MiR-214_L-1R+4通过Cyprinus carpio中的MyD88依赖信号通路调节gossypol诱导的免疫反应
Hui Li1, Xinyu Jiang1, Shuying Zhang1
1College of Fisheries, Henan Normal University, Engineering Lab of Henan Province for Aquatic Animal Disease Control, Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Province, PR China.
Fish & shellfish immunology
|July 3, 2024
概括
微RNAs (miRNAs) 调节鱼类对棉花中的毒素gossypol的免疫反应. miR-214_L-1R+4通过鱼脏中的MyD88信号通路调节这种免疫反应.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 水生毒理学 水生毒理学
背景情况:
- 微RNAs (miRNAs) 是免疫系统的关键调节者.
- 棉花粉是水产料中的蛋白质来源,含有对水生动物有害的毒素gossypol.
- 在暴露于gossypol压力的鱼类中miRNAs的作用研究不足.
研究的目的:
- 为了研究miRNAs对Cyprinus carpio (鱼) 中的gossypol毒性的调节作用.
- 阐明miR-214_L-1R+4在暴露于gossypol的免疫反应中的特定作用.
主要方法:
- 对Cyprinus carpio进行口服gossypol,然后进行组织分析.
- miRNA测序以识别差异表达的miRNAs.
- 双露西法酶记者测定以确认miRNA-目标相互作用.
- 用miR-214_L-1R+4抗米尔来评估其对基因表达的体内影响.
主要成果:
- 戈西波尔暴露导致脏指数,组织学和鱼的免疫酶活性发生显著变化.
- miRNA测序确定了8种不同表达的miRNA,其中miR-214_L-1R+4与免疫反应有关.
- 发现miR-214_L-1R+4直接准并降低MyD88a的表达.
- 抑制miR-214_L-1R+4增加了MyD88a,炎症和抗炎性细胞因子的表达.
结论:
- miR-214_L-1R+4在调节Cyprinus carpio中对gossypol毒性的免疫反应中发挥着至关重要的作用.
- 该机制涉及鱼脏中的MyD88依赖信号通路.
- 这些发现提供了关于gossypol毒性的分子机制和水产养殖中潜在的miRNA基干预措施的见解.
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