Expresssion data from primary mouse prostate tumor cells (primary prostate tumor cells; PPC, shrunken prostate tumor cells; S-PC, castration-resistant prostate tumor cells; CRPC)

To investigate the mechanisms underlying castration-resistant prostate cancer (CRPC) development, we used a prostate cancer (PCa) allograft mouse model. In this model, an androgen-dependent (AD) mouse prostate cancer cell line, Myc-CaP, was used. Myc-CaP cells can grow as primary prostate tumors (PPC) in immune competent FVB mice in an AD manner, when host mice are castrated, Myc-CaP allografts shrink (shrunken prostate tumor, S-PC), and later re-grow and become AR-positive CRPC. To compare the gene expression of different stage of PCa, primary cells from PPC, S-PC, and CRPC were isolated and purified. We used RNA-seq to detail the global programme of gene expression underlying castration-resistant prostate cancer (CRPC) development and identified distinct classes of up-regulated or down-regulated genes during this process. Overall design: Prostate tumors were selected at three different stages of CRPC development (PPC, S-PC, and CRPC) for RNA extraction and hybridization on Affymetrix microarrays.