KMT2C (Lysine methyltransferase 2 C), a gene responsible for tumor suppression in various myeloid and epithelial cells, is associated with hematologic and solid tumors (e.g., head, neck, breast, esophageal, lung, endometrial, bladder, and brain cancers) and is also responsible for affecting the inhibition of cell growth [13–15]. Here, KMT2C is linked to brain cancer.