组织因子是放射治疗诱导的质母细胞瘤重塑的关键调节者
Hye-Min Jeon1, Jeong-Yub Kim2, Hee Jin Cho3
1Department of Cancer Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA.
Cancer cell
|July 14, 2023
概括
放射治疗通过诱导CD142 (F3) 引起质母细胞瘤 (GBM) 复发. 向F3抑制GBM细胞扩张和瘤复发,为这种侵袭性脑癌提供新的治疗策略.
科学领域:
- 在瘤学瘤学.
- 癌症生物学 癌症生物学
- 放射治疗研究 放射治疗研究
背景情况:
- 放射治疗 (RT) 是一种标准的质母细胞瘤 (GBM) 治疗方法.
- 通过不太了解的机制,RT可以诱导放射电阻和瘤复发.
- 质母细胞瘤微环境 (TME) 辐射后的变化导致治疗失败.
研究的目的:
- 确定驱动GBM无线电阻和RT后复发的分子机制.
- 调查细胞表面标记物在辐射后GBM中的作用.
- 探索F3 (CD142) 作为克服GBM无线电阻的治疗目标.
主要方法:
- 在被辐射的GBM细胞中选细胞表面标记物.
- 对与衰老相关的β-galactosidase (SA-βGal) 阳性细胞的分析.
- 研究F3在GBM细胞扩张和TME重塑中的作用.
- 在临床前的GBM模型中使用F3向剂.
主要成果:
- 在SA-βGal阳性GBM细胞中,CD142 (F3) 在辐射后显著诱导.
- F3促进照射GBM细胞的克隆扩张和TME重塑.
- F3激活了瘤自主信号传递,外部凝血,并促进了一个类似于介酶体的状态.
- F3信号导致TAM激活和ECM重塑.
- 一种针对F3的药物有效地抑制了这些过程,并防止了瘤在体内复发.
结论:
- 在GBM中,F3是瘤衰老和治疗耐药性的关键调节者.
- 准F3是一个有前途的策略,可以克服放射电阻并防止GBM的复发.
- 抑制F3为质母细胞瘤患者提供了一种新的治疗途径.
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