The putative genomic evolution of prostate cancer from normal epithelium to castrate-resistant, metastatic cancer Figure 2 from Mitchell and Neal British Journal of Cancer Advance Online Publication 30 June 2015 doi:10.1038/bjc.2015.234 Several approaches exist to target Eph receptors. Kinase inactivating strategies include kinase inhibitors or blocking peptides or antibodies. Kinase activating strategies include ligand stimulation, activating antibodies or ligand peptide mimetics Strategies to deliver toxic payloads following receptor activation and internalisation include coupling of cytotoxic agents or radionuclides to Eph monoclonal antibodies. © 2015 Cancer Research UK.