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10.1152/ajplung.00050.2016 http://scihub22266oqcxt.onion/10.1152/ajplung.00050.2016 C4867349!4867349!26968768     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 261.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Am+J+Physiol+Lung+Cell+Mol+Physiol 2016 ; 310 (9): L846-59 Nephropedia Template TP {{tp|p=26968768|t=2016. Pathogenic role of calcium-sensing receptors in the development and progression of pulmonary hypertension |pdf=|usr=}}{{26968768}} gab.com Text Pathogenic role of calcium-sensing receptors in the development and progression of pulmonary hypertension JO: Am J Physiol Lung Cell Mol Physiol http://www.kidney.de/pget.php?&tw=1&pmid=26968768 #FOAvip An increase in cytosolic free Ca2+ concentration ([Ca2+]cyt) in pulmonary arterial smooth muscle cells (PASMC) is a major trigger for pulmonary vasoconstriction and a critical stimulation for PASMC proliferation and migration. Previously, we demonstrated that expression and function of calcium sensing receptors (CaSR) in PASMC from patients with idiopathic pulmonary arterial hypertension (IPAH) and animals with experimental pulmonary hypertension (PH) were greater than in PASMC from normal subjects and control animals. However, the mechanisms by which CaSR triggers Ca2+ influx in PASMC and the implication of CaSR in the development of PH remain elusive. Here, we report that CaSR functionally interacts with TRPC6 to regulate [Ca2+]cyt in PASMC. Downregulation of CaSR or TRPC6 with siRNA inhibited Ca2+-induced [Ca2+]cyt increase in IPAH-PASMC (in which CaSR is upregulated), whereas overexpression of CaSR or TRPC6 enhanced Ca2+-induced [Ca2+]cyt increase in normal PASMC (in which CaSR expression level is low). The upregulated CaSR in IPAH-PASMC was also associated with enhanced Akt phosphorylation, whereas blockade of CaSR in IPAH-PASMC attenuated cell proliferation. In in vivo experiments, deletion of the CaSR gene in mice (casr?/?) significantly inhibited the development and progression of experimental PH and markedly attenuated acute hypoxia-induced pulmonary vasoconstriction. These data indicate that functional interaction of upregulated CaSR and upregulated TRPC6 in PASMC from IPAH patients and animals with experimental PH may play an important role in the development and progression of sustained pulmonary vasoconstriction and pulmonary vascular remodeling. Blockade or downregulation of CaSR and/or TRPC6 with siRNA or miRNA may be a novel therapeutic strategy to develop new drugs for patients with pulmonary arterial hypertension. Twit Text FOAVip Pathogenic role of calcium-sensing receptors in the development and progression of pulmonary hypertension ????Am J Physiol Lung Cell Mol Physiol http://www.kidney.de/pget.php?&tw=1&pmid=26968768 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=26968768 #FOAvip English Wikipedia <ref>{{Cite pmid|26968768}}</ref> Pathogenic role of calcium-sensing receptors in the development and progression of pulmonary hypertension #MMPMID26968768 Tang H; Yamamura A; Yamamura H; Song S; Fraidenburg DR; Chen J; Gu Y; Pohl NM; Zhou T; Jiménez-Pérez L; Ayon RJ; Desai AA; Goltzman D; Rischard F; Khalpey Z; Black SM; Garcia JGN; Makino A; Yuan JXJ Am J Physiol Lung Cell Mol Physiol 2016[May]; 310 (9): L846-59 PMID26968768show ga An increase in cytosolic free Ca2+ concentration ([Ca2+]cyt) in pulmonary arterial smooth muscle cells (PASMC) is a major trigger for pulmonary vasoconstriction and a critical stimulation for PASMC proliferation and migration. Previously, we demonstrated that expression and function of calcium sensing receptors (CaSR) in PASMC from patients with idiopathic pulmonary arterial hypertension (IPAH) and animals with experimental pulmonary hypertension (PH) were greater than in PASMC from normal subjects and control animals. However, the mechanisms by which CaSR triggers Ca2+ influx in PASMC and the implication of CaSR in the development of PH remain elusive. Here, we report that CaSR functionally interacts with TRPC6 to regulate [Ca2+]cyt in PASMC. Downregulation of CaSR or TRPC6 with siRNA inhibited Ca2+-induced [Ca2+]cyt increase in IPAH-PASMC (in which CaSR is upregulated), whereas overexpression of CaSR or TRPC6 enhanced Ca2+-induced [Ca2+]cyt increase in normal PASMC (in which CaSR expression level is low). The upregulated CaSR in IPAH-PASMC was also associated with enhanced Akt phosphorylation, whereas blockade of CaSR in IPAH-PASMC attenuated cell proliferation. In in vivo experiments, deletion of the CaSR gene in mice (casr?/?) significantly inhibited the development and progression of experimental PH and markedly attenuated acute hypoxia-induced pulmonary vasoconstriction. These data indicate that functional interaction of upregulated CaSR and upregulated TRPC6 in PASMC from IPAH patients and animals with experimental PH may play an important role in the development and progression of sustained pulmonary vasoconstriction and pulmonary vascular remodeling. Blockade or downregulation of CaSR and/or TRPC6 with siRNA or miRNA may be a novel therapeutic strategy to develop new drugs for patients with pulmonary arterial hypertension. äPathogenic role of calcium-sensing receptors in the development and pr(epmc).pdf DeepDyve Pubget Overpricing