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Current Molecular Pharmacology


ISSN (Print): 1874-4672
ISSN (Online): 1874-4702

Research Article

Fenbufen Alleviates Severe Acute Pancreatitis by Suppressing Caspase-1/Caspase-11-mediated Pyroptosis in Mice

Author(s): Shien Shen, Wenqin Xiao, Weiliang Jiang, Kai Li, Xingya Guo, Guanzhao Zong, Chuanyang Wang, Jingpiao Bao, Jiahui Chen, Zhiyuan Cheng, Jie Shen and Rong Wan*

Volume 17, 2024

Published on: 13 July, 2023

Article ID: e110523216783 Pages: 9

DOI: 10.2174/1874467217666230511095540



Aim: In the present study, we aimed to investigate the effects of Fenbufen treatment on the SAP model induced by caerulein and lipopolysaccharide.

Background: Severe acute pancreatitis (SAP) is an extremely dangerous disease with high mortality, which is associated with inflammatory response and acinar cell death. The caspase family plays an important role in cell death, such as caspase-1 and caspase-11 in pyroptosis. In recent years, caspases have been shown to be a novel pharmacological target of Fenbufen.

Objective: Effects of Fenbufen on pancreatic tissue damage and serum levels of lipase and amylase in SAP in mice; Effect of Fenbufen on caspase-1 pathway in SAP in mice; Effect of Fenbufen on caspase-1/caspase-11-mediated pyroptosis of PACs in SAP in mice; Effect of Fenbufen on isolated PACs and caspase-1/caspase-11-mediated pyroptosis in vitro.

Methods: In vivo, eighteen female C57BL/6 mice were randomly divided into 3 groups: the NC group, the SAP group, and the Fenbufen +SAP group with 6 mice in each group. The SAP model was induced by intraperitoneal injection of caerulein and lipopolysaccharide. The pathological changes in pancreatic and the serum levels of lipase and amylase and the relative gene and protein expressions in each group were compared. In vitro, pancreatic acinar cells were assigned to 5 groups: medium group, SAP group, Fenbufen 100μM group, Fenbufen 200μM group, and Fenbufen 400μM group. The cell damage and the relative gene and protein expressions in each group were evaluated.

Results: Our results showed that Fenbufen ameliorated the severity of SAP and decreased the serum levels of lipase and amylase. Meanwhile, the in vivo and in vitro data demonstrated that Fenbufen inhibited the activation of caspase-1 and caspase-11, decreasing the levels of IL-1β, IL-18, and GSDMD. In in vitro experiments, we found that by inhibiting the activation of caspase-1 and caspase-11, Fenbufen significantly reduced lactate dehydrogenase (LDH) excretion by acinar cells.

Conclusion: In general, our data showed that Fenbufen could protect the pancreatic acinar cell from injury by inhibiting pyroptosis.

Keywords: Severe acute pancreatitis, Fenbufen, Pyroptosis, Caspase-1, Caspase-11, Acinar cell.

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