MAP855
目录号 : GC64904MAP855 是一种高效、具有选择性且口服有效的 ATP 竞争性 MEK1/2 激酶抑制剂 (MEK1 ERK2 cascade IC50=3 nM, pERK EC50=5 nM)。MAP855 对野生型和突变型 MEK1/2 具有同等的抑制作用。
Cas No.:1660107-77-6
Sample solution is provided at 25 µL, 10mM.
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MAP855 is a highly potent, selective, ATP-competitive and orally active MEK1/2 kinase inhibitor (MEK1 ERK2 cascade IC50=3 nM, pERK EC50=5 nM). MAP855 shows equipotent inhibition of wild-type and mutant MEK1/2[1].
MAP855 (compound 30) has single-digit nM inhibition of pERK and proliferation in A375 cells (pERK EC50=5 nM)[1].
MAP855 (3 mg/kg for i.v., 10 mg/kg for p.o.; single) has good oral bioavailability and medium clearance in rodents[1].MAP855 (30 mg/kg; p.o., b.i.d, 14 days) achieves comparable efficacy to trametinib dosed at the mouse MTD without any body weight loss[1].Pharmacokinetic Parameters of MAP855 in mouse, rat and dog[1]. mouse rat dog CL [mL/min*kg]323522Vss [l/kg]2.62.01.8AUC po d.n. [μM*h]0.40.61.4 Oral BAV [% F]4465100
[1]. Poddutoori R, et al. Discovery of MAP855, an Efficacious and Selective MEK1/2 Inhibitor with an ATP-Competitive Mode of Action. J Med Chem. 2022;65(5):4350-4366.
Cas No. | 1660107-77-6 | SDF | Download SDF |
分子式 | C28H23ClF2N6O3 | 分子量 | 564.97 |
溶解度 | DMSO : 100 mg/mL (177.00 mM; Need ultrasonic) | 储存条件 | Store at -20°C |
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1 mg | 5 mg | 10 mg | |
1 mM | 1.77 mL | 8.85 mL | 17.7001 mL |
5 mM | 0.354 mL | 1.77 mL | 3.54 mL |
10 mM | 0.177 mL | 0.885 mL | 1.77 mL |
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1. 首先保证母液是澄清的;
2.
一定要按照顺序依次将溶剂加入,进行下一步操作之前必须保证上一步操作得到的是澄清的溶液,可采用涡旋、超声或水浴加热等物理方法助溶。
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Discovery of MAP855, an Efficacious and Selective MEK1/2 Inhibitor with an ATP-Competitive Mode of Action
J Med Chem 2022 Mar 10;65(5):4350-4366.PMID:35195996DOI:10.1021/acs.jmedchem.1c02192.
Mutations in MEK1/2 have been described as a resistance mechanism to BRAF/MEK inhibitor treatment. We report the discovery of a novel ATP-competitive MEK1/2 inhibitor with efficacy in wildtype (WT) and mutant MEK12 models. Starting from a HTS hit, we obtained selective, cellularly active compounds that showed equipotent inhibition of WT MEK1/2 and a panel of MEK1/2 mutant cell lines. Using a structure-based approach, the optimization addressed the liabilities by systematic analysis of molecular matched pairs (MMPs) and ligand conformation. Addition of only three heavy atoms to early tool compound 6 removed Cyp3A4 liabilities and increased the cellular potency by 100-fold, while reducing log P by 5 units. Profiling of MAP855, compound 30, in pharmacokinetic-pharmacodynamic and efficacy studies in BRAF-mutant models showed comparable efficacy to clinical MEK1/2 inhibitors. Compound 30 is a novel highly potent and selective MEK1/2 kinase inhibitor with equipotent inhibition of WT and mutant MEK1/2, whose drug-like properties allow further investigation in the mutant MEK setting upon BRAF/MEK therapy.
Allosteric and ATP-Competitive MEK-Inhibition in a Novel Spitzoid Melanoma Model with a RAF- and Phosphorylation-Independent Mutation
Cancers (Basel) 2021 Feb 16;13(4):829.PMID:33669371DOI:10.3390/cancers13040829.
Spitzoid melanoma is a rare malignancy with histological characteristics similar to Spitz nevus. It has a diverse genetic background and in adults, a similarly grim clinical outcome as conventional malignant melanoma. We established a spitzoid melanoma cell line (PF130) from the pleural effusion sample of a 37-year-old male patient. We found that the cell line carries a rare MEK1 mutation (pGlu102_Lys104delinsGln) that belongs to the RAF- and phosphorylation-independent subgroup of MEK1 alternations supposedly insensitive to allosteric MEK inhibitors. The in vivo tumorigenicity was tested in three different models by injecting the cells subcutaneously, intravenously or into the thoracic cavity of SCID mice. In the intrapleural model, macroscopic tumors formed in the chest cavity after two months, while subcutaneously and intravenously delivered cells showed limited growth. In vitro, trametinib-but not selumentinib-and the ATP-competitive MEK inhibitor MAP855 strongly decreased the viability of the cells and induced cell death. In vivo, trametinib but not MAP855 significantly reduced tumor growth in the intrapleural model. To the best of our knowledge, this is the first patient-derived melanoma model with RAF- and phosphorylation-independent MEK mutation and we demonstrated its sensitivity to trametinib.