Figure 5.
Multiple DDR and DNA repair pathway genes targeted by radiation sensitizing miRNAs. (A) Western blot analyses of MAD2L2, WEE1, XPC, KU80, RAD23B, XLF and MCL1 48 h after LNCaP transfection with 20 nM of miR-890 (left) and miR-744–3p (right). Asterisk represents a nonspecific band. ACTB was utilized as a loading reference. (B) Normalized percent protein knock-down (mean ± SE, n = 3) by miR-890 (left) and miR-744–3p (right), relative to control miRNA (from three separate experiments). (C) Luciferase activities following transfection with indicated 3′UTR reporters and miR-890 or control mimetics in 293T cells. (D) Luciferase activities following transfection with indicated 3′UTR reporters and miR-744–3p or control mimetics in 293T cells. Relative luciferase activity (mean ± SE, n =12) is normalized to control miRNA for each reporter. *, P < 0.05 relative to control miRNAs.