二甲基甲酸 (DEHP) 通过肠道屏障功能障碍加剧食物过敏,增强过敏敏感性
Yuting Fan1, Zhoujin Xu1, Zhencong Yang1
1School of Public Health, Shenzhen University Medical School, Shenzhen University, Shenzhen 518060, Guangdong, PR China.
Journal of agricultural and food chemistry
|May 21, 2025
概括
暴露于二二甲基甲酸盐 (DEHP) 会通过破坏肠道屏障和免疫反应,使食物过敏恶化. 这种塑化剂充当免疫辅助剂,增加过敏反应并损害肠道完整性.
科学领域:
- 环境健康 环境健康
- 免疫学 免疫学 免疫学
- 胃肠病学 胃肠病学
背景情况:
- 2-乙烯基) 甲酸盐 (DEHP) 是一种常见的增塑剂,具有潜在的健康影响.
- 长期暴露于DEHP等环境污染物对公众健康的关注越来越大.
- 对于DEHP对食物过敏发展的影响及其机制仍然不完全理解.
研究的目的:
- 在小鼠模型中研究DEHP对卵蛋白 (OVA) 诱导的食物过敏的影响.
- 阐明DEHP通过哪些机制影响肠道屏障稳定和免疫反应.
- 为了确定DEHP暴露和食物过敏的发病因子之间的联系.
主要方法:
- 对卵素 (OVA) 敏感的BALB/c小鼠被暴露在DEHP中.
- 通过测量过敏症状和血清炎症调解剂 (IgE,IgG,IgG1,IgG2) 来评估过敏反应.
- 通过检查紧密结合蛋白,粘素分泌和组织病理学 (玻璃杯细胞) 来评估肠道屏障功能.
主要成果:
- 暴露于DEHP显著加剧了OVA诱导的食物过敏,作为一种免疫辅助剂.
- 观察到胰岛素,单细胞化学吸引蛋白-1 (MCP-1) 和特定抗体 (IgE,IgG,IgG1,IgG2) 的水平升高.
- DEHP 破坏了肠道屏障的完整性,减少了粘素的产生,降低了紧密结合蛋白的调节,并导致了杯状细胞的枯竭.
结论:
- 通过结合肠道屏障功能障碍和免疫调节障碍,DEHP会加剧食物过敏.
- 口服DEHP暴露与食物过敏病原发生有关键关联.
- 这项研究强调了环境污染物在调节肠道免疫力和促进食物过敏方面的作用.
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