HDAC Inhibitor

CHDI-390576, a potent, cell permeable and CNS penetrant class IIa histone deacetylase (HDAC) inhibitor with IC₅₀s of 54 nM, 60 nM, 31 nM, 50 nM for class IIa HDAC4, HDAC5, HDAC7, HDAC9, respectively, shows >500-fold selectivity over class I HDACs (1, 2, 3) and ~150-fold selectivity over HDAC8 and the class IIb HDAC6 isoform.

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

BRD 4354 is a moderately potent inhibitor of HDAC5 and HDAC9, with IC₅₀s of 0.85 and 1.88 μM, respectively.

Resminostat (RAS2410; 4SC-201) is a potent inhibitor of HDAC1, HDAC3 and HDAC6, with mean IC₅₀ values of 42.5, 50.1, 71.8 nM, respectively, and shows less potent activities against HDAC8, with an IC₅₀ of 877 nM.

SS-208 is a selective HDAC6 inhibitor, with an IC₅₀ of 12 nM. SS-208 possesses anti-tumor activity in melanoma.

Nanatinostat (CHR-3996) is a potent, class I selective and orally active HDAC inhibitor with IC₅₀s of 3 nM, 4 nM, and 7 nM for HDAC1, HDAC2, and HDAC3, respectively. Nanatinostat has low activity against HDAC5 (IC₅₀ of 200 nM) and HDAC6 (IC₅₀ of 2100 nM). Nanatinostat induces apoptosis in myeloma cells. Nanatinostat has potent anticancer effects, such as myeloma, advanced solid tumours and colorectal cancer.

PT3 is a selective inhibitor of HDAC3 with an IC₅₀ value of 0.25 μM. PT3 exhibits good brain penetration ability and bioavailability upon oral administration. PT3 can be used in the research of Alzheimer’s disease.

Carbamazepine (Standard) is the analytical standard of Carbamazepine. This product is intended for research and analytical applications. Carbamazepine is an orally active pressure-sensitive sodium ion channel blocker with an IC₅₀ of 131 μM. Carbamazepine blocks voltage gated Na⁺, Ca²⁺, and K⁺ channels, and is also a HDAC inhibitor (IC₅₀: 2 μM). Carbamazepine is an anticonvulsant and can be used for research of epilepsy and neuropathic pain.

BRD4884 is a potent and brain-penetrant HDAC inhibitor with IC₅₀ values of 29 nM, 62 nM, and 1090 nM for HDAC1, HDAC2, and HDAC3, respectively. BRD4884 can be used for the study of cognitive impairment.

KA2507 is a potent, orally active and selective HDAC6 inhibitor, with an IC₅₀ of 2.5 nM. KA2507 shows antitumor activities and immune modulatory effects in preclinical models.

HDAC3-IN-T247 is a potent and selective HDAC3 (histone deacetylase 3) inhibitor, with an IC₅₀ of 0.24 µM. HDAC3-IN-T247 induces a selective increase of NF-κB acetylation in HCT116 cells. HDAC3-IN-T247 shows anticancer and antiviral activity. HDAC3-IN-T247 inhibits growth of cancer cells, and activates HIV gene expression in latent HIV-infected cells.

SE-7552, a 2-(difluoromethyl)-1,3,4-oxadiazole (DFMO) derivative, is an orally active, highly selective, non-hydroxamate HDAC6 inhibitor with an IC₅₀ of 33 nM. SE-7552 is greater than 850-fold selectivity versus all other known HDAC isozymes. SE-7552 is capable of blocking multiple myeloma growth in vivo. SE-7552 acts as an anti-obesity agent in diet-induced obese mice.

Valproic acid (Dipropylacetic Acid) (Standard) is an analytical standard for valproic acid. This product is intended for research and analytical applications. Valproic acid is an orally active HDAC inhibitor (IC₅₀=0.5-2 mM), inhibits the activity of HDAC1 (IC₅₀=400 μM), and induces the degradation of HDAC2. Valproic acid activates Notch1 signaling and inhibits the proliferation of small cell lung cancer (SCLC) cells. Valproic acid is used in the study of epilepsy, bipolar disorder, metabolic diseases, HIV infection, and migraine.

