GSK503 is a potent and specific inhibitor of EZH2 methyltransferase with Ki values of 3 to 27 nM.
性状
Solid
IC50 & Target[1][2]
EZH2
体外研究(In Vitro)
GSK503 inhibits the methyltransferase activity of wild type and mutant EZH2 with similar potency (Ki=3-27 nM) and is structurally related to GSK126 and GSK343. GSK503 is >200 fold selective over EZH1 (Ki=636 nM) and >4000 fold selective over other histone methyltransferases.
Medlife has not independently confirmed the accuracy of these methods. They are for reference only.
体内研究(In Vivo)
In a melanoma mouse model, conditional EZH2 ablation as much as treatment with the GSK503 stabilizes the disease through inhibition of growth and virtually abolishes metastases formation without affecting normal melanocyte biology. GSK503 displays favorable pharmacokinetics in mice. GSK503, but not vehicle, prevents the formation of germinal center after SRBC or NP-KLH immunization, phenocopying the Ezh2 null phenotype. GSK503 treatment leads to reduced numbers of GC B-cells by flow cytometry, reduces number and volume of GCs by immunohistochemistry, and impairs formation high affinity antibodies.
Medlife has not independently confirmed the accuracy of these methods. They are for reference only.