Association of Toll-Like Receptors 2, 4, 9 and 10 Genes Polymorphisms and Helicobacter pylori-Related Gastric Diseases in Saudi Patients

慢性胃炎 幽门螺杆菌 单核苷酸多态性 胃炎 TLR2型 基因型 免疫学 卡加 无症状的 SNP公司 免疫系统 内科学 生物 医学 胃肠病学 基因 先天免疫系统 遗传学 毒力
作者
Emad M. Eed,Yousry Hawash,Amany Salah Khalifa,Khalaf F. Alsharif,Saleh A. Alghamdi,Abdulraheem Ali Almalki,Mazen Almehmadi,Khadiga Ahmed Ismail,Azza A. Taha,Taisir Saber
出处
期刊:Indian Journal of Medical Microbiology [Elsevier BV]
卷期号:38 (1): 94-100 被引量:19
标识
DOI:10.4103/ijmm.ijmm_20_164
摘要

Purpose: Helicobacter pylori is one of the most prevalent human pathogens worldwide. However, the outcomes of H. pylori infection are markedly variable from asymptomatic mild lesion to malignant transformation. Many factors are suggested to influence these infection outcomes, including host immunity and genetic susceptibility. Toll-like receptors (TLRs) can recognise different microbial components and play an essential role in the mucosal immune response against H. pylori infection. Materials and Methods: The association between the common single nucleotide polymorphisms (SNPs) in the genes of TLR2, 4, 9 and 10 and H. pylori-related gastric diseases were investigated by molecular methods after the confirmation of H. pylori infection. The study included 210 patients in three groups; chronic gastritis (n = 90), peptic ulcer disease (PUD) (n = 75) and gastric carcinoma (n = 45). Results: The results showed a significant association between TLR4 SNPs (rs4986790 and rs4986791) and the presence of H. pylori infection, especially in chronic gastritis patient group. Furthermore, TLR9-rs352140 TT genotype was more prevalent among chronic gastritis patient group. TLR10-rs10004195 TT genotype was found to be less prevalent among H. pylori-related chronic gastritis and PUD and was suspected to have a protective effect. TLR2 SNPs (rs3804099 and rs3804100) showed no significant statistical difference between H. pylori-infected patients and the controls. Conclusion: TLR genes polymorphisms may play a role in H. pylori infection susceptibility and may influence its outcomes; however, the ethnic and other factors may modify this effect.
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