Cited by 133DNA Repair MechanismsCarcinogens and Genotoxicity AssessmentSkin Protection and Aging

Oxidation of Guanine in Cellular DNA by Solar UV Radiation: Biological Role†

Douki, Thierry, Perdiz, Daniel, Grof, Pal, Kuluncsics, Zéno, Moustacchi, Ethel, Cadet, Jean, Sage, Evelyne·1999·Photochemistry and Photobiology

Abstract

Abstract. The formation of cyclobutane pyrimidine dimers (CPD) and 8‐oxo‐7,8‐dihydro‐2′‐deoxyguanosine (8‐oxodGuo) was investigated in Chinese hamster ovary cells upon exposure to either UVC, UVB, UVA or simulated sunlight (SSL). Two cell lines were used, namely AT3‐2 and UVL9, the latter being deficient in nucleotide excision repair and consequently UV sensitive. For all types of radiation, including UVA, CPD were found to be the predominant lesions quantitatively. At the biologically relevant doses used, UVC, UVB and SSL irradiation yielded 8‐oxodGuo at a rather low level, whereas UVA radiation produced relatively higher amounts. The formation of CPD was 10 2 and 10 2 more effective upon UVC than UVB and UVA exposure. These yields of formation followed DNA absorption, even in the UVA range. The calculated relative spectral effectiveness in the production of the two lesions showed that efficient induction of 8‐oxodGuo upon UVA irradiation was shifted toward longer wavelengths, in comparison with those for CPD formation, in agreement with a photosensitization mechanism. In addition, after exposure to SSL, about 19% and 20% of 8‐oxodGuo were produced between 290–320 nm and 320–340 nm, respectively, whereas CPD were essentially (90%) induced in the UVB region. However, the ratio of CPD to 8‐oxodGuo greatly differed from one source of light to the other: it was over 100 for UVB but only a few units for UVA source. The extent of 8‐oxodGuo and CPD was also compared to the lethality for the different types of radiation. The involvement of 8‐oxodGuo in cell killing by solar UV radiation was clearly ruled out. In addition, our previously reported mutation

Integrity signals

Registry

Crossref · 10.1111/j.1751-1097.1999.tb07988.x

Cites

57 of 57 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

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?

  • 8-oxoGua is generated in significant yields upon UVA exposure of cultured cells and skin.

    “A much more common biomarker of oxidatively generated damage to DNA is 8-oxoGua that has been found to be generated in significant yields upon exposure of cultured cells (85,112,113) and skin (61) to UVA radiation.”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Douki, T., Perdiz, D., Grof, P., Kuluncsics, Z., Moustacchi, E., Cadet, J., & Sage, E.
Affiliations
  • Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
  • Centre National de la Recherche Scientifique (FR)
  • Semmelweis University (HU)
Venue
Photochemistry and Photobiology
Publisher
Wiley
Published
1999-08
Volume
70
Issue
2
Pages
184-190
ISSN
  • 0031-8655 (ISSN-L)
  • 1751-1097
OpenAlex
W2146700501
Cited by
133
References
57
Citations by year
2025: 4 · 2024: 2 · 2023: 4 · 2022: 4 · 2021: 3 · 2020: 5 · 2019: 1 · 2018: 4 · 2017: 6 · 2016: 4 · 2015: 4 · 2014: 4 · 2013: 6 · 2012: 4
FWCI
2.18
Type
journal article
Language
en
Open access
closed
Locations
  • Photochemistry and Photobiology (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
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
guanine oxidation, 8-oxo-7,8-dihydro-2'-deoxyguanosine, cyclobutane pyrimidine dimers, solar ultraviolet radiation, UVA, UV-B radiation, UV-C, simulated sunlight, nucleotide excision repair deficiency, photosensitization, DNA damage, cell lethality, UV mutagenesis, CHO cells
MeSH terms
Animals, DNA, DNA Damage, Guanine, Cricetinae, Mutation, Oxidation-Reduction, Pyrimidine Dimers, Sunlight, CHO Cells, Photobiology

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