The tether employed to covalently attach β-mannan disaccharide glycoconjugates influences the specificity of rabbit antibodies that protect against Candida albicans. Two glycoconjugates containing (1 → 2)-β-mannan disaccharides linked to chicken serum albumin (CSA) either via a structurally uniform or via a stereodiversified spacer were prepared and evaluated in immunization trials in mice and rabbits. Immunization with conjugate vaccine possessing a structurally diversified linker induced higher IgG titers against Candida albicans cell wall phosphomannan than a conjugate with a structurally uniform linker. These results suggest that affinity maturation and the specific antibody response can be shifted towards recognition of the desired hapten by employing a linker with diversified configuration.
用于共价连接β-
甘露二糖糖结合物的系链会影响抗白色念珠菌兔
抗体的特异性。我们制备了两种糖共轭物,它们含有(1 → 2)-β-
甘露二糖,通过结构一致或立体分化的间隔与鸡
血清白蛋白(CSA)连接,并在小鼠和兔子的免疫试验中进行了评估。用具有结构多样化连接体的共轭疫苗进行免疫,与具有结构统一连接体的共轭疫苗相比,能诱导出更高的针对白色念珠菌细胞壁
磷甘露的 IgG 滴度。这些结果表明,通过使用结构多样化的连接体,亲和力成熟和特异性
抗体反应可转向对所需合蛋白的识别。