血有机酸暴露相关的microRNA表达特征及其在中国健康成年人中的功能分析
Xulin Zhang1, Zirui Zhang1, Yuxin Xu1
1Department of Occupational and Environmental Health, Key Laboratory of Environment and Health, Ministry of Education and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
Environmental research
|March 3, 2026
概括
这项研究将有机酸 (OPEs) 暴露与成年人血微RNA (miRNA) 形状的改变联系起来. 结果表明潜在的神经毒性作用,并突出了低水平OPE污染的公共卫生问题.
科学领域:
- 环境健康 环境健康
- 分子生物学分子生物学
- 毒理学 毒理学 毒理学
背景情况:
- 有机酸盐 (OPEs) 是广泛存在的环境污染物,与健康风险有关.
- 循环中的microRNAs (miRNAs) 参与调解OPE的病理效应,但人类数据很少.
- 了解OPE对人类miRNA资料的影响对于公共卫生风险评估至关重要.
研究的目的:
- 在健康成年人中调查血OPE和血miRNA资料之间的关联.
- 为了识别与改变miRNA表达相关的特定OPE及其混合物.
- 探索受OPE诱导的miRNA变化影响的潜在生物途径.
主要方法:
- 在中国对156名健康成年人 (年龄在20-70岁) 进行的横截面研究.
- 对13个血OPE的量化和对血miRNA资料的分析.
- 线性回归和混合物建模以确定OPE-miRNA关联;KEGG,GO和Hallmark基因组丰富分析.
主要成果:
- 特定的OPE如克雷西尔二基酸盐 (CDPP),Tris (2-chloroethyl) 酸盐 (TCEP) 和Tri-iso-butyl酸盐 (TiBP) 与明显的血miRNA变化有关.
- 一种CDPP-TiBP-TCEP混合物与miR-449c-5p/miR-548e-5p的下调和几个其他miRNA的上调有关.
- 白细胞miRNA水平与血水平相关,途径分析表明神经毒性机制 (例如,粉样β代谢,轴突引导).
结论:
- 这是第一个将微量OPE暴露与人类特定的血miRNA配置文件联系起来的研究.
- 观察到的miRNA变化表明OPEs的潜在神经毒性作用.
- 低水平的OPE暴露可能会破坏神经调节,造成严重的公共卫生问题.
相关概念视频
MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA ends...
MicroRNAs
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...


