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Contribution of interaction between genetic variants of interleukin-11 and Helicobacter pylori infection to the susceptibility of gastric cancer.


ABSTRACT: Background:Gastric cancer (GC) ranks the second leading cause of cancer-related mortality worldwide. We aimed to clarify the relevance of genetic variants of IL-11, a hub of various carcinogenic pathways, as well as their interactions with Helicobacter pylori (H. pylori) infection in the development of GC. Methods:A case-control study with 880 GC cases and 900 healthy controls was conducted in a Chinese population. Six tagSNPs were detected by Taqman Allelic Discrimination assay, while H. pylori status was detected by Typing Detection Kit for Antibody to H. pylori and serum IL-11 level was measured using ELISA method. Results:We found that rs1126760 (C vs T: OR=1.39, 95% CIs=1.13-1.70, P=0.002) and rs1126757 (C vs T: OR=0.82, 95% CIs=0.72-0.93, P=0.002) were significantly associated with susceptibility of GC. Even adjusted for Bonferroni correction, the results were still significant (P=0.002×6=0.012). IL-11 rs1126760 was significantly associated with higher serum and expression level of IL-11, while rs1126757 was significantly associated with lower serum IL-11 level (P<0.001). Significant interaction with H. pylori infection was identified for rs1126760 (P for interaction =0.005). Higher expression of the IL-11 gene was significant with development and poor prognosis of GC. Conclusion:Our study provides strong evidence that genetic variants of the IL-11 gene may interact with H. pylori infection and contribute to the development of GC. Further studies with larger sample size and functional experiments are needed to validate our findings.

SUBMITTER: Liao C 

PROVIDER: S-EPMC6751226 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Contribution of interaction between genetic variants of interleukin-11 and <i>Helicobacter pylori</i> infection to the susceptibility of gastric cancer.

Liao Chuanwen C   Hu Shuqin S   Zheng Zihan Z   Tong Huazhang H  

OncoTargets and therapy 20190911


<h4>Background</h4>Gastric cancer (GC) ranks the second leading cause of cancer-related mortality worldwide. We aimed to clarify the relevance of genetic variants of <i>IL-11</i>, a hub of various carcinogenic pathways, as well as their interactions with <i>Helicobacter pylori</i> (<i>H. pylori</i>) infection in the development of GC.<h4>Methods</h4>A case-control study with 880 GC cases and 900 healthy controls was conducted in a Chinese population. Six tagSNPs were detected by Taqman Allelic D  ...[more]

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