Fig. 2. STC2 overexpression promotes HCC cell proliferation and colony formation. (A) Exogenous STC2 was expressed in YY-8103 cells transfected with the pcDNA3.1-STC2. Parallel cells transfected with empty vector were used as a control. (B) STC2 overexpression promoted cell proliferation of YY-8103 cells. (C) Ectopic STC2 expression enhanced the colony formation ability of YY-8103 cells. The histogram represents the mean colony number of 3 independent experiments (mean ± SD). *P ＜ 0.05 and **P ＜ 0.01.