S81368 |
AMG 319 |
源葉(MedMol) | 98% |
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- 產(chǎn)品描述: AMG319 is a potent and selective PI3Kδ kinase inhibitor with IC50 of 18 nM.
- 靶點: PI3Kδ:18 nM (IC50);PI3Kγ:850 nM (IC50);PI3Kβ:2.7 μM (IC50);PI3Kα:33 μM (IC50);PI3K
- 體外研究:
AMG319 inhibits PI3Kδ, PI3Kγ, PI3Kβ and PI3Kα with IC50s of 18 nM, 850 nM, 2.7 μM and 33 μM, respectively. AMG319, a compound with an IC50 of 16 nM in a human whole blood assay (HWB), excellent selectivity over a large panel of protein kinases, and a high level of in vivo efficacy as measured by two rodent disease models of inflammation. AMG319 has minimal CYP3A4/2D6 inhibition and does not inhibit CYPs (1A2, 2C8, 2C9, 2C19, 2E1, all >20 μM). There is no time dependent inhibition (TDI) against CYPs 3A4, 2D6, 1A2, and 2C9 nor CYP induction (3A4, 2D6, 1A2, 2B6) as measured in hepatocytes. AMG319 is clean in a hERG binding assay (>25 μM), and an Ames micronucleus test proved negative. AMG319 has minimal effects in a BSEP assay up to >200 μM. Additionally, AMG319 is clean in a large side effect profiling panel (CEREP) and has no activity in a large panel of 359 unique protein kinases tested at 10 μM drug concentration
- 體內(nèi)研究:
The study is performed to determine the correlation between biochemical coverage (i.e., pAKT) with functional activity in vivo. AMG319 achieves this coverage at the 3 mg/kg level, which also coveres the human whole blood assay (HWB) (CD-69) IC90 at trough for a full 24 h period. The lower doses 0.1, 0.3, and 1 mg/kg cover trough concentrations between the HWB IC50 and IC90 and evince partial efficacy. Similarly, the plasma concentration of AMG319 covers the IC90 at the 1 mg/kg dose of the mouse anti-IgM pAKT in vitro assay
- 細胞實驗: Cells are seeded in 96-well plates at 2,000 (Sup-T1, Jurkat, and DND-41) or 10,000 (HPB-ALL or TALL-1) cells/well in growth media supplemented with 10% fetal bovine serum. Serial dilutions of Nirogacestat (PF-03084014) are done in DMSO, appropriate controls or designated concentrations of Nirogacestat (PF-03084014) are added to each well, and cells are incubated at 37°C for 7 days (final DMSO content 0.1%). Resazurin at a final concentration of 0.1 mg/mL is added to the cells and plates are incubated for 2 to 4 hours. Fluorescent signals are read as emission at 590 nm after excitation at 560 nm. IC50 values are calculated by using the sigmoidal dose-response (variable slope) in GraphPad Prism.
- 動物實驗: Mice Athymic female mice (nu/nu, 6-8 weeks) are used. For antitumor efficacy, animals bearing tumors of 150 to 300 mm3 in size are randomly divided into groups that received either vehicle (0.5% methylcellulose) or Nirogacestat (PF-03084014) (150 mg/kg, diluted in vehicle), and dosed by oral gavage. Animal body weight and tumor measurements are obtained every 2 to 3 days. Tumor volume (mm3) is measured with Vernier calipers and calculated. Percent (%) inhibition values are measured on the final day of study for drug-treated compared with vehicle-treated mice and are calculated. For all tumor growth inhibition experiments, 8 to 10 mice per dose group are used. Student's t test is used to determine the P value.
- 參考文獻:
1. Cushing TD, et al. Discovery and in vivo evaluation of (S)-N-(1-(7-fluoro-2-(pyridin-2-yl)quinolin-3-yl)ethyl)-9H-purin-6-amine (AMG319) and related PI3Kδ inhibitors for inflammation and autoimmune disease. J Med Chem. 2015 Jan 8;58(1):480-511.
- 溶解性: soluble in DMSO
- 保存條件: -20℃
- 配置溶液濃度參考:
1mg 5mg 10mg 1 mM 2.595 ml 12.974 ml 25.947 ml 5 mM 0.519 ml 2.595 ml 5.189 ml 10 mM 0.259 ml 1.297 ml 2.595 ml 50 mM 0.052 ml 0.259 ml 0.519 ml
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質(zhì)量 (mg) = 濃度 (mM) x 體積 (mL) x 分子摩爾量 (g/mol)