RT info:eu-repo/semantics/article T1 Thiosemicarbazone-metal complexes exhibiting cytotoxicity in colon cancer cell lines through oxidative stress A1 Alcaraz, Raquel A1 Muñiz Rodríguez, Pilar A1 Cavia Saiz, Mónica A1 Palacios, Óscar A1 Samper, Katia G. A1 Gil García, Rubén A1 Jiménez Pérez, Alondra A1 García Tojal, Javier A1 García Girón, Carlos K1 Cell death K1 Cobalt compounds K1 Colon carcinoma K1 Iron compounds K1 Oxidative stress K1 Thiosemicarbazone K1 Bioquímica K1 Biochemistry AB Colorectal cancer is the third most common type of cancer and has a high incidence in developed countries. At present, specific treatments are being required to allow individualized therapy depending on the molecular alteration on which the drug may act. The aim of this project is to evaluate whether HPTSC and HPTSC* thiosemicarbazones (HPTSC = pyridine-2-carbaldehyde thiosemicarbazone and HPTSC* = pyridine-2-carbaldehyde 4N-methylthiosemicarbazone), and their complexes with different transition metal ions as Cu(II), Fe(III) and Co(III), have antitumor activity in colon cancer cells (HT-29 and SW-480), that have different oncogenic characteristics. Cytotoxicity was evaluated and the involvement of oxidative stress in its mechanism of action was analyzed by quantifying the superoxide dismutase activity, redox state by quantification of the thioredoxin levels and reduced/oxidized glutathione rate and biomolecules damage. The apoptotic effect was evaluated by measurements of the levels of caspase 9 and 3 and the index of histones. All the metal-thiosemicarbazones have antitumor activity mediated by oxidative stress. The HPTSC*-Cu was the compound that showed the best antitumor and apoptotic characteristics for the cell line SW480, that is KRAS gene mutated. PB Elsevier SN 0162-0134 YR 2020 FD 2020-05 LK http://hdl.handle.net/10259/5318 UL http://hdl.handle.net/10259/5318 LA eng DS Repositorio Institucional de la Universidad de Burgos RD 23-nov-2024