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10.1016/j.cellsig.2015.02.024 http://scihub22266oqcxt.onion/10.1016/j.cellsig.2015.02.024 C4380640!4380640!25728513     free     free     free Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 261.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 261.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 261.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Cell+Signal 2015 ; 27 (6): 1186-97 Nephropedia Template TP {{tp|p=25728513|t=2015. Participation of proteasome-ubiquitin protein degradation in autophagy and the activation of AMP-activated protein kinase |pdf=|usr=}}{{25728513}} gab.com Text Participation of proteasome-ubiquitin protein degradation in autophagy and the activation of AMP-activated protein kinase JO: Cell Signal http://www.kidney.de/pget.php?&tw=1&pmid=25728513 #FOAvip Although activation of the AMP-activated protein kinase (AMPK) as well as of ubiquitin/proteasome degradative pathways play an essential role in the preservation of metabolic homeostasis, little is known concerning interactions between protein turnover and AMPK activity. In the present studies, we found that inhibition of the 26S proteasome resulted in rapid activation of AMPK in macrophages, epithelial and endothelial cells. This was associated with increased levels of non-degraded Ub-protein conjugates, in both cytosolic and mitochondrial fractions. Selective inhibitors of ubiquitination or siRNA-dependent knockdown of Ub-ligase E1 diminished AMPK activation in cells treated with MG132, a 26S proteasome inhibitor. In addition to inhibition of AMPK activation by Ub-ligase E1 inhibitors, deficiency in Park2 mitochondria-associated Ub-ligase E3 also reduced AMPK activation upon dissipation of mitochondrial membrane potential (??m). Accumulation of Ub-proteins was correlated with decreases in cellular bioenergetics, including mitochondria oxidative phosphorylation, and an increase in ROS formation. Antioxidants, such as N-acetyl-L-cysteine or mitochondria-targeted MitoTEMPO, effectively diminished MG132-induced AMPK activation. Glucose-dependent regulation of AMPK or AMPK-mediated autophagy was modulated by alterations in intracellular levels of Ub-protein conjugates. Our results indicate that accumulation of ubiquitinated proteins alter cellular bioenergetics and redox status, leading to AMPK activation. Twit Text FOAVip Participation of proteasome-ubiquitin protein degradation in autophagy and the activation of AMP-activated protein kinase ????Cell Signal http://www.kidney.de/pget.php?&tw=1&pmid=25728513 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=25728513 #FOAvip English Wikipedia <ref>{{Cite pmid|25728513}}</ref> Participation of proteasome-ubiquitin protein degradation in autophagy and the activation of AMP-activated protein kinase #MMPMID25728513 Jiang S; Park DW; Gao Y; Ravi S; Darley-Usmar V; Abraham E; Zmijewski JW Cell Signal 2015[Jun]; 27 (6): 1186-97 PMID25728513show ga Although activation of the AMP-activated protein kinase (AMPK) as well as of ubiquitin/proteasome degradative pathways play an essential role in the preservation of metabolic homeostasis, little is known concerning interactions between protein turnover and AMPK activity. In the present studies, we found that inhibition of the 26S proteasome resulted in rapid activation of AMPK in macrophages, epithelial and endothelial cells. This was associated with increased levels of non-degraded Ub-protein conjugates, in both cytosolic and mitochondrial fractions. Selective inhibitors of ubiquitination or siRNA-dependent knockdown of Ub-ligase E1 diminished AMPK activation in cells treated with MG132, a 26S proteasome inhibitor. In addition to inhibition of AMPK activation by Ub-ligase E1 inhibitors, deficiency in Park2 mitochondria-associated Ub-ligase E3 also reduced AMPK activation upon dissipation of mitochondrial membrane potential (??m). Accumulation of Ub-proteins was correlated with decreases in cellular bioenergetics, including mitochondria oxidative phosphorylation, and an increase in ROS formation. Antioxidants, such as N-acetyl-L-cysteine or mitochondria-targeted MitoTEMPO, effectively diminished MG132-induced AMPK activation. Glucose-dependent regulation of AMPK or AMPK-mediated autophagy was modulated by alterations in intracellular levels of Ub-protein conjugates. Our results indicate that accumulation of ubiquitinated proteins alter cellular bioenergetics and redox status, leading to AMPK activation. äParticipation of proteasome-ubiquitin protein degradation in autophagy(epmc).pdf DeepDyve Pubget Overpricing