Evidence map›Paper›PMID 31026383›Full record

ArticleBioFactors (Oxford, England)2019

Senescent dermal fibroblasts negatively influence fibroblast extracellular matrix-related gene expression partly via secretion of complement factor D.

Tomonobu Ezure, Misato Sugahara, Satoshi Amano

Open access · hybridAbstract read
In one paragraph

Article in BioFactors (Oxford, England), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.8field-weighted citation impact, top 7% 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

25 citing papers in PubMed, 42 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. The states of senescent cells.Biochemical Society transactions · 2025
    Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Rapamycin Attenuates HTissue engineering and regenerative medicine · 2024
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Bioactive Bacterial Nanocellulose Membranes Enriched withMaterials (Basel, Switzerland) · 2022
    Article
  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

3 authors at 1 institution in 1 country.

Tomonobu EzureGlobal Innovation Center, Shiseido, Yokohama, Japan.ORCID https://orcid.org/0000-0003-0090-8900
Misato SugaharaGlobal Innovation Center, Shiseido, Yokohama, Japan.
Satoshi AmanoGlobal Innovation Center, Shiseido, Yokohama, Japan.
Shiseido Group (Japan) · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aging is associated with a decrease of extracellular matrix and an increase of senescent cells in the dermal layer. Here, to examine whether and how senescent cells are involved in aging-related deterioration of the dermal layer, we cocultured dermal young fibroblasts (low-passage number) with senescent cells (high-passage number) in Transwells, in which the two cell types are separated by a semipermeable membrane. Young fibroblasts in coculture showed decreased collagen type I alpha 1 chain and elastin gene expression, and increased matrix metalloproteinase 1 (MMP1) gene expression. To identify causative factors, we compared gene expression of young and senescent cells and selected candidate secretory factors whose expression was increased by ≥2.5 in senescent fibroblasts. Then, we used siRNAs to knock down each of the 11 candidate genes in senescent fibroblasts in the coculture system. Knockdown of complement factor D (CFD) in senescent fibroblasts significantly reduced the increase of MMP1 in the cocultured young fibroblasts. In monocultures, treatment of young fibroblasts with CFD resulted in increased MMP1 gene expression, while knockdown of CFD in senescent fibroblasts decreased MMP1 gene expression. In addition, production of CFD was increased in culture medium of untreated senescent fibroblasts. Furthermore, CFD gene and protein expression were increased in the dermal layer of skin specimens from aged subjects (>70 years old), compared to young subjects (<20 years old). Overall, these results suggest that senescent cells negatively influence matrix production and promote degradation of nearby fibroblasts in the dermal layer, in part through secretion of CFD.

Indexed as

Cell ProliferationCellular SenescenceCoculture TechniquesCollagen Type ICollagen Type I, alpha 1 ChainComplement Factor DDiffusion Chambers, CultureElastinExtracellular MatrixFibroblastsGene Expression RegulationHumansMatrix Metalloproteinase 1Primary Cell CultureRNA, Small InterferingSignal TransductionCFD protein, humanCOL1A1 protein, humanCollagen Type ICollagen Type I, alpha 1 ChainComplement Factor DElastinMatrix Metalloproteinase 1MMP1 protein, humanRNA, Small InterferingCFDfibroblastMMP1SASPsenescence

Identifiers

PMID31026383
PMCPMC6850482
OpenAlexW2942032536

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.