通过GPX4自性降解,ENO1阻塞增加了TCI耐药CML中铁亡的易感性
Peng Hongwei1, Yang Xintong1, Chen Zhiwei2
1Department of Pharmacy, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, P.R. China; School of Pharmacy, Jiangxi Medical College, Nanchang University, P.R. China.
Free radical biology & medicine
|September 21, 2025
概括
乙酶1 (ENO1) 是慢性髓性白血病 (CML) 治疗耐药性的生物标志物. 阻断ENO1增强了TKI的敏感性,并通过降解GPX4促进耐性CML细胞中的铁亡.
科学领域:
- 在瘤学瘤学.
- 生物化学 生物化学
- 分子生物学分子生物学
背景情况:
- 氨酸激酶抑制剂 (TKIs) 改善了慢性髓性白血病 (CML) 治疗结果.
- 然而,大约20%的CML患者对TKI产生抗性,导致治疗失败.
- 乙酶1 (ENO1),一种糖解酶,与CML的发展有关,可能会影响药物反应.
研究的目的:
- 研究ENO1在CML中TKI耐药性的作用.
- 确定新的治疗策略,以克服CML中的TKI耐药性.
主要方法:
- 代谢和生物信息学分析是在对TKI耐药CML细胞 (K562/G) 进行的.
- 进行了转录基因分析,西部斑点 (WB) 和体内动物实验.
- 分析了来自CML患者的单细胞测序数据.
主要成果:
- 在CML中,ENO1表达与TKI反应和预后相关.
- 使用APIII-α4 (AP) 的ENO1阻塞,与TKI协同,并在耐药细胞中诱导铁亡.
- 低调ENO1导致GPX4通过AMPK/mTOR通路和ENO1-TMEM164相互作用自降解,从而增加了ferroptosis的易受性.
- 在体内,AP治疗可接受的安全性降低了瘤负担.
结论:
- 在CML中,ENO1是TKI反应的关键生物标志物.
- 封锁ENO1代表了一种潜在的治疗策略,通过诱导GPX4自相降解和铁亡来增强TKI灵敏度并克服CML中的抗性.
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