中文名称: b-AP15
英文名称: b-AP15
CAS No: 1009817-63-3
分子式: C22H17N3O6
分子量: 419.39
EINEC: 687852
A11276 b-AP15 ≥98% (psaitong)
包装规格:
5mg 25mg 100mg in glass bottle
溶解性:
溶于DMSO(33.33 mg/mL 超声)
产品描述:

基本信息

产品编号:

A11276

产品名称:

b-AP15

CAS:

1009817-63-3

 

储存条件

粉末

-20℃

四年

 

 

分子式:

C22H17N3O6

溶于液体

-80℃

两年

分子量

419.39

 

 

化学名: 

(3E,5E)-3,5-bis[(4-nitrophenyl)methylidene]-1-prop-2-enoylpiperidin-4-one

Solubility (25°C):

 

体外:

 

DMSO

48mg/mL warmed with 50ºC water bath(114.45mM)

Ethanol

Insoluble

Water

Insoluble

体内(现配现用):

1.请依序添加每种溶剂:10% DMSO40% PEG3005% Tween-8045% saline,Solubility: 2.08mg/mL (4.96mM); Suspended solution; Need ultrasonic

此⽅案可获得2.08mg/mL(4.96mM)的均匀悬浊液,悬浊液可⽤于⼝服和腹腔注射。以1mL⼯作液为例,取100μL20.8mg/mL的澄清DMSO储备液加到400μLPEG300中,混合均匀;向上述体系中加⼊50μLTween-80,混合均匀;然后继续加⼊450μL⽣理盐⽔定容⾄1mL。

1mg/ml表示微溶或不溶。

普西唐提供的所有化合物浓度为内部测试所得,实际溶液度可能与公布值有所偏差,属于正常的批间细微差异现象。

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;⼀旦配成溶液,请分装保存,避免反复冻融造成的产品失效。

 

制备储备液

 

浓度

 

溶液体积

质量

 

1mg

 

5mg

 

10mg

1mM

2.3844mL

11.9221mL

23.8442mL

5mM

0.4769mL

2.3844mL

4.7688mL

10mM

0.2384mL

1.1922mL

2.3844mL

50mM

0.0477mL

0.2384mL

0.4769mL

 

生物活性

产品描述

特异性抑制去泛素化酶 (deubiquitinating) UCHL5 和 Usp14活性。

靶点

USP14 

UCHL5

2.1μM

体外研究

b-AP15抑制两种19S调节颗粒相关的去泛素化酶,泛素C-末端水解酶5(UCHL5)和泛素特异性肽酶14(USP14),导致多聚泛素的积累。b-AP15导致UbG76V-YFP受体累积, IC50为0.8μM, 这种作用存在剂量依赖性,说明损伤的蛋白酶体降解受损。b-AP15 (1μM)作用于人类结肠癌HCT-116细胞,导致多聚泛素化蛋白快速累积。b-AP15(2.2μM)作用于HCT-116细胞,提高细胞周期蛋白依赖性激酶CDKN1A和CDKNIB,及肿瘤抑制基因TP53的数量,这种作用存在剂量依赖性,但不改变鸟氨酸脱羧酶1(ODC1)的数量。b-AP15(1μM)作用于HCT-116细胞,导致细胞周期停滞在G2/M期,相应地,导致细胞周期抑制剂累积。b-AP15处理提高亚二倍体细胞的数量,并相应地增加,细胞凋亡标记的数量,包括活化的caspase-3,caspase裂解的多聚ADP核糖聚合酶(PARP)和细胞角蛋白-18(CK18)。与永生化上皮细胞(hTERT-RPE1)或外周血单核细胞相比,b-AP15对HCT-116细胞毒性更大。b-AP15抑制去泛素活性,使用各种底物,包括Ub-AMC, Ub-GFP22, 泛素化p53-结合蛋白同源物(HDM2), 及K48-和K63-连接的泛素四聚体链。b-AP15是UPS抑制剂,通过诱导cathepsin-D依赖性的溶酶体凋亡途径而诱导细胞死亡。b-AP15引出特征性的UPS缺陷,包括泛素偶联物,细胞周期抑制剂,如p21,p27,和肿瘤抑制基因p53的积累。b-AP15抑制半胱氨酸DUBs,的去泛素化酶活性,USP14稍微比UCHL5敏感。b-AP15作用于过量表达抗凋亡Bcl-2蛋白的细胞和缺乏p53基因的细胞,诱导细胞凋亡。b-AP15 (1μM) 抑制ATP诱导的IL-1β从LPS诱导的腹腔巨噬细胞中释放。b-AP15(1μM)作用于THP-1细胞,降低Nigericin处理诱导的细胞死亡水平。b-AP15(1μM)处理LPS诱导的THP-1细胞,显著降低Nigericin处理后形成的ASC斑点数量。

体内研究

b-AP15 (5mg/kg)处理携带鳞状细胞癌移植瘤的重症联合免疫缺陷(SCID)小鼠,具有显著的抗肿瘤活性。b-AP15(5mg/kg)处理携带HCT-116结肠癌移植瘤的小鼠,显著延缓肿瘤发病。

特征

b-AP15不是一般的去泛素化酶抑制剂,对重组和胞浆非蛋白酶体半胱氨酸去泛素化酶具有最低抑制效果。 

 

推荐实验方法(仅供参考)

Kinase Assay

For deubiquitinase inhibition assays, 19S regulatory particle (5nM), 26S (5nM) UCH-L1 (5nM), UCH-L3 (0.3nM), USP2CD (5nM) USP7CD (5nM) USP8CD (5nM) or BAP1 (5nM) is incubated with DMSO or b-AP15 and monitored the cleavage of ubiquitin-AMC (1,000nM) using a Wallac VICTOR Multilabel counter or a Tecan Infinite M1000 equipped with 380nM excitation and 460nM emission filters

Cell Assay

Cell viability is monitored by either the fluorometric microculture cytotoxicity assay or the MTT assay. For the MTT assay, cells are seeded into 96-well flat-bottomed plates overnight and exposed to drugs, using DMSO as the control. At the end of incubations, 10 µl of a stock solution of 5mg/mL MTT is added into each well, and the plates are incubated 4 hours at 37°C. Formazan crystals are dissolved with 100 µL 10% SDS/10 mM HCl solution overnight at 37°C. Absorbance is measured using an enzyme-linked immunosorbent assay (ELISA) plate reader at 590nM

Animal Administration

Mice

For the squamous carcinoma model, 1×106 FaDu cells are subcutaneously injected into the right rear flank of female SCID mice. Tumor growth is measured by the formula length×width2×0.44. When tumors have grown to a size of approximately 200 mm3 (defined as day 0), mice are randomized to receive either vehicle (n=10) or b-AP15 (n=15) at 5mg per kg of body weight by daily subcutaneous injection. For the colon carcinoma model, we subcutaneously injected 2.5×106 HCT-116 colon carcinoma cells overexpressing Bcl2 into the right flank of female nude mice. We treated mice with 5mg of b-AP15 per kg of body weight by intraperitoneal injection. For the lung carcinoma model, we subcutaneously injected 2×105 LLC cells into the right rear flank of female C57/B6 mice. When tumors had grown to a size of approximately 50 mm3 (defined as day 0), we randomized mice to receive either vehicle (n=4) or b-AP15 (n=4) at 5mg per kg of body weight intraperitoneally, with a treatment cycle consisting of 2 d of treatment followed by 2 d of rest (2 d on, 2 d off) for 2 weeks.

保存条件:
-20℃
UN码:
HazardClass:
危害声明:
安全说明:
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