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In vitro cultivation of the trematode species Trichobilharzia regenti
 Vrbová, Kristýna ; Kašný, Martin (advisor) ; Skelly, Patrick (referee)
The class Trematoda includes many pathogenic representatives. Main subject of this thesis, avian schistosome Trichobilharzia regenti, is a close relative to the important human pathogen Schistosoma mansoni (family Schistosomatidae). In vitro cultivation of trematodes enables closer understanding of their biology and parasite- host interactions; however, no trematode species has been successfully kept in vitro from the egg stage to the adults producing eggs. Many studies are focused on the problematic of S. mansoni cultivation, but data concerning T. regenti cultivation remain scarce. Only the ability of T. regenti cercariae to transform into schistosomula in vitro was documented, with following survival in a culture medium for a few days. Comparison of eight transformation methods was performed with T. regenti cercariae. Based on the number of tailless cercarial bodies obtained, five transformation methods were selected for further evaluation of the early schistosomula characteristics (glycocalyx shedding, penetration glands emptying and survival in vitro). It was observed that the largest quantity of cercarial bodies can be obtained by using a syringe needle or the BeadBeater cell disrupter. The largest quantity of schistosomula meeting the criteria of early schistosomulum was recorded after...
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