Abiraterone (Synonyms:CB-7598)
目录号 : KM14342 CAS No. : 154229-19-3 纯度 : 98%

Abiraterone 是一种有效的不可逆的 CYP17A1 抑制剂,具有抗雄激素活性,抑制细胞色素 p450 酶 CYP17 的 17α-羟化酶和 17,20-裂合酶活性,IC50 值 分别为 2.5 nM 和 15 nM.

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生物活性

Abiraterone is a potent and irreversible CYP17A1 inhibitor with antiandrogen activity, which inhibits both the 17α-hydroxylase and 17,20-lyase activity of the cytochrome p450 enzyme CYP17 with IC50s of 2.5 nM and 15 nM, respectively.

体外研究

Significant inhibition of proliferation of the AR-positive prostate cancer cell lines LNCaP and VCaP with doses of Abiraterone ≥5 μM is confirmed. Abiraterone shows IC50 values of 15 nM and 2.5 nM for the 17,20-lyase and 17α-hydroxylase (CYP17 is a bifunctional enzyme with both 17α-hydroxylase and 17,20-lyase activity). Abiraterone inhibits human 17,20-lyase and 17α-hydroxylase with IC50 of 27 and 30 nM respectively. Abiraterone inhibits recombinant human 3βHSD1 and 3βHSD2 activity with competitive Ki values of 2.1 and 8.8 μM. 10 μM Abiraterone is sufficient to completely block synthesis of 5α-dione and DHT in both cell lines.Treatment with abi significantly inhibited CRPC progression in the robustly growing subset, effectively putting a ceiling on tumor growth over 4 weeks of treatment (P<0.00001). [H]-dehydroepiandrosterone (DHEA) depletion and Δ-androstenedione (AD) accumulation are inhibited by Abiraterone in LNCaP, with an IC50<1 μM.

体内研究

The 0.5 mmol/kg/d Abiraterone treatment dose is previously shown to yield serum concentrations of about 0.5 to 1 μM. Xenograft tumor growth in the control group is widely variable, with some tumors growing slowly and only a subset of tumors exhibiting robust growth. Following i.v. administration (5 mg/kg) the clearance (Cl) and volume of distribution (Vd) are found to be 31.2 mL/min/kg and 1.97 L/kg, respectively. The AUC0-∞ (area under the plasma concentration-time curve from time zero to infinity time point) is found to be 2675 ng*h/mL. The terminal half-life (t1/2) is 0.73 h. Because of high clearance, Abiraterone (ART) is quantifiable only until 2 h following i.v. administration.

分子式
C24H31NO
分子量
349.51
CAS号
154229-19-3
中文名称
阿比特龙;坦度酮罗;阿比特伦
运输条件

Room temperature in continental US; may vary elsewhere.

储存方式
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
溶解性数据
In Vitro: 

DMF : 8.75 mg/mL (25.04 mM; Need ultrasonic and warming)

Ethanol : 5.4 mg/mL (15.45 mM; Need ultrasonic)

DMSO : 5 mg/mL (14.31 mM; Need ultrasonic)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 2.8611 mL 14.3057 mL 28.6115 mL
5 mM 0.5722 mL 2.8611 mL 5.7223 mL
10 mM 0.2861 mL 1.4306 mL 2.8611 mL
*

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。
储备液的保存方式和期限:-80°C, 6 months; -20°C, 1 month。-80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。

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科研文献
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