Title : Fluvoxamine rescues mitochondrial Ca2+ transport and ATP production through σ(1)-receptor in hypertrophic cardiomyocytes.

Pub. Date : 2014 Jan 30

PMID : 24373833






8 Functional Relationships(s)
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1 Fluvoxamine rescues mitochondrial Ca2+ transport and ATP production through sigma(1)-receptor in hypertrophic cardiomyocytes. Fluvoxamine sigma non-opioid intracellular receptor 1 Rattus norvegicus
2 AIMS: We previously reported that fluvoxamine, a selective serotonin reuptake inhibitor with high affinity for the sigma1-receptor (sigma1R), ameliorates cardiac hypertrophy and dysfunction via sigma1R stimulation. Fluvoxamine sigma non-opioid intracellular receptor 1 Rattus norvegicus
3 AIMS: We previously reported that fluvoxamine, a selective serotonin reuptake inhibitor with high affinity for the sigma1-receptor (sigma1R), ameliorates cardiac hypertrophy and dysfunction via sigma1R stimulation. Fluvoxamine sigma non-opioid intracellular receptor 1 Rattus norvegicus
4 AIMS: We previously reported that fluvoxamine, a selective serotonin reuptake inhibitor with high affinity for the sigma1-receptor (sigma1R), ameliorates cardiac hypertrophy and dysfunction via sigma1R stimulation. Fluvoxamine sigma non-opioid intracellular receptor 1 Rattus norvegicus
5 Interestingly, sigma1R stimulation with fluvoxamine rescued impaired mitochondrial Ca(2+) mobilization and ATP production, an effect abolished by treatment of cells with the sigma1R antagonist, NE-100. Fluvoxamine sigma non-opioid intracellular receptor 1 Rattus norvegicus
6 Interestingly, sigma1R stimulation with fluvoxamine rescued impaired mitochondrial Ca(2+) mobilization and ATP production, an effect abolished by treatment of cells with the sigma1R antagonist, NE-100. Fluvoxamine sigma non-opioid intracellular receptor 1 Rattus norvegicus
7 SIGNIFICANCE: These results suggest that sigma1R stimulation with fluvoxamine promotes SR-mitochondrial Ca(2+) transport and mitochondrial ATP production, whereas sigma1R stimulation suppresses intracellular Ca(2+) overload through IP3Rs and RyRs. Fluvoxamine sigma non-opioid intracellular receptor 1 Rattus norvegicus
8 These mechanisms likely underlie in part the anti-hypertrophic and cardioprotective action of the sigma1R agonists including fluvoxamine. Fluvoxamine sigma non-opioid intracellular receptor 1 Rattus norvegicus