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Expression of peripherin in the pig spiral ganglion: aspects of nerve injury and regeneration
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Otolaryngology and Head and Neck Surgery.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Plastic Surgery.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Surgical Sciences, Otolaryngology and Head and Neck Surgery.
2009 (English)In: Acta Oto-Laryngologica, ISSN 0001-6489, E-ISSN 1651-2251, Vol. 129, no 6, 608-14 p.Article in journal (Refereed) Published
Abstract [en]

CONCLUSION: Peripherin protein may be important not only for developing neurons but also for the maintenance and regeneration of axonal processes in the mature cochlea. More knowledge about its expression and function could improve our understanding with reference to axonal regrowth and nerve restoration in the damaged cochlea. OBJECTIVE: To investigate the existence of peripherin protein in adult pig spiral ganglion and cultured spiral ganglion neurons of the guinea pig. MATERIALS AND METHODS: Immunohistochemistry with anti-peripherin antibodies was performed on sections of adult pig spiral ganglion and guinea pig spiral ganglion cell (SGC) culture. RESULTS: In pig auditory neurons, both type I and type II SGCs showed expression of the protein peripherin. These cells were not preferentially located near the intraganglionic spiral bundle (IGSB). The IGSB consisted of thin calibre fibres showing intense peripherin and thicker fibres that were TUJ-1 positive. Only a few fibres within the IGSB co-expressed both peripherin and TUJ-1. Cultured guinea pig neurons displayed a rich expression of peripherin, including the nuclei. This protein was expressed in regions such as the perikaryon and axons but there was also a segmental expression of peripherin in some regions. Peripherin was more expressed in areas of axon branching and in the centre of the active growth cones and lammelipodia.

Place, publisher, year, edition, pages
2009. Vol. 129, no 6, 608-14 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:uu:diva-113342DOI: 10.1080/00016480802369294ISI: 000266080800004PubMedID: 18763177OAI: oai:DiVA.org:uu-113342DiVA: diva2:290520
Available from: 2010-01-27 Created: 2010-01-27 Last updated: 2017-12-12Bibliographically approved

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Liu, WeiBoström, MarjaRask-Andersen, Helge

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