A Phenylboronate-Functionalized Polyion Complex Micelle for ATP-Triggered Release of siRNA


  • This research is supported by the Japan Society for the Promotion of Science (JSPS) through the “Funding Program for World-Leading Innovative R&D on Science and Technology (FIRST Program).”


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PIC-ing a winner: siRNA encapsulated by a phenylboronate-functionalized polyion complex (PIC) micelle shows binding between the phenylboronate and the 3′ ribose of the siRNA (see scheme), stabilizing the complex under conditions equivalent to the extracellular environment. This complex is disrupted in response to addition of ATP, at a concentration comparable to that inside cells.