hdac 9

HDAC-IN-9 is a potent and selective dual inhibitor of tubulin and HDAC, exhibiting inhibitory effects on the invasion and migration of A549 cells, as well as potent anti-tumor and anti-angiogenic activities both in vitro and in vivo.

Valproic acid sodium salt (Sodium Valproate) is the sodium salt form of valproic acid with anti-epileptic activity. Valproic acid sodium salt is converted into its active form, valproate ion, in blood. Although the mechanism of action remains to be elucidated, Valproic acid sodium salt increases concentrations of gamma-aminobutyric acid (GABA) in the brain, probably due to inhibition of the enzymes responsible for the catabolism of GABA. This potentiates the synaptic actions of GABA. Valproic acid sodium salt may also affect potassium channels, thereby creating a direct membrane-stabilizing effect.

Droxinostat (NS 41080) is a selective HDAC inhibitor, primarily targeting HDACs 6 and 8 with IC50 values of 2.47 μM and 1.46 μM, respectively. It is over 8-fold more selective against HDAC3 and shows no inhibition for HDAC1, 2, 4, 5, 7, 9, and 10.

TMP269 is an effective, specific class IIa HDAC inhibitor for HDAC4 (IC50: 157 nM), HDAC5 (IC50: 97 nM), HDAC7 (IC50: 43 nM), and HDAC9 (IC50: 23 nM), respectively.

SW-100 is a selective histone deacetylase 6 inhibitor (IC50: 2.3 nM). It also shows at least 1000-fold selectivity for HDAC6 relative to all other HDAC isozymes. SW-100 displays an obviously improved ability to cross the blood-brain-barrier.

Pracinostat (SB939) is a novel HDAC inhibitor with improved in vivo properties compared to other HDAC inhibitors currently in Clinicalal trials, allowing oral dosing. Data demonstrate that Pracinostat is a potent and effective anti-tumor drug with potential as an oral therapy for a variety of human hematological and solid tumors.

CUDC-101 is a potent inhibitor of HDAC, EGFR, and HER2 with IC50s of 4.4 nM, 2.4 nM, and 15.7 nM, respectively.

TMP195 (TFMO 2) is a selective class IIa histone deacetylase (HDAC) inhibitor.

Domatinostat tosylate (4SC-202) is a selective class I HDAC inhibitor targeting HDAC1 2 3 with IC50 values of 1.20 1.12 0.57 μM, respectively, and also inhibits Lysine-specific demethylase 1 (LSD1).

ACY-957 (HDAC Inhibitor C001) is an orally active and selective inhibitor of HDAC1 and HDAC2 (IC50s: 7 nM, 18 nM, and 1300 nM against HDAC1/2/3) and shows no inhibition on HDAC4/5/6/7/8/9.

Pivanex (Pivalyloxymethyl butyrate) is an orally active HDAC inhibitor and an antimetastatic and antiangiogenic agent. Pivanex downregulates the Bcr-Abl protein and enhances apoptosis.

Panobinostat (NVP-LBH589) is a broad-spectrum HDAC inhibitor (IC50=5 nM) with oral activity and non-selectivity. Panobinostat has antitumor activity and induces apoptosis and autophagy.

CHDI-390576 is a CNS-permeable, selective and potent dibenzoyl isohydroxamic acid class IIa histone deacetylase (HDAC) inhibitor that inhibits class IIa HDAC 4, HDAC 5, HDAC 7, HDAC 9, and can be used in cancer research.

HDAC-IN-76 (compound 6i), a histone deacetylase (HDAC) inhibitor, demonstrates robust antimalarial activity, particularly against the asexual blood stages of Plasmodium. The compound exhibits potent efficacy with IC 50 values of 30 nM and 98 nM against Pf3D7 (chloroquine drug-susceptible strain) and PfDd2 (chloroquine drug-resistant strain), respectively. Moreover, HDAC-IN-76 shows selective inhibition towards parasites, displaying IC 50 values of 7 nM and 9 nM against human HDAC1 and HDAC6, respectively, and effectively inhibits PfHDAC1.

