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Abstract Title:

Ligustrazine alleviates acute pancreatitis by accelerating acinar cell apoptosis at early phase via the suppression of p38 and Erk MAPK pathways.

Abstract Source:

Biomed Pharmacother. 2016 Aug ;82:1-7. Epub 2016 Apr 28. PMID: 27470331

Abstract Author(s):

Jianli Chen, Junmao Chen, Xiaotao Wang, Changyou Wang, Wenbin Cao, Yongkui Zhao, Bo Zhang, Mingxin Cui, Qiuyan Shi, Guozhi Zhang

Article Affiliation:

Jianli Chen

Abstract:

OBJECTIVE: This study aimed to investigate the role of ligustrazine on apoptosis and inflammatory reaction in acute pancreatitis.

METHODS: Rats and acinar cells were treated with caerulein to induce acute pancreatitis models. Cell models were treated with saline, p38 inhibitor, Erk inhibitor and ligustrazine. Then, the levels of TNF-α, IL-1β and IL-6 were determined by ELISA assay, the protein levels of p38, Erk1/2, p53 and cleaved caspase3 were determined by western blotting, and apoptosis were measured by flow cytometry. Rat models were treated with saline and ligustrazine. Plasma amylase and pancreatic myeloperoxidase activity and the levels of TNF-α, IL-1β and IL-6 in rats were determined. The protein levels of p38, Erk1/2, p53 and cleaved caspase3 in pancreas tissues were determined by western blotting, and pancreas tissues were also performed TUNEL staining to observe apoptosis status.

RESULTS: Ligustrazine downregulated the levels of TNF-α, IL-1β, IL-6. The protein levels of p38 and Erk were reduced by p38 inhibitor, Erk inhibitor and ligustrazine, while the levels of p53 and cleaved caspase 3 were upregulated. Apoptosis of AP acinar cells and cells in AP rat models was promoted after treated with ligustrazine. Plasma amylase andpancreatic myeloperoxidase activity in AP rat models were reduced by ligustrazine.

CONCLUSION: Ligustrazine alleviates acute pancreatitis by accelerating acinar cell apoptosis at early phase via the suppression on p38 and Erk MAPK pathways. It is capable of attenuating the severity of acute pancreatitis and may have a therapeutic effect on patients with acute pancreatitis.

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