LRRC8A驱动NADPH氧化酶介导的线粒体功能障碍和炎症在过敏性鼻炎
Linghui Meng1,2, Dingqian Hao1,2, Yuan Liu1,3
1Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Shandong University, Jinan, 250000, Shandong, China.
Journal of translational medicine
|November 16, 2024
概括
富含白的重复含有蛋白8A (LRRC8A) 通过增加反应性氧物种和激活NF-κB通路来驱动过敏性鼻炎 (AR) 炎症. 准LRRC8A可能为AR治疗提供新的治疗策略.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 病理学 病理学 病理学
背景情况:
- 过敏性鼻炎 (AR) 是一种复杂的炎症疾病,有多种原因.
- 富含白素的重复含有蛋白8A (LRRC8A) 与细胞稳定性和免疫调节有关,但其在AR中的作用尚不清楚.
研究的目的:
- 研究LRRC8A在过敏性鼻炎 (AR) 炎症中的作用.
- 阐明LRRC8A在AR病变发生过程中的潜在分子机制.
主要方法:
- 分析了AR患者的LRRC8A表达,使用qRT-PCR和西式涂抹.
- 建立了体外Th2炎症和体内OVA诱导的AR模型.
- 利用LRRC8A淘汰/过度表达和特定抑制剂 (GKT137831,DCPIB) 来探索机制.
主要成果:
- 在AR患者中,LRRC8A表达显著升高,与炎症标志物相关.
- 在体外,LRRC8A过度表达导致NOX1/NOX4增加,线粒体功能障碍和NF-κB激活.
- 在体内,LRRC8A敲击降低了乙酸的透和关键炎症介导体.
结论:
- LRRC8A通过上调NADPH氧化酶子单元来促进AR炎症,导致ROS过量产生和线粒体功能障碍.
- LRRC8A激活NF-κB通路,从而导致鼻膜炎症.
- LRRC8A对过敏性鼻炎具有潜在的治疗标.
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