Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 631

The DOI matches its Crossref record; 23 of the 23 references it cites were found in a registry or an index.

Azathioprine and UVA Light Generate Mutagenic Oxidative DNA Damage

Open access
O'Donovan, Peter, Perrett, Conal M., Zhang, Xiaohong, Montaner, Beatriz, Xu, Yao-Zhong, Harwood, Catherine A., McGregor, Jane M., Walker, Susan L., Hanaoka, Fumio, Karran, Peter·2005·Science

Abstract

Oxidative stress and mutagenic DNA lesions formed by reactive oxygen species (ROS) are linked to human malignancy. Clinical treatments inducing chronic oxidative stress may therefore carry a risk of therapy-related cancer. We suggest that immunosuppression by azathioprine (Aza) may be one such treatment. Aza causes the accumulation of 6-thioguanine (6-TG) in patients' DNA. Here we demonstrate that biologically relevant doses of ultraviolet A (UVA) generate ROS in cultured cells with 6-TG–substituted DNA and that 6-TG and UVA are synergistically mutagenic. A replication-blocking DNA 6-TG photoproduct, guanine sulfonate, was bypassed by error-prone, Y-family DNA polymerases in vitro. A preliminary analysis revealed that in five of five cases, Aza treatment was associated with a selective UVA photosensitivity. These findings may partly explain the prevalence of skin cancer in long-term survivors of organ transplantation.

Overview

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 · 10.1126/science.1114233

Cites

23 of 23 references verified0 citation errors · 0 not checkable

Statistics

Verification

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

Self-check

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

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

Citations

Cites

Show all 23 references

Cited by

See all 631

Metadata

Authors
O'Donovan, P., Perrett, C. M., Zhang, X., Montaner, B., Xu, Y.-Z., Harwood, C. A., McGregor, J. M., Walker, S. L., Hanaoka, F., & Karran, P.
Venue
Science
Published
2005-09-16
Volume
309
Issue
5742
Pages
1871-1874
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2119665774
Cited by
631
References
23
FWCI
8.32
Type
journal article
Language
en
Open access
green

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

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Azathioprine and UVA Light Generate Mutagenic Oxidative DNA Damage. https://app.cochat.ai/papers/10.1126/science.1114233
The paper
O'Donovan, P., Perrett, C. M., Zhang, X., Montaner, B., Xu, Y.-Z., Harwood, C. A., McGregor, J. M., Walker, S. L., Hanaoka, F., & Karran, P. (2005). Azathioprine and UVA Light Generate Mutagenic Oxidative DNA Damage. Science. https://doi.org/10.1126/science.1114233

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.