Evidence map›Paper›PMID 19248116›Full record

ArticleArthritis and rheumatism2009

Interleukin-7 stimulates secretion of S100A4 by activating the JAK/STAT signaling pathway in human articular chondrocytes.

Raghunatha R Yammani, David Long, Richard F Loeser

Open access · greenAbstract read
In one paragraph

Article in Arthritis and rheumatism, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

36 citing papers in PubMed, 72 citations in OpenAlex.

  1. Trial
  2. Exercise-myokine relationships in osteoarthritis.Journal of translational medicine · 2026
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Interleukin (IL)-7 Signaling in the Tumor Microenvironment.Advances in experimental medicine and biology · 2021
    Article
  11. Extracellular S100A4 as a key player in fibrotic diseases.Journal of cellular and molecular medicine · 2020
    Review
  12. Article
  13. Review
  14. Article
  15. S100 proteins as therapeutic targets.Biophysical reviews · 2018
    Review
  16. Article
  17. Review
  18. Inhibitory effect of JAK inhibitor on mechanical stress-induced protease expression by human articular chondrocytes.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2017
    Article
  19. Review
  20. S100A4 protects the myocardium against ischemic stress.Journal of molecular and cellular cardiology · 2016
    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

3 authors at 1 institution in 1 country.

Raghunatha R YammaniWake Forest University School of Medicine, Winston-Salem, North Carolina 27157, USA. ryammani@wfubmc.edu
David Long
Richard F Loeser
Wake Forest University · US

Funding

Wake Forest Claude D. Pepper OAIC - RenewalP30AG021332 · NIA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI Jamie Nicole Justice · 2002 to 2026
$36.4M
Integrin Function in CartilageR01AR049003 · NIAMS · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI LOESER, RICHARD F · 2002 to 2011
$2.8M
Aging and IGF-I in CartilageR01AG016697 · NIA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI LOESER, RICHARD F · 2001 to 2009
$2.4M
NIAMS NIH HHS R01 AR049003NIA NIH HHS P30 AG021332NIA NIH HHS P30-AG-21332NIA NIH HHS R01 AG016697NIA NIH HHS R01-AG-16697
6 · The paper itself

Abstract

objectiveS100A4 has been shown to be increased in osteoarthritic (OA) cartilage and to stimulate chondrocytes to produce matrix metalloproteinase 13 (MMP-13) through activation of the receptor for advanced glycation end products (RAGE). The aim of this study was to examine the mechanism of S100A4 secretion by chondrocytes.

methodsHuman articular chondrocytes isolated from ankle cartilage were stimulated with 10 ng/ml of interleukin-1beta (IL-1beta), IL-6, IL-7, or IL-8. Cells were pretreated with either a JAK-3 inhibitor, brefeldin A, or cycloheximide. Immunoblotting with phospho-specific antibodies was used to determine the activation of signaling proteins. Secretion of S100A4 was measured in conditioned media by immunoblotting, and MMP-13 was measured by enzyme-linked immunosorbent assay.

resultsChondrocyte secretion of S100A4 was observed after treatment with IL-6 or IL-8 but was much greater in cultures treated with equal amounts of IL-7 and was not observed after treatment with IL-1beta. IL-7 activated the JAK/STAT pathway, with increased phosphorylation of JAK-3 and STAT-3, leading to increased production of S100A4 and MMP-13. Overexpression of a dominant-negative RAGE construct inhibited the IL-7-mediated production of MMP-13. Pretreatment of chondrocytes with a JAK-3 inhibitor or with cycloheximide blocked the IL-7-mediated secretion of S100A4, but pretreatment with brefeldin A did not.

conclusionIL-7 stimulates chondrocyte secretion of S100A4 via activation of JAK/STAT signaling, and then S100A4 acts in an autocrine manner to stimulate MMP-13 production via RAGE. Since both IL-7 and S100A4 are up-regulated in OA cartilage and can stimulate MMP-13 production by chondrocytes, this signaling pathway could contribute to cartilage destruction during the development of OA.

Indexed as

Brefeldin ACartilage, ArticularCells, CulturedChondrocytesCycloheximideHumansInterleukin-7Janus KinasesMatrix Metalloproteinase 13Protein Synthesis InhibitorsReceptor for Advanced Glycation End ProductsS100 Calcium-Binding Protein A4S100 ProteinsSignal TransductionSTAT Transcription FactorsBrefeldin ACycloheximideInterleukin-7Janus KinasesMatrix Metalloproteinase 13Protein Synthesis InhibitorsReceptor for Advanced Glycation End ProductsS100A4 protein, humanS100 Calcium-Binding Protein A4S100 ProteinsSTAT Transcription Factors

Identifiers

PMID19248116
PMCPMC2676111
OpenAlexW2169622156

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.