Single nucleotide polymorphisms in the D-loop region of mitochondrial DNA is associated with renal cell carcinoma outcome. (10th September 2013)

• Record Type: Journal Article
• Authors: Bai, Yaling; Guo, Zhanjun; Xu, Jinsheng; Liu, Shufeng; Zhang, Junxia; Cui, Liwen; Zhang, Huiran; Zhang, Shenglei
• Is Part Of: Mitochondrial DNA. Volume 26:Number 2(2015:Apr.)
• Page Start: 224
• Page End: 226
• Publication Date: 2013-09-10
• Subjects: D-loop -- mtDNA -- outcome -- renal cell carcinoma -- SNP; Mitochondrial DNA -- Periodicals; Mitochondrial DNA -- Abnormalities -- Periodicals; Nucleotide sequence -- Periodicals; Gene mapping -- Periodicals; 572.869
• DOI: 10.3109/19401736.2013.825772
• Languages: English
• ISSNs: 1940-1736

Abstract

Abstract: Accumulation of single nucleotide polymorphisms (SNPs) in the displacement loop (D-loop) of mitochondrial DNA (mtDNA) has been described in various types of cancers and might be associated with cancer risk and disease outcome. We identified 14 SNPs with a frequency higher than 5% and 5 SNPs associated with the risk of renal cell carcinoma (RCC) in a case–control study previously. In the present study, we assessed the relationship of these SNPs and the outcome of RCC patients, a SNP of 262C/T was identified by the log-rank test for statistically significant prediction of RCC survival. In an overall multivariate analysis, allele 262 was identified as an independent predictor of RCC outcome. The length of survival of patients with 262T was significantly shorter than that of patients with allele 262C (relative risk, 2.136, 95%CI, 1.863–2.449; p = 0.000). The analysis of genetic polymorphisms in the mitochondrial D-loop can help identify patients subgroup at high risk of a poor disease outcome.