卡诺索尔通过向miR-17-5p/TOLLIP/NF-κB轴来增强NSCLC细胞中的辐射敏感性
Zhen Gao1, Cheng Qian2, Liang Zhang3
1Radiotherapy Department, Affiliated Hospital 2 of Nantong University, 666 Shengli Road, Nantong, Jiangsu 226000, China.
Toxicology research
|February 2, 2026
概括
卡诺索尔是一种天然化合物,通过向miR-17-5p/TOLLIP/NF-κB通路来增强非小细胞肺癌 (NSCLC) 的辐射敏感性. 这种天然二烯会损害DNA修复,并促进细胞亡,从而提供抗辐射电阻的潜力.
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:
- 放射治疗耐药性是治疗非小细胞肺癌 (NSCLC) 的一个主要挑战.
- 需要新的治疗策略来克服NSCLC中的放射电阻.
- 天然化合物正在探索它们在癌症治疗中的潜力.
研究的目的:
- 为了研究红红衍生型二烯 (carnosol) 在NSCLC中的辐射敏感化作用.
- 阐明卡诺索尔作用的分子机制,重点关注miR-17-5p/TOLLIP/NF-κB轴.
- 评估卡诺索尔对癌细胞活力,细胞亡和DNA修复的影响.
主要方法:
- A549 NSCLC细胞用肉和X射线照射进行了治疗.
- 用CCK-8和TUNEL试验评估了细胞活力和细胞亡.
- 通过彗星,qRT-PCR,西部斑点和双露西法酶试验分析了DNA损伤,基因/蛋白质表达和通路相互作用.
主要成果:
- 卡诺索尔下调 miR-17-5p 和上调 TOLLIP,抑制 TLR4 和 p-NF-κB p65,同时增加 IκBα.
- 这些分子变化损害了DNA修复机制 (增加了γH2AX,减少了RAD51).
- 卡诺索尔显著增强了辐射诱导的亡,并减少了NSCLC细胞的克隆性存活率 (P < 0.01).
结论:
- 卡诺索尔通过调节miR-17-5p/TOLLIP/NF-κB信号通路,在NSCLC中表现出放射敏感性特性.
- 该化合物破坏了DNA修复途径,有助于其克服放射电阻的能力.
- 卡诺索尔在提高NSCLC患者放射治疗疗效方面显示出显著的治疗潜力.
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