DNA Methyltransferase Inhibitor

Hydralazine hydrochloride is an orally active, blood-brain barrier-permeable DNA methyltransferase inhibitor with vasodilatory, arterial smooth muscle relaxant and hypotensive activities. Hydralazine hydrochloride reactivates silenced tumor suppressor genes via mediating DNA demethylation, while exerting neuroprotective and anti-inflammatory properties. Hydralazine hydrochloride inhibits NOS-2 (iNOS) and COX-2, and reduces the production of NO and PGE_E2; meanwhile, Hydralazine hydrochloride scavenges reactive oxygen species and inhibits macrophage activation. Hydralazine hydrochloride alleviates motor dysfunction, neuropathic inflammatory pain, and formalin-induced somatic and emotional pain responses. In addition, Hydralazine hydrochloride directly induces DNA strand breaks and sister chromatid exchange, exhibiting certain mutagenic characteristics. Hydralazine hydrochloride has been widely used in studies on hypertension, various cancers (such as cervical cancer, leukemia), spinal cord injury and the mechanisms of inflammatory pain.

CM-272 is a first-in-class, potent, selective, substrate-competitive and reversible dual G9a/DNA methyltransferases (DNMTs) inhibitor with antitumor activities. CM-272 inhibits G9a, DNMT1, DNMT3A, DNMT3B and GLP with IC₅₀s of 8 nM, 382 nM, 85 nM, 1200 nM and 2 nM, respectively. CM-272 inhibits cell proliferation and promotes apoptosis, inducing IFN-stimulated genes and immunogenic cell death.

DNMT3A-IN-1 (compound 1) is an effective and selective DNMT3A inhibitor. DNMT3A-IN-1 exhibits inhibitory activity against DNMT3A, with K_I values ranging from 9.16 to 18.85 μM (AdoMet) and 11.37 to 23.34 μM (poly dI-dC). DNMT3A-IN-1 can induce apoptosis in acute myeloid leukemia (AML) cell lines (Apoptosis).

METTL1-WDR4-IN-1 (Compound 1) is a selective competitive inhibitor of the methyltransferase complex METTL1-WDR4 (IC₅₀ = 144 μM). METTL1-WDR4-IN-1 inhibits the m⁷G methyltransferase activity of the METTL1-WDR4 complex, blocking m⁷G modification of PKM mRNA, reducing PKM2 protein expression, disrupting the METTL1/PKM2/H3K9la positive feedback loop, and simultaneously inhibiting PKM2 nuclear translocation-mediated CD155 transcriptional activation. METTL1-WDR4-IN-1 can inhibit tumor cell proliferation, weaken glycolytic metabolism, reverse tumor immune evasion (restoring NK cell and CD8⁺ T cell function), and regulate RNA epigenetic modification and the tumor immune microenvironment. METTL1-WDR4-IN-1 can be used in immunotherapy research for cancers such as colorectal cancer, and is particularly suitable for use in combination with PKM2 inhibitors to enhance anti-tumor treatment efficacy.

Nanaomycin A is a selective DNMT3B inhibitor with an IC₅₀ of 500 nM. Nanaomycin A inhibits the in vitro growth of human Plasmodium falciparum with an IC₈₀ of 33.1 nM.

Guadecitabine sodium (SGI-110 sodium) is a second-generation DNA methyltransferases (DNMT) inhibitor for research of acute myeloid leukemia (AML) and myelodysplastic syndromes (MDS).

Procainamide hydrochloride (Procaine amide hydrochloride) is a specific and potent inhibitor of DNA methyltransferase 1 (DNMT1), which reactivates the expression of tumor suppressor factors by demethylating tumor suppressor genes. Procainamide hydrochloride induces vacuolization in various cell types and reduces cell proliferation and migration. Procainamide hydrochloride relaxes airway smooth muscle by activating potassium channels. Procainamide hydrochloride can be used in cancer and arrhythmia research.

Lomeguatrib is a O⁶-methylguanine-DNA methyltransferase (MGMT) inhibitor, with IC₅₀s of 9 nM in cell-free assay and ～6?nM in MCF-7 cells.

Procainamide (Procaine amide) is a specific and potent inhibitor of DNA methyltransferase 1 (DNMT1), which reactivates the expression of tumor suppressor factors by demethylating tumor suppressor genes. Procainamide induces vacuolization in various cell types and reduces cell proliferation and migration. Procainamide relaxes airway smooth muscle by activating potassium channels. Procainamide can be used in cancer and arrhythmia research.

