hdac in 3

HDAC-IN-3 (GSK3117391A) is a potent histone deacetylase (HDAC) inhibitor, and treatment chronic inflammatory disorders.

Top/HDAC-IN-3 (Compound 31) is a dual inhibitor of Topoisomerase and HDAC with oral activity. It induces DNA damage by elevating reactive oxygen species (ROS) levels, consequently inhibiting the clonal formation and migration of cancer cells, and triggering apoptosis (Apoptosis) and cell cycle arrest. Top/HDAC-IN-3 demonstrates a significant antitumor effect in NSCLC models, exhibiting a tumor growth inhibition (TGI = 77.5%, 100 mg/kg) superior to that of the HDAC inhibitor SAHA and the combination of SAHA with the topoisomerase inhibitor Irinotecan.

c-Met/HDAC-IN-3, a dual inhibitor targeting both c-Met and HDAC, exhibits potent inhibitory activity with IC50 values of 12.50 nM for c-Met and 26.97 nM for HDAC1. It induces apoptosis and causes cell cycle arrest in the G2/M phase.

Tubulin/HDAC-IN-3 (compound 12a) is a potent dual inhibitor of tubulin polymerization and HDAC1/8, with IC50 values of 5.4 μM for tubulin polymerization, and 0.155 and 0.177 μM for HDAC1 and HDAC8, respectively. It obstructs the cell cycle, triggers apoptosis, and suppresses colony formation [1].

CDK/HDAC-IN-3 is an orally active dual inhibitor of HDACs and CDKs, offering potent and selective inhibition of CDK9, CDK12, CDK13, HDAC1, HDAC2, and HDAC3, with IC50 values of 98.32 nM, 98.85 nM, 100 nM, 62.12 nM, 93.28 nM, and 82.87 nM, respectively, and is applicable in the treatment of acute myeloid leukemia (AML) [1].

JAK/HDAC-IN-3 (13a), a dual inhibitor of JAK and HDAC, exhibits IC50 values of 25.36 nM for JAK2, 0.2 μM for HDAC, and 0.43 μM for HDAC1, respectively [1].

PI3K/HDAC-IN-3 (36) acts as a dual inhibitor targeting PI3K and HDAC, exhibiting respective IC50 concentrations of 0.23 nM for PI3Kα and 172 nM for HDAC1. In MV4-11 cells, it inhibits AKT phosphorylation while enhancing H3 acetylation. Furthermore, PI3K/HDAC-IN-3 (36) demonstrates substantial, dose-dependent anticancer effects in an MV4-11 xenograft model [1].

FLT3/HDAC-IN-1 is a dual inhibitor targeting FLT3 and HDAC, with IC50 values of 30.4 nM for FLT3 and 52.4, 14.7 nM for HDAC1/3, respectively. It induces apoptosis in MV-4-11 cells and exhibits antiproliferative effects against BaF3 cells transformed by FLT3 mutations. FLT3/HDAC-IN-1 is useful for research on refractory solid tumors and hematological malignancies.

PI3K/HDAC-IN-4 (Compound 31f) is a dual inhibitor targeting PI3K and HDAC, with an IC50 of 0.2μM. It demonstrates high selectivity for HDAC1-3, with IC50 values of 75.5 nM, 70.9 nM, and 1.9 nM, respectively. As a potent pan-PI3K inhibitor, PI3K/HDAC-IN-4 has IC50 values of 2.5 nM, 80.5 nM, 10.0 nM, and 57.2 nM for PI3Kα, β, δ, and γ, respectively. This compound effectively induces apoptosis in tumor cells by concurrently inhibiting the PI3K/AKT/mTOR signaling pathway and HDAC1-3. It shows significant antiproliferative activity across various tumor cell lines, such as MV4-11, Jeko-1, HL60, and MCF-7, with IC50 values of 0.2, 0.9, 0.8, and 1.5 μM, respectively. PI3K/HDAC-IN-4 is applicable in the study of lymphoma and leukemia.

