The role of HDAC4 in specific cells (HeLa (cervical cancer), U373 (glioma), OVCAR (ovarian), T98G (glioma), HCT116 (colorectal), NHA (astrocytic) and SKBR3 (breast)) and tissues (cerebral cortex, testis, prostate, and the epidermal layer of the skin) is becoming more clear [9]. This evidence concerns the gene HDAC4 and glioma.