Association between SNPs in microRNA machinery genes and gastric cancer susceptibility, invasion, and metastasis in Chinese Han population

Xingbo Song; Huiyu Zhong; Qian Wu; Minjin Wang; Juan Zhou; Yi Zhou; Xiaojun Lu; Binwu Ying

doi:10.18632/oncotarget.21199

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Research Papers:

Association between SNPs in microRNA machinery genes and gastric cancer susceptibility, invasion, and metastasis in Chinese Han population

Xingbo Song, Huiyu Zhong, Qian Wu, Minjin Wang, Juan Zhou, Yi Zhou, Xiaojun Lu and Binwu Ying _

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Oncotarget. 2017; 8:86435-86446. https://doi.org/10.18632/oncotarget.21199

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Abstract

Xingbo Song1,*, Huiyu Zhong1,*, Qian Wu1,*, Minjin Wang1, Juan Zhou1, Yi Zhou1, Xiaojun Lu1 and Binwu Ying1

1Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China

*These authors have contributed equally to this work

Correspondence to:

Binwu Ying, email: [email protected]

Keywords: microRNA, single nucleotide polymorphism, gastric cancer, tumor invasion and metastasis

Received: June 16, 2017 Accepted: July 30, 2017 Published: September 23, 2017

ABSTRACT

Objective: The present study investigates the influence of genetic variants in miRNA machinery genes (DROSHA, DICER, AGO1, and GEMIN4) on gastric cancer in Chinese Han population, further revealing the genetic mechanisms of gastric cancer occurrence and development.

Methods: Genotyping of single nucleotide polymorphisms (SNPs) was performed in 628 patients with GC and 502 frequency-matched (age and gender) controls by the high resolution melting (HRM) method.

Results: The SNPs rs3742330 (DICER) and rs7813 (GEMIN4) were associated with susceptibility to gastric cancer (P = 0.002 and 0.010, respectively). Stratified analysis showed that the G allele of rs3742330 and genotype TT as well as T allele of rs7813 were associated with a later stage of gastric cancer (P=0.027, 0.032 and 0.018, respectively). Furthermore, the genotype TT and T allele of rs7813 appeared to be associated with a higher level of lymphatic metastasis of gastric cancer (P=0.021 and 0.030, respectively), while the genotype AA and A allele of rs636832 (AGO1) were correlated with a lower level of lymphatic metastasis of gastric cancer (P=0.016 and 0.041, respectively). There was no significant association between rs10719 (DROSHA) and gastric cancer.

Conclusion: The present data demonstrated that genetic variants in miRNA machinery genes had a significant association with GC susceptibility (DICER and GEMIN4) and malignant behavior such as tumor stage (DICER and GEMIN4) and lymphatic metastasis of GC (GEMIN4 and AGO1) in Chinese Han population.

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Research Papers:

Association between SNPs in microRNA machinery genes and gastric cancer susceptibility, invasion, and metastasis in Chinese Han population

Abstract