ERBB3 and prostate neoplasm: ChIP-on-chip experiments performed to address the function of ErbB380kDa in PCa progression revealed that the number of ErbB380kDa target promoters was significantly higher in aggressive PC3 cells than in LNCaP hormone-sensitive cells, matching with the increased ErbB3 nuclear staining observed in castration resistant prostate tumours (Fig 1 and [18]).