Evidence map›Paper›PMID 23601157›Full record

ArticleAging cell2013

Expression of catalytically active matrix metalloproteinase-1 in dermal fibroblasts induces collagen fragmentation and functional alterations that resemble aged human skin.

Wei Xia, Craig Hammerberg, Yong Li, Tianyuan He, Taihao Quan, John J Voorhees, Gary J Fisher

Open access · greenAbstract read
In one paragraph

Article in Aging cell, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
5.2field-weighted citation impact, top 4% 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

40 citing papers in PubMed, 82 citations in OpenAlex.

  1. Article
  2. Danggui Buxue Decoction Attenuates HClinical, cosmetic and investigational dermatology · 2026
    Article
  3. The Impact of Ageing on Fibrillar Collagens.Sub-cellular biochemistry · 2026
    Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Current issues in molecular biology · 2025
    Article
  9. Article
  10. Review
  11. Article
  12. Skin Aging and the Upcoming Role of Ferroptosis in Geroscience.International journal of molecular sciences · 2024
    Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
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

7 authors at 1 institution in 1 country.

Wei XiaDepartment of Dermatology, University of Michigan, 1301 E Catherine, R6447 Med Sci I, Ann Arbor, MI 48109-5609, USA.
Craig Hammerberg
Yong Li
Tianyuan He
Taihao Quan
John J Voorhees
Gary J Fisher
University of Michigan · US

Funding

Transforming Growth Factor-Beta (TGF-b) Signaling in Photoaged and ChronologicallR01AG019364 · NIA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI FISHER, GARY J, QUAN, TAIHAO · 2002 to 2014
$3.0M
Collagenase degradation in extracellular matrix in agingR01AG025186 · NIA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI FISHER, GARY J · 2006 to 2010
$1.8M
Regulation of Extracellular Matrix Homeostatsis in Skin AgingR01AG031452 · NIA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI FISHER, GARY J · 2009 to 2013
$1.5M
NIA NIH HHS R01 AG019364NIA NIH HHS R01-AG019364NIA NIH HHS R01 AG025186NIA NIH HHS R01-AG025186NIA NIH HHS R01-AG025186-S1NIA NIH HHS R01 AG031452NIA NIH HHS R01-AG031452
6 · The paper itself

Abstract

Increased expression of matrix metalloproteinase-1 (MMP-1) and reduced production of type I collagen by dermal fibroblasts are prominent features of aged human skin. We have proposed that MMP-1-mediated collagen fibril fragmentation is a key driver of age-related decline of skin function. To investigate this hypothesis, we constructed, characterized, and expressed constitutively active MMP-1 mutant (MMP-1 V94G) in adult human skin in organ culture and fibroblasts in three-dimensional collagen lattice cultures. Expression of MMP-1 V94G in young skin in organ culture caused fragmentation and ultrastructural alterations of collagen fibrils similar to those observed in aged human skin in vivo. Expression of MMP-1 V94G in dermal fibroblasts cultured in three-dimensional collagen lattices caused substantial collagen fragmentation, which was markedly reduced by MMP-1 siRNA-mediated knockdown or MMP inhibitor MMI270. Importantly, fibroblasts cultured in MMP-1 V94G-fragmented collagen lattices displayed many alterations observed in fibroblasts in aged human skin, including reduced cytoplasmic area, disassembled actin cytoskeleton, impaired TGF-β pathway, and reduced collagen production. These results support the concept that MMP-1-mediated fragmentation of dermal collagen fibrils alters the morphology and function of dermal fibroblasts and provide a foundation for understanding specific mechanisms that link collagen fibril fragmentation to age-related decline of fibroblast function.

Indexed as

Skin AgingActinsAdenoviridaeAdultAged, 80 and overCells, CulturedCell ShapeCollagen Type IDermisEnzyme ActivationFibroblastsGene Expression Regulation, EnzymologicHEK293 CellsHumansHydroxamic AcidsMatrix Metalloproteinase 1ActinsCGS 27023ACollagen Type IHydroxamic AcidsMatrix Metalloproteinase 1MMP1 protein, humanPyrazinesRNA, Small InterferingSulfonamidesagingextracellular matrixmatrix metalloproteinasemolecular biology of aging

Identifiers

PMID23601157
PMCPMC3738263
OpenAlexW2113356275

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.