Evidence map›Paper›PMID 19229995›Full record

ArticleGlia2009

MMP-9 controls Schwann cell proliferation and phenotypic remodeling via IGF-1 and ErbB receptor-mediated activation of MEK/ERK pathway.

Sharmila Chattopadhyay, Veronica I Shubayev

Abstract read
In one paragraph

Article in Glia, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
2.8field-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

52 citing papers in PubMed, 99 citations in OpenAlex.

  1. Review
  2. Review
  3. Avicenna journal of phytomedicine · 2026
    Article
  4. Review
  5. Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Melatonin signalling in Schwann cells during neuroregeneration.Frontiers in cell and developmental biology · 2022
    Review
  12. Article
  13. Claudin 14/15 play important roles in early wallerian degeneration after rat sciatic nerve injury.Chinese journal of traumatology = Zhonghua chuang shang za zhi · 2021
    Article
  14. Article
  15. Article
  16. Article
  17. Article
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  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

2 authors at 2 institutions in 1 country.

Sharmila ChattopadhyayDepartment of Anesthesiology, University of California, San Diego, California 92093-0629, USA.
Veronica I Shubayev
University of California, San Diego · USVA San Diego Healthcare System · US

Funding

Matrix metalloproteinases as biomarkers of neurodegenerationR21NS060307 · NINDS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI SHUBAYEV, VERONICA · 2007 to 2008
$425k
NINDS NIH HHS R21 NS060307
6 · The paper itself

Abstract

Phenotypic remodeling of Schwann cells is required to ensure successful regeneration of damaged peripheral axons. After nerve damage, Schwann cells produce an over 100-fold increase in metalloproteinase-9 (MMP-9), and therapy with an MMP inhibitor increases the number of resident (but not infiltrating) cells in injured nerve. Here, we demonstrate that MMP-9 regulates proliferation and trophic signaling of Schwann cells. Using in vivo BrdU incorporation studies of axotomized sciatic nerves of MMP-9-/- mice, we found increased Schwann cell mitosis in regenerating (proximal) stump relative to wild-type mice. Treatment of cultured primary Schwann cells with recombinant MMP-9 suppressed their growth, mitogenic activity, and produced a dose-dependent, biphasic, and selective activation of ERK1/2, but not JNK and p38 MAPK. MMP-9 induced ERK1/2 signaling in both undifferentiated and differentiated (using dbcAMP) Schwann cells. Using inhibitors to MEK and trophic tyrosine kinase receptors, we established that MMP-9 regulates Ras/Raf/MEK-ERK pathways through IGF-1, ErbB, and PDGF receptors. We also report on the early changes of MMP-9 mRNA expression (within 24 h) after axotomy. These studies establish that MMP-9 controls critical trophic signal transduction pathways and phenotypic remodeling of Schwann cells.

Indexed as

Cell ProliferationAnimalsCells, CulturedExtracellular Signal-Regulated MAP KinasesFemaleInsulin-Like Growth Factor IMAP Kinase Kinase KinasesMAP Kinase Signaling SystemMatrix Metalloproteinase 9MiceMice, KnockoutPhenotypeRatsRats, Sprague-DawleyReceptor Protein-Tyrosine KinasesReceptors, Platelet-Derived Growth FactorExtracellular Signal-Regulated MAP KinasesInsulin-Like Growth Factor IMAP Kinase Kinase KinasesMatrix Metalloproteinase 9Mmp9 protein, mouseReceptor Protein-Tyrosine KinasesReceptors, Platelet-Derived Growth FactorRNA, Messenger

Identifiers

PMID19229995
PMCPMC2713381
OpenAlexW2072637438

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.