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Targeted delivery of a decoy oligodeoxynucleotide to a single ES cell by femtoinjection
Hisakage Funabashi1, Seitaro Oura, Mikako Saito
1Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology 2-24-16, Naka-cho, Koganei, Tokyo, Japan.
Abstract:
Femtoinjection has been proposed as a feasible approach for the targeted delivery of a decoy oligodeoxynucleotide (ODN) into a single ES cell for the study of transcription factor activity. Here, we evaluated the utility of decoy ODN delivery via femtoinjection in an ES cell model in which Venus fluorescent protein was expressed under the control of the tet-off system. Femtoinjection of a control decoy (Con-decoy) and a tetracycline response element decoy (TRE-decoy) into the cytoplasm had no apparent effect on Venus fluorescent protein expression; however, femtoinjection of the TRE-decoy into the nucleus successfully suppressed expression of the Venus fluorescent protein. We therefore conclude that it is feasible to suppress the activity of a transcription factor in a single ES cell by the delivery of a decoy ODN into the nucleus using the femtoinjection technique.
From The Clinical Editor:
The authors of this novel basic science study successfully demonstrate a femtoinjection technique to deliver a decoy oligodeoxynucleotide into a single ES cell.
