Format

Send to

Choose Destination
Mol Neurobiol. 2016 Jul;53(5):3235-3248. doi: 10.1007/s12035-015-9223-1. Epub 2015 Jun 7.

A Single Injection of Recombinant Adeno-Associated Virus into the Lumbar Cistern Delivers Transgene Expression Throughout the Whole Spinal Cord.

Guo Y1,2, Wang D3, Qiao T2, Yang C2, Su Q3,4, Gao G5,6, Xu Z7,8,9.

Author information

1
Department of Neurology, The Second Hospital of Hebei Medical University, 215 Heping West Road, Shijiazhuang, Hebei, 050000, China.
2
Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School Worcester, Worcester, MA, 01605, USA.
3
Gene Therapy Center, University of Massachusetts Medical School Worcester, Worcester, MA, 01605, USA.
4
Viral Vector Core, University of Massachusetts Medical School Worcester, Worcester, MA, 01605, USA.
5
Gene Therapy Center, University of Massachusetts Medical School Worcester, Worcester, MA, 01605, USA. guangping.gao@umassmed.edu.
6
Microbiology and Physiology Systems, University of Massachusetts Medical School Worcester, Worcester, MA, 01605, USA. guangping.gao@umassmed.edu.
7
Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School Worcester, Worcester, MA, 01605, USA. zuoshang.xu@umassmed.edu.
8
Department of Cell Biology, University of Massachusetts Medical School Worcester, Worcester, MA, 01605, USA. zuoshang.xu@umassmed.edu.
9
Neuroscience Program, University of Massachusetts Medical School Worcester, Worcester, MA, 01605, USA. zuoshang.xu@umassmed.edu.

Abstract

The lack of methods to deliver transgene expression in spinal cord has hampered investigation of gene function and therapeutic targets for spinal cord diseases. Here, we report that a single intrathecal injection of recombinant adeno-associated virus rhesus-10 (rAAVrh10) into the lumbar cistern led to transgene expression in 60 to 90 % of the cells in the spinal cord. The transgene was expressed in all cell types, including neurons, glia, ependymal cells, and endothelial cells. Additionally, the transgene was expressed in some brain areas up to the frontal cortex and the olfactory bulb. The rAAV was distributed predominantly in the spinal cord, where its genome copy was over ten times that of the peripheral organs. Compared with intravenous injection, another method for rAAV delivery to the broad central nervous system (CNS), the intrathecal injection reduced the dosage of rAAV required to achieve similar or higher levels of transgene expression in the CNS by ~100-fold. Finally, the transduced areas were co-localized with the perivascular spaces of Virchow-Robin, from which the rAAV spreads further into the CNS parenchyma, thus suggesting that rAAV penetrated the CNS parenchyma through this pathway. Taken together, we have defined a fast and efficient method to deliver widespread transgene expression in mature spinal cord in mice. This method can be applied to stably overexpress or silence gene expression in the spinal cord to investigate gene functions in mammalian CNS. Additionally, this method can be applied to validate therapeutic targets for spinal cord diseases.

KEYWORDS:

AAV; Amyotrophic lateral sclerosis; Gene therapy; Pain; SMA; rAAV

PMID:
26050084
PMCID:
PMC4671832
DOI:
10.1007/s12035-015-9223-1
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for Springer Icon for PubMed Central
Loading ...
Support Center