Table 4.

Tumor Growth in HepG2 Cells Over-expressing URG11.

Cell line	Onset of tumor (days)	Student's t-test (tumor onset) (P)	Average size of tumor (cm3)	Student's t-test (tumor size) (P)
HepG2 vector	41 ± 4		0.85 ± 0.3
HepG2-HBx	31 ± 4	< .03	1.5 ± 0.51	<.02
HepG2-URG11	23 ± 3	< .01	1.8 ± 0.55	<.02

The column to the right of “Onset of Tumor” lists the P values calculated from comparisons of HepG2-pcDNA3-HBx or HepG2-pcDNA3-URG11 cells culture to the HepG2 vector controls. The column to the right of “Average Size of Tumor” compares the tumor sizes for each cell line with that of the HepG2 vector cells.