结构相关的氧化瓦纳 (IV) - 黄化合物复合体. 对它们的抗癌作用的影响
Alexandra Velásquez Bravo1, Juan J Martínez Medina2, Libertad L López Tevez2
1CEQUINOR, CONICET/UNLP, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 N° 1465, 1900 La Plata, Argentina.
Journal of inorganic biochemistry
|April 10, 2025
概括
氧化瓦纳 (IV) (VO) 复合物与黄类药物显示出抗癌潜力. 通过诱导氧化应激,VOtroxerutin和VOquercetin通过诱导氧化应激,对肺癌细胞表现出选择性细胞毒性,VOtroxerutin显示出有利的安全性.
科学领域:
- 药用化学 医学化学
- 生物化学 生物化学
- 材料科学 材料科学 材料科学
背景情况:
- 黄类化合物具有抗氧化特性,但可以在癌细胞中充当亲氧化剂,特别是当与金属离子复合时.
- 氧化瓦纳 (IV) (VO) 复合物与黄具有显著的抗癌活性,受到连接物结构的影响.
- 素是一种修饰的素,它有改变的基组,可能会影响其金属协调和活性,与素相比.
研究的目的:
- 合成和表征氧化 (IV) 复合物与素 (VOtroxerutin) 和素 (VOquercetin) 的复合物.
- 研究这些VO-类复合物的结构与它们的抗癌活性之间的关系.
- 评估VOtroxerutin作为潜在的抗癌治疗药物的细胞毒性,选择性和安全性.
主要方法:
- 使用光谱 (FTIR,EPR,UV-Vis),元素,热和导电性分析,合成和对VOtroxerutin和VOquercetin复合物的完整表征.
- 在体外细胞毒性测定对A549人类肺癌细胞和HaCaT正常人类角质细胞.
- 评估VOtroxerutin的亲氧化作用,线粒体膜破坏以及安全性 (急性毒性,变异性) 概况.
主要成果:
- 两种VOtroxerutin和VOquercetin复合体都在体外对A549肺癌细胞显著的细胞毒性 (32.1%和39.5%的活力抑制,分别在100μM).
- 复合物显示有选择性,对正常的HaCaT角质细胞的影响很小 (10%的VOtroxerutin在100μM的活力抑制).
- 在癌细胞中观察到亲氧化活性,导致氧化应激和线粒体损伤;VOtroxerutin没有表现出急性毒性或突变效应.
结论:
- VO-类复合物,特别是VOtroxerutin和VOquercetin,由于它们在癌细胞中选择性诱导氧化应激,因此具有有前途的抗癌潜力.
- 与奎尔塞丁相比,特洛克苏丁的结构修改影响了该复合物的特性和治疗潜力.
- VOtroxerutin 具有良好的安全性,支持其作为向抗癌疗法的发展.
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