Among integrin (ITG) family genes, ITGA11 alone exhibited the most highly stroma-specific feature (SE = 16.4) (Figure 1a) as compared to other ITG family genes such as ITGB1 (SE = 3.0), ITGAV (SE = 4.8), and ITGB5 (SE = 2.7) (Figure 1c), although ITGB1 and ITGAV had much more abundant expression amounts than ITGA11 in cancer stroma. This evidence concerns the gene ITGAV and cancer.