(H) A549 cells expressing control shRNA, WDR63 shRNA#1, or WDR63 shRNA#2 (each also expressing luciferase) were injected via tail vein into nude mice (n=6 for each group). Three weeks after injection, tumor formation was monitored by bioluminescence imaging. Data shown are mean ± SD; *, P ˂ 0.05; One-way ANOVA. 