恶性与非恶性皮肤细胞的血刺激后,细胞Nrf2/NF-κB信号的相互作用
Kristina Manzhula1, Alexander Rebl2, Kai Budde-Sagert3
1Institute of Cell Biology, Rostock University Medical Center, 18057 Rostock, Germany.
International journal of molecular sciences
|October 26, 2024
概括
冷大气压等离子体 (CAP) 通过激活癌细胞中的NF-κB,在健康细胞中增强抗氧化防御,选择性地准皮肤癌细胞. 这项研究阐明了农业政策的明确性.
科学领域:
- 生物医学工程 生物医学工程
- 皮肤病学 皮肤病学
- 癌症研究 癌症研究
背景情况:
- 皮肤癌是全球普遍存在的恶性瘤,需要先进的治疗策略.
- 冷大气压等离子体 (CAP) 在皮肤癌治疗中表现有前途,但其分子机制需要阐明.
- 了解CAP对癌症和非恶性细胞的选择性影响对于优化治疗至关重要.
研究的目的:
- 研究状细胞癌 (A431) 和非恶性 (HaCaT) 皮肤细胞对冷大气压等离子体 (CAP) 刺激的差异化分子反应.
- 阐明氧化还原通路,特别是活性氧物种 (ROS) 和抗氧化剂水平在调解CAP选择性效应中的作用.
- 评估参与氧化应激反应的关键蛋白质的激活和转移,包括NF-κB和Nrf2.
主要方法:
- 在基底和CAP刺激条件下对A431和HaCaT细胞中的ROS和抗氧化剂水平进行比较分析.
- 在CAP治疗后对NF-κB,IκBα,Nrf2,Keap1,IKK和pIKK的蛋白质转位的量化和评估.
- 在两种细胞类型中评估促炎和抗氧化反应基因 (例如IL-1B,IL-6,CXCL8,HMOX1,GPX1) 的基因表达.
主要成果:
- 未刺激的A431细胞表现出比HaCaT细胞更高的抗氧化剂水平,表明代谢周转率更高.
- CAP治疗在HaCaT细胞中诱导了显著的Nrf2核转位,增强了抗氧化剂保护.
- 在A431细胞中,CAP选择性地激活了NF-κB,在非恶性细胞中降低了促炎基因的调节,并提高了抗氧化基因的调节.
结论:
- A431和HaCaT细胞表现出明显的抗氧化能力,导致不同分子对CAP的反应.
- 通过诱导癌细胞中的亡相关途径和正常细胞中的保护性反应,CAP证明了选择性的治疗潜力.
- 这项研究强调了基于氧化还原的复杂机制,这些机制是CAP在皮肤癌治疗中的有效性基础.
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