HDAC9 and colorectal carcinoma: CMap mode of action (MoA) for 67 drugs tested in CRC cell lines revealed 38 mechanisms of action shared by the above compounds shown in Fig. S1B. 9 compounds shared the MoA of HDAC inhibitor, 5 compounds shared the MoA of acetylcholine receptor antagonist, 4 compounds shared the MoA as dopamine receptor antagonist, 4 compounds shared the MoA as topoisomerase inhibitor, and 4 compounds shared the MoA as histamine receptor antagonist.