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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Subcellular insight into cholesterol-mediated proliferation of the tick cell line
 KROPÁČKOVÁ, Sára
Arthropods, including ticks, are not able to synthetise cholesterol de novo. However, cholesterol is an essential component of their cell membranes and serves as a precursor for the synthesis of steroid hormones. In this thesis, I looked at the biological function of exogenous cholesterol on the tick Ixodes ricinus cell line IRE/CTVM19. I verified the need for cholesterol supplementation in the growth medium for proper cell proliferation. Cellular proliferation was stimulated by cholesterol and not by other sterols (ergosterol, sitosterol). We further explored the two assumed aforementioned cholesterol cellular roles, but also investigated the role of cholesterol as a signal molecule: The effect of cholesterol sensing is described on the tick cell level, as well as on the level of the whole organism, using the ex vivo feeding system of ticks. This work provides novel insights into the cholesterol biology of ticks and tick cells, increasing our understanding of tick-host blood molecules' interaction.
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Diferenciální exprese transkriptů slinných žláz klíštěte \kur{Ixodes ricinus}
 KROPÁČKOVÁ, Sára
Ticks are using different mechanisms for host immune system suppression. In this thesis, I compared ten transcripts from ticks salivary glands, which are differentially expressed during feeding on live animal and artificial systems. Further, a tick protein anticomplement 1, AC1, was chosen and subjected to deeper investigation, because of the significant difference in expression during feeding. Serum with specific antibodies was made and AC1 expression levels were examined in nymphs and adults, during feeding on different hosts. Moreover, any potential interacting partners from host serum through covalent binding were tested. This study contributes to the understanding of regulation of expression and funtional characterisation of tick salivary proteins.
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See also: similar author names
3 Kropáčková, Sabina
2 Kropáčková, Šárka
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