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Charles University in Prague Faculty of Pharmacy in Hradec Králové Department of Biochemical Sciences Candidate: Bc. Pavla Martinková Supervisor: PharmDr. Anna Jirkovská, PhD. Title of diploma thesis: Antiproliferative activity of novel dexrazoxane analogues and their effect on antitumor effectiveness of anthracyclines Athracycline antibiotics (such as daunorubicin, doxorubicin or epirubicin) belong to the most common terapeutics of both solid tumors and hematological malignities. Unfortunately the serious and life-threatening adverse effect cardiotoxicity compromises their clinical usefulness. The only approved protection against anthracycline cardiotoxicity so far is dexrazoxane. Despite the outstanding cardioprotective ability, dexrazoxane use is very limited mainly due to its possible side effects. So we were directed towards synthesis of dexrazoxane analogues with better pharmacological properties. The aim of this diploma thesis was to assess the antiproliferative activity of novel analogues of both dexrazoxane (MK-15 and ES-5) and ADR-925 (JR-159 and KH- TA4) and their influence on the antiproliferative effectiveness of anthracyclines. Moreover, we aimed to study their chelating properties and their inhibition of the topoisomerase II in solution. We tested the antiproliferative activity of...