生物活性 | |||
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描述 | Apelin, a circulating peptide hormone, is synthesized and secreted by a variety of cell types including those of the cardiovascular, endocrine, gastrointestinal and nervous systems. Apelin was recently identified as the endogenous ligand of the APJ, a formerly orphaned G-protein coupled receptor (GPCR) with a similarly broad distribution of expression[1]. ML221 is a potent apelin receptor (APJ) antagonist with IC50s of 0.70 μM and 1.75 μM in cAMP and β-arrestin assay respectively[2]. Cholangiocarcinoma (CCA) cell line HuH-28 treated with 10 μM of ML221 for 24 h showed significant decreased expression of Ki-67, as well as VEGF-A, VEGF-C, Ang-1 and Ang-2, while these were not observed in SG231 cells. CCA xenograft tumors in mice were treated with ML221 (150 μg/kg) for 3× weekly via tail vein injection for 4 weeks, and tumor volumes were significantly smaller compared to those in the untreated control mice[3]. |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
2.60mL 0.52mL 0.26mL |
12.98mL 2.60mL 1.30mL |
25.95mL 5.19mL 2.60mL |
参考文献 |
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