hdac8

HDAC8-IN-20a (HDAC8 inhibitor-20a) is a potent and selective HDAC8 inhibitor with an IC50 of 27 nM. HDAC8-IN-20a blocks activation of growth receptor survival signals.

Vorinostat (SAHA) is a pan-histone deacetylase (HDAC) inhibitor (IC50=10 nM) with inhibitory activity against HDAC1 2 3 6 7 11. Vorinostat has antitumor activity, induces cell differentiation, blocks the cell cycle and induces apoptosis.

HDAC-IN-7, an analogue of Tucidinostat (Chidamide), is a HDAC inhibitor. HDAC-IN-7 inhibits acetylation of histone protein H3 and induces apoptosis in human colon cancer cell lines[1].

Tubastatin A Hydrochloride (TSA HCl) is an effective and specific HDAC6 inhibitor (IC50: 15 nM). It has selectivity (>1000-fold) against all other isozymes except HDAC8 (>57-fold).

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.

Ricolinostat (Rocilinostat) is an orally bioavailable, specific inhibitor of histone deacetylase 6 (HDAC6) with potential antineoplastic activity.

KA2507 is a potent and selective HDAC6 inibitor with an IC50 of 2.5nM.

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.

PCI-34051 is an effective and selective HDAC8 inhibitor (IC50: 10 nM).

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.

ACY-241, also known as Citarinostat (ACY241), is a potent, selective and orally available histone deacetylase (HDAC) inhibitor, with potential antineoplastic activity. Upon oral administration, ACY-241 inhibits the activity of HDACs; this results in an accumulation of highly acetylated chromatin histones, the induction of chromatin remodeling and an altered pattern of gene expression. This leads to the inhibition of tumor oncogene transcription, and the selective transcription of tumor suppressor genes, which inhibit tumor cell division and induce tumor cell apoptosis.

BRD73954, an effective and specific HDAC inhibitor, which is with IC50 of 36 nM and 120 nM for HDAC6 and HDAC8, respectively.

HPOB is an effective and specific HDAC6 inhibitor (IC50: 56 nM), >30-fold selectivity over other HDACs.

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.

CRA-026440(PCI-34051) is a highly potent HDAC inhibitor with inhibitory effects on HDAC1, HDAC2, HDAC3, HDAC6, HDAC8 and HDAC10 with Ki values of 4,14,11,15,7 and 20 nM, respectively. CRA-026440 has anti-tumor and anti-angiogenic activity and can be used to study colon cancer.

HDAC-IN-57 is an orally active pan-inhibitor of histone deacetylase (HDAC), inhibiting HDAC1, HDAC2, HDAC6, and HDAC8 with IC50 values of 2.07 nM, 4.71 nM, 2.4 nM, and 107 nM, respectively. HDAC-IN-57 inhibits LSD1 with an IC50 value of 1.34 μΜ. HDAC-IN-57 has anti-tumor activity and can induce apoptosis.

HDAC8-IN-3 (compound P19) is a highly potent HDAC8 inhibitor with an IC50 value of 9.3 μM, inducing thermal stabilization, cytotoxicity, and apoptosis specifically in leukemic cell lines [1].

HDAC8-IN-12 (compound 5k), a non-hydroxamic acid derivative, serves as a selective HDAC8 inhibitor with an IC 50 of 0.12 nM and demonstrates potent efficacy against breast cancer. This compound enhances anti-tumor immunity by activating T cells, elevating M1 macrophage levels, and reducing M2 macrophage proportions. In an orthotopic mouse model of breast cancer, HDAC8-IN-12, administered at 50 mg kg, effectively suppresses tumor growth.

HDAC8-IN-10 (compound 15) serves as a potent inhibitor of HDAC8, exhibiting an IC50 value of 7.6 nM. It also acts as a ligand for the HDAC8 target protein, utilized in the synthesis of PROTAC YX862.

MDK-7933 (HDAC8-IN-1) is a HDAC8 inhibitor with an IC50 of 27.2 nM in cancer cell lines. MDK-7933 shows antiproliferative effects toward several human lung cancer cell lines (A549, H1299, and CL1-5). HDAC8-IN-1 exhibits cytotoxicity against human lung CL1-5 cells without significant cytotoxicity for normal IMR-90 cells[1].

PROTAC HDAC8 Degrader-1 is a potent and selective PROTAC degrader targeting HDAC8, exhibiting a DC50 of 0.27 nM in A549 cells.

PROTAC HDAC8 Degrader-2 (compound 32a) acts as a degrader for HDAC8 with a DC50 of 8.9 nM and for HDAC6 with a DC50 of 14.3 nM. This compound is composed of a PROTAC target protein ligand HDAC8 ligand 1, an E3 ligase ligand thalidomide-4-OH, and PROTAC Linker 1,5-diaminopentane. The complex includes an E3 ubiquitin ligase ligand linked with the linker, specifically thalidomide-NH-C5-NH2.

HDAC8-IN-5 (Compound 6a), with an inhibitory concentration (IC50) of 28 nM, is a potent HDAC8 inhibitor suitable for cancer research [1].

HDAC8 BRPF1-IN-1 (Compound 23a) is a dual inhibitor targeting human HDAC8 (IC50: 443 nM) and human BRPF1 (Kd: 67 nM), with low in vitro activity against HDAC1 and HDAC6.