ArticleMolecular therapy : the journal of the American Society of Gene Therapy2018
Transvascular Delivery of Hydrophobically Modified siRNAs: Gene Silencing in the Rat Brain upon Disruption of the Blood-Brain Barrier.
Article in Molecular therapy : the journal of the American Society of Gene Therapy, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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28 citing papers in PubMed, 80 citations in OpenAlex.
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- Phosphatidylcholine-derived carriers facilitate brain tumor delivery and enhance glioblastoma therapy.Journal of controlled release : official journal of the Controlled Release Society · 2025Article
- Metabolic Stability and Targeted Delivery of Oligonucleotides: Advancing RNA Therapeutics Beyond The Liver.Journal of medicinal chemistry · 2025Review
- A combination of systemic mannitol and mannitol modified polyester nanoparticles for caveolae-mediated gene delivery to the brain.Molecular therapy. Nucleic acids · 2025Article
- Blood-Brain Barrier Disruption for the Treatment of Primary Brain Tumors: Advances in the Past Half-Decade.Current oncology reports · 2024Review
- Self-delivering, chemically modified CRISPR RNAs for AAV co-delivery and genome editing in vivo.Nucleic acids research · 2024Article
- Nucleic acid drug vectors for diagnosis and treatment of brain diseases.Signal transduction and targeted therapy · 2023Review
- RNA interference-mediated silencing of DNA methyltransferase 1 attenuates neuropathic pain by accelerating microglia M2 polarization.BMC neurology · 2022Article
- Brain Gene Silencing with Cationic Amino-Capped Poly(ethylene glycol) Polyplexes.Biomedicines · 2022Article
- Hyperosmolar blood-brain barrier opening using intra-arterial injection of hyperosmotic mannitol in mice under real-time MRI guidance.Nature protocols · 2022Review
- Intrathecal Delivery of Therapeutic Oligonucleotides for Potent Modulation of Gene Expression in the Central Nervous System.Methods in molecular biology (Clifton, N.J.) · 2022Article
- Clinical advances of RNA therapeutics for treatment of neurological and neuromuscular diseases.RNA biology · 2022Article
- Evolution of complexity in non-viral oligonucleotide delivery systems: from gymnotic delivery through bioconjugates to biomimetic nanoparticles.RNA biology · 2022Review
- Comparative route of administration studies using therapeutic siRNAs show widespread gene modulation in Dorset sheep.JCI insight · 2021Article
- Multi-disciplinary Approach for Drug and Gene Delivery Systems to the Brain.AAPS PharmSciTech · 2021Review
- Cholesterol-functionalized DNA/RNA heteroduplexes cross the blood-brain barrier and knock down genes in the rodent CNS.Nature biotechnology · 2021Article
- Modulating the Blood-Brain Barrier: A Comprehensive Review.Pharmaceutics · 2021Review
- Potentially Detrimental Effects of Hyperosmolality in Patients Treated for Traumatic Brain Injury.Journal of clinical medicine · 2021Review
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14 authors at 3 institutions in 1 country.
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Abstract
Effective transvascular delivery of therapeutic oligonucleotides to the brain presents a major hurdle to the development of gene silencing technologies for treatment of genetically defined neurological disorders. Distribution to the brain after systemic administrations is hampered by the low permeability of the blood-brain barrier (BBB) and the rapid clearance kinetics of these drugs from the blood. Here we show that transient osmotic disruption of the BBB enables transvascular delivery of hydrophobically modified small interfering RNA (hsiRNA) to the rat brain. Intracarotid administration of 25% mannitol and hsiRNA conjugated to phosphocholine-docosahexanoic acid (PC-DHA) resulted in broad ipsilateral distribution of PC-DHA-hsiRNAs in the brain. PC-DHA conjugation enables hsiRNA retention in the parenchyma proximal to the brain vasculature and enabled active internalization by neurons and astrocytes. Moreover, transvascular delivery of PC-DHA-hsiRNAs effected Htt mRNA silencing in the striatum (55%), hippocampus (51%), somatosensory cortex (52%), motor cortex (37%), and thalamus (33%) 1 week after administration. Aside from mild gliosis induced by osmotic disruption of the BBB, transvascular delivery of PC-DHA-hsiRNAs was not associated with neurotoxicity. Together, these findings provide proof-of-concept that temporary disruption of the BBB is an effective strategy for the delivery of therapeutic oligonucleotides to the brain.
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