NOTCH4通过AP1和IRF4-JMJD3轴增强M2替代巨细胞中IL-13诱导的遗传程序
Susana López-López1,2, María José Romero de Ávila1, María Julia González-Gómez1
1CRIB/Biomedicine Unit, Medical School, University of Castilla-La Mancha/CSIC, C/Almansa 14, 02008 Albacete, Spain.
International immunology
|July 21, 2023
概括
介素-13 (IL-13) 信号激活M2巨细胞,但过度激活会导致喘. 这项研究确定NOTCH4受体是这个过程中的关键调节器,这表明它是过敏呼吸道炎症的潜在治疗标.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- 互白素-13 (IL-13) 信号驱动M2巨细胞两极分化,对于组织修复至关重要,但与喘等病理有关.
- 失调的IL-13信号传递有助于严重的过敏气道炎症和喘病原体.
研究的目的:
- 研究NOTCH4受体在IL-13-介导的M2巨细胞激活中的作用.
- 阐明NOTCH4影响巨细胞IL-13诱导基因表达的分子机制.
主要方法:
- 研究了NOTCH4受体表达及其通过IL-13信号通路的调节.
- 使用分子生物学技术分析了NOTCH4对IL-13诱导的巨细胞基因表达的影响.
- 研究了Janus激酶 (JAKs),AP1,IRF4和JMJD3在NOTCH4中介信号传递中的作用.
主要成果:
- NOTCH4受体表达是由IL-13通过Janus激酶和AP1活性诱导的.
- 在巨细胞中,NOTCH4信号传递对IL-13驱动的基因表达程序至关重要,包括喘相关基因 (ARG1,YM1,CCL24,IL-10,CD-163).
- NOTCH4通过增强IRF4和AP1活性来调节IL-13诱导的基因表达,部分通过JMJD3.
结论:
- NOTCH4受体在IL-13对巨细胞的替代激活中发挥着重要作用.
- NOTCH4信号传递有助于M2驱动的炎症反应的发病,例如过敏性喘.
- NOTCH4成为治疗喘等炎症性疾病的潜在治疗点.
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