Superiority of the Triple-Acting 5-HT 6 R/5-HT 3 R Antagonist and MAO-B Reversible Inhibitor PZ-1922 over 5-HT 6 R Antagonist Intepirdine in Alleviation of Cognitive Deficits in Rats
Résumé
The multifactorial origin and neurochemistry of Alzheimer's disease (AD) call for the development of multitarget treatment strategies. We report a first-in-class triple acting compound that targets serotonin type 6 and 3 receptors (5-HT-Rs) and monoamine oxidase type B (MAO-B) as an approach for treating AD. The key structural features required for MAO-B inhibition and 5-HT6R antagonism and interaction with 5-HT3R were determined using molecular dynamic simulations and cryo-electron microscopy, respectively. Bioavailable PZ-1922 reversed scopolamine-induced cognitive deficits in the novel object recognition test. Furthermore, it displayed superior pro-cognitive properties compared to intepirdine (a 5-HT6R antagonist) in the AD model, which involved intracerebroventricular injection of an oligomeric solution of amyloid-β peptide (oAβ) in the T-maze test in rats. PZ-1922, but not intepirdine, restored levels of biomarkers characteristic of the debilitating effects of oAβ. These data support the potential of a multitarget approach involving the joint modulation of 5-HT6R/5-HT3R/MAO-B in AD.
Fichier principal
grychowska-et-al-2023-superiority-of-the-triple-acting-5-ht6r-5-ht3r-antagonist-and-mao-b-reversible-inhibitor-pz-1922.pdf (8.07 Mo)
Télécharger le fichier
| Origine | Publication financée par une institution |
|---|---|
| Licence |
