Clearly, GATA3 was negatively correlated with CTL signature gene (IL2, CD8A, CCL5, GZMA, PRF1, IFNG, PTPRC, GZMM, RAB27A, XCL1, ICOS, TBX21, GZMB, GNLY, and IL12A) in breast cancer (Fig. 1D). Here, TBX21 is linked to breast cancer.