生物活性 | |||
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靶点 |
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描述 | Aromatase is the only enzyme in vertebrates known to catalyse the biosynthesis of all oestrogens from androgens[3]. Anastrozole as an achiral triazole derivative is an aromatase inhibitor with IC50 value of 15 nM. Anastrozole has been shown to possess superior efficacy and tolerability over established endocrine agents in advanced breast cancer[4]. In vitro, anastrozole markedly inhibited breast cancer cell line MCF-7 cell proliferation at concentration ranging in 15 – 80 nM[5]. Administration of 1 μM anastrozole for 24h reduced mouse mammary carcinoma derived FM3A cell viability[6]. Treatment with 200 mg/mL and 300 mg/mL anastrozole significantly inhibited the growth of endometrioma cells and estradiol secretion[7]. In vivo, treatment with anastrozole on the dose of 200 μg/kg once a day established to be maximally effective in reducing tumor growth in the mouse intratumoral aromatase xenograph model[8]. Administration of 0.1 mg/kg anastrozole completely blocked ovulation and extinguished the uterotrophic activity of exogenous androstenedione in immature rats[9]. Treatment with anastrozole 1 or 10 mg reduced the percentage aromatization from 2.25% to 0.074% and 0.043% in post-menopausal women with a diagnosis of advanced or recurrent[10]. |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
3.41mL 0.68mL 0.34mL |
17.04mL 3.41mL 1.70mL |
34.09mL 6.82mL 3.41mL |
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