Fig. 6

PARP1 is a direct target of miR-31-5p. (a-d) Hep3B and Huh7 cells were transfected with the miR-31-5p expression plasmid (miR-31-5p) or non-targeting miRNA precursor plasmid (NC). The effect of miR-31-5p up-regulation on PARP1 protein expression was measured by Western blot. Renilla luciferase activity was used as a loading control. **, P < 0.01