| Autor: |
Laura Rotolo, Daryll Vanover, Nicholas C. Bruno, Hannah E. Peck, Chiara Zurla, Jackelyn Murray, Richard K. Noel, Laura O’Farrell, Mariluz Araínga, Nichole Orr-Burks, Jae Yeon Joo, Lorena C. S. Chaves, Younghun Jung, Jared Beyersdorf, Sanjeev Gumber, Ricardo Guerrero-Ferreira, Santiago Cornejo, Merrilee Thoresen, Alicia K. Olivier, Katie M. Kuo, James C. Gumbart, Amelia R. Woolums, Francois Villinger, Eric R. Lafontaine, Robert J. Hogan, M. G. Finn, Philip J. Santangelo |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Nature materials. |
| ISSN: |
1476-4660 |
| Popis: |
Messenger RNA has now been used to vaccinate millions of people. However, the diversity of pulmonary pathologies, including infections, genetic disorders, asthma and others, reveals the lung as an important organ to directly target for future RNA therapeutics and preventatives. Here we report the screening of 166 polymeric nanoparticle formulations for functional delivery to the lungs, obtained from a combinatorial synthesis approach combined with a low-dead-volume nose-only inhalation system for mice. We identify P76, a poly-β-amino-thio-ester polymer, that exhibits increased expression over formulations lacking the thiol component, delivery to different animal species with varying RNA cargos and low toxicity. P76 allows for dose sparing when delivering an mRNA-expressed Cas13a-mediated treatment in a SARS-CoV-2 challenge model, resulting in similar efficacy to a 20-fold higher dose of a neutralizing antibody. Overall, the combinatorial synthesis approach allowed for the discovery of promising polymeric formulations for future RNA pharmaceutical development for the lungs. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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Full text from SpringerLink