Evidence map›Paper›PMID 33683743›Full record

ArticleExperimental dermatology2021

Keratinocyte-derived IL-1β induces PPARG downregulation and PPARD upregulation in human reconstructed epidermis following barrier impairment.

Stefan Blunder, Thomas Krimbacher, Verena Moosbrugger-Martinz, Robert Gruber, Matthias Schmuth, Sandrine Dubrac

Open access · hybridAbstract read
In one paragraph

Article in Experimental dermatology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

17 citing papers in PubMed, 28 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. IL-1β-induced STAT3 activation drives IL-17-producing CD8Journal of translational medicine · 2025
    Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. The role of PPAR in fungal keratitis.Frontiers in immunology · 2024
    Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Peroxisomal Fatty Acid Oxidation and Glycolysis Are Triggered in Mouse Models of Lesional Atopic Dermatitis.JID innovations : skin science from molecules to population health · 2021
    Article
  17. 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

6 authors at 1 institution in 1 country.

Stefan BlunderDepartment of Dermatology, Venereology and Allergology, Medical University of Innsbruck, Innsbruck, Austria.ORCID 0000-0002-6430-3639
Thomas KrimbacherDepartment of Dermatology, Venereology and Allergology, Medical University of Innsbruck, Innsbruck, Austria.
Verena Moosbrugger-MartinzDepartment of Dermatology, Venereology and Allergology, Medical University of Innsbruck, Innsbruck, Austria.
Robert GruberDepartment of Dermatology, Venereology and Allergology, Medical University of Innsbruck, Innsbruck, Austria.
Matthias SchmuthDepartment of Dermatology, Venereology and Allergology, Medical University of Innsbruck, Innsbruck, Austria.ORCID 0000-0002-4064-1334
Sandrine DubracDepartment of Dermatology, Venereology and Allergology, Medical University of Innsbruck, Innsbruck, Austria.
Innsbruck Medical University · AT

Funding

Austrian Science Fund FWF P 31662
6 · The paper itself

Abstract

Peroxisome proliferator-activated receptors (PPARs) are a family of nuclear hormone receptors. In skin, PPARs modulate inflammation, lipid synthesis, keratinocyte differentiation and proliferation and thus are important for skin barrier homeostasis. Accordingly, PPAR expression is altered in various skin conditions that entail epidermal barrier impairment, that is atopic dermatitis (AD) and psoriasis. Using human epidermal equivalents (HEEs), we established models of acute epidermal barrier impairment devoid of immune cells. We assessed PPAR and cytokine expression after barrier perturbation and examined effects of keratinocyte-derived cytokines on PPAR expression. We show that acetone or SDS treatment causes graded impairment of epidermal barrier function. Furthermore, we demonstrate that besides IL-1β and TNFα, IL-33 and TSLP are highly relevant markers for acute epidermal barrier impairment. Both SDS- and acetone-mediated epidermal barrier impairment reduce PPARG expression levels, whereas only SDS enhances PPARD expression. In line with findings in IL-1β and TNFα-treated HEEs, abrogation of IL-1 signalling restores PPARG expression and limits the increase of PPARD expression in SDS-induced epidermal barrier impairment. Thus, following epidermal barrier perturbation, keratinocyte-derived IL-1β and partly TNFα modulate PPARG and PPARD expression. These results emphasize a role for PPARγ and PPARβ/δ in acute epidermal barrier impairment with possible implications for diseases such as AD and psoriasis.

Indexed as

Cells, CulturedDown-RegulationEpidermisHumansInterleukin-1betaKeratinocytesPeroxisome Proliferator-Activated ReceptorsSkin DiseasesUp-RegulationIL1B protein, humanInterleukin-1betaPeroxisome Proliferator-Activated Receptorsepidermal barrier functionhuman epidermal equivalentskeratinocytesnuclear hormone receptorPPAR

Identifiers

PMID33683743
PMCPMC8451818
OpenAlexW3133559709

What OpenQuestion holds

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LicenceCC BY
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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.