Cited by 18melanin and skin pigmentationVeterinary Oncology ResearchCarcinogens and Genotoxicity Assessment

Recent advances in sunlight-induced carcinogenesis using the Xiphophorus melanoma model

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Fernandez, André A., Paniker, Lakshmi, Garcia, Rachel, Mitchell, David L.·2012·Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology

Abstract

Unlike breast and prostate cancers, the nature and sequence of critical genetic and epigenetic events involved in the initiation and progression of melanoma are not well understood. A contributing factor to this dilemma, especially given our current understanding of the importance of UV light in melanoma etiology, is the lack of quality UV-inducible melanoma animal models. In this study we elaborate on the capability of UV light to induce cutaneous malignant melanomas (CMM) in Xiphophorus fishes, which were previously found to develop melanomas after acute neonatal UVB irradiation. In two separate tumorigenesis experiments, we exposed adult Xiphophorus hybrids to either acute UVB irradiations (5 consecutive daily treatments) or chronic solar irradiations (continuous UVA/UVB treatment for 9 months). Acute adult UVB irradiation resulted in the significant induction of melanomas, and moreover, this induction rate is equivalent to that of animals exposed to acute neonatal UVB irradiation. This study represents the first evidence that acute adult UVB irradiation, in the absence of any early life exposures, induces CMM. Similar to the findings conducted on other divergent melanoma models, including HGF/SF transgenic mice and Monodelphis domestica, prolonged chronic solar UV was not a factor in melanomagenesis.

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  • Mutagenesis induced by UVA and its contribution to skin cancer development is still unclear, probably due to uncertainty regarding the relative importance of pyrimidine dimers and oxidized bases.

    “However, the mutagenesis induced by UVA and its contribution to skin cancer development is still unclear, probably due to the uncertainty regarding the relative importance of pyrimidine dimers and oxidized bases in this process [113,114].”

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Authors
Fernandez, A. A., Paniker, L., Garcia, R., & Mitchell, D. L.
Affiliations
The University of Texas MD Anderson Cancer Center (US)
Corresponding author
Fernandez, André A.
Venue
Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology
Publisher
Elsevier BV
Published
2012-01
Volume
155
Issue
1
Pages
64-70
ISSN
1532-0456 (ISSN-L)
OpenAlex
W2074465301
Cited by
18
References
61
Citations by year
2026: 1 · 2025: 3 · 2022: 2 · 2017: 2 · 2015: 1 · 2014: 3 · 2013: 3 · 2012: 2
FWCI
1.38
Type
journal article
Language
en
Open access
Locations
  • Comparative Biochemistry and Physiology Part C Toxicology & Pharmacology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Cancer Institute (CA113671, T32CA009480, R01CA113671, P30CA016672)
  • National Institute of Environmental Health Sciences (#ES07784, P30ES007784)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › melanin and skin pigmentation
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Veterinary Oncology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Carcinogens and Genotoxicity Assessment
Keywords
melanoma, UVB irradiation, Xiphophorus, cutaneous melanoma, UV-induced carcinogenesis, melanomagenesis, epigenetic events
MeSH terms
Animals, Breeding, Cyprinodontiformes, DNA Damage, Female, Male, Melanoma, Experimental, Neoplasms, Radiation-Induced, Skin Neoplasms, Sunlight, Time Factors, Ultraviolet Rays

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