氨酸缺乏会使TNBS诱导的大肠炎恶化
Qicai Liu1, Shuyu Zhang2, Guozhong Liu3
1Center of Reproductive Medicine, The First Affiliated Hospital, Fujian Medical University, Fuzhou 350028, Fujian, China.
International immunopharmacology
|September 9, 2023
概括
亚德罗宾缺乏症通过促进肠道中促炎性M1巨细胞两极分化而加剧结肠炎. 恢复阿德罗宾水平可能有助于重新平衡巨细胞表型,并治疗炎症性肠病.
科学领域:
- 免疫学 免疫学 免疫学
- 胃肠病学 胃肠病学
- 代谢过程中的代谢.
背景情况:
- 阿德罗宾是一种新型激素,在代谢调节中具有潜在的作用.
- 巨细胞两极分化在炎症性肠病 (IBD) 的发病过程中至关重要.
- 氨酸缺乏与巨细胞功能的改变和炎症增加有关.
研究的目的:
- 调查阿德罗宾缺乏对巨细胞表型和大肠和中肠组织分布的影响.
- 阐明阿德罗宾影响巨细胞两极化的机制.
- 探索阿德罗在自发性和实验性结肠炎中的作用.
主要方法:
- 用RNA测序 (RNA-seq) 和代谢学来分析巨细胞调节机制.
- 在野生型和阿德罗缺乏 (Enho-/-) 的小鼠的结肠和介质组织中评估了巨类型的表型.
- 在体外研究中,使用adropin干预RAW264.7巨细胞,随后进行综合RNA-seq和代谢学分析.
- 实验性结肠炎是在体内使用TNBS诱导的.
主要成果:
- 在活跃的性结肠炎 (UC) 患者中,阿德罗宾水平显著降低.
- 亲炎性M1巨细胞在UC和克罗恩病 (CD) 患者的介质组织中丰富.
- 缺乏阿德罗宾的小鼠表现出自发性结肠炎和M2 → M1巨细胞极化失衡.
- 氨酸缺乏会使TNBS诱导的大肠炎恶化.
- 通过PPARγ调节脂质代谢,阿德罗宾治疗促进了M1到M2巨细胞的再极化.
结论:
- 氨酸缺乏导致结肠和介质体中的M1巨细胞表型失衡,导致大肠炎的发展.
- 阿德罗在调节巨细胞脂质代谢和两极分化方面发挥着至关重要的作用.
- 向阿德罗宾可能为炎症性肠道疾病提供治疗策略.
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