H2S‐induced pancreatic acinar cell apoptosis is mediated via JNK and p38 MAP kinase

Treatment of pancreatic acinar cells by hydrogen sulphide has been shown to induce apoptosis. However, a potential role of mitogen‐activated protein kinases (MAPKs) in this apoptotic pathway remains unknown. The present study examined the role of MAPKs in H2S‐induced apoptosis in mouse pancreatic ac...

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Veröffentlicht in:Journal of cellular and molecular medicine 2008-08, Vol.12 (4), p.1374-1383
Hauptverfasser: Adhikari, Sharmila, Bhatia, Madhav
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description Treatment of pancreatic acinar cells by hydrogen sulphide has been shown to induce apoptosis. However, a potential role of mitogen‐activated protein kinases (MAPKs) in this apoptotic pathway remains unknown. The present study examined the role of MAPKs in H2S‐induced apoptosis in mouse pancreatic acinar cells. Pancreatic acinar cells were treated with 10 μM NaHS (a donor of H2S) for 3 hrs. For the evaluation of the role of MAPKs, PD98059, SP600125 and SB203580 were used as MAPKs inhibitors for ERK1/2, JNK1/2 and p38 MAPK, respectively. We observed activation of ERK1/2, JNK1/2 and p38 when pancreatic acini were exposed to H2S. Moreover, H2S‐induced ERK1/2, JNK1/2 and p38 activation were blocked by pre‐treatment with their corresponding inhibitor in a dose‐dependent manner. H2S‐induced apoptosis led to an increase in caspase 3 activity and this activity was attenuated when caspase 3 inhibitor were used. Also, the cleavage of caspase 3 correlated with that of poly‐(ADP‐ribose)‐polymerase (PARP) cleavage. H2S treatment induced the release of cytochrome c, smac from mitochondria into the cytoplasm, translocation of Bax into mitochondria and decreased the protein level of Bcl‐2. Inhibition of ERK1/2 using PD98059 caused further enhancement of apoptosis as evidenced by annexin V staining, while SP600125 and SB203580 abrogated H2S‐induced apoptosis. Taken together, the data suggest that activation of ERKs promotes cell survival, whereas activation of JNKs and p38 MAP kinase leads to H2S‐induced apoptosis.
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However, a potential role of mitogen‐activated protein kinases (MAPKs) in this apoptotic pathway remains unknown. The present study examined the role of MAPKs in H2S‐induced apoptosis in mouse pancreatic acinar cells. Pancreatic acinar cells were treated with 10 μM NaHS (a donor of H2S) for 3 hrs. For the evaluation of the role of MAPKs, PD98059, SP600125 and SB203580 were used as MAPKs inhibitors for ERK1/2, JNK1/2 and p38 MAPK, respectively. We observed activation of ERK1/2, JNK1/2 and p38 when pancreatic acini were exposed to H2S. Moreover, H2S‐induced ERK1/2, JNK1/2 and p38 activation were blocked by pre‐treatment with their corresponding inhibitor in a dose‐dependent manner. H2S‐induced apoptosis led to an increase in caspase 3 activity and this activity was attenuated when caspase 3 inhibitor were used. Also, the cleavage of caspase 3 correlated with that of poly‐(ADP‐ribose)‐polymerase (PARP) cleavage. H2S treatment induced the release of cytochrome c, smac from mitochondria into the cytoplasm, translocation of Bax into mitochondria and decreased the protein level of Bcl‐2. Inhibition of ERK1/2 using PD98059 caused further enhancement of apoptosis as evidenced by annexin V staining, while SP600125 and SB203580 abrogated H2S‐induced apoptosis. Taken together, the data suggest that activation of ERKs promotes cell survival, whereas activation of JNKs and p38 MAP kinase leads to H2S‐induced apoptosis.