来自Hexagrammos otakiii的Collectin-10的病原细菌防御和补充激活功能分析
Haidong Zha1, Haoyue Zhang1, Jinmiao Zhong1
1Marine College, Shandong University (Weihai), Weihai, 264209, China.
Fish & shellfish immunology
|July 24, 2023
概括
研究人员确定了Hexagrammos otakii collectin-10 (HoCL-10),一种新的抗菌分子. 这种蛋白质增强了巨细胞的功能,有助于对抗细菌感染的宿主防御,为水产养殖疾病管理提供了潜力.
科学领域:
- 水产养殖免疫学 水产养殖免疫学
- 这是天生的免疫力.
- 鱼类疾病耐药性 鱼类疾病耐药性
背景情况:
- 强化养殖Hexagrammos otakii的水产养殖会增加细菌疾病的风险.
- 需要新的抗菌分子来对抗这些疾病.
研究的目的:
- 在H. otakii. 中识别和表征一个集合因-10同类物 (HoCL-10) .
- 研究HoCL-10在天生的免疫和宿主防御中的功能.
主要方法:
- 对HoCL-10的cDNA克隆和序列分析.
- 定量逆转录PCR (qRT-PCR) 用于基因表达分析.
- 重组蛋白表达和功能测定 (结合,细胞,迁移).
- 为了蛋白质相互作用,ELISA和远西部斑点.
- 在体内研究涉及抗体注射和细菌挑战.
主要成果:
- HoCL-10的mRNA表达在肝脏和皮肤中最高,由脂多糖 (LPS) 诱导.
- 再组合的HoCL-10 (rHoCL-10) 与病原体相关的分子模式 (PAMP) 和细菌结合.
- rHoCL-10增强了巨细胞的细胞分裂和迁移.
- 在体内,HoCL-10与曼诺结合性莱克相关的血清蛋白酶 (MASP-1,2) 相互作用,并影响膜攻击复合体 (MAC).
- HoCL-10有助于宿主防御对抗细菌的挑战.
结论:
- 在H. otakii. 中,HoCL-10是先天免疫系统的关键组成部分.
- HoCL-10的功能很可能是通过对病原体进行位并激活补体系统来发挥作用.
- HoCL-10代表了提高养殖鱼类抗病能力的潜在目标.
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