In the case for breast cancer (BRCA), a good prognosis of a higher tumor infiltration by cDC1 has been documented independently by 4 studies (55, 65, 66, 182), altogether interrogating three patient cohorts [TCGA, METABRIC, and the meta-cohort generated by Györffy et al. (183)]. This evidence concerns the gene MPPE1 and breast carcinoma.