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vol. 11
Basic research

CtBP2 Overexpression is associated with tumorigenesis and poor clinical outcome of prostate cancer

Changwen Zhang, Shuanghui Li, Baomin Qiao, Kuo Yang, Ranlu Liu, Baojie Ma, Yan Liu, Zhihong Zhang, Yong Xu

Arch Med Sci 2015; 11, 6: 1318–1323
Online publish date: 2015/12/11
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Introduction: The aim of the study was to evaluate the expression of CtBP2 in prostate cancer and to determine its relationship with clinicopathologic parameters.

Material and methods: The expression of CtBP2 in 119 prostate cancer tissues and 41 normal tissues was examined by qPCR and Western blot analysis, and the results were correlated with clinicopathologic parameters.

Results: CtBP2 expression in prostate cancer tissues was higher than that in normal samples. CtBP2 overexpression was closely correlated with serum prostatic specific antigen (PSA) (p = 0.018), advanced tumor stage (T3) (p = 0.025), higher Gleason scores (p = 0.019), positive extraprostatic extension (p = 0.012), positive vascular invasion (p = 0.011) and perineural invasion (p = 0.035). However, no significant association was found between CtBP2 abnormal expression and other parameters, including age (p = 0.776), positive lymph node (p = 0.872) and positive surgical margin (p = 0.37). Moreover, CtBP2 overexpression was significantly associated with poor clinical outcome of prostate cancer (p = 0.0168).

Conclusions: CtBP2 is overexpressed in prostate cancer, and its increased expression is closely associated with tumor progression and the outcome of prostate cancer.

prostate cancer, CtBP2, clinicopathologic parameters

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