BAY 61-3606 是一种具有口服活性的，ATP 竞争性的可逆选择性Syk抑制剂。它作用于乳腺癌细胞，通过下调 Mcl-1 促进 TRAIL 诱导的细胞凋亡。它降低神经母细胞瘤细胞中的 ERK1/2 和 Akt 磷酸化，也降低 K-rn 细胞裂解物中 Syk 磷酸化。

BAY 61-3606 is a potent, ATP-competitive, reversible, and highly selective inhibitor of Syk tyrosine kinase activity (Ki= 7.5 nM), exhibiting no inhibitory effect against Btk, Fyn, Itk, Lyn, and Src.

BAY61-3606 as an inhibitor of proliferation in colorectal cancer cells expressing mutant forms of K-RAS, but not in isogenic cells expressing wild-type K-RAS. In addition to its anti-proliferative effects in mutant cells, BAY61-3606 exhibited a distinct biological property in wild-type cells in that it conferred sensitivity to inhibition of RAF. In this context, BAY61-3606 acted by inhibiting MAP4K2 (GCK), which normally activates NFκβ signaling in wild-type cells in response to inhibition of RAF. BAY 61-3606 inhibited not only degranulation (IC50 values between 5 and 46 nM) but also lipid mediator and cytokine synthesis in mast cells. BAY 61-3606 was highly efficacious in basophils obtained from healthy human subjects (IC50 = 10 nM) and seems to be at least as potent in basophils obtained from atopic (high serum IgE) subjects (IC50 = 8.1 nM). B cell receptor activation and receptors for Fc portion of IgG signaling in eosinophils and monocytes were also potently suppressed by BAY 61-3606.

Oral administration of BAY 61-3606 to rats significantly suppressed antigen-induced passive cutaneous anaphylactic reaction, bronchoconstriction, and bronchial edema at 3 mg/kg. Furthermore, BAY 61-3606 attenuated antigen-induced airway inflammation in rats.

732983-37-8

C20H18N6O3

390.403

2-[[7-(3,4-二甲氧基苯基)咪唑并[1,2-C]嘧啶-5-基]氨基]-3-吡啶甲酰胺;Syk inhibitor IV

DMSO:10 mM
Powder: -20°C for 3 years
In solvent: -80°C for 2 years