Specific pathophysiological functions of JNK isoforms in the brain

Stephan Brecht, Rainer Kirchhof, Ansgar Chromik, Mette Willesen, Thomas Nicolaus, Gennadij Raivich, Jan Wessig, Vicki Waetzig, Mario Goetz, Malte Claussen, Damien D Pearse, Chia Yi Kuan, Elisabetha Vaudano, Axel Behrens, Erwin Wagner, Richard A. Flavell, Roger J. Davis, Thomas Herdegen

Research output: Contribution to journalArticle

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Abstract

We have investigated the effect of JNK1 ko, JNK2 ko, JNK3 ko, JNK2+3 ko and c-JunAA mutation on neuronal survival in adult transgenic mice following ischemia, 6-hydroxydopamine induced neurotoxicity, axon transection and kainic acid induced excitotoxicity. Deletion of JNK isoforms indicated the compartment-specific expression of JNK isoforms with 46-kDa JNK1 as the main phosphorylated JNK isoform. Permanent occlusion of the MCA significantly enlarged the infarct area in JNK1 ko, which showed an increased expression of JNK3 in the penumbra. Survival of dopaminergic neurons in the substantia nigra compacta (SNC) following intrastriatal injection of 6-hydroxydopamine was transiently improved in JNK3 ko and c-JunAA mice after 7 days, but not 60 days. Following transection of the medial forebrain bundle, however, JNK3 ko conferred persisting neuroprotection of axotomised SNC neurons. None of the JNK ko and c-JunAA mutation affected the survival of facial motoneurons following peripheral axotomy when investigated after 90 days. Finally, we determined the impact of JNK ko on the survival of animals and the degeneration of hippocampal neurons following kainic acid. JNK3 ko mice were substantially resistant against and survived kainic acid-induced seizures. JNK3 ko and JNK1 ko showed a nonsignificant tendency for decreased or increased death of hippocampal neurons, respectively. Surprisingly, the deletion of a single JNK isoform did not attenuate the immunocytochemical signal of phosphorylated c-Jun irrespective on the experimental set-up. This comprehensive study provides novel insights into the context-dependent physiological and pathological functions of JNK isoforms.

Original languageEnglish
Pages (from-to)363-377
Number of pages15
JournalEuropean Journal of Neuroscience
Volume21
Issue number2
DOIs
StatePublished - Jan 1 2005

Fingerprint

Protein Isoforms
Kainic Acid
Brain
Oxidopamine
Medial Forebrain Bundle
Neurons
Axotomy
Nerve Degeneration
Mutation
Dopaminergic Neurons
Motor Neurons
Transgenic Mice
Axons
Seizures
Ischemia
Injections
Pars Compacta

Keywords

  • Axotomy
  • Cerebral ischemia
  • Excitotoxicity
  • Neurodegeneration
  • Substantia nigra

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Brecht, S., Kirchhof, R., Chromik, A., Willesen, M., Nicolaus, T., Raivich, G., ... Herdegen, T. (2005). Specific pathophysiological functions of JNK isoforms in the brain. European Journal of Neuroscience, 21(2), 363-377. https://doi.org/10.1111/j.1460-9568.2005.03857.x

Specific pathophysiological functions of JNK isoforms in the brain. / Brecht, Stephan; Kirchhof, Rainer; Chromik, Ansgar; Willesen, Mette; Nicolaus, Thomas; Raivich, Gennadij; Wessig, Jan; Waetzig, Vicki; Goetz, Mario; Claussen, Malte; Pearse, Damien D; Kuan, Chia Yi; Vaudano, Elisabetha; Behrens, Axel; Wagner, Erwin; Flavell, Richard A.; Davis, Roger J.; Herdegen, Thomas.

In: European Journal of Neuroscience, Vol. 21, No. 2, 01.01.2005, p. 363-377.

Research output: Contribution to journalArticle

Brecht, S, Kirchhof, R, Chromik, A, Willesen, M, Nicolaus, T, Raivich, G, Wessig, J, Waetzig, V, Goetz, M, Claussen, M, Pearse, DD, Kuan, CY, Vaudano, E, Behrens, A, Wagner, E, Flavell, RA, Davis, RJ & Herdegen, T 2005, 'Specific pathophysiological functions of JNK isoforms in the brain', European Journal of Neuroscience, vol. 21, no. 2, pp. 363-377. https://doi.org/10.1111/j.1460-9568.2005.03857.x
Brecht S, Kirchhof R, Chromik A, Willesen M, Nicolaus T, Raivich G et al. Specific pathophysiological functions of JNK isoforms in the brain. European Journal of Neuroscience. 2005 Jan 1;21(2):363-377. https://doi.org/10.1111/j.1460-9568.2005.03857.x
Brecht, Stephan ; Kirchhof, Rainer ; Chromik, Ansgar ; Willesen, Mette ; Nicolaus, Thomas ; Raivich, Gennadij ; Wessig, Jan ; Waetzig, Vicki ; Goetz, Mario ; Claussen, Malte ; Pearse, Damien D ; Kuan, Chia Yi ; Vaudano, Elisabetha ; Behrens, Axel ; Wagner, Erwin ; Flavell, Richard A. ; Davis, Roger J. ; Herdegen, Thomas. / Specific pathophysiological functions of JNK isoforms in the brain. In: European Journal of Neuroscience. 2005 ; Vol. 21, No. 2. pp. 363-377.
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