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- W2002072986 abstract "Abstract Background Experimental evidence suggests that matrix metalloproteinase-13 (MMP-13) protein may promote breast tumor progression, however, its role is yet to be fully established. Furthermore, it is not clear whether MMP-13 can be used as an independent breast cancer biomarker. This study was conducted to assess the expression profile of MMP-13 protein in invasive breast carcinomas to determine its diagnostic and prognostic significance, as well as its correlation with other biomarkers including estrogen receptor (ER), progesterone receptor (PR), Her-2/neu, MMP-2, MMP-9, tissue inhibitor of MMP-1 and -2 (TIMP-1 and TIMP-2). Methods Immunohistochemistry (IHC) was performed on paraffin-embedded tissue microarray specimens from 263 breast carcinomas. The intensity and the extent of IHC were scored by pathologists. The correlation of the gene expression profiles with the patients' clinicopathological features and clinical outcomes were analyzed for statistical significance. Results MMP-13 protein was detected in the cytoplasm of malignant cells and peritumoral stromal cells. MMP-13 expression by tumor cells ( p < 0.001) and stromal fibroblasts ( p < 0.001) both correlated with carcinoma infiltration of lymph nodes. MMP-13 also correlated with the expression of Her-2/neu ( p = 0.015) and TIMP-1 ( p < 0.010), respectively in tumor cells. Tumor-derived, but not stromal fibroblast-derived, MMP-13 correlated with aggressive tumor phenotypes. Moreover, high levels of MMP-13 expression were associated with decreased overall survival. In parallel, the prognostic value of MMP-13 expressed by peritumoral fibroblasts seems less significant. Our data suggest that lymph node status, tumor size, Her-2/neu expression, TIMP-1 and MMP-13 expression in cancer cells are independent prognostic factors. Conclusion Tumor-derived, but not stromal fibroblast-derived, MMP-13 correlated with aggressive tumor phenotypes, and inversely correlated with overall survival of breast cancer patients. MMP-13 may serve as an independent prognostic factor for invasive breast cancer patients. MMP-13 may be particularly useful as a prognostic marker when evaluated along with Her-2/neu and lymph node status." @default.
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- W2002072986 date "2008-03-28" @default.
- W2002072986 modified "2023-10-15" @default.
- W2002072986 title "Tumor-derived matrix metalloproteinase-13 (MMP-13) correlates with poor prognosis of invasive breast cancer" @default.
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- W2002072986 doi "https://doi.org/10.1186/1471-2407-8-83" @default.
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