Proteomics

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Identification of biomarkers of central nervous system damage in mice of benzene poisoning based on TMT proteomics


ABSTRACT: Benzene is known to be a common toxic industrial chemical, and prolonged benzene exposure may cause nervous system damage. At present, there were few studies on benzene-induced neurological damage. This research aimed to identify protein biomarkers to predict central nervous system damage of benzene poisoning. We established a benzene poisoning model of C57 mice by gavage of benzene-peanut oil suspension and identified differentially expressed proteins (DEPs) in brain tissue using TMT proteomics. The results showed a significant weight loss and decrease in leukocyte and neutrophil counts in benzene poisoning mice compared to the control group. We also observed significant cerebral oedema and enhanced basophilic of neurons in the hippocampus in benzene poisoning group of mice. TMT proteomic results showed that a total 6985 proteins were quantified, with a Fold Change (FC) > 1.2 (or <1/1.2) and P value <0.05 were considered as DEPs. Compared with the control group, we identified 43 DEPs, comprising 14 upregulated and 29 downregulated proteins. KEGG pathway analysis showed that the candidate proteins were mainly involved in cholesterol metabolism, complement and coagulation cascades, african trypanosomiasis, PPAR signaling pathway and vitamin digestion and absorption. Three proteins, 2-hydroxyacylsphingosine 1-beta-galactosyltransferase (UGT8), Apolipoprotein A-I (APOA1) and Complement C3 (C3) were validated using immunoblotting and immunohistochemical. In conclusion, our results may provide some molecular biomarkers for identifying the nervous system damage of benzene poisoning.

INSTRUMENT(S): Q Exactive HF

ORGANISM(S): Mus Musculus (mouse)

TISSUE(S): Brain

SUBMITTER: Zhe Zheng  

LAB HEAD: Zhe Zheng

PROVIDER: PXD046028 | Pride | 2025-05-06

REPOSITORIES: Pride

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23053006_ZS_TMTp6_f01.raw Raw
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Publications

Study on the underlying molecular mechanism of benzene-induced nervous system damage in mice based on tandem mass tag (TMT) proteomics.

Zheng Zhe Z   Li Hongwei H   Zhang Zhenqian Z   Zhai Xiandun X   Qin Haojie H  

Toxicology research 20240314 2


Benzene is known to be a common toxic industrial chemical, and prolonged benzene exposure may cause nervous system damage. At present, there were few studies on benzene-induced neurological damage. This research aimed to identify the protein biomarkers to explore the mechanism of nervous system damage caused by benzene. We established a benzene poisoning model of C57 mice by gavage of benzene-peanut oil suspension and identified differentially expressed proteins (DEPs) in brain tissue using tand  ...[more]

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