Evidence map›Paper›PMID 19690165›Full record

ArticleThe Journal of biological chemistry2009

The proteasome is an integral part of solar ultraviolet a radiation-induced gene expression.

Betul Catalgol, Isabella Ziaja, Nicolle Breusing, Tobias Jung, Annika Höhn, Buket Alpertunga, Peter Schroeder, Niki Chondrogianni, Efstathios S Gonos, Isabelle Petropoulos and 4 more

Registry-linked trialOpen access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05202652 (A Randomized, Placebo-controlled Prospective Trial for the Evaluation of Anti-oxidant, Anti-aging and Wellbeing Effects of a Novel Nutraceutical Formulation), which is not on this map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
7.3field-weighted citation impact, top 3% 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.

NCT05202652 nacompletednot on this mapstarted 2019, after this paper: background citation

A Randomized, Placebo-controlled Prospective Trial for the Evaluation of Anti-oxidant, Anti-aging and Wellbeing Effects of a Novel Nutraceutical Formulation (HealthSpan)

TypeinterventionalSponsorNational Hellenic Research FoundationRan2019 to 2021Enrolled122ConditionsAging, Well Aging, Oxidative StressArmsHealthSpan, Placebo
3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 67 citations in OpenAlex.

  1. Anti-Skin Aging Potential of Methoxyflavones fromFoods (Basel, Switzerland) · 2025
    Article
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  5. UVA-induced metabolic changes in non-malignant skin cells and the potential role of pyruvate as antioxidant.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2023
    Article
  6. Review
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  9. Article
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  15. Oxidative Stress: Harms and Benefits for Human Health.Oxidative medicine and cellular longevity · 2017
    Review
  16. Article
  17. Review
  18. Article
  19. 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

14 authors at 6 institutions in 4 countries.

Betul CatalgolInstitute of Biological Chemistry and Nutrition, University of Hohenheim, 70593 Stuttgart, Germany.
Isabella Ziaja
Nicolle Breusing
Tobias Jung
Annika Höhn
Buket Alpertunga
Peter Schroeder
Niki Chondrogianni
Efstathios S Gonos
Isabelle Petropoulos
Bertrand Friguet
Lars-Oliver Klotz
Jean Krutmann
Tilman Grune
Leibniz Institute of Environmental Medicine · DEUniversity of Hohenheim · DENational Hellenic Research Foundation · GRCentre National de la Recherche Scientifique · FRIstanbul University · TRSorbonne Université · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Solar ultraviolet (UV) A radiation is a well known trigger of signaling responses in human skin fibroblasts. One important consequence of this stress response is the increased expression of matrix metalloproteinase-1 (MMP-1), which causes extracellular protein degradation and thereby contributes to photoaging of human skin. In the present study we identify the proteasome as an integral part of the UVA-induced, intracellular signaling cascade in human dermal fibroblasts. UVA-induced singlet oxygen formation was accompanied by protein oxidation, the cross-linking of oxidized proteins, and an inhibition of the proteasomal system. This proteasomal inhibition subsequently led to an accumulation of c-Jun and phosphorylated c-Jun and activation of activator protein-1, i.e. transcription factors known to control MMP-1 expression. Increased transcription factor activation was also observed if the proteasome was inhibited by cross-linked proteins or lactacystin, indicating a general mechanism. Most importantly, inhibition of the proteasome was of functional relevance for UVA-induced MMP-1 expression, because overexpression of the proteasome or the protein repair enzyme methionine sulfoxide reductase prevented the UVA-induced induction of MMP-1. These studies show that an environmentally relevant stimulus can trigger a signaling pathway, which links intracellular and extracellular protein degradation. They also identify the proteasome as an integral part of the UVA stress response.

Indexed as

Ultraviolet RaysCells, CulturedFibroblastsGene Expression RegulationHumansMatrix Metalloproteinase 1Proteasome Endopeptidase ComplexSignal TransductionSkinStress, PhysiologicalSunlightMatrix Metalloproteinase 1Proteasome Endopeptidase Complex

Identifiers

PMID19690165
PMCPMC2781562
OpenAlexW2027008375

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.