circ-0001875下调与严重喘中M1巨细胞激活和肺炎有关
Gege Liu1, Jiahao Cao1, Yiyan Lin1
1Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.
Frontiers in immunology
|July 15, 2025
概括
下调的circ-0001875通过通过miR-31-5p/SP1轴促进M1巨分化,加剧严重的喘,有助于促炎反应.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 喘是一种复杂,异质的呼吸系统疾病.
- 不调节的循环RNAs (circRNAs) 在严重喘发病的作用,特别是在巨细胞两极分化中,尚未完全理解.
研究的目的:
- 研究circRNAs调节严重喘中的巨细胞极化机制.
- 确定涉及严重喘的特定circRNA并阐明它们的分子途径.
主要方法:
- 来自严重喘患者的外周血液单核细胞 (PBMC) 的高通量RNA测序.
- 使用RT-qPCR,ELISA和西方涂料分析circRNA表达,巨细胞极化标记物和炎症因子.
- 通过双 luciferase 记者测试对circ-0001875,miR-31-5p 和SP1 调控网络的研究.
主要成果:
- 在严重喘患者的PBMC中,与健康对照组相比,有420个circRNA的表达差异.
- 在小鼠模型中,circ-0001875在严重喘中显著下调,并抑制了M1巨细胞激活和肺炎.
- circ-0001875竞争性结合miR-31-5p,促进SP1转化,然后通过NF-κB通路抑制M1巨细胞极化.
结论:
- circ-0001875在调节M1巨细胞极化方面发挥着至关重要的作用.
- circ-0001875的失调有助于在喘中观察到的严重的炎症反应.
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