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Predicting Absorption-Distribution Properties of Neuroprotective Phosphine-Borane Compounds Using In Silico Modeling and Machine Learning
Authors:Raheem Remtulla  Sanjoy Kumar Das  Leonard A. Levin
Affiliation:1.Department of Ophthalmology and Visual Sciences, McGill University, Montreal, QC H4H 3S5, Canada;2.Drug Discovery Core, Research Institute, McGill University Health Centre, Montreal, QC H4A 3J1, Canada;3.Department of Neurology and Neurosurgery, McGill University, Montreal, QC H3A 2B4, Canada
Abstract:Phosphine-borane complexes are novel chemical entities with preclinical efficacy in neuronal and ophthalmic disease models. In vitro and in vivo studies showed that the metabolites of these compounds are capable of cleaving disulfide bonds implicated in the downstream effects of axonal injury. A difficulty in using standard in silico methods for studying these drugs is that most computational tools are not designed for borane-containing compounds. Using in silico and machine learning methodologies, the absorption-distribution properties of these unique compounds were assessed. Features examined with in silico methods included cellular permeability, octanol-water partition coefficient, blood-brain barrier permeability, oral absorption and serum protein binding. The resultant neural networks demonstrated an appropriate level of accuracy and were comparable to existing in silico methodologies. Specifically, they were able to reliably predict pharmacokinetic features of known boron-containing compounds. These methods predicted that phosphine-borane compounds and their metabolites meet the necessary pharmacokinetic features for orally active drug candidates. This study showed that the combination of standard in silico predictive and machine learning models with neural networks is effective in predicting pharmacokinetic features of novel boron-containing compounds as neuroprotective drugs.
Keywords:neuroprotection   pharmacokinetics   neural networks   phosphine-borane compounds
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