Table 1.

The incidence of lung metastasis in nude mouse tumor xenograft. IHC staining was performed with antibody against EGFP using lung tissue sections. Lung metastases were visualized under and counted under microscope, and then the incidence of lung metastasis was calculated. The Chi-Square Test was used for statistical analysis and p<0.05 was considered significant.

Group	Number of mice inoculated	Number of mice with lung metastasis	Lung metastasis incidence (%)	Average number of lung metastases
C8161-con	8	7	87.5 (7/8)**	12.14±3.24
C8161-KD	8	1	12.5 (1/8)**	2 (from 1 lung)

** p<0.01.