生物活性 | |||
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靶点 |
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描述 | There are 18 mammalian HDACs, HDAC 1 - 11 and sirt 1 - 7. One of the member, HDAC6 can target specific substrates like HSP90 andα-tubulin which involve in protein trafficking and degradation or cell shape and migration, thus participates in the pathways relating to neurodegenerative diseases, cancer, and immunology[1]. ACY-1215, also called Rocilinostat, is a potent and selective HDAC6 inhibitor with IC50 value of 4.7 nM (measured by HDAC enzymatic assays), while exhibits minimal inhibition on HDAC4, HDAC5, HDAC7, HDAC9, HDAC11, Sirtuin1, and Sirtuin2 (IC50 > 1 μM) and slightly inhibits HDAC8 (IC50 = 0.1 μM). A dose-dependent increased acetylatedα-tubulin and no affecting acetylation of histones can be observed in MM.1S cells with treatment of ACY-1215 for 6 hours, which confirming the selective inhibition of ACY-1215 on low dose (0.62 μM). ACY-1215 (0 - 4 μM) in combination with bortezomib (0 - 5 nM) for 24 and 48 hours in MM.1S cells and for 48 hours in RPMI8226 cells induce synergistic anti-MM activity. This may due to ACY-1215 disrupting aggresome formation with increased levels of polyubiquitinated protein, then triggers the apoptosis by the induction of ER stress and UPR. And a significant therapeutic advantage was found by combining ACY-1215 (50 mg/kg, IP) with bortezomib (0.5 mg/kg, IV) compared with either agent alone for 3 weeks, which echoes the synergistic activity cellar study[2]. ACY-1215 alone/ in combination with dexametrasone and either bortezomib or lenalidomide is currently under phase I, II clinical trials for multiple myeloma[3]. | ||
作用机制 | ACY-1215 can monodentate Zn2+ of HDAC6 through its phenylhydroxamate structure[4]. |
细胞研究 | |||||
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细胞系 | 浓度 | 检测类型 | 检测时间 | 活动说明 | 数据源 |
A-172 | 10 nM | Growth Inhibition Assay | 24/48 h | inhibits cell growth time dependently | 26150340 |
CCL-119 | Growth Inhibition Assay | 48 h | IC50=1.7 μM | 26116270 | |
H9 | Growth Inhibition Assay | 48 h | IC50=1.2 μM | 26116270 |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
2.31mL 0.46mL 0.23mL |
11.53mL 2.31mL 1.15mL |
23.07mL 4.61mL 2.31mL |
参考文献 |
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