THY1 and neoplasm: We identified key cell types including tumor epithelial cells (PANCK+), fibroblasts (CD90+), endothelial cells (CD31+), subsets of immune cells (HLA-DR+ antigen-presenting cells or CD3+ T cells), and their proliferative index (KI67+) with similar proportions of the primary cell types across three patient tumors (Fig. 1c, d).