UCA1 and central nervous system cancer: Importantly, RIP analysis indicated that both miR‐1 and miR‐203a levels were enriched in RNA pulled down by ago2 in glioma cells transfected with Luc‐UCA1‐wt, but not in cells with Luc‐UCA1‐mut‐1 or Luc‐UCA1‐mut‐203a transfection (Fig. 4E,F).