As T cell cytotoxicity indicators, interferon gamma (IFNγ),[35] and cytolytic granule enzyme Granzyme B (GZMB) had greater expression levels in the CD8 T cells of the tumor organoids when they were treated with ITF2357, I‐BET151, or JQ1 (Figure 4D and Figure S3E,F, Supporting Information). The gene discussed is CD8A; the disease is neoplasm.