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Updated: Jul 24, 2026

Generation of Cationic Nanoliposomes for the Efficient Delivery of In Vitro Transcribed Messenger RNA
Published on: February 1, 2019
Protocol for in vitro transfection of mRNA-encapsulated lipid nanoparticles
Kounghwa Youn1, Soyeon Yoo2, Il Kwon Hwang3
1Medicinal Materials Research Center, Biomedical Research Division, Korea Institute of Science and Technology (KIST), Hwarang-ro14gil 5, Seongbuk-gu, Seoul 02792, Republic of Korea; KHU-KIST Department of Converging Science and Technology, Kyung Hee University, 7-13 Kyungheedae-ro 6-gil, Dongdaemun-gu, Seoul 02447, Republic of Korea.
Abstract:
Lipid nanoparticle (LNP) platforms are promising for mRNA therapeutics; however, while highly effective in vivo, commercial mRNA-LNPs show reduced transfection efficiency in vitro under serum-starved conditions, limiting mechanistic studies and cell engineering applications. Here, we present a new standard for in vitro transfection of mRNA-LNPs, including cell culture preparation, mRNA-LNP treatment in complete media, and mRNA expression level quantification. This protocol improves efficiency and reproducibility in in vitro screening and ensures consistency in the assessment of mRNA-LNPs.
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