Transfection of Schistosoma mansoni by electroporation and the description of a new promoter sequence for transgene expression

Animals, Genetically Modified 0301 basic medicine 03 medical and health sciences Electroporation Time Factors Animals Gene Expression Schistosoma mansoni Transgenes Promoter Regions, Genetic Transfection Cells, Cultured
DOI: 10.1016/j.ijpara.2007.02.011 Publication Date: 2007-03-19T06:49:36Z
ABSTRACT
We sought to investigate the efficacy of electroporation for the introduction of plasmid-based DNA constructs into Schistosoma mansoni, and expanded our study to examine parameters governing transgene expression, including requirements of a 5' and 3' flanking sequence, as well as parasite developmental effects on transgene expression. We used luciferase as a reporter gene for this application. Our data show that electroporation allows the transfection of immature schistosomes, and defines 5' promoter sequence from the schistosome actin gene (SmAct1.1), coupled promiscuously with various 3' terminator sequences, as a powerful promoter of transgene expression in growing, but not early non-growing, schistosomula. The methodology described herein will facilitate ectopic expression of genes of interest in schistosomes.
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