在失生过程中产生的英多尔介导宿主-微生物化学通信
Rui-Qiu Yang1, Yong-Hong Chen1, Qin-Yi Wu2
1State key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming, China.
eLife
|November 21, 2023
概括
肠道失生症会触发老化的虫的防御机制. 细菌产生的内醇信号激活DAF-16,上调溶酶以限制细菌生长并保持宿主健康.
科学领域:
- 微生物学 微生物学
- 衰老研究研究 衰老研究
- 主体与微生物的相互作用
背景情况:
- 肠道失调,肠道微生物群的不平衡,显著影响宿主生理.
- 宿主在失生症期间保持健康的机制尚未得到充分理解.
- 老化肠道中的细菌繁殖,比如Caenorhabditis elegans中的大肠杆菌,是失生症的一个关键方面.
研究的目的:
- 为了阐明宿主在衰老过程中对肠道失生症的防御机制.
- 为了确定信号通路涉及到维护生物体健康在异位生物条件下.
- 了解微生物代谢物在宿主微生物相互作用中的作用.
主要方法:
- 利用*Caenorhabditis elegans*作为一个模型生物来研究衰老和肠道失调.
- 研究了DAF-16转录因子在对大肠杆菌增殖的反应中的激活.
- 分析了酶 (lys-7,lys-8) 在限制细菌积累中的作用.
- 检查了涉及英多尔,TRPA-1和DAF-16激活的信号通路.
主要成果:
- 大肠杆菌的逐步肠道增殖在老化的虫中激活了DAF-16.
- DAF-16上调解溶酶 (lys-7,lys-8),限制肠道中的细菌生长.
- 在失生症期间增加的醇水平通过神经元中的TRPA-1激活DAF-16.
- 在肠道失生症期间,Indole作为微生物信号,调解宿主健康状况.
结论:
- 宿主采用DAF-16依赖途径来对抗与年龄相关的肠道失调.
- 印作为一种关键的微生物信号,将肠道失调与宿主防御和健身维护联系起来.
- 这项研究揭示了一种新的宿主-微生物通信机制,用于在衰老过程中保持健康.
关键词:
这里是C. elegans.这是一架DAF-16飞机.美国大肠杆菌 (E. coli).在TRPA-1中,它是TRPA-1.生物化学 生物化学化学生物学 化学生物学肠道失调症是一种肠道失调症.印度尔 (Indole) 是一种制剂.传染病是一种传染性疾病.微生物学的微生物.更多相关视频
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