Why is renal cell carcinoma (RCC) refractory to most chemotherapeutic agents?

Updated: Feb 19, 2021
  • Author: Kush Sachdeva, MD; Chief Editor: E Jason Abel, MD  more...
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RCC is refractory to most chemotherapeutic agents because of multidrug resistance mediated by p-glycoprotein. Normal renal proximal tubules and RCC both express high levels of p-glycoprotein. Calcium channel blockers or other drugs that interfere with the function of p-glycoprotein can diminish resistance to vinblastine and anthracycline in human RCC cell lines.

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