Cited by 141RNA Interference and Gene DeliveryNanoparticle-Based Drug DeliveryGenetic Neurodegenerative Diseases

Intrathecal delivery of frataxin mRNA encapsulated in lipid nanoparticles to dorsal root ganglia as a potential therapeutic for Friedreich’s ataxia

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Nabhan, Joseph F., Wood, Kristy M., Rao, Varada P., Morin, Jeffrey, Bhamidipaty, Surya, LaBranche, Timothy P., Gooch, Renea L., Bozal, Fazli +2 more·2016·Scientific Reports

Abstract

In Friedreich’s ataxia (FRDA) patients, diminished frataxin (FXN) in sensory neurons is thought to yield the predominant pathology associated with disease. In this study, we demonstrate successful usage of RNA transcript therapy (RTT) as an exogenous human FXN supplementation strategy in vitro and in vivo, specifically to dorsal root ganglia (DRG). Initially, 293 T cells were transfected with codon optimized human FXN mRNA, which was translated to yield FXN protein. Importantly, FXN was rapidly processed into the mature functional form of FXN (mFXN). Next, FXN mRNA, in the form of lipid nanoparticles (LNPs), was administered intravenously in adult mice. Examination of liver homogenates demonstrated efficient FXN LNP uptake in hepatocytes and revealed that the mitochondrial maturation machinery had efficiently processed all FXN protein to mFXN in ~24 h in vivo. Remarkably, greater than 50% mFXN protein derived from LNPs was detected seven days after intravenous administration of FXN LNPs, suggesting that the half-life of mFXN in vivo exceeds one week. Moreover, when FXN LNPs were delivered by intrathecal administration, we detected recombinant human FXN protein in DRG. These observations provide the first demonstration that RTT can be used for the delivery of therapeutic mRNA to DRG.

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  • mRNA-based protein replacement therapies have been applied to haematological diseases, central nervous system disorders, skin diseases and hearing loss in preclinical studies.

    “In addition, mRNA-based protein replacement therapies have been applied to haematological diseases (for example, haemophilia A232, haemophilia B91,104,233 and thrombotic thrombocytopaenic purpura234), central nervous system disorders67,152 (for example, Friedreich’s ataxia67), skin diseases235,236 (for example, elastin deficiency235) and hearing loss237 in preclinical”

    From Lipid nanoparticles for mRNA delivery (2021) · cites this paper as [67]

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Authors
Nabhan, J. F., Wood, K. M., Rao, V. P., Morin, J., Bhamidipaty, S., LaBranche, T. P., Gooch, R. L., Bozal, F., Bulawa, C. E., & Guild, B. C.
Affiliations
Pfizer (United States) (US)
Corresponding author
Nabhan, Joseph F.
Venue
Scientific Reports
Published
2016-02-17
Volume
6
Issue
1
Pages
20019-20019
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2280474488
Cited by
140
References
41
Citations by year
2026: 8 · 2025: 10 · 2024: 20 · 2023: 21 · 2022: 18 · 2021: 13 · 2020: 15 · 2019: 14 · 2018: 9 · 2017: 7 · 2016: 4 · 2012: 1
FWCI
5.89
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
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 › Neuroscience › Cellular and Molecular Neuroscience › Genetic Neurodegenerative Diseases
Keywords
Friedreich's ataxia, frataxin, lipid nanoparticles, intrathecal drug delivery, dorsal root ganglia, sensory neurons, codon optimization, mRNA delivery, mitochondrial maturation, hepatocyte uptake, protein half-life
MeSH terms
Frataxin, Animals, Disease Models, Animal, Female, Friedreich Ataxia, Ganglia, Spinal, Humans, Injections, Spinal, Lipids, Liver, Luminescent Measurements, RNA, Messenger, Transfection, Protein Biosynthesis, Signal Transduction, Gene Expression, Genes, Reporter, Iron-Binding Proteins, Mice, Nanoparticles, Molecular Imaging

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