HOXA7 and prostate cancer: The ability of the N‐Ter‐Antp, Antp‐LP4, D‐Antp‐LP4, and Tf‐LP4 peptides to induce cell death and discriminate between cancer and noncancer cells was studied with the PC‐3 and DU‐145 prostate cancer cell lines and the noncancerous prostate epithelium PWR‐1E and T‐Rex‐293 cell lines (Fig. 2).