丁丁达尼布通过促进铁亡和调节ATF4/SLC7A11/GSH轴来增强瘤细胞的辐射敏感性
Chunya Li1, Aifeina Aili1, Qingqing Yu1
1Department of Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
Cancer biology & medicine
|November 19, 2025
概括
与放射治疗相结合的宁泰达尼布可以通过促进铁亡来增强抗瘤效果. 这种组合针对ATF4通路,为固体瘤提供低毒性治疗策略,克服放射性耐药性.
科学领域:
- 在瘤学瘤学.
- 辐射瘤学 辐射瘤学
- 分子生物学分子生物学
背景情况:
- 放射治疗的疗效受到瘤放射电阻和正常组织纤维化的限制.
- 宁泰达尼布在治疗固体瘤和辐射诱导的肺纤维化方面表现有前途.
- 宁泰达尼布和放射治疗的组合以前没有被研究过.
研究的目的:
- 为了评估宁泰达尼布与放射治疗相结合的抗瘤疗效.
- 调查这种联合治疗策略的安全性.
- 为了阐明作用的潜在机制.
主要方法:
- 瘤载体模型被用于对抗瘤效果和安全性的体内评估.
- 进行了反应性氧物种 (ROS) 和脂质过氧化试验.
- 使用了传输电子显微镜,过度表达等离子体和shRNA敲击技术.
主要成果:
- 宁泰达尼布和放射治疗的结合体在体内表现出强烈的抗瘤活性.
- 丁丁达尼布通过降低ATF4的调节来抑制SLC7A11介导的GSH合成途径.
- 联合治疗增强了瘤细胞中的铁亡.
结论:
- 与放射治疗相结合的宁泰达尼布是一种有效的,低毒性的治疗策略.
- 准ATF4通路具有显著的抗瘤潜力.
- 这种组合可以克服放射电阻并减少纤维化.
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