The decreased chemotherapeutic efflux and resulting increased cellular concentration of chemotherapeutics in the presence of the P-glycoprotein inhibitor 29 was in turn associated with decreased cancer cell viability (Fig 2), decreased cancer cell survival (Fig 3), and decreased cancer cell motility (Fig 4), while simultaneously evidence of cell death via apoptosis increased (Fig 5). Here, ABCB1 is linked to cancer.