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Abstract Title:

Cordycepin protects against acute pancreatitis by modulating NF-κB and NLRP3 inflammasome activation via AMPK.

Abstract Source:

Life Sci. 2020 Jun 15 ;251:117645. Epub 2020 Apr 5. PMID: 32268154

Abstract Author(s):

Jing Yang, Yiwen Zhou, Jinsong Shi

Article Affiliation:

Jing Yang

Abstract:

Acute pancreatitis (AP) is a noninfectious inflammatory disease with high morbidity and mortality, which is characterized by severe inflammation and tissue necrosis. Cordycepin (CRD), derived from Cordyceps militaris, possesses anti-inflammatory effects and immunomodulation properties. Here, we investigated the protective effects of CRD on pancreatic injury and clarified potential mechanisms in AP model. There were established caerulein-induced AP and CRD pretreatment models in vivo and in vitro, as showed by serum enzymes, histopathological alterations and pro-inflammatory cytokines. Pretreatment with CRD notably downregulated the serum amylase and lipase levels and apparently reduced pancreatic histopathological alterations in AP mice. Meanwhile, the MPO staining confirmed that CRD pretreatment modulated the infiltration of neutrophils in AP mice. Furthermore, CRD markedly decreased the levels of pro-inflammatory factors (IL-6, IL-1β, and TNF-α) though inhibiting the activation of nuclear factor-κB (NF-κB) and NLR family pyrin domain-containing protein 3 (NLRP3) inflammasome in AP mice. In pancreatic acinar cancer cell 266-6, CRD pretreatment decreased cholecystokinin(CCK)-induced inflammatory response was consistent withthose in vivo. Mechanistically, CRD was also revealed to activate activated protein kinase (AMPK) and attenuated inflammation both in vivo and in vitro. On the whole, this study indicated that CRD protects mice from pancreatic inflammatory process and damage by suppressed NF-κB and NLRP3 inflammasome activation via AMPK, which probably contributed to the potential therapy for AP.

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