Molecular mechanisms of UV-induced apoptosis
Open accessAbstract
Sunburn cells, single standing cells with typical morphologic features occurring in UV‐exposed skin, have been recognized as keratinocytes undergoing apoptosis following UV irradiation. Induction of apoptosis following UV exposure appears to be a protective mechanism, getting rid off severely damaged cells that bear the risk of malignant transformation. UV‐mediated apoptosis is a highly complex process in which different molecular pathways are involved. These include DNA damage, activation of the tumor suppressor gene p53, triggering of cell death receptors either directly by UV or by autocrine release of death ligands, mitochondrial damage and cytochrome C release. Detailed knowledge about the interplay between these pathways will increase our understanding of photocarcinogenesis. This review briefly discusses recent findings concerning the molecular mechanisms underlying UV‐induced apoptosis.
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UV rays first encounter the uppermost epidermal keratinocytes and cause apoptosis.
“UV rays first encounter the uppermost epidermal keratinocytes causing apoptosis.”
From Molecular Mechanisms of UV-Induced Apoptosis and Its Effects on Skin Residential Cells: The Implication in UV-Based Phototherapy (2013) · cites this paper as [22]
The Abstract identifies sunburn cells in UV-exposed skin as keratinocytes undergoing apoptosis after UV irradiation, and the Conclusion likewise discusses UV-induced keratinocyte apoptosis. Our copy does not say that UV rays first encounter the uppermost epidermal keratinocytes or locate the apoptotic cells specifically in that layer. Page numbers are unavailable in the indexed passages. (LLM, conf=0.83)
Experimental — accuracy not yet measuredA prototype of UV-induced apoptosis of keratinocytes is the formation of epidermal sunburn cells that are destined to apoptosis after sun exposure.
“A prototype of UV-induced apoptosis of keratinocytes is the formation of epidermal sunburn cells that are destined to apoptosis after sun exposure [22].”
From Molecular Mechanisms of UV-Induced Apoptosis and Its Effects on Skin Residential Cells: The Implication in UV-Based Phototherapy (2013) · cites this paper as [22]
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- Authors
- Kulms, D., & Schwarz, T.
- Affiliations
- University of Münster (DE)
- ORCID
- Venue
- Photodermatology, Photoimmunology & Photomedicine
- Publisher
- Wiley
- Published
- 2000-10
- Volume
- 16
- Issue
- 5
- Pages
- 195-201
- ISSN
- 0905-4383 (ISSN-L)
- 1600-0781
- OpenAlex
- W2066711970
- Cited by
- 319
- References
- 2
- Citations by year
- 2026: 1 · 2025: 11 · 2024: 8 · 2023: 11 · 2022: 9 · 2021: 4 · 2020: 6 · 2019: 11 · 2018: 11 · 2017: 15 · 2016: 19 · 2015: 19 · 2014: 12 · 2013: 12 · 2012: 17
- FWCI
- 1.11
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Photodermatology Photoimmunology & Photomedicine (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Bundesministerium für Bildung und Forschung (07UVB63A/5)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
- Health Sciences › Medicine › Dermatology › Skin Protection and Aging
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
- Keywords
- UV-induced apoptosis, sunburn cells, keratinocytes, DNA damage, p53, tumor suppressor, death ligands, mitochondrial damage, cytochrome c release, photocarcinogenesis, malignant transformation
- MeSH terms
- DNA Damage, Humans, Ultraviolet Rays, Keratinocytes, Apoptosis, Receptors, Tumor Necrosis Factor, Proto-Oncogene Proteins c-bcl-2
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