Evidence map›Paper›PMID 27068287›Full record

ArticleMolecular pain2016

Critical evaluation of the expression of gastrin-releasing peptide in dorsal root ganglia and spinal cord.

Devin M Barry, Hui Li, Xian-Yu Liu, Kai-Feng Shen, Xue-Ting Liu, Zhen-Yu Wu, Admire Munanairi, Xiao-Jun Chen, Jun Yin, Yan-Gang Sun and 2 more

Open access · goldAbstract read
In one paragraph

Article in Molecular pain, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.2field-weighted citation impact, top 9% 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

21 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
  2. Article
  3. The contribution of endocytic mediators to itch transmission.bioRxiv : the preprint server for biology · 2026
    Article
  4. The contribution of endocytic mediators to itch transmission.Frontiers in molecular neuroscience · 2026
    Article
  5. Review
  6. A neuropeptide code for itch.Nature reviews. Neuroscience · 2021
    Review
  7. Article
  8. Spinal Cord Injury Causes Reduction ofFrontiers in neurology · 2021
    Article
  9. Central circuit mechanisms of itch.Nature communications · 2020
    Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Spinal Mechanisms of Itch Transmission.Neuroscience bulletin · 2018
    Review
  18. Article
  19. Article
  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

12 authors at 4 institutions in 2 countries.

Devin M BarryCenter for the Study of Itch, Washington University School of Medicine, St. Louis, MO, USA Departments of Anesthesiology, Washington University School of Medicine, St. Louis, MO, USA.
Hui LiCenter for the Study of Itch, Washington University School of Medicine, St. Louis, MO, USA Department of Anatomy, K. K. Leung Brain Research Centre, The Fourth Military Medical University, Xi'an, PR China.
Xian-Yu LiuCenter for the Study of Itch, Washington University School of Medicine, St. Louis, MO, USA Departments of Anesthesiology, Washington University School of Medicine, St. Louis, MO, USA.
Kai-Feng ShenCenter for the Study of Itch, Washington University School of Medicine, St. Louis, MO, USA Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University, Chongqing, PR China.
Xue-Ting LiuCenter for the Study of Itch, Washington University School of Medicine, St. Louis, MO, USA Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, The State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangdong, PR China.
Zhen-Yu WuDepartment of Anatomy, K. K. Leung Brain Research Centre, The Fourth Military Medical University, Xi'an, PR China.
Admire MunanairiCenter for the Study of Itch, Washington University School of Medicine, St. Louis, MO, USA Departments of Anesthesiology, Washington University School of Medicine, St. Louis, MO, USA.
Xiao-Jun ChenInstitute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.
Jun YinCenter for the Study of Itch, Washington University School of Medicine, St. Louis, MO, USA Departments of Anesthesiology, Washington University School of Medicine, St. Louis, MO, USA.
Yan-Gang SunInstitute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.
Yun-Qing LiDepartment of Anatomy, K. K. Leung Brain Research Centre, The Fourth Military Medical University, Xi'an, PR China.
Zhou-Feng ChenCenter for the Study of Itch, Washington University School of Medicine, St. Louis, MO, USA Departments of Anesthesiology, Washington University School of Medicine, St. Louis, MO, USA Departments of Psychiatry, Center for the Study of Itch, Washington University School of Medicine, St. Louis, MO, USA Departments of Developmental Biology, Center for the Study of Itch, Washington University School of Medicine, St. Louis, MO, USA chenz@wustl.edu deptanat@fmmu.edu.cn.
Washington University in St. Louis · USAir Force Medical University · CNChinese Academy of Sciences · CNGuangzhou Medical University · CN

Funding

Washington University Center for Cellular ImagingP30CA091842 · NCI · WASHINGTON UNIVERSITY · PI TIMOTHY J. EBERLEIN · 2001 to 2026
$128.0M
Washington University Institute of Clinical and Translational SciencesUL1TR000448 · NCATS · WASHINGTON UNIVERSITY · PI EVANOFF, BRADLEY A · 2012 to 2016
$41.4M
BIOMEDICAL RESEARCH TRAINING IN DRUG ABUSET32DA007261 · NIDA · WASHINGTON UNIVERSITY · PI ARPANA AGRAWAL, Jose A Moron-Concepcion · 1991 to 2026
$8.8M
MOLECULAR MECHANISMS OF THE ITCH SENSATION IN THE SPINAL CORDR01AR056318 · NIAMS · WASHINGTON UNIVERSITY · PI CHEN, ZHOUFENG · 2009 to 2018
$4.5M
MECHANISMS OF DESENSITIZATION OF MOR1D-GRPR CROSSTALKR01DA037261 · NIDA · WASHINGTON UNIVERSITY · PI CHEN, ZHOUFENG · 2015 to 2019
$2.1M
UNDERSTANDING MECHANISMS THAT BLOCK GRPR-MEDIATED CHRONIC ITCHR01NS094344 · NINDS · WASHINGTON UNIVERSITY · PI CHEN, ZHOUFENG · 2015 to 2019
$1.8M
NCATS NIH HHS UL1 TR000448NCATS NIH HHS UL1TR000448NCI NIH HHS P30 CA091842NCI NIH HHS P30 CA91842NIAMS NIH HHS AR056318-01A1NIAMS NIH HHS R01 AR056318NIDA NIH HHS 5T32DA007261-23NIDA NIH HHS R01 DA037261NINDS NIH HHS R01 NS094344
6 · The paper itself

Abstract

There are substantial disagreements about the expression of gastrin-releasing peptide (GRP) in sensory neurons and whether GRP antibody cross-reacts with substance P (SP). These concerns necessitate a critical revaluation of GRP expression using additional approaches. Here, we show that a widely used GRP antibody specifically recognizes GRP but not SP. In the spinal cord of mice lacking SP (Tac1KO), the expression of not only GRP but also other peptides, notably neuropeptide Y (NPY), is significantly diminished. We detectedGrpmRNA in dorsal root ganglias using reverse transcription polymerase chain reaction, in situ hybridization and RNA-seq. We demonstrated thatGrpmRNA and protein are upregulated in dorsal root ganglias, but not in the spinal cord, of mice with chronic itch. Few GRP(+)immunostaining signals were detected in spinal sections following dorsal rhizotomy and GRP(+)cell bodies were not detected in dissociated dorsal horn neurons. Ultrastructural analysis further shows that substantially more GRPergic fibers form synaptic contacts with gastrin releasing peptide receptor-positive (GRPR(+)) neurons than SPergic fibers. Our comprehensive study demonstrates that a majority of GRPergic fibers are of primary afferent origin. A number of factors such as low copy number ofGrptranscripts, small percentage of cells expressingGrp, and the use of an eGFP GENSAT transgenic as a surrogate for GRP protein have contributed to the controversy. Optimization of experimental procedures facilitates the specific detection of GRP expression in dorsal root ganglia neurons.

Indexed as

Amino Acid SequenceAnimalsAntibody SpecificityCell CountCells, CulturedChronic DiseaseGanglia, SpinalGastrin-Releasing PeptideGene DeletionGene Expression RegulationMaleMice, Inbred C57BLMice, KnockoutPosterior Horn CellsPruritusReceptors, BombesinGastrin-Releasing PeptideReceptors, BombesinRNA, MessengerSubstance Pdorsal root gangliagastrin-releasing peptideitchsensory neuronsspinal cordsubstance P

Identifiers

PMID27068287
PMCPMC4972254
OpenAlexW2334239888

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

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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.