γ-Oryzanol is a potent DNA methyltransferases (DNMTs) inhibitor in the striatum of mice. γ-Oryzanol significantly inhibits the activities of DNMT1 (IC₅₀=3.2 μM), DNMT3a (IC₅₀=22.3 μM).

ALKBH1-IN-1 (Compound 13h) is a selective ALKBH1 inhibitor, with an IC₅₀ of 0.026 μM and 1.39 μM in the fluorescence polarization and enzyme activity assay, respectively. ALKBH1-IN-1 can modulate the level of DNA 6mA modifications. ALKBH1-IN-1 can be used to study the functions of ALKBH1 and DNA 6mA.

METTL1-WDR4-IN-2, an adenosine derivative, is a selective methyltransferase Like 1 (METTL1)-WDR4 inhibitor with an IC₅₀ of 41 μM. METTL1-WDR4-IN-2 shows selectivity against METTL3-14 (IC₅₀ of 958 μM) and METTL16 (IC₅₀ of 208 μM). METTL1-WDR4-IN-2 can be used for the study of cancer.

DC-05 is a DNA methyltransferase 1 (DNMT1) inhibitor, with an IC₅₀ and a K_d of 10.3 μM and 1.09 μM, respectively.

5-Azacytidine (Standard) is the analytical standard of 5-Azacytidine. This product is intended for research and analytical applications. 5-Azacytidine (Azacitidine; 5-AzaC; Ladakamycin) is a nucleoside analogue of cytidine that specifically inhibits DNA methylation. 5-Azacytidine is incorporated into DNA to covalently trap DNA methyltransferases and contributes to reverse epigenetic changes. 5-Azacytidine induces cell autophagy.

5-Aza-4'-thio-2'-deoxycytidine (5-Aza-T-dCyd) is an orally active DNA methyltransferase I (DNMT1) inhibitor. 5-Aza-4'-thio-2'-deoxycytidine, a sulfur-containing deoxy-cytidine analog, has the potential for DNA hypomethylating and has antitumor effects.

CM-579 trihydrochloride is a first-in-class reversible, dual inhibitor of G9a and DNMT, with IC₅₀ values of 16 nM, 32 nM for G9a and DNMT, respectively. Has potent in vitro cellular activity in a wide range of cancer cells.

Hydralazine is an orally active, blood-brain barrier-permeable DNA methyltransferase inhibitor with vasodilatory, arterial smooth muscle relaxant and hypotensive activities. Hydralazine reactivates silenced tumor suppressor genes via mediating DNA demethylation, while exerting neuroprotective and anti-inflammatory properties. Hydralazine inhibits NOS-2 (iNOS) and COX-2, and reduces the production of NO and PGE_E2; meanwhile, Hydralazine scavenges reactive oxygen species and inhibits macrophage activation. Hydralazine alleviates motor dysfunction, neuropathic inflammatory pain, and formalin-induced somatic and emotional pain responses. In addition, Hydralazine directly induces DNA strand breaks and sister chromatid exchange, exhibiting certain mutagenic characteristics. Hydralazine has been widely used in studies on hypertension, various cancers (such as cervical cancer, leukemia), spinal cord injury and the mechanisms of inflammatory pain.

DC_517 is a DNA methyltransferase 1 (DNMT1) inhibitor, with an IC₅₀ and a K_d of 1.7 μM and 0.91 μM, respectively.

DNMT/HDAC-IN-1 (Compund 15a) is a dual DNMT and HDAC inhibitor with IC₅₀ values for HDAC1 and HDAC6 are 56.84 nM and 17.39 nM respectively. DNMT/HDAC-IN-1 can induce apoptosis and be used in tumor research.

Psammaplin A is a marine metabolite. Psammaplin A is a selective HDAC1 (IC₅₀: 45 nM), DNA methyltransferases (IC₅₀: 18.6 nM) and aminopeptidase N (APN) (IC₅₀: 18 μM) inhibitor. Psammaplin A also inhibits DNA topoisomerase and farnesyl protein transferase. Psammaplin A is a PPARγ activator and induces apoptosis. Psammaplin A has antitumor and anti-inflammatory activities. Psammaplin A has antibacterial activity against Gram-positive bacteria and inhibits DNA synthesis and DNA gyrase activity. Psammaplin A inhibits angiogenesis.