Journal
SMALL
Volume -, Issue -, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.202303713
Keywords
administrations; controlled-release; mRNA delivery; non-invasive; vectors
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mRNA therapy has great potential in various fields, but faces challenges in efficient delivery due to its negative charges and susceptibility to degradation. Conventional vectors such as viruses and liposomes are no longer sufficient, leading to the emergence of novel delivery vectors and strategies. This review discusses biomacromolecules, inorganic nanoparticles, controlled-release administration, and non-invasive administration as innovative solutions for mRNA delivery.
mRNA therapy has shown great potential in infectious disease vaccines, cancer immunotherapy, protein replacement therapy, gene editing, and other fields due to its central role in all life processes. However, mRNA is challenging to pass through the cell membrane due to its significant negative charges and degradation from RNase, so the key to mRNA therapy is efficient packaging and delivery of it with appropriate vectors. Presently researchers have developed various vectors such as viruses and liposomes, but these conventional vectors are now difficult to meet the growing requirement like safety, efficiency, and targeting, so many novel delivery vectors with unique advantages have emerged recently. This review mainly introduces two categories of novel vectors: biomacromolecules and inorganic nanoparticles, as well as two novel methods of control and administration based on these novel vectors: controlled-release administration and non-invasive administration. These novel delivery strategies have the advantages of high safety, biocompatibility, versatility, intelligence, and targeting. This paper analyzes the challenges faced by the field of mRNA delivery in depth, and discusses how to use the characteristics of novel vectors and administrations to solve these problems.
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