中国寄生虫学与寄生虫病杂志 ›› 1997, Vol. 15 ›› Issue (6): 340-344.

• 论著 • 上一篇    下一篇

约氏疟原虫红外期体外培养及影响因素的研究

陈孙孝; 黄复生; 王兴相; 况明书; 曹晓东   

  1. 第三军医大学寄生虫学教研室
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1997-12-28 发布日期:1997-12-28

IN VITRO CULTIVATION OF THE EXOERYTHROCYTIC STAGE OF PLASMODIUM YOELII AND AFFECTING FACTORSINVOLVED

Chen Sunxiao; Huang Fusheng; Wang Xingxiang; Kuang Mingshu; Cao Xiaodong   

  1. Department of parasitology; Third Military Medical University; Chongqing 630038
  • Received:1900-01-01 Revised:1900-01-01 Online:1997-12-28 Published:1997-12-28

摘要: 目的 :Wistar大鼠原代肝细胞 -约氏疟原虫红外期体外培养及若干因素的初步探讨。方法 :体外培养。结果 :用 15%小牛血清培养基培养原代肝细胞 ,培养密度为 2万 /孔 , 孔径为 16mm, 接种约氏疟原虫子孢子后培养 48h,获得红外期疟原虫 ( EEF) , 其肝细胞感染率达 0 .0 35%±0 .0 13% ; 接近成熟的 EEF直径达 4 0 .3× 31.6μm, 有 10 0多个核,其 EEF可达 4 - 10个 / cm2 。经0 .0 1%乙二胺四乙酸 ( EDTA)洗脱肝细胞 ,离心 ,腹腔
接种小鼠 ,第 7d血检原虫阳性。肝细胞密度为 0 .4万 /孔、 4万 /孔组及 10 %小牛血清组均未见 EEF。结论 :用含 15%小牛血清培养基、培养密度为 2万 /孔的 Wistar大鼠原代肝细胞较适合约氏疟原虫红外期的发育。

关键词: 约氏疟原虫, 红外期, 体外培养, Wistar大鼠, 原代肝细胞, 小牛血清

Abstract: AIM:To cultivate the exoerythrocytic stage of Plasmodium yoelii in vitro and to study
some involved affecting factors. METHOD:In vitro cultivation.RESULTS:The monolayer hepatocytes grown in 16 - mm plastic cell culture dishes were inoculated with sporozoite suspension prepared from
Anopheles stephensi mosquitoes for 48 hours. At a final density of2×104 cells per well, the infection
rate of hepatocyte, cultured in medium supplemented with 15 % bovine serum, was 0.035± 0.013%, the
diameter of the nearly mature EEF of Plasmodium yoelii was up to 40.3×31.6 μm, and contained more than 100 nuclei, the number of EEF might be 4- 10/cm2. An intraperitoneal inoculation of the EE schizonts to mice could induce parasitemia. At a final density of 0.5×104 or 4×104 cells per well or the hepatocytes cultured in medium supplemented with 10% bovine serum, no EEF could be observed. CONCLUSION: The density of hepatocytes and culture medium are important for the cultivation of the EE stage of Plasmodium yoelii. This procedure will lay foundation for the further studies of the sporozoite invasion, the development of EEF and the affecting factors involved.

Key words: Plasmodium yoelii, exoerythrocytic stage, cultivation in vitro, hepatocytes, Wistar rats, bovine serum