Evidence map›Paper›PMID 19137636›Full record

ArticleClinical and experimental immunology2009

Spontaneous and cytokine induced expression and activity of matrix metalloproteinases in human colonic epithelium.

G Pedersen, T Saermark, T Kirkegaard, J Brynskov

Open access · greenAbstract read
In one paragraph

Article in Clinical and experimental immunology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
1.3field-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

41 citing papers in PubMed, 71 citations in OpenAlex.

  1. Article
  2. Review
  3. Inflammatory bowel disease and extracellular matrix: when victim becomes double agent.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
    Review
  4. Review
  5. Article
  6. The functional role of the extracellular matrix in inflammatory bowel disease associated gut fibrosis.Matrix biology : journal of the International Society for Matrix Biology · 2025
    Review
  7. Article
  8. Article
  9. Matrix metalloproteinases in intestinal fibrosis.Journal of Crohn's & colitis · 2024
    Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Fat of the Gut: Epithelial Phospholipids in Inflammatory Bowel Diseases.International journal of molecular sciences · 2021
    Review
  15. Digestive Inflammation: Role of Proteolytic Dysregulation.International journal of molecular sciences · 2021
    Review
  16. Review
  17. Review
  18. Review
  19. Article
  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

4 authors at 2 institutions in 2 countries.

G PedersenDepartment of Gastroenterology, Herlev University Hospital, Herlev, Denmark. giped@dadlnet.dk
T Saermark
T Kirkegaard
J Brynskov
Herlev Hospital · DKGävle Hospital · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Matrix metalloproteinases (MMPs) have been implicated in tissue damage associated with inflammatory bowel disease (IBD).As the role of the intestinal epithelium in this process is unknown, we determined MMP expression and enzyme activity in human colonic epithelial cells (CEC). MMP mRNA expression was assessed by reverse transcription-polymerase chain reaction in HT-29 and DLD-1 cells and in CEC isolated from biopsies from IBD and control patients. Total MMP activity in the cells was measured by a functional assay, based on degradation of a fluorescent synthetic peptide containing the specific bond for MMP cleavage. HT-29 and DLD-1 expressed several MMPs and levels of MMP-3, -10 and -13 mRNA expression were increased significantly by tumour necrosis factor (TNF)-alpha exposure. Transcripts of MMP-1, -3, -7, -9, -10 and -12 were detected in CECs and all, except MMP12, at significantly increased levels in cells from inflamed IBD mucosa. MMP-2 and -8 mRNA were expressed inconsistently and MMP-11, -13 and -14 mRNA undetectable. Proteolytic MMP activity was detected in CEC supernatants and the level was increased significantly in inflamed IBD epithelium. The enzyme activity was inhibited strongly by a specific MMP inhibitor (GM 6001). A significant TNF-alpha-mediated increase in MMP enzyme activity was also detected in HT-29 cells in vitro. In conclusion, the expression of several MMPs as well as the level of functional MMPactivity is increased in CEC from patients with active IBD. The results suggest that MMPs released by the intestinal epithelium may be involved in the pathogenesis of IBD by promoting local mucosal damage.

Indexed as

AdultAgedCell Line, TransformedCells, CulturedColonCytokinesFemaleGene Expression Regulation, EnzymologicHumansInflammatory Bowel DiseasesIntestinal MucosaMaleMatrix MetalloproteinasesMiddle AgedReverse Transcriptase Polymerase Chain ReactionRNA, MessengerCytokinesMatrix MetalloproteinasesRNA, Messenger

Identifiers

PMID19137636
PMCPMC2675257
OpenAlexW2017356934

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.