GSK3117391 (ESM-HDAC391; CHR-5154; HDAC-IN-3) is an orally active HDAC inhibitor with a IC₅₀ of 55 nM. Using esterase-sensitive motif technology, GSK3117391 is selectively converted into its active acid metabolite HDAC189 in cells expressing carboxylesterase-1. GSK3117391 induces sustained global protein acetylation in monocytes, inhibits the production of proinflammatory cytokines, depletes circulating monocytes, downregulates the expression of CSF1R, and inhibits monocyte adhesion and differentiation. GSK3117391 can be used in the research of chronic inflammatory diseases.

HDAC9-IN-1 is a selective class IIa HDAC inhibitor that binds to HDAC9 with an IC₅₀ of 40 nM. HDAC9-IN-1 potently inhibits HDACs 4 and 7 while showing weak activity against HDAC6 (IC₅₀ values: 180 nM (HDAC4), 190 nM (HDAC7), 970 nM (HDAC6)). HDAC9-IN-1 significantly inhibits several human cancer cells, induces apoptosis and DNA damage in human cancer cells, and modulates caspase-related proteins and p38 in human cancer cells. HDAC9-IN-1 can be used for the research of oral cancer, breast cancer, gastric cancer.

Pinocembrin 7-O-[3''-O-galloyl-4'',6''-hexahydroxydiphenoyl]-β-D-glucoside is a TRPV1 antagonist and HDAC7 inhibitor. Pinocembrin 7-O-[3''-O-galloyl-4'',6''-hexahydroxydiphenoyl]-β-D-glucoside blocks TRPV1-mediated calcium influx, suppresses phosphorylation of p65, IκBα, p38, JNK, and ERK1/2, inhibiting NF-κB and MAPK signaling cascades. Pinocembrin 7-O-[3''-O-galloyl-4'',6''-hexahydroxydiphenoyl]-β-D-glucoside reduces production and gene expression of pro-inflammatory cytokines IL-1β, IL-6, and TNF-α. Pinocembrin 7-O-[3''-O-galloyl-4'',6''-hexahydroxydiphenoyl]-β-D-glucoside exhibits potent analgesic activity, elevates thermal pain threshold and mechanical pain threshold in murine models. Pinocembrin 7-O-[3''-O-galloyl-4'',6''-hexahydroxydiphenoyl]-β-D-glucoside restores CD8⁺ T cell infiltration into bladder cancer tumors and improves bladder cancer immunotherapy efficacy. Pinocembrin 7-O-[3''-O-galloyl-4'',6''-hexahydroxydiphenoyl]-β-D-glucoside can be used for the researches of painand bladder cancer.

Pimelic Diphenylamide 106 (TC-H 106) is a slow, tight binding class I HDAC inhibitor (inhibits HDAC1, 2, and 3 with IC₅₀ values of 150 nM, 760 nM, and 370 nM, respectively), with no activity against class II HDACs. Pimelic Diphenylamide 106 modulates dopamine concentration and protects dopamine cells by inducing VMAT2 expression. Pimelic Diphenylamide 106 can be used in the study of neuropsychiatric diseases such as attention deficit hyperactivity disorder (ADHD).

LSD1/HDAC6-IN-2 (JBI-802) is an orally active LSD1/HDAC6/MAO-A inhibitor, with IC₅₀ values of 5 nM, 11 nM, and 5 nM, respectively. LSD1/HDAC6-IN-2 can inhibit the growth of multiple myeloma cells MM.1S, MM.1R, and RPMI-8226. LSD1/HDAC6-IN-2 can be used for research on diseases such as acute myeloid leukemia and lymphoma.

HDACs/mTOR Inhibitor 1 is a dual HDACs and mTOR inhibitor, with IC₅₀s of 0.19 nM, 1.8 nM, 1.2 nM for HDAC1, HDAC6, mTOR, respectively. HDACs/mTOR Inhibitor 1 stimulates cell cycle arrest in G0/G1 phase and induces tumor cell apoptosis with low toxicity in vivo. HDACs/mTOR Inhibitor 1 can be used in the research of hematologic malignancies.

PH14 is a PI3Kα/HDAC3 inhibitor, with an IC₅₀ value of 20.3 nM against PI3Kα and 24.5 nM against HDAC3. PH14 blocks the phosphorylation of AKT, inhibits the PI3K/AKT signaling pathway, increases the level of acetylated histone H3, promotes apoptosis, and exerts antiproliferative activity against tumor cells. PH14 can be used in the research of mantle cell lymphoma, myeloma, acute promyelocytic leukemia, and breast cancer.