Evidence map›Paper›PMID 12947137›Full record

ArticleThorax2003

Inhibition of MMP-9 expression by PPARgamma activators in human bronchial epithelial cells.

M Hetzel, D Walcher, M Grüb, H Bach, V Hombach, N Marx

Open access · bronzeAbstract read
In one paragraph

Article in Thorax, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

28 citing papers in PubMed, 74 citations in OpenAlex.

  1. Trial
  2. Matrix Metalloproteinase-9 Signaling Regulates Colon Barrier Integrity in Models of HIV Infection.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2024
    Article
  3. Article
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  5. Activation of PPARPPAR research · 2022
    Article
  6. Review
  7. Article
  8. Bioinformatics andAdvanced pharmaceutical bulletin · 2021
    Article
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  13. Review
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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 1 institution in 1 country.

M HetzelDepartment of Internal Medicine II, University of Ulm, Robert-Koch-Strasse 8, D-89081 Ulm, Germany. martin.hetzel@medizin.uni-ulm.de
D Walcher
M Grüb
H Bach
V Hombach
N Marx
Universität Ulm · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe release of matrix degrading enzymes such as matrix metalloproteinase 9 (MMP-9) from bronchial epithelial cells is critically involved in airway wall remodelling in chronic inflammatory processes of the respiratory system. MMP-9 expression is induced by inflammatory mediators such as tumour necrosis factor (TNF)-alpha, but to date nothing is known about the mechanisms of inhibition of MMP-9 expression in these cells.

methodsA study was undertaken to examine whether activators of the nuclear transcription factor peroxisome proliferator activated receptor gamma (PPARgamma) might modulate MMP-9 expression in two different bronchial epithelial cell lines.

resultsPPARgamma was expressed and was functionally active in NL20 and BEAS cells. Activation of PPARgamma by rosiglitazone or pioglitazone significantly reduced TNF-alpha and PMA induced MMP-9 gelatinolytic activity in a concentration dependent manner in both cell lines, but did not alter the expression of tissue inhibitor of MMPs type 1 (TIMP-1), the local inhibitor of MMP-9. Northern blot analysis revealed a decrease in MMP-9 mRNA expression following treatment with PPARgamma which resulted from the inhibition of NF-kappaB activation in these cells, as determined by transient transfection assays and electromobility shift assays.

conclusionActivation of PPARgamma in human bronchial epithelial cells limits the expression of matrix degrading MMP-9. This might have therapeutic applications in chronic inflammatory processes of the respiratory system.

Indexed as

ThiazolidinedionesBlotting, NorthernBronchiBronchitisCells, CulturedEnzyme-Linked Immunosorbent AssayEpithelial CellsHumansHypoglycemic AgentsMatrix Metalloproteinase 9Matrix Metalloproteinase InhibitorsPioglitazoneReceptors, Cytoplasmic and NuclearRespiratory MucosaRosiglitazoneThiazolesHypoglycemic AgentsMatrix Metalloproteinase 9Matrix Metalloproteinase InhibitorsPioglitazoneReceptors, Cytoplasmic and NuclearRosiglitazoneThiazolesThiazolidinedionesTissue Inhibitor of Metalloproteinase-1Transcription Factors

Identifiers

PMID12947137
PMCPMC1746807
OpenAlexW2119321610

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.