Theoretical Investigation by DFT and Molecular Docking of Synthesized Oxidovanadium(IV)-Based Imidazole Drug Complexes as Promising Anticancer Agents

• Published in: Molecules (Basel, Switzerland) Vol. 27; no. 9; p. 2796
• Main Authors: Basaleh, Amal S, Alomari, Fatimah Y, Sharfalddin, Abeer A, Al-Radadi, Najlaa S, Domyati, Doaa, Hussien, Mostafa A
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 27-04-2022; MDPI
• Subjects: Antibacterial agents; anticancer activity; Antiinfectives and antibacterials; Antineoplastic Agents - chemistry; Antiparasitic agents; Antiviral agents; Binding; Biocompatibility; Biological activity; Breast cancer; Cancer therapies; Coordination Complexes - chemistry; Cytotoxicity; Density functional theory; Deoxyribonucleic acid; DFT study; Diabetes mellitus; DNA; DNA - chemistry; DNA-binding; Hepatocellular carcinoma; Humans; Imidazole; imidazole drugs; Imidazoles - chemistry; Imidazoles - pharmacology; Investigations; Ligands; Liver cancer; Magnetic moments; Metal complexes; Molecular docking; Molecular Docking Simulation; oxidovanadium(IV) complexes; Proteins; Spectrum analysis; Structural analysis; Thermal analysis; Tumor cell lines; Vanadium; Vanadium compounds; DFT study; imidazole drugs; molecular docking; anticancer activity; oxidovanadium(IV) complexes; DNA-binding
• ISSN: 1420-3049; 1420-3049
• DOI: 10.3390/molecules27092796

Vanadium compounds have been set in various fields as anticancer, anti-diabetic, anti-parasitic, anti-viral, and anti-bacterial agents. This study reports the synthesis and structural characterization of oxidovanadium(IV)-based imidazole drug complexes by the elemental analyzer, molar conductance, magnetic moment, spectroscopic techniques, as well as thermal analysis. The obtained geometries were studied theoretically using density functional theory (DFT) under the B3LYP level. The DNA-binding nature of the ligands and their synthesized complexes has been studied by the electronic absorption titrations method. The biological studies were carried with in-vivo assays and the molecular docking method. The EPR spectra asserted the geometry around the vanadium center to be a square pyramid for metal complexes. The geometries have been confirmed using DFT under the B3LYP level. Moreover, the quantum parameters proposed promising bioactivity of the oxidovanadium(IV) complexes. The results of the DNA-binding revealed that the investigated complexes bind to DNA via non-covalent mode, and the intrinsic binding constant (K
) value for the [VO(SO
)(MNZ)
] H
O complex was promising, which was 2.0 × 10
M
. Additionally, the cytotoxic activity of the synthesized complexes exhibited good inhibition toward both hepatocellular carcinoma (HepG-2) and human breast cancer (HCF-7) cell lines. The results of molecular docking displayed good correlations with experimental cytotoxicity findings. Therefore, these findings suggest that our synthesized complexes can be introduced as effective anticancer agents.