产品描述:
R112 is an inhibitor of spleen tyrosine kinase (Syk; IC50 = 226 nM in cultured human mast cells) that acts in an ATP-competitive and reversible manner (Ki = 96 nM).{46184} It inhibits mast cell and basophil degranulation induced by anti-IgE cross-linking (EC50s = 353 and 280 nM, respectively). It also inhibits basophil degranulation induced by an allergen with an EC50 value of 490 nM. R112 inhibits the production of leukotriene C4 (LTC4; Item No. 20210) and decreases cytokine levels in cultured human mast cells.