Lapatinib ditosylate monohydrate (GW572016 ditosylate monohydrate) 是一种ErbB-2和EGFR酪氨酸激酶结构域的有效抑制剂,对纯化的EGFR和ErbB-2的IC50值分别为 10.2 和 9.8 nM。
生物活性 | Lapatinib ditosylate monohydrate (GW572016 ditosylate monohydrate) is a potent inhibitor of theErbB-2andEGFRtyrosine kinase domains withIC50values against purifiedEGFRandErbB-2of 10.2 and 9.8 nM, respectively[1]. |
IC50& Target[1] | EGFR 10.8 nM (IC50) | ErbB2 9.2 nM (IC50) |
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体外研究 (In Vitro) | Lapatinib (GW2016; 0.03-10 μM; 6 hours; BT474 and HN5 cells) treatment inhibits receptor autophosphorylation of EGFR and ErbB-2 in a dose-responsive manner. Phosphorylation of serine 473 of AKT was inhibited by GW2016 in a dose-dependent manner[1]. Lapatinib (GW2016; 72 hours; HN5, A-43, BT474, N87, and CaLu-3 cells) treatment has a selective inhibition of the proliferation of human tumor cell lines[1]. Lapatinib (GW2016; 1-10 μM; 72 hours; HN5 cells) treatment results in induces G1 arrest[1].
Western Blot Analysis[1] Cell Line: | BT474 and HN5 cells | Concentration: | 0.03 μM, 0.1 μM, 0.3 μM, 1 μM, 3 μM, or 10 μM | Incubation Time: | 6 hours | Result: | Inhibited receptor autophosphorylation of EGFR and ErbB-2 in a dose-responsive manner. Phosphorylation of serine 473 of AKT was also inhibited in a dose-dependent manner. |
Cell Proliferation Assay[1] Cell Line: | HN5, A-43, BT474, N87, and CaLu-3 cells | Concentration: | | Incubation Time: | 72 hours | Result: | Inhibited the growth of tumor cells overexpressing EGFR or ErbB-2. |
Cell Cycle Analysis[1] Cell Line: | HN5 cells | Concentration: | 1 μM, or 10 μM | Incubation Time: | 72 hours | Result: | Resulted in induction of G1 arrest. |
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体内研究 (In Vivo) | Lapatinib (GW2016; 30-100 mg/kg; oral administration; twice daily; for 21 days; CD-1 nude female mice) treatment inhibits tumor xenograft growth of the HN5 cells in a dose-responsive manner at 30 and 100 mg/kg, with complete inhibition of tumor growth at the higher dose[1].
Animal Model: | CD-1 nude female mice (4-6 weeks old) with HN5 cells[1] | Dosage: | 30 mg/kg, 100 mg/kg | Administration: | Oral administration; twice daily; for 21 days | Result: | Inhibited tumor xenograft growth of the HN5 cells in a dose-responsive manner. |
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运输条件 | Room temperature in continental US; may vary elsewhere. |
储存方式 | 4°C, sealed storage, away from moisture *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture) |
溶解性数据 | In Vitro: DMSO : 50 mg/mL(53.00 mM;ultrasonic and warming and heat to 60℃) 配制储备液 1 mM | 1.0599 mL | 5.2995 mL | 10.5991 mL | 5 mM | 0.2120 mL | 1.0599 mL | 2.1198 mL | 10 mM | 0.1060 mL | 0.5300 mL | 1.0599 mL |
*请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效。 储备液的保存方式和期限:-80℃, 6 months; -20℃, 1 month (sealed storage, away from moisture)。-80℃ 储存时,请在 6 个月内使用,-20℃ 储存时,请在 1 个月内使用。 In Vivo: 请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照In Vitro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,建议您现用现配,当天使用;
以下溶剂前显示的百 分比是指该溶剂在您配制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 1. 请依序添加每种溶剂: 10% DMSO 90% (20%SBE-β-CDin saline) Solubility: 2.5 mg/mL (2.65 mM); Suspended solution; Need ultrasonic
此方案可获得 2.5 mg/mL (2.65 mM) 的均匀悬浊液,悬浊液可用于口服和腹腔注射。 以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL20% 的 SBE-β-CD 生理盐水水溶液中,混合均匀。
*以上所有助溶剂都可在本网站选购。 |