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ABT-546  

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包装规格：100mg in glass bottle
产品简介：一种有效的，高选择性和活性的内皮素ETA受体拮抗剂，对[125I]-内皮素-1与克隆的人ETA结合的Ki为0.46nM。ABT-546对ETA的选择性比对 ETB受体的选择性高25,000倍以上。
靶点：ETA:0.46 nM (Ki)
体外研究：ABT-546 (A-216546) effectively inhibits specific I endothelin-1 binding to endothelin ETA receptor in membranes prepared from rat pituitary MMQ cells with an IC50 value of 0.56 nM. ABT-546 is much less effective in inhibiting specific [125I]endothelin-3 binding to endothelin ETB rceptor in membranes prepared from porcine cerebellum with an IC50 value of 16,700 nM. In membranes prepared from CHO cells stably transfected with the human endothelin ETA and ETB receptors, ABT-546 again effectively inhibits specific [125I]endothelin-1 binding to endothelin ETA receptor with an IC50 value of 0.49 nM, but is less effective in inhibiting specific [125I]endothelin-3 binding to endothelin ETB receptor with an IC50 value of 15,400 nM. In isolated vessels, ABT-546 inhibits endothelin ETA receptor-mediated endothelin-1-induced vasoconstriction, and endothelin ETB receptor-mediated sarafotoxin 6c-induces vasoconstriction with pA2 of 8.29 and 4.57, respectively.
体内研究：ABT-546 (A-216546; 0-100 mg/kg; oral administration; for 1 hour or 4 hours; male Sprague-Dawley rats) treatment dose-dependently blocks endothelin-1-induced pressor response in conscious rats.
保存条件：-20℃
注意事项：1、为了您的安全和健康，请穿实验服并戴一次性手套操作。 2、以上信息仅做参考交流之用。

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