Comparison of the kinetics of active efflux of 99mTc-MIBI in cells with P-glycoprotein-mediated and multidrug-resistance protein-associated multidrug-resistance phenotypes.

Abstract excerpt

The overexpression of two membrane glycoproteins, P-glycoprotein and multidrug-resistance protein (MRP1) is a major cause of resistance to chemotherapeutic agents in the treatment of human cancers. Both proteins confer a similar multidrug-resistant (MDR) phenotype. 99mTc-MIBI, a myocardial imaging agent, which is also useful for the detection of a variety of tumours, has been shown to be a substrate for...

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