ArticleCNS neuroscience & therapeutics2021
Activation of the glucocorticoid receptor rapidly triggers calcium-dependent serotonin release in vitro.
Article in CNS neuroscience & therapeutics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 8 citations in OpenAlex.
- Efficacy of acupuncture on glucocorticoid-induced insomnia: study protocol for a randomized controlled trial assessed by polysomnographic parameters and 5-HT.Frontiers in neurology · 2026Article
- Aerobic exercise attenuates high-fat diet-induced glycometabolism impairments in skeletal muscle of rat: role of EGR-1/PTP1B signaling pathway.Nutrition & metabolism · 2024Article
- Perioperative enriched environment attenuates postoperative cognitive dysfunction by upregulating microglia TREM2 via PI3K/Akt pathway in mouse model of ischemic stroke.Frontiers in neuroscience · 2024Article
- Alcohol dependence and withdrawal increase sensitivity of central amygdalar GABAergic synapses to the glucocorticoid receptor antagonist mifepristone in male rats.Neurobiology of disease · 2022Article
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
aimsGlucocorticoids rapidly provoke serotonin (5-HT) release in vivo. We aimed to investigate molecular mechanisms of glucocorticoid receptor (GR)-triggered 5-HT release.
methodsEmploying 1C11 cells to model 5-HT neurotransmission, immunofluorescence and Pearson's Correlation Coefficient were used to analyze colocalization of GR, 5-HT, vesicle membrane protein synaptotagmin 1 and vesicle dye FM4-64FX. FFN511 and FM4-64FX dyes as well as calcium imaging were used to visualize vesicular 5-HT release upon application of GR agonist dexamethasone, GR antagonist mifepristone and voltage-gated calcium channel (VGCC) inhibitors.
resultsGR, 5-HT, synaptotagmin 1 and FM4-64FX showed overlapping staining patterns, with Pearson's Correlation Coefficient indicating colocalization. Similarly to potassium chloride, dexamethasone caused a release of FFN511 and uptake of FM4-64FX, indicating vesicular 5-HT release. Mifepristone, calcium depletion and inhibition of L-type VGCC significantly diminished dexamethasone-induced vesicular 5-HT release.
conclusionsIn close proximity to 5-HT releasing sites, activated GR rapidly triggers L-type VGCC-dependent vesicular 5-HT release. These findings provide a better understanding of the interrelationship between glucocorticoids and 5-HT release.
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