RAD52 variants predict platinum resistance and prognosis of cervical cancer.

dc.contributor.author

Shi, Ting-Yan

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Yang, Gong

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Tu, Xiao-Yu

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Yang, Jing-Min

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Qian, Ji

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Wu, Xiao-Hua

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Zhou, Xiao-Yan

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Cheng, Xi

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Wei, Qingyi

dc.date.accessioned

2019-02-01T15:13:27Z

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2019-02-01T15:13:27Z

dc.date.issued

2012-01

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2019-02-01T15:13:25Z

dc.description.abstract

RAD52 is an important but not well characterized homologous recombination repair gene that can bind to single-stranded DNA ends and mediate the DNA-DNA interaction necessary for the annealing of complementary DNA strands. To evaluate the role of RAD52 variants in the response of tumor cells to platinum agents, we investigated their associations with platinum resistance and prognosis in cervical cancer patients. We enrolled 154 patients with cervical squamous cell carcinoma, who had radical surgery between 2008 and 2009, and genotyped three potentially functional RAD52 variants by the SNaPshot assay. We tested in vitro platinum resistance and RAD52 expression by using the MTT and immunohistochemistry methods, respectively. In 144 cases who had genotyping data, we found that both the rs1051669 variant and RAD52 protein expression were significantly associated with carboplatin resistance (P = 0.024 and 0.028, respectively) and rs10774474 with nedaplatin resistance (P = 0.018). The rs1051669 variant was significantly associated with RAD52 protein expression (adjusted OR = 4.7, 95% CI = 1.4-16.1, P = 0.013). When these three RAD52 variants were combined, progression-free survival was lower in patients who carried at least one (≥1) variant allele compared to those without any of the variant alleles (P = 0.047). Therefore, both RAD52 variants and protein expression can predict platinum resistance, and RAD52 variants appeared to predict prognosis in cervical cancer patients. Large studies are warranted to validate these findings.

dc.identifier

PONE-D-12-21163

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1932-6203

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1932-6203

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https://hdl.handle.net/10161/17990

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eng

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Public Library of Science (PLoS)

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PloS one

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10.1371/journal.pone.0050461

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Humans

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Organoplatinum Compounds

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Carboplatin

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Immunohistochemistry

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Models, Statistical

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Drug Resistance, Neoplasm

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Genotype

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Polymorphism, Single Nucleotide

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Adult

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Aged

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Middle Aged

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Uterine Cervical Neoplasms

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Female

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Rad52 DNA Repair and Recombination Protein

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Young Adult

dc.title

RAD52 variants predict platinum resistance and prognosis of cervical cancer.

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Journal article

duke.contributor.orcid

Wei, Qingyi|0000-0002-3845-9445|0000-0003-4115-4439

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e50461

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11

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School of Medicine

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Duke

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Duke Cancer Institute

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Institutes and Centers

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Population Health Sciences

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Basic Science Departments

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Medicine, Medical Oncology

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Medicine

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Clinical Science Departments

pubs.publication-status

Published

pubs.volume

7

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