生物活性 | |||
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靶点 |
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描述 | The epidermal growth factor receptor (EGFR) activates several signaling cascades in response to epidermal growth factor stimulation. One of these signaling events involves tyrosine phosphorylation of signal transducer and activator of transcription (STAT), whereas another involves activation of the phosphatidylinositol 3-OH kinase pathway. Two possibilities for STAT activation exist: a janus kinase (JAK)-dependent and a JAK-independent mechanism[3]. AG 490 is nephroprotective by inhibiting oxidative stress-related Janus activated kinase-2 (JAK2) activation with IC50s 7 μM and 0.1 μM for JAK2 and EGFR, respectively[4]. AG490 is used to inhibit phosphorylation of EGFR and signal transducer and activator of STAT-3, and subsequently reduce invasion and adhesion potential of malignant cells[5]. AG-490 belongs to the tyrphostin family of tyrosine kinase inhibitors, which block protein tyrosine kinases by binding to the substrate-binding site. In a vitro study, EPC2 cells were starved for 48h without EGF and then stimulated with 10 ng/ml EGF for designated time periods at 37°C, washed three times with ice-cold PBS, lysed, and centrifuged for 15 min at 4°C, then 50 μM AG-490 were added during culture. It showed that the AG 490 was the most potent, essentially abolishing migration. Importantly, addition of AG-490 had no effect on the viability of the cells[3]. In a vivo study, one vial of compound containing 5 mg of AG490 was injected into 5 mice (1 mg/mouse) via intraperitoneal (i.p) route. Mice (4 weeks of age) were treated three times per week for 5 consecutive weeks and were euthanized one week after the last injection at week 10. Concentration of Tyrphostin AG 490 was 10 μM. The result showed that AG490 treatment of young non-diabetic NOD mice significantly reduced blood glucose levels[6]. | ||
作用机制 | AG-490 blocks protein tyrosine kinases by binding to the substrate-binding site[3]. |
细胞研究 | |||||
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细胞系 | 浓度 | 检测类型 | 检测时间 | 活动说明 | 数据源 |
7TD1-DXM | 10 μM | Growth Inhibition Assay | 72 h | inhibits cell growth | 23871159 |
7TD1-DXM | 50 μM | Apoptosis Assay | 48 h | induces apoptosis | 23871159 |
7TD1-WD-90 | 10 μM | Growth Inhibition Assay | 72 h | inhibits cell growth | 23871159 |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
3.40mL 0.68mL 0.34mL |
16.99mL 3.40mL 1.70mL |
33.98mL 6.80mL 3.40mL |
参考文献 |
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