Fig. 3. Representation of biologic activity of KDM3B, KDM5A and KDM6A.
KDM3B is responsible for transcriptional activation of tumor suppressor genes through the H3K9me2/1 demethylation. KDM5A/PcG complex can cooperate to induce the silencing of oncogenes. KDM5A interacts directly with RBP-J and modulates Myc activity resulting in a tumor suppressor effect. PcG genes through the H3K27 trimethylation lead to oncogene silencing. KDM6A acts antagonistically to PcG, promoting oncogene activation.