转录组分析揭示了神经活性受体基因对鱼,Oreochromis niloticus的Streptococcus agalactiae感染的反应
Xitan Hou1, Haokai Shi2, Yan Jiang3
1Institute of Forensic Medicine and Laboratory Medicine, Jining Medical University, Jining, China.
Fish & shellfish immunology
|September 18, 2023
概括
这项研究调查了尼罗河鱼在细菌感染期间的神经内分泌-免疫系统相互作用. 关键的神经活性受体基因表现出差异性表达,揭示了对远鱼免疫反应的新见解.
科学领域:
- 比較免疫學 比較免疫學
- 神经内分泌学神经内分泌学
- 遥远的鱼类研究研究.
背景情况:
- 在致病性感染期间,尼罗河鱼 (Oreochromis niloticus) 中的神经内分泌和免疫系统之间的相互作用尚未得到充分理解.
- 杆菌 (Streptococcus agalactiae) 是一种重要的病原体,在鱼类中引起脑膜炎.
研究的目的:
- 为了阐明O. niloticus对S. agalactiae感染的反应中的头转录特征.
- 识别和描述参与宿主的免疫反应的神经活性受体基因.
主要方法:
- 在感染S. agalactiae后的四个时间点对O. niloticus头的转录组分析.
- KEGG通路分析以确定丰富的通路,重点关注神经活性联体受体相互作用.
- 克隆和特征选定的神经活性受体基因,并检查其表达模式,以应对S. agalactiae和Aeromonas hydrophila.
主要成果:
- 总共有2528个差异表达的基因被确定,在"神经活性联体受体相互作用"途径中显著丰富.
- 六个神经活性受体基因 (lepr,nr3c1,ptger4,thrb,tspo和β2-ar) 进行了表征,发现它们在T细胞和巨细胞等免疫细胞中得到表达.
- 在S. agalactiae和A. hydrophila感染后,在多个组织中观察到lepr,ptger4,tspo和β2-ar的升级,而nr3c1和thrb显示出不同的反应.
结论:
- 这项研究揭示了尼罗河在细菌感染期间的神经内分泌信号和尼罗河的免疫系统之间的显著交叉声.
- 特定的神经活性受体基因在调解远鱼对病原体的免疫反应中起着至关重要的作用.
- 这些发现为了解鱼类的神经免疫相互作用和开发新型疾病管理策略提供了基础.
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