Kruger F J, Wolmarans C T
Research Institute for Diseases in a Tropical Environment of the South African Medical Research Council, Nelspruit.
Onderstepoort J Vet Res. 1990 Jun;57(2):137-9.
The teguments of adult Schistosoma mattheei from cattle and buffalo, S. hippopotami from hippopotamus and S. margrebowiei from lechwe were examined by means of scanning electron microscopy for cells possibly engaged in immunological action. Leukocytes were observed on the teguments of the schistosomes from all 4 host species. Although certain of these cells seemed to be fused to the surface membrane of the worms, they did not display pseudopodia. The tegument of certain schistosomes from buffalo exhibited cells the size of platelets with dendritic structures connected to the tegument of the parasite. The results seem to indicate that, as with laboratory hosts, naturally infected domestic and wild hosts are unable to mount an effective cellular response against the tegument of live adult shistosomes. The possible role of platelets in immunology against schistosomes is mentioned.
利用扫描电子显微镜对来自牛和水牛的马氏血吸虫成虫、来自河马的河马血吸虫以及来自水羚的马格雷博维血吸虫的皮层进行了检查，以寻找可能参与免疫作用的细胞。在所有4种宿主物种的血吸虫皮层上均观察到了白细胞。尽管其中某些细胞似乎与虫体的表面膜融合，但它们并未显示出伪足。来自水牛的某些血吸虫的皮层表现出一些细胞，其大小与血小板相当，并具有与寄生虫皮层相连的树突状结构。结果似乎表明，与实验室宿主一样，自然感染的家养和野生宿主均无法对活的成年血吸虫的皮层产生有效的细胞反应。文中提到了血小板在针对血吸虫的免疫中的可能作用。
