Sulforaphane is an isothiocyanate present naturally in widely consumed vegetables; has shown anticancer and cardioprotective activities.
Crebinostat is a potent histone deacetylase (HDAC) inhibitor with IC50 values of 0.7 nM, 1.0 nM, 2.0 nM and 9.3 nM for HDAC1, HDAC2, HDAC3 and HDAC6, respectively. Crebinostat potently induces acetylation of both histone H3 and histone H4 as well as enhances the expression of the cAMP response element-binding protein (CREB) target gene Egr1. Crebinostat increases the density of synapsin-1 punctae along dendrites in cultured neurons. Crebinostat can modulate chromatin-mediated neuroplasticity and exhibits enhanced memory in mice[1].
HC-Toxin, a cyclic tetrapeptide, is a potent HDAC inhibitor with an IC50 of 30 nM[1]. HC-Toxin induces tumor cell apoptosis and has anticancer effects[2].
Tubacin is a potent and selective inhibitor of HDAC6, with an IC50 value of 4 nM and approximately 350-fold selectivity over HDAC1.
HDAC6-IN-4 (C10) is a potent, orally active and highly selective HDAC6 inhibitor with an IC50 value of 23 nM. HDAC6-IN-4 induces cancer cells apoptosis and shows significant antitumor efficacy, without obvious toxicity[1].
Valproic acid (VPA) sodium (2:1) is an orally active HDAC inhibitor, with IC50 in the range of 0.5 and 2 mM, also inhibits HDAC1 (IC50, 400 μM), and induces proteasomal degradation of HDAC2. Valproic acid sodium (2:1) activates Notch1 signaling and inhibits proliferation in small cell lung cancer (SCLC) cells. Valproic acid sodium (2:1) is used in the treatment of epilepsy, bipolar disorder, metabolic disease, HIV infection and prevention of migraine headaches[1][2][3][4][5][6][7].
Homobutein a natural chalcones (can be found in many medicinal plants, fruits, vegetables, spices and nuts), is a potent HDACs/NF-κB dual inhibitor with IC50s of 190 and 38 μM, respectively. Homobutein also a chelator of iron (II and III) cations, shows various activities, including anticancer, anti-inflammatory, antiparasite and antioxidation[1][2][3][4].
HDAC-IN-52 is a pyridine-containing HDAC inhibitor, with IC50s of 0.189, 0.227, 0.440 and 0.446 μM for HDAC1, HDAC2, HDAC3, and HDAC10, respectively. HDAC-IN-52 can be used for the research of cancer[1].
J1038 is a novel Inhibitor of Histone Deacetylase 8 (HDAC8).
Apicidin (OSI 2040) is a fungal metabolite, acts as a histone deacetylase (HDAC) inhibitor, with antiparasitic activity and a broad spectrum antiproliferative activity[1].
HDAC-IN-40 is a potent alkoxyamide-based HDAC inhibitor with Ki values of 60 nM and 30 nM for HDAC2 and HDAC6, respectively. HDAC-IN-40 had antitumor effects[1].
Chlamydocin, a fungal metabolite, is a highly potent HDAC inhibitor, with an IC50 of 1.3 nM. Chlamydocin exhibits potent antiproliferative and anticancer activities. Chlamydocin induces apoptosis by activating caspase-3[1].
HDAC-IN-36 (compound 23 g) is an orally active and potent HDAC (histone deacetylase) inhibitor, with an IC50 of 11.68 nM (HDAC6). HDAC-IN-36 promotes apoptosis, autophagy and suppresses migration. HDAC-IN-36 shows anti-tumor and anti-metastatic activity, and can be used for breast cancer research[1].
HDAC/JAK/BRD4-IN-1(compound 25ap) is a potent HDAC/JAK/BRD4 triple inhibitor. HDAC/JAK/BRD4-IN-1 inhibit cell growth and induces apoptosis in MDA-MB-231 cells, and shows anticancer activity in vivo[1].
