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Clinical significance of putative markers of cancer stem cells in gastric cancer: A retrospective cohort study.
- Source :
-
Oncotarget [Oncotarget] 2016 Sep 20; Vol. 7 (38), pp. 62049-62069. - Publication Year :
- 2016
-
Abstract
- Cancer stem cells (CSCs) are thought as the source of tumor maintaining and many CSCs markers have been identified. Regarding the heterogeneity in gastric cancer (GC), TNM stage is not enough to accurately predict the prognosis. The aim of this study was to investigate the clinical significance of CSCs markers (Lgr5, Oct4, CD133, EpCAM, CD54 and Sox2) and establish a new model based on these markers to accurately predict prognosis of GC. We retrospectively enrolled 377 GC tissues from January 2006 to October 2012 to perform immunohistochemistry (IHC), and 93 pairs of GC tissues and corresponding adjacent normal gastric tissues to perform quantitative PCR (qPCR) from December 2011 to October 2012. The clinicopathological and follow-up characteristics were collected. In IHC, Oct4, CD133 and EpCAM were independently related to tumor progression, while Sox2 were associated with well or moderate differentiation (all p<0.05). Cox regression showed that Oct4-EpCAM was an independently prognostic factor, indicating that double low expression of Oct4-EpCAM group had significantly better prognosis than control group (p=0.035). Regarding qPCR, CD133 was an independent prognostic factor, showing that the prognosis of patients with CD133 high expression was significantly worse than that of patients with CD133 low expression (p<0.001). The prognostic prediction accuracy of nomogram based on Oct4-EpCAM expression in IHC was significantly better than TNM stage alone (p=0.003). Low expressions of Oct4-EpCAM in IHC and CD133 in qPCR were favorable prognostic factors in GC. The nomogram based on Oct4-EpCAM was valuable in prognostic prediction of GC patients.<br />Competing Interests: The authors have declared that no conflicts of interest.
- Subjects :
- AC133 Antigen genetics
AC133 Antigen metabolism
Aged
Biomarkers, Tumor genetics
Cohort Studies
Epithelial Cell Adhesion Molecule genetics
Epithelial Cell Adhesion Molecule metabolism
Female
Humans
Immunohistochemistry
Kaplan-Meier Estimate
Male
Middle Aged
Multivariate Analysis
Neoplasm Metastasis
Octamer Transcription Factor-3 genetics
Octamer Transcription Factor-3 metabolism
Prognosis
Proportional Hazards Models
Retrospective Studies
SOXB1 Transcription Factors genetics
SOXB1 Transcription Factors metabolism
Stomach Neoplasms genetics
Biomarkers, Tumor metabolism
Neoplastic Stem Cells metabolism
Stomach Neoplasms metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 1949-2553
- Volume :
- 7
- Issue :
- 38
- Database :
- MEDLINE
- Journal :
- Oncotarget
- Publication Type :
- Academic Journal
- Accession number :
- 27557490
- Full Text :
- https://doi.org/10.18632/oncotarget.11384