Both TH1 and Tfh were associated with better prognosis in ER‐positive cancer, but not in TNBC.57 Iglesia et al showed that B‐cell gene expression signature was associated with better DFS for basal‐like and HER‐2 enriched cancers,60 which was comparable with our results that B cell naive was a good indicator for DFS. This evidence concerns the gene ERBB2 and cancer.