皮质介质素-1 类受体-1 激活是因介质素-33 异型和喘相关受体变异的条件
Michael A Portelli1, Maria E Ketelaar2,3, Stewart Bates4
1Centre for Respiratory Research, National Institute for Health Research Nottingham Biomedical Research Centre, School of Medicine, Biodiscovery Institute, University of Nottingham, Nottingham, UK.
相互作用素-33受体 (IL1RL1) 的遗传变异影响了喘风险. 特定的IL-33异型,特别是分裂的形式,激活IL1RL1信号,建议喘患者有风险单元型的向治疗.
科学领域:
- 免疫学 免疫学 免疫学
- 遗传学 是一个遗传学.
- 呼吸系统医学 呼吸系统医学
背景情况:
- 在喘病变发生过程中,介质素-33/介质素-1 类似受体-1 (IL-33/IL1RL1) 途径至关重要.
- 在IL1RL1中非同义的遗传多态性与喘易感性有关.
研究的目的:
- 研究IL1RL1遗传变异如何影响IL1RL1信号传递.
- 确定不同IL-33异型对喘中的IL1RL1激活的影响.
主要方法:
- 用不同的IL-33异型刺激了表达IL1RL1的HEK293细胞.
- 测量了分泌的胚胎酸酸酶 (SEAP) 活性和IL-8水平.
- 来自不同基因型载体的原发性人类支气管上皮细胞 (HBEC) 也被IL-33.3刺激.
主要成果:
- 在HEK293细胞中的IL1RL1风险单元型显示出最大的IL-33驱动信号传递.
- 所有的IL-33异型激活IL1RL1,分裂形式 (IL3395-270,IL33106-270) 具有最显著的效果.
- 这些发现在初级HBEC中得到复制,证实了基因变异在IL1RL1信号传递中的作用.
结论:
- 具有IL1RL1风险单元型的喘患者可能从向IL-33/IL1RL1通路的治疗中受益.
- 肺微环境中高水平的分裂IL-33异型可能会增强IL1RL1通路的激活.
- 特定的分裂IL-33异型 (IL3395-270,IL33106-270) 是喘治疗的潜在标.
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