利波卡林2 (LCN2) Knockdown 调节Treg/Th17平衡以改善小鼠喘的情况
Le Xu1, Minkang Shi1
1Department of Pediatrics, Liyang People's Hospital, Liyang, JiangSu, 213300, People's Republic of China.
Journal of asthma and allergy
|December 19, 2023
概括
利波卡林2 (LCN2) 在儿童喘中升高. 在小鼠模型中降低LCN2水平改善了调控性T细胞/T辅助细胞17细胞平衡,并减少了炎症,这表明LCN2是潜在的治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 呼吸系统医学 呼吸系统医学
- 分子生物学分子生物学
背景情况:
- 喘严重影响儿童的生活质量和健康.
- 预计与免疫相关的蛋白质Lipocalin 2 (LCN2) 在喘中表达很高.
- 研究LCN2的作用对于理解儿科喘至关重要.
研究的目的:
- 在卵胺 (OVA) 诱导的喘小鼠模型中研究Lipocalin 2 (LCN2) 的作用.
- 为了确定LCN2倒置是否影响喘病理和免疫细胞平衡.
- 探索信号通路在LCN2媒介喘中的参与.
主要方法:
- 肺组织的组织病理学分析 (H&E染色).
- 流细胞计和ELISA用于评估调控性T (Treg) 和T辅助17 (Th17) 细胞平衡.
- qRT-PCR检测炎症因子和西部抹杀用于途径分析.
主要成果:
- 在喘患者和OVA诱导的喘小鼠中,LCN2被上调.
- 抑制LCN2改善了OVA诱导的肺病理,IgE水平和炎症细胞透.
- 降低LCN2恢复了Treg/Th17平衡,减少了炎症性细胞因子,并禁用了JNK通路.
结论:
- 在喘的小鼠模型中,LCN2敲击改善了Treg/Th17平衡,并减轻了炎症.
- 对JNK路径的LCN2无活化表明它参与了喘病因的产生.
- LCN2代表了小儿喘的一个潜在的新型治疗点.
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