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Using Lipid Nanoparticles for the Delivery of Chemically Modified mRNA into Mammalian Cells
Published on: June 10, 2022
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Lipid-based mRNA vaccine delivery systems.
Patrick Midoux1, Chantal Pichon
1Centre de Biophysique Moléculaire, CNRS UPR4301, Inserm and Université d'Orléans, Orléans, 45071, cedex 02, France.
Expert Review of Vaccines
|December 27, 2014
Summary
Synthetic messenger RNAs (mRNAs) show promise for vaccines against cancer and infections. Lipid-based formulations enhance mRNA delivery to dendritic cells, improving immune responses and reducing required doses.
Area of Science:
- Biopharmaceutics
- Vaccinology
- Immunology
Background:
- Synthetic messenger RNAs (mRNAs) are emerging as potent biopharmaceuticals for vaccines.
- Clinical trials show direct mRNA administration is safe and elicits tumor-specific immunity.
- Formulating mRNAs with carriers can enhance specificity and dendritic cell (DC) uptake.
Purpose of the Study:
- To review lipid-based formulations (LBFs) for synthetic mRNA delivery.
- To discuss strategies for selective mRNA LBF delivery to DCs.
- To explore methods for efficient intracellular mRNA translation.
Main Methods:
- Review of preclinical studies on mRNA LBFs.
- Analysis of strategies for targeting LBFs to DCs using carbohydrates or glycomimetics.
- Investigation of pH-sensitive lipids/polymers for endosomal escape.
Main Results:
- Lipid-based formulations (LBFs) demonstrate preclinical efficacy for mRNA delivery.
- Decorating LBFs with carbohydrates enhances DC endocytosis and intracellular accumulation.
- pH-sensitive materials facilitate mRNA escape from endosomes for improved translation.
Conclusions:
- mRNA LBFs offer a promising platform for enhanced vaccination strategies.
- Targeted delivery to DCs via LBFs can improve immune responses and reduce dosage.
- Efficient endosomal escape is crucial for maximizing mRNA translation and therapeutic effect.
Keywords:
RNA vaccinesdendritic cellsglycomimeticsglycotargetinghistidinelipid-based formulationslipoplexeslipopolyplexesmannose receptorspH-sensitive deliveryMore Related Videos
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