气候变化可以通过低氧介导对适应性免疫力的影响,损害鱼的细菌病原体防御能力
Robine H J Leeuwis1, Jennifer R Hall2, Fábio S Zanuzzo1
1Department of Ocean Sciences, Memorial University of Newfoundland, St. John's, NL, A1C 5S7, Canada.
Developmental and comparative immunology
|March 23, 2024
概括
气候变化引起的低氧水平 (低氧) 会损害鱼类的适应性免疫力. 低氧防止了白鱼免疫球蛋白M (IgM) 的增加,这表明对鱼类免疫能力存在严重威胁.
科学领域:
- 水生物质毒理学研究
- 鱼类免疫学 鱼类免疫学
- 气候变化影响气候变化的影响.
背景情况:
- 由于全球变暖和高化,水中缺氧正在增加.
- 低氧对鱼类健康和抗病能力的影响尚不清楚.
- 鱼是生态和经济上重要的北太平洋物种.
研究的目的:
- 评估低氧对鱼免疫功能的长期影响.
- 为了研究缺氧对对细菌疫苗的免疫反应的影响.
- 为鱼免疫学开发一种特定物种的方法工具箱.
主要方法:
- 在6至16周的时间里,鱼被暴露在正常氧或缺氧中.
- 开发了16个免疫基因的qPCR原料.
- 通过ELISA测量血液抗菌防御,免疫球蛋白M (IgM) 水平,并使用流细胞计和共聚焦显微镜.
主要成果:
- 天生的免疫参数随着细菌抗原暴露而增加,但不受缺氧的影响.
- 低氧完全抑制了疫苗接种后血液IgM水平的增加.
- 在低氧条件下,自适应性免疫显著受损.
结论:
- 缺氧对鱼类的免疫能力构成严重威胁,即使在像鱼这样的自然耐受性物种中也是如此.
- 气候变化导致的脱氧可能会损害鱼类的健康和抗病能力.
- 适应性免疫反应,特别是抗体的产生,容易受到缺氧的影响.
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