Cited by 83Virus-based gene therapy researchRNA Interference and Gene DeliveryNeurogenetic and Muscular Disorders Research

Comparison of high-dose intracisterna magna and lumbar puncture intrathecal delivery of AAV9 in mice to treat neuropathies

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Bailey, Rachel M., Rozenberg, Alejandra, Gray, Steven J.·2020·Brain Research

Abstract

Gene therapy clinical trials for neurological disorders are ongoing using intrathecal injection of adeno-associated virus (AAV) vector directly into the cerebral spinal fluid. Preliminary findings from these trials and results from extensive animal studies provides compelling data supporting the safety and benefit of intrathecal delivery of AAV vectors for inherited neurological disorders. Intrathecal delivery can be achieved by a lumbar puncture (LP) or intracisterna magna (ICM) injection, although ICM is not commonly used in clinical practice due to increased procedural risk. Few studies directly compared these delivery methods and there are limited reports on transduction of the PNS. To further test the utility of ICM or LP delivery for neuropathies, we performed a head to head comparison of AAV serotype 9 (AAV9) vectors expressing GFP injected into the cisterna magna or lumbar subarachnoid space in mice. We report that an intrathecal gene delivery of AAV9 in mice leads to stable transduction of neurons and glia in the brain and spinal cord and has a widespread distribution that includes components of the PNS. Vector expression was notably higher in select brain and PNS regions following ICM injection, while higher amounts of vector was found in the lower spinal cord and peripheral organs following LP injection. These findings support that intrathecal AAV9 delivery is a translationally relevant delivery method for inherited neuropathies.

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Authors
Bailey, R. M., Rozenberg, A., & Gray, S. J.
Affiliations
University of North Carolina at Chapel Hill (US)
Corresponding author
  • Bailey, Rachel M.
  • Gray, Steven J.
Venue
Brain Research
Publisher
Elsevier BV
Published
2020-07
Volume
1739
Pages
146832
ISSN
0006-8993 (ISSN-L)
OpenAlex
W3015315613
Cited by
83
References
32
Citations by year
2026: 12 · 2025: 16 · 2024: 11 · 2023: 15 · 2022: 10 · 2021: 14 · 2020: 4 · 2013: 1
FWCI
1.53
Type
journal article
Language
en
Open access
Locations
  • Brain Research (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institutes of Health
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Virus-based gene therapy research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
  • Health Sciences › Medicine › Genetics › Neurogenetic and Muscular Disorders Research
Keywords
intrathecal gene delivery, lumbar puncture, AAV9, adeno-associated virus vectors, neuropathy, spinal cord, vector distribution, hereditary neurological disorders, gene therapy
MeSH terms
Dependovirus, Animals, Brain, Cisterna Magna, Female, Genetic Vectors, Injections, Spinal, Lumbar Vertebrae, Mice, Inbred C57BL, Motor Neurons, Neuroglia, Spinal Cord, Spinal Puncture, Transduction, Genetic, Genetic Therapy, Gene Transfer Techniques, Mice

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