Cited by 155DNA Repair MechanismsCarcinogens and Genotoxicity AssessmentSkin Protection and Aging

Wavelength dependence of ultraviolet radiation‐induced DNA damage as determined by laser irradiation suggests that cyclobutane pyrimidine dimers are the principal DNA lesions produced by terrestrial sunlight

Open access
Besaratinia, Ahmad, Yoon, Jae‐in, Schroeder, Christi, Bradforth, Stephen E., Cockburn, Myles, Pfeifer, Gerd P.·2011·The FASEB Journal

Abstract

To elucidate the involvement of specific ultraviolet (UV) wavelengths in solar mutagenesis, we used a laser system to investigate the induction of DNA damage, both in the overall genome and at the nucleotide resolution level, in the genomic DNA of transgenic Big Blue mouse fibroblasts irradiated with a series of UV wavelengths, inclusive of UVC (λ<280 nm), UVB (λ=280–320 nm), and UVA (λ>320 nm). Subsequently, we sought correlation between the locations of UV‐induced DNA lesions in the cII transgene of irradiated DNA samples and the frequency distribution and codon position of the induced cII mutations in counterpart mouse cells irradiated with simulated sunlight. Using a combination of enzymatic digestion assays coupled with gel electrophoresis, immunodot blot assays, and DNA footprinting assays, we demonstrated a unique wavelength‐dependent formation of photodimeric lesions, i.e. , cyclobutane pyrimidine dimers (CPDs) and (6–4) photoproducts [(6–4)PPs], based on direct UV absorption of DNA, in irradiated mouse genomic DNA, which could partially explain the induction of mutations in mouse cells irradiated with simulated sunlight. Most notably, there was a divergence of CPD and (6–4)PP formation at an irradiation wavelength of 296 nm in mouse genomic DNA. Whereas substantial formation of (6–4)PPs was detectable in samples irradiated at this wavelength, which intensified as the irradiation wavelength decreased, only small quantities of these lesions were found in samples irradiated at wavelengths of 300–305 nm, with no detectable level of (6–4)PPs in samples irradiated with longer wavelengths. Although CPD formation followed the same pattern of increase with decreasing wavelengths of irradiation, there were substantial levels of CPDs in samples irradiated with UVB wavelengths borderlined with UVA, and small but detectable levels of these lesions in samples irradiated with longer wavelengths. Because the terrestrial sunlight spectrum rolls off sharply at wavelengths ~300 nm, our findings suggest that CPDs are the principal lesion responsible for most DNA damage‐dependent biological effects of sunlight.—Besaratinia, A., Yoon, J.‐I., Schroeder, C., Bradforth, S. E., Cockburn, M., Pfeifer, G. P. Wavelength dependence of ultraviolet radiation‐induced DNA damage as determined by laser irradiation suggests that cyclobutane pyrimidine dimers are the principal DNA lesions produced by terrestrial sunlight. FASEB J. 25, 3079–3091 (2011). www.fasebj.org

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1096/fj.11-187336

Cites

75 of 75 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • UVA radiation has been shown since the 1970s to induce CPDs in bacteria, mammalian cells and human skin.

    “In fact, UVA radiation has been shown since the 1970s, first in bacteria (29) and then in mammalian cells (32,55,(80)(81)(82)(83)(84) and human skin (61,65,(85)(86)(87), to be also able to induce CPDs.”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

1 of the 76 references couldn’t be matched to a known paper.

Research works printed but not linked: 1

  1. [34]34. Elles C. G., Jailaubekov A. E., Crowell R. A., Bradforth S. E. (2006) Excitation-energy dependence of the mechanism for two-photon ionization of liquid H(2)O and D(2)O from 8.3 to 12.4 eV. J. Chem. Phys. 125, 44515. [DOI] [PubMed] [Google Scholar]

Cited by

Sorted by citations

Authors
Besaratinia, A., Yoon, J., Schroeder, C., Bradforth, S. E., Cockburn, M., & Pfeifer, G. P.
Affiliations
  • Department of Cancer Biology Beckman Research Institute of the City of Hope Duarte California USA
  • Beckman Research Institute (US)
  • University of Southern California (US)
Venue
The FASEB Journal
Publisher
Wiley
Published
2011-05-25
Volume
25
Issue
9
Pages
3079-3091
ISSN
  • 0892-6638 (ISSN-L)
  • 1530-6860
OpenAlex
W2153448038
Cited by
155
References
76
Citations by year
2026: 5 · 2025: 7 · 2024: 12 · 2023: 11 · 2022: 11 · 2021: 15 · 2020: 14 · 2019: 15 · 2018: 8 · 2017: 9 · 2016: 10 · 2015: 8 · 2014: 11 · 2013: 10 · 2012: 4
FWCI
3.89
Type
journal article
Language
en
Open access
Locations
  • The FASEB Journal (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Annenberg Foundation (RSG‐11‐083‐01‐CNE)
  • National Institute of Environmental Health Sciences (ES06070)
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
ultraviolet radiation, DNA damage, cyclobutane pyrimidine dimers, 6-4 photoproducts, wavelength dependence, UV-B radiation, UVA, UV-C, simulated sunlight, DNA footprinting
MeSH terms
Animals, DNA, DNA Damage, Fibroblasts, Gene Expression Regulation, Lasers, Mice, Transgenic, Mutation, Pyrimidine Dimers, Sunlight, Ultraviolet Rays, Molecular Structure, Genome, Mice, Photoelectron Spectroscopy

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review