An RNA origami octahedron with intrinsic siRNAs for potent gene knockdown

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The fields of DNA and RNA nanotechnology have established nucleic acids as valuable building blocks for functional nanodevices with applications in nanomedicine. Here, a simple method for designing and assembling a three‐dimensional (3D) scaffolded RNA origami wireframe structure with intrinsic functioning small interfering RNAs (siRNAs) embedded is introduced. Uniquely, the method uses an mRNA fragment as scaffold strand, which is folded by sequence‐complementarity of nine shorter synthetic strands. High‐yield production of the intended 3D structure is verified by transmission electron microscopy (TEM). Production of functional siRNAs is facilitated by incorporating recognition sites for Dicer at selected locations in the structure and efficient silencing of a target reporter gene is demonstrated.
TidsskriftBiotechnology Journal
StatusUdgivet - jan. 2019

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