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Title 

Expression signature of E2F1 and its associated genes predict superficial to invasive progression of bladder tumors

Authors 

J S LeeSun Hee LeemSang-Yeop LeeS C KimE S ParkS B KimSeon-Kyu KimY J KimW J KimIn-Sun Chu

Publisher 

American Society of Clinical Oncology

Issue Date 

2010

Citation 

Journal of Clinical Oncology, vol. 28, no. 6, pp. 2660-2667

Abstract 

PURPOSE: In approximately 20% of patients with superficial bladder tumors, the tumors progress to invasive tumors after treatment. Current methods of predicting the clinical behavior of these tumors prospectively are unreliable. We aim to identify a molecular signature that can reliably identify patients with high-risk superficial tumors that are likely to progress to invasive tumors. PATIENTS AND METHODS: Gene expression data were collected from tumor specimens from 165 patients with bladder cancer. Various statistical methods, including leave-one-out cross-validation methods, were applied to identify a gene expression signature that could predict the likelihood of progression to invasive tumors and to test the robustness of the expression signature in an independent cohort. The robustness of the gene expression signature was validated in an independent (n = 353) cohort. RESULTS: Supervised analysis of gene expression data revealed a gene expression signature that is strongly associated with invasive bladder tumors. A molecular classifier based on this gene expression signature correctly predicted the likelihood of progression of superficial tumor to invasive tumor. CONCLUSION: We present a molecular signature that can predict, at diagnosis, the likelihood of bladder cancer progression and, possibly, lead to improvements in patient therapy.

ISSN 

0732-183X

Link 

http://dx.doi.org/10.1200/JCO.2009.25.0977

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


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