Histologic evaluation of T-cell accumulation in 4T1 tumors.

<p>4T1 tumor bearing mice were injected with activated T-cells and the tumor sections were stained for CD69 activated T-cells (red color) marker and F4/80 macrophage (green color) marker (Figures-A & B). Images of 4T1 tumor sections obtained from mouse bearing 4T1 tumor but not injected with activated T cells, stained for CD69 and F4/80 markers (Figures-C & D).