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IgA可溶性免疫复合物对中性粒细胞趋化作用的抑制效应。

Suppressive effect of IgA soluble immune complexes on neutrophil chemotaxis.

作者信息

Ito S, Mikawa H, Shinomiya K, Yoshida T

出版信息

Clin Exp Immunol. 1979 Sep;37(3):436-40.

Abstract

The effect of IgA and IgG soluble immune complexes (SIC) on neutrophil chemotaxis was investigated. Six types of SIC were prepared from kappa-type IgA and IgG myeloma proteins: IgA-anti-kappa chain antibody SIC in IgA excess, IgA-anti-kappa chain antibody in SIC in anti-kappa chain antibody excess, IgA-anti-alpha chain antibody SIC in IgA excess, IgG-anti-kappa chain antibody SIC in IgG excess, IgG-anti-kappa chain antibody SIC in anti-kappa chain antibody excess, and IgG-anti-gamma chain antibody SIC in IgG excess. Three types of IgA SIC had a marked suppressive effect on neutrophil chemotaxis, while IgG SIC, free IgA, free anti-kappa chain antibody, and free anti-gamma chain antibody showed no inhibitory activity. This suppressive effect on neutrophil chemotaxis caused specifically by polymerized IgA was a cell-directed one and was expressed in a concentration dependent manner.

摘要

研究了IgA和IgG可溶性免疫复合物(SIC)对中性粒细胞趋化性的影响。由κ型IgA和IgG骨髓瘤蛋白制备了六种类型的SIC:IgA过量的IgA-抗κ链抗体SIC、抗κ链抗体过量的IgA-抗κ链抗体SIC、IgA过量的IgA-抗α链抗体SIC、IgG过量的IgG-抗κ链抗体SIC、抗κ链抗体过量的IgG-抗κ链抗体SIC以及IgG过量的IgG-抗γ链抗体SIC。三种类型的IgA SIC对中性粒细胞趋化性有显著的抑制作用,而IgG SIC、游离IgA、游离抗κ链抗体和游离抗γ链抗体均无抑制活性。这种由聚合IgA特异性引起的对中性粒细胞趋化性的抑制作用是细胞定向的,并以浓度依赖的方式表现出来。

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