Song N, Sung H, Choi JY, Han S, Jeon S, Song M, Lee Y, Park C, Park SK, Lee KM, Yoo KY, Noh DY, Ahn SH, Lee SA, Kang D. Preoperative serum levels of matrix metalloproteinase-2 (MMP-2) and survival of breast cancer among Korean women.
Cancer Epidemiol Biomarkers Prev 2012;
21:1371-80. [PMID:
22634108 DOI:
10.1158/1055-9965.epi-12-0293]
[Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND
Matrix metalloproteinase-2 (MMP-2) has been thought of as a predictor of recurrence or metastasis risk or prognostic markers in cancer. We evaluated whether preoperative serum levels of MMP-2 work as a prognostic biomarker in breast cancer prognosis.
METHODS
Preoperative serum levels of MMP-2 were measured with ELISA in 303 patients with histologically confirmed breast cancer. The median follow-up time for all patients was 4.24 years. The relationship of MMP-2 to survival was investigated using Cox proportional hazard regression model adjusted for the tumor-node-metastasis (TNM) stage and estrogen receptor (ER) status.
RESULTS
In the multivariate analysis, disease-free survival (DFS) was worse among patients with the third tertile of MMP-2 level than with the first tertile of MMP-2 level [hazard ratio, 1.80; 95% confidence interval (CI), 1.04-3.11; P = 0.04]. However, when the patients were stratified by age, ER status, histologic grade, and nuclear grade, inverse correlation was shown between serum MMP-2 levels and prognostic factors, and the associations between MMP-2 and DFS were only significant among patients with poor prognostic factors (HR, 2.75; 95% CI, 1.32-5.73 in ER-negative; HR, 2.90; 95% CI, 1.42-5.92 in histologic grade III; and HR, 2.61; 95% CI, 1.26-5.39 in nuclear grade III).
CONCLUSIONS
Our results suggest that the preoperative serum levels of MMP-2 were associated with the survival in patients with breast cancer in ER-negative, higher histologic grade, or higher nuclear grade breast cancers.
IMPACT
Our results indicate that serum levels of MMP-2 may play a role as prognostic biomarker in breast cancer survival.
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