EpCAMhigh and EpCAMlow circulating tumor cells in metastatic prostate and breast cancer patients.

EpCAMhigh and EpCAMlow circulating tumor cells in metastatic prostate and breast cancer patients. Oncotarget. 2018 Nov 02;9(86):35705-35716 Authors: de Wit S, Manicone M, Rossi E, Lampignano R, Yang L, Zill B, Rengel-Puertas A, Ouhlen M, Crespo M, Berghuis AMS, Andree KC, Vidotto R, Trapp EK, Tzschaschel M, Colomba E, Fowler G, Flohr P, Rescigno P, Fontes MS, Zamarchi R, Fehm T, Neubauer H, Rack B, Alunni-Fabbroni M, Farace F, De Bono J, IJzerman MJ, Terstappen LWMM Abstract The presence of high expressing epithelial cell adhesion molecule (EpCAMhigh) circulating tumor cells (CTC) enumerated by CellSearch® in blood of cancer patients is strongly associated with poor prognosis. This raises the question about the presence and relation with clinical outcome of low EpCAM expressing CTC (EpCAMlow CTC). In the EU-FP7 CTC-Trap program, we investigated the presence of EpCAMhigh and EpCAMlow CTC using CellSearch, followed by microfiltration of the EpCAMhigh CTC depleted blood. Blood samples of 108 castration-resistant prostate cancer patients and 22 metastatic breast cancer patients were processed at six participating sites, using protocols and tools developed in the CTC-Trap program. Of the prostate cancer patients, 53% had ≥5 EpCAMhigh CTC and 28% had ≥5 EpCAMlow CTC. For breast cancer patients, 32% had ≥5 EpCAMhigh CTC and 36% had ≥5 EpCAMlow CTC. 70% of prostate cancer patients and 64% of breast cancer patients had in total ≥5 ...
Source: Oncotarget - Category: Cancer & Oncology Tags: Oncotarget Source Type: research