Cited by 156Skin Protection and AgingProtein Kinase Regulation and GTPase SignalingMelanoma and MAPK Pathways

The DOI matches its Crossref record; 58 of the 61 references it cites were found in a registry or an index.

Role of p38 MAPK in UVB-Induced Inflammatory Responses in the Skin of SKH-1 Hairless Mice

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Abstract

The p38 mitogen-activated protein kinase (MAPK) signaling pathway is activated by numerous inflammatory mediators and environmental stresses. We assessed the effects of ultraviolet B (UVB) on the p38 MAPK pathway and determined whether cyclooxygenase (COX)-2 expression is downstream of this kinase in the skin of UVB-irradiated SKH-1 mice. SKH-1 mice were irradiated with a single dose of UVB (360 mJ per cm2), and activation of the epidermal p38 MAPK pathway was assessed. UVB-induced phosphorylation of p38 MAPK occurred in a time-dependent manner. Phosphorylation of MAPK-activated protein kinase-2 (MAPKAPK-2) also was detected and correlated with an increase in its kinase activity. Phosphorylation of heat shock protein 27 (HSP27), a substrate for MAPKAPK-2, also was detected post-irradiation. Oral administration of the p38 inhibitor, SB242235, prior to UVB irradiation, blocked activation of the p38 MAPK cascade, and abolished MAPKAPK-2 kinase activity and phosphorylation of HSP27. Moreover, SB242235 inhibited expression of the pro-inflammatory cytokines interleukin (IL)-6 and KC (murine IL-8) and COX-2. Our data demonstrate that UVB irradiation of murine skin activates epidermal p38 MAPK signaling and induces a local pro-inflammatory response. Blockade of the p38 MAPK pathway may offer an effective approach to reducing or preventing skin damage resulting from acute solar radiation.

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Crossref · 10.1111/j.0022-202x.2005.23747.x

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Metadata

Authors
Kim, A. L., Labasi, J. M., Zhu, Y., Tang, X., McClure, K., Gabel, C. A., Athar, M., & Bickers, D. R.
Affiliations
  • Columbia University Irving Medical Center (US)
  • Pfizer (United States) (US)
  • Columbia University (US)
Corresponding author
Kim, Arianna L.
Venue
Journal of Investigative Dermatology
Publisher
Elsevier BV
Published
2005-06
Volume
124
Issue
6
Pages
1318-1325
ISSN
0022-202X (ISSN-L)
OpenAlex
W1964414267
Cited by
153
References
61
Citations by year
2026: 4 · 2025: 2 · 2024: 12 · 2023: 6 · 2022: 17 · 2021: 10 · 2020: 4 · 2019: 10 · 2018: 8 · 2017: 7 · 2016: 6 · 2015: 6 · 2014: 7 · 2013: 9 · 2012: 8
FWCI
8.89
Type
journal article
Language
en
Open access
Locations
  • Journal of Investigative Dermatology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Pfizer
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (K01AR048582)
Topics
  • Health Sciences › Medicine › Dermatology › Skin Protection and Aging
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Melanoma and MAPK Pathways
Keywords
p38 MAPK, UV-B radiation, skin inflammation, SKH-1 mice, cyclooxygenase-2, MAPKAPK2, HSP27, interleukin-6, photoprotection
MeSH terms
MAP-Kinase-Activated Kinase 2, Animals, Enzyme Inhibitors, Female, Heat-Shock Proteins, Imidazoles, Mice, Hairless, Phosphorylation, Photosensitivity Disorders, Prostaglandin-Endoperoxide Synthases, Pyridines, Skin, Threonine, Ultraviolet Rays, Signal Transduction, Cytokines, Protein Serine-Threonine Kinases, Inflammation Mediators, Intracellular Signaling Peptides and Proteins, p38 Mitogen-Activated Protein Kinases, Mice, Cyclooxygenase 2, HSP27 Heat-Shock Proteins

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