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10.7150/ijbs.12108 http://scihub22266oqcxt.onion/10.7150/ijbs.12108 C4582151!4582151 !26435693     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=26435693 &cmd=llinks): Failed to open stream: HTTP request failed! 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AICAR and Metformin Exert AMPK-dependent Effects on INS-1E Pancreatic ?-cell Apoptosis via Differential Downstream Mechanisms |pdf=|usr=}}{{26435693 }} gab.com Text AICAR and Metformin Exert AMPK-dependent Effects on INS-1E Pancreatic -cell Apoptosis via Differential Downstream Mechanisms JO: Int J Biol Sci http://www.kidney.de/pget.php?&tw=1&pmid=26435693 #FOAvip The role of AMP-activated protein kinase (AMPK) in pancreatic ?-cell apoptosis is still controversial, and the reasons for the discrepancies have not been clarified. In the current study, we observed the effects of two well-known AMPK activators 5-aminoimidazole-4-carboxamide ribonucleoside (AICAR) and metformin, on apoptosis in rat insulinoma INS-1E cells, and further explored their possible mechanisms. Both AICAR and metformin protected INS-1E cells from palmitate-induced apoptosis, as reflected by decreases in both cleaved caspase 3 protein expression and caspase 3/7 activity, and these protective effects were abrogated by AMPK inhibitor compound C. The protective action of AICAR was probably mediated by the suppression of triacylglycerol accumulation, increase in Akt phosphorylation and decrease in p38 MAPK phosphorylation, while metformin might exert its protective effect on INS-1E cells by decreases in both JNK and p38 MAPK phosphorylation. All these regulations were dependent on AMPK activation. However, under standard culture condition, AICAR increased JNK phosphorylation and promoted INS-1E cell apoptosis in an AMPK-dependent manner, whereas metformin showed no effect on apoptosis. Our study revealed that AMPK activators AICAR and metformin exhibited different effects on INS-1E cell apoptosis under different culture conditions, which might be largely attributed to different downstream mediators. Our results provided new and informative clues for better understanding of the role of AMPK in ?-cell apoptosis. Twit Text FOAVip AICAR and Metformin Exert AMPK-dependent Effects on INS-1E Pancreatic -cell Apoptosis via Differential Downstream Mechanisms ????Int J Biol Sci http://www.kidney.de/pget.php?&tw=1&pmid=26435693 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=26435693 #FOAvip English Wikipedia <ref>{{Cite pmid|26435693 }}</ref> AICAR and Metformin Exert AMPK-dependent Effects on INS-1E Pancreatic ?-cell Apoptosis via Differential Downstream Mechanisms #MMPMID26435693 Dai YL ; Huang SL ; Leng Y Int J Biol Sci 2015[]; 11 (11 ): 1272-80 PMID26435693 show ga The role of AMP-activated protein kinase (AMPK) in pancreatic ?-cell apoptosis is still controversial, and the reasons for the discrepancies have not been clarified. In the current study, we observed the effects of two well-known AMPK activators 5-aminoimidazole-4-carboxamide ribonucleoside (AICAR) and metformin, on apoptosis in rat insulinoma INS-1E cells, and further explored their possible mechanisms. Both AICAR and metformin protected INS-1E cells from palmitate-induced apoptosis, as reflected by decreases in both cleaved caspase 3 protein expression and caspase 3/7 activity, and these protective effects were abrogated by AMPK inhibitor compound C. The protective action of AICAR was probably mediated by the suppression of triacylglycerol accumulation, increase in Akt phosphorylation and decrease in p38 MAPK phosphorylation, while metformin might exert its protective effect on INS-1E cells by decreases in both JNK and p38 MAPK phosphorylation. All these regulations were dependent on AMPK activation. However, under standard culture condition, AICAR increased JNK phosphorylation and promoted INS-1E cell apoptosis in an AMPK-dependent manner, whereas metformin showed no effect on apoptosis. Our study revealed that AMPK activators AICAR and metformin exhibited different effects on INS-1E cell apoptosis under different culture conditions, which might be largely attributed to different downstream mediators. Our results provided new and informative clues for better understanding of the role of AMPK in ?-cell apoptosis. |AMP-Activated Protein Kinases/*metabolism [MESH] |Aminoimidazole Carboxamide/*analogs & derivatives/pharmacology [MESH] |Animals [MESH] |Apoptosis/drug effects [MESH] |Blotting, Western [MESH] |Cell Line, Tumor [MESH] |Lipid Metabolism/drug effects [MESH] |Metformin/*pharmacology [MESH] |Palmitates/*pharmacology [MESH] |Phosphorylation/drug effects [MESH] |Rats [MESH]AICAR and Metformin Exert AMPK-dependent Effects on INS-1E Pancreatic (epmc).pdf DeepDyve Pubget Overpricing