CCR9 and sarcoma: Lastly, we characterized the sarcoma-infiltrating myeloid and dendritic cell types (markers in Supplementary Data 6), which included granulocytes (S100a8, Csf3r), dendritic cells (monocyte-derived Cd209a/Ccr7, or plasmacytoid Ccr9/Siglech), and monocytes/macrophages.