IL-6 expression regulates tumorigenicity and correlates with prognosis in bladder cancer.

Identification of potential tumor markers will help stratify and identify a tumor's malignant potential and its response to specific therapies. IL-6 has been reported to be a predictor in various cancers. Therefore, the present study was performed to highlight the role of IL-6 in improving trea...

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Main Authors: Miao-Fen Chen, Paul-Yang Lin, Ching-Fang Wu, Wen-Cheng Chen, Chun-Te Wu
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3640078?pdf=render
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author Miao-Fen Chen
Paul-Yang Lin
Ching-Fang Wu
Wen-Cheng Chen
Chun-Te Wu
author_facet Miao-Fen Chen
Paul-Yang Lin
Ching-Fang Wu
Wen-Cheng Chen
Chun-Te Wu
author_sort Miao-Fen Chen
collection DOAJ
description Identification of potential tumor markers will help stratify and identify a tumor's malignant potential and its response to specific therapies. IL-6 has been reported to be a predictor in various cancers. Therefore, the present study was performed to highlight the role of IL-6 in improving treatment and determining prognosis of bladder cancer. The human bladder cancer cell lines HT1376 and HT1197 were selected for cell and animal experiments, in which biological changes after experimental manipulation of IL-6 were explored, including tumor behavior and related signaling in bladder cancer. In addition, clinical specimens from 85 patients with muscle-invasive, and 50 with non-muscle invasive bladder cancers were selected for immunohistochemical staining to evaluate the predictive capacity of IL-6 in relation to clinical outcome. The data revealed that IL-6 was overexpressed in the bladder cancer specimens compared with non-malignant tissues at both mRNA and protein levels. Positive staining of IL-6 was significantly correlated with higher clinical stage, higher recurrence rate after curative treatment, and reduced survival rate. Tumor growth and invasive capability were attenuated when IL-6 was blocked. The underlying changes included decreased cell proliferation, less epithelial-mesenchymal transition (EMT), decreased DNA methyltransferase 1 expression and attenuated angiogenesis. In conclusion, our findings showed that IL-6 could be a significant predictor for clinical stage and prognosis of bladder cancer. Moreover, targeting IL-6 may be a promising strategy for treating bladder cancer.
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spelling doaj.art-7f58c36346584ad2b9d7cf9590423f142022-12-21T17:59:14ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-0184e6190110.1371/journal.pone.0061901IL-6 expression regulates tumorigenicity and correlates with prognosis in bladder cancer.Miao-Fen ChenPaul-Yang LinChing-Fang WuWen-Cheng ChenChun-Te WuIdentification of potential tumor markers will help stratify and identify a tumor's malignant potential and its response to specific therapies. IL-6 has been reported to be a predictor in various cancers. Therefore, the present study was performed to highlight the role of IL-6 in improving treatment and determining prognosis of bladder cancer. The human bladder cancer cell lines HT1376 and HT1197 were selected for cell and animal experiments, in which biological changes after experimental manipulation of IL-6 were explored, including tumor behavior and related signaling in bladder cancer. In addition, clinical specimens from 85 patients with muscle-invasive, and 50 with non-muscle invasive bladder cancers were selected for immunohistochemical staining to evaluate the predictive capacity of IL-6 in relation to clinical outcome. The data revealed that IL-6 was overexpressed in the bladder cancer specimens compared with non-malignant tissues at both mRNA and protein levels. Positive staining of IL-6 was significantly correlated with higher clinical stage, higher recurrence rate after curative treatment, and reduced survival rate. Tumor growth and invasive capability were attenuated when IL-6 was blocked. The underlying changes included decreased cell proliferation, less epithelial-mesenchymal transition (EMT), decreased DNA methyltransferase 1 expression and attenuated angiogenesis. In conclusion, our findings showed that IL-6 could be a significant predictor for clinical stage and prognosis of bladder cancer. Moreover, targeting IL-6 may be a promising strategy for treating bladder cancer.http://europepmc.org/articles/PMC3640078?pdf=render
spellingShingle Miao-Fen Chen
Paul-Yang Lin
Ching-Fang Wu
Wen-Cheng Chen
Chun-Te Wu
IL-6 expression regulates tumorigenicity and correlates with prognosis in bladder cancer.
PLoS ONE
title IL-6 expression regulates tumorigenicity and correlates with prognosis in bladder cancer.
title_full IL-6 expression regulates tumorigenicity and correlates with prognosis in bladder cancer.
title_fullStr IL-6 expression regulates tumorigenicity and correlates with prognosis in bladder cancer.
title_full_unstemmed IL-6 expression regulates tumorigenicity and correlates with prognosis in bladder cancer.
title_short IL-6 expression regulates tumorigenicity and correlates with prognosis in bladder cancer.
title_sort il 6 expression regulates tumorigenicity and correlates with prognosis in bladder cancer
url http://europepmc.org/articles/PMC3640078?pdf=render
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AT chingfangwu il6expressionregulatestumorigenicityandcorrelateswithprognosisinbladdercancer
AT wenchengchen il6expressionregulatestumorigenicityandcorrelateswithprognosisinbladdercancer
AT chuntewu il6expressionregulatestumorigenicityandcorrelateswithprognosisinbladdercancer