The DOI matches its Crossref record; 33 of the 33 references it cites were found in a registry or an index.
The basal layer in human squamous tumors harbors more UVA than UVB fingerprint mutations: A role for UVA in human skin carcinogenesis
Open accessAbstract
We hypothesized that a substantial portion of the mutagenic alterations produced in the basal layer of human skin by sunlight are induced by wavelengths in the UVA range. Using laser capture microdissection we examined separately basal and suprabasal keratinocytes from human skin squamous cell carcinomas and premalignant solar keratosis for both UVA- and UVB-induced adduct formation and signature mutations. We found that UVA fingerprint mutations were detectable in human skin squamous cell carcinomas and solar keratosis, mostly in the basal germinative layer, which contrasted with a predominantly suprabasal localization of UVB fingerprint mutations in these lesions. The epidermal layer bias was confirmed by immunohistochemical analyses with a superficial localization of cyclobutane thymine dimers contrasting with the localization of 8-hydroxy-2′-deoxyguanine adducts to the basal epithelial layers. If unrepaired, these adducts may lead to fixed genomic mutations. The basal location of UVA-rather than UVB-induced DNA damage suggests that longer-wavelength UVR is an important carcinogen in the stem cell compartment of the skin. Given the traditional emphasis on UVB, these results may have profound implications for future public health initiatives for skin cancer prevention.
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Cites
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Cited by
D'Orazio, J., Jarrett, S., Amaro-Ortiz, A., & Scott, T. (2013) · International Journal of Molecular Sciences · doi:10.3390/ijms140612222 · Cited by 1,984
A review of human carcinogens--part D: radiation
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The Mechanisms of UV Mutagenesis
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UV wavelength-dependent DNA damage and human non-melanoma and melanoma skin cancer
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Metadata
- Authors
- Agar, N. S., Halliday, G. M., Barnetson, R. S., Ananthaswamy, H. N., Wheeler, M., & Jones, A. M.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2004-03-23
- Volume
- 101
- Issue
- 14
- Pages
- 4954-4959
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2032128602
- Cited by
- 531
- References
- 33
- FWCI
- 46.99
- Type
- journal article
- Language
- en
- Open access
- green
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- CoChat. (2026). Citation check: The basal layer in human squamous tumors harbors more UVA than UVB fingerprint mutations: A role for UVA in human skin carcinogenesis. https://app.cochat.ai/papers/10.1073/pnas.0401141101
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- Agar, N. S., Halliday, G. M., Barnetson, R. S., Ananthaswamy, H. N., Wheeler, M., & Jones, A. M. (2004). The basal layer in human squamous tumors harbors more UVA than UVB fingerprint mutations: A role for UVA in human skin carcinogenesis. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0401141101
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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