针对DNA的 thiazole-naphthyl衍生物的抗癌疗效:合成,晶体结构,密度功能理论,分子对接和分子动力学研究研究
Abhishek Aher1, Pradip Bera2, Paula Brandao3
1Centre for DNA Fingerprinting & Diagnostics (CDFD), Hyderabad, Telangana 500 039, India.
International journal of biological macromolecules
|January 19, 2025
概括
两种新型联体HL1和HL2显示出显著的抗瘤活性. 通过诱导亡,HL2表现出优越的DNA结合和对HepG2癌细胞的有效性,使其成为有前途的治疗候选者.
科学领域:
- 药用化学 医学化学
- 分子生物学分子生物学
- 晶体学 晶体学是指结晶学.
背景情况:
- 新型配体对于开发有效的癌症疗法至关重要.
- 了解配体-DNA相互作用是设计向抗癌药物的关键.
研究的目的:
- 合成和描述两个新的配体,HL1和HL2.
- 评估它们的抗瘤活性和作用机制.
- 为了研究它们的DNA结合模式和亲和关系.
主要方法:
- 谱学和单一X射线晶体学用于连接体的表征.
- 对HepG2细胞和PBMCs的生物测试 (IC50)
- 在DNA结合研究中进行UV-Vis定位,循环二重化和DNA粘度测量.
- 分子对接和动力学模拟.
主要成果:
- 这两种连接体都表现出平面结构和三临床晶体系统.
- 与HL1 (IC50:7.3μM) 相比,HL2对HepG2细胞表现出显著的抗瘤活性 (IC50:3.2μM).
- HL2诱导了亡,而HL1引发了亡;两者对PBMC无毒.
- 比HL1 (Kb: 1.02 × 10^4 M-1),HL2显示出更强的DNA结合 (Kb: 1.08 × 10^5 M-1),而不是HL1 (Kb: 1.02 × 10^4 M-1).
- HL2充当中度DNA插曲器,HL1充当槽绑定器,得到了计算研究的支持.
结论:
- 与HL1.1相比,HL2具有更高的DNA结合亲和力和抗瘤功效.
- 在HL2中的额外的纳基增强了它与DNA的相互作用.
- HL2是癌症治疗进一步发展的有希望的候选人.
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