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10.1016/j.bbrc.2012.05.081 http://scihub22266oqcxt.onion/10.1016/j.bbrc.2012.05.081 22634002!ä!22634002 Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Biochem+Biophys+Res+Commun 2012 ; 423 (1): 60-6 Nephropedia Template TP {{tp|p=22634002|t=2012. The role of myofibroblasts in upregulation of S100A8 and S100A9 and the differentiation of myeloid cells in the colorectal cancer microenvironment |pdf=|usr=}}{{22634002}} gab.com Text The role of myofibroblasts in upregulation of S100A8 and S100A9 and the differentiation of myeloid cells in the colorectal cancer microenvironment JO: Biochem Biophys Res Commun http://www.kidney.de/pget.php?&tw=1&pmid=22634002 #FOAvip BACKGROUND/AIM: S100A8/A9 and myeloid cells in the tumor microenvironment play an important role in cancer invasion and progression, and the effect of tumor-infiltrated myofibroblasts on myeloid cells in the tumor microenvironment is relatively unknown. Accordingly, we investigated the role of myofibroblasts in the upregulation of S100A8/A9 as well as in the differentiation of myeloid cells in the colorectal cancer (CRC) microenvironment. MATERIALS AND METHODS: To investigate the interactions among cancer cells, myofibroblasts, and inflammatory cells in the microenvironment of CRC, we used 10 CRC cell lines, 18CO cells and THP-1 cells, which were co-cultured with each other or cultured in conditioned media (CM) of other cells. Expression of S100A8/A9 was evaluated via Western blot, immunohistochemical staining and immunofluorescence. The secreted factors from the cell lines were analyzed using cytokine antibody array. Flow cytometry analysis was performed to analyze the differentiation markers of myeloid cells. RESULTS: 18CO CM induced increased expression of S100A8/A9 in THP-1 cells. Increased expression of S100A8/A9 was noted in inflammatory cells of the peri- and intra-tumoral areas, along with myofibroblasts in colon cancer tissue. S100A8/A9-expressing inflammatory cells also exhibited CD68 expression in colon cancer tissue, and 18CO CM induced differentiation of THP-1 cells into myeloid-derived suppressor cells (MDSCs) or M2 macrophages expressing S100A8/A9. Significant amounts of IL-6 and IL-8 were detected in 18CO CM, compared to those in both controls and THP-1 CM, and tumor-infiltrated myofibroblasts expressed IL-8 in colon cancer tissue. Finally, neutralizing antibodies to IL-6 and IL-8 attenuated 18CO CM-induced increased expression of S100A8/A9. CONCLUSIONS: The upregulation of S100A8/A9 in tumor-infiltrated myeloid cells could be triggered by IL-6 and IL-8 released from myofibroblasts, and myofibroblasts might induce the differentiation of myeloid cells into S100A8/9-expressing MDSCs or M2 macrophages in the CRC microenvironment. Twit Text FOAVip The role of myofibroblasts in upregulation of S100A8 and S100A9 and the differentiation of myeloid cells in the colorectal cancer microenvironment ????Biochem Biophys Res Commun http://www.kidney.de/pget.php?&tw=1&pmid=22634002 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=22634002 #FOAvip English Wikipedia <ref>{{Cite pmid|22634002}}</ref> The role of myofibroblasts in upregulation of S100A8 and S100A9 and the differentiation of myeloid cells in the colorectal cancer microenvironment #MMPMID22634002 Kim JH; Oh SH; Kim EJ; Park SJ; Hong SP; Cheon JH; Kim TI; Kim WH Biochem Biophys Res Commun 2012[Jun]; 423 (1): 60-6 PMID22634002show ga BACKGROUND/AIM: S100A8/A9 and myeloid cells in the tumor microenvironment play an important role in cancer invasion and progression, and the effect of tumor-infiltrated myofibroblasts on myeloid cells in the tumor microenvironment is relatively unknown. Accordingly, we investigated the role of myofibroblasts in the upregulation of S100A8/A9 as well as in the differentiation of myeloid cells in the colorectal cancer (CRC) microenvironment. MATERIALS AND METHODS: To investigate the interactions among cancer cells, myofibroblasts, and inflammatory cells in the microenvironment of CRC, we used 10 CRC cell lines, 18CO cells and THP-1 cells, which were co-cultured with each other or cultured in conditioned media (CM) of other cells. Expression of S100A8/A9 was evaluated via Western blot, immunohistochemical staining and immunofluorescence. The secreted factors from the cell lines were analyzed using cytokine antibody array. Flow cytometry analysis was performed to analyze the differentiation markers of myeloid cells. RESULTS: 18CO CM induced increased expression of S100A8/A9 in THP-1 cells. Increased expression of S100A8/A9 was noted in inflammatory cells of the peri- and intra-tumoral areas, along with myofibroblasts in colon cancer tissue. S100A8/A9-expressing inflammatory cells also exhibited CD68 expression in colon cancer tissue, and 18CO CM induced differentiation of THP-1 cells into myeloid-derived suppressor cells (MDSCs) or M2 macrophages expressing S100A8/A9. Significant amounts of IL-6 and IL-8 were detected in 18CO CM, compared to those in both controls and THP-1 CM, and tumor-infiltrated myofibroblasts expressed IL-8 in colon cancer tissue. Finally, neutralizing antibodies to IL-6 and IL-8 attenuated 18CO CM-induced increased expression of S100A8/A9. CONCLUSIONS: The upregulation of S100A8/A9 in tumor-infiltrated myeloid cells could be triggered by IL-6 and IL-8 released from myofibroblasts, and myofibroblasts might induce the differentiation of myeloid cells into S100A8/9-expressing MDSCs or M2 macrophages in the CRC microenvironment. |*Tumor Microenvironment[MESH] |Calgranulin A/*biosynthesis[MESH] |Calgranulin B/*biosynthesis[MESH] |Cell Differentiation[MESH] |Cell Line, Tumor[MESH] |Cell Movement[MESH] |Coculture Techniques[MESH] |Colorectal Neoplasms/*pathology[MESH] |Culture Media, Conditioned/pharmacology[MESH] |Humans[MESH] |Interleukin-6/metabolism[MESH] |Interleukin-8/metabolism[MESH] |Myeloid Cells/*pathology[MESH] |Myofibroblasts/*metabolism[MESH] |Neoplasm Invasiveness[MESH]The role of myofibroblasts in upregulation of S100A8 and S100A9 and th(epmc).pdf DeepDyve Pubget Overpricing