Cited by 77Skin Protection and AgingPsoriasis: Treatment and PathogenesisT-cell and B-cell Immunology

Skin-Resident T Cells Sense Ultraviolet Radiation–Induced Injury and Contribute to DNA Repair

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MacLeod, Amanda S, Rudolph, Ross, Corriden, Ross, Ye, Ivan, Garijo, Olivia, Havran, Wendy L·2014·The Journal of Immunology

Abstract

Skin-resident T cells have been shown to play important roles in tissue homeostasis and wound repair, but their role in UV radiation (UVR)–mediated skin injury and subsequent tissue regeneration is less clear. In this study, we demonstrate that acute UVR rapidly activates skin-resident T cells in humans and dendritic epidermal γδ T cells (DETCs) in mice through mechanisms involving the release of ATP from keratinocytes. Following UVR, extracellular ATP leads to an increase in CD69 expression, proliferation, and IL-17 production, and to changes in DETC morphology. Furthermore, we find that the purinergic receptor P2X7 and caspase-1 are necessary for UVR-induced IL-1 production in keratinocytes, which increases IL-17 secretion by DETCs. IL-17, in turn, induces epidermal TNF-related weak inducer of apoptosis and growth arrest and DNA damage–associated gene 45, two molecules linked to the DNA repair response. Finally, we demonstrate that DETCs and human skin-resident T cells limit DNA damage in keratinocytes. Taken together, our findings establish a novel role for skin-resident T cells in the UVR-associated DNA repair response and underscore the importance of skin-resident T cells to overall skin regeneration.

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Crossref · 10.4049/jimmunol.1303297

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  • Recent mouse studies revealed that murine β-defensin 3 and Reg3γ, but not S100A8, have wound healing-promoting properties as they could rescue defective wound healing in IL-17A−/− mice, which show defective AMP induction.

    “In fact, recent mouse studies further revealed that murine β-defensin 3 (the ortholog of hBD2) and Reg3γ (ortholog of REG3A), but not S100A8, have wound healing-promoting properties as they could rescue defective wound healing in IL-17A−/− mice, which show defective AMP induction.6,30”

    From The Innate Immune System in Acute and Chronic Wounds (2016) · cites this paper as [30]

  • Keratinocytes produce large amounts of IL-1α and less IL-1β, whereas epidermal DCs, called Langerhans cells, as well as wound-infiltrating macrophages produce mostly IL-1β, but not IL-1α.

    “Keratinocytes produce large amounts of IL-1α and less IL-1β,30,52 whereas epidermal DCs, called Langerhans cells, as well as wound-infiltrating macrophages produce mostly IL-1β, but not IL-1α.”

    From The Innate Immune System in Acute and Chronic Wounds (2016) · cites this paper as [30]

  • Skin-resident T cells produce increased levels of IL-17A early upon skin injury and UV-induced skin damage.

    “Skin-resident T cells produce increased levels of IL-17A early upon skin injury and UV-induced skin damage.25,30”

    From The Innate Immune System in Acute and Chronic Wounds (2016) · cites this paper as [30]

  • Skin injury, induced either by UV radiation, skin irritants, or trauma, has been shown to liberate ATP into the extracellular space, which acts as a trigger for NALP3 inflammasome activation and subsequent IL-1β secretion.

    “Furthermore, skin injury, induced either by UV radiation, skin irritants, or trauma, has been shown to liberate ATP into the extracellular space, which acts as a trigger for NALP3 inflammasome activation and subsequent IL-1β secretion.30,52,54”

    From The Innate Immune System in Acute and Chronic Wounds (2016) · cites this paper as [30]

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Authors
MacLeod, A. S., Rudolph, R., Corriden, R., Ye, I., Garijo, O., & Havran, W. L.
Affiliations
  • Scripps Research Institute (US)
  • University of California San Diego (US)
Corresponding author
  • Ye, Ivan
  • Garijo, Olivia
Venue
The Journal of Immunology
Published
2014-06
Volume
192
Issue
12
Pages
5695-5702
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W2146062294
Cited by
77
References
59
Citations by year
2026: 4 · 2025: 6 · 2024: 3 · 2023: 3 · 2022: 7 · 2021: 5 · 2020: 11 · 2019: 7 · 2018: 9 · 2017: 7 · 2016: 6 · 2015: 8
FWCI
7.68
Type
journal article
Language
en
Open access
Locations
  • The Journal of Immunology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of Allergy and Infectious Diseases (T32AI007244, R01AI036964)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (K08AR063729)
Topics
  • Health Sciences › Medicine › Dermatology › Skin Protection and Aging
  • Life Sciences › Immunology and Microbiology › Immunology › Psoriasis: Treatment and Pathogenesis
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
Keywords
skin-resident T cells, ultraviolet radiation, DNA repair, dendritic epidermal T cells, γδ T cells, extracellular ATP, purinergic signaling, P2X7 receptor, caspase-1, interleukin-1, IL-17, keratinocytes, DNA damage, skin regeneration, CD69, TRAF3IP2, DAPK1
MeSH terms
CD69 Antigens, Animals, Antigens, Differentiation, T-Lymphocyte, DNA Repair, Epidermis, Female, Gene Expression Regulation, Humans, Male, Regeneration, T-Lymphocytes, Tumor Necrosis Factor-alpha, Ultraviolet Rays, Keratinocytes, Antigens, CD, Receptors, Antigen, T-Cell, gamma-delta, Mice, Knockout, Interleukin-17, Lectins, C-Type, Mice

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