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Öğe New sulfa drug derivatives and their zinc(II) complexes: synthesis, spectroscopic properties and in vitro cytotoxic activities(Taylor & Francis Inc, 2024) Sahal, Hakan; Oz, Samet; Keskin, Tuba; Tekin, Suat; Canpolat, Erdal; Kaya, MehmetSynthesis of four sulfa drug derivatives (L-1-L-4) and Zn(II) complexes derived from sulfonamide group antibiotic substances was carried out using the hydrothermal technique (HT) and their structures of the obtained compounds were explained using elemental analysis (EA), FT-IR and NMR (H-1- and C-13-). Cytotoxic activities of four novel sulfa drug based-Schiff base compounds and their Zn(II) complexes were determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay using MCF-7 (human breast cancer), Caco-2 (human colorectal adenocarcinoma), A2780 (human ovarian cancer) and LNCaP (human prostate adenocarcinoma) cell lines. LogIC50 values of all obtained compounds were computed with the Graphpad Prism 6 program after 24 h of treatment for MCF-7, Caco-2, A2780 and LNCaP cells. Comet assay experiments were performed using LogIC(50) concentrations of all compounds to determine DNA damage. Based on the data obtained, all compounds significantly decreased MCF-7, Caco-2, A2780 and LNCaP cell viability compared to the control groups (p < 0.05). Communicated by Ramaswamy H. SarmaÖğe Synthesis, structural characterizations and in vitro cytotoxic activities of new sulfonamide-based Schiff base derivatives(Taylor & Francis Inc, 2023) Sahal, Hakan; Oz, Samet; Tekin, Suat; Canpolat, ErdalSynthesis of five different new compounds (1-5) were carried out. Their structures were characterized by spectroscopic methods such as Fourier transform infrared, Proton nuclear magnetic resonance, Carbon-13 nuclear magnetic resonance and Elemental analysis. Cytotoxic activities of five new sulfonamide based-Schiff base compounds were determined by MTT assay using A-2780 (human ovarian cancer) and MCF-7 (breast cancer) cell lines. LogIC(50) values of the sulfonamide derivates compounds were calculated by Graphpad Prism 12 programme after a 24-hour treatment for A2780 and MCF-7 cells. Comet assay experiments were performed to determine DNA damage using LogIC(50) concentrations of all compounds in A2780 and MCF-7 cells. All compounds significantly reduced A2780 and MCF-7 cell viability compared to control groups (p < 0.05). In addition, all compounds caused DNA damage in A2780 and MCF-7 cells (p < 0.05). These results show that the synthesized compounds exhibit cytotoxic effects against cancer cells and that the cause of cell death is due to DNA damage. Communicated by Ramaswamy H. Sarma