PT - JOURNAL ARTICLE AU - ARIANNA GELAIN AU - MATTEO MORI AU - FIORELLA MENEGHETTI AU - FEDERICA PORTA AU - LIVIA BASILE AU - GAETANO MARVERTI AU - AKIRA ASAI AU - MARIAFRANCESCA HYERACI AU - AÍDA NELLY GARCÍA-ARGÁEZ AU - LISA DALLA VIA AU - SALVATORE GUCCIONE AU - STEFANIA VILLA TI - Exploring the Biological Activity of a Library of 1,2,5-Oxadiazole Derivatives Endowed With Antiproliferative Activity AID - 10.21873/anticanres.13089 DP - 2019 Jan 01 TA - Anticancer Research PG - 135--144 VI - 39 IP - 1 4099 - http://ar.iiarjournals.org/content/39/1/135.short 4100 - http://ar.iiarjournals.org/content/39/1/135.full SO - Anticancer Res2019 Jan 01; 39 AB - Background/Aim: The identification of a series of oxadiazole-based compounds, as promising antiproliferative agents, has been previously reported. The aim of this study was to explore the SAR of newly-synthesized oxadiazole derivatives and identify their molecular targets. Materials and Methods: A small library of 1,2,5-oxadiazole derivatives was synthetized and their antiproliferative activity was tested by the MTT assay. Their interaction with topoisomerase I was evaluated and a molecular docking study was performed. Results: Several candidates showed cytotoxicity towards two human tumor cell lines, HCT-116 (colorectal carcinoma) and HeLa (cervix adenocarcinoma). Some derivatives exhibited inhibitory effects on the catalytic activity of topoisomerase I and this effect was supported by docking studies. Conclusion: The enzyme inhibition results, although not directly related to cytotoxicity, suggest that a properly modified 1,2,5 oxadiazole scaffold could be considered for the development of new anti-topoisomerase agents.