生物活性 | |||
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描述 | The sterol regulatory-element binding protein (SREBPs) are critical for the production and metabolism of lipids and cholesterol, which are essential for cellular homeostasis and cell proliferation. Fatostatin was recently discovered as a specific inhibitor of SREBP cleavage-activating protein (SCAP), which is required for SREBP activation. Fatostatin possesses antitumor properties including the inhibition of cancer cell proliferation, invasion, and migration, and it arrests cancer cells in G2/M phase[3]. Fatostatin hydrobromide (125B11 hydrobromide) impairs the activation of SREBP-1 and SREBP-2. Fatostatin hydrobromide binds to SCAP (SREBP cleavage-activating protein), and inhibits the ER-Golgi translocation of SREBPs. Fatostatin hydrobromide decreases the transcription of lipogenic genes in cells. Fatostatin hydrobromide possesses antitumor properties, and lowers hyperglycemia in ob/ob mice. Fatostatin hydrobromide (0.1-1 μM; 3 days) inhibits the androgen-independent prostate cancer cell proliferation (IC50=0.1μM) in an independent of the known IGF1-signaling pathway. Fatostatin hydrobromide inhibits insulin-induced adipogenesis of 3T3-L1 cells[4]. Fatostatin hydrobromide (30 mg/kg; 150 mL; i.p.; daily for 28 days) reduces adiposity, ameliorates fatty liver by reducing triglyceride (TG) storage, and lowers hyperglycemia in ob/ob mice[5]. Fatostatin could induce ER degradation by K48-linked polyubiquitination, which was the key mechanism contributing to tamoxifen inhibition of PI3K-AKT-mTOR signalling in breast cancer[6]. |
细胞研究 | |||||
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细胞系 | 浓度 | 检测类型 | 检测时间 | 活动说明 | 数据源 |
CHO-K1 cells | Function assay | 20 h | Inhibition of SREBP2 activation expressed in CHO-K1 cells co-transfected with pSRE-Luc plasmid assessed as inhibition of luciferase expression after 20 hrs by luciferase reporter gene assay, IC50=5.6 μM | 21561152 | |
mouse hepatocytes | 1 uM | Function assay | 90 mins | Metabolic stability in mouse hepatocytes at 1 uM after 90 mins by LC-MS/MS analysis | 21561152 |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
2.66mL 0.53mL 0.27mL |
13.32mL 2.66mL 1.33mL |
26.64mL 5.33mL 2.66mL |
参考文献 |
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