中国寄生虫学与寄生虫病杂志 ›› 1988, Vol. 6 ›› Issue (2): 115-117.

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恶性疟单克隆抗体免疫荧光特性与其保护性水平关系的实验观察

李纪良,李英杰   

  1. 第一军医大学疟疾免疫研究室
  • 收稿日期:2017-01-10 修回日期:2017-01-10 出版日期:1988-05-31 发布日期:2017-01-10

PLASMODIUM FALCIPARUM: CORRELATION BETWEEN IMMUNO FLUORESCENT PROPERTIES OF MONOCLONAL ANTIBODIES AND THEIR PROTECTIVE ACTIVITIES

  • Received:2017-01-10 Revised:2017-01-10 Online:1988-05-31 Published:2017-01-10

摘要: IFA是一种广泛应用于疟疾研究的血清学方法,本文用抗恶性疟原虫的McAb,就疟疾抗体的免疫荧光特性与其保护性水平的关系进行分析。结果指出,参与机体保护性反应的疟疾抗体作用的三种机制,即McAb的抑制活性、调理活性和细胞毒活性,与McAb的荧光滴度均无明显联系,荧光滴度高的McAb,其保护性不一定好,反之亦然。提示IFA滴度不能作为衡量患疟个体保护性免疫的一种指标。保护性McAb与疟原虫反应时有一定的荧光分布特点。荧光图象呈散在小点状、蜂窝状且边缘明亮的针对游离裂殖子或/和成熟裂殖体周缘膜抗原的McAb,可能具有较好的保护活性。

关键词: 荧光特性, 单克隆抗体, 保护性, 实验观察, 恶性疟原虫, 抗体免疫, 荧光图象, 细胞毒活性, 杂交瘤细胞, 荧光抗体

Abstract: The correlation between the immunofluorescent propertics of the monoclonal antibo-dies against Plasmodium falciparum and their protective activities were investigated. The results showed that tne protective activities of tne monoclonal antibodies including inhibition, opsonization, and cytotoxicity on P. falciparum were not associated with thc antibody level as mcasured by the indirect immunofluorescent antibody assay (P 0.05). Monoclonal antibodies with spot-or pin-like fluorescence and honeycomb-like bright fluorescence on thc cdge of the mature parasite, recognizing surface antigens of free merozoite and segmenter, exhibited cxcellent protective activities.