Merck, SML3853-50MG, GSK143 dihydrochloride

Biochem/physiol Actions
GSK143 is an orally active, potent and selective syk inhibitor (pIC50 = 7.5 or IC50 = 31.6 nM) with good selectivity over 66 protein kinases, including ZAP-70 (pIC50 = 4.7 or IC50 = 20 μM). GSK143 effectively inhibits anti-IgM induced Erk1/2 phosphorylation in Ramos cells (pIC50 = 7.1 or IC50 = 79.4 nM) and demonstrates in vivo efficacy in animal inflammatory disease models, including reverse Arthus passive reaction (10 & 30 mg/kg po. in rats), postoperative ileus (POI, 1, 3 or 10 mg/kg po. in mice), and chronic HDM-induced allergic airways inflammation (30 mg/kg/day po. in mice).
Orally active, potent and highly selective syk inhibitor with in vivo efficacy in animal inflammatory disease models.
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