Histone Acetyltransferase Inhibitor

A-485, a chemical probe, is a potent and selective catalytic inhibitor of p300/CBP with IC₅₀s of 9.8 nM and 2.6 nM for p300 and CBP histone acetyltransferase (HAT), respectively.

Curcumin (Diferuloylmethane), a natural phenolic compound, is a p300/CREB-binding protein-specific inhibitor of acetyltransferase, represses the acetylation of histone/nonhistone proteins and histone acetyltransferase-dependent chromatin transcription. Curcumin is a photosensitizer against microorganisms. Curcumin shows inhibitory effects on NF-κB and MAPKs, and has diverse pharmacologic effects including anti-inflammatory, antioxidant, antiproliferative and antiangiogenic activities. Curcumin induces stabilization of Nrf2 protein through Keap1 cysteine modification.

C646 is a selective and competitive histone acetyltransferase p300 inhibitor with K_i of 400 nM, and is less potent for other acetyltransferases.

OP-3136 is an orally active, highly selective inhibitor of KAT6A and KAT6B. OP-3136 inhibits the proliferation of prostate cancer, ovarian cancer and non-small cell lung cancer cells that express or overexpress KAT6A. OP-3136 reduces the proliferative capacity of cancer cells and suppresses cell growth in ER⁺ breast cancer cell models with KAT6 overexpression. OP-3136 induces tumor regression and inhibits tumor growth in an ovarian cancer xenograft model in immunodeficient mice. OP-3136 inhibits tumor growth in a non-small cell lung cancer xenograft model in immunodeficient mice. OP-3136 can be used in research related to HR⁺/HER^2- breast cancer, prostate cancer, ovarian cancer and non-small cell lung cancer (NSCLC).

Snail IN-1 is an orally active Snail inhibitor with a Ka of 0.36 μM.Snail IN-1 disrupts Snail-CBP interaction, accelerates Snail protein degradation, reduces Snail acetylation, increases Snail polyubiquitination, and selectively downregulates Snail protein without altering other EMT transcription factors.Snail IN-1 reduces atherosclerotic plaque burden, modulates inflammation and plaque stability factors, downregulates CCL5, CXCL10, MMP2, and MMP9, and upregulates α-smooth muscle actin.Snail IN-1 exerts anti-inflammatory and plaque-stabilizing properties.Snail IN-1 can be used for the research of atherosclerosis.

JYZ3032 is an orally active super inhibitor of androgen receptor (AR) and p300/CBP. JYZ3032 redirects the catalytic activity of p300 and locks the complex in a transcriptionally inactive state, thereby inhibiting AR-driven transcription and proliferation. JYZ3032 induces deep and durable tumor regression in castration-resistant and patient-derived xenograft models, and exhibits good tolerability. JYZ3032 can be used in research related to metastatic castration-resistant prostate cancer and prostate cancer.

WM-3835 is a potent and high-specific HBO1 (KAT7 or MYST2) inhibitor and binds directly to the acetyl-CoA binding site of HBO1. WM-3835 activates apoptosis while inhibits osteosarcoma (OS) cell proliferation, migration and invasion. WM-3835 has antitumor activity and potently inhibits pOS-1 xenograft growth in mice.

Remodelin is an orally active and selective inhibitor of acetyltransferase NAT10. Remodelin inhibits NAT10 activitity and slows DNA replication and suppresses growth of prostate cancer cells. Remodelin inhibits the growth of prostate cancer and hepatocellular carcinoma in xenograft model. Remodelin enhances the healthspan in hutchinson-gilford progeria syndrome (HGPS) mouse model.

SGC-CBP30, a chemical probe, is a potent and highly selective CBP/p300 bromodomain (K_ds of 21 nM and 32 nM for CBP and p300, respectively) inhibitor, displaying 40-fold selectivity over the first bromodomain of BRD4 [BRD4(1)] bound. SGC-CBP30 strongly reduces secretion of IL-17A in Th17 cells and has anti-inflammatory effects.

