Silmitasertib (CX-4945), a clinically used CK2-kinase inhibitor with additional effects on GSK3β and DYRK1A kinases: A structural perspective.
J. Med. Chem. 66, 4009-4024 (2023)
A clinical casein kinase 2 inhibitor, CX-4945 (silmitasertib), shows significant affinity toward the DYRK1A and GSK3β kinases, involved in down syndrome phenotypes, Alzheimer's disease, circadian clock regulation, and diabetes. This off-target activity offers an opportunity for studying the effect of the DYRK1A/GSK3β kinase system in disease biology and possible line extension. Motivated by the dual inhibition of these kinases, we solved and analyzed the crystal structures of DYRK1A and GSK3β with CX-4945. We built a quantum-chemistry-based model to rationalize the compound affinity for CK2α, DYRK1A, and GSK3β kinases. Our calculations identified a key element for CK2α's subnanomolar affinity to CX-4945. The methodology is expandable to other kinase selectivity modeling. We show that the inhibitor limits DYRK1A- and GSK3β-mediated cyclin D1 phosphorylation and reduces kinase-mediated NFAT signaling in the cell. Given the CX-4945's clinical and pharmacological profile, this inhibitory activity makes it an interesting candidate with potential for application in additional disease areas.
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Publication type
Article: Journal article
Document type
Scientific Article
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Editors
Keywords
Glycogen-synthase Kinase-3; Dependent Protein-kinase; Basis-sets; Selective Inhibitor; Magic Bullets; Design; Phosphorylation; Efficient; 3-beta; Drugs
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Language
english
Publication Year
2023
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0
HGF-reported in Year
2023
ISSN (print) / ISBN
0022-2623
e-ISSN
1520-4804
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Volume: 66,
Issue: 6,
Pages: 4009-4024
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American Chemical Society (ACS)
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1155 16th St, Nw, Washington, Dc 20036 Usa
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Reviewing status
Peer reviewed
POF-Topic(s)
30203 - Molecular Targets and Therapies
Research field(s)
Enabling and Novel Technologies
PSP Element(s)
G-503000-001
G-506300-001
Grants
Foundation for Polish Science
NAWA Polish Returns 2018
National Science Center
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Erfassungsdatum
2023-10-06