Evidence map›Paper›PMID 23263443›Full record

ArticleNature neuroscience2013

A subpopulation of nociceptors specifically linked to itch.

Liang Han, Chao Ma, Qin Liu, Hao-Jui Weng, Yiyuan Cui, Zongxiang Tang, Yushin Kim, Hong Nie, Lintao Qu, Kush N Patel and 7 more

Open access · greenAbstract read
In one paragraph

Article in Nature neuroscience, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 328 papers.

0numbers the graph read from it
0cells of the map it votes in
328citing papers in PubMed
44.0field-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

328 citing papers in PubMed, 605 citations in OpenAlex.

  1. Immunopathogenesis of itch: an integrative framework for chronic pruritus.JID innovations : skin science from molecules to population health · 2026
    Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. MrgprC11 expression and function in vagal afferent nerves in the esophagus.American journal of physiology. Gastrointestinal and liver physiology · 2026
    Article
  12. Review
  13. Review
  14. Basophils activate oncostatin M receptor-expressing vagal sensory neurons.The Journal of allergy and clinical immunology · 2026
    Article
  15. Review
  16. Endosomal MrGPRX1 signaling sensitizes TRPV1 to enhance itch.Frontiers in molecular neuroscience · 2026
    Article
  17. Review
  18. Skin innervation and itsFrontiers in cellular neuroscience · 2026
    Review
  19. Article
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

17 authors at 6 institutions in 2 countries.

Liang HanThe Solomon H. Snyder Department of Neuroscience, Center for Sensory Biology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
Chao Ma
Qin Liu
Hao-Jui Weng
Yiyuan Cui
Zongxiang Tang
Yushin Kim
Hong Nie
Lintao Qu
Kush N Patel
Zhe Li
Benjamin McNeil
Shaoqiu He
Yun Guan
Bo Xiao
Robert H Lamotte
Xinzhong Dong
Johns Hopkins University · USYale University · USJohns Hopkins Medicine · USSichuan University · CNChinese Academy of Medical Sciences & Peking Union Medical College · CNHoward Hughes Medical Institute · US

Funding

Research Project CoreP01NS047399 · NINDS · YALE UNIVERSITY · PI LA MOTTE, ROBERT H · 2004 to 2013
$11.0M
Peripheral Neural Mechanisms of Inflammatory Itch and PainR01NS014624 · NINDS · YALE UNIVERSITY · PI LA MOTTE, ROBERT H · 1985 to 2016
$7.2M
Functional analysis of the Mrg receptor family in pain sensationR01NS054791 · NINDS · JOHNS HOPKINS UNIVERSITY · PI DONG, XINZHONG · 2007 to 2020
$5.0M
Mrgs as New Target for the Treatment of Neuropathic PainR01NS070814 · NINDS · JOHNS HOPKINS UNIVERSITY · PI GUAN, YUN · 2011 to 2020
$3.2M
Functional Analysis of Mrgpr Family in itch sensationR37NS054791 · NINDS · JOHNS HOPKINS UNIVERSITY · PI Xinzhong Dong · 2022 to 2026
$2.9M
Neuroscience Training ProgramT32EY017203 · NEI · JOHNS HOPKINS UNIVERSITY · PI BERGLES, DWIGHT E · 2005 to 2014
$2.9M
Functional Analysis of Pirt and Pirt2: novel regulators of TRP channelsR01GM087369 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI DONG, XINZHONG · 2010 to 2013
$1.3M
Howard Hughes Medical InstituteNEI NIH HHS T32 EY017203NIGMS NIH HHS GM087369NIGMS NIH HHS R01 GM087369NINDS NIH HHS NS014624NINDS NIH HHS NS047399NINDS NIH HHS NS054791NINDS NIH HHS NS070814NINDS NIH HHS P01 NS047399NINDS NIH HHS R01 NS014624NINDS NIH HHS R01 NS054791NINDS NIH HHS R01 NS070814NINDS NIH HHS R37 NS054791
6 · The paper itself

Abstract

Itch-specific neurons have been sought for decades. The existence of such neurons has been doubted recently as a result of the observation that itch-mediating neurons also respond to painful stimuli. We genetically labeled and manipulated MrgprA3(+) neurons in the dorsal root ganglion (DRG) and found that they exclusively innervated the epidermis of the skin and responded to multiple pruritogens. Ablation of MrgprA3(+) neurons led to substantial reductions in scratching evoked by multiple pruritogens and occurring spontaneously under chronic itch conditions, whereas pain sensitivity remained intact. Notably, mice in which TRPV1 was exclusively expressed in MrgprA3(+) neurons exhibited itch, but not pain, behavior in response to capsaicin. Although MrgprA3(+) neurons were sensitive to noxious heat, activation of TRPV1 in these neurons by noxious heat did not alter pain behavior. These data suggest that MrgprA3 defines a specific subpopulation of DRG neurons mediating itch. Our study opens new avenues for studying itch and developing anti-pruritic therapies.

Indexed as

Action PotentialsAnimalsAntirheumatic AgentsCalciumCapsaicinCells, CulturedChloroquineEpidermisGanglia, SpinalGene Expression RegulationGreen Fluorescent ProteinsHistamineHot TemperatureMaleMiceMice, Inbred C57BLAntirheumatic Agentsbovine adrenal medulla 8-22CalciumCapsaicinChloroquineGreen Fluorescent ProteinsGt(ROSA)26Sor non-coding RNA, mouseHistamineMrgprA3 protein, mouseNerve Tissue ProteinsPeptide FragmentsPlant LectinsProteinsProto-Oncogene Proteins c-fosReceptors, BombesinReceptors, G-Protein-CoupledRNA, UntranslatedSensory System Agentstomato lectinTRPV1 protein, mouseTRPV Cation Channels

Identifiers

PMID23263443
PMCPMC3557753
OpenAlexW1969655931

What OpenQuestion holds

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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.