Shamis SAK, McMillan DC, Edwards J. The relationship between hypoxia-inducible factor 1α (HIF-1α) and patient survival in breast cancer: Systematic review and meta-analysis.
Crit Rev Oncol Hematol 2021;
159:103231. [PMID:
33482350 DOI:
10.1016/j.critrevonc.2021.103231]
[Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 01/06/2021] [Accepted: 01/16/2021] [Indexed: 01/16/2023] Open
Abstract
INTRODUCTION
Hypoxia is a characteristic of many solid tumours and results in an increase in expression of HIF-1α. Many studies have investigated the prognostic value of HIF-1α expression in breast cancer (BC), however, the prognostic value remains unclear. Therefore, a systematic review and meta-analysis was undertaken to determine the prognostic value of HIF-1α in BC patients.
METHODS
The electronic databases PubMed and Web of science were systematically searched to identify relevant papers. The clinical outcomes included disease-free survival (DFS), recurrence-free survival (RFS) and overall survival (OS) in BC patients. Review Manager version 5.4 was employed to analysis data from 30 eligible studies (containing 6201patients).
RESULTS
High expression of HIF-1α was associated with poorer DFS and OS. There was an effect of survival analysis, study region, antibodies used, scoring and threshold methods on HIF-1α expression.
CONCLUSION
HIF-1α overexpression was significantly associated with poorer DFS and OS in breast cancer patients.
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