在口腔状细胞癌 (OSCC) 中,阿斯素与电离辐射 (IR) 协同作用
Yuheng Du1, Yanjie Shuai1, Zhuang Liu1
1Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China.
Molecular biotechnology
|December 16, 2023
概括
阿斯坦丁可以通过诱导通过铁亡的细胞死亡来增强口腔状细胞癌 (OSCC) 的电离辐射疗法. 这种组合疗法在体内显示出显著的瘤生长抑制.
科学领域:
- 在瘤学瘤学.
- 生物化学 生化学
- 辐射疗法 辐射疗法
背景情况:
- 阿斯丁 (ATX) 具有抗氧化和抗炎性质,但其在癌症中的作用,特别是口腔状细胞癌 (OSCC),需要进一步研究.
- 了解ATX与现有的癌症治疗方法,如电离辐射 (IR) 的协同作用,对于开发新型治疗策略至关重要.
研究的目的:
- 研究阿斯塔克桑丁 (ATX) 与电离辐射 (IR) 结合在口腔状细胞癌 (OSCC) 的潜在协同效应.
- 阐明涉及联合治疗疗效的潜在机制,包括铁亡.
主要方法:
- 细胞活力和殖民地形成测定是在用ATX和/或IR治疗的OSCC细胞系 (CAL27,SCC9) 和正常口腔角质细胞 (NHOK) 上进行的.
- 测量了氧化应激的生化标志物 (甲,甲) 和铁水平.
- 西方斑块和免疫组织化学 (IHC) 用于分析与铁亡相关的蛋白质 (GPX4,SLC7A11,ACSL4).
- 在体内研究中使用异种移植小鼠模型来评估瘤生长和蛋白质表达.
主要成果:
- 阿斯塔丁抑制了OSCC细胞活力,但不能抑制正常的角质细胞.
- 与单个治疗相比,ATX和IR联合治疗显著增强了OSCC细胞死亡.
- ATX调节氧化应激标志物和铁水平,通过抑制GPX4和SLC7A11促进铁,同时调节ACSL4.4.
- 在体内,ATX和IR联合治疗最有效地抑制了瘤生长,与改变的蛋白质表达一致.
结论:
- 在OSCC治疗中,阿斯丁与电离辐射具有协同作用.
- 组合疗法似乎部分通过诱导OSCC细胞中的铁亡作用.
- 这些发现表明ATX作为一种潜在的辅助疗法来增强OSCC的IR疗效.
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