CEACAM6 is a prognostic biomarker and potential therapeutic target for gastric carcinoma

Guo Qing Ru, Yong Han, Wei Wang, Yuan Chen, Hui Ju Wang, Wen Juan Xu, Jie Ma, Meihua Ye, Xi Chen, Xiang Lei He, Balázs Gyorffy, Zhong Sheng Zhao, Dongsheng Huang

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5 Citations (Scopus)

Abstract

This study aims to investigate the prognostic power of carcinoembryonic antigenrelated cell adhesion molecule 6 (CEACAM6) in gastric cancer (GC) and its potential role in cancer development and progression. Data mining results show that CEACAM6 is overexpressed in gastric cancer and is correlated with lymph node metastasis. Subsequently, immunohistochemical staining was performed to determine CEACAM6 protein levels in paraffin gastric tumor specimens. Real-time reverse-transcriptionpolymerase chain reaction (RT-PCR) was conducted to detect CEACAM6 mRNA levels in fresh GC samples. CEACAM6 protein and mRNA levels were significantly up regulated in GC compared with paired normal mucosa. The IHC staining intensity of CEACAM6 was positively correlated with tumor size, Lauren's classification, vascular invasion, lymph node metastasis, distant metastasis, and TNM stage. CEACAM6 expression was inversely correlated with the five-year survival rate of GC patients. Cox multivariate analysis results demonstrated that the overall survival was independently correlated with CEACAM6 expression. A significant association was observed between CEACAM6 and distant metastases. Network analysis of downstream gene signatures revealed several hub genes such as SRC and DNM1L etc. which may mediating tumor promoting functions of CEACAM6. Further data mining discovered that Tamoxifen etc. could be therapeutic alternatives for gastric patients with CEACAM6 overexpression. Collectively, CEACAM6 overexpression is a common characteristic of GC and is associated with poor 5 year survival rate in GC. Besides, potential molecular mechanisms and treatment options were also provided.

Original languageEnglish
Pages (from-to)83673-83683
Number of pages11
JournalOncotarget
Volume8
Issue number48
DOIs
Publication statusPublished - Jan 1 2017

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Keywords

  • CEACAM6
  • Chemotherapeutics
  • Gastric carcinoma
  • Metastasis
  • Overall survival

ASJC Scopus subject areas

  • Oncology

Cite this

Ru, G. Q., Han, Y., Wang, W., Chen, Y., Wang, H. J., Xu, W. J., Ma, J., Ye, M., Chen, X., He, X. L., Gyorffy, B., Zhao, Z. S., & Huang, D. (2017). CEACAM6 is a prognostic biomarker and potential therapeutic target for gastric carcinoma. Oncotarget, 8(48), 83673-83683. https://doi.org/10.18632/oncotarget.19415