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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-8446

Bodmer, D; Gloddek, B; Ryan, A F; Huverstuhl, J; Brors, D (2002). Inhibition of the c-Jun N-terminal kinase signaling pathway influences neurite outgrowth of spiral ganglion neurons in vitro. The Laryngoscope, 112(11):2057-2061.

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OBJECTIVES: Inhibitors of the c-Jun N-terminal kinase (JNK) signaling pathway have been demonstrated to protect hair cells of the auditory system and different types of neurons from various insults, and their use for future therapeutic applications has been proposed. In the study, we evaluated the effects of inhibition of the JNK pathway on process outgrowth from spiral ganglion neurons. METHODS: Spiral ganglion explants from rats (postnatal days 3-5) that were cultured on laminin were treated with neurotrophin-3 and/or the JNK signaling pathway inhibitor CEP-11004. Both neurite length and number of the explants were evaluated and statistically analyzed by analysis of variance. RESULTS: Inhibition of the JNK signaling pathway reduced process outgrowth from spiral ganglion explants. The reduction, both in length and number of neurites, was reversed by the application of neurotrophin-3. CONCLUSIONS: The results indicate that an intact JNK signaling pathway is important for process outgrowth of spiral ganglion neurons. However, neurotrophin-3 stimulates process extension by a JNK independent pathway. Our results demonstrate that inhibition of the JNK pathway can have adverse effects on the extension of spiral ganglion neurons, but that the negative effects can be ameliorated by appropriate treatment.


18 citations in Web of Science®
20 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Otorhinolaryngology
Dewey Decimal Classification:610 Medicine & health
Deposited On:26 Mar 2009 13:11
Last Modified:05 Apr 2016 12:43
Publisher:Lippincott Wiliams & Wilkins
Publisher DOI:10.1097/00005537-200211000-00028
PubMed ID:12439181

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