Abstract P1-07-16: Liver derived epithelial cells as source of false positive circulating tumor cells in early breast cancer

2012 
The MAINTRAC technique as introduced by our coworkers from Jena (RBC lysis, fluorometric detection and analysis on Olympius ScanR) detects more circulating epithelial cells than techniques using enrichment. Also cells with a low EPCAM expression are detected and not only the typical cells with bright expression found after immunomagnetic enrichment. The relative cheapness and reproducibility allows frequent monitoring during and after therapy Using 3 colour detection (EPCAMfitc, DAPI, Vimentin PE) living and dead circulating epithelial cells in EMT, or cells in EMT with stemcell markers (EPCAMfitc, Vimentin-PE, CD44PacBlue) can be detected. In early breast cancer (n = 135) cells can be found in 60% of patients and in 40% higher cell counts (>100 ml are detectable. A control population(n = 100) showed low numbers in 98% (e.g ( Citation Information: Cancer Res 2012;72(24 Suppl):Abstract nr P1-07-16.
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