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10.3389/fphys.2020.579712 http://scihub22266oqcxt.onion/10.3389/fphys.2020.579712 33192584!7642801!33192584     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 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       Front+Physiol 2020 ; 11 (ä): 579712 Nephropedia Template TP {{tp|p=33192584|t=2020. Disruption of STAT6 Signal Promotes Cardiac Fibrosis Through the Mobilization and Transformation of CD11b(+) Immature Myeloid Cells |pdf=|usr=}}{{33192584}} gab.com Text Disruption of STAT6 Signal Promotes Cardiac Fibrosis Through the Mobilization and Transformation of CD11b(+) Immature Myeloid Cells JO: Front Physiol http://www.kidney.de/pget.php?&tw=1&pmid=33192584 #FOAvip Cardiac fibrosis is an important pathological basis of various cardiovascular diseases. The roles of STAT6 signal in allergy, immune regulation, tumorigenesis, and renal fibrosis have been documented. However, the function and mechanism of STAT6 signal in sympathetic overactivation-induced cardiac fibrosis have not been fully elucidated. This study explores the novel role of STAT6 signal in isoproterenol (ISO)-induced cardiac fibrosis through the regulation of inflammatory response and the differentiation of macrophages from immature myeloid cells. The expression levels of STAT6, beta1-adrenergic receptor (beta1-AR), and inflammatory factors [interleukin alpha (IL-1alpha), IL-6, IL-18, and transforming growth factor beta (TGF-beta)] in CD11b(+) myeloid cells were analyzed with a microarray study. The levels of IL-6 and TGF-beta1 in the CD11b(+) myeloid cells-derived macrophages were detected with reverse transcriptase-polymerase chain reaction (RT-PCR). STAT6-knockout (KO) and WT mice were used to establish a murine cardiac fibrosis model by ISO injection. Cardiac fibroblasts were isolated from the hearts of newborn STAT6-KO and WT mice, and STAT6 expression was measured by Western blotting and RT-PCR after ISO stimulation, while alpha-smooth muscle actin (alpha-SMA) expression was detected by immunofluorescence and immunohistochemistry staining. Cardiac function and pathological characteristics were examined by echocardiography and immunohistochemistry staining, respectively. Immunohistochemistry staining with anti-CD11b was performed to detect the infiltration of CD11b(+) myeloid cells in heart tissue. Flow cytometry analysis was used to measure the percentages of CD11b(+) myeloid cells and CD11b(+)Ly6C(+) macrophages in the peripheral blood. The results showed that STAT6 was highly expressed in CD11b(+) myeloid cells located in injured hearts, and STAT6 expression in cardiac fibroblasts was down-regulated after ISO treatment. STAT6 deficiency further aggravated ISO-induced increased expression of alpha-SMA in cardiac fibroblasts, myocardial fibrosis, and cardiac dysfunction. The activation of ISO/beta1-AR signal aggravated cardiac inflammatory infiltration, promoted CD11b(+) myeloid cell mobilization, and enhanced CD11b(+)Ly6C(+/low) macrophage differentiation, which was further exacerbated by STAT6 deficiency. Furthermore, beta1-AR mRNA expression significantly increased in splenic CD11b(+) myeloid cells compared to their bone marrow-derived controls, and STAT6 deficiency promoted beta1-AR expression in an MI-induced sensitive cardiac fibrosis mouse model. The spleen-derived CD11b(+) myeloid cells of STAT6-KO mice produced more IL-1alpha, IL-18, and TGF-beta than their WT counterparts. Taken together, these results suggest that STAT6 signal plays a critical role in ISO-induced beta1-AR overactivation and systemic inflammatory cascades, contributing to cardiac fibrogenesis. STAT6 should be a promising cardioprotective target against myocardial fibrosis and heart failure after beta1-AR overactivation-induced myocardial injury. Twit Text FOAVip Disruption of STAT6 Signal Promotes Cardiac Fibrosis Through the Mobilization and Transformation of CD11b(+) Immature Myeloid Cells ????Front Physiol http://www.kidney.de/pget.php?