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3. Kidney and lung tissue modifications after BDL-induced liver injury in mice are associated with increased expression of IGFBPrP1 and activation of the NF-κB inflammation pathway

Author

Hu, Zhi-Hui, Kong, Yang-Yang, Ren, Jun-Jie, Huang, Ting-Juan, Wang, Yan-Qin, and Liu, Li-Xin

Subjects
Original Article
Abstract

Background: Hepatorenal and hepatopulmonary syndrome are common clinical diseases; however, their mechanisms have not been fully elucidated. Our aim was to determine whether liver injury by bile duct ligation (BDL) causes modifications in kidney and lung tissue in mice, and to explore the possible mechanism of these changes. Methods: BDL in mice was used as a research model. Pathologic changes of liver, kidney, and lung tissue were observed by hematoxylin-eosin (H&E) staining. The expression of IGFBPrP1, NF-κB, TNF-α, and IL-6 were investigated in liver, kidney, and lung tissue by immunohistochemical staining and western blot. The correlation between IGFBPrP1 and NF-κB, TNF-α, and IL-6 protein expression in liver, kidney, and lung tissues of each group was analyzed by the Pearson method. Results: H&E staining showed, after BDL administration in mice, different degrees of inflammatory change in liver, kidney, and lung tissues of mice in each group. The results of immunohistochemical staining and western blot analysis showed increased expressions of IGFBPrP1, NF-κB, TNF-α, and IL-6 after BDL. Pearson correlation analysis showed that IGFBPrP1 positively correlated with the expressions of NF-κB, TNF-α, and IL-6. Conclusion: Liver injury caused by bile duct ligation can lead to kidney and lung tissue injury in mice. The mechanism of injury may be related to the high expression of liver injury factor IGFBPrP1, transcription factor NF-κB, proinflammatory cytokine TNF-α, and IL-6 in kidney and lung tissue. Moreover, an increased expression level of IGFBPrP1 may be accompanied by the activation of the NF-κB inflammatory pathway.

Published
2020

4. Insulin-like growth factor binding protein related protein 1 knockdown attenuates hepatic fibrosis via the regulation of MMPs/TIMPs in mice

Author

Ren, Jun-Jie, Huang, Ting-Juan, Zhang, Qian-Qian, Zhang, Hai-Yan, Guo, Xiao-Hong, Fan, Hui-Qin, Li, Ren-Ke, and Liu, Li-Xin

Abstract

Previous research suggested that insulin-like growth factor binding protein related protein 1 (IGFBPrP1), as a novel mediator, contributes to hepatic fibrogenesis. Matrix metalloproteinases (MMP) and tissue inhibitors of metalloproteinases (TIMP) play an essential role in hepatic fibrogenesis by regulating homeostasis and remodeling of the extracellular matrix (ECM). However, the interaction between IGFBPrP1 and MMP/TIMP is not clear. The present study was to knockdown IGFBPrP1 to investigate the correlation between IGFBPrP1 and MMP/TIMP in hepatic fibrosis.

Published
2024
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5. Kidney and lung tissue modifications after BDL-induced liver injury in mice are associated with increased expression of IGFBPrP1 and activation of the NF-κB inflammation pathway.

Author

Hu ZH, Kong YY, Ren JJ, Huang TJ, Wang YQ, and Liu LX

Abstract

Background: Hepatorenal and hepatopulmonary syndrome are common clinical diseases; however, their mechanisms have not been fully elucidated. Our aim was to determine whether liver injury by bile duct ligation (BDL) causes modifications in kidney and lung tissue in mice, and to explore the possible mechanism of these changes., Methods: BDL in mice was used as a research model. Pathologic changes of liver, kidney, and lung tissue were observed by hematoxylin-eosin (H&E) staining. The expression of IGFBPrP1, NF-κB, TNF-α, and IL-6 were investigated in liver, kidney, and lung tissue by immunohistochemical staining and western blot. The correlation between IGFBPrP1 and NF-κB, TNF-α, and IL-6 protein expression in liver, kidney, and lung tissues of each group was analyzed by the Pearson method., Results: H&E staining showed, after BDL administration in mice, different degrees of inflammatory change in liver, kidney, and lung tissues of mice in each group. The results of immunohistochemical staining and western blot analysis showed increased expressions of IGFBPrP1, NF-κB, TNF-α, and IL-6 after BDL. Pearson correlation analysis showed that IGFBPrP1 positively correlated with the expressions of NF-κB, TNF-α, and IL-6., Conclusion: Liver injury caused by bile duct ligation can lead to kidney and lung tissue injury in mice. The mechanism of injury may be related to the high expression of liver injury factor IGFBPrP1, transcription factor NF-κB, proinflammatory cytokine TNF-α, and IL-6 in kidney and lung tissue. Moreover, an increased expression level of IGFBPrP1 may be accompanied by the activation of the NF-κB inflammatory pathway., Competing Interests: None., (IJCEP Copyright © 2020.)

Published
2020

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