Recent reports have emphasized the clinical relevance of detecting AR-V7 in circulating tumor cells (CTCs). Our aim was to set up a validated multicenter pipeline to measure AR-V7 by quantitative RT-PCR (RT-qPCR) in RNA isolated from CellSearch-enriched CTCs to provide an AR-V7-positive or AR-V7-negative score in a clinically acceptable time range. CellSearch-enirched CTCs from patients with metastatic castration-resistant prostate cancer were characterized by RT-qPCR.
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