Synthesis, cytotoxicity, and long-term single dose anti-cancer pharmacological evaluation of dimethyltin(IV) complex of N(4)-methylthiosemicarbazone (having ONS donor ligand)

AbstractBackground and Objective: Toxicity of the chemotherapeutic compounds is widely investigated. An organotin (IV) derivative was designed to modulate the toxicity and long-term anticancer efficacy of the single dose. Materials and Methods: The reaction of dimethyltin(IV) dichloride with N(4)-methylthiosemicarbazone derived by condensation of 4-methylthiosemicarbazone with 5-bromo-2-hydroxybenzaldehyde was prepared in 1:1 M ratio in absolute methanol. The newly synthesized complex was characterized by elemental analysis, FT-IR, electronic, and 1H, 13C and 119Sn NMR spectroscopy. In vitro cytotoxicity (MTT, (3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide)), anticancer (migration, clonogenic, 3D tumor aggregation, nucleus condensation and mitochondrial membrane potential) activity, and in silico QSAR and molecular docking studies were performed. Results: The title compound was observed to be potent and selective toxic against MCF-7, HCT-116, and A549 human cancer cell lines. Moreover, this...