HDAC6-IN-3 (Compound 14) is a potent anti-prostate cancer agent that acts as an orally active inhibitor of HDAC6. It has IC50 values ranging from 0.02-1.54 μM for HDAC1, HDAC2, HDAC3, HDAC6, HDAC8, and HDAC10. Additionally, HDAC6-IN-3 also demonstrates effective inhibition of MAO-A (IC50 = 0.79 μM) and LSD1 [1].
NMDAR HDAC-IN-1 (Compound 9d) is a potent dual inhibitor of N-methyl-D-aspartate receptors (NMDARs) and histone deacetylases (HDACs). It exhibits a high affinity (Ki = 0.59 μM) for NMDARs, while demonstrating significant inhibitory effects on various HDAC isoforms, including HDAC1, HDAC2, HDAC3, HDAC6, and HDAC8 with IC 50 values of 2.67 μM, 8.00 μM, 2.21 μM, 0.18 μM, and 0.62 μM, respectively. Moreover, NMDAR HDAC-IN-1 efficiently crosses the blood-brain barrier [1].
TubulinHDAC-IN-1 is a compound that functions as a dual inhibitor for tubulin and HDAC-IN-1. It achieves this by interacting with tubulin through CH π interaction and with HDAC8 through hydrogen bond interaction. This compound effectively inhibits tubulin polymerization and selectively targets HDAC8 with an IC50 of 150 nM. Additionally, TubulinHDAC-IN-1 demonstrates cytotoxicity against various human cancer cells, induces cell cycle arrest in the G2 M phase, and triggers cell apoptosis. This compound is valuable for studying hematologic and solid tumors, including neuroblastoma and leukemia [1].
HDAC8-IN-2 (compound 5o) is a potent HDAC8 inhibitor, with IC50 values of 0.27 μM and 0.32 μM for smHDAC8 (Schistosoma mansoni histone deacetylase 8) and hHDAC8, respectively. It effectively kills schistosome larvae and greatly reduces egg laying in adult worm pairs [1].
HDAC6 8 BRPF1-IN-1 is a dual inhibitor that targets HDAC6, HDAC8, and the bromodomain and PHD finger containing protein 1 (BRPF1). It exhibits inhibitory activity against HDAC1, HDAC6, and HDAC8 with IC50 values of 797 nM, 344 nM, and 908 nM, respectively. In addition, it inhibits BRPF1 with a Kd value of 175.2 nM. This compound is utilized in cancer research [1].
HDAC8-IN-3 (compound P19) is a highly potent inhibitor of HDAC8, displaying an IC50 value of 9.3 μM and producing thermal stabilization. Moreover, HDAC8-IN-3 exhibits cytotoxicity and induces apoptosis specifically in leukemic cell lines [1].