Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5739088 | Progress in Neurobiology | 2017 | 22 Pages |
Abstract
Serotonin (5-hydroxytrympamine or 5-HT) is one of the phylogenetically oldest neurotransmitters, and the serotonergic system is among the earliest developed neuronal systems. Serotonin is critically involved in regulating multiple physiological functions, acting via a heterogenic receptor family that includes G protein-coupled receptors and ligand-gated ion channels. Although serotonergic neurons comprise a widely distributed and complex network that targets nearly every brain structure, serotonin-mediated signalling is under strict temporal and spatial control. Imbalance in serotonergic signalling is implicated in many pathophysiological conditions, including schizophrenia, Alzheimer's disease, depression, and anxiety. In addition to its well-established role as a neurotransmitter, serotonin is involved in many aspects of neural development, including neurite outgrowth, somatic morphology regulation, growth cone motility, synaptogenesis, and control of dendritic spine shape and density. The morphogenic effects of serotonin are developmentally regulated, and serotonin availability during sensitive developmental stages can modulate the formation and functions of behaviourally relevant neuronal networks in adulthood. Here we provide an overview of the molecular mechanisms responsible for the morphogenic effects of serotonin elicited by its different receptors in neurons. We also discuss the role of serotonin receptor-mediated morphogenic signalling in the development and maintenance of pathophysiological conditions.
Keywords
inositol (1,4,5)-triphosphatecdk5IP35-HTTEpacASK1CaMKIIAMPAR5-hydroxytryptamineERKCDC42Jun N-terminal kinaseGRK5Jnk5-hydroxytryptamine transporter5-HTJab1BDNFCa2+/calmodulin-dependent protein kinase IIcAMPCyclic adenosine monophosphateadenylyl cyclaseAktautism spectrum disordersAlzheimer’s diseaseCAMcyclin-dependent kinase 5Brain-derived neurotrophic factorFynCell adhesion moleculeASDExchange protein directly activated by cAMPcAMP response element-binding proteinprotein kinase Bextracellular-regulated kinaseapoptosis signal-regulating kinase 1GABA
Related Topics
Life Sciences
Neuroscience
Neuroscience (General)
Authors
Alexander Wirth, Katrin Holst, Evgeni Ponimaskin,