Effects of Ad/shBcl-xL on the proferation and colony formation of CRC cells. A. The proliferation of LoVo cells was measured by MTT assay. The cell proliferation of LoVo infected with Ad/shBcl-xL was significantly inhibited in a time-dependent manner. B. The colony number was counted in three different wells at 14 days after seeded, and the averaged number was plotted. The experiments were repeated thrice and similar results were obtained. Representative data are shown. Each assay was performed at least in triplicate. *P < 0.05 vs mock.