首页> 外文期刊>Infection and immunity >Alteration of the immunoglobulin G subclass responses in mice to lipopolysaccharide: effects of nonbacterial proteins and bacterial membrane phospholipids or outer membrane proteins of Proteus mirabilis.
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Alteration of the immunoglobulin G subclass responses in mice to lipopolysaccharide: effects of nonbacterial proteins and bacterial membrane phospholipids or outer membrane proteins of Proteus mirabilis.

机译:小鼠对脂多糖的免疫球蛋白G亚类反应的改变:奇异变形杆菌的非细菌蛋白和细菌膜磷脂或外膜蛋白的影响。

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The immunoglobulin M (IgM) and the IgG1, IgG2ab, and IgG3 subclasses of plaque-forming cells (PFC) specific for lipopolysaccharide (LPS) were measured after immunization of mice with LPS alone and compared with the responses to LPS in combination with nonbacterial proteins and with bacterial membrane phospholipid vesicles or two major outer membrane proteins from Proteus mirabilis. The relative numbers of IgG PFC belonging to the IgG1, IgG2, or IgG3 subclasses induced by immunization with LPS alone depended upon the type of LPS administered. Phospholipids and the proteins effected characteristic alterations in not only the strength but also the subclass of the IgG responses to LPS. The results suggest that the hydrophobic-hydrophilic nature or state of aggregation of the preparations plays a role in the induction of IgG1 and IgG2 subclasses of PFC specific for LPS. Complex formation with LPS and adjuvant was apparently necessary to obtain these effects.
机译:在单独用LPS免疫小鼠后,测量了免疫球蛋白M(IgM)和脂多糖(LPS)特异的噬菌斑形成细胞(PFC)的IgG1,IgG2ab和IgG3亚类,并将其与非细菌蛋白联合对LPS的反应进行比较以及细菌膜磷脂囊泡或两种来自变形杆菌的主要外膜蛋白。通过单独用LPS免疫诱导的属于IgG1,IgG2或IgG3亚类的IgG PFC的相对数量取决于所施用LPS的类型。磷脂和蛋白质不仅在强度上而且在对LPS的IgG响应的亚类方面都产生了特征性变化。结果表明,制剂的疏水亲水性质或聚集状态在对LPS特异的PFC的IgG1和IgG2亚类的诱导中起作用。与LPS和佐剂形成复合物显然是获得这些作用所必需的。

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