPMC3437229
OpenAlexW2008351172

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.