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  • ISSN 1674-8301
  • CN 32-1810/R
Volume 24 Issue 2
Feb.  2010
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Article Contents
Hua Huang, Juan Wu, Guangfu Jin, Hanze Zhang, Yanbing Ding, Zhaolai Hua, Yan Zhou, Yan Xue, Yan Lu, Zhibin Hu, Yaochu Xu, Hongbing Shen. A 5'-flanking region polymorphism in toll-like receptor 4 is associated with gastric cancer in a Chinese population[J]. The Journal of Biomedical Research, 2010, 24(2): 100-106.
Citation: Hua Huang, Juan Wu, Guangfu Jin, Hanze Zhang, Yanbing Ding, Zhaolai Hua, Yan Zhou, Yan Xue, Yan Lu, Zhibin Hu, Yaochu Xu, Hongbing Shen. A 5'-flanking region polymorphism in toll-like receptor 4 is associated with gastric cancer in a Chinese population[J]. The Journal of Biomedical Research, 2010, 24(2): 100-106.

A 5'-flanking region polymorphism in toll-like receptor 4 is associated with gastric cancer in a Chinese population

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This study was supported in part by National Natural Science Foundation of China (30700684 and 30671814), Jiangsu Natural Science Foundation (BK2008221) and the Key Project of Nanjing Medical University (09NJMUZ12)

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  • Received Date: January 04, 2010
  • Objective: Inflammation induced by H.pylori colonization in the stomach is related to the development of gastric cancer and the genetic variations of the genes involved in the immune responses modify the host response to the infection. The aim of this study was to evaluate whether polymorphisms in the toll-like receptor 4 (TLR4) gene, a key regulator of both innate and adaptive immunity, were related to the susceptibility to gastric cancer in a Chinese population. Methods: Two variations in the 5'-flanking region of TLR4 (rs1927914 T > C and rs10759932 T > C) were genotyped by using the PCR-restriction fragment length polymorphism (RFLP) assay in a case-control study of 1,053 incident gastric cancer cases and 1,100 cancer-free controls in a Chinese population. Results: Individuals carrying the C allele of rs10759932 had a significantly reduced risk of gastric cancer (adjusted OR = 0.81; 95%CI = 0.67-0.96), compared with the wild-type homozygote (TT), and the protective effect was not significantly different among subgroups stratified by age, sex, smoking, drinking and H.pylori infection status (P for heterogeneity > 0.05). No significant association was observed between rs1927914 and gastric cancer risk in this study population. Conclusion: The T to C allele substitution of rs10759932 may play a protective role in gastric carcinogenesis in a Chinese population. Large studies with different ethnic populations are warranted to confirm these findings.

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