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Downregulation of GRP78 and XIAP is correlated with apoptosis during cerulein-induced acute pancreatitis in rats via regulation of caspase activation

Our aim in the present study was to investigate the potential roles of the 78-kDa glucose-regulated protein (GRP78) and the X-linked inhibitor of apoptosis protein (XIAP) in the regulation of apoptosis during cerulein-induced acute pancreatitis (CAP). A rat CAP model was induced by injection of ceru...

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Autores principales: LIU, YONG, ZHOU, ZONG-GUANG, ZHOU, BING, WANG, RONG, YAN, HUI, LI, YUAN
Formato: Online Artículo Texto
Lenguaje:English
Publicado: D.A. Spandidos 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3597459/
https://www.ncbi.nlm.nih.gov/pubmed/23254244
http://dx.doi.org/10.3892/mmr.2012.1241
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author LIU, YONG
ZHOU, ZONG-GUANG
ZHOU, BING
WANG, RONG
YAN, HUI
LI, YUAN
author_facet LIU, YONG
ZHOU, ZONG-GUANG
ZHOU, BING
WANG, RONG
YAN, HUI
LI, YUAN
author_sort LIU, YONG
collection PubMed
description Our aim in the present study was to investigate the potential roles of the 78-kDa glucose-regulated protein (GRP78) and the X-linked inhibitor of apoptosis protein (XIAP) in the regulation of apoptosis during cerulein-induced acute pancreatitis (CAP). A rat CAP model was induced by injection of cerulein (50 μg/kg), and the severity of CAP was estimated by measuring serum amylase and lipase, pancreatic edema and histological changes. Pancreatic acinar cell apoptosis was determined by terminal-deoxynucleotidyl-transferase-mediated dUTP nick-end labeling (TUNEL) assay, and the expression of GRP78, XIAP and the apoptotic genes caspase-3, -7 and -9 were determined by real-time quantitative PCR and western blotting. After induction with cerulein, increased serum amylase and lipase, pancreatic edema, inflammation and apoptosis were observed in CAP rats. Furthermore, the mRNA and protein levels of GRP78 and XIAP were significantly downregulated in CAP rats, while the mRNA levels of caspase-3, -7 and -9, as well as the cell apoptotic index were markedly increased when compared with control rats (P<0.05). The expression of GRP78 and XIAP was negatively correlated with caspase expression in CAP (P<0.05). This study suggests that the downregulation of GRP78 and XIAP were correlated with apoptosis in pancreatic acinar cells, and that this may occur through the regulation of caspase activation during CAP.
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spelling pubmed-35974592013-03-15 Downregulation of GRP78 and XIAP is correlated with apoptosis during cerulein-induced acute pancreatitis in rats via regulation of caspase activation LIU, YONG ZHOU, ZONG-GUANG ZHOU, BING WANG, RONG YAN, HUI LI, YUAN Mol Med Rep Articles Our aim in the present study was to investigate the potential roles of the 78-kDa glucose-regulated protein (GRP78) and the X-linked inhibitor of apoptosis protein (XIAP) in the regulation of apoptosis during cerulein-induced acute pancreatitis (CAP). A rat CAP model was induced by injection of cerulein (50 μg/kg), and the severity of CAP was estimated by measuring serum amylase and lipase, pancreatic edema and histological changes. Pancreatic acinar cell apoptosis was determined by terminal-deoxynucleotidyl-transferase-mediated dUTP nick-end labeling (TUNEL) assay, and the expression of GRP78, XIAP and the apoptotic genes caspase-3, -7 and -9 were determined by real-time quantitative PCR and western blotting. After induction with cerulein, increased serum amylase and lipase, pancreatic edema, inflammation and apoptosis were observed in CAP rats. Furthermore, the mRNA and protein levels of GRP78 and XIAP were significantly downregulated in CAP rats, while the mRNA levels of caspase-3, -7 and -9, as well as the cell apoptotic index were markedly increased when compared with control rats (P<0.05). The expression of GRP78 and XIAP was negatively correlated with caspase expression in CAP (P<0.05). This study suggests that the downregulation of GRP78 and XIAP were correlated with apoptosis in pancreatic acinar cells, and that this may occur through the regulation of caspase activation during CAP. D.A. Spandidos 2012-12-18 2013-03 /pmc/articles/PMC3597459/ /pubmed/23254244 http://dx.doi.org/10.3892/mmr.2012.1241 Text en Copyright © 2013, Spandidos Publications http://creativecommons.org/licenses/by/3.0 This is an open-access article licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. The article may be redistributed, reproduced, and reused for non-commercial purposes, provided the original source is properly cited.
spellingShingle Articles
LIU, YONG
ZHOU, ZONG-GUANG
ZHOU, BING
WANG, RONG
YAN, HUI
LI, YUAN
Downregulation of GRP78 and XIAP is correlated with apoptosis during cerulein-induced acute pancreatitis in rats via regulation of caspase activation
title Downregulation of GRP78 and XIAP is correlated with apoptosis during cerulein-induced acute pancreatitis in rats via regulation of caspase activation
title_full Downregulation of GRP78 and XIAP is correlated with apoptosis during cerulein-induced acute pancreatitis in rats via regulation of caspase activation
title_fullStr Downregulation of GRP78 and XIAP is correlated with apoptosis during cerulein-induced acute pancreatitis in rats via regulation of caspase activation
title_full_unstemmed Downregulation of GRP78 and XIAP is correlated with apoptosis during cerulein-induced acute pancreatitis in rats via regulation of caspase activation
title_short Downregulation of GRP78 and XIAP is correlated with apoptosis during cerulein-induced acute pancreatitis in rats via regulation of caspase activation
title_sort downregulation of grp78 and xiap is correlated with apoptosis during cerulein-induced acute pancreatitis in rats via regulation of caspase activation
topic Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3597459/
https://www.ncbi.nlm.nih.gov/pubmed/23254244
http://dx.doi.org/10.3892/mmr.2012.1241
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