Title : Long-term treatment with antidepressants increases glucocorticoid receptor binding and gene expression in cultured rat hippocampal neurones.

Pub. Date : 1999 Nov

PMID : 10520140






4 Functional Relationships(s)
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1 The time course of the effects of the tricyclic antidepressants desipramine and amitriptyline on GR binding, as assessed by [3H]dexamethasone binding using RU 28362, a specific agonist for GR, showed a biphasic mode of stimulation: desipramine significantly increased the GR binding with 2-day exposure by 36% over that in controls and by 99% and 60% with 10- and 14-day exposures, respectively. Desipramine nuclear receptor subfamily 3, group C, member 1 Rattus norvegicus
2 Northern blot analysis demonstrated that the GR mRNA level was significantly increased by 14-day treatment with desipramine (+142% over control), amitriptyline (+108%), mianserin (+124%), paroxetine (+42%) and sulpiride (+92%), but not with haloperidol. Desipramine nuclear receptor subfamily 3, group C, member 1 Rattus norvegicus
3 Immunocytochemistry for GR revealed that 2- or 14-day treatment with desipramine significantly increased the number of GR-positive cells with dominant immunoreactivity in the nuclei of granule cell-like neurones or in perikarya of pyramidal cell- and granule cell-like neurones. Desipramine nuclear receptor subfamily 3, group C, member 1 Rattus norvegicus
4 Immunocytochemistry for GR revealed that 2- or 14-day treatment with desipramine significantly increased the number of GR-positive cells with dominant immunoreactivity in the nuclei of granule cell-like neurones or in perikarya of pyramidal cell- and granule cell-like neurones. Desipramine nuclear receptor subfamily 3, group C, member 1 Rattus norvegicus