Figure 4. KTN1-AS1 competitively bound to miR-23b-3p to up-regulate the expression of HMGB2. (A) DLR assay. (B) Effects of KTN1-AS1 and miR-23b-3p on HMGB2 protein expression. (C) HMGB2 expression in PC tissue. (D) Correlation analysis between HMGB2 and KTN1-AS1. (E) Correlation analysis between HMGB2 and miR-23b-3p. a indicates P < 0.05.