Genetic variants in NAMPT predict bladder cancer risk and prognosis in individuals from southwest Chinese Han group

Tumour Biology : the Journal of the International Society for Oncodevelopmental Biology and Medicine
Kui ZhangLin Zhang

Abstract

Nicotinamide phosphoribosyltransferase (Nampt) was served as a useful biomarker for tumorigenesis and for the prediction of cancer survival. In the present study, we analyzed the SNPs of the NAMPT gene and their impact on the susceptibility and prognosis for patients with bladder cancer (BC). The rs61330082, rs2505568 and rs9034 were selected and genotyped by polymerase chain reaction (PCR)-restriction fragment length polymorphism (RFLP) method in 407 patients with bladder cancer and 316 ethnicity-matched healthy control subjects. The genotyping method was confirmed by the DNA sequencing analysis. Statistically significant increased bladder cancer risk was found to be associated with the C allele and CC genotype of rs61330082; nevertheless, decreased bladder cancer risk was revealed to be associated with A allele and AT genotype of rs2505568. Stratified analyses revealed the rs61330082 to be statistically associated with increased bladder cancer risk in smokers and increased invasiveness of bladder cancer. The AT heterozygote of rs2505568 may prevent the recurrence of bladder cancer. Kaplan-Meier curves revealed a statistically significant association of rs2505568 with recurrence-free survival for total bladder cancer patients ...Continue Reading

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