饮食微生物群的改变限制了面粉的实验进化的免疫原始反应,但不是病原体耐药性
Arun Prakash1, Deepa Agashe1, Imroze Khan2
1National Centre for Biological Sciences, Tata Institute of Fundamental Research, GKVK Campus, Bengaluru, Karnataka, India.
Journal of evolutionary biology
|September 2, 2023
概括
改变饮食微生物破坏了Tribolium castaneum甲虫的免疫启动. 这种微生物操纵也减少了原始甲虫的繁殖和寿命,但不是构成性耐药的甲虫,显示不同的免疫策略依赖于微生物组.
科学领域:
- 进化生物学是进化的生物学.
- 免疫学 免疫学 免疫学
- 微生物学 微生物学
背景情况:
- 与宿主相关的微生物群对于免疫系统的发育和功能至关重要.
- 关于微生物群在进化免疫策略中的作用的直接实验证据是有限的.
- 甲甲虫 (Tribolium castaneum) 甲虫提供了一个模型来研究进化的免疫反应,如免疫原始化和基底抵抗.
研究的目的:
- 为了研究微生物群操纵对Tribolium castaneum进化免疫反应的影响.
- 为了比较依赖微生物群的诱导性免疫原始化与构成性基本抵抗的依赖.
- 评估不同免疫策略的甲虫微生物群变化的健康后果 (繁殖,寿命).
主要方法:
- 使用了经过实验进化的Tribolium castaneum系列,具有不同的免疫策略 (免疫原始化与基底抵抗).
- 通过对小麦面粉进行紫外线照射,改变了饮食中的微生物群落.
- 在微生物群操纵后,评估了安装免疫启动和基底抵抗的能力.
- 测量生殖产量和感染后的寿命,以评估健康影响.
主要成果:
- 饮食微生物群的改变导致了对这种反应进化的甲虫免疫原始化能力的丧失.
- 微生物群操纵显著降低了免疫培养甲虫的生殖产量和感染后的寿命.
- 耐病原体甲虫 (构成性耐药性) 在微生物群变化后对生存或繁殖没有显著影响.
- 甲虫系的不同免疫进化与对微生物群的差异依赖相关.
结论:
- 诱导性免疫原始化的能力取决于特定的饮食微生物群.
- 与可诱导反应相比,构成性免疫抵抗可能不那么依赖微生物群.
- 宿主免疫策略与它们的相关微生物组一起演变,影响健康结果.
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