A Light‐Triggerable Nanoparticle Library for the Controlled Release of Non‐Coding RNAs. Issue 5 (20th December 2019)

• Record Type: Journal Article
• Authors: Blersch, Josephine; Francisco, Vitor; Rebelo, Catarina; Jiménez‐Balsa, Adrian; Antunes, Helena; Gonzato, Carlo; Pinto, Sandra; Simões, Susana; Liedl, Klaus; Haupt, Karsten; Ferreira, Lino
• Is Part Of: Angewandte Chemie international edition. Volume 59:Issue 5(2020)
• Page Start: 1985
• Page End: 1991
• Publication Date: 2019-12-20
• Subjects: high-throughput screening -- non-coding RNA -- nanoparticles -- polymers -- RNA delivery; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201911398
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: RNA‐based therapies offer a wide range of therapeutic interventions including the treatment of skin diseases; however, the strategies to efficiently deliver these biomolecules are still limited due to obstacles related to the cellular uptake and cytoplasmic delivery. Herein, we report the synthesis of a triggerable polymeric nanoparticle (NP) library composed of 160 formulations, presenting physico‐chemical diversity and differential responsiveness to light. Six formulations were more efficient (up to 500 %) than commercially available lipofectamine in gene‐knockdown activity. These formulations showed differential internalization by skin cells and the endosomal escape was rapid (minutes range). The NPs were effective in the release of siRNA and miRNA. Acute skin wounds treated with the top hit NP complexed with miRNA‐150‐5p healed faster than wounds treated with scrambled miRNA. Light‐activatable NPs offer a new strategy to topically deliver non‐coding RNAs. Abstract : A light‐sensitive nanoparticle library was synthesized to deliver non‐coding RNAs. Six formulations were more efficient (up to 500 %) than commercially available lipofectamine in gene‐knockdown activity. These formulations showed differential internalization by skin cells and the endosomal escape was rapid (minutes range). The utility of these light‐triggerable nanoparticles was demonstrated in the context of wound healing.