Entinostat
Cat.No:IE0690 Solarbio
CAS:209783-80-2
Molecular Formula:C21H20N4O3
Molecular Weight:376.41
Storage:Powder:-20℃,2 years;Insolvent(Mother Liquid):-20℃,6 months;-80℃,1 year
Purity:≥98%
Appearance:White to yellow Solid
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EntinostatCAS:209783-80-2
Molecular Formula:C21H20N4O3
Molecular Weight:376.41
Storage:Powder:-20℃,2 years;Insolvent(Mother Liquid):-20℃,6 months;-80℃,1 year
Purity:≥98%
Appearance:White to yellow Solid
Qty:
Size:
CAS | 209783-80-2 |
Name | Entinostat |
Molecular Formula | C21H20N4O3 |
Molecular Weight | 376.41 |
Solubility | Soluble in DMSO ≥5mg/mL |
Purity | ≥98% |
Appearance | White to yellow Solid |
Storage | Powder:-20℃,2 years;Insolvent(Mother Liquid):-20℃,6 months;-80℃,1 year |
MDL | MFCD08272435 |
SMILES | O=C(NCC1=CC=C(C=C1)C(NC2=CC=CC=C2N)=O)OCC3=CC=CN=C3 |
InChIKey | INVTYAOGFAGBOE-UHFFFAOYSA-N |
InChI | InChI=1S/C21H20N4O3/c22-18-5-1-2-6-19(18)25-20(26)17-9-7-15(8-10-17)13-24-21(27)28-14-16-4-3-11-23-12-16/h1-12H,13-14,22H2,(H,24,27)(H,25,26) |
PubChem CID | 4261 |
Target Point | HDAC |
Passage | DNA Damage/DNA Repair;Epigenetics;NF-κB |
Background | Entinostat is a selective HDAC class I inhibitor. |
Biological Activity | Entinostat 选择性,可口服的 HDAC class I 抑制剂,抑制 HDAC1,HDAC2 和 HDAC3 的 IC50 分别为 243 nM,453 nM 和 248 nM。[1-4] |
IC50 | HDAC1:243nM;HDAC3:248nM;HDAC2:453nM [1-4] |
In Vitro | Entinostat对HDAC1和HDAC2的结合亲和力分别为282 nM和156 nM [1]。已经在人白血病和淋巴瘤细胞(U937,HL-60,K562和Jurkat)以及与分化和凋亡相关的原代急性髓性白血病母细胞中检测了HDAC抑制剂Entinostat(MS-275)的作用。 MS-275在每种细胞系中显示剂量依赖性效应。当以低浓度(例如,1μM)施用时,MS-275表现出有效的抗增殖活性,诱导p21CIP1/WAF1介导的生长停滞和U937细胞中分化标志物(CD11b)的表达。 Entinostat(MS-275)有效诱导细胞死亡,48小时内约70%的细胞引发细胞凋亡[2]。 |
In Vivo | 49mg/kg的Entinostat显示出针对KB-3-1,4-1St和St-4肿瘤系的显著抗肿瘤作用,并且对Capan-1肿瘤具有中等作用。 24.5mg/kg和12.3mg/kg的Entinostat也显示出对这些肿瘤的显著作用。此外,口服Entinostat显著增加了给药后4-24小时HT-29肿瘤异种移植物中组蛋白乙酰化的水平[3]。 MS-275给予实验性自身免疫性神经炎(EAN)大鼠每天一次出现第一次神经系统体征,大大降低了EAN的严重程度和持续时间,减弱了巨噬细胞,T细胞和B细胞的局部积聚,以及脱髓鞘坐骨神经此外,在MS-275处理的EAN大鼠的坐骨神经中观察到促炎性白细胞介素-1β,干扰素-γ,白细胞介素-17,诱导型一氧化氮合酶和基质金属蛋白酶-9的mRNA水平的显著降低。此外,MS-275处理增加了EAN大鼠坐骨神经中渗入的Foxp3 +细胞和抗炎M2巨噬细胞的比例[4]。 |
