title: The starfish axial organ: an ancestral lymphoid organ.
mesh_terms: D000371:Agglutination; D001402:B-Lymphocytes; D002196:Capillaries; D003208:Concanavalin A / Q000494:pharmacology; D006084:Graft Rejection; D007111:Immunity, Cellular; D037102:Lectins / Q000494:pharmacology; D008070:Lipopolysaccharides / Q000494:pharmacology; D008214:Lymphocytes / Q000276:immunology; D008221:Lymphoid Tissue / Q000033:anatomy & histology / Q000166:cytology / Q000276:immunology*; D011043:Pokeweed Mitogens / Q000494:pharmacology; D012867:Skin / Q000098:blood supply; D016038:Skin Transplantation; D013163:Splenomegaly / Q000276:immunology; D013215:Starfish / Q000276:immunology*
chemical_list: D037102:Lectins; D008070:Lipopolysaccharides; D011043:Pokeweed Mitogens; D003208:Concanavalin A