在子肠上皮细胞中,Indole调节酸诱导的炎症反应
Wei Yan1, Aiwen Zhu1, Bingqian Zhong2
1School of Animal Science and Technology, Jiangsu Agri-animal Husbandry Vocational College, Taizhou, Jiangsu, 225300, China.
Microbial pathogenesis
|September 11, 2025
概括
微生物代谢物英多尔减少了子肠道细胞的炎症,这种炎症是由脂铁醇酸 (LTA) 刺激的. 印多尔还通过调节NF-κB通路来增强肠道屏障功能.
科学领域:
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
- 胃肠病学 胃肠病学
背景情况:
- 作为一种微生物代谢物,英多尔会影响肠道微生物组的功能,肠道平衡和免疫反应.
- 在酸 (LTA) 刺激下,醇对子肠上皮细胞 (IECs) 的特定作用以前是未知的.
研究的目的:
- 为了研究英多尔对用LTA刺激的子IEC的影响.
- 阐明英多尔在调节炎症反应和维持子肠道屏障功能的作用.
主要方法:
- 主要的子IEC被隔离和表征.
- 用MTT和CCK-8试验评估了细胞活力.
- 用qRT-PCR测量了炎症性细胞因子 (TNF-α,IL-1β,IL-6) 和紧结蛋白 (claudin-1,ZO-1) 的mRNA表达.
- 通过使用qRT-PCR和西式涂抹分析了NF-κB信号通路激活 (NF-κB-Rel,p-NF-κB-p65).
主要成果:
- LTA刺激降低了IEC活力,并显著增加了TNF-α和IL-1βmRNA水平.
- 印度尔治疗显著降低了LTA诱导的TNF-α和IL-1β表达.
- 在LTA刺激下,Indole显著增加了TGF-β1,Claudin-1和ZO-1mRNA水平.
- 印度尔治疗降低了NF-κB-RelmRNA表达和化NF-κB-p65与总NF-κB-p65.5的比率.
结论:
- 通过调节NF-κB信号通路,Indole通过调节LTA治疗的子IECs中的炎症反应.
- 印多尔可以通过上调紧接蛋白表达来保持子肠上皮质屏障功能.
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