Interactions of Selective Serotonin Reuptake Inhibitors with β-Amyloid

ACS Chemical Neuroscience
Gary TinPraveen P N Rao

Abstract

Treating Alzheimer's disease (AD) is a major challenge at the moment with no new drugs available to cure this devastating neurodegenerative disorder. In this regard, drug repurposing, which aims to determine novel therapeutic usage for drugs already approved by the regulatory agencies, is a pragmatic approach to discover novel treatment strategies. Selective serotonin reuptake inhibitors (SSRIs) are a known class of United States Food and Drug Administration approved drugs used in the treatment of depression. We investigated the ability of SSRIs fluvoxamine, fluoxetine, paroxetine, sertraline, and escitalopram on Aβ42 aggregation and fibrillogenesis. Remarkably, the aggregation kinetic experiments carried out demonstrate the anti-Aβ42 aggregation activity of SSRIs fluoxetine, paroxetine, and sertraline at all the tested concentrations (1, 10, 50, and 100 μM). Both fluoxetine and paroxetine were identified as the most promising SSRIs, showing 74.8 and 76% inhibition of Aβ42 aggregation at 100 μM. The transmission electron microscopy experiments and dot-blot study also demonstrate the ability of fluoxetine and paroxetine to prevent Aβ42 aggregation and fibrillogenesis, providing further evidence. Investigating the binding interac...Continue Reading

Citations

Oct 13, 2020·Journal of Alzheimer's Disease : JAD·Melanie HüttenrauchSusana Castro-Obregón
Oct 14, 2019·Journal of Pharmaceutical and Biomedical Analysis·Angela De SimoneVincenza Andrisano

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