Expression Profile of Wnt/β-Catenin Signalling Molecules and the Wnt Antagonist Secreted Frizzled-Related Protein 4 in Apoptosis in Breast Cancer Tissue Micro-Arrays

Expression Profile of Wnt/β-Catenin Signalling Molecules and the Wnt Antagonist Secreted Frizzled-Related Protein 4 in Apoptosis in Breast Cancer Tissue Micro-Arrays

Wnt proteins are often up-regulated in cancer. The secreted frizzled-related proteins (sFRPs) can abrogate Wnt signalling and are involved in apoptosis. We investigated the expression of Wnt1, β-Catenin, and an antagonist, sFRP4, as well as apoptosis in breast cancer using tissue micro-arrays (TMAs)...

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Bibliographic Details
Main Authors: Berry, A., Charles, A., Zeps, N., Cregan, D., Arfuso, Frank, Dharmarajan, Arunasalam
Format: Journal Article
Published: Lifescience Global 2014
Subjects:
Wnt
secreted frizzled-related protein 4
Breast
tissue micro-arrays
cancer
Online Access:http://hdl.handle.net/20.500.11937/19312
Description
Summary:Wnt proteins are often up-regulated in cancer. The secreted frizzled-related proteins (sFRPs) can abrogate Wnt signalling and are involved in apoptosis. We investigated the expression of Wnt1, β-Catenin, and an antagonist, sFRP4, as well as apoptosis in breast cancer using tissue micro-arrays (TMAs) comprising 191 tissue cores. Results demonstrated stronger staining intensity for Wnt1 in tumour versus non-tumour samples (p<0.05). Epithelial sFRP4 did not differ between invasive and non-invasive tissue; however, there was increased sFRP4 expression in the blood vessels and lymphocyte cells of tumour compared to non-tumour tissue. These data suggest Wnt involvement in determining the breast cancer phenotype and highlight a potential new role for sFRP4 as a diagnostic/prognostic marker.

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