Expression of a novel CNPY2 isoform in colorectal cancer and its association with oncologic prognosis.
Expression of a novel CNPY2 isoform in colorectal cancer and its association with oncologic prognosis.
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DOI:
10.18632/aging.101324
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发表时间:
2017-11-13
期刊:
影响因子:
--
通讯作者:
Fang Y
中科院分区:
文献类型:
--
作者:
Peng J;Ou Q;Guo J;Pan Z;Zhang R;Wu X;Zhao Y;Deng Y;Li C;Wang F;Li L;Chen G;Lu Z;Ding P;Wan D;Fang Y
Colorectal cancer (CRC) is a leading cause of cancer-related mortality. Recently, we identified a novel biomarker, canopy fibroblast growth factor signaling regulator 2 (CNPY2) isoform2, and subsequently investigated its expression and prognostic value in CRC patients. We initially generated CNPY2 isoform2 monoclonal antibodies and examined CNPY2 isoform2 expression in CRC cell lines and tissues using quantitative real-time polymerase chain reaction, western blot and immunohistochemistry analyses. We found that CNPY2 isoform2 expression significantly increased in tumor cell lines and tissues compared with that in normal colon epithelial cells and tumor-adjacent normal tissues. Survival analysis indicated that patients with low CNPY2 isoform2 expression had poorer 5-year overall survival (OS) in both the training cohort (41.7% vs. 77.7%, P = 0.007) and validation cohort (47.1% vs. 78.8%, P = 0.002). In multivariable analysis, CNPY2 isoform2 was identified as a predictor of 5-year OS in both the training cohort [hazard ratio (HR) = 5.001; 95% confidence interval (CI) 2.156–11.598, P < 0.001) and validation cohort (HR= 2.443; 95% CI 1.197- 4.983, P = 0.014). In conclusion, CNPY2 isoform2 represents as a novel and valuable prognostic indicator for CRC patients, while the oncologic function of CNPY2 requires further study.
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影响因子:
6
作者:
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通讯作者:
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影响因子:
3.2
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通讯作者:
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