| 中文名称: | Afatinib 促销 一键复制产品信息 | ||||
|---|---|---|---|---|---|
| 英文名称: | Afatinib | ||||
| 别名: | 阿法替尼 (S,E)-N-(4-((3-chloro-4-fluorophenyl)amino)-7-((tetrahydrofuran-3-yl)oxy)quinazolin-6-yl)-4-(dimethylamino)but-2-enamide dimaleate | ||||
| CAS No: | 439081-18-2 | 分子式: | C24H25ClFN5O3 | 分子量: | 485.94 |
| CAS No: | 439081-18-2 | ||||
| 分子式: | C24H25ClFN5O3 | ||||
| 分子量: | 485.94 | ||||
产品简介：
一种不可逆的EGFR/Neu抑制剂，IC50：14nM。
Afatinib is an irreversible EGFR/Neu inhibitor with an IC50 of 14 nM. Afatinib is a potent inhibitor of EGFR phosphorylation. Afatinib showed positive results in assays against a variety of human cancer cell lines, including A431, murine NIH-3T3 cells, and breast cancer cell line BT-474。
Afatinib is an irreversible EGFR/Neu inhibitor with an IC50 of 14 nM. Afatinib is a potent inhibitor of EGFR phosphorylation. Afatinib showed positive results in assays against a variety of human cancer cell lines, including A431, murine NIH-3T3 cells, and breast cancer cell line BT-474。
溶解性：
溶于DMSO(97mg/mL )和乙醇
储备液保存：
-80°C, 6 months
-20°C, 1 month
(protect from light)
-20°C, 1 month
(protect from light)
体外研究：
有效、不可逆的 Her2/ErbB 2 和 EGFR 激酶抑制剂。
激酶实验：
The wild type tyrosine kinase domain of the human EGFR, as well as the EGFR L858R/T790M double mutant, were fused to Glutathione-S-transferase (GST) and extracted as described in Supplementary methods. The L858R mutant was purchased from Upstate. Enzyme activity was then assayed in the presence or absence of serial inhibitor dilutions performed in 50% Me2SO. A random polymer pEY (4:1) from Sigma was used as substrate. Biotinylated pEY was added as a tracer substrate. The kinase domain of HER2 was cloned using baculovirus system and extracted similarly to that of EGFR kinase domain. Detailed procedures for EGFR, HER2, SRC, BIRK and VEGFR2 kinase activity assays are included in Supplementary information .
细胞实验：
Cells (1×10^4) were transferred into each well of a 96-well plate and cultured over night in serum-free media for EGFR phosphorylation assay. After addition of test compounds on the next day, the plates were then incubated at 37°C for 1 hour. EGF-stimulation was done at 100 ng/ml for 10 min at room temperature. Cells were washed with ice cold PBS before extraction with 120 μl per well HEPEX buffer and shaken for 1 h at room temperature. In all 2×10^4 cells per well was used for HER2 phosphorylation assay. Streptavidin precoated plates were coated with anti-EGFR-biotin at 1:100 dilution with blocking buffer and c-erb2/HER2 oncoprotein Ab-5(Clone N24)-Biotin. Extracts from above steps were then transferred to the antibody-coated wells and incubated for 1 h at room temperature. Assessment of color development is described in Supplementary information. Extinction was measured at 450 nm. The data generated were analysed by the program PRISM. Normalized values were used to calculate the IC50 by a nonlinear regression curve fit (variable slope) .
动物实验：
Six weeks old female athymic nude mice (nu/nu) weighing about 16-20 gram were housed by Laboratory Animal Services Centre of The Chinese University of Hong Kong. The experiment was conducted by researchers under license from the Hong Kong Government Department of Health and according to approval given by Animal Experimentation Ethics Committee of the Chinese University of Hong Kong. ESCC xenografts were established by inoculating HKESC-2 (0.6 × 10^5 cells re-suspended in 50 μl of HBSS-buffer) subcutaneously into both flanks of the nude mice. When tumor size reached to 4-6 mm diameter, they were randomized in either treatment (15 mg/kg) or vehicle control group. Afatinib for treatment was prepared by dissolving in 0.5% methylcellulose before administration. Either drug or vehicle was administered to mouse by oral gavage in a schedule of 5 days on plus 2 days off for two weeks. Drug efficacy was evaluated by monitoring the change in tumor size with caliper. Tumor volume was calculated with the formula Tumor Volume = (width2 × length)/2 .
保存条件：
-20℃
注意事项：
1、为了您的安全和健康，请穿实验服并戴一次性手套操作。
2、以上信息仅做参考交流之用。
2、以上信息仅做参考交流之用。
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