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Neuropeptide messenger plasticity in the CNS neurons following axotomy

  • Proceedings of the Satellite of the 14th ISN Meeting and the First International Workshop entitled The Neuronal Phenotype Molecular Biology, Cell Specification, and Therapeutic Frontiers held in Lozari, Corsica, France, August 19–20, 1993
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Abstract

Neuronal peptides exert neurohormonal and neurotransmitter (neuromodulator) functions in the central nervous system (CNS). Besides these functions, a group of neuropeptides may have a capacity to create cell proliferation, growth, and survival. Axotomy induces transient (1–21 d) upregulation of synthesis and gene expression of neuropeptides, such as galanin, corticotropin releasing factor, dynorphin, calcitonin gene-related peptide, vasoactive intestinal polypeptide, cholecystokinin, angiotensin II, and neuropeptide Y. These neuropeptides are colocalized with “classic” neurotransmitters (acetylcholine, aspartate, glutamate) or neurohormones (vasopressin, oxytocin) that are downregulated by axotomy in the same neuronal cells. It is more likely that neuronal cells, in response to axotomy, increase expression of neuropeptides that promote their survival and regeneration, and may downregulate substances related to their transmitter or secretory activities.

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Palkovits, M. Neuropeptide messenger plasticity in the CNS neurons following axotomy. Mol Neurobiol 10, 91–103 (1995). https://doi.org/10.1007/BF02740669

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  • DOI: https://doi.org/10.1007/BF02740669

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