一种多吡啶双核单功能铂配合物的合成、晶体结构及抗癌活性
Synthesis, crystal structure, and anticancer activity of a polypyridyl binuclear monofunctional platinum(Ⅱ) complex
作者单位E-mail
李训一 湖北科技学院医学部药学院, 咸宁 437100
湖北科技学院医学部, 糖尿病心脑血管病变湖北省重点实验室, 咸宁 437100 
 
王宇静 湖北科技学院医学部药学院, 咸宁 437100  
周子默 湖北科技学院医学部药学院, 咸宁 437100
湖北科技学院医学部基础医学院, 咸宁 437100 
 
方霄 湖北科技学院医学部药学院, 咸宁 437100  
汪清清 湖北科技学院医学部药学院, 咸宁 437100  
胡美纯 湖北科技学院医学部, 糖尿病心脑血管病变湖北省重点实验室, 咸宁 437100  
杨晓松 湖北科技学院医学部基础医学院, 咸宁 437100 eas7on@163.com 
王小波 湖北科技学院医学部药学院, 咸宁 437100 xiaosong_yang@hbust.edu.cn 
摘要: 合成了一种含有多吡啶基配体2,6-双((双(吡啶-2-基甲基)氨基)甲基)吡啶(BPA-TPA)的双核单功能铂(Ⅱ)配合物[Pt2(BPA-TPA) Cl2]Cl2(Pt2-BPA-TPA),以核磁共振波谱和高分辨质谱进行表征,并通过X射线单晶衍射确定了Pt2-BPA-TPA的结构。琼脂凝胶电泳实验表明Pt2-BPA-TPA在10 μmol·L-1的低浓度下可有效切割pBR322 DNA。通过CCK-8(cell counting kit-8)实验检测了Pt2-BPA-TPA对人肺癌细胞系A549的细胞毒性,结果显示Pt2-BPA-TPA表现出比顺铂更好的抗癌活性,其主要通过触发DNA损伤和上调下游凋亡相关细胞信号通路蛋白(p21蛋白和cleaved-caspase-3)诱导细胞凋亡。
关键词: 单功能铂  抗癌活性  DNA切割  双核配合物  晶体结构
基金项目: 湖北省教育厅重点项目(No.D20212802)、 湖北省自然科学基金(No.2021CFB439)和湖北省卫健委项目(No.WJ2019Q022)资助。
Abstract: A binuclear monofunctional platinum (Ⅱ) complex, [Pt2(BPA-TPA)Cl2]Cl2 (Pt2-BPA-TPA), containing polypyridyl ligand 2, 6-bis((bis(pyridin-2-ylmethyl)amino)methyl)pyridine was synthesized and characterized by nuclear magnetic resonance and high-resolution mass spectroscopy. In addition, the structure of Pt2-BPA-TPA was determined by X-ray single-crystal diffraction. Agarose gel electrophoresis experiments were used to demonstrate the efficient pBR322 DNA-cleaving activity of Pt2-BPA-TPA at a low concentration of 10 μmol·L-1. In CCK-8 (cell counting kit-8) cytotoxicity studies using the A549 human lung cancer cell line, Pt2-BPA-TPA demonstrated enhanced anticancer activity compared with cisplatin. Mechanistic studies provided evidence that Pt2-BPA-TPA induces apoptosis via triggering DNA damage and upregulating downstream cellular signaling cascades of p21 and cleaved-caspase-3.
Keywords: monofunctional platinum(Ⅱ)  anticancer activity  DNA cleavage  binuclear complex  crystal structure
投稿时间:2022-06-28 修订日期:2022-11-16
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李训一,王宇静,周子默,方霄,汪清清,胡美纯,杨晓松,王小波.一种多吡啶双核单功能铂配合物的合成、晶体结构及抗癌活性[J].无机化学学报,2023,39(1):141-149.
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