State Key Laboratory of Oncology in Southern China, Cancer center, Sun Yat-sen University, Guangzhou, 510060, China.
Curr Drug Metab. 2010 Sep;11(7):618-28. doi: 10.2174/138920010792927316.
Tyrosine kinase inhibitors (TKIs) are a new class of highly-selective and molecularly targeted anticancer agents. Most of these newly developed TKIs are hydrophobic, thus allowing them to rapidly penetrate the cell membrane to reach their specific intracellular targets. However, their therapeutic potential could be significantly hindered by the overexpression of certain ATP binding cassette (ABC) membrane transporters, which extrude hydrophobic drugs and result in cellular resistance to TKIs by tumor cells. Moreover, it has been recently demonstrated that some TKIs could upregulate ABC transporters in tumor cells, thereby effectively reducing their intracellular accumulation and antitumor efficacy. On the other hand, other TKIs were found to interact with ABC transporters and reverse multi-drug resistance (MDR) of tumor cells. In this review, the interaction of several TKIs, currently in clinical use or being developed in clinical trials, with the MDR-related ABC transporters, in particular ABCB1, ABCC1 and ABCG2, will be discussed.
酪氨酸激酶抑制剂(TKIs)是一类新型的高选择性和分子靶向抗癌药物。这些新开发的 TKIs 大多具有疏水性,因此能够迅速穿透细胞膜,到达其特定的细胞内靶点。然而,某些 ATP 结合盒(ABC)膜转运蛋白的过度表达会显著阻碍它们的治疗潜力,这些蛋白会将疏水性药物排出细胞,导致肿瘤细胞对 TKIs 产生耐药性。此外,最近的研究表明,一些 TKIs 可以上调肿瘤细胞中的 ABC 转运蛋白,从而有效地减少其细胞内积累和抗肿瘤功效。另一方面,研究还发现其他 TKIs 可以与 ABC 转运蛋白相互作用,逆转肿瘤细胞的多药耐药性(MDR)。在这篇综述中,将讨论几种目前处于临床使用或临床试验阶段的 TKIs 与与 MDR 相关的 ABC 转运蛋白(尤其是 ABCB1、ABCC1 和 ABCG2)的相互作用。