Cited by 72Telomeres, Telomerase, and SenescenceMicroRNA in disease regulationProteoglycans and glycosaminoglycans research

miR-23a-3p Causes Cellular Senescence by Targeting Hyaluronan Synthase 2: Possible Implication for Skin Aging

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Röck, Katharina, Tigges, Julia, Sass, Steffen, Schütze, Alexandra, Florea, Ana-Maria, Fender, Anke C., Theis, Florian J., Krutmann, Jean +4 more·2015·Journal of Investigative Dermatology

Abstract

Even though aging and cellular senescence appear to be linked, the biological mechanisms interconnecting these two processes remain to be unravelled. Therefore, microRNA (miRNA/miR) profiles were analyzed ex vivo by means of gene array in fibroblasts isolated from young and old human donors. Expression of several miRNAs was positively correlated with donor age. Among them, miR-23a-3p was shown to target hyaluronan synthase 2 (HAS2). HA is a polysaccharide of the extracellular matrix that critically regulates the phenotype of fibroblasts. Indeed, both aged and senescent fibroblasts showed increased miR-23a-3p expression and secreted significantly lower amounts of HA compared with young and non-senescent fibroblasts. Ectopic overexpression of miR-23a-3p in non-senescent fibroblasts led to decreased HAS2-mediated HA synthesis, upregulation of senescence-associated markers, and decreased proliferation. In addition, siRNA-mediated downregulation of HAS2 and pharmacological inhibition of HA synthesis by 4-methylumbelliferone mimicked the effects of miR-23a-3p. In vivo, miR-23a-3p was upregulated and HAS2 was downregulated in the skin of old mice compared with young mice. Inhibition of HA synthesis by 4-methylumbelliferone in mice reduced dermal hydration and viscoelasticity, thereby mimicking an aged skin phenotype. Taken together, these findings appear to link miR-23a-3p and the HA microenvironment as effector mechanisms in both dermal aging and senescence.

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Crossref · 10.1038/jid.2014.422

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Authors
Röck, K., Tigges, J., Sass, S., Schütze, A., Florea, A.-M., Fender, A. C., Theis, F. J., Krutmann, J., Boege, F., Fritsche, E., Reifenberger, G., & Fischer, J. W.
Affiliations
  • Leibniz Institute of Environmental Medicine (DE)
  • Helmholtz Munich (DE)
  • Düsseldorf University Hospital (DE)
  • Heinrich Heine University Düsseldorf (DE)
Corresponding author
Fischer, Jens W.
Venue
Journal of Investigative Dermatology
Publisher
Elsevier BV
Published
2015-02
Volume
135
Issue
2
Pages
369-377
ISSN
0022-202X (ISSN-L)
OpenAlex
W2075264446
Cited by
72
References
41
Citations by year
2025: 7 · 2024: 5 · 2023: 5 · 2022: 5 · 2021: 11 · 2020: 8 · 2019: 8 · 2018: 3 · 2017: 6 · 2016: 8 · 2015: 5 · 2014: 1
FWCI
4.43
Type
journal article
Language
en
Open access
Locations
  • Journal of Investigative Dermatology (publishedVersion)
  • PubMed (publishedVersion)
  • Site cant be reached (submittedVersion)
Funders
  • Bundesministerium für Bildung und Forschung
  • Deutsche Forschungsgemeinschaft (SFB 728)
Topics
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Proteoglycans and glycosaminoglycans research
Keywords
miR-23a-3p, cellular senescence, HAS2, hyaluronic acid, skin aging, dermal fibroblasts, extracellular matrix, 4-methylumbelliferone, skin viscoelasticity
MeSH terms
Hyaluronan Synthases, Adult, Aged, Animals, Female, Fibroblasts, Humans, Hyaluronic Acid, Hymecromone, Mice, Inbred C57BL, Middle Aged, Glucuronosyltransferase, Skin Aging, Cellular Senescence, 3' Untranslated Regions, MicroRNAs, Cyclin-Dependent Kinase Inhibitor p21, Mice

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