Cited by 126Stress Responses and CortisolAdrenal Hormones and DisordersNeuropeptides and Animal Physiology

UVB activates hypothalamic-pituitary-adrenal axis in C57BL/6 mice

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Skobowiat, Cezary, Slominski, Andrzej T.·2015·Journal of Investigative Dermatology

Abstract

To test the hypothesis that UVB can activate the hypothalamic-pituitary-adrenal (HPA) axis, the shaved back skin of C57BL/6 mice was exposed to 400 mJ cm(-2) of UVB or was sham irradiated. After 12 and 24 hours of exposure, plasma, skin, brain, and adrenals were collected and processed to measure corticotropin-releasing hormone (CRH), urocortin (Ucn), β-endorphin (β-END), ACTH, and corticosterone (CORT) or the brain was fixed for immunohistochemical detection of CRH. UVB stimulated plasma levels of CRH, Ucn, β-END, ACTH, and CORT and increased skin expression of Ucn, β-END, and CORT at the gene and protein/peptide levels. UVB stimulated CRH gene and protein expression in the brain that was localized to the paraventricular nucleus of the hypothalamus. In adrenal glands, it increased mRNAs of melanocortin receptor type 2, steroidogenic acute regulatory protein (StAR), and gene coding of steroid 11β-hydroxylase (CYP11B1). Hypophysectomy abolished UVB stimulation of plasma, but not of skin CORT levels, and had no effect on UVB stimulation of CRH and Ucn levels in the plasma, demonstrating the requirement of an intact pituitary for the systemic effect. In conclusion, we identify mechanisms regulating body homeostasis by UVB through activation of the HPA axis that originate in the skin and require the pituitary for systemic effects.

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Crossref · 10.1038/jid.2014.450

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  • UVB upregulates expression of all elements of the HPA axis in mouse skin in vivo.

    “Mechanistic studies of mouse skin in vivo demonstrate that UVB can upregulate the expression of all the elements of the HPA axis, including corticotrophin-releasing hormone, proopiomelanocortin, β-endorphin, melanocortin receptor 2, steroidogenic enzymes, and glucocorticoid (corticosterone) [85].”

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  1. Schwarz T Luger TA Effect of UV irradiation on epidermal cell cytokine production J Photochem Photobiol B 1989 4 1 13 2509656

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Authors
Skobowiat, C., & Slominski, A. T.
Affiliations
University of Tennessee Health Science Center (US)
Corresponding author
Slominski, Andrzej T.
Venue
Journal of Investigative Dermatology
Publisher
Elsevier BV
Published
2015-06
Volume
135
Issue
6
Pages
1638-1648
ISSN
0022-202X (ISSN-L)
OpenAlex
W2023438823
Cited by
126
References
69
Citations by year
2026: 3 · 2025: 15 · 2024: 9 · 2023: 7 · 2022: 8 · 2021: 18 · 2020: 9 · 2019: 8 · 2018: 8 · 2017: 13 · 2016: 21 · 2015: 7
FWCI
6.71
Type
journal article
Language
en
Open access
Locations
  • Journal of Investigative Dermatology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Science Foundation (IOS-0918934)
  • National Institutes of Health (1R01AR056666-01A2, R01AR052190)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Adrenal Hormones and Disorders
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuropeptides and Animal Physiology
Keywords
UV-B radiation, hypothalamic-pituitary-adrenal axis, corticotropin-releasing factor, urocortin, beta-endorphin, ACTH, corticosterone, paraventricular nucleus, skin, adrenal gland, steroidogenic acute regulatory protein, CYP11B1, hypophysectomy, C57BL/6 mice
MeSH terms
Adrenal Glands, Adrenocorticotropic Hormone, Animals, beta-Endorphin, Brain, Corticosterone, Corticotropin-Releasing Hormone, Female, Gene Expression Regulation, Hypothalamo-Hypophyseal System, Mice, Inbred C57BL, Pituitary Gland, Pituitary-Adrenal System, RNA, Messenger, Skin, Steroid 11-beta-Hydroxylase, Ultraviolet Rays, Mice, Urocortins

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