气体等离子体诱导的细菌PAMP释放促进皮肤癌细胞死亡
Julia Berner1,2, Malin Sieben2, Eric Freund2,3
1Department of Dermatology, Venerology, and Allergology, Rostock University Medical Center, Rostock, Germany.
Cell death & disease
|December 4, 2025
概括
冷气等离子体通过诱导细菌分子释放来增强癌症治疗,导致更大的瘤细胞死亡和减少生长. 这种组合疗法对氧化损伤产生协同作用,并改变癌细胞信号传递.
科学领域:
- 在瘤学瘤学.
- 微生物学 微生物学
- 生物物理学的生物物理.
背景情况:
- 受感染的皮肤瘤存在治疗挑战,往往导致进展和并发症.
- 瘤内的细菌感染可以通过释放调节瘤微环境 (TME) 的分子来驱动治疗耐药性.
- 细菌释放的病原体相关分子模式 (PAMPs) 与免疫和癌细胞相互作用,影响抗瘤或前瘤反应.
研究的目的:
- 为了研究冷气等离子体对细菌PAMP释放的影响.
- 在体外评估气体等离子治疗和细菌PAMP对皮肤癌细胞的联合作用.
- 了解癌症治疗中气体等离子体和PAMPs背后的协同机制.
主要方法:
- 在体外研究使用暴露于冷气等离子体的皮肤癌细胞系.
- 分析气体等离子处理诱导的细菌PAMP释放.
- 瘤细胞代谢活动,活力和氧化损伤 (γH2AX) 的评估.
- 质谱分析细菌细胞溶解和蛋白质释放.
- 在接受治疗的癌细胞中,化学激素和细胞激素表达的分析.
主要成果:
- 与单一治疗相比,联合气体血和PAMP治疗对瘤细胞产生了显著更强的增长抑制作用.
- 在组合治疗中观察到氧化损伤标志物 γH2AX 的协同增长.
- 气体等离子治疗增强了细菌细胞溶解,增加了细胞内蛋白质的释放.
- 暴露于气体等离子体和PAMP的癌细胞表现出改变的化学激素和细胞激素配置.
结论:
- 冷气等离子治疗可以诱导细菌PAMP的释放,这有助于瘤细胞毒性.
- 气体等离子体和细菌PAMP的组合显示出协同作用,增强抗癌活性.
- 了解这些相互作用对于提高气体血在治疗感染癌症中的疗效至关重要.
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