Developing an in vitro method for Eimeria tenella attachment to its preferred and non-preferred intestinal sites

作者：Khazandi Manouchehr^*; Tivey David

来源：Experimental Parasitology, 2010, 125(2): 137-140.

DOI：10.1016/j.exppara.2010.01.007

• Coccidiosis
• Eimeria tenella
• Frozen section method
• Attachment

A frozen section method utilising chicken intestinal tissue was developed to study the Eimeria tenella attachment ex vivo. In order to examine Eimeria-epithelial cell attachment, 10(5) E. tenella sporozoites were incubated with each caecal frozen section (6, 10 and 14 mu m) for 1 h in 5% CO(2) incubator at 41 degrees C. E. tenella sporozoites attached successfully to enterocytes in 14 mu m thick of caecal sections. Sporozoite attachment to caecal sections was shown to be dependent on the number of parasites added. To evaluate the method, E. tenella sporozoites were incubated to its preferred (caecum) and non-preferred (duodenum and jejunum) intestinal sites. The number of sporozoites attached to the caecal enterocytes was significantly greater (P < 0.0001) in comparison with the limited number of sporozoites attached to enterocytes of non-preferred intestinal sites. This method was shown to be able to reveal differences in binding capability and allows for comparison of intestinal site attachment.

• 出版日期2010-6