To examine the effects of TSPX in prostatic cancer cells, the LNCaP cells were transduced with the tet-ON lentiviral vector system expressing EGFP and TSPX variants, i.e. TSPX[FL] with a longest N-terminal region or TSPX with a shorter N-terminal region (Δ26-108aa), under the control of doxycycline (Dox) (Figure 2B, 2C). This evidence concerns the gene TSPYL2 and Familial prostate cancer.