The structural basis of XRCC1-mediated DNA repair

London, Robert E.

doi:10.1016/j.dnarep.2015.02.005

Cited by 125 publications

(104 citation statements)

References 168 publications

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“…Previous researches have reported that X-ray repair cross-complementing group 1 (XRCC1) is involved in the BER pathway through repairing DNA single-strand breaks, while both X-ray repair cross-complementing group 2 (XRCC2) and X-ray repair crosscomplementing group 3 (XRCC3) participate in the HRR pathway by repairing DNA doublestrand breaks [16][17][18][19]. As suggested by earlier studies, polymorphisms of these genes are related to thyroid cancer risk [6,[20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 94%

Association Studies Between XRCC1, XRCC2, XRCC3 Polymorphisms and Differentiated Thyroid Carcinoma

Yan¹,

Li²,

Li³

et al. 2016

Cell Physiol Biochem

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Background/Aims: DNA HRR pathway and BER pathway play vital roles in differentiated thyroid cancer (DTC) development, thus we supposed that polymorphisms of XRCC1, XRCC2, XRCC3 DNA repair genes are associated with thyroid cancer risk and progression. Methods: We searched the NCBI database for relevant literatures to determine eight SNPs to be included in our study (XRCC1: rs25487, rs25489, rs1799782; XRCC2: rs3218536; XRCC3: rs1799794, rs56377012, rs1799796, rs861539). Results: SNP of rs25487 was linked with a 53% decrease in DTC risk (OR: 0.47; 95%CI: 0.268-0.82; P = 0.01). For SNP of rs1799782, the homozygous TT genotype indicated a statistically significant 2-fold increased risk of DTC (OR: 2.09; 95%CI: 1.27-3.43; P < 0.001) after multivariate adjustment. For SNP of rs861539, the homozygous TT genotype suggested statistically significant 3-fold increased risk of DTC (OR: 3.02; 95%CI: 1.68-5.42; P < 0.001). No significant association between the other five SNPs and DTC risk. Besides that, female was linked with 47% increase in DTC risk (OR: 1.47; 95%CI: 1.062-2.04; P = 0.02) after multivariate adjustment. Similar results for most of the SNPs were obtained from subgroup analysis by different histological types of DTC. Haplotype analysis revealed that AGC and GGT haplotypes of XRCC1 polymorphisms were associated with DTC. Moreover, results from gene-gene interaction showed that XRCC1-rs25487, XRCC1- rs1799782 and XRCC3- rs861539 variants jointly contributed to a specifically increased risk of DTC, with the combination variant of rs1799782-CT heterozygote and rs861539-TT homozygote exhibiting a higher 3.66-fold risk of DTC (OR: 3.66; 95% CI: 1.476-9.091, P = 0.005). Conclusion: Polymorphisms of XRCC1 (rs25487, rs1799782) and XRCC3 (rs861539), may play a critical role in DTC development and progression. Furthermore, XRCC1 variant can interact with XRCC3 variant to significantly increase DTC susceptibility. Identifying these genetic risk markers could provide evidence for exploring the insight pathogenesis and develop novel therapeutic strategies for DTC.

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Section: Introductionmentioning

confidence: 94%

Association Studies Between XRCC1, XRCC2, XRCC3 Polymorphisms and Differentiated Thyroid Carcinoma

Yan¹,

Li²,

Li³

et al. 2016

Cell Physiol Biochem

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“…The encoding protein of XRCC1 acts as a scafold protein in SSBR and BER pathways via the interaction with Pol β, DNA ligase III, and PARP [73]. According to data from SNP database, more than 50 GSNPs in the coding region of XRCC1 gene, which lead to amino acid substitution, have been identiied.…”

Section: The Xrcc1 Gsnps and Afb1-hcc Among Guangxiese Populationmentioning

confidence: 99%

Genetic Single Nucleotide Polymorphisms (GSNPs) in the DNA Repair Genes and Hepatocellular Carcinoma Related to Aflatoxin B1 among Guangxiese Population

Wu¹,

Xi²,

Lü³

et al. 2017

Genetic Polymorphisms

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Alatoxin B1 (AFB1) is an important environmental carcinogen for the development of hepatocellular carcinoma (HCC). HCC is a complex disease likely resulting from genetic single nucleotide polymorphisms (GSNPs) of multiple interacting genes and geneenvironment interactions. Recent eforts have been made to analyze the associations between risk of this malignancy and GSNPs in genes involved in the repair of DNA damage induced by AFB1. Here, we reviewed the results of published case-control studies that have examined the efects of common alleles of all susceptible DNA repair genes, including XRCC1, XRCC3, XRCC4, XRCC7, XPC, and XPD, on risk of AFB1-related HCC among Guangxi population. Statistically signiicant diferences in genotype frequencies found in case-control comparisons were rs25487, rs80309960, rs861539, rs7003908, rs28383151, rs3734091, rs13181, and rs2228001 polymorphism. The overall efects of these GNSPs were moderate in terms of relative risk, with ORs ranging from 2 to 10. Furthermore, some evidence of the interaction of GSNPs in DNA repair genes and AFB1 exposure modulate risk of this cancer was also found, although the results require conirmation with larger sample size studies.

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“…The scaffold protein XRCC1 is critically involved in BER and single-strand break repair [32, 33]. To demonstrate XRCC1 contribution to repair, we used XRCC1 wild type and null heterozygote primary mouse ear fibroblasts derived from littermate animals.…”

Section: Resultsmentioning

confidence: 99%

Application of the microfluidic-assisted replication track analysis to measure DNA repair in human and mouse cells

Welcsh

Kehrli

Lazarchuk

et al. 2016

Methods

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Functional studies of the roles that DNA helicases play in human cells have benefited immensely from DNA fiber or single molecule technologies, which enable us to discern minute differences in behaviors of individual replication forks in genomic DNA in vivo. DNA fiber technologies are a group of methods that use different approaches to unravel and stretch genomic DNA to its contour length, and display it on a glass surface in order to immuno-stain nucleoside analog incorporation into DNA to reveal tracks (or tracts) of replication. We have previously adopted a microfluidic approach to DNA stretching and used it to analyze DNA replication. This method was introduced under the moniker maRTA or microfluidic assisted Replication Track Analysis, and we have since used it to analyze roles of the RECQ helicases WRN and BLM, and other proteins in normal and perturbed replication. Here we describe a novel application of maRTA to detect and measure repair of DNA damage produced by three different agents relevant to etiology or therapy of cancer: methyl-methanesulfonate, UV irradiation, and mitomycin C. Moreover, we demonstrate the utility of this method by analyzing DNA repair in cells with reduced levels of WRN or of the base excision repair protein XRCC1.

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The structural basis of XRCC1-mediated DNA repair

Cited by 125 publications

References 168 publications

Association Studies Between XRCC1, XRCC2, XRCC3 Polymorphisms and Differentiated Thyroid Carcinoma

Association Studies Between XRCC1, XRCC2, XRCC3 Polymorphisms and Differentiated Thyroid Carcinoma

Genetic Single Nucleotide Polymorphisms (GSNPs) in the DNA Repair Genes and Hepatocellular Carcinoma Related to Aflatoxin B1 among Guangxiese Population

Application of the microfluidic-assisted replication track analysis to measure DNA repair in human and mouse cells

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