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NGF stimulates extensive neurite outgrowth from implanted dorsal root ganglion neurons following transplantation into the adult rat inner ear
Karolinska Institute, Stockholm, Sweden.
Karolinska Institute, Stockholm, Sweden.
Karolinska Institute/Karolinska University Hospital, Stockholm, Sweden .
2005 (English)In: Neurobiology of Disease, ISSN 0969-9961, E-ISSN 1095-953X, Vol. 18, no 1, 184-192 p.Article in journal (Refereed) Published
Abstract [en]

Neuronal tissue transplantation is a potential way to replace degenerated spiral ganglion neurons (SGNs) since these cells cannot regenerate in adult mammals. To investigate whether nerve growth factor (NGF) can stimulate neurite outgrowth from implanted neurons, mouse embryonic dorsal root ganglion (DRG) cells expressing enhanced green fluorescent protein (EGFP) were transplanted into the scala tympani of adult rats with a supplement of NGF or artificial perilymph. DRG neurons were observed in the cochlea for up to 6 weeks postoperatively. A significant difference was identified in the number of DRG neurons between the NGF and non-NGF groups. In the NGF group, extensive neurite projections from DRGs were found penetrating the osseous modiolus towards the spiral ganglion. These results suggest the possibility that embryonic neuronal implants may become integrated within the adult auditory nervous system. In combination with a cochlear prosthesis, a neuronal implantation strategy may provide a possibility for further treatment of profoundly deaf patients.

Place, publisher, year, edition, pages
Elsevier, 2005. Vol. 18, no 1, 184-192 p.
Keyword [en]
Cochlear implant, Dorsal root ganglion, Hair cell, Hearing loss, Nerve growth factor, Neurite, Spiral ganglion, Transplantation
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-101043DOI: 10.1016/j.nbd.2004.09.010PubMedID: 15649709OAI: oai:DiVA.org:liu-101043DiVA: diva2:665110
Available from: 2013-11-19 Created: 2013-11-18 Last updated: 2017-12-06Bibliographically approved

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Olivius, Petri

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CiteExportLink to record
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  • apa
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  • modern-language-association-8th-edition
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  • Other style
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
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  • nn-NB
  • sv-SE
  • Other locale
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Output format
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