Ovarian carcinoma is one of the most serious gynecological malignancies in the world. High mortality of this cancer is mainly due to the development of multiple drug resistance to conventional treatments involving taxanes. Therefore, current research is focused on the study of new taxane-based derivatives capable to overcome known mechanisms of drug resistance. At present, there are several promising Stony Brook taxane derivatives (SB-T-taxanes), investigated in frame of efficacy, toxicity and mechanism of action. The aim of this bachelor thesis was to study changes in the expression of genes involved in the development of resistance in tissues and tumor obtained from in vivo mo- dels after the administration of derivatives SB-T-121605 compared to conventional taxane paclitaxel and non-treated models. Expression of selected ABC transporter genes (ABCB1, ABCC1 and ABCG2), taxane metabolizing enzyme genes (CYP3A11, CYP3A13 and CYP2C29) and their mouse orthologs was estimated in liver, intestinal and tumor tissue samples taken from in vivo mouse xenograft models. Tumor tissue was derivated from the highly resistant NCI/ADR-RES ovarian cancer cell line. Gene expression was determined by real-time quantitative polymerase chain reaction. Administration of the SB-T-121605 derivative led to several...
