AT406
Cat.No:IA2560 Solarbio
CAS:1071992-99-8
Storage:Powder:2-8℃,2 years;Insolvent(Mother Liquid):-20℃,6 months;-80℃,1 year
Purity:≥98%
Appearance:White to off-white Solid
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AT406CAS:1071992-99-8
Storage:Powder:2-8℃,2 years;Insolvent(Mother Liquid):-20℃,6 months;-80℃,1 year
Purity:≥98%
Appearance:White to off-white Solid
Qty:
Size:
CAS | 1071992-99-8 |
Name | AT406 |
Molecular Formula | C32H43N5O4 |
Molecular Weight | 561.71 |
Solubility | Soluble in DMSO |
Purity | ≥98% |
Appearance | White to off-white Solid |
Storage | Powder:2-8℃,2 years;Insolvent(Mother Liquid):-20℃,6 months;-80℃,1 year |
MDL | MFCD22124467 |
SMILES | O=C([C@@H]1CC[C@@](CCN(C(CC(C)C)=O)C[C@@H]2NC([C@@H](NC)C)=O)([H])N1C2=O)NC(C3=CC=CC=C3)C4=CC=CC=C4 |
Target Point | IAP |
Passage | Apoptosis |
Background | AT406 is a novel, potent Smac/DIABLO mimetic, an antagonist of IAP |
Biological Activity | Xevinapant (AT406, ARRY-334543, Debio1143, SM-406)是一种有效的,拟Smac的IAP(通过E3泛素连接酶起作用的凋亡蛋白抑制剂)拮抗剂,与XIAP-BIR3, cIAP1-BIR3和cIAP2-BIR3结合,Ki为66.4 nM, 1.9 nM和5.1 nM,比作用于Smac AVPI肽亲和力高50到100倍。[1] |
In Vitro | AT-406是一种Smac模拟物,在氢键结合以及与XIAP的疏水性相互作用中,似乎能够很接近地模拟AVPI多肽,伴随额外的与XIAP的W323疏水性接触。AT-406对这些IAPs比对Smac AVPI多肽更敏感,具有50-100倍的结合亲和力。AT-406(1 μM)完全恢复caspase-9的活性,其在无细胞体系中被500 nM XIAP BIR3抑制。在MDA-MB-231细胞中,AT-406诱导快速的细胞cIAP1降解,并摧毁细胞XIAP蛋白。AT-406有效抑制大量人癌症细胞系,在MDA-MB-231细胞和SK-OV-3卵巢癌细胞中,IC50分别为144和142 nM,对正常人乳腺样上皮MCF-12F细胞和初级人正常前列腺上皮细胞具有低毒性。在MDA-MB-231细胞中,AT-406通过诱导caspase-3活化和PARP裂解,诱导细胞凋亡。[1] |
In Vivo | AT-406在小鼠,大鼠,非灵长类动物,和狗体内具有良好的药代动力学(PK)性能和口服生物利用度。在MDA-MB-231异种移植物中,AT-406有效诱导肿瘤组织中cIAP1降解和半胱天冬酶-8的加工,以及PARP的裂解,在100 mg/kg,甚至200 mg/kg剂量下具有良好的耐受性。AT-406诱导显著的肿瘤生长抑制,100 mg/kg下P为0.0012。[1] |
Cell Experiment | Animal Models: 负荷MDA-MB-231 异种移植瘤的严重联合免疫缺陷(SCID)小鼠; Dosages: 10 mg/kg(i.v.),10 mg/kg(p.o.),30 mg/kg(p.o.)和 100 mg/kg(p.o.); Administration: 静脉注射(i.v.)或 口服(p.o.)给药[1] |
Animal Experiment | 细胞以(3-4)×103细胞/孔的密度与AT-406接种在96孔平底细胞培养板,并培育4天。不同浓度AT-406处理后的细胞生长抑制率通过(2-(2-甲氧基-4-硝基苯基)-3-(4-硝基苯基)-5-(2,4-二磺苯基)-2H-四唑谷氨酸盐(WST-8)分析测定。将WST-8加入每孔,终浓度为10%,然后板在37 °C下培育2-3小时。样品吸光度在450 nm下使用TECAN ULTRA阅读器测量。抑制50%细胞生长的AT-406浓度(IC50)通过比较未处理细胞和AT-406处理细胞的吸光度计算。[1] |
Kinase Experiment | FL-AT-406(荧光标记的AT-406)用于开发一组新的FP试验,用于测定Smac模拟物对XIAP,cIAP-1,和cIAP-2 BIR3蛋白质的结合亲和力。FL-AT-406对每种IAP蛋白质的Kd值通过滴定实验使用固定浓度的FL-AT-406和不同浓度直到饱和的蛋白质进行测定。荧光偏振值使用Infinite M-1000酶标仪在Microfluor296孔,黑色,圆底板中测量。对每个孔,加入FL-AT-406(对XIAP BIR3,cIAP-1 BIR3,和cIAP-2 BIR3的实验分别为2,1,和1 nM)和不同浓度的蛋白质,在测定缓冲液(100 mM磷酸钾,pH 7.5,100 μg/mL牛γ-球蛋白,0.02%叠氮化钠,和4% DMSO)中终体积为125 μL。将板混合,并在室温下温和摇晃培育2-3小时。毫极化单元(mP)中的偏振值在485 nm激发波长和530 nm发射波长下测量。随后,平衡解离常数(Kd)使用Graphpad Prism 5.0软件,根据蛋白质浓度对剂量依赖性FP的增加通过S形曲线拟合进行计算。在XIAP3 BIR3的竞争性结合实验中,AT-406与20 nM XIAP BIR3蛋白质和2 nM FL-AT-406在试验缓冲液(100 mM磷酸钾,pH 7.5;100 μg/mL 牛γ-球蛋白;0.02% 叠氮化钠)中进行培育。在cIAP1 BIR3蛋白质竞争性结合实验中,使用3 nM蛋白质和1 nM FL-AT-406。对于cIAP2 BIR3竞争性结合实验,使用5 nM蛋白质和1 nM FL-AT-406。对每个竞争性结合实验,偏振值在培育2-3小时之后使用Infinite M-1000酶标仪测量。IC50值,50%结合示踪物被取代时的抑制剂浓度,根据绘图使用非线性最小二乘法分析计算。[1] |
Data Literature Source | [1] Cai Q,et al. J Med Chem,2011,54(8),2714-2726. |
Unit | Bottle |
Specification | 5mg 10mg |
是一种新型,有效的Smac/DIABLO模拟物,是IAP的拮抗剂
Remark:These protocols are for reference only. Solarbio does not independently validate these methods.
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