Evidence map›Paper›PMID 17687047›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2007

Complement induction in spinal cord microglia results in anaphylatoxin C5a-mediated pain hypersensitivity.

Robert S Griffin, Michael Costigan, Gary J Brenner, Chi Him Eddie Ma, Joachim Scholz, Andrew Moss, Andrew J Allchorne, Gregory L Stahl, Clifford J Woolf

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 133 papers.

0numbers the graph read from it
0cells of the map it votes in
133citing papers in PubMed
7.7field-weighted citation impact, top 2% 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

133 citing papers in PubMed, 244 citations in OpenAlex.

  1. Glial cells in neuropathic pain.Physiological reviews · 2026
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  12. Gene therapy for chronic pain management.Cell reports. Medicine · 2024
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73 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

9 authors at 3 institutions in 2 countries.

Robert S GriffinNeural Plasticity Research Group, Department of Anesthesia and Critical Care, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts 02129, USA.
Michael Costigan
Gary J Brenner
Chi Him Eddie Ma
Joachim Scholz
Andrew Moss
Andrew J Allchorne
Gregory L Stahl
Clifford J Woolf
Harvard University · USMassachusetts General Hospital · USUniversity College London · GB

Funding

ALTERED SENSIBILITY FOLLOWING PERIPHERAL NERVE DAMAGER01NS038253 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI WOOLF, CLIFFORD J · 1999 to 2017
$8.2M
Microglia, Complement, and PainR01DE017821 · NIDCR · MASSACHUSETTS GENERAL HOSPITAL · PI WOOLF, CLIFFORD J · 2006 to 2010
$2.4M
NMDA Receptor Phosphorylation and Trafficking after PainK08NS044139 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI BRENNER, GARY JAY · 2002 to 2006
$853k
The genetic basis of pain sensitivityR03NS052623 · NINDS · MASSACHUSETTS GENERAL HOSPITAL · PI COSTIGAN, MICHAEL · 2005 to 2006
$172k
NIDCR NIH HHS R01 DE017821NINDS NIH HHS K08 NS044139NINDS NIH HHS NS038253NINDS NIH HHS NS044139NINDS NIH HHS NS052623NINDS NIH HHS R01 NS038253NINDS NIH HHS R03 NS052623PHS HHS RDE017821A
6 · The paper itself

Abstract

Microarray expression profiles reveal substantial changes in gene expression in the ipsilateral dorsal horn of the spinal cord in response to three peripheral nerve injury models of neuropathic pain. However, only 54 of the 612 regulated genes are commonly expressed across all the neuropathic pain models. Many of the commonly regulated transcripts are immune related and include the complement components C1q, C3, and C4, which we find are expressed only by microglia. C1q and C4 are, moreover, the most strongly regulated of all 612 regulated genes. In addition, we find that the terminal complement component C5 and the C5a receptor (C5aR) are upregulated in spinal microglia after peripheral nerve injury. Mice null for C5 had reduced neuropathic pain sensitivity, excluding C3a as a pain effector. C6-deficient rats, which cannot form the membrane attack complex, have a normal neuropathic pain phenotype. However, C5a applied intrathecally produces a dose-dependent, slow-onset cold pain in naive animals. Furthermore, a C5aR peptide antagonist reduces cold allodynia in neuropathic pain models. We conclude that induction of the complement cascade in spinal cord microglia after peripheral nerve injury contributes to neuropathic pain through the release and action of the C5a anaphylatoxin peptide.

Indexed as

AnaphylatoxinsAnimalsCells, CulturedComplement C5aGene Expression RegulationHyperalgesiaMaleMembrane ProteinsMiceMice, Inbred C57BLMicrogliaPainPain MeasurementRatsRats, Sprague-DawleyReceptor, Anaphylatoxin C5aAnaphylatoxinsC5AR1 protein, humanComplement C5aMembrane ProteinsReceptor, Anaphylatoxin C5aReceptors, Complement

Identifiers

PMID17687047
PMCPMC6672952
OpenAlexW2017271614

What OpenQuestion holds

Textmetadata
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.