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- W2009615557 abstract "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 H(2)S-induced apoptosis in mouse pancreatic acinar cells. Pancreatic acinar cells were treated with 10 microM NaHS (a donor of H(2)S) 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 H(2)S. Moreover, H(2)S-induced ERK1/2, JNK1/2 and p38 activation were blocked by pre-treatment with their corresponding inhibitor in a dose-dependent manner. H(2)S-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. H(2)S 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 H(2)S-induced apoptosis. Taken together, the data suggest that activation of ERKs promotes cell survival, whereas activation of JNKs and p38 MAP kinase leads to H(2)S-induced apoptosis." @default.
- W2009615557 created "2016-06-24" @default.
- W2009615557 creator A5059386461 @default.
- W2009615557 creator A5063525443 @default.
- W2009615557 date "2008-08-01" @default.
- W2009615557 modified "2023-10-16" @default.
- W2009615557 title "H<sub>2</sub>S-induced pancreatic acinar cell apoptosis is mediated<i>via</i>JNK and p38 MAP kinase" @default.
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- W2009615557 doi "https://doi.org/10.1111/j.1582-4934.2008.00318.x" @default.
- W2009615557 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3865679" @default.
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