UCA1 and neoplasm: Moreover, the average tumor weight at the end of the experiment was significantly lower in the UCA1 silenced group (0.46 ± 0.12 g) compared to the blank group (0.84 ± 0.17g) and the empty vector group (0.88 ± 0.35g), (P < 0.05; Figure 11C and 11D).