欧巴利诺化B通过产生ROS和潜在的cuproptosis抑制胰腺癌
Qingtian Huang1,2, Jie Yang1, Jiaxing Zhang1
1Institute of Digestive Diseases, the Affiliated Qingyuan Hospital (Qingyuan Peoples's Hospital), Guangzhou Medical University, Qingyuan 511518, Guang Dong, China.
iScience
|August 5, 2024
概括
欧巴利诺化B (EB) 通过抑制细胞生长和诱导亡,在治疗胰腺癌方面表现有前途. 这种天然化合物,可能通过cuproptosis,提供了一个新的治疗途径,单独或与elesclomol (ES).
科学领域:
- 在瘤学瘤学.
- 药理学 药理学是指药理学的学科.
- 生物化学 生物化学
背景情况:
- 胰腺癌由于其高致死率和有限的治疗选择而构成重大治疗挑战.
- Eupatorium lindleyanum DC是一种植物来源,具有潜在的药用特性.
研究的目的:
- 调查来自Eupatorium lindleyanum DC的eupalinolide B (EB) 对胰腺癌的治疗潜力.
- 阐明EB抗癌作用的潜在机制,包括其对细胞活力,增殖,迁移,入侵和细胞亡的影响.
主要方法:
- 用细胞功能测试来评估EB对胰腺癌细胞系的影响.
- 使用异种移植小鼠模型来评估EB的体内疗效.
- 机械研究涉及测量活性氧物种 (ROS) 水平,评估亡,并通过基因组丰富分析 (GSEA) 执行RNA测序 (RNA-seq).
- 研究了与elasclomol (ES) 的协同效应.
主要成果:
- EB显著抑制了胰腺癌细胞的活力,增殖,迁移和入侵.
- 在体内,EB治疗减少了异种移植模型中的瘤生长和Ki-67表达.
- EB诱导了亡,增加了ROS水平,并扰乱了铜的平衡,这表明它在亡中发挥了作用.
- 通过进一步以铜依赖的方式增加ROS,EB证明了与elasclomol (ES) 的协同细胞毒性.
结论:
- 欧巴利诺化B通过包括诱导亡和破坏铜平衡在内的机制表现出强大的抗胰腺癌活性.
- EB显示了作为胰腺癌治疗剂的潜力,可能通过诱导亡.
- 与elasklomol (ES) 联合治疗可能会提高EB的疗效,为胰腺癌治疗提供了一个有前途的策略.
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