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通过基于AuNPs/ZnCl₂/NpAA固态基质的SERS研究Bendamustine和DNA分子之间的相互作用

Lina Yao¹, Yanjie Li¹, Zhenzhong Zuo¹

¹State Key Laboratory of Cultivation Base for Photoelectric Technology and Functional Materials, National Center for International Research of Photoelectric Technology & Nano-Functional Materials and Application, Key Laboratory of Photoelectronic Technology of Shaanxi Province, Institute of Photonics and Photon-Technology, Northwest University, Xi'an 710127, China.

International journal of molecular sciences

|September 9, 2023

概括

班达慕斯 (BENDA) 通过共价键和键与DNA相互作用,主要与瓜的N7原子结合. 这项研究阐明了单个分子水平上的BENDA-DNA相互作用,有助于新药的开发.

科学领域:

生物化学生物化学
分子生物学分子生物学
频谱学是一种光谱学.

背景情况:

班达穆斯丁 (Benda) 是一种用于癌症治疗的双功能化剂.
它的抗癌作用源于DNA结合,但确切的相互作用机制尚不清楚.
了解BENDA-DNA相互作用对于开发更安全,更有效的癌症药物至关重要.

研究的目的:

系统地研究bendamustine (BENDA) 和小牛胸腺DNA (ctDNA) 之间的相互作用特性.
在单个分子水平上阐明BENDA-DNA相互作用的机制.
为开发具有毒性降低的新型抗癌药物提供指导.

主要方法:

使用新型AuNPs/ZnCl2/NpAA基质的表面增强拉曼光谱 (SERS).
紫外线可见光谱学 (UV-Vis). 紫外线可见光谱学.
分子对接模拟. 分子对接模拟.

主要成果:

通过SERS和UV-Vis光谱,在与BENDA相互作用时,ctDNA的特征性光谱变化被揭示出来.
对不同度 (1:1, 2:1, 3:1) 的分析表明了不同的结合方式,包括共价结合和结合.
分子对接确定了瓜的N7原子作为DNA上BENDA的主要结合点.

结论:

这项研究成功地阐明了bendamustine和DNA在分子水平上的相互作用机制.
这些发现突出了共价键和键作为关键的相互作用模式,在关氨酸上有一个特定的结合点.
这项研究为设计改进的基于bendamustine的疗法提供了基础,提高了疗效,并将副作用降到最低.

关键词:

曲我们必须曲.牛犊胸腺的DNA DNA 药物DNA相互作用固态基板是固态基板的基础.表面增强的拉曼光谱学

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