KLK14 and posterior cortical atrophy: To identify the target substrates of KLK14 in PCa cells, we compared the secretome composition of iKLK14‐ and imKLK14‐LNCaP cells using the terminal amine isobaric‐tag labeling of substrates (TAILS) proteomic technique (Kleifeld et al., 2011; Munasinghage Silva et al., 2019).