Department of Chemistry, University of Sistan and Baluchestan, Zahedan, Iran.
Faculty of Chemistry, University of Mazandaran, Babolsar, Iran.
Biometals. 2021 Oct;34(5):1173-1189. doi: 10.1007/s10534-021-00335-8. Epub 2021 Aug 7.
A new palladium(II) complex entitled [Pd(phendione)(8Q)]NO, (PdPQ), where phendione is N,N-donor heterocyclic 1,10-phenanthroline-5,6-dion and 8Q is 8-hydroxyquinolinate, has been synthesized and then characterized by molar conductivity, CHN analysis and spectral data (UV-Vis, FT-IR, NMR). DFT/ TDDFT procedures were also performed to determine the electronic structure and the nature of the electronic transitions of PdPQ. Moreover, the affinity and binding properties of DNA to the desired complex have been studied in details using electronic absorption, fluorescence, circular dichroism spectroscopies, and viscosity measurement in combination with molecular docking technique. The obtained results exhibit relatively high DNA binding values with a static quenching mechanism, which suggest that an intercalative mode plays a peridominate role in interaction process concluded by experimental/theoretical measurements. As a result of drug exposure, in vitro cytotoxicity assay demonstrated the antiproliferative activity of the PdPQ against leukemia cancer cell line, K562.
一个新的钯（II）配合物，标题为 [Pd(phendione)(8Q)]NO，（PdPQ），其中 phendione 是 N，N-供体杂环 1,10-菲咯啉-5,6-二酮和 8Q 是 8-羟基喹啉酸盐，已经被合成，然后通过摩尔电导率、CHN 分析和光谱数据（UV-Vis、FT-IR、NMR）进行了表征。还进行了 DFT/TDDFT 程序，以确定 PdPQ 的电子结构和电子跃迁的性质。此外，使用电子吸收、荧光、圆二色性光谱学以及与分子对接技术相结合的粘度测量，详细研究了期望的配合物与 DNA 的亲和力和结合特性。获得的结果显示具有相对较高的 DNA 结合值，具有静态猝灭机制，这表明在实验/理论测量得出的相互作用过程中，插层模式起着主导作用。由于药物暴露，体外细胞毒性测定表明 PdPQ 对白血病癌细胞系 K562 具有抗增殖活性。
