识别参与神经刺激的竞争性内源RNA网络,防止机械通风诱导的隔膜功能障碍
Mingming Zhang1, Fangyuan Li1, Min Wang1
1Department of Critical Care Medicine, Heping Hospital Affiliated to Changzhi Medical College, 110 South Yan'an Road, Luzhou District, Changzhi, 046012, China.
Scientific reports
|December 15, 2025
概括
神经刺激 (PNS) 通过调节竞争性RNA网络来缓解呼吸器诱导的隔膜功能障碍 (VIDD),特别针对自和免疫反应. 这项研究揭示了新型的分子机制,这些机制是 PNS 对隔膜缩和失败的保护的基础.
科学领域:
- 生物化学和分子生物学
- 身体生理学 身体生理学
- 基因组学就是基因组学.
背景情况:
- 风扇诱导的隔膜功能障碍 (VIDD) 导致隔膜缩和衰竭,增加死亡率和ICU停留时间.
- 神经刺激 (PNS) 可以保持隔膜活动,但其分子机制尚不清楚.
- 竞争的内源RNA (ceRNA) 网络调节基因表达,可能在VIDD中发挥作用.
研究的目的:
- 调查ceRNA网络在PNS介导的保护中对VIDD的作用.
- 确定参与VIDD病原和PNS反应的关键分子参与者和途径.
- 阐明PNS保护隔膜功能的机制.
主要方法:
- 集成的miRNA-Seq和RNA-Seq分析在机械通风 (MV) 的子模型中,有或没有PNS.
- 生物信息预测和构建一个ceRNA网络.
- 使用双露西法酶试验验的miRNA-目标相互作用的验证.
- 不同表达基因的功能丰富分析 (GO,KEGG).
主要成果:
- 机械通风显著失调膜miRNAs,circRNAs和mRNAs,通过PNS部分逆转.
- 确定了一个ceRNA网络,突出了miR-500-3p (准RAB37) 和miR-133b-3p (准L-选择素) 作为关键调节器.
- PNS恢复了下调的miR-500-3p和miR-133b-3p,这些基因是参与自和免疫反应的向基因.
- 双露西法酶测定证实了这些miRNA与它们各自的点RAB37和L-selectin的直接结合.
结论:
- 通过调节ceRNA网络,PNS保持隔膜功能,抑制过度的自和免疫细胞透.
- 在VIDD中,miR-500-3p-RAB37和miR-133b-3p-L-选择因轴对调节自和免疫反应至关重要.
- 这项研究提供了对VIDD病变的机制性见解,并确定了对隔膜功能障碍的潜在治疗标.
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