Evidence map›Paper›PMID 21319222›Full record

ArticleGlia2011

Following nerve injury neuregulin-1 drives microglial proliferation and neuropathic pain via the MEK/ERK pathway.

Margarita Calvo, Ning Zhu, John Grist, Zhenzhong Ma, Jeffrey A Loeb, David L H Bennett

Open access · greenAbstract read
In one paragraph

Article in Glia, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
6.2field-weighted citation impact, top 3% 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

66 citing papers in PubMed, 110 citations in OpenAlex.

  1. Trial
  2. Glial cells in neuropathic pain.Physiological reviews · 2026
    Review
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  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
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  13. Microglial Cannabinoid CBInternational journal of molecular sciences · 2023
    Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Precision spinal gene delivery-induced functional switch in nociceptive neurons reverses neuropathic pain.Molecular therapy : the journal of the American Society of Gene Therapy · 2022
    Article
  20. Article

6 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

6 authors at 2 institutions in 2 countries.

Margarita CalvoWolfson CARD, Kings College London, Hodgkin Building, Guys Campus, SE1 1UL, London, United Kingdom.
Ning Zhu
John Grist
Zhenzhong Ma
Jeffrey A Loeb
David L H Bennett
King's College London · GBWayne State University · US

Funding

Wellcome TrustWellcome Trust 07704/z/05/z
6 · The paper itself

Abstract

Following peripheral nerve injury microglia accumulate within the spinal cord and adopt a proinflammatory phenotype a process which contributes to the development of neuropathic pain. We have recently shown that neuregulin-1, a growth factor released following nerve injury, activates erbB 2, 3, and 4 receptors on microglia and stimulates proliferation, survival and chemotaxis of these cells. Here we studied the intracellular signaling pathways downstream of neuregulin-1-erbB activation in microglial cells. We found that neuregulin-1 in vitro induced phosphorylation of ERK1/2 and Akt without activating p38MAPK. Using specific kinase inhibitors we found that the mitogenic effect of neuregulin-1 on microglia was dependant on MEK/ERK1/2 pathway, the chemotactic effect was dependant on PI3K/Akt signaling and survival was dependant on both pathways. Intrathecal treatment with neuregulin-1 was associated with microgliosis and development of mechanical and cold pain related hypersensitivity which was dependant on ERK1/2 phosphorylation in microglia. Spinal nerve ligation results in a robust microgliosis and sustained ERK1/2 phosphorylation within these cells. This pathway is downstream of neuregulin-1/erbB signaling since its blockade resulted in a significant reduction in microglial ERK1/2 phosphorylation. Inhibition of the MEK/ERK1/2 pathway resulted in decreased spinal microgliosis and in reduced mechanical and cold hypersensitivity after peripheral nerve damage. We conclude that neuregulin-1 released after nerve injury activates microglial erbB receptors which consequently stimulates the MEK/ERK1/2 pathway that drives microglial proliferation and contributes to the development of neuropathic pain.

Indexed as

Peripheral Nerve InjuriesAnalysis of VarianceAnimalsBlotting, WesternCell ProliferationImmunohistochemistryMaleMAP Kinase Signaling SystemMicrogliaMitogen-Activated Protein KinasesNeuralgiaNeuregulin-1Peripheral NervesPhosphorylationProto-Oncogene Proteins c-aktRatsMitogen-Activated Protein KinasesNeuregulin-1Proto-Oncogene Proteins c-akt

Identifiers

PMID21319222
PMCPMC3222694
OpenAlexW1975611265

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.