皮拉注入金属复合物:抗癌活性,DNA裂变,以及对DNA/BSA相互作用的生物物理见解
Tankadhar Behera1, Jyotiprabha Rout1, Namita Bhoi2
1School of Chemistry, Sambalpur University, Jyoti Vihar, Sambalpur, Odisha 768019, India.
ACS applied bio materials
|September 17, 2025
概括
这项研究合成和表征了新的基于Pyrazole的金属复合物 (Co(II,Cu(II,Zn(II)) 能够有效地与DNA和蛋白质结合. 复合体2表现出强大的DNA裂变活性,由活性氧物种介导,并表现出对乳腺癌细胞有前途的细胞毒性作用.
科学领域:
- 协调化学 协调化学
- 生物有机化学 生物有机化学
- 化学生物学 化学生物学
背景情况:
- 基于皮拉的配体是协调化学中的多功能构建块.
- 金属复合物可以表现出各种生物活动,包括DNA结合和裂变.
- 了解结构-活性关系对于开发新型治疗剂至关重要.
研究的目的:
- 为了合成和表征新的 (II),铜 (II) 和 (II) 复合物与二甲基pyrazole连接体.
- 研究这些复合物的DNA和蛋白质结合能力.
- 为了评估它们的DNA分裂活动,机制和细胞毒性对抗癌症细胞系.
主要方法:
- 使用FTIR,UV-vis,ESI-HRMS和X射线衍射合成和表征金属复合物.
- 对DNA和蛋白质结合的光谱研究 (紫外线,光).
- 凝电泳用于DNA裂变检测,MTT检测用于细胞毒性,以及流细胞计用于细胞亡分析.
主要成果:
- 成功合成和表征了[CoCl2[dmp]2] (1),[CuCl2[dmp]2]2 (2) 和[ZnCl2[dmp]2] (3) 复合物.
- 综合体1-3对牛血清白蛋白和小牛胸腺DNA具有强烈的结合.
- 复合体2显示显著的自我激活DNA裂变,由甲酸盐和H2O2增强,涉及ROS.
- 细胞毒性测试显示,针对MCF-7,MDA-MB-231和HEK-293细胞系的IC50值不同.
- 对MDA-MB-231细胞的亡效应主要通过晚期亡途径进行调解.
结论:
- 合成的基于pyrazole的金属复合物具有DNA结合和裂变特性.
- 复合物2是一种强大的化学核酶,其活性取决于活性氧物种.
- 这些复合物显示出作为抗癌剂的潜力,诱导乳腺癌细胞的亡.
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