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通过METTL3介导的N6 - - 甲基氨酸修饰调节了慢性支性耳中炎中NLRP3炎症酶的激活

Yuanyuan Yang¹, Jianxin Qiu²

¹Department of Otolaryngology, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, Anhui, China; Department of Otolaryngology, Fuyang Hospital Of Anhui Medical University, Fuyang 236113, Anhui, China; Department of Otolaryngology, Peking University Shenzhen Hospital, Shenzhen 518036, China.

Hearing research

|October 12, 2025

概括

通过METTL3介导的m6 一种修改驱动慢性支性耳中炎 (CSOM) 的NLRP3炎症酶激活. 针对这种METTL3/NLRP3途径为CSOM提供了潜在的新治疗方法.

科学领域:

分子生物学分子生物学
免疫学免疫学免疫学
耳鼻喉科耳鼻喉科耳鼻喉科

背景情况:

慢性性耳中炎 (CSOM) 是一种普遍存在的炎症性耳部疾病.
NLRP3炎症酶与CSOM病原发生有关.

研究的目的:

研究METTL3和N6-甲基氨酸 (m6A) 在CSOM中NLRP3炎症酶激活中的作用.
在CSOM炎症中阐明METTL3/NLRP3轴.

主要方法:

使用脂聚糖 (LPS) 建立了一个CSOM小鼠模型.
分析了中耳组织的炎症性细胞因子 (TNF-α,IL-1β,IFN-γ,IL-6) 和与A相关的基因.
评估了METTL3对NLRP3mRNA稳定性和炎症酶活性的调节作用.

主要成果:

过度表达METTL3提高了m6A水平和NLRP3mRNA稳定性,增强了炎症酶激活和细胞因子的产生.
抑制METTL3会降低NLRP3的表达和炎症酶的活性.
通过NLRP3.3,NLRP3过度表达和MCC950抑制证实了METTL3的作用.

结论:

在CSOM中,对NLRP3炎症酶激活至关重要的一种修改是METTL3-介导的m⁶.
METTL3/NLRP3轴代表了CSOM治疗的一个有前途的治疗目标.

关键词:

慢性充性中耳炎的中耳炎在METTL3中,METTL3是METTL3的第一个类型.N(6) - - 甲基氨酸.在NLRP3炎症酶体中,NLRP3炎症

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