</description><identifier>ISSN: 1582-1838</identifier><identifier>EISSN: 1582-4934</identifier><identifier>DOI: 10.1111/j.1582-4934.2008.00318.x</identifier><identifier>PMID: 18373739</identifier><language>eng</language><publisher>Oxford, UK: Blackwell Publishing Ltd</publisher><subject>Acinar cells ; Animals ; Annexin V ; Antibodies ; Apoptosis ; Apoptosis - drug effects ; BAX protein ; Bcl-2 protein ; bcl-2-Associated X Protein - metabolism ; Biotechnology ; Carrier Proteins - metabolism ; Caspase 3 - metabolism ; Caspase-3 ; Cell activation ; Cell cycle ; Cell survival ; Cytochrome ; Cytochrome c ; Cytochromes c - metabolism ; Cytoplasm ; DIABLO protein ; Enzyme Activation - drug effects ; ERK ; Experiments ; Extracellular signal-regulated kinase ; Extracellular Signal-Regulated MAP Kinases - metabolism ; Fluorides ; H2S ; Hydrogen sulfide ; JNK ; JNK Mitogen-Activated Protein Kinases - metabolism ; Kinases ; Laboratory animals ; Male ; MAP kinase ; Metabolism ; Mice ; Mitochondria ; Mitochondrial Proteins - metabolism ; Models, Biological ; p38 ; p38 Mitogen-Activated Protein Kinases - metabolism ; Pancreas ; Pancreas, Exocrine - cytology ; Pancreas, Exocrine - enzymology ; Phosphoproteins - metabolism ; Phosphorylation ; Phosphorylation - drug effects ; Poly(ADP-ribose) Polymerases - metabolism ; Protein transport ; Protein Transport - drug effects ; Proteins ; Sulfides - pharmacology</subject><ispartof>Journal of cellular and molecular medicine, 2008-08, Vol.12 (4), p.1374-1383</ispartof><rights>2008 The Authors Journal compilation © 2008 Foundation for Cellular and Molecular Medicine/Blackwell Publishing Ltd</rights><rights>2008. 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However, a potential role of mitogen‐activated protein kinases (MAPKs) in this apoptotic pathway remains unknown. The present study examined the role of MAPKs in H2S‐induced apoptosis in mouse pancreatic acinar cells. Pancreatic acinar cells were treated with 10 μM NaHS (a donor of H2S) for 3 hrs. For the evaluation of the role of MAPKs, PD98059, SP600125 and SB203580 were used as MAPKs inhibitors for ERK1/2, JNK1/2 and p38 MAPK, respectively. We observed activation of ERK1/2, JNK1/2 and p38 when pancreatic acini were exposed to H2S. Moreover, H2S‐induced ERK1/2, JNK1/2 and p38 activation were blocked by pre‐treatment with their corresponding inhibitor in a dose‐dependent manner. H2S‐induced apoptosis led to an increase in caspase 3 activity and this activity was attenuated when caspase 3 inhibitor were used. Also, the cleavage of caspase 3 correlated with that of poly‐(ADP‐ribose)‐polymerase (PARP) cleavage. H2S treatment induced the release of cytochrome c, smac from mitochondria into the cytoplasm, translocation of Bax into mitochondria and decreased the protein level of Bcl‐2. Inhibition of ERK1/2 using PD98059 caused further enhancement of apoptosis as evidenced by annexin V staining, while SP600125 and SB203580 abrogated H2S‐induced apoptosis. Taken together, the data suggest that activation of ERKs promotes cell survival, whereas activation of JNKs and p38 MAP kinase leads to H2S‐induced apoptosis.</description><subject>Acinar cells</subject><subject>Animals</subject><subject>Annexin V</subject><subject>Antibodies</subject><subject>Apoptosis</subject><subject>Apoptosis - drug effects</subject><subject>BAX protein</subject><subject>Bcl-2 protein</subject><subject>bcl-2-Associated X Protein - metabolism</subject><subject>Biotechnology</subject><subject>Carrier Proteins - metabolism</subject><subject>Caspase 3 - metabolism</subject><subject>Caspase-3</subject><subject>Cell activation</subject><subject>Cell cycle</subject><subject>Cell survival</subject><subject>Cytochrome</subject><subject>Cytochrome c</subject><subject>Cytochromes c - metabolism</subject><subject>Cytoplasm</subject><subject>DIABLO protein</subject><subject>Enzyme Activation - drug effects</subject><subject>ERK</subject><subject>Experiments</subject><subject>Extracellular signal-regulated kinase</subject><subject>Extracellular Signal-Regulated MAP Kinases - metabolism</subject><subject>Fluorides</subject><subject>H2S</subject><subject>Hydrogen sulfide</subject><subject>JNK</subject><subject>JNK Mitogen-Activated Protein Kinases - metabolism</subject><subject>Kinases</subject><subject>Laboratory animals</subject><subject>Male</subject><subject>MAP kinase</subject><subject>Metabolism</subject><subject>Mice</subject><subject>Mitochondria</subject><subject>Mitochondrial Proteins - metabolism</subject><subject>Models, Biological</subject><subject>p38</subject><subject>p38 Mitogen-Activated Protein Kinases - metabolism</subject><subject>Pancreas</subject><subject>Pancreas, Exocrine - cytology</subject><subject>Pancreas, Exocrine - enzymology</subject><subject>Phosphoproteins - metabolism</subject><subject>Phosphorylation</subject><subject>Phosphorylation - drug effects</subject><subject>Poly(ADP-ribose) Polymerases - metabolism</subject><subject>Protein transport</subject><subject>Protein Transport - drug effects</subject><subject>Proteins</subject><subject>Sulfides - pharmacology</subject><issn>1582-1838</issn><issn>1582-4934</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNpdUdtOxCAQJUbj_RcMiYlvW2GnF_qgidl4d9VEfSZTYJW129bS6vrmJ_iNfolU1yuQMGHOnDnDIYRyFnC_tscBj0S_F6YQBn3GRMAYcBFM58jyd2J-FnMBYomsODf2oJhDukiW_Fvid7pMbo76V28vr7bQrTKaVlio2mBjFUVlC6ypMnlOsSqrpnTWUX8mRltsPPjRIj05P6VY-EIQdLh3Se99kTNrZGGEuTPrs3uV3BzsXw-OemcXh8eDvbNeBWksemEMJoujOElQpzpUmUKhE4BspJSJmMkwU4nSIYsFoObaRKFSPGFapSPsawGrZPeTt2ozL0uZoqkxl1VtJ1g_yxKt_Jsp7J28LR8liK5t6gm2ZgR1-dAa18iJdd3IWJiydTJOI-DAuk6b_4Djsq0LP5wEloRJzOCDbuO3nm8hX__tATufgCebm-efPJOdr3IsO8tkZ5_sfJUfvsqpPBkMhz6Cd7ODl84</recordid><startdate>200808</startdate><enddate>200808</enddate><creator>Adhikari, Sharmila</creator><creator>Bhatia, Madhav</creator><general>Blackwell Publishing Ltd</general><general>John Wiley &amp; 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However, a potential role of mitogen‐activated protein kinases (MAPKs) in this apoptotic pathway remains unknown. The present study examined the role of MAPKs in H2S‐induced apoptosis in mouse pancreatic acinar cells. Pancreatic acinar cells were treated with 10 μM NaHS (a donor of H2S) for 3 hrs. For the evaluation of the role of MAPKs, PD98059, SP600125 and SB203580 were used as MAPKs inhibitors for ERK1/2, JNK1/2 and p38 MAPK, respectively. We observed activation of ERK1/2, JNK1/2 and p38 when pancreatic acini were exposed to H2S. Moreover, H2S‐induced ERK1/2, JNK1/2 and p38 activation were blocked by pre‐treatment with their corresponding inhibitor in a dose‐dependent manner. H2S‐induced apoptosis led to an increase in caspase 3 activity and this activity was attenuated when caspase 3 inhibitor were used. Also, the cleavage of caspase 3 correlated with that of poly‐(ADP‐ribose)‐polymerase (PARP) cleavage. H2S treatment induced the release of cytochrome c, smac from mitochondria into the cytoplasm, translocation of Bax into mitochondria and decreased the protein level of Bcl‐2. Inhibition of ERK1/2 using PD98059 caused further enhancement of apoptosis as evidenced by annexin V staining, while SP600125 and SB203580 abrogated H2S‐induced apoptosis. Taken together, the data suggest that activation of ERKs promotes cell survival, whereas activation of JNKs and p38 MAP kinase leads to H2S‐induced apoptosis.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><pmid>18373739</pmid><doi>10.1111/j.1582-4934.2008.00318.x</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record>
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subjects Acinar cells
Animals
Annexin V
Antibodies
Apoptosis
Apoptosis - drug effects
BAX protein
Bcl-2 protein
bcl-2-Associated X Protein - metabolism
Biotechnology
Carrier Proteins - metabolism
Caspase 3 - metabolism
Caspase-3
Cell activation
Cell cycle
Cell survival
Cytochrome
Cytochrome c
Cytochromes c - metabolism
Cytoplasm
DIABLO protein
Enzyme Activation - drug effects
ERK
Experiments
Extracellular signal-regulated kinase
Extracellular Signal-Regulated MAP Kinases - metabolism
Fluorides
H2S
Hydrogen sulfide
JNK
JNK Mitogen-Activated Protein Kinases - metabolism
Kinases
Laboratory animals
Male
MAP kinase
Metabolism
Mice
Mitochondria
Mitochondrial Proteins - metabolism
Models, Biological
p38
p38 Mitogen-Activated Protein Kinases - metabolism
Pancreas
Pancreas, Exocrine - cytology
Pancreas, Exocrine - enzymology
Phosphoproteins - metabolism
Phosphorylation
Phosphorylation - drug effects
Poly(ADP-ribose) Polymerases - metabolism
Protein transport
Protein Transport - drug effects
Proteins
Sulfides - pharmacology
title H2S‐induced pancreatic acinar cell apoptosis is mediated via JNK and p38 MAP kinase
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