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Analysis of antiproliferative activity of new half-sandwich arene Ru(II) thiophene based aroylhydrazone complexes
Dalton Transactions ( IF 3.5 ) Pub Date : 2024-07-23 , DOI: 10.1039/d4dt01845a Ramya Prabaharan 1 , Abirami Arunachalam 1 , Ramesh Rengan 1
Dalton Transactions ( IF 3.5 ) Pub Date : 2024-07-23 , DOI: 10.1039/d4dt01845a Ramya Prabaharan 1 , Abirami Arunachalam 1 , Ramesh Rengan 1
Affiliation
Efforts in researching the efficient anti-tumor properties of three novel arene ruthenium(II) complexes incorporating thiophene-based aroylhydrazone ligands have been undertaken. The complexes’ elemental composition was [(η6-p-cymene)Ru(L)Cl]. They were comprehensively characterized through elemental and spectroscopic analyses (FT-IR, UV-vis, NMR, and HR-MS). Single crystal X-ray diffraction studies revealed a pseudo-octahedral geometry with bidentate coordination of the ligands in a representative complex. The in vitro assessment of the complexes’ cancer cell growth inhibition was conducted using the MTT assay against A549 (human lung carcinoma), HeLa (human cervical carcinoma), HuH-7 (hepatocellular carcinoma), and NIH-3T3 (mouse fibroblast non-cancerous cell line). Results indicated significant cytotoxicity across all cancer cell lines, with IC50 concentrations of complex 2 being 6.8 μM for A549, 11.6 μM for HeLa, and 9.4 μM for HuH-7, compared to cisplatin with IC50 values of 18.9 μM, 17.68 μM, and 24 μM respectively. Notably, complex 2 demonstrated particularly promising cytotoxicity against all tested cancerous cell lines. Fluorescent staining analysis such as acridine orange/ethidium bromide (AO–EB) and HOECHST 33342 revealed cell death mechanisms involving membrane disintegration and nuclear condensation following treatment with complex 2. Further studies were conducted to measure reactive oxygen species (ROS) levels using the dichlorodihydrofluorescein diacetate (DCFH-DA) assay, and mitochondrial membrane potential (MMP) was assessed using the JC-1 dye assay. These studies demonstrated that complex 2 increased ROS levels, decreased membrane potential, and promoted mitochondrial dysfunction-mediated cell death pathways. Additionally, flow cytometry analysis, utilizing dual staining of Annexin V-FITC and propidium iodide (PI), was employed to quantitatively study apoptosis induction.
中文翻译:
新型半夹心芳烃Ru(II)噻吩基芳酰腙配合物的抗增殖活性分析
我们已致力于研究三种新型芳烃钌( II )配合物结合噻吩基芳酰腙配体的有效抗肿瘤特性。配合物的元素组成为[( η 6 - p -伞花烃)Ru(L)Cl]。通过元素和光谱分析(FT-IR、UV-vis、NMR 和 HR-MS)对它们进行了全面表征。单晶 X 射线衍射研究揭示了具有代表性配合物中配体双齿配位的伪八面体几何形状。使用针对 A549(人肺癌)、HeLa(人宫颈癌)、HuH-7(肝细胞癌)和 NIH-3T3(小鼠成纤维细胞非癌细胞)的 MTT 测定对复合物的癌细胞生长抑制进行体外评估。癌细胞系)。结果表明,对所有癌细胞系均具有显着的细胞毒性,复合物2的 IC 50浓度对于 A549 为 6.8 μM,对于 HeLa 为 11.6 μM,对于 HuH-7 为 9.4 μM,而顺铂的 IC 50值为 18.9 μM、17.68 μM,和24μM分别。值得注意的是,复合物2对所有测试的癌细胞系都表现出特别有前景的细胞毒性。吖啶橙/溴化乙锭 (AO-EB) 和 HOECHST 33342 等荧光染色分析揭示了细胞死亡机制,涉及复合物2处理后的膜崩解和核浓缩。 进一步研究使用二氯二氢荧光素二乙酸酯 (DCFH-DA) 测定法测量活性氧 (ROS) 水平,并使用 JC-1 染料测定法评估线粒体膜电位 (MMP)。这些研究表明,复合物2增加了 ROS 水平,降低了膜电位,并促进了线粒体功能障碍介导的细胞死亡途径。此外,利用膜联蛋白 V-FITC 和碘化丙啶 (PI) 双重染色的流式细胞术分析用于定量研究细胞凋亡诱导。
更新日期:2024-07-23
中文翻译:
新型半夹心芳烃Ru(II)噻吩基芳酰腙配合物的抗增殖活性分析
我们已致力于研究三种新型芳烃钌( II )配合物结合噻吩基芳酰腙配体的有效抗肿瘤特性。配合物的元素组成为[( η 6 - p -伞花烃)Ru(L)Cl]。通过元素和光谱分析(FT-IR、UV-vis、NMR 和 HR-MS)对它们进行了全面表征。单晶 X 射线衍射研究揭示了具有代表性配合物中配体双齿配位的伪八面体几何形状。使用针对 A549(人肺癌)、HeLa(人宫颈癌)、HuH-7(肝细胞癌)和 NIH-3T3(小鼠成纤维细胞非癌细胞)的 MTT 测定对复合物的癌细胞生长抑制进行体外评估。癌细胞系)。结果表明,对所有癌细胞系均具有显着的细胞毒性,复合物2的 IC 50浓度对于 A549 为 6.8 μM,对于 HeLa 为 11.6 μM,对于 HuH-7 为 9.4 μM,而顺铂的 IC 50值为 18.9 μM、17.68 μM,和24μM分别。值得注意的是,复合物2对所有测试的癌细胞系都表现出特别有前景的细胞毒性。吖啶橙/溴化乙锭 (AO-EB) 和 HOECHST 33342 等荧光染色分析揭示了细胞死亡机制,涉及复合物2处理后的膜崩解和核浓缩。 进一步研究使用二氯二氢荧光素二乙酸酯 (DCFH-DA) 测定法测量活性氧 (ROS) 水平,并使用 JC-1 染料测定法评估线粒体膜电位 (MMP)。这些研究表明,复合物2增加了 ROS 水平,降低了膜电位,并促进了线粒体功能障碍介导的细胞死亡途径。此外,利用膜联蛋白 V-FITC 和碘化丙啶 (PI) 双重染色的流式细胞术分析用于定量研究细胞凋亡诱导。