HDAC-IN-88 (Compound HJ-9) is a potent inhibitor of HDAC, effectively targeting HDAC6, HDAC1, HDAC2, HDAC8, and HDAC3 with IC50 values of 0.226, 1.103, 2.308, 3.255, and 3.864 μM, respectively. This compound suppresses the proliferation of cancer cells HepG2, HCT116, and MV4-11 with IC50 values of 5.47, 9.78, and 0.38 μM, respectively. Additionally, it inhibits the migration of HCT116 cells, causes cell cycle arrest at the G0 G1 phase, and induces apoptosis and autophagy in MV4-11 cells. HDAC-IN-88 reduces ROS levels and mitochondrial membrane potential and demonstrates antimalarial activity by inhibiting Plasmodium falciparum 3D7 with an EC50 of 165 nM. Furthermore, HDAC-IN-88 exhibits anti-angiogenic properties.

ROCK HDAC-IN-2 (Compound C-9) is a dual inhibitor of ROCK HDAC, characterized by IC50 values of 0.185 µM for HDAC6, 0.8 µM for ROCK1, and 0.7 µM for ROCK2. It effectively induces apoptosis and mitochondrial membrane potential alterations in cancer cells and demonstrates notable antitumor activity, making it useful for research in pancreatic ductal adenocarcinoma (PDAC) and triple-negative breast cancer (TNBC).

LAQ824 (Dacinostat (NVP-LAQ824)) is a novel HDAC inhibitor with IC50 of 32 nM and is an activator of the p21 promoter.

EDO-S101 (Tinostamustine) is a pan HDAC inhibitor with IC50 values of 9, 9 and 25 nM for HDAC1, HDAC2 and HDAC3 , respectively.

Tucidinostat (Chidamide) is an effective and orally bioavailable HDAC enzymes class I (HDAC1/2/3) and class IIb (HDAC10) inhibitor, with IC50s of 95, 160, 67 and 78 nM, less active on HDAC8/11 (IC50: 733/432 nM), and shows no effect on HDAC4/5/6/7/9.

Quisinostat (JNJ-26481585) (JNJ-26481585) is a novel second-generation HDAC inhibitor with highest potency for HDAC1 with IC50 of 0.11 nM, modest potent to HDACs 2, 4, 10, and 11; greater than 30-fold selectivity against HDACs 3, 5, 8, and 9 and lowest potency to HDACs 6 and 7.

HDAC6-IN-11 (Compound 9) is a selective HDAC6 inhibitor with an IC50 value of 20.7 nM, demonstrating over 300-fold selectivity against other isoforms [1], and exhibits anti-proliferative activities against cancer cells.

Quisinostat dihydrochloride (JNJ26854165(Quisinostat) 2HCl) is a novel second-generation HDAC inhibitor with highest potency for HDAC1 with IC50 of 0.11 nM in a cell-free assay, modest potent to HDACs 2, 4, 10, and 11; greater than 30-fold selectivity against HDACs 3, 5, 8, and 9 and lowest potency to HDACs 6 and 7. Phase 2.

HDAC-IN-53 is an orally active, selective inhibitor of HDAC1-3, with IC50 values of 47 nM, 125 nM, and 450 nM, respectively. It exhibits no inhibitory effects on class II HDACs (HDAC4, 5, 6, 7, 9; IC50 >10 μM). The compound induces caspase-dependent apoptosis and significantly hampers the growth of human tumor xenografts in nude mice and murine tumor growth in immune-competent mice with MC38 colon cancer [1].

HDAC-IN-64 (Compound 13), an HDAC inhibitor, demonstrates potent inhibition of HDAC4 5 6 7 9 with IC50 values of 24, 45, 85, 31, and 37 nM, respectively. It exhibits anti-proliferative and anti-migration effects on prostate cancer (PCA) cells, specifically inhibiting the growth of LNCaP and RWPE-1 cells with GI50 values of 0.32 and 1.1 μM, respectively [1].