ABCB1 and lung cancer: Telmisartan (7a)significantly inhibited the SP phenotype of ABCG2+ MCF-7 breast cancerand ABCC1+ A549 lung cancer cells, but only modestly affected ABCB1+A2780 V SP and IGROV-1 SP ovarian and PC3-DR and DU145-DR prostatecancer cells (Figures 6A and S64).