Cited by 39DNA Repair MechanismsCarcinogens and Genotoxicity AssessmentSkin Protection and Aging

Transcription-Dependent Cytosine Deamination Is a Novel Mechanism in Ultraviolet Light-Induced Mutagenesis

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Hendriks, Giel, Calléja, Fabienne, Besaratinia, Ahmad, Vrieling, Harry, Pfeifer, Gerd P., Mullenders, Leon H.F., Jansen, Jacob G., de Wind, Niels·2010·Current Biology

Abstract

Skin cancer is the most ubiquitous cancer type in the Caucasian population, and its incidence is increasing rapidly [1]. Transcribed proliferation-related genes in dermal stem cells are targets for the induction of ultraviolet light (UV)-induced mutations that drive carcinogenesis. We have recently found that transcription of a gene increases its mutability by UV in mammalian stem cells, suggesting a role of transcription in skin carcinogenesis [2]. Here we show that transcription-associated UV-induced nucleotide substitutions are caused by increased deamination of cytosines to uracil within photolesions at the transcribed strand, presumably at sites of stalled transcription complexes. Additionally, via an independent mechanism, transcription of UV-damaged DNA induces the generation of intragenic deletions. We demonstrate that transcription-coupled nucleotide excision repair (TC-NER) provides protection against both classes of transcription-associated mutagenesis. Combined, these results unveil the existence of two mutagenic pathways operating specifically at the transcribed DNA strand of active genes. Moreover, these results uncover a novel role for TC-NER in the suppression of UV-induced genome aberrations and provide a rationale for the efficient induction of apoptosis by stalled transcription complexes.

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Crossref · 10.1016/j.cub.2009.11.061

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Authors
Hendriks, G., Calléja, F., Besaratinia, A., Vrieling, H., Pfeifer, G. P., Mullenders, L. H. F., Jansen, J. G., & de Wind, N.
Affiliations
  • Leiden University Medical Center (NL)
  • City Of Hope National Medical Center (US)
Venue
Current Biology
Publisher
Elsevier BV
Published
2010-01
Volume
20
Issue
2
Pages
170-175
ISSN
0960-9822 (ISSN-L)
OpenAlex
W2074858286
Cited by
39
References
23
Citations by year
2026: 1 · 2023: 1 · 2021: 4 · 2020: 1 · 2019: 1 · 2018: 2 · 2017: 2 · 2016: 3 · 2015: 3 · 2014: 3 · 2013: 2 · 2012: 8
FWCI
2.35
Type
journal article
Language
en
Open access
Locations
  • Current Biology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Leiden Repository (Leiden University) (submittedVersion)
Funders
  • KWF Kankerbestrijding
  • Leids Universitair Medisch Centrum
  • National Institutes of Health
  • National Institute of Environmental Health Sciences (R37ES006070, R01ES006070, ES-06070)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Carcinogens and Genotoxicity Assessment
  • Health Sciences › Medicine › Dermatology › Skin Protection and Aging
Keywords
cytosine deamination, transcription-coupled repair, skin carcinogenesis, intragenic deletion, nucleotide substitution, dermal stem cells, apoptosis
MeSH terms
Cytosine, Deamination, Hypoxanthine Phosphoribosyltransferase, Transcription, Genetic, Ultraviolet Rays, Mutagenesis

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