Studium vlivu vybraných cílených léčiv na lékovou rezistenci zprostředkovanou ABC lékovými transportéry

Paulusová, Viktória

Charles University Faculty of Pharmacy in Hradec Králové Department of Pharmacology & Toxicology Student: Viktória Paulusová Supervisor: doc. RNDr. Jakub Hofman, Ph.D. Title od diploma thesis: Study on the effect of selected targeted drugs on drug resistance mediated by ABC drug transporters. Multidrug resistance (MDR) is one of the major problems associated with cancer treatment. A key determinant of MDR is increased efflux of drugs through membrane ATP- binding cassette (ABC) transporters, which are a family of transporter proteins. Their overexpression contributes to MDR by decreasing intracellular drug concentration due to the efflux of various drugs from cells. Targeting ABC transporters appears to be a promising approach to suppress drug resistance. Therefore, one strategy to reverse the resistance of ABC transporter-expressing tumor cells is the combined use of chemotherapeutic drugs with ABC transporter modulators to enhance therapeutic efficacy. The aim of this work was to investigate the effect of targeted drugs (capmatinib, pralsetinib and tazemetostat) in combination with cytostatics (etoposide and topotecan) on drug resistance mediated by ABC efflux transporters. Results were obtained using MTT assays and caspase activity assays performed on the parental A431 cell line and its...

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