BRDT 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.

ABBV-744 is a first-in-class, orally active and selective inhibitor of the BDII domain of BET family proteins with IC₅₀ values ranging from 4 to 18 nM for BRD2, BRD3, BRD4 and BRDT. ABBV-744 is primarily metabolized by CYP3A4 with agent-like properties enable the investigation of its antitumor efficacy and tolerability.

GSK778 (iBET-BD1), a chemical probe, is a potent and selective BD1 bromodomain inhibitor of the BET proteins, with IC₅₀s of 75 nM (BRD2 BD1), 41 nM (BRD3 BD1), 41 nM (BRD4 BD1), and 143 nM (BRDT BD1), respectively. GSK778 phenocopies the effects of pan-BET inhibitors in cancer models.

GSK046 (iBET-BD2), a chemical probe, is a potent, selective and orally active BD2 bromodomain inhibitor of the BET proteins, with IC₅₀s of 264 nM (BRD2 BD2), 98 nM (BRD3 BD2), 49 nM (BRD4 BD2) and 214 nM (BRDT BD2), respectively. GSK046 has immunomodulatory activity.

GSK973, a chemical probe, is a highly selective, orally bioavailable inhibitor of the BD2s (second bromodomains) of the BET family, with a pIC₅₀ of 7.8 and a pK_d of 8.7 for BRD4 BD2. GSK973 displays a 1600-fold selectivity for BRD4 BD2 over BRD4 BD1. GSK973 shows good potency against BRD2 BD2, BRD3 BD2, and BRDT BD2 (pIC₅₀=7.4~7.8; pK_d=8.3~8.5).

BRDT-IN-2 is a BRDT-BD1-preferring inhibitor (K_i=10 μM) with higher affinity for BRDT-BD1 than BRD4-BD1. BRDT-IN-2 preferentially binds BRDT-BD1 without direct interaction with BRDT-BD1’s Arg54 residue. BRDT-IN-2 binds BRD4-BD1 with lower affinity via structured water molecule displacement in its binding pocket. BRDT-IN-2 can be used for the research of multiple myeloma.

BRDT-IN-1 is a BRDT-BD1 and BRDT-T inhibitor with BRDT-BD1 IC₅₀ 19 nM, K_i 8.8 nM, K_a 1.6 nM, and BRDT-T IC₅₀ 56 nM, K_a 5.0 nM. BRDT-IN-1 displays in vitro metabolic stability and limited cellular permeability in MDCK-MDR1 cells. BRDT-IN-1 can be used for the research of multiple myeloma.

LT052 is a highly selective BET BD1 inhibitor with an IC₅₀ of 87.7 nM. LT052 exhibits nanomolar BRD4 BD1 potency and 138-fold selectivity over BRD4 BD2 (IC₅₀=12.130 μM). LT052 has anti-inflammatory?activity and can be used for acute gout arthritis research.

(S)-JQ-35 (TEN-010) is an orally active, blood-brain barrier-permeable bromodomain inhibitor that selectively targets the bromodomain and extra-terminal domain (BET) protein family (BRD4, BRD3, BRD2 and BRDT). (S)-JQ-35 blocks the activation of Myc gene expression by BRD4, thereby inhibiting cancer cell proliferation and promoting cancer cell apoptosis. (S)-JQ-35 can be used in research related to NUT midline carcinoma and neuroblastoma.

RVX-297 is a potent, orally active BET bromodomain inhibitor with selectivity for BD2. RVX-297 shows IC₅₀s of 0.08, 0.05, and 0.02 μM for BRD2(BD2), BRD3(BD2), and BRD4(BD2), respectively. RVX-297 suppresses inflammatory gene expression in multiple immune cell types. RVX-297 is effective in acute inflammation and autoimmunity models.

CF53 is a highly potent, selective and orally active inhibitor of BET protein, with a K_i of <1 nM, K_d of 2.2 nM and an IC₅₀ of 2 nM for BRD4 BD1. CF53 binds to both the BD1 and BD2 domains of BRD2, BRD3, BRD4, and BRDT BET proteins with high affinities, very selective over non-BET bromodomain-containing proteins. CF53 shows potent anti-tumor activity both in vitro and in vivo.

BET bromodomain inhibitor 1 is an orally active, selective bromodomain and extra-terminal (BET) bromodomain inhibitor with an IC₅₀ of 2.6 nM for BRD4. BET bromodomain inhibitor 1 binds to BRD2(2), BRD3(2), BRD4(1), BRD4(2), and BRDT(2) with high affinities (K_d values of 1.3 nM, 1.0 nM, 3.0 nM, 1.6 nM, 2.1 nM, respectively). bromodomain inhibitor 1 has anti-cancer activity.

PLK1/BRD4-IN-3 (Compound 21) is a selective dual inhibitor for bromodomain 4 (BRD4) and polo-like kinase 1 (PLK1). PLK1/BRD4-IN-3 inhibits BRD4-BD1, PLK1 and BRDT-BD1, with IC₅₀s of 0.059, 0.127 and 0.245 μM, respectively.

BY27 is a potent and selective BET BD2 inhibitor, shows 38, 5, 7, and 21-fold BD1/BD2 selectivity for BRD2, BRD3, BRD4, and BRDT. Anti-cancer activity.

GXH-II-052 is a potent bivalent bromodomain and extraterminal domain (BET) inhibitor. GXH-II-052 shows binding potential for BRD4-1, BRD4-2, BRD4-T, BRDT-1, BRDT-2, BRDT-T with K_d values of 28, 9.1, 4.8, 0.6, 8.4, 2.6 nM, respectively. GXH-II-052 shows antiproliferative activity. GXH-II-052 decreases the expression of c-Myc.

NC-III-49-1 is a potent bivalent bromodomain and extraterminal domain (BET) inhibitor. NC-III-49-1 shows binding potential for BRD4-1, BRD4-2, BRD4-T, BRDT-1, BRDT-2, BRDT-T with K_d values of 0.095, 0.32, 0.29, 0.089, 5.5, 0.058 nM, respectively. NC-III-49-1 shows antiproliferative activity. NC-III-49-1 decreases the expression of c-Myc.

BET-IN-13 is a potent BET inhibitor with an IC₅₀ value of 1.6 nM. BET-IN-13 reduces LPS-induced TNF-α, IL-1β, IL-6, and NOS2 mRNA expression levels. BET-IN-13 shows anti-inflammatory activity. BET-IN-13 has the potential for the research of acute liver injury.

BET BD2-IN-1 (compound 45) is a potent and selective inhibitor of BET BD2 (IC₅₀=1.6 nM). BET BD2-IN-1 inhibits the differentiation of Th17 cells by decreasing the activation of STAT3 and NF-κB. BET BD2-IN-1 is used in psoriasis and inflammatory bowel disease (IBD) research.

SB-284851-BT is an inhibitor of BRD4/p38α/BRDT. SB-284851-BT inhibits BRD4-BD1 (IC₅₀=1.7 µM), p38α (K_d=0.47 nM), BRDT (1) (IC₅₀=18 µM) and BRD4 (1)(IC₅₀=3.7 µM). SB-284851-BT reduces IL-8 production by inhibiting p38α, as well as inhibiting BRD4 to down-regulates c-Myc and NF-κB gene pathways in cancer. SB-284851-BT can combined with the bromine domain and extra terminal (BET).

BD-IN-1 is a pan bromodomain (BD) inhibitor with K_D values of 250, 420, 130, 430, 67, 240, 970 nM for BRD4(1), CBP, BRPF1B, BRD7, BRD9, BRDT(1), CECR2 respectively. BD-IN-1 shows antiproliferative activity.