GSK-3

VP3.15 is a potent, orally bioavailable and CNS-penetrant dual phosphodiesterase (PDE)7- glycogen synthase kinase (GSK)3 inhibitor, with IC50s of 1.59 μM and 0.88 μM for PDE7 and GSK-3, respectively. VP3.15 has neuroprotective and neuroreparative activities, thus as potential combined anti-inflammatory and pro-remyelinating therapies for multiple sclerosis (MS).

GSK-3β inhibitor 1 (compound 3a) is a glycogen synthase kinase 3β (GSK-3β) inhibitor and demonstrates high antidiabetic efficacy, with an IC50 of 4.9 nM.

Indirubin-3'-monoxime-5-sulphonic acid is a potent and selective inhibitor of CDK1, CDK5, and GSK-3β with IC50s of 5 nM, 7 nM, and 80 nM, respectively.

5-Iodo-indirubin-3'-monoxime is a potent GSK-3β, CDK5/P25 and CDK1/cyclin B inhibitor, competing with ATP for binding to the catalytic site of the kinase, with IC50s of 9, 20 and 25 nM, respectively.

GSK-3 inhibitor 1 is an inhibitor of GSK-3.