FOXP3 and breast adenocarcinoma: Interestingly, similar to our results, in a different mouse model of breast cancer in which BALB/c mice received a single neonatal administration of BPA and at sexual maturity were injected with syngeneic 4T1 mammary adenocarcinoma cells, BPA exposure resulted in the formation of larger tumors infiltrated by a higher amount of Foxp3+ cells [94].