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10.1111/j.1442-2050.2011.01321.x http://scihub22266oqcxt.onion/10.1111/j.1442-2050.2011.01321.x 22340517!ä!22340517 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 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 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 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 278.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 278.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 278.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534       Dis+Esophagus 2013 ; 26 (1): 75-83 Nephropedia Template TP {{tp|p=22340517|t=2013. Hypoxia suppresses E-cadherin and enhances matrix metalloproteinase-2 expression favoring esophageal carcinoma migration and invasion via hypoxia inducible factor-1 alpha activation |pdf=|usr=}}{{22340517}} gab.com Text Hypoxia suppresses E-cadherin and enhances matrix metalloproteinase-2 expression favoring esophageal carcinoma migration and invasion via hypoxia inducible factor-1 alpha activation JO: Dis Esophagus http://www.kidney.de/pget.php?&tw=1&pmid=22340517 #FOAvip The goal of this study was to explore the molecular mechanism of hypoxia inducible factor-1 alpha (HIF-1 alpha) action on migration and invasion of esophageal carcinoma cells. We used cobalt chloride (CoCl(2) ) to mimic tumor hypoxic microenvironment and analyzed the expressions of E-cadherin, matrix metalloproteinase-2 (MMP-2), and HIF-1 alpha in esophageal carcinoma cells under hypoxia by reverse transcription polymerase chain reaction and Western blotting. To analyze the function of HIF-1 alpha in Eca109 and TE1 cells, we established stable HIF-1 alpha knockdown cells using small interfering RNA. Blocking effect was detected by Western blotting. The concentrations of MMP-2 protein in the conditioned medium were also determined by enzyme-linked immunosorbent assay. Wound-healing and cell invasion assay were used to evaluate the migration and invasion of esophageal carcinoma cells. After exposure to hypoxia, expressions of HIF-1 alpha protein in Eca109 and TE1 cells were upregulated, both mRNA and protein levels of E-cadherin were downregulated, and MMP-2 were upregulated (P < 0.05), whereas HIF-1 alpha mRNA had no significant change (P > 0.05). Small interfering RNA could block HIF-1 alpha effectively under hypoxia, then enhanced E-cadherin expression and inhibited MMP-2 expression, respectively. Furthermore, expression of HIF-1 alpha protein was stable even though MMP-2 repressed by BB2516. Compared with that in normoxia, Snail expression was enhanced when Eca109 or TE1 cells exposed to hypoxia. Once HIF-1 alpha blocked, Snail expressions were inhibited accordingly. Wound recovery and the number of invading cells decreased (P < 0.05) after HIF-1 alpha blocked. The hypoxia suppresses E-cadherin expression and enhances MMP-2 expression favoring esophageal carcinoma migration and invasion via HIF-1 alpha activation. Our observations suggest that HIF-1 alpha inhibition might be an effective strategy to weaken the migration and invasion of esophageal carcinoma cells. Twit Text FOAVip Hypoxia suppresses E-cadherin and enhances matrix metalloproteinase-2 expression favoring esophageal carcinoma migration and invasion via hypoxia inducible factor-1 alpha activation ????Dis Esophagus http://www.kidney.de/pget.php?&tw=1&pmid=22340517 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=22340517 #FOAvip English Wikipedia <ref>{{Cite pmid|22340517}}</ref> Hypoxia suppresses E-cadherin and enhances matrix metalloproteinase-2 expression favoring esophageal carcinoma migration and invasion via hypoxia inducible factor-1 alpha activation #MMPMID22340517 Jing SW; Wang YD; Chen LQ; Sang MX; Zheng MM; Sun GG; Liu Q; Cheng YJ; Yang CR Dis Esophagus 2013[Jan]; 26 (1): 75-83 PMID22340517show ga The goal of this study was to explore the molecular mechanism of hypoxia inducible factor-1 alpha (HIF-1 alpha) action on migration and invasion of esophageal carcinoma cells. We used cobalt chloride (CoCl(2) ) to mimic tumor hypoxic microenvironment and analyzed the expressions of E-cadherin, matrix metalloproteinase-2 (MMP-2), and HIF-1 alpha in esophageal carcinoma cells under hypoxia by reverse transcription polymerase chain reaction and Western blotting. To analyze the function of HIF-1 alpha in Eca109 and TE1 cells, we established stable HIF-1 alpha knockdown cells using small interfering RNA. Blocking effect was detected by Western blotting. The concentrations of MMP-2 protein in the conditioned medium were also determined by enzyme-linked immunosorbent assay. Wound-healing and cell invasion assay were used to evaluate the migration and invasion of esophageal carcinoma cells. After exposure to hypoxia, expressions of HIF-1 alpha protein in Eca109 and TE1 cells were upregulated, both mRNA and protein levels of E-cadherin were downregulated, and MMP-2 were upregulated (P < 0.05), whereas HIF-1 alpha mRNA had no significant change (P > 0.05). Small interfering RNA could block HIF-1 alpha effectively under hypoxia, then enhanced E-cadherin expression and inhibited MMP-2 expression, respectively. Furthermore, expression of HIF-1 alpha protein was stable even though MMP-2 repressed by BB2516. Compared with that in normoxia, Snail expression was enhanced when Eca109 or TE1 cells exposed to hypoxia. Once HIF-1 alpha blocked, Snail expressions were inhibited accordingly. Wound recovery and the number of invading cells decreased (P < 0.05) after HIF-1 alpha blocked. The hypoxia suppresses E-cadherin expression and enhances MMP-2 expression favoring esophageal carcinoma migration and invasion via HIF-1 alpha activation. Our observations suggest that HIF-1 alpha inhibition might be an effective strategy to weaken the migration and invasion of esophageal carcinoma cells. |Blotting, Western[MESH] |Cadherins/genetics/*metabolism[MESH] |Cell Line, Tumor/metabolism/pathology[MESH] |Cell Movement/genetics/*physiology[MESH] |Down-Regulation[MESH] |Enzyme-Linked Immunosorbent Assay[MESH] |Esophageal Neoplasms/*genetics/pathology[MESH] |Gene Expression Regulation, Neoplastic[MESH] |Humans[MESH] |Hypoxia-Inducible Factor 1, alpha Subunit/*genetics/metabolism[MESH] |Matrix Metalloproteinase 2/genetics/metabolism[MESH] |Neoplasm Invasiveness/pathology[MESH] |RNA, Small Interfering/genetics/metabolism[MESH] |Reverse Transcriptase Polymerase Chain Reaction/methods[MESH] |Sensitivity and Specificity[MESH]Hypoxia suppresses E-cadherin and enhances matrix metalloproteinase-2 (epmc).pdf DeepDyve Pubget Overpricing