代谢组学
脂质代谢
化学
先天免疫系统
免疫系统
生物化学
CD36
新陈代谢
细胞生物学
生物
免疫学
色谱法
受体
作者
Yan Shao,Xiaoyang Wang,Liting Wang,Yongyuan Huang,Quanfang Wei,Wei Sun,Xiaodan Lai,Fan Yang,Fei Li,Yongyuan Huang
出处
期刊:Toxicology
[Elsevier]
日期:2022-12-01
卷期号:484: 153389-153389
标识
DOI:10.1016/j.tox.2022.153389
摘要
To investigate the potential factors of graphene quantum dots (GQDs), the assessment impact on the innate immune system is one of the most important. As the innate immune cell, macrophages possess phagocytosis activity and affect immunomodulation. Higher oxygen consumption rates (OCR) are used to gain insight into GQDs' effects on macrophages. Metabolomics profiling also revealed that GQDs exposure provoked an increase in phosphoglycerides, sphingolipids, and oxidized lipids in macrophages. The molecular pathways disrupted by GQDs were associated with lipid and energy metabolisms. Metabolite flux analysis was used to evaluate changes in the lipid metabolism of macrophages exposed to 100 µg mL-1 GQDs for 24 and 48 h. A combination of 13C-flux analysis and metabolomics revealed the regulation of lipid biosynthesis influenced the balance of energy metabolism. Integrated proteomics and metabolomics analyses showed that nicotinic acid adenine dinucleotide and coenzyme Q10 were significantly increased under GQDs treatment, alongside upregulated protein activity (e.g., Cox5b and Cd36). The experimental evidences were expected to be provided in this study to reveal the potential harmful effect from exposure to GQDs.
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