Ko 143是高活性乳腺癌耐药蛋白多药转运通道（BCRP）抑制剂，EC90为26 nM，比对 P-gp和MRP-1转运通道的抑制性高200倍以上。A selective BCRP multidrμg transporter inhibitor Ko 143 is a potent and selective breast cancer resistance protein multidrug transporter (BCRP) inhibitor (EC90 = 26 nM), Ko 143 displays > 200-fold selectivity over P-gp and MRP-1 transporters. A selective BCRP multidrug transporter inhibitor