Consistent with the analyses in TCGA datasets, we found a similar positive correlation of NK cell and cDC1 gene signatures in an independent cohort of breast cancer patients (Figures S7A and S7B) in which cancers were further classified into clinical groups, including the triple-negative breast cancer subtype (TNBC) that has poor prognosis. This evidence concerns the gene MPPE1 and triple-negative breast carcinoma.