J Cancer 2017; 8(15):2907-2914. doi:10.7150/jca.20142 This issue

Research Paper

Low Expression of CDK10 Correlates with Adverse Prognosis in Gastric Carcinoma

Bai-wei Zhao1, 2#, Shi Chen1,3#, Yuan-Fang Li1,2#, Jun Xiang3, Zhi-Wei Zhou1, 2, Jun-Sheng Peng3, 4*✉, Ying-bo Chen1, 2*✉

1. The State Key Laboratory of Oncology in South China, Cancer Center, Sun Yat-Sen University, Guangzhou, China;
2. Department of Gastric Surgery, Cancer Center, Sun Yat-Sen University, Guangzhou, China;
3. Department of Gastrointestinal Surgery, The 6 th Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China;
4. Guangdong Institute of Gastroenterology, The 6 th Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.
# These three authors contributed equally to this manuscript.
* These two authors contributed equally to this manuscript

This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY-NC) license (https://creativecommons.org/licenses/by-nc/4.0/). See http://ivyspring.com/terms for full terms and conditions.
Zhao Bw, Chen S, Li YF, Xiang J, Zhou ZW, Peng JS, Chen Yb. Low Expression of CDK10 Correlates with Adverse Prognosis in Gastric Carcinoma. J Cancer 2017; 8(15):2907-2914. doi:10.7150/jca.20142. Available from https://www.jcancer.org/v08p2907.htm

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Background: Cyclin-dependent kinase (CDK) 10, is reported to play an essential role in the progression from the G2 to M phase of the cell cycle. Recently, reduced expression of CDK10 has been observed in several cancerous human tissue, suggesting that CDK10 is a tumor suppressor gene. However, data on its expression pattern and clinical relevance in gastric cancer are not sufficient. Therefore, this study aims to investigate CDK10 expression and its prognostic significance in primary gastric adenocarcinoma.

Methodology/Principal Findings: The expression level of CDK10 was analyzed using qRT-PCR, western blotting, and immunohistochemistry on tissue samples from 189 post-resection gastric cancer patients. The expression of CDK10 mRNA was reduced in tumor tissue samples compared with matched adjacent non-tumor tissue samples (P=0.013); this finding was confirmed by western blot analysis (P=0.016). Immunohistochemistry data indicated that CDK10 expression was significantly decreased in 92 of 189 (48.7%) gastric cancer cases. Kaplan-Meier survival curves revealed that decreased expression of CDK10 was strongly associated with a poor prognosis in gastric cancer patients (P<0.001). Multivariate Cox analysis identified CDK10 expression as an independent prognostic factor for overall survival (P=0.011).

Conclusions/Significance: Our data suggest that reduced CDK10 expression independently predicts a poor prognosis in patients with gastric cancer. CDK10 can may serve as a valuable prognostic marker and a potential target for gene therapy.