射频电流调节皮细胞中的炎症过程
Elena Toledano-Macías1, María Antonia Martínez-Pascual1, Almudena Cecilia-Matilla2
1Photobiology and Bioelectromagnetic Lab, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Hospital Ramón y Cajal, Crta. Colmenar Viejo, km. 9.100, 28034 Madrid, Spain.
International journal of molecular sciences
|October 16, 2024
概括
电容电阻转移 (CRET) 疗法增强了角质细胞的增殖,并调节了炎症性细胞因子的释放. 这种物理治疗激活了关键的信号通路,为伤口愈合和炎症控制提供了一种新的方法.
科学领域:
- 生物医学工程 生物医学工程
- 皮肤病学 皮肤病学
- 伤口治愈研究研究 伤口治愈研究
背景情况:
- 角质细胞对于伤口炎症和再生至关重要,产生调节过程的细胞因子.
- 以前的研究表明,电容电阻转移 (CRET) 疗法中的射频 (RF) 电流可以影响角质细胞的增殖和细胞因子的产生.
- 像CRET这样的物理疗法的抗炎作用背后的生物机制需要进一步阐明.
研究的目的:
- 研究亚热CRET对人类角质细胞 (HaCat) 增殖的影响.
- 分析CRET对关键细胞因子 (IL-8,MCP-1,RANTES,IL-6,IL-11) 和TNF-α) 的产生的影响.
- 检查CRET诱导的MMP9,MMP1,NF-κB,ERK1/2和EGFR的表达和激活的变化.
主要方法:
- 在亚热条件下,人类角质细胞 (HaCat) 暴露于间歇性448kHz的CRET信号.
- 细胞增殖被评估使用XTT测定.
- 细胞因子和TNF-α水平通过ELISA量化.
- 使用免疫光学可视化NF-κB激活.
- MMP9,MMP1,ERK1 / 2和EGFR的表达和激活通过免疫阻塞测试来确定.
主要成果:
- 与对照组相比,CRET显著增加了角质细胞的扩散.
- 观察到MCP-1,TNF-α和IL-6释放的短暂增加,以及IL-8的减少.
- 治疗CRET导致MMP表达和EGFR,NF-κB和ERK1/2蛋白的激活发生变化.
结论:
- 克雷特疗法有效调节人类角质细胞的增殖和炎症性细胞因子.
- 观察到的效应通过EGF受体和ERK1/2/NF-κB信号通路进行介导.
- 克雷特显示出对调节人类角质细胞的炎症反应的潜力,这与伤口再生有关.
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