molecular diversity. Interactions with LecA and LecB, two proteins involved in the adhesion of Pseudomonas aeruginosa to host tissues, were evaluated by microcalorimetry (ITC). In both cases high affinities were obtained with Kd values in the nanomolar range. Further evaluation of their anti-adhesive properties using cultured epithelial cells demonstrated their potent anti-adhesive activities against
通过
叠氮化物-
炔烃的“咔嗒”偶联,可以很容易地从六-和四-炔丙基化的核中合成八个基于ylene二
酰亚胺的糖簇。
碳水化合物表位(Glc,Gal,Man,Fuc)和接头臂的变化提供了分子多样性。通过微量量热法(ITC)评估了与
铜绿假单胞菌与宿主组织粘附有关的两种蛋白质与LecA和LecB的相互作用。在这两种情况下,都获得了高亲和力,K d值在纳摩尔范围内。使用培养的上皮细胞对其抗粘连特性的进一步评估证明了它们对
铜绿假单胞菌的有效抗粘连活性仅观察到30-40%的残留粘附力。然后通过共聚焦显微镜对细胞-细菌培养物研究了PDI核心的荧光特性。但是,基于PDI的糖簇的红色荧光信号太弱,无法提供大量数据。本研究提供了另一种类型的抗黏附糖簇,可抵抗具有大的芳香族PDI核心的细菌感染。