BCRP-IN-1 是一种乳腺癌耐药蛋白 (BCRP) 抑制剂，对 BCRP 外排转运蛋白的 IC50 为 0.6 μM。
BCRP-IN-1 is a breast cancer resistance protein (BCRP) inhibitor with an IC50 of 0.6 μM on BCRP efflux transporter.
BCRP-IN-1 (Compound A) shows the potency and a potent pharmacokinetic (PK) profile in rats (lower clearance [1.54 L/h/kg] and higher bioavailability [123%]). XL388 has moderate terminal elimination half-life with t1/2s of 0.9 h and 2.0 h for 2 mg/kg (iv) and 20 mg/kg (po) in rats, respectively[1].
[1]. Li Y, et al. Synthesis of a new inhibitor of breast cancer resistance protein with significantly improved pharmacokinetic profiles. Bioorg Med Chem Lett. 2016 Jan 15;26(2):551-555.
Animal experiment: | Mice[1]To determine pharmacokinetic profile of (S)-ML753286 and Ko143 in vivo, Sprague-Dawley rats are administered 2.0 mg/kg or 20 mg/kg (S)-ML753286 or 2.0 mg/kg or 50 mg/kg Ko143, formulated in 0.5% HPMC/0.2% Tween80, via iv or po, respectively. After administration of (S)-ML753286 or Ko143, blood is obtained from all animals at predose and at 0.083, 0.25, 0.5, 1, 4, 8, and 24 h postdose. Approximately 200 μL of whole blood is collected from the jugular vein catheter of each animal into tubes containing the anticoagulant dipotassium ethylenediaminetetraacetic acid (K2EDTA) and is further processed into plasma at approximately 4°C[1]. |
参考文献: [1]. Li Y, et al. Synthesis of a new inhibitor of breast cancer resistance protein with significantly improved pharmacokinetic profiles. Bioorg Med Chem Lett. 2016 Jan 15;26(2):551-555. | |
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