Both immunosuppressive systems (PD‐L1/PD‐1 and Treg infiltration) have previously been shown to predict unfavorable outcome in OC.25, 27, 38 Moreover, RIG‐I levels in ovarian tumors were quite strongly associated with ADAR1 expression, an immune‐silencing factor that may reduce the sensitivity to checkpoint inhibition.33, 39, 40. The gene discussed is ADAR; the disease is ovarian neoplasm.