PRMT8 Inhibitor

MS023, a chemical probe, is a potent, selective, and cell-active inhibitor of human type I protein arginine methyltransferases (PRMTs) inhibitor, with IC₅₀s of 30, 119, 83, 4 and 5 nM for PRMT1, PRMT3, PRMT4, PRMT6, and PRMT8, respectively.

GSK3368715 dihydrochloride (EPZ019997 dihydrochloride) is an orally active, reversible, and S-adenosyl-L-methionine (SAM) uncompetitive type I protein arginine methyltransferases (PRMTs) inhibitor (IC₅₀=3.1 nM (PRMT1), 48 nM (PRMT3), 1148 nM (PRMT4), 5.7 nM (PRMT6), 1.7 nM (PRMT8)). GSK3368715 dihydrochloride (EPZ019997 dihydrochloride) produces a shift in arginine methylation states, alters exon usage, and has strong anti-cancer activity.

GSK3368715 (EPZ019997) is an orally active, reversible, and S-adenosyl-L-methionine (SAM) uncompetitive type I protein arginine methyltransferases (PRMTs) inhibitor (IC₅₀=3.1 nM (PRMT1), 48 nM (PRMT3), 1148 nM (PRMT4), 5.7 nM (PRMT6), 1.7 nM (PRMT8)). GSK3368715 (EPZ019997) produces a shift in arginine methylation states, alters exon usage, and has strong anti-cancer activity.

MS023 dihydrochloride is a potent, selective, and cell-active inhibitor of human type I protein arginine methyltransferases (PRMTs) inhibitor, with IC₅₀s of 30, 119, 83, 4 and 5 nM for PRMT1, PRMT3, PRMT4, PRMT6, and PRMT8, respectively.

SKLB06489 is a selective and orally active inhibitor of type I PRMT enzymes, with IC₅₀ values of 64.55 nM (PRMT1), 4.21 nM (PRMT6), and 51.27 nM (PRMT8). SKLB06489 inhibits cell proliferation, colony formation, DNA replication, and DNA damage repair in cancer cells. SKLB06489 induces G0/G1-phase cell cycle arrest and apoptosis in cancer cells. SKLB06489 enhances intracellular cholesterol efflux via ABCA1 and ABCG1 upregulation, disrupts cholesterol metabolic homeostasis, and suppresses tumor growth in subcutaneous xenograft models. SKLB06489 can be used for the research of triple-negative breast cancer (TNBC).

MS3-123 is an orally active PRMT1 inhibitor (IC₅₀ = 11.4 nM) that selectively targets the unique Cys119 residue within the SAM-binding pocket. MS3-123 covalently binds to PRMT1 through a time-dependent irreversible mechanism and exhibits high selectivity over other PRMT family members and other methyltransferases. MS3-123 inhibits breast cancer cell proliferation, migration and invasion, and induces cell cycle arrest and apoptosis. MS3-123 is useful for breast cancer research.

MS049, a chemical probe, is a potent, selective, and cell-active dual inhibitor of PRMT4 and PRMT6 with IC₅₀s of 34 nM and 43 nM, respectively. MS049 reduces levels of Med12me2a and H3R2me2a in HEK293 cells. MS049 is not toxic and does not affect the growth of HEK293 cells.

GSK3368715 trihydrochloride (EPZ019997) is an orally active, reversible, and S-adenosyl-L-methionine (SAM) uncompetitive type I protein arginine methyltransferases (PRMTs) inhibitor (IC₅₀=3.1 nM (PRMT1), 48 nM (PRMT3), 1148 nM (PRMT4), 5.7 nM (PRMT6), 1.7 nM (PRMT8)). GSK3368715 trihydrochloride (EPZ019997) produces a shift in arginine methylation states, alters exon usage, and has strong anti-cancer activity.

PRMT4-IN-1 is a selective inhibitor of PRMT4 (IC₅₀=3.2 nM). PRMT4-IN-1 inhibits MCF7 relative viability.

PRMT1-IN-3 is a potent protein arginine methyltransferase 1 (PRMT1) inhibitor with an IC₅₀ of 4.11 μM. PRMT1-IN-3 inhibits PRMT6 and PRMT8 with IC₅₀s of 23.3 and 30.1 μM. PRMT1-IN-3 suppresses asymmetric dimethylarginine (ADMA) levels and histone H4R3me2a modification in triple-negative breast cancer (TNBC) cells. PRMT1-IN-3 induces cell cycle arrest, apoptosis, and inhibits migration and colony formation in MDA-MB-231 cells. PRMT1-IN-3 acts as chemotherapeutic sensitizers for Paclitaxel (HY-B0015). PRMT1-IN-3 can be used for the study of TNBC.

CARM1-IN-4 (compound 11f) is a potent CARM1 inhibitor with IC₅₀s of 9 nM and 56 nM for CARM1 and PRMT1, respectively. CARM1-IN-4 displays significant anti-proliferative effects on colorectal cancer cell lines. CARM1-IN-4 effectively inhibits the methyltransferase activity of CARM1 and prevents methylation of downstream proteins. CARM1-IN-4 induces apoptosis and shows antitumor activity.