Table 1.

Characteristics of mice

PyMT mice genotype	Primary tumor incidence	Mean age in week to first palpable tumor	Metastatic tumor incidence
KO	100%	9.35± 0.7* a	82%* a
WT	100%	11.86 ± 0.1	62.5%
WT/Tg	100%	12.89± 0.26	33.3%*
KO/Tg	92.3%	13.64± 0.3*	36.4%*

n=13-16, significance at

^*p≤0.05 vs WT group

^avs all other groups, one way ANOVA.