Cited by 95RNA Interference and Gene DeliveryCRISPR and Genetic EngineeringVirus-based gene therapy research

Non-viral Delivery of Zinc Finger Nuclease mRNA Enables Highly Efficient In Vivo Genome Editing of Multiple Therapeutic Gene Targets

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Conway, Anthony, Mendel, Matthew, Kim, Kenneth, McGovern, Kyle, Boyko, Alisa, Zhang, Lei, Miller, Jeffrey C., DeKelver, Russell C. +8 more·2019·Molecular Therapy

Abstract

It has previously been shown that engineered zinc finger nucleases (ZFNs) can be packaged into adeno-associated viruses (AAVs) and delivered intravenously into mice, non-human primates, and most recently, humans to induce highly efficient therapeutic genome editing in the liver. Lipid nanoparticles (LNPs) are synthetic delivery vehicles that enable repeat administration and are not limited by the presence of preexisting neutralizing antibodies in patients. Here, we show that mRNA encoding ZFNs formulated into LNP can enable >90% knockout of gene expression in mice by targeting the TTR or PCSK9 gene, at mRNA doses 10-fold lower than has ever been reported. Additionally, co-delivering mRNA-LNP containing ZFNs targeted to intron 1 of the ALB locus with AAV packaged with a promoterless human IDS or FIX therapeutic transgene can result in high levels of targeted integration and subsequent therapeutically relevant levels of protein expression in mice. Finally, we show repeat administration of ZFN mRNA-LNP after a single AAV donor dose results in significantly increased levels of genome editing and transgene expression compared to a single dose. These results demonstrate LNP-mediated ZFN mRNA delivery can drive highly efficient levels of in vivo genome editing and can potentially offer a new treatment modality for a variety of diseases.

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Crossref · 10.1016/j.ymthe.2019.03.003

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  • Gene-editing components can be delivered by lipid nanoparticle-mRNA formulations to treat genetic diseases, including hereditary tyrosinaemia type I, hypercholesterolaemia, lipoprotein metabolism disorders and transthyretin amyloidosis, as demonstrated in preclinical studies.

    “Gene-editing components can be delivered by lipid nanoparticle–mRNA formulations to treat genetic diseases, including HTI92,238, hypercholesterolaemia81,96,105,239, lipoprotein metabolism disorders85 and transthyretin amyloidosis239,240, which has been demonstrated in preclinical studies.”

    From Lipid nanoparticles for mRNA delivery (2021) · cites this paper as [239]

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Authors
Conway, A., Mendel, M., Kim, K., McGovern, K., Boyko, A., Zhang, L., Miller, J. C., DeKelver, R. C., Paschon, D. E., Mui, B. L., Lin, P. J. C., Tam, Y. K., Barbosa, C., Redelmeier, T., Holmes, M. C., & Lee, G.
Affiliations
  • Sangamo BioSciences (United States) (US)
  • Acuitas Therapeutics (Canada) (CA)
Corresponding author
Conway, Anthony
Venue
Molecular Therapy
Publisher
Elsevier BV
Published
2019-04
Volume
27
Issue
4
Pages
866-877
ISSN
1525-0016 (ISSN-L)
OpenAlex
W2921219680
Cited by
95
References
55
Citations by year
2026: 9 · 2025: 11 · 2024: 13 · 2023: 10 · 2022: 16 · 2021: 18 · 2020: 17 · 2019: 1
FWCI
4.30
Type
journal article
Language
en
Open access
Locations
  • Molecular Therapy (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
Sangamo Therapeutics
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › CRISPR and Genetic Engineering
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Virus-based gene therapy research
Keywords
zinc finger nucleases, mRNA delivery, lipid nanoparticles, non-viral gene delivery, in vivo gene editing, adeno-associated virus vectors, PCSK9, alpha-1-antitrypsin, IDS, factor IX, liver-directed gene therapy, transgene expression
MeSH terms
Proprotein Convertase 9, Gene Editing, Zinc Finger Nucleases, Dependovirus, Animals, Cells, Cultured, Female, Genetic Vectors, Introns, Lipids, Male, Mice, Inbred C57BL, Prealbumin, RNA, Messenger, Drug Delivery Systems, Transgenes, Hepatocytes, Mice, Nanoparticles, Gene Knockout Techniques

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