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Prognostic value of PDCD6 polymorphisms and the susceptibility to bladder cancer

  • Research Article
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Tumor Biology

Abstract

Programmed cell death 6 (PDCD6) has recently been found dysregulated in tumors of various origin. The aim of this study is to explore the association between PDCD6 genetic polymorphisms and susceptibility to bladder cancer and survival of patients with bladder cancer. Two tag SNPs of PDCD6, rs3756712 and rs4957014, were genotyped in 332 patients with bladder cancer and 509 controls by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method and correlated with patients’ survival. The frequencies of G allele and GG genotype of rs3756712 in patients were significantly lower than that of controls (P = 0.001, odds ratio [OR] = 0.68 for G allele; P = 0.024, OR = 0.53 for GG genotype in the recessive genetic model, respectively). The GT genotype of rs4957014 was associated with decreased susceptibility to bladder cancer in the overdominant genetic model (P = 0.023, OR = 0.72). Kaplan–Meier curves revealed a significant higher risk for death in superficial bladder cancer patients harboring GG homozygous of rs3756712 (P < 0.001), and an increased risk for recurrence in invasive bladder cancer patients carrying GT heterozygous of rs4957014 (P = 0.04). Multiple Cox regression analysis identified rs3756712 GG genotype as an independent prognostic factor for death in superficial bladder cancer patients (hazard ratio [HR] = 5.11, P = 0.01), and rs4957014 GT genotype as an independent prognostic factor for recurrence in invasive bladder cancer patients (HR = 1.93, P = 0.03). PDCD6 may represent a biomarker candidate gene that could help to identify a group of patients at high risk for recurrence and death.

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (No. 81172494, No. 81172440, No. 81272821 and No. 81202023); the Applied Basic Research Programs of Science and Technology Commission Foundation of Sichuan Province (No. 2012SZ0008); and the Science Foundation for The Excellent Youth Scholars of Sichuan University (No. 2011SCU04A16).

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Authors and Affiliations

  1. Laboratory of Molecular Translational Medicine, West China Institute of Women and Children’s Health, Key Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, China

    Bin Zhou, Yanyun Wang, Yaping Song & Lin Zhang

  2. Department of Urology, West China Hospital, Sichuan University, Chengdu, Sichuan, China

    Peng Zhang

  3. Department of Urology, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, China

    Tielong Tang

  4. Department of Forensic Biology, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, 610041, China

    Kui Zhang

  5. Department of Urology, Institute of Oncology, the Second People’s Hospital of Sichuan, Chengdu, China

    Hong Liao

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  1. Bin Zhou
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  2. Peng Zhang
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  3. Tielong Tang
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  4. Kui Zhang
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  6. Yaping Song
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  7. Hong Liao
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  8. Lin Zhang
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Correspondence to Lin Zhang.

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Bin Zhou and Peng Zhang contributed equally to this work.

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Zhou, B., Zhang, P., Tang, T. et al. Prognostic value of PDCD6 polymorphisms and the susceptibility to bladder cancer. Tumor Biol. 35, 7547–7554 (2014). https://doi.org/10.1007/s13277-014-2010-1

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  • DOI: https://doi.org/10.1007/s13277-014-2010-1

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