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首页> 外文期刊>Journal of Macromolecular Science. Pure and Applied Chemistry >New insight into the DNA binding studies, In-Vitro anti-cancer activity and molecular modelling of dioxo complexes of Molybdenum(VI) and Tungsten(VI) hydroxamic acids
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New insight into the DNA binding studies, In-Vitro anti-cancer activity and molecular modelling of dioxo complexes of Molybdenum(VI) and Tungsten(VI) hydroxamic acids

机译：对DNA结合研究的新洞察，体外抗癌活性和二氧化钼（VI）和钨（VI）羟肟酸的分子综合体

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摘要

The present study embodies the detail of interaction of Complex 1, Bis(N-phenyl-o-methoxybenzohydroxamato)Molybdenum(VI): [N-PMBHA-Mo(VI)] and Complex 2, Bis(N-phenylbenzohydroxamato)Tungsten(VI): [N-PBHA-W(VI)] with ct-DNA (Calf thymus-DNA) and its consequences by UV-Visible absorption spectroscopy, fluorescence spectroscopy, three-dimensional fluorescence spectroscopy, viscosity measurements and molecular docking. The intrinsic binding constant, K-b of complexes were determined which follows the order as complex 1 > complex 2 along with variation in shift and intensity for the complexes. Fluorescence spectroscopy applied for the determination of Stern-Volmer quenching constant, binding constant and the number of binding sites which reveals groove mode of binding. Non-radiative energy transfer between donor and acceptor molecule exposed by Forster energy transference theory (FRET) studies. The increase in the relative viscosity of ct-DNA with increasing the concentration of the complex 1 and complex 2 is also revealed. FTIR analysis also revealed that both the complexes interacted positively with bases and phosphates of ct-DNA. The docking studies complemented the experimental results revealing minor groove mode of binding for both the complexes. Finally, the in-vitro cytotoxicity studies indicate that the complexes have excellent anticancer activity against the breast cancer cell line, MCF-7, which could be a constructive guideline to produce new generations of anticancer agents.
机译：本研究体现了复合物1的相互作用细节，双（N-苯基-O-甲氧基苯甲羟肟胺）钼（VI）：[N-PMBHA-MO（VI）]和复合物2，双（N-苯基苯并羟基）钨（VI ）：[N-PBHA-W（VI）]具有CT-DNA（CALF胸腺-DNA）及其通过UV可见吸收光谱，荧光光谱，三维荧光光谱，粘度测量和分子对接的后果。确定络合物的内在结合常数，k-b跟随络合物1>复合物2的顺序以及复合物的变化和强度的变化。荧光光谱施加用于测定税淬火恒定，结合常数和露出凹槽结合模式的结合位点的数量。福尔斯特能量转移理论（FRET）研究暴露的供体和受体分子之间的非辐射能量转移。还揭示了CT-DNA的相对粘度的增加，增加了复合物1和复合物2的浓度。 FTIR分析还揭示了两种复合物与CT-DNA的碱和磷酸盐相互作用。对接研究补充了实验结果，揭示了对复合物的较小凹槽的结合模式。最后，体外细胞毒性研究表明，复合物对乳腺癌细胞系MCF-7具有优异的抗癌活性，这可能是产生新一代抗癌剂的建设性指南。

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