中国寄生虫学与寄生虫病杂志 ›› 1998, Vol. 16 ›› Issue (5): 376-379.

• 实验研究 • 上一篇    下一篇

应用二氧化碳培养箱连续培养大量恶性疟原虫配子体

许学年; 冯正; 杨柏林; 王聚君; 胡薇; 倪齐珍   

  1. 中国预防医学科学院寄生虫病研究所
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1998-10-31 发布日期:1998-10-31

CONTINUOUS CULTIVATION OF A LARGE NUMBER OF PLASMODIUM FALCIPARUM GAMETOCYTES IN CARBON DIOXIDE INCUBATOR *

Xu Xuenian; Feng Zheng; Yang Bailin; Wang Jujun; Hu Wei; Ni Qizhen   

  1. Institute of Parasitic Diseases; Chinese Academy of Preventive Medicine **; Shanghai 200025
  • Received:1900-01-01 Revised:1900-01-01 Online:1998-10-31 Published:1998-10-31

摘要: 目的:为建立在二氧化碳(CO2)培养箱中连续培养大量恶性疟原虫(P.f)配子体(G)的方法。方法:使用加入不同量NaHCO3的培养基,观察比较G的消长。结果:在培养第5d(d5)出现G,至d11-d13达到高峰;实验组与对照组G的峰值分别为1.88%±0.61%和1.29%±0.41%(P<0.05),表明实验组培养后期使用含较高浓度NaHCO3的完全培养基,有助于G的分化。Ⅰ-Ⅴ期G的高峰分别出现于培养d5、d7、d11、d13和d15。d15V期G率为7.1%— 52.6%,平均为24.3%。雌、雄G比例为12.8∶1。原虫从液氮中取出复苏后,加入新鲜红细胞连续分皿24代,仍保持较高的产生G的能力。经薄膜饲血器多次人工感染斯氏按蚊(Anophelesstephensi),解剖328只蚊胃,未见卵囊。结论:本虫株使用该方法可以持续稳定地取得大量P.
fG。

关键词: 恶性疟原虫, 配子体, 体外培养

Abstract: AIM: To establish a method for continuously cultivating a large number of P.
falciparum
gametocytes in vitro using carbon dioxide incubator.METHODS: The number of
gametocytes produced in experimental and control groups was compared after the addition of
various concentrations of NaHCO 3 to the culture medium. RESULTS:The gametocytes began to rise
on day 5 of cultivation and reached a peak on day 11-13. The peak gametocyte loads were 1.9%±
0.6% and 1.3%±0.4%( P <0.05) in experimental and control group , respectively, indicating that the complete medium with 30 mmol/L sodium bicarbonate was benificial to gametogenesis. The numbers of stages I - V gametocytes rose to a peak on d5, d7, d11, d13 and d15, respectively. On day 15 the percentage of stage V gametocytesw as 7. 1% - 52. 6% w ith an average of 24. 3%. The ratio of macrogametocyte to microgametocyte was 12. 8∶1. The parasites were able to produce high gametocytaemia up to 24th subculture after thawing. Laboratory reared Anopheles stephensi fed through membrane on blood infected with P. falciparum were disected, no oocyst was found in the midgut. CONCLUSION: A culture system which could consistently and stably produce a large number of gametocytes of P. falciparum was established.

Key words: Plasmodium falciparum, gametocyte, cultivation in vitro