Fig. 4From: Aluminum nanoparticles enhance anticancer immune response induced by tumor cell vaccineHistological slides of the tumor tissues stained with hematoxylin and eosin. a Control group. b TCV group. c TCV + alum group. d TCV + nano-alum group. Lymphocyte infiltrations were found in all the treatment groups (b, c, d, arrowheads). Tumor necrosis was observed in the TCV + nano-alum group (d, straight arrow)Back to article page