Masitinib mesylate,1048007-93-7

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YZ剂描述：

产品名称：Masitinib mesylate

产品别名：4-[(4-甲基-1-哌嗪基)甲基]-N-[4-甲基-3-[[4-(3-吡啶基)-2-噻唑基]氨基]苯基]-甲基磺酰基

英文别名：AB1010 mesylate;Masivet mesylate;AB-1010 mesylate;AB 1010 mesylate

靶点：PDGFR

CAS：1048007-93-7

纯度：>98%

外观：见爱必信官网

保存方法：store at -20℃ for one year（Powder）； in DMSO or others solvent store at 2-4℃ for two weeks, at -20℃ for six months.

描述：

Masitinib mesylate is a novel inhibitor for Kit and PDGFR??/?? with IC50 of 200 nM and 540 nM/800 nM, weak inhibition to ABL and c-Fms.

溶解性：DMSO: ≥ 30 mg/mL

体外研究：

Masitinib is a competitive inhibitor against ATP at concentrations ≤500 nM. Masitinib also potently inhibits recombinant PDGFR and the intracellular kinase Lyn, and to a lesser extent, fibroblast growth factor receptor 3. In contrast, masitinib demonstrates weak inhibition of Abl and c-Fms. Masitinib more strongly inhibits degranulation, cytokine production, and bone marrow mast cell migration than imatinib. In Ba/F3 cells expressing human wild-type Kit, masitinib inhibits SCF (stem cell factor)-induced cell proliferation with an IC₅₀ of 150 nM, while the IC₅₀ for inhibition of IL-3-stimulated proliferation is at approximately >10 µM. In Ba/F3 cells expressing PDGFRα, masitinib inhibits PDGF-BB-stimulated proliferation and PDGFRα tyrosine phosphorylation with IC₅₀ of 300 nM. Masitinib also causes inhibition of SCF-stimulated tyrosine phosphorylation of human Kit in mastocytoma cell-lines and BMMC. Masitinib inhibits Kit gain-of-function mutants, including V559D mutant and Δ27 mouse mutant with IC₅₀ of 3 and 5 nM in Ba/F3 cells. Masitinib inhibits the cell proliferation of mastocytoma cell lines including HMC-1α155 and FMA3 with IC₅₀ of 10 and 30 nM, respectively.
Masitinib inhibits cell growth and PDGFR phosphorylation in two novel ISS cell lines, which suggest that Masitinib displays activity against both primary and metastatic ISS cell line and may aid in the clinical management of ISS.

体内研究：

Masitinib inhibits tumour growth and increases the median survival time in Δ27-expressing Ba/F3 tumor models at 30 mg/kg, without cardiotoxicity or genotoxicity.
Masitinib (12.5 mg/kg/d, p.o.) increases overall TTP (time-to-tumor progression) compared with placebo in dogs.

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