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胃及肠肝螺杆菌属的糖缀合物结合

Glycoconjugate binding of gastric and enterohepatic Helicobacter spp.

作者信息

Hynes Sean O, Teneberg Susann, Roche Niamh, Wadström Torkel

机构信息

Department of Medical Microbiology, Dermatology and Infection, Lund University, Lund, Sweden.

出版信息

Infect Immun. 2003 May;71(5):2976-80. doi: 10.1128/IAI.71.5.2976-2980.2003.

Abstract

Helicobacter pylori is able to utilize several lectin-like, protein-carbohydrate interactions for binding to mucins, cell surfaces, and extracellular matrix proteins. As determined by hemagglutination assays and binding of radiolabeled bacteria to glycosphingolipids on thin-layer chromatograms, strains of gastric helicobacters and enterohepatic helicobacters, including Helicobacter canis, Helicobacter hepaticus, and Helicobacter bilis, also demonstrated evidence for the presence of lectin-hemagglutinin adhesins. In addition, in H. hepaticus and H. bilis, binding may be sialic acid dependent. The presence or absence and differences in the levels of activity of lectin adhesins may reflect the species' ecological niche.

摘要

幽门螺杆菌能够利用多种类凝集素样的蛋白质-碳水化合物相互作用来结合黏蛋白、细胞表面和细胞外基质蛋白。通过血细胞凝集试验以及放射性标记细菌与薄层色谱上糖鞘脂的结合测定发现,包括犬幽门螺杆菌、肝螺杆菌和胆汁螺杆菌在内的胃螺杆菌和肝肠螺杆菌菌株也显示出存在凝集素-血凝素黏附素的证据。此外,在肝螺杆菌和胆汁螺杆菌中,结合可能依赖于唾液酸。凝集素黏附素活性水平的有无及差异可能反映了该物种的生态位。

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