Osimtinib 是一种小分子酪氨酸激酶受体抑制剂和抗肿瘤剂,用于治疗选定形式的晚期非小细胞肺癌,其有效抑制 L858R 和 L858R/T790M EGFR,IC50 为 12 和 1 nM。
产品描述
Osimertinib is a small molecule tyrosine kinase receptor inhibitor and antineoplastic agent that is used in the therapy of selected forms of advanced non-small cell lung cancer (NSCLC).
体外活性
EGFRm+(PC9)和EGFRm+/ T790M(H1975)肿瘤模型肿瘤中,口服 AZD9291(5 mg/kg)能够抑制AKT和ERK信号通路及体内的EGFR磷酸化,引起肿瘤的消退
体内活性
在突变EGFR细胞系中,AZD9291能够有效得抑制细胞增殖。
激酶实验
ACY-1215 is dissolved and subsequently diluted in assay buffer [50 mM HEPES, pH 7.4, 100 mM KCl, 0.001% Tween-20, 0.05% BSA, and 20 μM tris(2-carboxyethyl)phosphine] to 6-fold the final concentration. HDAC enzymes are diluted to 1.5-fold of the final concentration in assay buffer and pre-incubated with ACY-1215 for 10 minutes before the addition of the substrate. The amount of FTS (HDAC1, HDAC2, HDAC3, and HDAC6) or MAZ-1675 (HDAC4, HDAC5, HDAC7, HDAC8, and HDAC9) used for each enzyme is equal to the Michaelis constant (Km), as determined by a titration curve. FTS or MAZ-1675 is diluted in assay buffer to 6-fold the final concentration with 0.3 μM sequencing grade trypsin. The substrate/trypsin mix is added to the enzyme/compound mix and the plate is shaken for 60 seconds and then placed into a SpectraMax M5 microtiter plate reader. The enzymatic reaction is monitored for release of 7-amino-4-methoxy-coumarin over 30 minutes, after deacetylation of the lysine side chain in the peptide substrate, and the linear rate of the reaction is calculated[1].
细胞实验
AZD-9291 is dissolved in DMSO and stored, and then diluted with appropriate medium before use[1]. PC-9 cells are seeded into T75 flasks (5×105 cells/flask) in RPMI growth media and incubated at 37°C, 5% CO2. The following day the media is replaced with media supplemented with a concentration of EGFR inhibitor equal to the EC50 concentration predetermined in PC-9 cells. Media changes are carried out every 2-3 days and resistant clones allowed to grow to 80% confluency prior to the cells being trypsinised and reseeded at the original seeding density in media containing twice the concentration of EGFR inhibitor. Dose escalations are continued until a final concentration of 1.5 μM Gefitinib, 1.5 μM Afatinib, 1.5 μM WZ4002 or 160 nM AZD-9291 are achieved[1].
Cas No.
1421373-65-0
分子式
C28H33N7O2
分子量
499.61
别名
AZD-9291;Mereletinib;奥希替尼
储存和溶解度
Ethanol:22 mg/mL(44 mM)
DMSO:92 mg/mL (184.1 mM)
H2O:<1 mgml
Powder: -20°C for 3 years
In solvent: -80°C for 2 years