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Prog Neurobiol. 2006 Oct;80(2):84-97. Epub 2006 Oct 11.

The bright side of JNKs-Multitalented mediators in neuronal sprouting, brain development and nerve fiber regeneration.

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Institute of Pharmacology, University Hospital Schleswig-Holstein, Campus Kiel, Hospitalstrasse 4, 24105 Kiel, Germany.


The c-Jun N-terminal kinases (JNKs) are important regulators of physiological and pathological processes in the central and peripheral nervous system. In general, JNKs are considered as mediators of neuronal degeneration in response to stress and injury. However, recent data have provided substantial evidence that JNKs are also essential for physiological and regenerative signalling in neurons. This review summarizes the importance of JNKs for neurite formation and outgrowth, brain development, dendritic architecture and regeneration of nerve fibers after injury. We discuss putative mechanisms which control the bipartite actions of individual JNK isoforms for neuronal death and repair after nerve fiber injury with a particular focus on the role of the transcription factor c-Jun.

[Indexed for MEDLINE]

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