Tumors escape bodys immune surveillance by
A
Selective overgrowth of antigen negative variants
B
Reduced expression of MHC molecules
C
Secretion of immuno suppressive factors by tumor cells
D
Inhibition of regulatory T cells
E
Inactivation of immuno regulatory pathways
Correct Answer: Selective overgrowth of antigen negative variants, Reduced expression of MHC molecules, Secretion of immuno suppressive factors by tumor cells
