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Closed Access item 5-imino-1,2,4-thiadiazoles: first small molecules as substrate competitive inhibitors of glycogen synthase kinase 3

Authors:Palomo Ruiz, Valle
Pérez , Daniel I.
Pérez, Concepción
Morales-García, José A.
Soteras, Ignacio
Alonso-Gil, Sandra
Encinas, Arantxa
Castro, Ana
Campillo, Nuria E.
Pérez Castillo, Ana
Gil, Carmen
Martínez, Ana
Issue Date:2012
Publisher:American Chemical Society
Citation:Journal of Medicinal Chemistry 55(4): 1645-1661 (2012)
Abstract:Cumulative evidence strongly supports that glycogen synthase kinase-3 (GSK-3) is a pathogenic molecule when it is up-dysregulated, emerging as an important therapeutic target in severe unmet human diseases. GSK-3 specific inhibitors might be promising effective drugs for the treatment of devastating pathologies such as neurodegenerative diseases, stroke, and mood disorders. As GSK-3 has the ability to phosphorylate primed substrates, small molecules able to bind to this site should be perfect drug candidates, able to partially block the activity of the enzyme over some specific substrates. Here, we report substituted 5-imino-1,2,4-thiadiazoles as the first small molecules able to inhibit GSK-3 in a substrate competitive manner. These compounds are cell permeable, able to decrease inflammatory activation and to selectively differentiate neural stem cells. Overall, 5-imino-1,2,4-thiadiazoles are presented here as new molecules able to decrease neuronal cell death and to increase endogenous neurogenesis blocking the GSK-3 substrate site
URI:http://hdl.handle.net/10261/60435
ISSN:0022-2623
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