Protective effect of Qingjie Huagong decoction on pancreatic tissue of mice with severe acute pancreatitis by regulating the NOD-like receptor protein 3/Toll-like receptor 4/nuclear factor-kappa B signaling pathway

Minchao FENG; Baijun QIN; Fang LUO; Kai LI; Ning WANG; Guozhong CHEN; Xiping TANG

doi:10.12449/JCH240219

Volume 40 Issue 2

Feb. 2024

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Article Navigation > Journal of Clinical Hepatology > 2024 > 40(2): 343-350

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Protective effect of Qingjie Huagong decoction on pancreatic tissue of mice with severe acute pancreatitis by regulating the NOD-like receptor protein 3/Toll-like receptor 4/nuclear factor-kappa B signaling pathway

DOI: 10.12449/JCH240219

1.
The First Clinical School of Medicine，Guangxi University of Chinese Medicine，Nanning 530000，China
2.
Department of Gastroenterology，The First Affiliated Hospital of Guangxi University of Chinese Medicine，Nanning 530023，China
3.
Endoscopy Center，Guangxi Medical University Cancer Hospital，Nanning 530021，China

Research funding:

National Natural Science Foundation of China Project (82160890);

General Project of Guangxi Natural Science Foundation (2020GXNSFAA297062);

Guangxi Medical and Healthcare Appropriate Technology Development and Popularization and Application Project (S2019021);

Guangxi University of TCM Graduate Education Innovation Program Project (YCSW2023383)

More Information

Corresponding author: CHEN Guozhong， cheninjp@163.com （ORCID： 0009-0008-8374-5628）
Received Date: 2023-06-02
Accepted Date: 2023-07-24
Published Date: 2024-02-19

Abstract

Abstract

Objective To investigate the therapeutic effect of Qingjie Huagong decoction （QJHGD） on a mouse model of severe acute pancreatitis （SAP） and the mechanism of action of QJHGD against inflammatory response. Methods A total of 36 male C57BL/6J mice were randomly divided into blank group， model group， Western medicine group （ulinastatin）， and low-， middle-， and high-dose QJHGD groups， with 6 mice in each group. All mice except those in the blank group were given 5% sodium taurocholate by retrograde pancreaticobiliary injection to establish a model of SAP. After modeling， the mice in the low-， middle-， and high-dose groups were given QJHGD （1， 2， and 4 g/kg， respectively） by gavage， and those in the Western medicine group were given intraperitoneal injection of ulinastatin （5×10⁴ U/kg）， for 7 days in total. HE staining was used to observe the histopathological changes of the pancreas； ELISA was used to measure the levels of α-amylase， lipase， interleukin-1β （IL-1β）， interleukin-6 （IL-6）， interleukin-8 （IL-8）， interleukin-18 （IL-18）， and tumor necrosis factor-α （TNF-α） in mice； RT-qPCR was used to measure the mRNA expression levels of NOD-like receptor protein3 （NLRP3）， Toll-like receptor 4 （TLR4）， and nuclear factor-kappa B （NF-κB） in pancreatic tissue； immunohistochemistry was used to measure the positive expression rates of NLRP3， TLR4， and NF-κB in pancreatic tissue； Western blot was used to measure the protein expression levels of NLRP3， TLR4， NF-κB， IL-1β， and IL-6. An analysis of variance was used for comparison of continuous data between multiple groups， and the least significant difference t-test was used for further comparison between two groups. Results Compared with the blank group， the model group had diffuse destruction of pancreatic tissue structure， focal dilatation of pancreatic lobular septum， pancreatic acinar atrophy， and massive inflammatory cell infiltration， as well as significant increases in the content of α-amylase， lipase， IL-1β， IL-6， IL-8， IL-18， and TNF-α （all P<0.05）， the mRNA expression levels and positive expression rates of NLRP3， TLR4， and NF-κB （all P<0.05）， and the protein expression levels of NLRP3， TLR4， NF-κB， IL-1β， and IL-6 （all P<0.05）. Compared with the model group， the low-， middle-， and high-dose QJHGD groups and the Western medicine group had slightly tighter and more intact structure of pancreatic tissue， ordered arrangement of pancreatic acinar cells， a small amount of inflammatory cell infiltration， and hemorrhagic foci of pancreatic lobules， as well as significant reductions in the content of α-amylase， lipase， IL-1β， IL-6， IL-8， IL-18， and TNF-α （all P<0.05）， the mRNA expression levels and positive expression rates of NLRP3， TLR4， and NF-κB （all P<0.05）， and the protein expression levels of NLRP3， TLR4， NF-κB， IL-1β， and IL-6 （all P<0.05）. Conclusion QJHGD may exert a protective effect on the pancreatic tissue of SAP mice by inhibiting the activation of NLRP3/TLR4/NF-κB signaling pathway-related proteins， reducing the release of inflammatory mediators， and preventing the enhancement of inflammatory cascade response.
- Pancreatitis,
- NLR Proteins,
- Toll-Like Receptor 4,
- NF-kappa B,
- Qingjie Huagong Decoction,
- Mice， Inbred C57BL

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References(21)

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Protective effect of Qingjie Huagong decoction on pancreatic tissue of mice with severe acute pancreatitis by regulating the NOD-like receptor protein 3/Toll-like receptor 4/nuclear factor-kappa B signaling pathway

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Protective effect of Qingjie Huagong decoction on pancreatic tissue of mice with severe acute pancreatitis by regulating the NOD-like receptor protein 3/Toll-like receptor 4/nuclear factor-kappa B signaling pathway

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