Cited by 78Sphingolipid Metabolism and SignalingSkin Protection and AgingInflammatory mediators and NSAID effects

Understanding the connection between platelet-activating factor, a UV-induced lipid mediator of inflammation, immune suppression and skin cancer

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Damiani, Elisabetta, Ullrich, Stephen E.·2016·Progress in Lipid Research

Abstract

Lipid mediators of inflammation play important roles in several diseases including skin cancer, the most prevalent type of cancer found in the industrialized world. Ultraviolet (UV) radiation is a complete carcinogen and is the primary cause of skin cancer. UV radiation is also a potent immunosuppressive agent, and UV-induced immunosuppression is a well-known risk factor for skin cancer induction. An essential mediator in this process is the glyercophosphocholine 1-alkyl-2-acetyl-sn-glycero-3-phosphocholine commonly referred to as platelet-activating factor (PAF). PAF is produced by keratinocytes in response to diverse stimuli and exerts its biological effects by binding to a single specific G-protein-coupled receptor (PAF-R) expressed on a variety of cells. This review will attempt to describe how this lipid mediator is involved in transmitting the immunosuppressive signal from the skin to the immune system, starting from its production by keratinocytes, to its role in activating mast cell migration in vivo, and to the mechanisms involved that ultimately lead to immune suppression. Recent findings related to its role in regulating DNA repair and activating epigenetic mechanisms, further pinpoint the importance of this bioactive lipid, which may serve as a critical molecular mediator that links the environment (UVB radiation) to the immune system and the epigenome.

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Crossref · 10.1016/j.plipres.2016.03.004

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  • CPDs remaining in the genome function as one of the main causes of UV-induced immune suppression.

    “CPDs remaining in the genome also function as one of the main causes of UV-induced immune suppression25,26.”
  • Rapid repair of dipyrimidine photoproducts is expected to greatly minimize UV-induced immune suppression because the duration of unrepaired CPDs in genomic DNA is a primary signal for initiating this suppression.

    “This rapid repair of dipyrimidine photoproducts is also expected to greatly minimize UV-induced immune suppression since one of the primary signals for initiating this suppression is the duration of unrepaired CPDs in genomic DNAs25,37–39.”

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  1. [82]Streilein JW Skin-associated lymphoid tissue: the next generation Bos D Skin Immune System Boca Raton, Fl CRC Press 1989 25 48

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Authors
Damiani, E., & Ullrich, S. E.
Affiliations
  • Marche Polytechnic University (IT)
  • The University of Texas MD Anderson Cancer Center (US)
Venue
Progress in Lipid Research
Publisher
Elsevier BV
Published
2016-07
Volume
63
Pages
14-27
ISSN
0163-7827 (ISSN-L)
OpenAlex
W2314107066
Cited by
78
References
181
Citations by year
2026: 5 · 2025: 4 · 2024: 8 · 2023: 7 · 2022: 5 · 2021: 12 · 2020: 9 · 2019: 7 · 2018: 9 · 2017: 10 · 2016: 2
FWCI
0.84
Type
journal article
Language
en
Open access
Locations
  • Progress in Lipid Research (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Università Politecnica delle Marche (Università Politecnica delle Marche) (submittedVersion, public-domain)
Funders
National Cancer Institute (R01CA131207)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Sphingolipid Metabolism and Signaling
  • Health Sciences › Medicine › Dermatology › Skin Protection and Aging
  • Health Sciences › Medicine › Pharmacology › Inflammatory mediators and NSAID effects
Keywords
platelet-activating factor, ultraviolet radiation, UV-B radiation, skin cancer, UV-induced immunosuppression, keratinocytes, PAF receptor, mast cell migration, DNA repair, epigenetic regulation, glycerophosphocholine
MeSH terms
Animals, Blood Platelets, DNA Repair, Humans, Immunosuppression Therapy, Inflammation, Mast Cells, Platelet Activating Factor, Skin, Skin Neoplasms, Ultraviolet Rays, Receptors, G-Protein-Coupled

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