Table 1.

Metastatic nodes in internal organs

Experimental groups	No. of mice in group	No. of mice with metastases in internal organs	No. of mice with metastases in liver	No. of mice with metastases in spleen	No. of mice with metastases in kidney
PBS	9	9	6	7	3
OncSyn	7	4	2	2	0
OncdSyn	7	3	1	2	0

Experimental animals were sacrificed on day 42 post-injection of 4T1 cells and the internal organs were removed and examined for metastases formation by gross pathological evaluation as described in Materials and Methods.