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- W4323348521 abstract "Abstract Hexavalent chromium Cr (VI) is a primary human carcinogen with damaging toxic effects on multiple organs. Cr (VI) exposure can induce hepatotoxicity through oxidative stress, but its exact mechanism of action was still unclear. In our study, a model of acute Cr (VI) induced liver injury was established by exposing mice to different concentrations (0, 40, 80, and 160 mg/kg) of Cr (VI); RNA‐seq was used to characterize changes in liver tissue transcriptome of C57BL/6 mice after exposing to 160 mg/kg Bw of Cr (VI). Changes in liver tissue structures, proteins, and genes were observed by hematoxylin and eosin (H&E), western blot, immunohistochemistry and RT‐PCR. After Cr (VI) exposure, abnormal liver tissue structure, hepatocyte injury, and hepatic inflammatory response were observed in mice in a dose‐dependent manner. RNA‐seq transcriptome results indicated that oxidative stress, apoptosis, and inflammatory response pathways were increased after Cr (VI) exposure; KEGG pathway analysis found that activation of NF‐κB signaling pathway was significantly upregulated. Consistent with the RNA‐seq results, immunohistochemistry showed that Cr (VI) exposure resulted in infiltrating of Kupffer cells and neutrophils, increasing expression of inflammatory factors (TNF‐α, IL‐6, IL‐1β), and activating of NF‐κB signaling pathways (p‐IKKα/β and p‐p65). However, ROS inhibitor, N‐acetyl‐L‐cysteine (NAC), could reduce infiltration of Kupffer cells and neutrophils and expression of inflammatory factors. Besides, NAC could inhibit NF‐κB signaling pathway activation, and alleviate Cr (VI)‐induced liver tissue damage. Our findings strongly suggested that inhibition of ROS by NAC might help in the development of new strategies for Cr (VI)‐associated liver fibrosis. Our findings revealed for the first time that Cr (VI) induced liver tissue damage through the inflammatory response mediated by the NF‐κB signaling pathway, and inhibition of ROS by NAC might help in the development of new strategies for Cr (VI)‐associated hepatotoxicity." @default.
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- W4323348521 date "2023-03-07" @default.
- W4323348521 modified "2023-10-16" @default.
- W4323348521 title "Role of <scp>NF‐κB</scp> signaling pathway in hexavalent chromium‐induced hepatotoxicity" @default.
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- W4323348521 doi "https://doi.org/10.1002/tox.23769" @default.
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