脱二元化通过上调IκBα调节,减轻人体子宫内膜层细胞中类似收费受体介导的炎症反应
Mancy Tong1, Jacy N Scott1, Shannon D Whirledge1
1Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT 06510, USA.
Journal of reproductive immunology
|July 14, 2023
概括
人体子宫内膜层细胞 (EnSCs) 在决定化过程中对病毒和细菌成分的炎症反应减弱. 这种免疫调节对于怀孕成功至关重要,并且涉及增加NFKBIA调节.
科学领域:
- 生殖免疫学 生殖免疫学
- 细胞和分子生物学是细胞和分子生物学.
- 这是天生的免疫力.
背景情况:
- 子宫内膜层细胞 (EnSCs) 通过决定化对怀孕至关重要.
- 在决定化过程中对病原体的子宫免疫反应尚不清楚.
- EnSC功能对于植入和怀孕维持至关重要.
研究的目的:
- 在决定化过程中调查人类EnSC对病毒和细菌成分的反应.
- 为了确定子宫天生的免疫反应在决定化过程中是否发生变化.
- 阐明在决定EnSCs的改变免疫反应的基础上的分子机制.
主要方法:
- 在人体EnSCs的体外和体内决定化模型.
- 用病毒双链RNA [Poly (I:C) ]和细菌脂聚糖 (LPS) 的刺激.
- 测量促炎性细胞因子和化学因子的产生.
- 对NFKBIA转录和NFκB信号通路的分析.
主要成果:
- 聚 (I:C) 和LPS诱导了未分离的EnSC中强大的炎症反应.
- 脱二化显著抑制了这些免疫反应,无论是体外还是体内.
- 减弱反应与增加的NFKBIA转录和核因子卡帕B (NFκB) 抑制剂α积累相关.
- NFKBIA积累抑制了NFκB p65的核转位和Toll类受体信号传递.
结论:
- 人类EnSCs在决定化过程中表现出抑制的炎症反应,这种机制可能会保护半异质胚胎.
- 子宫内膜免疫反应因月经周期阶段和细胞分化状态而异.
- 考虑这些因素对于未来对子宫内膜炎症反应的研究至关重要.
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