EPHA7 and posterior cortical atrophy: Consistent with these data, the current study identified the interaction between EphA7 and ephrinA5 in PCa cells and revealed EphA7 tyrosine phosphorylation of PCa cells, which can be further elevated by the stimulation of ephrinA5-Fc, implying that the biological function of EphA7 is regulated by its homologous ligand ephrinA5 in PCa.