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10.1038/onc.2011.197 http://scihub22266oqcxt.onion/10.1038/onc.2011.197 C4696862!4696862 !21643012     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=21643012 &cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 245.2 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\21643012 .jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117       Oncogene 2011 ; 30 (49 ): 4910-20 Nephropedia Template TP {{tp|p=21643012 |t=2011. A novel oncogenic mechanism in Ewing sarcoma involving IGF pathway targeting by EWS/Fli1-regulated microRNAs |pdf=|usr=}}{{21643012 }} gab.com Text A novel oncogenic mechanism in Ewing sarcoma involving IGF pathway targeting by EWS/Fli1-regulated microRNAs JO: Oncogene http://www.kidney.de/pget.php?&tw=1&pmid=21643012 #FOAvip MicroRNAs (miRs) are a novel class of cellular bioactive molecules with critical functions in the regulation of gene expression in normal biology and disease. MiRs are frequently misexpressed in cancer, with potent biological consequences. However, relatively little is known about miRs in pediatric cancers, including sarcomas. Moreover, the mechanisms behind aberrant miR expression in cancer are poorly understood. Ewing sarcoma is an aggressive pediatric malignancy driven by EWS/Ets fusion oncoproteins, which are gain-of-function transcriptional regulators. We employed stable silencing of EWS/Fli1, the most common of the oncogenic fusions, and global miR profiling to identify EWS/Fli1-regulated miRs with oncogenesis-modifying roles in Ewing sarcoma. In this report, we characterize a group of miRs (100, 125b, 22, 221/222, 27a and 29a) strongly repressed by EWS/Fli1. Strikingly, all of these miRs have predicted targets in the insulin-like growth factor (IGF) signaling pathway, a pivotal driver of Ewing sarcoma oncogenesis. We demonstrate that miRs in this group negatively regulate the expression of multiple pro-oncogenic components of the IGF pathway, namely IGF-1, IGF-1 receptor, mammalian/mechanistic target of rapamycin and ribosomal protein S6 kinase A1. Consistent with tumor-suppressive functions, these miRs manifest growth inhibitory properties in Ewing sarcoma cells. Our studies thus uncover a novel oncogenic mechanism in Ewing sarcoma, involving post-transcriptional derepression of IGF signaling by the EWS/Fli1 fusion oncoprotein via miRs. This novel pathway may be amenable to innovative therapeutic targeting in Ewing sarcoma and other malignancies with activated IGF signaling. Twit Text FOAVip A novel oncogenic mechanism in Ewing sarcoma involving IGF pathway targeting by EWS/Fli1-regulated microRNAs ????Oncogene http://www.kidney.de/pget.php?&tw=1&pmid=21643012 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=21643012 #FOAvip English Wikipedia <ref>{{Cite pmid|21643012 }}</ref> A novel oncogenic mechanism in Ewing sarcoma involving IGF pathway targeting by EWS/Fli1-regulated microRNAs #MMPMID21643012 McKinsey EL ; Parrish JK ; Irwin AE ; Niemeyer BF ; Kern HB ; Birks DK ; Jedlicka P Oncogene 2011[Dec]; 30 (49 ): 4910-20 PMID21643012 show ga MicroRNAs (miRs) are a novel class of cellular bioactive molecules with critical functions in the regulation of gene expression in normal biology and disease. MiRs are frequently misexpressed in cancer, with potent biological consequences. However, relatively little is known about miRs in pediatric cancers, including sarcomas. Moreover, the mechanisms behind aberrant miR expression in cancer are poorly understood. Ewing sarcoma is an aggressive pediatric malignancy driven by EWS/Ets fusion oncoproteins, which are gain-of-function transcriptional regulators. We employed stable silencing of EWS/Fli1, the most common of the oncogenic fusions, and global miR profiling to identify EWS/Fli1-regulated miRs with oncogenesis-modifying roles in Ewing sarcoma. In this report, we characterize a group of miRs (100, 125b, 22, 221/222, 27a and 29a) strongly repressed by EWS/Fli1. Strikingly, all of these miRs have predicted targets in the insulin-like growth factor (IGF) signaling pathway, a pivotal driver of Ewing sarcoma oncogenesis. We demonstrate that miRs in this group negatively regulate the expression of multiple pro-oncogenic components of the IGF pathway, namely IGF-1, IGF-1 receptor, mammalian/mechanistic target of rapamycin and ribosomal protein S6 kinase A1. Consistent with tumor-suppressive functions, these miRs manifest growth inhibitory properties in Ewing sarcoma cells. Our studies thus uncover a novel oncogenic mechanism in Ewing sarcoma, involving post-transcriptional derepression of IGF signaling by the EWS/Fli1 fusion oncoprotein via miRs. This novel pathway may be amenable to innovative therapeutic targeting in Ewing sarcoma and other malignancies with activated IGF signaling. |*Signal Transduction [MESH] |Base Sequence [MESH] |Cell Line, Tumor [MESH] |Gene Silencing [MESH] |Humans [MESH] |MicroRNAs/genetics/*metabolism [MESH] |Oligonucleotide Array Sequence Analysis [MESH] |Proto-Oncogene Protein c-fli-1/deficiency/genetics/*metabolism [MESH] |RNA-Binding Protein EWS/deficiency/genetics/*metabolism [MESH] |Sarcoma, Ewing/*genetics/metabolism/*pathology [MESH]A novel oncogenic mechanism in Ewing sarcoma involving IGF pathway tar(epmc).pdf DeepDyve Pubget Overpricing