ABCG2是A11P结合盒(ABC)转运超家族中的一员,其过表达被认为是限制多种化疗药物在细胞内聚集的重要机制之一。ABCG2底物范围广泛,包括多种抗肿瘤药物和环境致癌物等,与肿瘤的多药耐药(MDR)和肿瘤发展有关。以ABCG2为靶点逆转MDR受到广泛关注。
ABCG2 is a member of the ATP-binding cassette (ABC) transporter family. The overex- pression of ABCG2 is identified as one of the important mechanisms that limiting cellular accumulation of vari- ous compounds. With regard to its broad substrate spectrum including various anticancer drugs and environmen- tal carcinogens, the function of ABCG2 is associated with muhidrug resistance (MDR) and tumor development. ABCG2 as a target site to reverse MDR has been widely concered.