Consistent with the transcriptomic data, B7/H6 appeared to be expressed primarily by ductal epithelial cells (Figure 2G) in both NSCS and pSS salivary glands with and without inflammatory foci. Of note, B7/H6 expression was also found in some mononuclear cells, some of them morphologically identified as plasma cells, previously described only in cervical cancer (35) (Supplementary Figure S1A). Here, CD80 is linked to cervical cancer.