结肠上皮细胞的ACE2表达与病毒感染,免疫力和能量代谢有关
Yuyin Qi1,2, Yuxin Huang1, Hanhan Chen1
1Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510623, China.
Scientific reports
|January 19, 2026
概括
ангиотензин I 转化酶 2 (ACE2) 在结肠细胞中高度表达,参与免疫和新陈代谢. 它的表达在炎症性肠病中增加,这表明它在肠道对COVID-19等病毒感染的反应中发挥了作用.
科学领域:
- 胃肠病学 胃肠病学
- 病毒学 病毒学
- 免疫学 免疫学 免疫学
背景情况:
- 严重急性呼吸道综合征冠状病毒2 (SARS-CoV-2) 导致COVID-19,利用 ангиотензинI转化酶2 (ACE2) 作为受体.
- 在肺损伤和肠道炎症中,ACE2起着保护作用,调节胺-血管酶系统和肠道微生物群.
- 在肠道中ACE2的表达对于维持恒温和免疫反应至关重要.
研究的目的:
- 研究ACE2在人类结肠中的表达和功能,特别是在炎症性肠病 (IBD) 的背景下.
- 探索ACE2与与病毒感染和结肠细胞免疫相关的基因的共同表达模式.
- 评估ACE2在肠道对SARS-CoV-2感染的反应中的潜在作用.
主要方法:
- 从健康个体和患有大肠炎,性大肠炎和克罗恩病的患者获得的单细胞RNA测序数据的分析.
- 同表达和基因本体学 (GO) 丰富分析以确定与ACE2相关的基因.
- 多重免疫光学 (mIF) 用于评估结肠组织样本中ACE2,IFNA4和RSAD2的表达.
主要成果:
- 在结肠细胞中,ACE2表现出高和特定的表达.
- 参与病毒感染和免疫的基因在结肠细胞中高度表达,病毒感染,免疫和能量代谢途径显著丰富.
- 与对照组相比,IFNA4和RSAD2的表达在性结肠炎和克罗恩病患者的结肠上皮细胞ACE2阳性细胞中显著增加.
结论:
- ACE2在结肠细胞中显著表达,与免疫和代谢功能有关.
- 在IBD患者中增加了ACE2表达和相关免疫基因,这表明它参与了肠道抗病毒防御.
- ACE2可能在肠道对SARS-CoV-2感染的反应中发挥重要作用,影响免疫力和新陈代谢.
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