Fig. 6From: Preparation of chitosan nanoparticle containing recombinant CD44v antigen and evaluation of its immunization capacity against breast cancer in BALB/c miceHistopathological observations of immunized mice organs (lung, liver, and sternum) and tumor tissues. Mice were immunized with PBS or rCD44v, Mice control (two groups), and Mice test (four groups). Tissue Sect. (3 μm) were stained with H&E and necrosis and metastases were examined by light microscopy. (40 × magnification and scale bar of 50 μm)Back to article page