AXL and neoplasm: We found that AXL was consistently co-expressed with genes enclosed in the M2-related module (co-expression score=1.013; P=0.013), whereas it showed no relationship with M1-polarized macrophages in TNBC (Supplementary Figure 2b,c and Supplementary Table 5), suggesting that AXL expressed by tumor cells may be involved in the switch towards an M2 phenotype, thus sustaining the pro-tumor activity of TAMs.