|
1
|
Ayers JI, Fromholt S, Sinyavskaya O, Siemienski Z, Rosario AM, Li A, Crosby KW, Cruz PE, DiNunno NM, Janus C, Ceballos-Diaz C, Borchelt DR, Golde TE, Chakrabarty P, Levites Y. Widespread and efficient transduction of spinal cord and brain following neonatal AAV injection and potential disease modifying effect in ALS mice. Mol Ther 2014; 23:53-62. [PMID: 25228069 DOI: 10.1038/mt.2014.180] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Accepted: 09/09/2014] [Indexed: 01/01/2023] Open
Abstract
The architecture of the spinal cord makes efficient delivery of recombinant adeno-associated virus (rAAV) vectors throughout the neuraxis challenging. We describe a paradigm in which small amounts of virus delivered intraspinally to newborn mice result in robust rAAV-mediated transgene expression in the spinal cord. We compared the efficacy of rAAV2/1, 2/5, 2/8, and 2/9 encoding EGFP delivered to the hindlimb muscle (IM), cisterna magna (ICM), or lumbar spinal cord (IS) of neonatal pups. IS injection of all four capsids resulted in robust transduction of the spinal cord with rAAV2/5, 2/8, and 2/9 vectors appearing to be transported to brain. ICM injection resulted in widespread expression of EGFP in the brain, and upper spinal cord. IM injection resulted in robust muscle expression, with only rAAV2/8 and 2/9 transducing spinal motor and sensory neurons. As proof of concept, we use the IS paradigm to express murine Interleukin (IL)-10 in the spinal cord of the SOD1-G93A transgenic mouse model of amyotrophic lateral sclerosis. We show that expression of IL-10 in the spinal axis of SOD1-G93A mice altered the immune milieu and significantly prolonged survival. These data establish an efficient paradigm for somatic transgene delivery of therapeutic biologics to the spinal cord of mice.
Collapse
Affiliation(s)
- Jacob I Ayers
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease and McKnight Brain Institute, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Susan Fromholt
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease and McKnight Brain Institute, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Olga Sinyavskaya
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease and McKnight Brain Institute, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Zoe Siemienski
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease and McKnight Brain Institute, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Awilda M Rosario
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease and McKnight Brain Institute, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Andrew Li
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease and McKnight Brain Institute, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Keith W Crosby
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease and McKnight Brain Institute, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Pedro E Cruz
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease and McKnight Brain Institute, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Nadia M DiNunno
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease and McKnight Brain Institute, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Christopher Janus
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease and McKnight Brain Institute, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Carolina Ceballos-Diaz
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease and McKnight Brain Institute, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - David R Borchelt
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease and McKnight Brain Institute, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Todd E Golde
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease and McKnight Brain Institute, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Paramita Chakrabarty
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease and McKnight Brain Institute, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Yona Levites
- Department of Neuroscience, Center for Translational Research in Neurodegenerative Disease and McKnight Brain Institute, College of Medicine, University of Florida, Gainesville, Florida, USA
| |
Collapse
|