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Published in: Tumor Biology 2/2015

01-02-2015 | Research Article

Cripto-1 expression and its prognostic value in human bladder cancer patients

Authors: Bingbing Wei, Wei Jin, Jun Ruan, Zhuoqun Xu, You Zhou, Jiabei Liang, Huan Cheng, Ke Jin, Xing Huang, Peng Lu, Qiang Hu

Published in: Tumor Biology | Issue 2/2015

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Abstract

Cripto-1 is an important embryonic gene that involved in self-renewal and maintenance of pluripotency of stem cells. Overexpression of Cripto-1 has been found to be correlated with tumorigenesis and may affect tumor recurrence and metastasis. The previous studies indicate that Cripto-1 might be a potential prognostic biomarker for several malignancies. The aim of this study is to examine Cripto-1 expression pattern and clinicopathological significance in human bladder cancer patients. We investigated Cripto-1 expression in 30 paired bladder cancer tissues and corresponding noncancerous bladder tissues using real-time quantitative RT-PCR (qRT-PCR). Moreover, Cripto-1 expression in 130 bladder cancer specimens and bladder cancer T24 and 5637 cells were analyzed using immunohistochemistry and immunofluorescence assays. The recurrence/metastasis-free survival was assessed by Kaplan–Meier method and log-rank test. Cox regression was also used for univariate and multivariate analyses of prognostic factors. The results showed that Cripto-1 expression is increased in bladder cancer tissues and is significantly associated with tumor size (P = 0.005) and tumor grade (P = 0.035). In addition, the expression level of Cripto-1 in bladder cancer was also found to be significantly associated with SRY-related HMG-box gene 2 expression (P = 0.003) and Ki-67 (P = 0.001). Compared with the patients with low Cripto-1 expression, the patients with high Cripto-1 expression had significantly poorer recurrence/metastasis-free survival (P = 0.011). Cox regression showed that Cripto-1 might be an independent prognostic factor for recurrence/metastasis-free survival (P = 0.036). Our findings suggest that high Cripto-1 expression might be involved in the development of bladder cancer and a potentially effective prognostic marker in bladder cancer patients.
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Metadata
Title
Cripto-1 expression and its prognostic value in human bladder cancer patients
Authors
Bingbing Wei
Wei Jin
Jun Ruan
Zhuoqun Xu
You Zhou
Jiabei Liang
Huan Cheng
Ke Jin
Xing Huang
Peng Lu
Qiang Hu
Publication date
01-02-2015
Publisher
Springer Netherlands
Published in
Tumor Biology / Issue 2/2015
Print ISSN: 1010-4283
Electronic ISSN: 1423-0380
DOI
https://doi.org/10.1007/s13277-014-2695-1

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