J Cancer 2020; 11(4):804-809. doi:10.7150/jca.36651

Research Paper

The association of RAN and RANBP2 gene polymerphisms with Wilms tumor risk in Chinese children

Xiaokai Huang1*, Jie Zhao1*, Wen Fu2*, Jinhong Zhu3, Susu Lou1, Xiaoqian Tian1, Shanshan Chen1, Jichen Ruan1, Jing He1,2✉, Haixia Zhou1✉

1. Department of Hematology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, Zhejiang, China
2. Department of Pediatric Surgery, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong 510623, China
3. Department of Clinical Laboratory, Biobank, Harbin Medical University Cancer Hospital, Harbin 150040, Heilongjiang, China
*These authors contribute equally to this work.

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Huang X, Zhao J, Fu W, Zhu J, Lou S, Tian X, Chen S, Ruan J, He J, Zhou H. The association of RAN and RANBP2 gene polymerphisms with Wilms tumor risk in Chinese children. J Cancer 2020; 11(4):804-809. doi:10.7150/jca.36651. Available from http://www.jcancer.org/v11p0804.htm

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Wilms tumor is considered to be the most common renal malignancy among children. RAN, a member of RAS superfamily, and its binding partner RANBP2 are related to the progression of multiple tumors. Nevertheless, the effects of the RAN and RANBP2 gene polymorphisms on the tumorigenesis of Wilms tumor remain unclarified. In this study, three potentially functional polymorphisms (rs56109543 C>T, rs7132224 A>G, and rs14035 C>T) in the RAN and one (rs2462788 C>T) in the RANBP2 were chosen to investigate their association with Wilms tumor susceptibility. Odds ratios (ORs) and 95% confidence intervals (CIs) were applied to assess the association of the selected polymorphisms with Wilms tumor susceptibility. Results shown that RAN rs7132224 AG/GG genotypes significantly increased Wilms tumor risk when compared to AA genotype (adjusted OR=1.40, 95% CI=1.01-1.95, P=0.047). Carriers of 1-3 risk genotypes have a significantly higher Wilms tumor risk than those without risk genotype (adjusted OR=1.49, 95% CI=1.07-2.07, P=0.020). Moreover, stratified analysis indicated that RAN rs56109543 CT/TT genotypes, RAN rs7132224 AG/GG genotypes and RANBP2 rs2462788 CT/TT genotypes remarkably increased Wilms tumor susceptibility among the subgroups. Our results indicated that RAN and RANBP2 polymorphisms were associated with Wilms tumor susceptibility in Chinese children. The role of RAN/RANBP2 in cancers deserves more attention.

Keywords: RAN, RANBP2, polymorphism, Wilms tumor, susceptibility