中国寄生虫学与寄生虫病杂志 ›› 1988, Vol. 6 ›› Issue (1): 53-56.

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人红细胞膜血型糖蛋白A在恶性疟原虫入侵中的受体作用

张世民,李建新,杨志铭,魏尧梅,管惟滨,周元昌   

  1. 第二军医大学生化教研室; 第二军医大学生化教研室; 第二军医大学生化教研室; 第二军医大学生化教研室; 寄生虫学教研室; 寄生虫学教研室
  • 收稿日期:2017-01-10 修回日期:2017-01-10 出版日期:1988-02-28 发布日期:2017-01-10

THE RECEPTOR ROLE OF GLYCOPHORIIN A DURING THE INVASION OF HUMAN ERYTHROCYTE BY PLASMODIUM FALCIPARUM

  • Received:2017-01-10 Revised:2017-01-10 Online:1988-02-28 Published:2017-01-10

摘要: 本文在体外观察了血型糖蛋白A(GPA)及其抗体、鸡卵类粘蛋白(OM)、α_1-酸性糖蛋白(α_1-AGP)、麦胚凝集素(WGA)等对恶性疟原虫入侵红细胞的影响。在低浓度下,GPA、抗GPA-IgG和WGA对恶性疟原虫的入侵有明显的抑制作用,其浓度和抑制率间呈双曲线型量效关系,有饱和趋势。而OM、α_1-AGP及非特异性的抗血清无明显的作用。从配体-受体作用的生物学特性的角度,证实了GPA与恶性疟原虫的结合具有高度的特异性、高度的亲和力及有饱和趋势,其结合后能产生特定的生物学效应。

关键词: 恶性疟原虫, 血型糖蛋白A, 人红细胞膜, 裂殖子, 受体作用, 抑制作用, 量效关系, 凝集素, 军医大学生, 抑制率

Abstract: The effects of GPA, anti-GPA IgG, α1acid glycoprotcin (α1-AGP), ovomucoid (OM) and wheat germ agglutinin (WGA) on the invasion of erythrocytes by P. falciparum were obseryed in vitro. GPA, anti-GPA IgG and WGA at low concentrations had obviously inhibitory effects on thc invasion. There were hyperbolic relationships between the concentrations of these inhibitors and their inhibition rates. OM, α1-AGP and non-spccific anti-serum had no obvious effect on the invasion. It is confirmed for the first time from the biological characteristics of receptor-ligand interaction that thc combination of GPA with P. falciparum merozoites has high spccificity, high affinity with a tendency to sa-turation and can produce specific biological effects.