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Insights into the Pharmacokinetics and In Vitro Cell-Based Studies of the Imidazoline I2 Receptor Ligand B06

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Abstract: 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.

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International Journal of Molecular Sciences, 2022, num. 23, p. 5408

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cc-by (c) Bagan Polonio, Andrea et al., 2022

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Articles publicats en revistes (Farmacologia, Toxicologia i Química Terapèutica)

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Insights into the Pharmacokinetics and In Vitro Cell-Based Studies of the Imidazoline I2 Receptor Ligand B06