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Combined proteomic and metabolomic studies on the liver of Amur sturgeon Acipenser schrenckii under titanium dioxide nanoparticle exposure

文献类型： 外文期刊

作者： Zhou, Zhou 1 ; Liu, Ting 3 ; Kong, Jie 3 ; Zhao, Zhenxing 3 ; Zhu, Junquan 1 ;

作者机构： 1.Ningbo Univ, Coll Marine Sci, Key Lab Aquacultural Biotechnol, Minist Educ, Ningbo 315000, Peoples R China

2.Ningbo Univ, Coll Marine Sci, Key Lab Marine Biotechnol Zhejiang Prov, Ningbo 315000, Peoples R China

3.Guizhou Acad Agr Sci, Fisheries Res Inst, Guiyang 550000, Guizhou, Peoples R China

关键词： TiO2-nanoparticle exposure; proteomics; metabolomics; glucose metabolism; immune response

期刊名称：JOURNAL OF OCEANOLOGY AND LIMNOLOGY （ 影响因子：1.6； 五年影响因子：1.6 ）

ISSN： 2096-5508

年卷期： 2024 年

页码：

收录情况： SCI

摘要： Nanomaterials, particularly titanium dioxide nanoparticles (TiO2-NPs), are extensively utilized across various industries. However, their environmental release has raised concerns regarding their potential ecological and environmental impacts. The reproductive toxicity of TiO2-NPs in fish species has attracted considerable attention, yet conflicting research outcomes have been reported. We investigated the effects of TiO2-NPs exposure on the liver of juvenile Amur sturgeon Acipenser schrenckii using label-free proteomic and untargeted metabolomic analyses. The experiment included a control group and three groups exposed to different concentrations of TiO2-NPs (low, TL; medium, TM; high, TH). Compared to the control group, 9, 19, and 25 proteins and 35, 73, and 158 metabolites were differentially expressed in the TH, TM, and TL TiO2-NP-exposed groups, respectively. The differentially expressed genes (DEGs) were enriched in the Kyoto Encyclopedia for Genes and Genomes (KEGG) pathways related to glycolysis and gluconeogenesis. Moreover, among the 126 correlated proteins, the most enriched pathways were associated with endocytosis and protein processing in the endoplasmic reticulum. Notably, syringic acid was significantly downregulated across all three TiO2-NP-exposed groups. To obtain a comprehensive overview of the TiO2-NP-induced expression changes, a co-regulated network of proteins and metabolites associated with TiO2-NPs exposure was constructed. Exposure to TiO2-NPs led to enrichment and alteration of pathways related to immune responses, including endocytosis, protein processing in the endoplasmic reticulum, and peroxisome proliferator-activated receptor (PPAR) signaling. In conclusion, our findings indicate that exposure to TiO2-NPs might disrupt glucose metabolism and induce immune responses, thus contributing to our understanding of the environmental impacts of nanomaterials and highlighting the need for further research and development of potential mitigation strategies.

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