EEF1A2 and Familial prostate cancer: However, the most evident result of our investigation is the dramatic up-regulation of the expression of EEF1A2, but not of EEF1A1, in the prostate cancer lines at the mRNA and protein levels, compared with the non-tumourigenic prostate PZHPV-7 cells (Figures 2A and B, 3B and D; Supplementary material 2).