Tumor Biology

, Volume 37, Issue 8, pp 10883–10891 | Cite as

Decreased expression of Siglec-8 associates with poor prognosis in patients with gastric cancer after surgical resection

  • Yifan Cao
  • Hao Liu
  • Heng Zhang
  • Chao Lin
  • Ruochen Li
  • Weijuan Zhang
  • Zhenbin Shen
  • Jiejie Xu
Original Article


The expression of sialic acid-binding Ig-like lectin (Siglec) family has been detected in many malignant tumors and correlated with patient outcomes. The present study aims to investigate the prognostic value of Siglec-8 expression and refine current risk stratification system in patients with gastric cancer. Two independent sets of patients (n = 78; n = 356, respectively) with gastric cancer from Zhongshan Hospital were enrolled into this study. The expression of Siglec-8 was detected by immunohistochemistry. Cox regression analysis was used to assess the prognostic value of Siglec-8 expression and clinical outcomes. A novel molecular prognostic stratification system combining intratumoral Siglec-8 expression with TNM stage was determined by means of receiver operating characteristic analysis. Multivariate Cox regression analysis identified that intratumoral Siglec-8 low expression was an independent prognostic factor for dismal overall survival of patients with gastric cancer. Incorporating intratumoral Siglec-8 expression into the current TNM staging system showed more accuracy for predicting prognosis of patients with gastric cancer. Our study suggested that intratumoral Siglec-8 expression was an independent prognostic factor for overall survival of patients with gastric cancer. Incorporating Siglec-8 expression level into current TNM staging system might add more comprehensive prognostic information for patients with gastric cancer and lead to a more precise risk stratification system for predicting clinical outcomes.


Gastric cancer Siglec-8 Prognosis Biomarker Overall survival 



This study was funded by grants from the National Basic Research Program of China (2012CB822104), National Key Projects for Infectious Diseases of China (2012ZX10002012-007 and 2016ZX10002018-008), National Natural Science Foundation of China (31100629, 31270863, 81372755, 31470794, 81401988, 81402082, 81402085, 81471621, 81472227, 81472376, 31570803, 81501999, and 81572352), and Program for New Century Excellent Talents in University (NCET-13-0146). All these study sponsors have no roles in the study design, in the collection, analysis, and interpretation of data.

Compliance with ethical standards

Conflicts of interest



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Copyright information

© International Society of Oncology and BioMarkers (ISOBM) 2016

Authors and Affiliations

  1. 1.Department of Biochemistry and Molecular Biology, School of Basic Medical SciencesFudan UniversityShanghaiChina
  2. 2.Department of General Surgery, Zhongshan HospitalFudan UniversityShanghaiChina
  3. 3.Department of Immunology, School of Basic Medical SciencesFudan UniversityShanghaiChina

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