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Recent Advances in Lipid Nanoparticles for Delivery of mRNA

Journal

PHARMACEUTICS
Volume 14, Issue 12, Pages -

Publisher

MDPI
DOI: 10.3390/pharmaceutics14122682

Keywords

messenger RNA; non-viral vectors; viral vectors; lipid nanoparticles

Funding

  1. Tianjin University of Traditional Chinese Medicine Startup Funding
  2. Tianjin University of Traditional Chinese Medicine
  3. CAMS Innovation Fund for Medical Sciences (CIFMS) [2021-I2M-1-026]

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mRNA technology utilizes messenger RNA transcribed from DNA as a template to treat diseases. Lipid nanoparticles (LNPs) show potential in clinical translation as non-viral delivery tools and are particularly important for delivering nucleic acids into cells in current mRNA regimens. The latest research progress of LNPs is mainly focused on the treatment of other diseases such as oncological, cardiovascular, and infectious diseases.
Messenger RNA (mRNA), which is composed of ribonucleotides that carry genetic information and direct protein synthesis, is transcribed from a strand of DNA as a template. On this basis, mRNA technology can take advantage of the body's own translation system to express proteins with multiple functions for the treatment of various diseases. Due to the advancement of mRNA synthesis and purification, modification and sequence optimization technologies, and the emerging lipid nanomaterials and other delivery systems, mRNA therapeutic regimens are becoming clinically feasible and exhibit significant reliability in mRNA stability, translation efficiency, and controlled immunogenicity. Lipid nanoparticles (LNPs), currently the leading non-viral delivery vehicles, have made many exciting advances in clinical translation as part of the COVID-19 vaccines and therefore have the potential to accelerate the clinical translation of gene drugs. Additionally, due to their small size, biocompatibility, and biodegradability, LNPs can effectively deliver nucleic acids into cells, which is particularly important for the current mRNA regimens. Therefore, the cutting-edge LNP@mRNA regimens hold great promise for cancer vaccines, infectious disease prevention, protein replacement therapy, gene editing, and rare disease treatment. To shed more lights on LNP@mRNA, this paper mainly discusses the rational of choosing LNPs as the non-viral vectors to deliver mRNA, the general rules for mRNA optimization and LNP preparation, and the various parameters affecting the delivery efficiency of LNP@mRNA, and finally summarizes the current research status as well as the current challenges. The latest research progress of LNPs in the treatment of other diseases such as oncological, cardiovascular, and infectious diseases is also given. Finally, the future applications and perspectives for LNP@mRNA are generally introduced.

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