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Prognostic significance of CD24 and CD44 in breast cancer: a meta-analysis

Prognostic significance of CD24 and CD44 in breast cancer: a meta-analysis

Int J Biol Markers 2017; 32(1): e75 - e82

Article Type: ORIGINAL RESEARCH ARTICLE

DOI:10.5301/jbm.5000224

Authors

Zhu Wang, Qianqian Wang, Qi Wang, Yanping Wang, Jie Chen

Abstract

Objective

Numerous studies have focused on the prognostic roles of CD24 and CD44 in breast cancer, but the results have been equivocal. The aim of this study was to gain better insight into the relationship between expression of CD24 and of CD44, either alone or in combination, and prognostic parameters in breast cancer.

Methods

Publications addressing the associations of CD24 or CD44 expression with survival outcome in breast cancer were selected for the meta-analysis according to defined criteria. Studies were pooled and odds ratios (ORs) or hazard ratios (HRs) were calculated. Publication bias and sensitivity analyses were also conducted.

Results

Sixteen studies comprising 5,697 breast cancer cases were included in our meta-analysis. Overall, CD24 overexpression was significantly associated with histological grade (OR = 1.52; 95% CI 1.12-2.06, p = 0.007), stage (OR = 1.74; 95% CI 1.27-2.40, p<0.001), shortened overall survival (HR = 1.48; 95% CI 1.21-1.80, p<0.001) and disease-free survival (HR 1.45, 95% CI 1.19-1.76, p<0.001), while no such association was observed when we limited our analysis to CD44 and CD44+/CD24- phenotypes. Subgroup analyses for CD24 according to the studies categorized by ethnicity, staining patterns and follow-up period were also conducted, and supported the stability of the prognostic role of CD24.

Conclusions

Our study demonstrated that the putative stem cell marker CD24 was significantly associated with worse survival based on the obtained data. In particular, CD24 may play a role in tumorigenesis and cancer progression. However, further large-scale studies are needed to confirm these findings.

Article History

Disclosures

Financial support: This study was supported by Projects in the Science and Technology Pillar Program from the Department of Science and Technology of Sichuan Province (2015SZ0151).
Conflict of interest: None.

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Authors

Affiliations

  • Laboratory of Molecular Diagnosis of Cancer, Cancer Center, West China Hospital of Sichuan University, Chengdu, Sichuan - China
  • Department of Pharmacy, Luzhou People’s Hospital, Luzhou, Sichuan - China
  • Department of Thyroid and Breast Surgery, West China Hospital of Sichuan University, Chengdu, Sichuan - China
  • Zhu Wang and Qianqian Wang contributed equally to this work.

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