Article (Scientific journals)
Lentiviral-mediated transfer of CNTF to schwann cells within reconstructed peripheral nerve grafts enhances adult retinal ganglion cell survival and axonal regeneration.
Hu, Ying; Leaver, Simone G; Plant, Giles W et al.
2005In Molecular Therapy, 11 (6), p. 906-15
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Keywords :
Ciliary Neurotrophic Factor; RNA, Messenger; Animals; Axons/physiology; Ciliary Neurotrophic Factor/analysis/genetics/metabolism; Genetic Vectors/genetics; Lentivirus/genetics; Myelin Sheath/metabolism; Peripheral Nerves/cytology/transplantation; RNA, Messenger/analysis/metabolism; Rats; Rats, Sprague-Dawley; Regeneration; Retinal Ganglion Cells/cytology/physiology; Schwann Cells/chemistry/metabolism/transplantation; Tissue Engineering/methods; Transduction, Genetic
Abstract :
[en] We recently described a method for reconstituting peripheral nerve (PN) sheaths using adult Schwann cells (SCs). Reconstructed PN tissue grafted onto the cut optic nerve supports the regeneration of injured adult rat retinal ganglion cell (RGC) axons. To determine whether genetic manipulation of such grafts can further enhance regeneration, adult SCs were transduced with lentiviral vectors encoding either ciliary neurotrophic factor (LV-CNTF) or green fluorescent protein (LV-GFP). SCs expressed transgenes for at least 4 weeks after transplantation. There were high levels of CNTF mRNA and CNTF protein in PN grafts containing LV-CNTF-transduced SCs. Mean RGC survival was significantly increased with these grafts (11,863/retina) compared with LV-GFP controls (7064/retina). LV-CNTF-transduced SCs enhanced axonal regeneration to an even greater extent (3097 vs 393 RGCs/retina in LV-GFP controls). Many regenerated axons were myelinated. The use of genetically modified, reconstituted PN grafts to bridge tissue defects may provide new therapeutic strategies for the treatment of both CNS and PNS injuries.
Disciplines :
Neurology
Author, co-author :
Hu, Ying;  School of Anatomy and Human Biology, Western Australian Institute for Medical Research, UWA Centre for Medical Research, Perth, Australia.
Leaver, Simone G
Plant, Giles W
Hendriks, William T J
NICLOU, Simone P. ;  Netherlands Institute for Brain Research, 1105 AZ Amsterdam, The Netherlands
Verhaagen, Joost
Harvey, Alan R
Cui, Qi
External co-authors :
yes
Language :
English
Title :
Lentiviral-mediated transfer of CNTF to schwann cells within reconstructed peripheral nerve grafts enhances adult retinal ganglion cell survival and axonal regeneration.
Publication date :
June 2005
Journal title :
Molecular Therapy
ISSN :
1525-0016
eISSN :
1525-0024
Publisher :
Nature Publishing Group, United Kingdom
Volume :
11
Issue :
6
Pages :
906-15
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBilu :
since 16 February 2024

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