CD80 and cancer: We identified T cells (CD2 and CD3D), fibroblasts (MMP2 and ACTA2), macrophages (CD14 and FCGR2A), dendritic cells (CD83 and CD80), mast cells (CMA1 and MS4A2), endothelial cells (PECAM1 and VWF), B/plasma cells (BLNK and SLAMF7), myocytes (ACTA1 and MYL2) and epithelial/cancer cells (EPCAM and KRT14) (Figures 8A and S9).