分子克隆,生物描述和 Ajfos 转录因子的功能分析在病原体诱导的 Apostichopus japonicus 中
Yuan Ren1, Yongping Xu1, Zhenhui Wang2
1School of Bioengineering, Dalian University of Technology, Dalian 116024, PR China.
概括
海黄c-Fos (Ajfos) 蛋白质对免疫反应至关重要,特别是在细菌挑战期间促进囊泡光细胞的增殖. 沉默Ajfos阻碍了这种增殖,突出了其在皮免疫力中的作用.
科学领域:
- 海洋生物学 海洋生物学
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 激活蛋白-1 (AP-1) 转录因子,包括c-Fos,调节重要的细胞过程.
- 在无脊椎动物,特别是皮动物中c-Fos的作用仍然在很大程度上未被探索.
研究的目的:
- 克隆和描述来自海黄瓜Apostichopus japonicus (Ajfos) 的c-Fos基因.
- 调查Ajfos在海黄瓜对细菌感染的免疫反应中的表达模式和功能作用.
主要方法:
- 全长 Ajfos 基因克隆和序列分析.
- 定量PCR (qPCR) 用于确定组织特异性表达和在Vibrio splendidus挑战时的变化.
- 在体内RNA干扰 (RNAi) 用于使Ajfos沉默,并评估其对胆固醇细胞增殖的影响.
主要成果:
- 阿夫索斯成功克隆,揭示了一个保存的基本素拉链 (bZIP) 域.
- 在所有组织中检测到Ajfos表达,在胆红细胞中最高水平.
- 在Vibrio splendidus感染后,Ajfos表达在凝血细胞和囊泡光细胞中显著增加.
- 沉默Ajfos降低了感染后囊泡光细胞中与增殖相关的基因表达和增殖率.
- 在细菌挑战期间,Ajfos在囊泡光细胞的增殖中发挥着关键作用.
结论:
- 阿夫索斯 (Ajfos) 参与海的免疫反应.
- 阿杰福斯促进了囊泡光细胞的增殖,以应对细菌刺激.
- 这项研究提供了对Ajfos在皮动物中的作用的初步见解.
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