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Stimuli‐Responsive Nanotechnology for RNA Delivery
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Stimuli‐Responsive Nanotechnology for RNA Delivery
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Journal Article
Stimuli‐Responsive Nanotechnology for RNA Delivery
2023
Overview
Ribonucleic acid (RNA) drugs have shown promising therapeutic effects for various diseases in clinical and preclinical studies, owing to their capability to regulate the expression of genes of interest or control protein synthesis. Different strategies, such as chemical modification, ligand conjugation, and nanotechnology, have contributed to the successful clinical translation of RNA medicine, including small interfering RNA (siRNA) for gene silencing and messenger RNA (mRNA) for vaccine development. Among these, nanotechnology can protect RNAs from enzymatic degradation, increase cellular uptake and cytosolic transportation, prolong systemic circulation, and improve tissue/cell targeting. Here, a focused overview of stimuli‐responsive nanotechnologies for RNA delivery, which have shown unique benefits in promoting RNA bioactivity and cell/organ selectivity, is provided. Many tissue/cell‐specific microenvironmental features, such as pH, enzyme, hypoxia, and redox, are utilized in designing internal stimuli‐responsive RNA nanoparticles (NPs). In addition, external stimuli, such as light, magnetic field, and ultrasound, have also been used for controlling RNA release and transportation. This review summarizes a wide range of stimuli‐responsive NP systems for RNA delivery, which may facilitate the development of next‐generation RNA medicines. Ribonucleic acid (RNA) therapeutics have demonstrated great potential for treating various diseases. Nanoparticle delivery technologies can protect RNAs from degradation, increase cellular uptake and cytosolic transportation, prolong systemic circulation, and improve tissue/cell targeting. The review summarizes a wide range of stimuli‐responsive nanoparticle systems for RNA delivery, highlighting their unique features and offering insights into the development of next‐generation RNA nanomedicines.
