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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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Using Lipid Nanoparticles for the Delivery of Chemically Modified mRNA into Mammalian Cells
Gokulnath Mahalingam1, Aruna Mohan1, Porkizhi Arjunan1
1Centre for Stem Cell Research, Christian Medical College Campus.
Journal of Visualized Experiments : Jove
|June 27, 2022
Summary
Chemically modified messenger RNA (mRNA) delivered via lipid nanoparticles enhances stability and translation efficiency in mammalian cells. This optimized protocol facilitates targeted gene expression for therapeutic applications.
Area of Science:
- Biotechnology
- Molecular Biology
- Drug Delivery Systems
Background:
- Chemically modified messenger RNA (mRNA) shows therapeutic potential in vaccines and protein replacement therapies.
- Lipid nanoparticles are effective and safe delivery vectors for RNA molecules, with some already in clinical use.
Purpose of the Study:
- To present an optimized protocol for lipid nanoparticle-mediated mRNA delivery.
- To demonstrate enhanced mRNA stability and translation efficiency using specific modifications and delivery systems.
Main Methods:
- Synthesis of functional N1-methylpseudouridine-UTP (me1Ψ-UTP) modified eGFP mRNA.
- Preparation of cationic liposomes and electrostatic complex formation with mRNA.
- Evaluation of transfection efficiencies and eGFP expression in mammalian cells.
Main Results:
- Modified mRNA demonstrated improved stability when complexed with cationic liposomes.
- Increased eGFP mRNA translation efficiency and stability were observed in mammalian cells.
- The protocol successfully enabled target gene expression via lipid nanoparticle delivery.
Conclusions:
- The optimized protocol enables efficient synthesis and delivery of modified mRNA using cationic liposomes.
- This approach enhances mRNA stability and translation, supporting therapeutic gene expression in mammalian cells.
