单细胞RNA测序剖析细胞异质性和鱼对微塑料和纳米塑料的特定反应
Siwen Zheng1,2, Wen-Xiong Wang1,2
1School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China.
Environmental science & technology
|March 21, 2024
概括
微塑料 (MP) 和纳米塑料 (NP) 不同地影响着鱼. MPs主要影响巨细胞和纤维细胞,而NP则准T细胞,揭示了鱼对塑料污染的细胞异质性.
科学领域:
- 环境毒理学环境毒理学
- 水生生物学 水生生物学
- 细胞和分子生物学是细胞和分子生物学.
背景情况:
- 鱼很容易受到微塑料 (MP) 和纳米塑料 (NP) 的污染.
- 了解鱼对MP和NP的细胞反应至关重要,但仍然有限.
研究的目的:
- 为了研究鱼 (Oreochromis niloticus) 的细胞异质性,以应对MP和NP的暴露.
- 确定敏感的细胞类型和分子机制,这些机制是鱼中塑料颗粒毒性的基础.
主要方法:
- 单细胞RNA测序 (scRNA-seq) 用于在MP和NP暴露后分析鱼状细胞.
- 进行了差异基因表达分析,以确定受影响的细胞群和细胞通路.
主要成果:
- 巨细胞和T细胞分别是受MP和NP暴露影响最多的免疫细胞.
- 纤维细胞,特别是脂纤维细胞,对MPs表现出显著的敏感性,数量减少和基因表达改变.
- 暴露于MP破坏了各种状细胞类型之间的细胞间通信,包括纤维细胞和免疫细胞.
结论:
- 鱼在对MP和NP的反应中表现出显著的细胞异质性.
- 纤维细胞和特定的免疫细胞作为塑料颗粒毒性的敏感生物标志物.
- scRNA-seq为水生生物中的MP和NP的毒理机制提供了高分辨率的见解.
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