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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Inhibition of P-glycoprotein-mediated multidrug resistance and STAT3 signaling pathway through polymeric conjugates bearing protease inhibitor derivatives
 Starenko, Daniil ; Kovář, Marek (advisor) ; Truksa, Jaroslav (referee)
Tumor cells expressing high levels of some ABC transporters (mainly P-glycoprotein) can become resistant to many structurally and functionally different drugs. Such multidrug resistance can be a significant barrier for a successful chemotherapy of malignant diseases. There is a considerable amount of small-molecular-weight compounds capable of potent inhibition of P-glycoprotein, but none of them are approved for the clinical use. STAT3 is a transcription factor important for many physiological processes, but its constitutive activation may lead to the malignant transformation and chemotherapy resistance in tumor cells. This molecule is thus potential target for anticancer drugs. The inhibition of STAT3 signaling should lead to lower cancer cell proliferation and their increased susceptibility to induction of apoptosis. Considerable attention is given to increase the effectiveness and to lower the adverse effects of conventional cytostatic agents via using nanomaterials and drug delivery systems in the research of new cancer therapy approaches. Polymeric carriers based on N-(2-hydroxypropyl)methacrylamide (HPMA) copolymers are promising candidates in this field. The main aim of this diploma thesis was to evaluate the effectiveness of several HIV protease inhibitor (ritonavir, lopinavir, indinavir,...
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