Propylene Glycol Alginate Sodium Sulfate Alleviates  Cerulein‐Induced Acute Pancreatitis by Modulating  the MEK/ERK Pathway in Mice

Previous studies have focused on the effects of propylene glycol alginate sodium sulfate  (PSS)  against  thrombosis,  but  the  anti‐inflammatory  potential  is  unknown.  Therefore,  we  specifically focused on the protective effects of PSS on cerulein‐induced acute pancreatitis (AP)  using a mous...

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Main Authors: Hui Zhang, Yueyue Li, Linqiang Li, Hua Liu, Liangkai Hu, Ying Dai, Jianqing Chen, Shuqi Xu, Weimin Chen, Xiaorong Xu, Xuanfu Xu
Format: Article
Language:English
Published: MDPI AG 2017-02-01
Series:Marine Drugs
Subjects:
Online Access:http://www.mdpi.com/1660-3397/15/2/45
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spelling doaj-d2ff3301872d49f9ab04aa037d38aca22020-11-24T21:20:10ZengMDPI AGMarine Drugs1660-33972017-02-011524510.3390/md15020045md15020045Propylene Glycol Alginate Sodium Sulfate Alleviates  Cerulein‐Induced Acute Pancreatitis by Modulating  the MEK/ERK Pathway in MiceHui Zhang0Yueyue Li1Linqiang Li2Hua Liu3Liangkai Hu4Ying Dai5Jianqing Chen6Shuqi Xu7Weimin Chen8Xiaorong Xu9Xuanfu Xu10Department of Gastroenterology, the Tenth People’s Hospital of Shanghai, Tongji University, Shanghai 200072, ChinaDepartment of Gastroenterology, the Tenth People’s Hospital of Shanghai, Tongji University, Shanghai 200072, ChinaDepartment of Gastroenterology, the Tenth People’s Hospital of Shanghai, Tongji University, Shanghai 200072, ChinaDepartment of Gastroenterology, the Tenth People’s Hospital of Shanghai, Tongji University, Shanghai 200072, ChinaDepartment of Gastroenterology, the Shidong Hospital of Shanghai, Shanghai 200072, ChinaDepartment of Gastroenterology, the Shidong Hospital of Shanghai, Shanghai 200072, ChinaDepartment of Gastroenterology, the Shidong Hospital of Shanghai, Shanghai 200072, ChinaDepartment of Gastroenterology, the Shidong Hospital of Shanghai, Shanghai 200072, ChinaDepartment of Gastroenterology, the Shidong Hospital of Shanghai, Shanghai 200072, ChinaDepartment of Gastroenterology, the Tenth People’s Hospital of Shanghai, Tongji University, Shanghai 200072, ChinaDepartment of Gastroenterology, the Shidong Hospital of Shanghai, Shanghai 200072, ChinaPrevious studies have focused on the effects of propylene glycol alginate sodium sulfate  (PSS)  against  thrombosis,  but  the  anti‐inflammatory  potential  is  unknown.  Therefore,  we  specifically focused on the protective effects of PSS on cerulein‐induced acute pancreatitis (AP)  using a mouse model, and investigated the mechanism of PSS on autophagy and apoptosis via the  Mitogen‐activated  protein  kinase  (MEK)/extracellular  signal‐regulated  kinase  (ERK)  pathway.  Cerulein (100 ug/kg) was used to induce AP by ten intraperitoneal injections at hourly intervals in  Balb/C mice. Pretreatment with vehicle or PSS was carried out 1 h before the first cerulein injection  and two doses (25 mg/kg and 50 mg/kg) of PSS were injected intraperitoneally. The severity of AP was  assessed by pathological score, biochemistry, pro‐inflammatory cytokine levels, myeloperoxidase  (MPO) activity and MEK/ERK activity. Furthermore, pancreatic histological scores, serum amylase  and lipase activities, tumor necrosis factor‐α (TNF‐α), interleukin (IL)‐1β interleukin (IL)‐6 levels, and  MPO activity were significantly reduced by PSS via up‐regulated MEK/ERK activity. The representative  molecules of apoptosis and autophagy, such as Bcl‐2, Bax, Lc‐3, Beclin‐1, P62, were remarkably reduced.  Taken together, these results indicate that PSS attenuates pancreas injury by inhibiting autophagy and  apoptosis through a mechanism involving the MEK/ERK signaling pathway.http://www.mdpi.com/1660-3397/15/2/45acute pancreatitis apoptosis autophagy MEK/ERK pathway PSS
