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描述 | Bombesin receptor subtype (BRS)-3 is an orphan G-protein coupled receptor (GPCR) whose role in normal physiology is unknown due to a lack of specific agonists and antagonists. ML-18, an antagonist of BRS-3 with IC50 of 4.8 μM, is used to inhibit lung cancer growth. Addition of 16 μM ML-18 antagonized the ability of 10 nM BA1 to increase cytosolic Ca2+ in lung cancer cells. Subsequent addition of 1 μM BA1 increased the cytosolic Ca2+ strongly indicating that ML-18 is a reversible nonpeptide BRS-3 antagonist. The increase in FAK, ERK and EGFR tyrosine phosphorylation caused by 0.1 μM BA1 was significantly inhibited by 16 μM ML-18. The results indicate that ML-18 in a dose-dependent manner decreases lung cancer FAK, ERK and EGFR tyrosine phosphorylation that is regulated by BRS-3. Further, proliferation of NCI-H1299 cells transfected with BRS-3 was moderately and strongly inhibited by 16 and 48 μM ML-18. In the clonogenic assay, 1.6 μM ML-18 significantly reduced the NCI-H727 colony number. Finally, 10 nM MK5046 (BRS-3 agonist) stimulated and increase in cytosolic calcium of NCI-H1299 cells transfected with BRS-3 and this increase was inhibited by ML-18 at 16 μM[1]. |
计算器 | ||||
存储液制备 | 1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
1.76mL 0.35mL 0.18mL |
8.78mL 1.76mL 0.88mL |
17.55mL 3.51mL 1.76mL |
CAS号 | 1422269-30-4 |
分子式 | C32H35N5O5 |
分子量 | 569.651 |
别名 | |
运输 | 蓝冰 |
存储条件 |
In solvent -20°C:3-6个月-80°C:12个月 Pure form Sealed in dry,2-8°C |
溶解方案 |
DMSO: 105 mg/mL(184.32 mM),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 以下溶解方案都请先按照体外实验的方式配制澄清的储备液,再依次添加助溶剂: ——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议现用现配,当天使用; 以下溶剂前显示的百分比是指该溶剂在终溶液中的体积占比;如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶
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动物实验配方 |