1-Oleoyl-lysophosphatidylethanolamine刺激了TH17细胞中的RORγt活动
Yusuke Endo1,2,3, Toshio Kanno1, Takahiro Nakajima1
1Department of Frontier Research and Development, Laboratory of Medical Omics Research, Kazusa DNA Research Institute, 2-6-7 Kazusa Kamatari, Kisarazu, Chiba 292-0818, Japan.
Science immunology
|August 4, 2023
概括
1-oleoyl-lysophosphatidylethanolamine通过调节RORγt活性来促进T助手17 (TH17) 细胞的分化. 这种脂质代谢物对介素-17 (IL-17) 生产和TH17细胞的致病性至关重要,影响自身免疫性疾病模型.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 辅助T细胞17 (TH17) 细胞分化对于适应性免疫和自身免疫性疾病至关重要.
- 代谢途径,特别是脂肪酸生物合成,影响T17细胞功能,但具体的调节者仍然不清楚.
研究的目的:
- 识别调节TH17细胞分化和功能的脂质代谢物和酶.
- 阐明1-oleoyl-lysophosphatidylethanolamine在TH17细胞生物学和致病性中的作用.
主要方法:
- 基于CRISPR的查和公正的脂管学分析被用来确定关键的分子参与者.
- 使用了TH17细胞分化试验和实验性自身免疫脑膜炎 (EAE) 鼠标模型.
主要成果:
- 1-Oleoyl-lysophosphatidylethanolamine被确定为TH17细胞中RORγt活性的脂质调节剂.
- 包括Pla2g12a在内的五种酶参与了对Il17a转录至关重要的甘氨酸脂代谢.
- 缺乏Pla2g12a减少了1-oleoyl-lysophosphatidylethanolamine,取消了IL-17的产生,并保护了小鼠免受EAE的影响.
结论:
- 1-Oleoyl-lysophosphatidylethanolamine是一种关键的脂质代谢物,驱动着RORγt介导的TH17细胞分化和致病性.
- 针对像Pla2g12a这样的酶,为TH17驱动的自身免疫疾病提供了潜在的治疗策略.
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