| 產(chǎn)品描述： | OSI-027 (ASP7486) is a potent, selective, orally active and ATP-competitive mTOR kinase activity inhibitor with an IC50 of 4 nM. OSI-027 targets both mTORC1 and mTORC2 with IC50s of 22 nM and 65 nM, respectively |
| 靶點(diǎn)： |
mTOR：4 nM (IC50)；mTORC1：22 nM (IC50)；mTORC2：65 nM (IC50)；PI3K-γ：0.42 μM (IC50)；PI3K-α：1.3 μM (IC50)；DNA-PK：1 μM (IC50)；Autophagy;DNA-PK;?PI3K;?mTOR;?Autophagy |
| 體內(nèi)研究： |
Effects on GEO colorectal xenograft growth treated with Rapamycin or OSI-027 for 12 days are consistent with our in vitro experiments. Treatment with Rapamycin (20 mg/kg) inhibits phospho-S6 and phospho-4E-BP1, while Akt phosphorylation is increased by 29%. In contrast, OSI-027 (65 mg/kg) inhibits both mTORC1 and mTORC2 effectors. After 2 hours, decreased 4E-BP1, Akt, and S6 phosphorylation is observed and inhibition of S6 and Akt is sustained for 24 hours. The plasma drug concentration of OSI-027 inversely correlated with these effects on mTORC1 and mTORC2 signaling. The median plasma drug concentration with OSI-027 is 21.3 μM at 2 hours and 14.9 μM at 8 hours. The in vivo efficacy of OSI-027 plus Sunitinib is tested in H292 human lung and Ovcar-5 human ovarian xenograft tumors. H292 tumors, treated with OSI-027 (50 mg/kg) for 21 days have 61% median tumor growth inhibition for the duration of treatment (TGI). Sunitinib (40 mg/kg) for 21 days had 47% median TGI. Combining OSI-027 with Sunitinib, however, has a median TGI of 100% with 59% maximal tumor regression, a statistically significant improvement over either agent alone. Ovcar-5 xenograft tumors treated with OSI-027 or Sunitinib have a 55% and 68% median TGI, respectively. OSI-027 administered with Sunitinib has a significantly better median TGI of 100% with 38% maximal tumor regression. In the Rapamycin (RAPA) group, three rats exhibit symptoms typical of LTx-aGVHD and die 27 to 35 days after liver transplantation (LT); the remaining five r |
| 參考文獻(xiàn)： |
1. Falcon BL, et al. Reduced VEGF production, angiogenesis, and vascular regrowth contribute to the antitumor properties of dual mTORC1/mTORC2 inhibitors. Cancer Res. 2011 Mar 1;71(5):1573-83. 2. Mateo J, et al. A first in man, dose-finding study of the mTORC1/mTORC2 inhibitor OSI-027 in patients with advanced solid malignancies. Br J Cancer. 2016;114(8):889-896. 3. Zhang Y, et al. PP2AC Level Determines Differential Programming of p38-TSC-mTOR Signaling and Therapeutic Response to p38-Targeted Therapy in Colorectal Cancer. EBioMedicine. 2015 Nov 19;2(12):1944-56. 4. Zhi X, et al. OSI-027 modulates acute graft-versus-host disease after liver transplantation in a rat model. Liver Transpl. 2017 Sep;23(9):1186-1198. |
| 溶解性： |
DMSO : 125 mg/mL (307.55 mM; Need ultrasonic) |
| 保存條件： |
-20℃ |
| 配置溶液濃度參考： |
|
1mg |
5mg |
10mg |
| 1 mM |
2.46 ml |
12.302 ml |
24.603 ml |
| 5 mM |
0.492 ml |
2.46 ml |
4.921 ml |
| 10 mM |
0.246 ml |
1.23 ml |
2.46 ml |
| 50 mM |
0.049 ml |
0.246 ml |
0.492 ml |
|
| 注意： |
部分產(chǎn)品我司僅能提供部分信息，我司不保證所提供信息的權(quán)威性，僅供客戶參考交流研究之用。 |
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