collection DOAJ
language English
format Article
sources DOAJ
author Hui Zhang
Yueyue Li
Linqiang Li
Hua Liu
Liangkai Hu
Ying Dai
Jianqing Chen
Shuqi Xu
Weimin Chen
Xiaorong Xu
Xuanfu Xu
spellingShingle Hui Zhang
Yueyue Li
Linqiang Li
Hua Liu
Liangkai Hu
Ying Dai
Jianqing Chen
Shuqi Xu
Weimin Chen
Xiaorong Xu
Xuanfu Xu
Propylene Glycol Alginate Sodium Sulfate Alleviates  Cerulein‐Induced Acute Pancreatitis by Modulating  the MEK/ERK Pathway in Mice
Marine Drugs
acute pancreatitis
 apoptosis
 autophagy
 MEK/ERK pathway
 PSS
author_facet Hui Zhang
Yueyue Li
Linqiang Li
Hua Liu
Liangkai Hu
Ying Dai
Jianqing Chen
Shuqi Xu
Weimin Chen
Xiaorong Xu
Xuanfu Xu
author_sort Hui Zhang
title Propylene Glycol Alginate Sodium Sulfate Alleviates  Cerulein‐Induced Acute Pancreatitis by Modulating  the MEK/ERK Pathway in Mice
title_short Propylene Glycol Alginate Sodium Sulfate Alleviates  Cerulein‐Induced Acute Pancreatitis by Modulating  the MEK/ERK Pathway in Mice
title_full Propylene Glycol Alginate Sodium Sulfate Alleviates  Cerulein‐Induced Acute Pancreatitis by Modulating  the MEK/ERK Pathway in Mice
title_fullStr Propylene Glycol Alginate Sodium Sulfate Alleviates  Cerulein‐Induced Acute Pancreatitis by Modulating  the MEK/ERK Pathway in Mice
title_full_unstemmed Propylene Glycol Alginate Sodium Sulfate Alleviates  Cerulein‐Induced Acute Pancreatitis by Modulating  the MEK/ERK Pathway in Mice
title_sort propylene glycol alginate sodium sulfate alleviates  cerulein‐induced acute pancreatitis by modulating  the mek/erk pathway in mice
publisher MDPI AG
series Marine Drugs
issn 1660-3397
publishDate 2017-02-01
description Previous studies have focused on the effects of propylene glycol alginate sodium sulfate  (PSS)  against  thrombosis,  but  the  anti‐inflammatory  potential  is  unknown.  Therefore,  we  specifically focused on the protective effects of PSS on cerulein‐induced acute pancreatitis (AP)  using a mouse model, and investigated the mechanism of PSS on autophagy and apoptosis via the  Mitogen‐activated  protein  kinase  (MEK)/extracellular  signal‐regulated  kinase  (ERK)  pathway.  Cerulein (100 ug/kg) was used to induce AP by ten intraperitoneal injections at hourly intervals in  Balb/C mice. Pretreatment with vehicle or PSS was carried out 1 h before the first cerulein injection  and two doses (25 mg/kg and 50 mg/kg) of PSS were injected intraperitoneally. The severity of AP was  assessed by pathological score, biochemistry, pro‐inflammatory cytokine levels, myeloperoxidase  (MPO) activity and MEK/ERK activity. Furthermore, pancreatic histological scores, serum amylase  and lipase activities, tumor necrosis factor‐α (TNF‐α), interleukin (IL)‐1β interleukin (IL)‐6 levels, and  MPO activity were significantly reduced by PSS via up‐regulated MEK/ERK activity. The representative  molecules of apoptosis and autophagy, such as Bcl‐2, Bax, Lc‐3, Beclin‐1, P62, were remarkably reduced.  Taken together, these results indicate that PSS attenuates pancreas injury by inhibiting autophagy and  apoptosis through a mechanism involving the MEK/ERK signaling pathway.
topic acute pancreatitis
 apoptosis
 autophagy
 MEK/ERK pathway
 PSS
url http://www.mdpi.com/1660-3397/15/2/45
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