Quaternization drives spleen-to-lung tropism conversion for mRNA-loaded lipid-like nanoassemblies.
Theranostics
; 14(2): 830-842, 2024.
Article
en En
| MEDLINE
| ID: mdl-38169552
ABSTRACT
Background:
As the overwhelming majority of advanced mRNA delivery systems are preferentially accumulated in the liver, there is an accelerating growth in the demand for the development of non-liver mRNA delivery platforms.Methods:
In this study, we prepared cationic lipid-like nanoassemblies through a N-quaternizing strategy. Their physicochemical properties, in vitro mRNA delivery efficiency, and organ tropism in mice were investigated.Results:
Introduction of quaternary ammonium groups onto lipid-like nanoassemblies not only enhances their mRNA delivery performance in vitro, but also completely alters their tropism from the spleen to the lung after intravenous administration in mice. Quaternized lipid-like nanoassemblies exhibit ultra-high specificity to the lung and are predominantly taken up by pulmonary immune cells, leading to over 95% of exogenous mRNA translation in the lungs. Such mRNA delivery carriers are stable even after more than one-year storage at ambient temperature.Conclusions:
Quaternization provides an alternative method for design of new lung-targeted mRNA delivery systems without incorporation of targeting ligands, which should extend the therapeutic applicability of mRNA to lung diseases.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Bazo
/
Nanopartículas
Límite:
Animals
Idioma:
En
Revista:
Theranostics
Año:
2024
Tipo del documento:
Article
País de afiliación:
China
Pais de publicación:
Australia