FN1 and nonpapillary renal cell carcinoma: Genes that were identified as markers of TAM2 in human ccRCC cells, including Fn1 (Fig. 4e,h), F13a1 (Fig. 4e,i) and Gas7 (Fig. 4e) were more highly expressed in Mono-macrophage cluster 2 cells from tumours than from normal kidneys.