KCNQ1OT1 and posterior cortical atrophy: A functional significance of the lncRNA KCNQ1OT1/miR-211-5p/CHI3L1 axis has been demonstrated in two PCa cell lines, DU145 and LNCaP: lncRNA KCNQ1OT1 sponged miR-211-5p with subsequent upregulation of chitinase-3-like-1 (CHI3L1), and the promotion of malignant progression of PCa.