SATB1 and cancer: The other two HLA-A*02+ SATB1 expressing cancer cell lines (CAMA-1, MDA-MB-231) could only be recognized when they were pre-treated with IFN-γ (Figure 4B), suggesting that either enhanced HLA-A*02 expression on the cell surfaces (Figure S2) or induction of immunoproteasomes by IFN-γ, may facilitate the presentation of the correct epitope to cell surfaces for T cell scrutiny.