Epigenetic Reader Domain Inhibitor

(+)-JQ-1 (JQ1), a chemical probe, is a potent, specific, CNS-penetrant and reversible BET bromodomain inhibitor, with IC₅₀s of 77 and 33 nM for the first and second bromodomain (BRD4(1/2)). (+)-JQ-1 also activates autophagy.

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.

Revumenib (SNDX-5613) is a potent and specific Menin-MLL inhibitor with a binding K_i of 0.149 nM and a cell based IC₅₀ of 10-20 nM. Revumenib can be used for the research of MLL-rearranged (MLL-r) acute leukemias, including acute lymphoblastic leukemia (ALL) and acute myeloid leukemia (AML).

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.

5-Ph-IAA is a derivative of IAA. 5-Ph-IAA, a ligand, establishes the auxin-inducible degron 2 (AID2) system together with an OsTIR1 (F74G) mutant. AID2 induces rapid and efficient depletion of mAID-fused proteins to study protein function in living cells, causing tumor suppression.

666-15 is a potent and selective CREB inhibitor with an IC₅₀ of 81 nM. 666-15 suppresses tumor growth in a breast cancer xenograft model.

Rolipram is a PDE4 inhibitor, with blood-brain barrier permeability, that reverses β-amyloid-induced learning and memory impairment in rats. Rolipram elevates intracellular cAMP and clevels and regulates the cAMP/CREB signaling pathway, thereby alleviating neuroinflammation and apoptotic responses. Rolipram promotes neuronal differentiation of human bone marrow mesenchymal stem cells and inhibits Methamphetamine- and morphine-induced hyperlocomotion in mice. Rolipram also reduces the viability of glioblastoma stem-like cells and enhances Bevacizumab (HY-P9906)-induced cell death. Rolipram inhibits the expression of proinflammatory cytokines and enhances central noradrenergic transmission. Rolipram is mainly used in studies related to various central nervous system diseases including Alzheimer's disease, major depressive disorder, glioblastoma multiforme, and multiple sclerosis.

Inobrodib (CCS1477) is an orally active, potent, and selective inhibitor of the p300/CBP bromodomain. Inobrodib binds to p300 and CBP with K_d values of 1.3 and 1.7 nM, respectively, and with 170/130-fold selectivity compared with BRD4 with a K_d of 222 nM. CCS1477 inhibits cell proliferation in prostate cancer cell lines and decreases androgen receptor (AR)- and C-MYC-regulated gene expression.

BI 2536 is a dual PLK1 and BRD4 inhibitor with IC₅₀s of 0.83 and 25 nM, respectively. BI-2536 suppresses IFNB (encoding IFN-β) gene transcription.

MZ 1 is a PROTAC connected by ligands for von Hippel-Lindau and BRD4. MZ 1 potently and rapidly induces reversible, long-lasting, and selective removal of BRD4 over BRD2 and BRD3. K_ds of 382/120, 119/115, and 307/228 nM for BRD4 BD1/2, BRD3 BD1/2, and BRD2 BD1/2, respectively.

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.

ARV-825 is a PROTAC connected by ligands for Cereblon and BRD4. ARV-825 binds to BD1 and BD2 of BRD4 with K_ds of 90 and 28 nM, respectively.

VTP50469 is a potent, highly selective and orally active Menin-MLL interaction inhibitor with a K_i of 104 pM. VTP50469 has potently anti-leukemia activity.

Birabresib (OTX-015) is a potent bromodomain (BRD2/3/4) inhibitor with IC₅₀s ranging from 92 to 112 nM.

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.

Ziftomenib (KO-539) is an orally active menin-MLL interaction inhibitor with antitumor activities (WO2017161028A1, compound 151).

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.

dBET1 is a PROTAC connected by ligands for Cereblon and BRD4 with an EC₅₀ of 430 nM. dBET1 is a PROTAC that composes of (+)-JQ1 (HY-13030) linked to NSC 527179 (HY-14658) with a linker.