Fig. 3. (A) Intracellular delivery of miR-34a and analysis of Fra-1 expression. (A) miR-34a level was detected by RT-PCR. (B) Fra-1 expression was quantitatively measured by RT-PCR. Data were presented as means ± S.D (n = 3), **p < 0.01. (C) Fra-1 expression was analyzed by western blot.