Cyproterone acetate, 98%, an androgen receptor (AR) antagonist,环丙孕酮醋酸盐 , 98% , 一种雄激素受体拮抗剂
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环丙孕酮醋酸盐 , 98% , 一种雄激素受体拮抗剂
Cyproterone acetate, 98%, an androgen receptor (AR) antagonist
品牌: J&K
产品编号: 410760
分子式: C24H29ClO4
分子量: 416.94
纯度: 98%
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基本信息

英文别名6-Chloro-1β,2β-dihydro-17-hydroxy-3′H-cyclopropa(1,2)-pregna-1,4,6-triene-3,20-dione acetate
中文别名醋酸环丙孕酮, 醋酸环丙氯地孕酮
[a]20D+148.0° to +156.0° (C=1, CHCl3)
MDL编码MFCD00864671
Reaxys-RN (Beilstein)2342172
Merck Index2774
EC No.207-048-3

安全信息

存储条件Freezer -20℃
Symbolimageimage
Signal WordWarning
Hazard StatementsH312 H332 H351
Precautionary StatementsP280 P317 P321 P501 P261 P271 P203 P318 P405 P302+P352 P362+P364 P304+P340
WGK Germany3
RTECSGZ2230000

化学和物理性质

MP206.0-211.0

产品描述

产品描述

Cyproterone Acetate是雄激素受体拮抗剂,IC50为7.1 nM,也是微弱的孕激素受体激动剂,具有微弱的孕激素和糖皮质激素活性。

靶点(IC50 & Targe)

Androgen Receptor,7.1nM

体外研究

Cyproterone acetate具有显著的拮抗性能,也具有部分激活剂特性,在浓度相对较高时激活AR, EC50为4.0 μM。[1] 在10 nM 睾丸激素存在时,低浓度Cyproterone acetate抑制T-刺激的3XHRE-LUC转录,但是高浓度时刺激转录。[2]

体内研究

Cyproterone acetate作用于生殖器官对重量有直接的负面影响,且显著降低精子数量和 Ca2+含量。 Cyproterone acetate处理的大鼠中,SOD和GST活性显著降低,NO显著提高, MDA含量反应睾丸的氧化状态。[3]Cyproterone acetate处理,再加上在秋季认为延长白天,对精子活力和形态产生负影响。[4] Cyproterone acetate处理的雄激素受体优先降低睾丸中精细胞鱼精蛋白水平,也降低核染色质浓缩中涉及的精子水平。[5]

激酶实验

AR and ERα CALUX bioassays:

U2-OS cells are transfected with 3× HRE-TATA-Luc and pSG5-neo-hAR, using calcium phosphate precipitation to generate AR CALUX cells. AR and ERα CALUX cells are plated in 96-well plates (6000 cells/well) with phenol red-free DF medium supplemented with 5% dextran-coated charcoal-stripped FCS (DCC-FCS) at a volume of 200 μL per well. Two days later, the medium is refreshed, and cells are incubated with human or fetal serum (0–10% v/v) or Cyproterone acetate (dissolved in ethanol or DMSO) in triplicate at a 1:1000 dilution. In case of serum incubation, final serum concentration is 10% (v/v), and lower percentages of the tested sera are supplemented with DCC-FCS. After 24 hours the medium is removed, cells are lysed in 30 μL Triton-lysis buffer and measured for luciferase activity using a luminometer for 0.1 min/well.

细胞实验

Cell lines: T47Dco人类乳腺癌细胞

Concentrations: 0-10 μM

Incubation Time: 20 小时

Method: 使用T47Dco人类乳腺癌细胞(表达约等摩尔浓度组成型产生的hPR-A 和 hPR-B)评估孕激素兴奋剂活性。使用FuGENE 6转染剂使 细胞转染瞬时PRE2-tk-LUC,PRE2-tk-LUC是一种含胸甘激酶(tk)启动子上游黄体酮/糖皮质激素/雄激素应答元件(PRE)和萤火虫LUC基因的两份复制的报告质粒。CV-1细胞共转染3XHRE-LUC,含黄体酮/糖皮质激素/雄激素应答元件, 和人类AR表达载体(pCMV5hAR3.1)的三份复制。6小时后, 移除含FUGENE 6的培养基,使用含多种浓度Cyproterone acetate的培养基取代。20小时后细胞裂解,分析上清液蛋白浓度和 LUC 活性。相对光单位(RLU) 正常化,用来衡量每孔蛋白含量的差别。测定每孔中Cyproterone acetate造成的折叠激活与乙醇处理对照组,比较两者,使用GraphPad PRISM绘制对浓度的log10的曲线图。

(Only for Reference)

动物实验

Animal Models: 阉割的雄性SD大鼠

Formulation: 乙醇

Dosages: 0.2 mg /kg/day

Administration: 皮下注射

(Only for Reference)

参考文献

[1] Sonneveld E, et al. Toxicol Sci. 2005, 83(1), 136-148.

[2] Attardi BJ, et al. Mol Cell Endocrinol. 2010, 328(1-2), 16-21.

[3] Arafa NM. Pak J Biol Sci. 2010, 13(20), 966-976.

[4] Santiago-Moreno J, et al. J Endocrinol. 2012.

[5] Aleem M, et al. Contraception. 2005, 71(5), 379-391.

参考文献