微塑料在缺血-再输血损伤中的毒理效应
Qihui Kuang1, Likun Gao2, Lixiang Feng3
1Department of Urology, Wuhan Third Hospital and Tongren Hospital of Wuhan University, Wuhan, China.
Environmental toxicology
|December 29, 2023
概括
微塑料 (MPs) 通过激活 pyroptosis,一种编程细胞死亡形式,在缺血-再输液 (IR) 损伤后恶化损伤. 这项研究揭示了MPs会加剧脏的炎症和纤维化.
科学领域:
- 环境健康 环境健康
- 毒理学 毒理学 毒理学
- 腎病理生理學 腎病理生理學
背景情况:
- 微塑料 (MP) 是无处不在的环境污染物,具有潜在的健康风险.
- 微塑料暴露造成的损伤尚未得到充分了解.
- 缺血-再输液 (IR) 损伤是一种临床关键状况.
研究的目的:
- 研究微塑料对脏的毒性机制.
- 在小鼠模型中评估MPs对脏IR损伤的影响.
- 为了阐明火死在MP诱导的损伤中的作用.
主要方法:
- 在ICR小鼠暴露于0.5微米的MPs,持续12周.
- 诱导脏IR损伤. 诱导脏IR损伤.
- 分析损伤标记物,炎症因素,巨细胞标记物和与热死相关的基因 (NLRP3,ASC,GSDMD,caspase-1,IL-18).
主要成果:
- 国会议员的暴露加剧了IR引起的管和质细胞损伤.
- 国会议员增加了炎症标志物 (MCP-1,IL-6) 和巨细胞透 (CD68,F4/80).
- MPs加剧了纤维化和上调了与热死相关的基因,这表明NLRP3-GSDMD信号的激活.
结论:
- 暴露于微塑料会在IR后加剧损伤.
- MPs通过NLRP3-GSDMD通路在脏中促进炎症,纤维化和热化.
- 这项研究强调了MP对脏健康的有害影响,特别是在压力条件下.
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