斑马鱼的减少转录组分析揭示了支链酶体和核糖体生物合成的破坏者
Shaoqi Zuo1, Haochun Shi1, Yao Zu2
1State Environmental Protection Key Laboratory of Environmental Health Impact Assessment of Emerging Contaminants, School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
The Science of the total environment
|September 3, 2024
概括
环境化合物可以破坏结合体和核糖体的生物合成,导致疾病. 这项研究使用斑马鱼 (Danio rerio) 来识别影响这些基本细胞过程的环境破坏者.
科学领域:
- 环境毒理学环境毒理学
- 分子生物学分子生物学
- 基因组学就是基因组学.
背景情况:
- 功能障碍的结合体和核糖体会破坏蛋白质合成,导致疾病.
- 遗传因素得到了很好的研究,但对生物合成的环境影响不太了解.
研究的目的:
- 识别破坏结合体和核糖体生物合成的环境化合物.
- 为了理解这些化合物的转录效应,使用斑马鱼模型.
主要方法:
- 减少的转录组分析 (RTA) 集成大规模的斑马鱼转录组数据.
- 专注于一个特定的斑马鱼基因组,用于结合体和核糖体通路.
- 分析了118种环境物质和1400种基因表达特征的转录组数据.
主要成果:
- 确定了PCB126,过渡金属 (La,Pr),重金属 (Cd2+,AgNO3) 和阿特拉作为重要的转录破坏物.
- 在不同类型的化合物中观察到不同的,但重叠的转录模式.
- 在斑马鱼器官和发育阶段的转录反应中发现了显著的差异.
结论:
- 环境化合物可以显著改变结合体和核糖体生物合成途径.
- 斑马鱼模型有效地识别和描述这些基本细胞过程的环境破坏者.
- 这些发现有助于对化学化合物的环境风险评估.
相关概念视频
Ribosome Profiling
3.5K
Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
3.5K
Riboswitches
8.1K
Riboswitches are non-coding mRNA domains that regulate the transcription and translation of downstream genes without the help of proteins. Riboswitches bind directly to a metabolite and can form unique stem-loop or hairpin structures in response to the amount of the metabolite present. They have two distinct regions – a metabolite-binding aptamer and an expression platform.
The aptamer has high specificity for a particular metabolite which allows riboswitches to specifically regulate...
The aptamer has high specificity for a particular metabolite which allows riboswitches to specifically regulate...
8.1K


