Fig. 4: Expression of markers related with immune escape in PGC-like tumor cells.

a Primary tumors and liver tissues of the mice subcutaneously injected with various tumor cells were stained with the antibody for the indicated protein. b 4T1 and B16-BL6 cultures were stained with the primary antibody against the indicated protein. Scale bar = 20 μm (b), 50 μm (a).