title: Synthesis, characterization, crystal structure, DNA and BSA binding, molecular docking and in vitro anticancer activities of a mononuclear dioxido-uranium(VI) complex derived from a tridentate ONO aroylhydrazone.
abstract: A mononuclear dioxido-uranium(IV) complex [UO2(L)(DMSO)2], was prepared from the reaction of (2-hydroxy-3-methoxybenzylidene)benzohydrazide [HL] with UO2(OAc)2·2H2O in DMSO. The obtained complex was fully characterized. Single crystal X-ray diffraction analysis of [UO2(L)(DMSO)2] revealed that U(VI) ion has been coordinated by ONO donor atoms of the dianionic ligand (L(2-)), oxo groups and two DMSO molecules in a pentagonal bipyramid geometry. In addition, interactions of the complex with salmon sperm DNA and bovine serum albumin (BSA) were thoroughly investigated using UV-vis absorption, voltammetry and molecular docking methods. The experimental studies showed an intercalative mode of interaction between the complex and DNA. Experiments on BSA interaction indicated a change in the polarity of the environment surrounded the complex as a result of the interaction between BSA and [UO2(L)(DMSO)2]. Finally, MTT assays indicated that the U(VI) complex had excellent cytotoxicity against human carcinoma cell lines of MCF-7, HPG-2, and HT-29, with IC50 values of 8.4, 10.6 and 10.0μM, respectively.
authors.affiliation: Department of Chemistry, Faculty of Science, Shahid Bahonar University of Kerman, Kerman, Iran; Department of Chemistry, Payame Noor University (PNU), 19395-4697 Tehran, Iran.
authors.forename: Maryam
authors.initials: M
authors.lastname: Mohamadi
authors.affiliation: Department of Chemistry, Faculty of Science, Shahid Bahonar University of Kerman, Kerman, Iran. Electronic address: Ebrahimipour@uk.ac.ir.
authors.forename: S Yousef
authors.initials: SY
authors.lastname: Ebrahimipour
authors.affiliation: Departamento de Química Inorgánica, Universidade de Vigo, Facultade de Química, Edificio de Ciencias Experimentais, 36310 Vigo, Galicia, Spain.
authors.forename: Jesus
authors.initials: J
authors.lastname: Castro
authors.affiliation: Department of Biotechnology, Institute of Science, High Technology and Environmental Science, Graduate University of Advance Technology, Kerman, Iran.
authors.forename: Masoud
authors.initials: M
authors.lastname: Torkzadeh-Mahani
mesh_terms: D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D018360:Crystallography, X-Ray; D004247:DNA / Q000378:metabolism*; D006801:Humans; D006835:Hydrazones / Q000737:chemistry*; D062105:Molecular Docking Simulation; D012710:Serum Albumin, Bovine / Q000378:metabolism*; D017550:Spectroscopy, Fourier Transform Infrared; D014501:Uranium / Q000737:chemistry*
chemical_list: D000970:Antineoplastic Agents; D006835:Hydrazones; D012710:Serum Albumin, Bovine; D014501:Uranium; D004247:DNA
keywords: BSA interaction; DNA binding; MTT assays; Molecular docking; U(VI) complex; X-ray crystal structure