癌症患者在接受化疗时常常产生多种药物耐药性。化疗中,这些患者的肿瘤对以前有效的药物甚至从未用过的药物产生耐药性。研究人员发现,在产生耐药性的一些(不是全部)病例中,肿瘤细胞产生了一种叫做p-糖蛋白的细胞,其在抗癌药物完成杀死肿瘤细胞之前,就把这些药物从肿瘤细胞中排出。美国图森的亚利桑那大学T.P.米勒及其同事们的最新研究提供了强有力的证 Cancer patients often have multiple drug resistance when they receive chemotherapy. In chemotherapy, the tumors of these patients develop resistance to previously validated drugs and never used drugs. Researchers have found that in some, if not all, cases of drug resistance, tumor cells produce a cell called p-glycoprotein that removes these drugs from the tumor before it can kill the tumor cells Excreted in cells. Recent research by T.P. Miller and colleagues at the University of Arizona in Tucson, USA, provides a strong evidence