EGFR, a transmembrane receptor tyrosine kinase enriched in the classical subtype, and p27, a kinase inhibitory protein linked to inhibition of GBM growth, invasion, and neoangiogenesis, were found to play no role in the immune response in all five LTS in a 2005 study that looked for clinicopathological and expression data linked with more than five‐year survival.121, 141, 142, 143. Here, EGFR is linked to glioblastoma.