中国寄生虫学与寄生虫病杂志 ›› 2009, Vol. 27 ›› Issue (1): 20-86.

• 研究简报 • 上一篇    下一篇

同位素微量试验法检测新化合物抗恶性疟原虫活性试验

陈兆国1 *,Alicia MORENO2,Agustin BENITO2,Marta MORENO2,
Pedro J. BERZOSA2,Aida de LUCIO2, Eva MOYANO2
  

  1. 1 中国农业科学院上海兽医研究所,农业部动物寄生虫学重点开放实验室,上海 200232;2 西班牙卡洛斯三世健康研究院国家微生物中心,马德里 28220
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-02-28 发布日期:2009-02-28
  • 通讯作者: 陈兆国

Detection of Antimalarial Activity for New Compounds by Isotopic Microtest

CHEN Zhao-guo1 *, Alicia MORENO2, Agustin BENITO2, Marta MORENO2,Pedro J. BERZOSA2, Aida de LUCIO2, Eva MOYANO2   

  1. 1 Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Animal Parasitology, Ministry of Agriculture, Shanghai 200232, China; 2 Laboratorio de Malaria, Servicio de parasitología, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Crta. Majadahonda-Pozuelo Km2, 28220 Madrid, Spain
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-02-28 Published:2009-02-28
  • Contact: CHEN Zhao-guo

摘要: 将连续培养的恶性疟原虫克隆系Dd2和3D7用6%山梨醇作2次同步处理。处理后第2代原虫用健康人红细胞稀释至红细胞比容为2.5%、原虫血症为0.5%,并加入2 μCi/ml 8-3H-次黄嘌呤,利用同位素微量试验法检测20个新化合物的抗疟原虫活性。结果显示20个新化合物均无明显的抗疟原虫活性;对照药物氯喹和奎宁显示出良好的抗疟活性,表明同位素微量试验法是一个稳定、可靠的体外筛选新抗疟药的方法。

关键词: 恶性疟原虫, 抗疟药, 同位素微量试验法

Abstract: Two clone lines (Dd2 and 3D7) of Plasmodium falciparum were cultivated continuously in human erythrocytes at 37°C in RPMI 1640 medium with human serum and subjected to 6% sorbitol treatment 2 times in order to obtain highly synchronized cultures. The second generation parasites after the treatment were diluted with human RBC to be a suspension of P. falciparum-human RBC at 2.5% hematocrit and 0.5% parasitemia, and 2 μCi/ml of 8-3H-hypoxanthine was added. Isotopic microtest was employed to detect the antimalarial activity for 20 new compounds. Results revealed that the 20 compounds showed no anti-malarial activity, while the control drugs, chloroquine and quinine, exhibited high efficacy, indicating that the isotopic microtest is a stable and reproducible assay for screening new antimalarials.

Key words: Plasmodium falciparum, Antimalarial drug, Isotopic microtest