Insights into the pharmacokinetics and in vitro cell-based studies of the imidazoline I2 receptor ligand B06

The impact of neurodegenerative diseases (ND) is becoming unbearable for humankind due to their vast prevalence and the lack of efficacious treatments. In this scenario, we focused on imidazoline I2 receptors (I2-IR) that are widely distributed in the brain and are altered in patients with brain dis...

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Bibliographic Details
Authors: Bagán Polonio, Andrea, Morales García, José A., Griñán Ferré, Christian, Díaz Navarro, Caridad, Pérez del Palacio, José, Ramos Martín, Maria Carmen, Vicente Pérez, Francisca, Pérez Fernández, Belén, Brea Floriani, José Manuel, Loza García, María Isabel, Pallàs Lliberia, Mercè, Escolano Mirón, Carmen
Format: article
Publication Date:2022
Country:España
Institution:Universidad de Santiago de Compostela (USC)
Repository:Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela
Language:English
OAI Identifier:oai:minerva.usc.gal:10347/45126
Online Access:https://hdl.handle.net/10347/45126
Access Level:Open access
Keyword:Imidazoline I2 receptor ligand
Pharmacokinetics
Bicyclic α-iminophosphonate
Metabolic profile
Neuroprotection
Alzheimer’s disease
Parkinson’s disease
Description
Summary:The impact of neurodegenerative diseases (ND) is becoming unbearable for humankind due to their vast prevalence and the lack of efficacious treatments. In this scenario, we focused on imidazoline I2 receptors (I2-IR) that are widely distributed in the brain and are altered in patients with brain disorders. We took the challenge of modulating I2-IR by developing structurally new molecules, in particular, a family of bicyclic α-iminophosphonates, endowed with high affinity and selectivity to these receptors. Treatment of two murine models, one for age-related cognitive decline and the other for Alzheimer’s disease (AD), with representative compound B06 ameliorated their cognitive impairment and improved their behavioural condition. Furthermore, B06 revealed beneficial in vitro ADME-Tox properties. The pharmacokinetics (PK) and metabolic profile are reported to de-risk B06 for progressing in the preclinical development. To further characterize the pharmacological properties of B06, we assessed its neuroprotective properties and beneficial effect in an in vitro model of Parkinson’s disease (PD). B06 rescued the human dopaminergic cell line SH-SY5Y from death after treatment with 6-hydroxydopamine (6-OHDA) and showed a crucial anti-inflammatory effect in a cellular model of neuroinflammation. This research reveals B06 as a putative candidate for advancing in the difficult path of drug discovery and supports the modulation of I2-IR as a fresh approach for the therapy of ND