splenic macrophages did not appear to be implicated in blocking antitumor immunity induction since ( a ) suppressor macrophages were absent in spleens during the inductive phase of the immune response and ( b ) mac implanted in allogenic wistar rats grew to about 2 cm diameter , induced splenic suppressor macrophages but the tumor was later rejected by the animals .
C0020964
immunity
C0301872
immune response