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环境相关的PFDA水平通过激活cGAS/STING/NF-κB信号通路而加剧肠道炎症
Zhenyan Cui1, Xiaoyu Yuan1, Yuwei Wang1
1Department of Toxicology of School of Public Health, Department of Gynecologic Oncology of Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China.
The Science of the total environment
|October 9, 2024
概括
perfluorodecanoic acid (PFDA) 是一种PFAS化学物质,通过激活cGAS/STING/NF-κB通路,促进巨细胞和肠道炎症,即使环境度低. 这项研究突出了PFDAFDA的重点.
科学领域:
- 环境毒理学环境毒理学
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 和多基基物质 (PFAS) 是广泛存在的环境污染物.
- perfluorodecanoic acid (PFDA) 暴露与各种毒性影响有关,包括潜在的炎症.
- 关于PFDA和炎症的现有证据有限,需要进行机械研究.
研究的目的:
- 调查PFDA对炎症的体外和体内影响.
- 阐明PFDA促进炎症的分子机制.
- 通过PFDA评估炎症性肠病 (IBD) 的恶化.
主要方法:
- 在体外测试以评估巨细胞炎症.
- 用RNA测序 (RNA-seq) 进行途径选.
- 分子实验以验证路径激活.
- 在体内研究使用小鼠模型的炎症性肠病 (IBD).
主要成果:
- 在实验室中,PFDA暴露显著促进了巨细胞炎症.
- 环境相关的PFDA度激活了非正规的cGAS/STING/NF-κB通路.
- 在小鼠IBD模型中,PFDA以cGAS依赖的方式加剧了肠道炎症.
结论:
- 即使在环境相关的水平上,PFDA暴露也会促进肠道炎症.
- 这种cGAS/STING/NF-κB通路是PFDA诱导炎症的关键调解者.
- 研究结果揭示了PFDA暴露的潜在风险,并支持其管理.
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