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Hao He¹, Xia Zhu², Ping Deng³

¹College of Fisheries and Life Sciences, Shanghai Ocean University, Shanghai, 201306, China; Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, 430223, China.

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|February 22, 2025

概括

介质素-21 (IL-21) 在道鱼免疫力中起着关键作用. 这项研究在道鱼中确定和描述了IL-21,揭示了它在抗菌炎症反应中的关键功能.

科学领域:

免疫学免疫学免疫学
水产养殖是水产养殖的一种方式.
分子生物学分子生物学

背景情况:

介素-21 (IL-21) 是一种调节免疫细胞活动的细胞因子,对抗感染性炎症反应至关重要.
IL-21属于玛链 (γc) 家族,通过JAK-STAT,MAPK和PI3K通路传递信号.
了解IL-21在鱼类中的作用对于水产养殖健康和疾病管理至关重要.

研究的目的:

在道鱼 (Ictalurus punctatus) 中识别和鉴定Interleukin-21 (IL-21).
在不同的感染条件下研究道鱼IL-21 (IpIL-21) 的表达模式.
阐明IpIL-21在道鱼免疫反应中的功能作用.

主要方法:

在道鱼中对IL-21基因的序列分析.
定量PCR (qPCR) 用于分析IPIL-21在各种组织和感染下的表达.
在体外实验中使用重组IpIL-21 (rIpIL-21) 评估其对道鱼脏细胞 (CCK) 免疫基因表达的影响.

主要成果:

确定了IpIL-21的编码序列,编码具有保存结构特征的145氨基酸蛋白.
IpIL-21的表达在和脏中最高,并且受到细菌和病毒感染的上调.
多I:C刺激增加了CCK细胞中的IpIL-21表达,而rIpIL-21则以剂量依赖的方式调节了各种免疫相关基因的表达.

结论:

IpIL-21 是道鱼中重要的免疫因子,特别涉及抗菌炎症反应.
这项研究提供了对鱼类IL-21介导免疫的分子机制的见解.
这些发现有助于理解鱼类的免疫系统,并制定水产养殖中抗病的策略.

关键词:

海海的鱼是一种鱼.基因表达基因表达基因表达它们是IL-21和IL-21.免疫反应的免疫反应.炎症因素炎症因素

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