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咖啡因增强的银纳米颗粒通过触发氧化应激,炎症和亡途径来向乳腺癌细胞
Naief Dahran1, Mohamed S Othman2, Farah Mumtaz3
1Department of Basic Medical Sciences, College of Medicine, University of Jeddah, Jeddah, 21959, Saudi Arabia.
Journal of pharmaceutical sciences
|April 25, 2025
概括
咖啡因结合的银纳米粒子 (Caf-AgNPs) 通过诱导亡和氧化应激,对乳腺癌细胞产生强大的抗癌作用. 这种新的方法提高了疗效,同时降低了对正常细胞的毒性,为乳腺癌提供了有前途的干预措施.
科学领域:
- 纳米技术 纳米技术
- 生物医学工程 生物医学工程
- 在瘤学瘤学.
背景情况:
- 乳腺癌 (BC) 是全球女性癌症死亡的主要原因.
- 开发有效且毒性较低的乳腺癌治疗方法仍然是一个关键的挑战.
研究的目的:
- 调查咖啡因结合的银纳米粒子 (Caf-AgNPs) 对MDA-MB-231乳腺癌细胞的抗癌疗效.
- 为了比较Caf-AgNPs与甲 (5-FU) 的治疗效果,并评估它们对正常小鼠肝 (NBL) 细胞的细胞毒性.
主要方法:
- 合成和咖啡因结合的银纳米粒子 (Caf-AgNPs) 的表征.
- 在MDA-MB-231乳腺癌细胞和NBL细胞上Caf-AgNPs的体外评估.
- 对氧化应激标志物 (ROS,MDA,GSH),炎症性细胞因子 (COX-2,IL-1β,TNF-α),与亡相关的蛋白质 (Bax,Bcl-2,caspase-3) 和细胞循环调节剂 (cyclin D1,CDK2) 的评估.
- 乳酸脱酶 (LDH) 释放用于膜完整性的分析.
主要成果:
- Caf-AgNPs对MDA-MB-231细胞表现出显著的抗癌活性,超过了5-FU的疗效.
- 在癌细胞中,Caf-AgNPs诱导了氧化应激,细胞亡和细胞循环停止.
- 咖啡因与银纳米颗粒 (AgNPs) 的结合增强了治疗效果,并在正常肝细胞中降低了细胞毒性.
- Caf-AgNPs通过线粒体路径触发了亡,由增加的Bax,减少的Bcl-2和caspase-3激活证明.
- 通过升高的LDH泄漏观察到细胞膜破坏.
结论:
- 在乳腺癌干预方面,Caf-AgNPs是一个有前途的治疗策略.
- Caf-AgNPs的多方面的机制包括诱导氧化应激,细胞亡,细胞循环停止,以及对炎症反应的调节.
- Caf-AgNPs提供了一种潜在的更有效和有针对性的方法来治疗乳腺癌,并减少副作用.
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