alexa (R)-α-lipoyl-glycyl-L-prolyl-L-glutamyl dimethyl ester codrug as a multifunctional agent with potential neuroprotective activities.
Nephrology

Nephrology

Journal of Nephrology & Therapeutics

Author(s): Cacciatore I, Baldassarre L, Fornasari E, Cornacchia C, Di Stefano A,

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Abstract The (R)-α-lipoyl-glycyl-L-prolyl-L-glutamyl dimethyl ester codrug (LA-GPE, 1) was synthesized as a new multifunctional drug candidate with antioxidant and neuroprotective properties for the treatment of neurodegenerative diseases. Physicochemical properties, chemical and enzymatic stabilities were evaluated, along with the capacity of LA-GPE to penetrate the blood-brain barrier (BBB) according to an in vitro parallel artificial membrane permeability assay for the BBB. We also investigated the potential effectiveness of LA-GPE against the cytotoxicity induced by 6-hydroxydopamine (6-OHDA) and H2O2 on the human neuroblastoma cell line SH-SY5Y by using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) reduction assay. Our results show that codrug 1 is stable at both pH 1.3 and 7.4, exhibits good lipophilicity (log P=1.51) and a pH-dependent permeability profile. Furthermore, LA-GPE was demonstrated to be significantly neuroprotective and to act as an antioxidant against H2O2- and 6-OHDA-induced neurotoxicity in SH-SY5Y cells. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This article was published in ChemMedChem and referenced in Journal of Nephrology & Therapeutics

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