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Cancer Res. 2004 Aug 1;64(15):5068-73.

Overexpression of the anti-adhesin podocalyxin is an independent predictor of breast cancer progression.

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  • 1Department of Anatomy and Cell Biology, University of British Columbia, 2177 Wesbrook Mall, Vancouver, BC, Canada V6T 1Z3.


Podocalyxin is a CD34-related cell surface molecule with anti-adhesive qualities. We probed a tissue microarray (n = 272) linked to long-term outcome data and found that podocalyxin was highly overexpressed in a distinct subset of invasive breast carcinomas (n = 15; 6%). Univariate disease-specific (P < 0.01) and multivariate regression (P < 0.0005) analyses indicated that this overexpression is an independent indicator of poor outcome. Forced podocalyxin expression perturbed cell junctions between MCF-7 breast carcinoma cells, and it caused cell shedding from confluent monolayers. Therefore, podocalyxin overexpression is a novel predictor of breast cancer progression that may contribute to the process by perturbing tumor cell adhesion.

[PubMed - indexed for MEDLINE]
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