暴露于氨酸会通过ATF2-介导的亡在小鼠肠道上皮细胞中诱导肠道炎症和IBD类的病理变化
Youtong Guo1, Shuo Jin1, Yuechen Xing1
1Department of Occupational Health, School of Public Health, Harbin Medical University, Harbin, Heilongjiang, China.
Ecotoxicology and environmental safety
|December 10, 2025
概括
通过激活转录因子2 (ATF2) 途径,阿尼林暴露会导致肠道炎症和屏障损伤. 这项研究揭示了阿尼林.
科学领域:
- 环境毒理学环境毒理学
- 胃肠病学 胃肠病学
- 分子生物学分子生物学
背景情况:
- 氨酸是一种常见的环境污染物,对肠道健康的影响尚不清楚.
- 肠上皮质屏障的完整性和炎症对于肠道平衡至关重要.
研究的目的:
- 为了研究氨酸对肠道上皮细胞亡和炎症的影响.
- 探索激活转录因子2 (ATF2) 信号通路在氨酸诱导的肠道损伤中的作用.
主要方法:
- 在体外:IEC-6大鼠肠道密室上皮细胞用氨酸处理;评估活力,亡,ROS和信号通路.
- 在体内:C57BL/6小鼠通过口腔输液暴露在氨酸中;分析了阴茎组织病理学,炎症和屏障蛋白的阴茎组织.
- 西方模糊和沉默ATF2被用来阐明分子机制.
主要成果:
- 氨酸降低了细胞活力,诱导了细胞亡和ROS,并在试验室中破坏了紧密结.
- 在小鼠中,氨酸暴露导致肠道炎症,屏障破坏和IBD类病理特征.
- 氨酸激活了ATF2通路,而ATF2沉默减轻了氨酸引起的损伤.
结论:
- 氨酸通过ATF2通路激活促进肠上皮细胞亡和屏障破坏,导致炎症.
- 这项研究确定ATF2作为减轻林诱导肠道损伤的潜在治疗标.
- 研究结果提供了关于环境污染物如何导致肠道疾病的机制性见解.
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