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Down-regulation of miR-129-5p via the Twist1-Snail feedback loop stimulates the epithelial-mesenchymal transition and is associated with poor prognosis in breast cancer

The epithelial to mesenchymal transition (EMT) plays a pivotal role in breast cancer progression. We found that overexpression of miR-129-5p reversed EMT, whereas depletion of miR-129-5p induced EMT in breast cancer cells. We demonstrated that Twist1 is a direct target of miR-129-5p. Both Twist1 and...

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Autores principales: Yu, Yue, Zhao, Ying, Sun, Xiao-Hu, Ge, Jie, Zhang, Bin, Wang, Xin, Cao, Xu-Chen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Impact Journals LLC 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4741463/
https://www.ncbi.nlm.nih.gov/pubmed/26460733
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author Yu, Yue
Zhao, Ying
Sun, Xiao-Hu
Ge, Jie
Zhang, Bin
Wang, Xin
Cao, Xu-Chen
author_facet Yu, Yue
Zhao, Ying
Sun, Xiao-Hu
Ge, Jie
Zhang, Bin
Wang, Xin
Cao, Xu-Chen
author_sort Yu, Yue
collection PubMed
description The epithelial to mesenchymal transition (EMT) plays a pivotal role in breast cancer progression. We found that overexpression of miR-129-5p reversed EMT, whereas depletion of miR-129-5p induced EMT in breast cancer cells. We demonstrated that Twist1 is a direct target of miR-129-5p. Both Twist1 and Snail transcriptionally suppressed miR-129-5p expression. Levels of miR-129-5p were low in breast cancer tissues. miR-129-5p down-regulation correlated with advanced clinical stage and poor prognosis in patients with breast cancer. miR-129-5p expression negatively correlated with Twist1 and Snail expression. Thus, miR-129-5p down-regulation fosters EMT in breast cancer by increasing Twist1-Snail and activating a negative feedback loop.
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spelling pubmed-47414632016-03-15 Down-regulation of miR-129-5p via the Twist1-Snail feedback loop stimulates the epithelial-mesenchymal transition and is associated with poor prognosis in breast cancer Yu, Yue Zhao, Ying Sun, Xiao-Hu Ge, Jie Zhang, Bin Wang, Xin Cao, Xu-Chen Oncotarget Research Paper The epithelial to mesenchymal transition (EMT) plays a pivotal role in breast cancer progression. We found that overexpression of miR-129-5p reversed EMT, whereas depletion of miR-129-5p induced EMT in breast cancer cells. We demonstrated that Twist1 is a direct target of miR-129-5p. Both Twist1 and Snail transcriptionally suppressed miR-129-5p expression. Levels of miR-129-5p were low in breast cancer tissues. miR-129-5p down-regulation correlated with advanced clinical stage and poor prognosis in patients with breast cancer. miR-129-5p expression negatively correlated with Twist1 and Snail expression. Thus, miR-129-5p down-regulation fosters EMT in breast cancer by increasing Twist1-Snail and activating a negative feedback loop. Impact Journals LLC 2015-10-07 /pmc/articles/PMC4741463/ /pubmed/26460733 Text en Copyright: © 2015 Yu et al. http://creativecommons.org/licenses/by/2.5/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Paper
Yu, Yue
Zhao, Ying
Sun, Xiao-Hu
Ge, Jie
Zhang, Bin
Wang, Xin
Cao, Xu-Chen
Down-regulation of miR-129-5p via the Twist1-Snail feedback loop stimulates the epithelial-mesenchymal transition and is associated with poor prognosis in breast cancer
title Down-regulation of miR-129-5p via the Twist1-Snail feedback loop stimulates the epithelial-mesenchymal transition and is associated with poor prognosis in breast cancer
title_full Down-regulation of miR-129-5p via the Twist1-Snail feedback loop stimulates the epithelial-mesenchymal transition and is associated with poor prognosis in breast cancer
title_fullStr Down-regulation of miR-129-5p via the Twist1-Snail feedback loop stimulates the epithelial-mesenchymal transition and is associated with poor prognosis in breast cancer
title_full_unstemmed Down-regulation of miR-129-5p via the Twist1-Snail feedback loop stimulates the epithelial-mesenchymal transition and is associated with poor prognosis in breast cancer
title_short Down-regulation of miR-129-5p via the Twist1-Snail feedback loop stimulates the epithelial-mesenchymal transition and is associated with poor prognosis in breast cancer
title_sort down-regulation of mir-129-5p via the twist1-snail feedback loop stimulates the epithelial-mesenchymal transition and is associated with poor prognosis in breast cancer
topic Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4741463/
https://www.ncbi.nlm.nih.gov/pubmed/26460733
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