Cited by 50Skin Protection and Agingmelanin and skin pigmentationWound Healing and Treatments

Dietary Suberic Acid Protects Against UVB-Induced Skin Photoaging in Hairless Mice

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Kang, Wesuk, Choi, Dabin, Park, Taesun·2019·Nutrients

Abstract

Ultraviolet (UV) radiation is a major cause of skin photoaging, which is mainly characterized by dryness and wrinkle formation. In the current study, we investigated the anti-photoaging effects of dietary suberic acid, a naturally occurring photochemical, using UVB-irradiated hairless mice. Mice were exposed to UVB three times weekly and fed diets containing three different suberic acid concentrations (0.05%, 0.1% and 0.2%) for 10 weeks. It was found that suberic acid inhibited UVB-induced skin dryness, wrinkle formation, and epidermal thickness in hairless mice. In parallel with phenotypic changes, suberic acid attenuated UVB-induced matrix metalloproteinase (MMP) genes (MMP1a, MMP1b, MMP3, and MMP9), while accelerating collagen genes including collagen type I alpha 1 chain (COL1A1), COL1A2, and COL3A1 and hyaluronic acid synthases genes (HAS1, HAS2 and HAS3). We further demonstrated that suberic acid upregulated the molecules involved in the transforming growth factor–β (TGF-β)/SMAD pathway, but downregulated the molecules participating in the mitogen-activated protein kinase (MAPK)/activator protein 1 (AP-1) signaling in UVB-irritated hairless mice. Collectively, we propose that suberic acid may be a promising agent for treating skin photoaging.

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  • Suberic acid upregulates expression of molecules in the TGF-beta/Smad pathway and inactivates the MAPK/AP-1 pathway.

    “Mechanistically, suberic acid upregulates the expression of molecules in the TGF-β/Smad pathway and inactivates the MAPK/AP-1 pathway.”
  • Supplementation with dietary suberic acid protected against UVB-induced skin photoaging in hairless mice.

    “Supplementation with dietary suberic acid, a dibasic fatty acid, protected against UVB-induced skin photoaging in hairless mice.”
  • Oral administration of suberic acid restrained UVB-induced skin dryness, wrinkle formation, and epidermal thickness.

    “Oral administration of suberic acid restrained UVB-induced skin dryness, wrinkle formation, and epidermal thickness.”
  • Oral suberic acid downregulated expression of MMP-1, MMP-3, and MMP-9 and enhanced expression of collagen and HA in back skin of mice.

    “Oral suberic acid downregulated the expression of MMP-1, MMP-3, and MMP-9 and enhanced the expression of collagen and HA in the back skin of mice [129].”

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Authors
Kang, W., Choi, D., & Park, T.
Affiliations
Yonsei University (KR)
Corresponding author
Park, Taesun
Venue
Nutrients
Publisher
MDPI AG
Published
2019-12-04
Volume
11
Issue
12
Pages
2948
ISSN
2072-6643 (ISSN-L)
OpenAlex
W2994213268
Cited by
49
References
38
Citations by year
2026: 7 · 2025: 8 · 2024: 9 · 2023: 4 · 2022: 12 · 2021: 7 · 2020: 2
FWCI
5.29
Type
journal article
Language
en
Open access
Locations
  • Nutrients (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
National Research Foundation of Korea (2019R1A2C2003340)
Topics
  • Health Sciences › Medicine › Dermatology › Skin Protection and Aging
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › melanin and skin pigmentation
  • Health Sciences › Medicine › Rehabilitation › Wound Healing and Treatments
Keywords
suberic acid, photoaging, UVB irradiation, dietary supplementation, dry skin, wrinkle formation, epidermal thickness, matrix metalloproteinases, collagen synthesis, hyaluronan synthase, TGF-β/Smad signaling, MAPK/AP-1 signaling, hairless mice
MeSH terms
Collagen Type I, alpha 1 Chain, Administration, Oral, Animals, Caprylates, Cell Line, Collagen, Dicarboxylic Acids, Diet, Female, Humans, Mice, Hairless, Skin, Ultraviolet Rays, Skin Aging, Protective Agents, Mice

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