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10.1074/jbc.M115.642736 http://scihub22266oqcxt.onion/10.1074/jbc.M115.642736 C4447962!4447962 !25878251     free     free     free Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\25878251 .jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117       J+Biol+Chem 2015 ; 290 (22 ): 13875-87 Nephropedia Template TP {{tp|p=25878251 |t=2015. Neutrophil Elastase Activates Protease-activated Receptor-2 (PAR2) and Transient Receptor Potential Vanilloid 4 (TRPV4) to Cause Inflammation and Pain |pdf=|usr=}}{{25878251 }} gab.com Text Neutrophil Elastase Activates Protease-activated Receptor-2 (PAR2) and Transient Receptor Potential Vanilloid 4 (TRPV4) to Cause Inflammation and Pain JO: J Biol Chem http://www.kidney.de/pget.php?&tw=1&pmid=25878251 #FOAvip Proteases that cleave protease-activated receptor-2 (PAR(2)) at Arg(36)?Ser(37) reveal a tethered ligand that binds to the cleaved receptor. PAR(2) activates transient receptor potential (TRP) channels of nociceptive neurons to induce neurogenic inflammation and pain. Although proteases that cleave PAR(2) at non-canonical sites can trigger distinct signaling cascades, the functional importance of the PAR(2)-biased agonism is uncertain. We investigated whether neutrophil elastase, a biased agonist of PAR(2), causes inflammation and pain by activating PAR2 and TRP vanilloid 4 (TRPV4). Elastase cleaved human PAR(2) at Ala(66)?Ser(67) and Ser(67)?Val(68). Elastase stimulated PAR(2)-dependent cAMP accumulation and ERK1/2 activation, but not Ca(2+) mobilization, in KNRK cells. Elastase induced PAR(2) coupling to G?s but not G?q in HEK293 cells. Although elastase did not promote recruitment of G protein-coupled receptor kinase-2 (GRK(2)) or ?-arrestin to PAR(2), consistent with its inability to promote receptor endocytosis, elastase did stimulate GRK6 recruitment. Elastase caused PAR(2)-dependent sensitization of TRPV4 currents in Xenopus laevis oocytes by adenylyl cyclase- and protein kinase A (PKA)-dependent mechanisms. Elastase stimulated PAR(2)-dependent cAMP formation and ERK1/2 phosphorylation, and a PAR(2)- and TRPV4-mediated influx of extracellular Ca(2+) in mouse nociceptors. Adenylyl cyclase and PKA-mediated elastase-induced activation of TRPV4 and hyperexcitability of nociceptors. Intraplantar injection of elastase to mice caused edema and mechanical hyperalgesia by PAR(2)- and TRPV4-mediated mechanisms. Thus, the elastase-biased agonism of PAR(2) causes G?s-dependent activation of adenylyl cyclase and PKA, which activates TRPV4 and sensitizes nociceptors to cause inflammation and pain. Our results identify a novel mechanism of elastase-induced activation of TRPV4 and expand the role of PAR(2) as a mediator of protease-driven inflammation and pain. Twit Text FOAVip Neutrophil Elastase Activates Protease-activated Receptor-2 (PAR2) and Transient Receptor Potential Vanilloid 4 (TRPV4) to Cause Inflammation and Pain ????J Biol Chem http://www.kidney.de/pget.php?&tw=1&pmid=25878251 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=25878251 #FOAvip English Wikipedia <ref>{{Cite pmid|25878251 }}</ref> Neutrophil Elastase Activates Protease-activated Receptor-2 (PAR2) and Transient Receptor Potential Vanilloid 4 (TRPV4) to Cause Inflammation and Pain #MMPMID25878251 Zhao P ; Lieu T ; Barlow N ; Sostegni S ; Haerteis S ; Korbmacher C ; Liedtke W ; Jimenez-Vargas NN ; Vanner SJ ; Bunnett NW J Biol Chem 2015[May]; 290 (22 ): 13875-87 PMID25878251 show ga Proteases that cleave protease-activated receptor-2 (PAR(2)) at Arg(36)?Ser(37) reveal a tethered ligand that binds to the cleaved receptor. PAR(2) activates transient receptor potential (TRP) channels of nociceptive neurons to induce neurogenic inflammation and pain. Although proteases that cleave PAR(2) at non-canonical sites can trigger distinct signaling cascades, the functional importance of the PAR(2)-biased agonism is uncertain. We investigated whether neutrophil elastase, a biased agonist of PAR(2), causes inflammation and pain by activating PAR2 and TRP vanilloid 4 (TRPV4). Elastase cleaved human PAR(2) at Ala(66)?Ser(67) and Ser(67)?Val(68). Elastase stimulated PAR(2)-dependent cAMP accumulation and ERK1/2 activation, but not Ca(2+) mobilization, in KNRK cells. Elastase induced PAR(2) coupling to G?s but not G?q in HEK293 cells. Although elastase did not promote recruitment of G protein-coupled receptor kinase-2 (GRK(2)) or ?-arrestin to PAR(2), consistent with its inability to promote receptor endocytosis, elastase did stimulate GRK6 recruitment. Elastase caused PAR(2)-dependent sensitization of TRPV4 currents in Xenopus laevis oocytes by adenylyl cyclase- and protein kinase A (PKA)-dependent mechanisms. Elastase stimulated PAR(2)-dependent cAMP formation and ERK1/2 phosphorylation, and a PAR(2)- and TRPV4-mediated influx of extracellular Ca(2+) in mouse nociceptors. Adenylyl cyclase and PKA-mediated elastase-induced activation of TRPV4 and hyperexcitability of nociceptors. Intraplantar injection of elastase to mice caused edema and mechanical hyperalgesia by PAR(2)- and TRPV4-mediated mechanisms. Thus, the elastase-biased agonism of PAR(2) causes G?s-dependent activation of adenylyl cyclase and PKA, which activates TRPV4 and sensitizes nociceptors to cause inflammation and pain. Our results identify a novel mechanism of elastase-induced activation of TRPV4 and expand the role of PAR(2) as a mediator of protease-driven inflammation and pain. |Animals [MESH] |Calcium/metabolism [MESH] |Cell Membrane/metabolism [MESH] |Cyclic AMP/metabolism [MESH] |Edema/metabolism/pathology [MESH] |GTP-Binding Proteins/metabolism [MESH] |Ganglia, Spinal/metabolism [MESH] |HEK293 Cells [MESH] |Humans [MESH] |Inflammation/*metabolism [MESH] |Leukocyte Elastase/*metabolism [MESH] |Male [MESH] |Mice [MESH] |Mice, Inbred C57BL [MESH] |Neurons/metabolism [MESH] |Nociception [MESH] |Oocytes/cytology/metabolism [MESH] |Pain/*metabolism [MESH] |Patch-Clamp Techniques [MESH] |Peptide Hydrolases/metabolism [MESH] |Protein Structure, Tertiary [MESH] |Receptor, PAR-2/*metabolism [MESH] |Signal Transduction [MESH] |TRPV Cation Channels/*metabolism [MESH]Neutrophil Elastase Activates Protease-activated Receptor-2 (PAR2) and(epmc).pdf DeepDyve Pubget Overpricing