肠上皮细胞中的催眠作用可以保护小鼠免受感染性大肠炎的侵害
Alain P Gobert1,2,3, Caroline V Hawkins1, Kamery J Williams1
1Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA.
Gut microbes
|December 14, 2024
概括
催眠,一个涉及脱氧类皮素合成酶 (DHPS) 和真核转化启动因子5A (EIF5A) 的过程,保护肠道上皮细胞免受病原体诱导的结肠炎的附着/消除 (A/E).
科学领域:
- 微生物学 微生物学
- 细胞生物学 细胞生物学
- 胃肠病学 胃肠病学
背景情况:
- 肠病原性大肠杆菌 (EPEC) 通过附着/消除 (A/E) 病变引起腹疾病.
- 聚氨酸,像精氨酸一样,对于肠道平衡至关重要.
- 脱素合成酶 (DHPS) 催化了真核细胞翻译启动因子5A (EIF5A) 的低化,影响了蛋白质翻译.
研究的目的:
- 为了研究低化在宿主对A/E病原体感染的反应中的作用.
- 阐明肠道上皮层中低的保护机制.
主要方法:
- 结肠上皮细胞和结肠有机体感染EPEC.
- 在小鼠中感染Citrobacter rodentium (一种动物EPEC模型).
- 在小鼠的肠上皮细胞中Dhps的遗传删除.
- 转录组分析和反应性化物解毒路径的评估.
主要成果:
- 在EPEC和C. rodentium感染期间,DHPS和EIF5A的hypusination水平增加.
- 在肠道细胞中Dhps的特定缺失加剧了C. rodentium诱导的大肠炎.
- 缺乏DHPS的小鼠表现出反应性化物的排毒受损,电友添加物增加.
结论:
- 肠上皮细胞中的催眠作用对A/E病原体诱导的感染性结肠炎有保护作用.
- 通过DHPS介导的hypusination支持化物排毒,减轻宿主组织损伤.
关键词:
在Citrobacter rodentium的研究中,肠病原性大肠杆菌埃舍里希亚聚氨酸是一种多氨酸.附着和消除病原体的病原体.大肠炎是一种大肠炎.主体病原体相互作用阴茎下垂体 (hypusine) 是一个类型.粘膜免疫反应的免疫反应翻译翻译翻译翻译翻译翻译更多相关视频
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