Nampt-IN-3 (Compound 35) simultaneously inhibit nicotinamide phosphoribosyltransferase (NAMPT) and HDAC with IC50s of 31 nM and 55 nM, respectively. Nampt-IN-3 effectively induces cell apoptosis and autophagy and ultimately leads to cell death[1].
HDAC1/2-IN-3 is a HDAC1 and HDAC2 inhibitor with IC50 values 0-5 and 5-10 nM, respectively.
HDAC-IN-26 is a highly selective class I HDAC inhibitor with an EC50 value of 4.7 nM.
Gnetol is a phenolic compound isolated from the root of Gnetum ula Brongn. Gnetol potently inhibits COX-1 (IC50 of 0.78 μM) and HDAC. Gnetol is a potent tyrosinase inhibitor with an IC50 of 4.5 μM for murine tyrosinase and suppresses melanin biosynthesis. Gnetol has antioxidant, antiproliferative, anticancer and hepatoprotective activity. Gnetol also possesses concentration-dependent α-Amylase, α-glucosidase, and adipogenesis activities[1][2][3].
HDAC6/HSP90-IN-1 (compound 17) is a potent and selective dual inhibitor of HDAC6 and HSP90, with IC50 values of 4.3 and 46.8 nM, respectively. HDAC6/HSP90-IN-1 down-regulates PD-L1 expression in INF-γ treated H1975 lung cancer cells. HDAC6/HSP90-IN-1 inhibits tumor growth in human H1975 xenograft mice[1].
ITF3756 is a selective histone deacetylase 6 (HDAC6) inhibitor bearing a pentaheterocyclic scaffold.
FT895 is a potent and selective HDAC11 inhibitor with an IC50 of 3 nM.
HDAC6-IN-5 (compound 11b) is a potent and BBB-penetrated HDAC6 inhibitor, with an IC50 of 0.025 μM. HDAC6-IN-5 exhibits strong inhibitory activity against Aβ1-42 self-aggregation and AChE, with IC50 values of 3.0 and 0.72 μM. HDAC6-IN-5 can enhance neurite outgrowth without significant neurotoxicity[1].
LW479, a novel HDAC inhibitor, could be a candidate drug for breast cancer prevention.
YF479, a novel HDAC inhibitor, displays more potent anti-tumor activity in vitro and in vivo compared with hydroxamic acid (SAHA).
RGFP966 is a highly selective HDAC3 inhibitor with an IC50 of 80 nM and shows no inhibition to other HDACs at concentrations up to 15 μM.
HDAC1/MAO-B-IN-1 is a potent, selective and cross the blood-brain barrier HDAC1/MAO-B inhibitor with IC50 values of 21.4 nM and 99.0 nM for HDAC1 and MAO-B, respectively. HDAC1/MAO-B-IN-1 has the potential for the research of Alzheimer’s disease[1].
PI3K/HDAC-IN-2 is a potent dual PI3K/HDAC inhibitor with IC50s of 226 nM, 279 nM, 467 nM, 29 nM for PI3Kα, PI3Kβ, PI3Kγ, PI3Kδ, respectively, and IC50s of 1.3 nM, 3.4 nM, 972 nM, 17 nM, 12 nM for HDAC1, HDAC2, HDC4, HDAC6, HDAC8, respectively. PI3K/HDAC-IN-2 exhibits PI3Kδ and class I and IIb HDAC selectivity. PI3K/HDAC-IN-2 has remarkable anticancer effects[1].
Trichostatin A is a potent and specific inhibitor of HDAC class I/II, with an IC50 value of 1.8 nM for HDAC.
SS-208 is a selective HDAC6 inhibitor, with an IC50 of 12 nM. SS-208 possesses anti-tumor activity in melanoma[1].
MPI_5a is a potent and selective HDAC6 inhibitor (IC50=36 nM). MPI_5a weakly inhibits other HDAC isoforms. MPI_5a inhibits acyl-tubulin accumulation in cells with an IC50 value of 210 nM[1].