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从受伤的子宫内膜上皮细胞中获得的miR-331贫乏的外体细胞在子宫内膜炎期间促进巨细胞的激活

Kangfeng Jiang¹, Yajing Chen¹, Kui Wang¹

¹College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, Yunnan, China.

International journal of biological macromolecules

|August 23, 2024

概括

来自受伤子宫内膜细胞的外体通过降低miR-331,通过Notch1/IKKα通路激活巨细胞来促进炎症. 恢复miR-331抑制了这一轴,为子宫内膜炎提供了治疗点.

科学领域:

生殖生物学生殖生物学
细胞生物学细胞生物学
免疫学免疫学免疫学

背景情况:

外体细胞调解细胞间通信,并有助于炎症性疾病.
子宫内膜炎涉及子宫内膜的炎症,影响生殖健康.

研究的目的:

研究受损子宫内膜上皮细胞 (EECs) 的外体细胞在子宫内膜炎病变发生过程中的作用.
阐明这些外体因子诱导炎症的机制.

主要方法:

从受脂聚糖化物 (LPS) 损伤的EEC中分离和表征外体.
评估巨细胞对外体吸收和随后的炎症激活.
在外体和巨细胞中微RNA-331 (miR-331) 表达的分析.
在体外和体内实验来评估miR-331.1.的治疗潜力.

主要成果:

受到LPS损伤的EEC释放出激活巨细胞的外体,促进炎症.
受损EEC的外体显示下调的miR-331,这也减少了治疗的巨细胞.
这些外体的收养转移加剧了子宫内膜炎症,这种效应因miR-331过度表达而逆转.
miR-331的过度表达通过准Notch1/IKKα途径来抑制NF-κB p65酸化,从而降低了巨细胞的激活.
在体内,miR-331的上调与小鼠的巨细胞活化减少和子宫内膜炎进展减缓相关.

结论:

外体/miR-331/Notch1轴是子宫内膜炎中子宫内膜炎炎的关键调解器.
外体miR-331通过抑制Notch1/IKKα通路作为炎症抑制剂.
准这一轴为治疗子宫内膜炎提供了一个新的治疗策略.

关键词:

在子宫内膜炎中,子宫内膜炎.外基因组是外基因组的组成部分.这里是 miR-3311.

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