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目前已公认保护性免疫的主要作用机理在于特异性抗体与未致敏细胞的协同作用。参予此种免疫过程的抗体成分(IgG或IgE)、细胞成分(嗜酸粒细胞或巨噬细胞)及协同作用的特殊机理尚待阐明。以往的实验结果说明攻击感染后的血吸虫童虫可以在免疫猴体的皮肤或肺内被杀死;从免疫小鼠及大鼠肺部取得的(攻击感染后的)童虫,一般都可作为宿主免疫袭击的靶子。因为童虫的表皮是浆膜所组成,故易为免疫袭击所损伤。
It is now recognized that the main mechanism of action of protective immunity lies in the synergistic effect of specific antibodies and non-sensitized cells. The specific mechanisms by which antibody components (IgG or IgE), cellular components (eosinophils or macrophages) and their synergistic actions to participate in such an immunization process are yet to be elucidated. Previous experimental results indicate that the schistosomula schistosomiasis can be killed in the skin or lungs of immunized monkeys after challenge with the challenge. Schistosomiasis (after challenge-infected) obtained from both immunized and rat lungs can generally be used as Host immune attack target. Because the squirrel’s epidermis is composed of serosa, it is easy for the immune attack damage.