A Triazolotriazine‐Based Dual GSK‐3β/CK‐1δ Ligand as a Potential Neuroprotective Agent Presenting Two Different Mechanisms of Enzymatic Inhibition. (15th January 2019)

• Record Type: Journal Article
• Authors: Redenti, Sara; Marcovich, Irene; De Vita, Teresa; Pérez, Concepción; De Zorzi, Rita; Demitri, Nicola; Perez, Daniel I.; Bottegoni, Giovanni; Bisignano, Paola; Bissaro, Maicol; Moro, Stefano; Martinez, Ana; Storici, Paola; Spalluto, Giampiero; Cavalli, Andrea; Federico, Stephanie
• Is Part Of: ChemMedChem. Volume 14:Number 3(2019)
• Page Start: 310
• Page End: 314
• Publication Date: 2019-01-15
• Subjects: casein kinase 1δ -- glycogen synthase kinase 3β -- neuroinflammation -- Parkinson's disease -- thia-Michael reaction; Pharmaceutical chemistry -- Periodicals; 615.19005
• DOI: 10.1002/cmdc.201800778
• Languages: English
• ISSNs: 1860-7179

Abstract

Abstract: Glycogen synthase kinase 3β (GSK‐3β) and casein kinase 1δ (CK‐1δ) are emerging targets for the treatment of neuroinflammatory disorders, including Parkinson's disease. An inhibitor able to target these two kinases was developed by docking‐based design. Compound12, 3‐(7‐amino‐5‐(cyclohexylamino)‐[1, 2, 4]triazolo[1, 5‐ a ][1, 3, 5]triazin‐2‐yl)‐2‐cyanoacrylamide, showed combined inhibitory activity against GSK‐3β and CK‐1δ [IC50 (GSK‐3β)=0.17 μm ; IC50 (CK‐1δ)=0.68 μm ]. In particular, classical ATP competition was observed against CK‐1δ, and a co‐crystal of compound12 inside GSK‐3β confirmed a covalent interaction between the cyanoacrylamide warhead and Cys199, which could help in the development of more potent covalent inhibitors of GSK‐3β. Preliminary studies on in vitro models of Parkinson's disease revealed that compound12 is not cytotoxic and shows neuroprotective activity. These results encourage further investigations to validate GSK‐3β/CK‐1δ inhibition as a possible new strategy to treat neuroinflammatory/degenerative diseases. Abstract : Good polypharmacology : A dual inhibitor of GSK‐3β and CK‐1δ kinases was discovered. Compound12 is an ATP‐competitive inhibitor of CK‐1δ and a covalent inhibitor of GSK‐3β. It showed neuroprotective activity in preliminary in vitro tests, suggesting further investigations to validate this dual inhibition as a promising strategy for treating neuroinflammatory disorders such as Parkinson's disease.