Based on the TCGA and CGGA datasets, we proved that PTX3 positively correlated with CD276, CD274, PDCDL1LG2, HAVCR2, CD80, IDO1, and PDCD1 in pan‐glioma, GBM, and LGG (Figure S8E,F). The gene discussed is HAVCR2; the disease is central nervous system cancer.