miR-200b inhibits prostate cancer EMT, growth and metastasis.

miRNA regulate gene expression at post-transcriptional level and fine-tune the key biological processes, including cancer progression. Here, we demonstrate the involvement of miR-200 b in the metastatic spread of prostate cancer. We identified miR-200 b as a downstream target of androgen receptor an...

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Main Authors: LaTanya V Williams, Dorina Veliceasa, Elena Vinokour, Olga V Volpert
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3877136?pdf=render
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author LaTanya V Williams
Dorina Veliceasa
Elena Vinokour
Olga V Volpert
author_facet LaTanya V Williams
Dorina Veliceasa
Elena Vinokour
Olga V Volpert
author_sort LaTanya V Williams
collection DOAJ
description miRNA regulate gene expression at post-transcriptional level and fine-tune the key biological processes, including cancer progression. Here, we demonstrate the involvement of miR-200 b in the metastatic spread of prostate cancer. We identified miR-200 b as a downstream target of androgen receptor and linked its expression to decreased tumorigenicity and metastatic capacity of the prostate cancer cells. Overexpression of miR-200 b in PC-3 cells significantly inhibited their proliferation and the formation of subcutaneous tumors. Moreover, in an orthotopic model, miR-200 b blocked spontaneous metastasis and angiogenesis by PC-3 cells. This decreased metastatic potential was likely due to the reversal of the epithelial-to-mesenchymal transition, as was evidenced by increased pan-epithelial marker E-cadherin and specific markers of prostate epithelium, cytokeratins 8 and 18. In contrast, mesenchymal markers, fibronectin and vimentin, were significantly downregulated by miR-200 b. Our results suggest an important role for miR-200 b in prostate cancer progression and indicate its potential utility for prostate cancer therapy.
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spelling doaj.art-ac40a7c17f6049a19e0d064ad7940afe2022-12-22T00:11:42ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-01812e8399110.1371/journal.pone.0083991miR-200b inhibits prostate cancer EMT, growth and metastasis.LaTanya V WilliamsDorina VeliceasaElena VinokourOlga V VolpertmiRNA regulate gene expression at post-transcriptional level and fine-tune the key biological processes, including cancer progression. Here, we demonstrate the involvement of miR-200 b in the metastatic spread of prostate cancer. We identified miR-200 b as a downstream target of androgen receptor and linked its expression to decreased tumorigenicity and metastatic capacity of the prostate cancer cells. Overexpression of miR-200 b in PC-3 cells significantly inhibited their proliferation and the formation of subcutaneous tumors. Moreover, in an orthotopic model, miR-200 b blocked spontaneous metastasis and angiogenesis by PC-3 cells. This decreased metastatic potential was likely due to the reversal of the epithelial-to-mesenchymal transition, as was evidenced by increased pan-epithelial marker E-cadherin and specific markers of prostate epithelium, cytokeratins 8 and 18. In contrast, mesenchymal markers, fibronectin and vimentin, were significantly downregulated by miR-200 b. Our results suggest an important role for miR-200 b in prostate cancer progression and indicate its potential utility for prostate cancer therapy.http://europepmc.org/articles/PMC3877136?pdf=render
spellingShingle LaTanya V Williams
Dorina Veliceasa
Elena Vinokour
Olga V Volpert
miR-200b inhibits prostate cancer EMT, growth and metastasis.
PLoS ONE
title miR-200b inhibits prostate cancer EMT, growth and metastasis.
title_full miR-200b inhibits prostate cancer EMT, growth and metastasis.
title_fullStr miR-200b inhibits prostate cancer EMT, growth and metastasis.
title_full_unstemmed miR-200b inhibits prostate cancer EMT, growth and metastasis.
title_short miR-200b inhibits prostate cancer EMT, growth and metastasis.
title_sort mir 200b inhibits prostate cancer emt growth and metastasis
url http://europepmc.org/articles/PMC3877136?pdf=render
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AT dorinaveliceasa mir200binhibitsprostatecanceremtgrowthandmetastasis
AT elenavinokour mir200binhibitsprostatecanceremtgrowthandmetastasis
AT olgavvolpert mir200binhibitsprostatecanceremtgrowthandmetastasis