乙酸通过cGAS/STING/NF-κB通路诱导HaCaT细胞,人体外置细胞和老鼠的皮肤衰老
Hui Yu1, Jingjing Zhang1, Wei Zhang2
1School of Life Science, Liaoning University, Shenyang 110036, China.
Ecotoxicology and environmental safety
|September 24, 2025
概括
游泳池中的乙酸会通过引起老化和屏障损伤来损害皮肤. 这些化学物质激活了cGAS-STING-NF-κB通路,突显了需要更严格的环境法规的需要.
科学领域:
- 环境毒理学环境毒理学
- 皮肤病学 皮肤病学
- 分子生物学分子生物学
背景情况:
- 酸 (MCA,DCA,TCA) 是常见的消毒副产品,在游泳池中度很高.
- 它们的存在引起了人们对皮肤健康有害影响的担忧,但人们对潜在的毒性机制了解甚少.
研究的目的:
- 研究酸诱导的皮肤衰老的机制.
- 为了确定皮肤中酸毒性涉及的特定信号通路.
主要方法:
- 使用全厚皮肤模型,HaCaT细胞,人类皮肤扩展剂和老鼠模型.
- 评估了细胞内活性氧物种 (ROS),炎症因素,细胞周期,衰老标志物,皮肤屏障蛋白和组织学变化.
- 研究了干扰素基因 (STING) -核因子kappa B (NF-κB) 信号通路的循环GMP-AMP合成酶 (cGAS) 刺激器的作用.
主要成果:
- 酸增加了ROS,炎症,细胞循环停止和HaCaT细胞的衰老.
- 在人体皮肤爆炸物中,暴露破坏了皮肤屏障,导致表皮收缩.
- 鼠标模型显示皮形成,炎症和类似衰老的组织学变化.
- 鉴定出cGAS-STING-NF-κB通路是酸诱导皮肤损伤的关键调解者.
结论:
- 乙酸通过ROS生成,炎症和细胞循环中断诱导皮肤衰老和屏障功能障碍.
- 激活cGAS-STING-NF-κB通路是酸皮肤毒性的关键机制.
- 调查结果强调,需要制定环境法规,以限制接触这些有害的消毒副产品.
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