Box plot comparison of expression of selected genes in prostate cancer vs. benign tissues by real-time quantiative RT-PCR. A: HPN; B: HOXB13; C: BCCIP; D: GADD45A; E: MX1; F;TLR3; G: EPB41L3; H: EPB41L4B; I: FBLN1. Expression values were determined for each sample in duplicate with < 10% variation. They are indicated relative to the reference gene TBP determined in the same fashion. T: cancer samples (n = 47), N: benign tissue samples (n = 13); p-values according to Mann-Whitney tests.