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生物活性
LY2109761 is a small-molecule inhibitor selectively targeting both TGF-β receptor type I and II ((TβRI/II)) with Ki of 38 nM and 300 nM, respectively [1]. It gave IC50 value of 69 nM in TβRI enzymatic assay [2]. Crystal structure showed the binding of LY2109761 to the ATP binding site of the TGF-β R1 kinase domain [2]. Weak inhibitory activities were reported for other kinases, including Lck, Sapk2α, MKK6, Fyn, and JNK3 (18–89% inhibition at 20 µM).
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体外研究
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体内研究
0.5% CMC+0.25% Tween 80
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激酶实验
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细胞实验
~10 μM
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动物实验
50 mg/kg 口服处理，每天两次
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不同实验动物依据体表面积的等效剂量转换表（数据来源于FDA指南）
|  动物 A (mg/kg) = 动物 B (mg/kg)×动物 B的Km系数/动物 A的Km系数 |
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例如，已知某工具药用于小鼠的剂量为88 mg/kg , 则用于大鼠的剂量换算方法：将88 mg/kg 乘以小鼠的Km系数（3），再除以大鼠的Km系数（6），得到该药物用于大鼠的等效剂量44 mg/kg。
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参考文献
[1] Melisi D, et al. Mol Cancer Ther, 2008, 7(4), 829-840.
[2] Zhang M, et al. Blockade of TGF-β signaling by the TGFβR-I kinase inhibitor LY2109761 enhances radiation response and prolongs survival in glioblastoma. Cancer Res, 2011, 71(23), 7155-7167.
[3] Fransvea E, et al. Blocking transforming growth factor-beta up-regulates E-cadherin and reduces migration and invasion of hepatocellular carcinoma cells. Hepatology, 2008, 47(5), 1557-1566.
分子式
C26H27N5O2 |
分子量
441.52 |
CAS号
700874-71-1 |
储存方式
﹣20 ℃冷藏长期储存。冰袋运输 |
溶剂（常温）
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DMSO
<1 mg/mL |
Water
<1 mg/mL |
Ethanol
2 mg/mL |
体内溶解度
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Clinical Trial Information ( data from http://clinicaltrials.gov )
注：以上所有数据均来自公开文献，并不保证对所有实验均有效，数据仅供参考。
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