Evidence map›Paper›PMID 26298287›Full record

ArticleMolecular and cellular biochemistry2015

Methotrexate modulates the expression of MMP-1 and type 1 collagen in dermal fibroblast.

Layla Nabai, Ruhangiz T Kilani, Farzian Aminuddin, Yunyuan Li, Aziz Ghahary

Abstract read
PubMed Publisher
In one paragraph

Article in Molecular and cellular biochemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
3.2field-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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Fibroblasts in heterotopic ossification: mechanisms and therapeutic targets.International journal of biological sciences · 2025
    Review
  7. Article
  8. Article
  9. Review
  10. Article
  11. Intravitreal injection of methotrexate in persistent diabetic macular edema: a 6-month study.Medical hypothesis, discovery & innovation ophthalmology journal · 2023
    Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. The role of bone resorption in the etiopathogenesis of acquired middle ear cholesteatoma.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2017
    Review
  17. Article
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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

5 authors at 1 institution in 1 country.

Layla NabaiBC Professional Firefighters' Burn and Wound Healing Research Laboratory, Department of Surgery/Plastic Surgery, University of British Columbia, Vancouver, Canada.
Ruhangiz T KilaniBC Professional Firefighters' Burn and Wound Healing Research Laboratory, Department of Surgery/Plastic Surgery, University of British Columbia, Vancouver, Canada.
Farzian AminuddinBC Professional Firefighters' Burn and Wound Healing Research Laboratory, Department of Surgery/Plastic Surgery, University of British Columbia, Vancouver, Canada.
Yunyuan LiBC Professional Firefighters' Burn and Wound Healing Research Laboratory, Department of Surgery/Plastic Surgery, University of British Columbia, Vancouver, Canada.
Aziz GhaharyBC Professional Firefighters' Burn and Wound Healing Research Laboratory, Department of Surgery/Plastic Surgery, University of British Columbia, Vancouver, Canada. aghahary@mail.ubc.ca.
University of British Columbia · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

Methotrexate (MTX), an anti-metabolite and anti-inflammatory drug, has been used to effectively manage and prevent keloids, but its mechanism(s) of action has not been elucidated. Our study sought to evaluate the effect of MTX on the production of key extra cellular matrix components, collagen, and matrix metalloproteinase-1 (MMP-1), produced by fibroblasts and involved in development of fibrosis. The proliferation and viability of cultured human dermal fibroblasts in response to different concentrations of MTX were determined using cell counting and MTT assay, respectively. Western blot analysis was used to determine the levels of both intracellular and secreted type 1 collagen and MMP-1. The results showed no significant changes in the proliferation of fibroblasts treated with 50 ng/ml of MTX as compared to that of control. Under the same experimental conditions, the level of secreted and intracellular type I collagen was markedly reduced and, conversely, the level of MMP-1 increased in treated neonatal, adult, and hypertrophic scar fibroblasts as compared with those of controls. The possible involvement of MTX-induced extracellular signal-regulated kinase 1/2 (ERK1/2) pathway in MMP-1 production was also studied and the result showed an increase in phosphorylated ERK 1/2 in response to MTX treatment. In summary, the findings of this study revealed that MTX significantly reduced collagen production in different strains of fibroblasts derived from neonatal, adult, and hypertrophic scar tissues, while under the same experimental conditions, it increased the expression of MMP-1. As such, our findings validate and identify a potential mechanism through which MTX functions as an anti-fibrogenic factor in treating fibroproliferative disorders.

Indexed as

AdultAntimetabolites, AntineoplasticCell ProliferationCells, CulturedCell SurvivalCicatrix, HypertrophicCollagen Type IDermisExtracellular MatrixExtracellular Signal-Regulated MAP KinasesFibroblastsHumansInfant, NewbornMatrix Metalloproteinase 1MethotrexateAntimetabolites, AntineoplasticCollagen Type IExtracellular Signal-Regulated MAP KinasesMatrix Metalloproteinase 1MethotrexateMMP1 protein, humanCollagenFibrosisMatrix metalloproteinaseMethotrexate

Identifiers

PMID26298287
OpenAlexW1939544840

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.