BLZ945 is a highly selective and brain-penetrant inhibitor of CSF1R with IC50 of 1 nM and > 3200-fold higher than its affinity for other kinases.
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描述 | The inhibition of CSF-1R, which can deplete macrophages and reduce tumor volume, is an effective strategy to treat for glioblastoma multiforme because of the crucial function of CSF-1R through the paracrine CSF-1–EGF signaling loop in glioma microenvironment forming by the tumor-associated macrophages and microglia (TAMs). BLZ945 is a potent, selective and a brain-penetrant inhibitor of CSF-1R with IC50 value of 1nM (measured by enzymatic activity). The CSF-1–dependent proliferation of wild-type bone marrow–derived macrophages, also pCSF-1R-Y721 induced by CSF-1, can be inhibited by BLZ945 with EC50 value of 67nM. The in vivo study showed that treatment with BLZ945 can substantially decreased microglia numbers in normal brains but not tumor-associated macrophages and microglia in PDGF-B–driven glioma (PDG) mice because of the promotion of TAMs survival by glioma-supplied factors. However, TAMs can be functionally altered in BLZ945 treated gliomas because of the loss of M2 polarization and the enhancement of phagocytosis. Oral dose of 200mg/kg BLZ945 once daily improved survival and decreases glioma malignancy in the transgenic PDG model, with blocking of glioma progression and increased apoptosis[1]. |
Dose | Mice: 7 mg/kg - 169 mg/kg[2] (p.o.), 2.5 mg/kg[3] (i.v.) Rat: 10 mg/kg - 150 mg/kg[4] (p.o.) Monkey: 10 mg/kg - 100 mg/kg[4] (p.o.) |
Administration | p.o., i.v. |
计算器 | ||||
存储液制备 | 1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
2.51mL 0.50mL 0.25mL |
12.55mL 2.51mL 1.25mL |
25.10mL 5.02mL 2.51mL |
CAS号 | 953769-46-5 |
分子式 | C20H22N4O3S |
分子量 | 398.479 |
别名 | BLZ945 |
运输 | 蓝冰 |
存储条件 |
粉末 Keep in dark place,Sealed in dry,2-8°C 液体 -20°C:3-6个月-80°C:12个月 |
溶解度 |
DMSO: 85 mg/mL(213.31 mM),配合低频超声助溶,注意:DMSO长时间开封后,会吸水并导致溶解能力下降,请避免使用长期开封的DMSO |
动物实验配方 |
4% DMSO+30% PEG 300+water 2.5 mg/mL |