Journal
PARASITOLOGY INTERNATIONAL
Volume 59, Issue 4, Pages 647-652Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.parint.2010.08.010
Keywords
Cestode; Echinococcus multilocularis; Protoscolex; RNAi; siRNA
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Funding
- Ministry of Education Culture Sports Science and Technology of Japan [20380164]
- Ministry of Health Labour and Welfare of Japan
- Swiss National Science Foundation [3100A0-111780]
- Grants-in-Aid for Scientific Research [20380164] Funding Source: KAKEN
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We investigated the potential of gene silencing in Echinococcus multilocularis protoscoleces using RNA interference (RNAi) For the introduction of siRNA soaking and electroporation were first examined for their effects on the viability of protoscoleces and their efficacy for siRNA introduction Consequently electroporation using 100 V and 800 mu F showed the optimal results This electroporation procedure was then evaluated for its ability to Induce RNAi in protoscoleces using siRNAs targeting the 14 3 3 and elp genes It was found that the levels of 14 3 3 and elp mRNA in 14 3 3 siRNA and elp siRNA-treated protoscoleces were reduced to 21 8 +/- 2 6 and 35 5 +/- 04% of those of the untreated control by day 3 respectively Moreover the target proteins significantly decreased in the siRNA-treated samples by day 15 In the analysis of viability the untreated control electroporation control 14 3 3 siRNA-treated and elp siRNA treated samples displayed 98 4 +/- 1 4 83 0 +/- 25 58 0 +/- 23 0 and 55 1 +/- 146% viability respectively on day 15 In conclusion we successfully demonstrated that RNAi mediated the knock-down of target gene expression in E multilocularis protoscoleces at both the transcriptional and translational levels (C) 2010 Elsevier Ireland Ltd All rights reserved
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