Table 1.

Tumor volumes of nude mice at different stages (x̅ ± s)

Groups	Two weeks	Three weeks	Four weeks
	Tumor volume/mm3	Tumor volume/mm3	Tumor volume/mm3
Control group	2.18±0.25	3.44±0.13	4.02±0.31
Robo1 blocking group	0.96±0.23	1.31±0.17	2.06±0.30
Robo4 blocking group	1.01±0.24	2.20±0.52	3.52±0.12

Note: The volumes of the transplantation tumor in Robo1 blocking group and Robo4 blocking group were significantly lower than that of the control group, and the volume of the transplantation tumor in Robo1 closing group was significantly less than that of Robo4 blocking group.