Cited by 79Peroxisome Proliferator-Activated ReceptorsAdipose Tissue and MetabolismSkin Protection and Aging

UV modulation of subcutaneous fat metabolism

Open access
Kim, Eun Ju, Kim, Yeon Kyung, Kim, Ji Eun, Kim, Sojeong, Kim, Min-Kyoung, Park, Chi-Hyun, Chung, Jin Ho·2011·Journal of Investigative Dermatology

Abstract

Adipose tissue is not a homogeneous organ. Visceral fat accumulation is associated with atherosclerosis and metabolic syndrome, but peripheral subcutaneous (SC) fat accumulation may be protective. Human skin is continuously exposed to UV light. UV can penetrate the epidermis and into the mid-dermis, but not into the SC fat tissue of human skin. However, we here show that SC fat tissue in chronically sun-damaged skin contains less fat than naturally aged skin, and even a single UV exposure of human skin reduced lipid synthesis in the underlying SC fat tissue through transcriptional regulation of the lipogenic enzymes, acetyl CoA carboxylase, fatty acid synthase, and stearoyl CoA desaturase, of their transcription activator sterol regulatory element-binding protein-1 (SREBP-1), and of two key adipogenic transcription factors, CCAAT/enhancer-binding protein α and peroxisome proliferator-activated receptor γ. The cytokines IL-6, IL-8, monocyte chemoattractant protein-3 (MCP-3), and placenta growth factor, produced by keratinocytes and fibroblasts in response to UV, may be responsible for the reduction of SC fat, and these cytokines, except MCP-3, may act by upregulation of suppressor of cytokine signaling-3 expression. Our data demonstrate the inhibitory effects of UV light on SC lipid synthesis and provide proof of concept for targeting cytokines for SC fat tissue modification.

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Crossref · 10.1038/jid.2011.106

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  • UV radiation significantly affects SWAT metabolism, reducing free fatty acid and triglyceride amounts in sun-exposed skin compared with sun-protected skin.

    “The amounts of free fatty acid and triglycerides in the SWAT of the photoaged forearm (sun-exposed skin) were significantly less than those in the buttocks (sun-protected skin) of the same elderly individuals [48].”

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Authors
Kim, E. J., Kim, Y. K., Kim, J. E., Kim, S., Kim, M.-K., Park, C.-H., & Chung, J. H.
Affiliations
Seoul National University (KR)
Corresponding author
Chung, Jin Ho
Venue
Journal of Investigative Dermatology
Publisher
Elsevier BV
Published
2011-08
Volume
131
Issue
8
Pages
1720-1726
ISSN
0022-202X (ISSN-L)
OpenAlex
W2032272551
Cited by
79
References
38
Citations by year
2026: 3 · 2025: 3 · 2024: 6 · 2023: 5 · 2022: 9 · 2021: 8 · 2020: 6 · 2019: 6 · 2018: 4 · 2017: 6 · 2016: 7 · 2015: 5 · 2014: 5 · 2013: 3 · 2012: 1
FWCI
1.43
Type
journal article
Language
en
Open access
Locations
  • Journal of Investigative Dermatology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Ministry of Health and Welfare (A060160)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Peroxisome Proliferator-Activated Receptors
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Health Sciences › Medicine › Dermatology › Skin Protection and Aging
Keywords
ultraviolet radiation, subcutaneous adipose tissue, adipose tissue, lipogenesis, SREBP1, C/EBPα, PPARγ, acetyl-CoA carboxylase, fatty acid synthase, stearoyl-CoA desaturase, keratinocytes, fibroblasts, cytokines, interleukin-6, interleukin-8, MCP-3, placental growth factor, SOCS3, skin aging, sun damage, adipogenesis
MeSH terms
Placenta Growth Factor, Epidermal Cells, Adult, Aged, Cell Communication, Cells, Cultured, Epidermis, Female, Fibroblasts, Humans, Male, Pregnancy Proteins, Ultraviolet Rays, Signal Transduction, Skin Aging, Keratinocytes, Interleukin-6, Interleukin-8, Adipocytes, Subcutaneous Fat, Lipid Metabolism, Chemokine CCL7, Young Adult

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