Abstract

DNA repair phenotype can be measured in blood and may be a potential biomarker of cancer risk. We conducted a systematic review and meta-analysis of epidemiological studies of DNA repair phenotype and cancer through March 2021. We used random-effects models to calculate pooled odds ratios (ORs) of cancer risk for those with the lowest DNA repair capacity compared with those with the highest capacity. We included 55 case–control studies that evaluated 12 different cancers using 10 different DNA repair assays. The pooled OR of cancer risk (all cancer types combined) was 2.92 (95% Confidence Interval (CI) 2.49, 3.43) for the lowest DNA repair. Lower DNA repair was associated with all studied cancer types, and pooled ORs (95% CI) ranged from 2.02 (1.43, 2.85) for skin cancer to 7.60 (3.26, 17.72) for liver cancer. All assays, except the homologous recombination repair assay, showed statistically significant associations with cancer. The effect size ranged from 1.90 (1.00, 3.60) for the etoposide-induced double-strand break assay to 5.06 (3.67, 6.99) for the γ-H2AX assay. The consistency and strength of the associations support the use of these phenotypic biomarkers; however large-scale prospective studies will be important for understanding their use related to age and screening initiation.

Details

Title
DNA repair phenotype and cancer risk: a systematic review and meta-analysis of 55 case–control studies
Author
Hui-Chen, Wu 1 ; Kehm, Rebecca 2 ; Santella, Regina M 1 ; Brenner, David J 3 ; Terry, Mary Beth 4 

 Mailman School of Public Health of Columbia University, Department of Environmental Health Sciences, New York, USA (GRID:grid.21729.3f) (ISNI:0000000419368729); Columbia University Medical Center, Herbert Irving Comprehensive Cancer Center, New York, USA (GRID:grid.239585.0) (ISNI:0000 0001 2285 2675) 
 Mailman School of Public Health of Columbia University, Department of Epidemiology, New York, USA (GRID:grid.21729.3f) (ISNI:0000000419368729) 
 Columbia University Irving Medical Center, Center for Radiological Research, New York, USA (GRID:grid.21729.3f) (ISNI:0000000419368729) 
 Mailman School of Public Health of Columbia University, Department of Environmental Health Sciences, New York, USA (GRID:grid.21729.3f) (ISNI:0000000419368729); Mailman School of Public Health of Columbia University, Department of Epidemiology, New York, USA (GRID:grid.21729.3f) (ISNI:0000000419368729) 
Publication year
2022
Publication date
2022
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2634669170
Copyright
© The Author(s) 2022. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.