CD79A and breast cancer: The initial “B” cluster could be further subdivided into plasma cells (PC), B cells (BC) and plasmacytoid dendritic cells (pDCs), with significant increases in MS4A1+ CD79A+ CD27- B cell and MS4A1-CD79A+ CD27+ plasma cell counts in DAHND (Fig. 2A–F) that could be confirmed in multicolor immunofluorescence stainings in an independent sample set (Fig. 2G, H, Supplementary Data 1).