PF-9363 (CTx-648) is a first-in-class potent and high selective KAT6A/KAT6B inhibitor. PF-9363 can be used for the research of cancer.

MG149 (Tip60 HAT inhibitor) is a selective and potent Tip60 inhibitor with IC₅₀ of 74 uM, similar potentcy for MOF (IC₅₀ = 47 uM); little potent for PCAF and p300 (IC₅₀ >200 uM). MG 149 inhibits KAT8 and blocks PINK1 kinase activity. MG149 inhibits the phosphorylation of Parkin and ubiquitin, thereby suppressing the initiation of PINK1-dependent mitophagy. MG 149 can reverse chronic restraint stress (CRS) induced hypertension and related molecular changes. MG 149 commonly used in research on diseases such as hypertension and Parkinson's disease.

Butyrolactone 3 (MB-3) is a specifical small-molecule inhibitor of the histone acetyltransferase Gcn5 (IC₅₀=100 μM), which has a high affinity to the Gcn5 enzyme comparable to that of its natural substrate, histone H3. Butyrolactone 3 shows weak inhibitory on CBP (IC₅₀=0.5 mM). Butyrolactone 3 can be used in studies of cancer, metabolic, autoimmune and neurological diseases.

Anacardic Acid, extracted from cashew nut shell liquid, is a histone acetyltransferase inhibitor, inhibits HAT activity of p300 and PCAF, with IC₅₀s of ∼8.5 μM and ∼5 μM, respectively.

NU9056 is a potent and selective Tip60 (KAT5) histone acetyltransferase inhibitor with an of 2 µM. NU9056 shows >16-fold selectivity for Tip60 over PCAF, p300 and GCN5. NU9056 induces apoptosis of prostate cancer cells.

WM-8014 is an inhibitor of MOZ, a member of histone acetyltransferases, with an IC₅₀ of 55 nM.

WM-1119, a chemical probe, is a highly potent and selective KAT6A inhibitor, with an IC₅₀ of 0.25 μM for KAT6A in lymphoma cells, the binding K_D values of WM-1119 with KAT6A, KAT5 and KAT7 are 2 nM, 2.2 μM, 0.5 μM , respectively.

Remodelin hydrobromide is an orally active and selective inhibitor of acetyltransferase NAT10. Remodelin hydrobromide inhibits NAT10 activitity and slows DNA replication and suppresses growth of prostate cancer cells. Remodelin hydrobromide inhibits the growth of prostate cancer and hepatocellular carcinoma in xenograft model. Remodelin hydrobromide enhances the healthspan in hutchinson-gilford progeria syndrome (HGPS) mouse model.

NSC 228155 is an activator of EGFR, binds to the extracellular region of EGFR and enhance tyrosine phosphorylation of EGFR. NSC 228155 is also a potent inhibitor of KIX-KID interaction, inhibits kinase-inducible domain (KID) from CREB and KID-interacting domain (KIX) from CBP, with an IC₅₀ of 0.36 μM.

GNE-781 is an orally active, highly potent and selective CBP inhibitor with an IC₅₀ of 0.94 nM in TR-FRET assay. GNE-781 also inhibits BRET and BRD4(1) with IC₅₀s of 6.2 nM and 5100 nM, respectively. GNE-781 displays antitumor activity in an MOLM-16 AML xenograft model.

Garcinol, a polyisoprenylated benzophenone harvested from Garcinia indica, exerts anti-cholinesterase properties towards acetyl cholinesterase (AChE) and butyrylcholinesterase (BChE) with IC₅₀s of 0.66 μM and 7.39 μM, respectively. Garcinol also inhibits histone acetyltransferases (HATs, IC₅₀= 7 μM) and p300/CPB-associated factor (PCAF, IC₅₀ = 5 μM). Garcinol has anti-inflammatory and anti-cancer activity.