HER-2-E0771 mammary tumour cells (2x105) were injected into the fourth inguinal mammary fat pads of female HER-2 TG mice. Six days after tumour injection HER-2 TG mice received total body irradiation (4 Gy) followed by the adoptive transfer of 6x106 FACS-purified CD8+CD62LhiCD44hi central memory HER-2 CAR-T cells generated from Ptpn2fl/fl versus Lck-Cre;Ptpn2fl/fl splenocytes. Mice were injected with IL-2 (50,000 IU/day) on days 0-4 after adoptive CAR-T cell transfer. Cxcl9 and Cxcl10 mRNA levels in HER-2-E0771 tumours were assessed by quantitative real time PCR. 