ABCA1 and breast carcinoma: The correlation between KNSTRN and different immune cells is shown in Fig. 4E. KNSTRN expression was significantly and positively correlated with natural regulatory T-cell (nTreg) and induced regulatory T-cell (iTreg) infiltration score, while its expression was significantly and negatively correlated with Tγδ (Tgd), NKT, NK, and CD8-T infiltration score in breast cancer (Fig. 4F).