Cited by 251RNA Interference and Gene DeliveryNanoparticle-Based Drug DeliveryExtracellular vesicles in disease

Boosting intracellular delivery of lipid nanoparticle-encapsulated mRNA

Open access
Patel, Siddharth, Ashwanikumar, N., Robinson, Emily, DuRoss, Allison, Sun, Conroy, Murphy-Benenato, Kerry E., Mihai, Cosmin, Almarsson, Örn +1 more·2017·Nano Letters

Abstract

Intracellular delivery of mRNA holds great potential for vaccine1-3 and therapeutic4 discovery and development. Despite increasing recognition of the utility of lipid-based nanoparticles (LNPs) for intracellular delivery of mRNA, particle engineering is hindered by insufficient understanding of endosomal escape, which is believed to be a main limiter of cytosolic availability and activity of the nucleic acid inside the cell. Using a series of CRISPR-based genetic perturbations of the lysosomal pathway, we have identified that late endosome/lysosome (LE/Ly) formation is essential for functional delivery of exogenously presented mRNA. Lysosomes provide a spatiotemporal hub to orchestrate mTOR signaling and are known to control cell proliferation, nutrient sensing, ribosomal biogenesis, and mRNA translation. Through modulation of the mTOR pathway we were able to enhance or inhibit LNP-mediated mRNA delivery. To further boost intracellular delivery of mRNA, we screened 212 bioactive lipid-like molecules that are either enriched in vesicular compartments or modulate cell signaling. Surprisingly, we have discovered that leukotriene-antagonists, clinically approved for treatment of asthma and other lung diseases, enhance intracellular mRNA delivery in vitro (over 3-fold, p < 0.005) and in vivo (over 2-fold, p < 0.005). Understanding LNP-mediated intracellular delivery will inspire the next generation of RNA therapeutics that have high potency and limited toxicity.

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  • Recruitment of the mechanistic target of rapamycin complex 1 to the lysosomal membrane is key to trigger translation of delivered mRNA.

    “By contrast, the recruitment of the mechanistic target of rapamycin complex 1 to the lysosomal membrane was key to trigger the translation of delivered mRNA [122].”

    From Three decades of messenger RNA vaccine development (2019) · cites this paper as [122]

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  1. [22]Yin H Kanasty RL Eltoukhy AA Vegas AJ Dorkin JR Anderson DG Nat Rev Genet 2014 15 8 541 555 25022906
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Authors
Patel, S., Ashwanikumar, N., Robinson, E., DuRoss, A., Sun, C., Murphy-Benenato, K. E., Mihai, C., Almarsson, Ö., & Sahay, G.
Affiliations
  • Oregon State University (US)
  • Moderna Therapeutics (United States) (US)
Corresponding author
Sahay, Gaurav
Venue
Nano Letters
Published
2017-08-24
Volume
17
Issue
9
Pages
5711-5718
ISSN
  • 1530-6984 (ISSN-L)
  • 1530-6992
OpenAlex
W2748490245
Cited by
251
References
56
Citations by year
2026: 27 · 2025: 29 · 2024: 30 · 2023: 27 · 2022: 29 · 2021: 38 · 2020: 30 · 2019: 22 · 2018: 19
FWCI
7.93
Type
journal article
Language
en
Open access
Locations
  • Nano Letters (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute of Biomedical Imaging and Bioengineering (1R15EB021581-01)
  • Cystic Fibrosis Foundation
  • Moderna Therapeutics
  • College of Pharmacy, Ohio State University
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
Keywords
lipid nanoparticles, mRNA delivery, endosomal escape, lysosome formation, late endosomes, mTOR signaling, leukotriene antagonists, RNA therapeutics, vaccine delivery
MeSH terms
Animals, Cell Line, Female, HeLa Cells, Humans, Lipids, Lysosomes, Mice, Inbred BALB C, Endosomes, RNA, Messenger, Signal Transduction, Gene Transfer Techniques, Lipid Metabolism, Nanoparticles, Hep G2 Cells, TOR Serine-Threonine Kinases

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