通过PI3K/Akt/Nrf2通路的调节,通过calceolarioside A诱导质瘤中的铁亡
Yongdong Liu1, Yufang Liu2, Aiwu Li3
1Department of Pediatric Surgery, Qilu Hospital of Shandong University; Department of Pediatric Surgery, Weifang Peoples Hospital.
Journal of visualized experiments : JoVE
|January 19, 2026
概括
素化物A (CaA) 在质瘤模型中诱导铁和调节PI3K/Akt/Nrf2通路. 本研究概述了评估CaA的方法.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 多形质母细胞瘤 (GBM) 仍然是一个具有挑战性的癌症,治疗选择有限.
- 铁死是一种受调节的细胞死亡形式,在癌症治疗中具有潜在的治疗点.
- PI3K/Akt/Nrf2通路在癌细胞生存和耐药性方面发挥着至关重要的作用.
研究的目的:
- 为了研究 Calceolarioside A (CaA) 对质瘤模型中的铁灭诱导的影响.
- 阐明PI3K/Akt/Nrf2通路在CaA介导的铁亡中的作用.
- 在临床前质瘤模型中评估CaA的治疗疗效和安全性.
主要方法:
- 在U251和U87质瘤细胞中进行基于细胞的测试 (活力,增殖,化学敏感性).
- 对铁亡标记物的生物化学和分子分析 (ROS,GSH,MDA,铁,GPX4,xCT,费里丁).
- 西部斑块,qRT-PCR,免疫沉和分子对接,以评估途径调制和CaA-PI3K相互作用.
主要成果:
- CaA治疗诱导了质瘤细胞中的铁亡,由增加的ROS和脂质过氧化证明.
- CaA调节PI3K/Akt/Nrf2通路,影响Nrf2的表达和无处不在.
- 在体内研究表明,CaA在小鼠异种移植模型中的抗瘤活性具有可接受的全身毒性.
结论:
- 卡尔西奥拉里奥赛德A通过诱导铁亡,表现出有前途的抗瘤活性.
- PI3K/Akt/Nrf2通路与CaA的作用机制有关.
- 氨酸是质瘤治疗的潜在治疗候选者,需要进一步研究.
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