Particularly, the mesenchymal subtype consisted of >80% cancer cells that were stained for both YKL-40 and VEGF-A or VEGF B, whereas the proneural subtypes showed >60% (VEGF-A) and <40% (VEGF-B) cancer cells that coexpressed these markers (Figure 5E, blue columns). Here, CHI3L1 is linked to cancer.