&tw=1&pmid=33192584 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=33192584 #FOAvip English Wikipedia <ref>{{Cite pmid|33192584}}</ref> Disruption of STAT6 Signal Promotes Cardiac Fibrosis Through the Mobilization and Transformation of CD11b(+) Immature Myeloid Cells #MMPMID33192584 Zhang W; Zhu B; Ding S; Wang X; Wu J; Zhu X; Zou Y; Ge J; Tong M; Yang X Front Physiol 2020[]; 11 (ä): 579712 PMID33192584show ga Cardiac fibrosis is an important pathological basis of various cardiovascular diseases. The roles of STAT6 signal in allergy, immune regulation, tumorigenesis, and renal fibrosis have been documented. However, the function and mechanism of STAT6 signal in sympathetic overactivation-induced cardiac fibrosis have not been fully elucidated. This study explores the novel role of STAT6 signal in isoproterenol (ISO)-induced cardiac fibrosis through the regulation of inflammatory response and the differentiation of macrophages from immature myeloid cells. The expression levels of STAT6, beta1-adrenergic receptor (beta1-AR), and inflammatory factors [interleukin alpha (IL-1alpha), IL-6, IL-18, and transforming growth factor beta (TGF-beta)] in CD11b(+) myeloid cells were analyzed with a microarray study. The levels of IL-6 and TGF-beta1 in the CD11b(+) myeloid cells-derived macrophages were detected with reverse transcriptase-polymerase chain reaction (RT-PCR). STAT6-knockout (KO) and WT mice were used to establish a murine cardiac fibrosis model by ISO injection. Cardiac fibroblasts were isolated from the hearts of newborn STAT6-KO and WT mice, and STAT6 expression was measured by Western blotting and RT-PCR after ISO stimulation, while alpha-smooth muscle actin (alpha-SMA) expression was detected by immunofluorescence and immunohistochemistry staining. Cardiac function and pathological characteristics were examined by echocardiography and immunohistochemistry staining, respectively. Immunohistochemistry staining with anti-CD11b was performed to detect the infiltration of CD11b(+) myeloid cells in heart tissue. Flow cytometry analysis was used to measure the percentages of CD11b(+) myeloid cells and CD11b(+)Ly6C(+) macrophages in the peripheral blood. The results showed that STAT6 was highly expressed in CD11b(+) myeloid cells located in injured hearts, and STAT6 expression in cardiac fibroblasts was down-regulated after ISO treatment. STAT6 deficiency further aggravated ISO-induced increased expression of alpha-SMA in cardiac fibroblasts, myocardial fibrosis, and cardiac dysfunction. The activation of ISO/beta1-AR signal aggravated cardiac inflammatory infiltration, promoted CD11b(+) myeloid cell mobilization, and enhanced CD11b(+)Ly6C(+/low) macrophage differentiation, which was further exacerbated by STAT6 deficiency. Furthermore, beta1-AR mRNA expression significantly increased in splenic CD11b(+) myeloid cells compared to their bone marrow-derived controls, and STAT6 deficiency promoted beta1-AR expression in an MI-induced sensitive cardiac fibrosis mouse model. The spleen-derived CD11b(+) myeloid cells of STAT6-KO mice produced more IL-1alpha, IL-18, and TGF-beta than their WT counterparts. Taken together, these results suggest that STAT6 signal plays a critical role in ISO-induced beta1-AR overactivation and systemic inflammatory cascades, contributing to cardiac fibrogenesis. STAT6 should be a promising cardioprotective target against myocardial fibrosis and heart failure after beta1-AR overactivation-induced myocardial injury. äDisruption of STAT6 Signal Promotes Cardiac Fibrosis Through the Mobil(epmc).pdf DeepDyve Pubget Overpricing