Cell Experiment | 将SH-SY5Y细胞维持在正常培养条件下,在37℃,5%CO 2的潮湿培养箱中,每周分开两次。将细胞以2500个细胞/孔接种在黑色384孔板中,在20-μL体积的补充有10%FBS的DMEM/F-12培养基中,并使其粘附过夜。第二天,将HDAC抑制剂(例如,Entinostat)在100%DMSO中连续稀释,随后将该系列交叉稀释到培养基中。将在培养基中稀释的5μL化合物(例如,Entinostat)加入到细胞板的适当孔中,以提供指示的最终浓度的抑制剂(例如,Entinostat)和最终的0.1%DMSO。在定量细胞ATP水平之前,将处理过的细胞在正常组织培养条件下孵育6,24,48,72或96小时,如使用CellTiter-Glo试剂测量的。类似地,在与HDAC抑制剂(例如,Entinostat)温育6小时后,吸出来自分开的细胞板的培养基,并用不含抑制剂的培养基洗涤细胞一次。将补充有10%FBS和0.1%DMSO(无抑制剂)的25μL培养基加回细胞,并在孵育24,48,72或96小时后使用CellTiter-Glo测定细胞ATP水平[1]。 |
Animal Experiment | 将小鼠[3] A2780细胞(9×106)悬浮于PBS中,并皮下注射到裸鼠的侧腹中。对于其他肿瘤系,KB-3-1,HCT-15,4-1St,Calu-3,St-4,Capan-1和HT-29,肿瘤在开始体内抗肿瘤测试前传代数次,并且通过使用套管针将肿瘤块(直径2-3mm)皮下移植到裸鼠的侧腹中。在确认肿瘤在体内生长(肿瘤大小,20-100mm 3)后,开始用药物治疗(每个实验组中有4或5只小鼠)。Entinostat每周口服给药一次,每周5天,持续4周。每周监测肿瘤长度和宽度两次,并计算肿瘤体积。大鼠[4]雄性Lewis大鼠(8-10周,170-200g)在12小时光照/黑暗循环下饲养,自由获取食物和水。对于治疗性治疗,EAN大鼠从第10天至第14天(6只大鼠/组)每天腹膜内注射MS-275(3.5mg/kg)。对于注射,将MS-275悬浮在磷酸盐缓冲盐水(PBS)中,并将相同体积(1mL)的PBS给予对照大鼠。 |
Kinase Experiment | 通过Nanosyn在384孔微量培养板中以10μL的反应体积进行HDAC活性的生化测定。标准酶促反应含有5μL2×HDAC抑制剂(如Entinostat),4μL2.5×酶和1μL10×底物的分析缓冲液(100 mM HEPES,pH 7.5,25 mM KCl,0.1%BSA),0.01%Triton X-100,1%DMSO)。酶促测定中所有HDAC的最终浓度为0.5至5nM。在所有测定中使用1μMFAM-RHKK(Ac)-NH2或FAM-RHKK(三氟乙酰基)-NH2的最终底物浓度,发现低于每种酶的测定Km,app [1]。 |
Data Literature Source | [1]. Lauffer BE,et al. Histone deacetylase (HDAC) inhibitor kinetic rate constants correlate with cellular histone acetylation but not transcription and cell viability. J Biol Chem. 2013 Sep 13;288(37):26926-43. [2]. Rosato RR,et al. The histone deacetylase inhibitor MS-275 promotes differentiation or apoptosis in human leukemia cells through a process regulated by generation of reactive oxygen species and induction of p21CIP1/WAF1 1. Cancer Res. 2003 Jul 1;63(13):36 [3]. Saito A,et al. A synthetic inhibitor of histone deacetylase,MS-27-275,with marked in vivo antitumor activity against human tumors. Proc Natl Acad Sci U S A,1999,96(8),4592-4597. [4]. Zhang ZY,et al. MS-275,an histone deacetylase inhibitor,reduces the inflammatory reaction in rat experimental autoimmune neuritis. Neurosci,2010,169,370-377. |
Unit | Bottle |
Specification | 10mg 50mg 100mg |
Entinostat 选择性的 HDAC class I 抑制剂,。
Remark:These protocols are for reference only. Solarbio does not independently validate these methods.
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