摘要
选用一组抗恶性疟原虫红内期裂殖体抗原gp195的单克隆抗体,分析海南省、江苏省恶性疟原虫分离株gp195的抗原差异。间接荧光抗体试验表明,6个恶性疟原虫分离株的gp195抗原既合共同性抗原决定簇,也含特异性抗原决定簇。根据原虫对该组单抗的反应差异,可划分为两个主要的gp195血清型。恶性疟原虫FCC_(8705)/JS为Ⅰ型;FCC/HN为Ⅱ型,FCC_(7802)/HN、FCC_(8702)/HN为Ⅱ_2型; FCC_(7801)/HN、FCC_(8701)/HN为Ⅰ+Ⅱ混合型。免疫印迹法显示,恶性疟原虫FCC_(8705)/JS、FCC_1/HN、FCC_(8702)/HN、FCC_(7801)/HN gp195分子量分别为210kD_8、200kD_a、200kD_a、198kD_a。其中江苏FCC_(8705)/JS的gp195分子量高于其它三个海南分离株。作者对gp195抗原差异的规律及其对疟疾疫苗研究的影响作了讨论。
The antigenic diversity of asexual merozoite surface antigen precursor gp195 among 6 isolates of Plasmodium falciparum from Hainan and Jiangsu provinces of China was investigated with a panel of murine anti-gp195 McAbs by indirect immunofluorescence assay and Western blotting. The results show that all isolates express certain strain-common epitopes of gp195, and at the same time express or lack some strain-specific epitopes. The 6 isolates can be divided into two major gp195 serotypes according to the reactivity patterns with the panel of anti-gp195 McAbs. Remarkable molecular weight difference in gp195 was found among 4 isolates of P. falciparum in which the Jiangsu isolate possesses a large size of gp195 (210kD.) than the other 3 Hainan isolates (≤200kDa). The polymorphism of gpl95 and it's impact on the development of antimalarial vaccine is discussed.
出处
《中国寄生虫学与寄生虫病杂志》
CAS
CSCD
北大核心
1991年第2期110-113,共4页
Chinese Journal of Parasitology and Parasitic Diseases
基金
国家自然科学基金
编号3860869
关键词
疟原虫
裂殖体
抗原gp195
Plasmodium falciparum, schizont surface antigen, gp195, antigenic diversity.
