More than 95% of the samples from GBM (glioblastoma) and LGG (low-grade glioma) showed high infiltration of monocytes and high infiltration of NK and CD8+ T cells was detected in 98% of LAML (Acute Myeloid Leukemia) and 95% of THYM (Thymoma). The gene discussed is CD8A; the disease is central nervous system cancer.