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免疫复合物(Immuno Complex IC)的形成是机体正常免疫应答的一部分,当病原体被相应抗体复盖后,有利于吞噬细胞的吞噬。小分子的可溶性抗原,不易被吞噬细胞捕捉,当组成免疫复合物后即可增大,且在补体的作用下将其粘附于其他细胞,有利于捕获与吞噬。较大的靶细胞(肿瘤细胞、寄生虫等)被抗体作用后,也易于受到K细胞的杀伤。因此IC在体内是经常形成的,但免疫复合物所引起的病理性损伤却很少发生。因此免疫复合物病(IC disease,ICD)的发生是有条件的,只有当IC形成后不能及
The formation of immune complex (Immuno Complex IC) is part of the body’s normal immune response, when the pathogen is covered by the corresponding antibodies, phagocytosis of phagocytes. Soluble small molecule soluble antigen, easy to capture by phagocytes, when the composition of immune complexes can be increased, and in the complement of the role of adhesion to other cells, is conducive to capture and phagocytosis. Larger target cells (tumor cells, parasites, etc.) are also susceptible to K-cell killing by antibodies. Therefore, IC is often formed in the body, but immune complexes caused by pathological lesions are rare. Therefore, the occurrence of immune complex disease (ICD) is conditional only when IC can not be formed