Cited by 259Ion Channels and ReceptorsPain Mechanisms and TreatmentsSkin Protection and Aging

UVB radiation generates sunburn pain and affects skin by activating epidermal TRPV4 ion channels and triggering endothelin-1 signaling

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Moore, Carlene, Cevikbas, Ferda, Pasolli, H. Amalia, Chen, Yong, Kong, Wei, Kempkes, Cordula, Parekh, Puja, Lee, Suk Hee +6 more·2013·Proceedings of the National Academy of Sciences

Abstract

At our body surface, the epidermis absorbs UV radiation. UV overexposure leads to sunburn with tissue injury and pain. To understand how, we focus on TRPV4, a nonselective cation channel highly expressed in epithelial skin cells and known to function in sensory transduction, a property shared with other transient receptor potential channels. We show that following UVB exposure mice with induced Trpv4 deletions, specifically in keratinocytes, are less sensitive to noxious thermal and mechanical stimuli than control animals. Exploring the mechanism, we find that epidermal TRPV4 orchestrates UVB-evoked skin tissue damage and increased expression of the proalgesic/algogenic mediator endothelin-1. In culture, UVB causes a direct, TRPV4-dependent Ca(2+) response in keratinocytes. In mice, topical treatment with a TRPV4-selective inhibitor decreases UVB-evoked pain behavior, epidermal tissue damage, and endothelin-1 expression. In humans, sunburn enhances epidermal expression of TRPV4 and endothelin-1, underscoring the potential of keratinocyte-derived TRPV4 as a therapeutic target for UVB-induced sunburn, in particular pain.

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  • Inhibiting TRPV4 expression can attenuate photoaging damage of epidermal cells and mouse skin, indicating potential of TRPV4 as a therapeutic target for photoaging.

    “Inhibiting the expression of TRPV4 can attenuate photoaging damage of epidermal cells and mouse skin, indicating the potential of TRPV4 as a therapeutic target for photoaging [93].”

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  1. Chen Y, et al. (2013) Temporomandibular joint pain: A critical role for Trpv4 in the trigeminal ganglion. Pain 18(8):1295-1304 10.1016/j.pain.2013.1004.1004. · DOI

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Authors
Moore, C., Cevikbas, F., Pasolli, H. A., Chen, Y., Kong, W., Kempkes, C., Parekh, P., Lee, S. H., Kontchou, N.-A., Yeh, I., Jokerst, N. M., Fuchs, E., Steinhoff, M., & Liedtke, W. B.
Affiliations
  • Liedtke Laboratory, Departments of Neurology and Neurobiology, and
  • University of California, San Francisco (US)
  • Fuchs Laboratory of Mammalian Cell Biology and Development and
  • Duke University (US)
  • Howard Hughes Medical Institute (US)
Venue
Proceedings of the National Academy of Sciences
Published
2013-08-08
Volume
110
Issue
34
Pages
E3225-34
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2160875760
Cited by
259
References
84
Citations by year
2026: 17 · 2025: 20 · 2024: 15 · 2023: 20 · 2022: 18 · 2021: 28 · 2020: 26 · 2019: 14 · 2018: 11 · 2017: 24 · 2016: 22 · 2015: 15 · 2014: 25 · 2013: 3
FWCI
12.49
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • DukeSpace (Duke University) (submittedVersion, cc-by-nc-nd)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • Howard Hughes Medical Institute
  • Deutsche Forschungsgemeinschaft
  • National Institutes of Health (2r01ar050452-21, AR050452)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (AR050452, R01AR059402, AR 31737, AR059402, R01AR031737, R01-AR050452)
  • National Institute of Biomedical Imaging and Bioengineering (P41EB015897)
  • National Institute of Dental and Craniofacial Research (DE018549, DE018549S2, DE018549S1, R01DE018549)
Topics
  • Life Sciences › Neuroscience › Sensory Systems › Ion Channels and Receptors
  • Health Sciences › Medicine › Physiology › Pain Mechanisms and Treatments
  • Health Sciences › Medicine › Dermatology › Skin Protection and Aging
Keywords
UV-B radiation, TRPV4, endothelin-1, keratinocytes, epidermis, TRP channels, thermal and mechanical nociception, calcium signaling, photodermatosis
MeSH terms
Analysis of Variance, Animals, Cells, Cultured, Epithelial Cells, Immunohistochemistry, Mice, Transgenic, Microscopy, Electron, Pain, Skin, Sunburn, Ultraviolet Rays, Signal Transduction, Endothelin-1, TRPV Cation Channels, Mice

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