肠道微生物群和宿主新陈代谢之间的多omics关联模式,这些新陈代谢发生在被微塑料暴露在现场的过鱼中
Jun-Nan Huang1, Cong-Cong Gao1, Hong-Yu Ren1
1Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China.
Environment international
|March 6, 2025
概括
微塑料改变鱼的肠道微生物,影响宿主新陈代谢,特别是氨基酸通路,穿过肠-肝-肌肉轴. 这项研究揭示了微塑料污染如何通过微生物组和代谢变化影响鱼类健康.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 鱼类生物学 鱼类生物学
背景情况:
- 微塑料 (MP) 是普遍存在的环境污染物.
- 国会议员可以破坏鱼的肠道微生物群和宿主新陈代谢.
- 肠道微生物群在调解MP诱导的代谢变化的作用尚未完全理解.
研究的目的:
- 调查环境相关的微塑料对肠道微生物群和银鱼宿主代谢的影响.
- 阐明肠道微生物群在介导微塑料诱导的沿肠-肝-肌肉轴的代谢变化中的作用.
- 揭示受微塑料暴露影响的特定代谢途径.
主要方法:
- 在现场暴露银鱼的微塑料.
- 多种奥米克分析 (元基因组学,转录组学,代谢组学).
- 在没有细菌的斑马鱼中移植便微生物群.
主要成果:
- 微塑料暴露重塑了银的肠道微生物群社区结构.
- 权重基因共同表达网络分析确定了激活的乌比金和其他类类生物合成和氨酸代谢.
- 便微生物种移植证实了特定微生物基因和氨酸代谢在中介微塑料效应中的作用.
- 微塑料暴露导致鱼肝脏和肌肉中的氨基酸代谢发生变化,与肝脏L-tyrosine增加有关.
结论:
- 微塑料暴露显著改变了银的肠道微生物组合.
- 主体新陈代谢,特别是氨基酸新陈代谢,由于暴露于微塑料,在肠-肝-肌肉轴上受到影响.
- 肠道微生物群在调解鱼类对微塑料污染的代谢反应方面发挥着至关重要的作用.
相关概念视频
Introduction to the Human Microbiota
Microorganisms colonize various regions of the human body, including the mouth, nasal passages, throat, stomach, intestines, urogenital tract, and skin. The total number of microbial cells is estimated to range from 10¹³ to 10¹⁴—comparable to, or exceeding, the number of human somatic cells. This host–microbiome relationship has led to the conceptualization of humans as supraorganisms, wherein microbial communities perform vital roles in development, immunity, and disease...
Microbial Bioremediation of Plastics
Polyethylene terephthalate (PET) is a synthetic polymer widely utilized in the packaging industry, particularly for bottles and containers. Due to its chemical stability and durability, PET accumulates in the environment, contributing significantly to plastic pollution. It comprises repeating units of terephthalic acid and ethylene glycol, resulting in a semi-crystalline structure that is resistant to natural degradation processes.A notable breakthrough in plastic biodegradation came with the...