HDAC1/6-IN-3 is an effective HDAC inhibitor with significant inhibitory effects on HDAC1 (IC50= 1.1 nM) and HDAC6 (IC50= 2.7 nM). In HepG2 cells, it causes cell cycle arrest at the G0/G1 phase and induces apoptosis and pyroptosis. Furthermore, HDAC1/6-IN-3 demonstrates notable antitumor activity in HepG2 tumor xenograft models. This compound is applicable for cancer research, including studies on liver, lung, colon, and breast cancers.

HDAC3-IN-T247 (HDAC3 inhibitor T247) is a selective and potent histone deacetylase 3 (HDAC3) inhibitor with anticancer and antiviral activities.HDAC3-IN-T247 induces NF-κB acetylation in human colon cancer HCT116 cells in a dose-dependent manner.HDAC3-IN-T247 inhibits cancer cell proliferation. HDAC3-IN-T247 inhibits cancer cell proliferation.

HDAC3-IN-T326 is a potent and selective HDAC3 inhibitor that acts by increasing NF-κB acetylation and activating HIV gene expression in latent HIV-infected cells.

HDAC1/2-IN-3 is an inhibitor of both HDAC1 and HDAC2, demonstrating IC50 values of 0-5 nM and 5-10 nM, respectively.

HDAC/HSP90-IN-3 is a selective and potent dual inhibitor of fungal Hsp90 (IC50: 0.83 μM) and HDAC (IC50: 0.91 μM), exhibiting antifungal effects against azole-resistant Candida albicans. HDAC/HSP90-IN-3 exhibits inhibitory effects on important virulence factors and is able to downregulate the resistance genes ERG11 and CDR1.

Compound A5b, also known as JMJD3/HDAC-IN-1, is a dual inhibitor that targets both JMJD3 (Jumonji domain-containing protein demethylase 3) and HADC1 (histone deacetylase, IC50 = 16 nM). It induces hypermethylation of histone H3K27 and hyperacetylation of H3K9, while also promoting apoptosis through the cleavage of caspase-7 and PARP. This compound has demonstrated the ability to effectively inhibit cancer cell cloning, migration, and invasion [1].

PI3K/HDAC-IN-1 is a potent dual inhibitor of PI3K and HDAC, with IC50 values of 8.1 nM and 1.4 nM, respectively.

STAT3/HDAC-IN-2 (compound 18), a dual inhibitor of STAT3 and HDAC, promotes autophagy and apoptosis. This compound features an amphiphilic hydroxamic acid hybrid structure, derived from the natural product isopropanol lactone (IAL), and functions as a nanoscale anticancer agent. It has the ability to self-assemble into nanoparticles in aqueous environments, leading to enhanced tumor tissue accumulation, increased cellular uptake, and improved anticancer efficacy compared to its free state.

Compound 25h, also known as FLT3/HDAC-IN-2, is a dual inhibitor of FLT3/HDAC. It exhibits antiproliferative activity against MOLM-13 cells and is used in the study of acute myeloid leukemia.

HDAC3/8 ligand-1 (compound 40) serves as a ligand for the target protein of PROTAC, utilized in the synthesis of YX968.

PROTACHDAC6 degrader 3 (Compound 4) is a selective inhibitor and degrader of HDAC6, with an IC50 of 686 nM and a DC50 of 171 nM. It enhances the acetylation of α-tubulin. [Pink: ligand for target protein; Blue: ligand for E3ligaseVHL.]

HDAC3/BRD4-IN-1 (compound 26n) is an inhibitor of HDAC3/BRD4, exhibiting an IC50 of 8 nM for HDAC3, while its IC50 values for HDAC1 and HDAC2 are 220 nM and 120 nM, respectively. It displays anti-tumor and anti-proliferative effects by upregulating Ac-H3 and downregulating c-Myc. The half-life of HDAC3/BRD4-IN-1 in human liver microsomes is 29.36 minutes.

HDAC6ligand-3 serves as a ligand for HDAC6 and can be utilized as a target protein ligand in the synthesis of [PROTAC] HDAC6 degrader4.

HDAC3-IN-6 (Compound SC26) is a selective HDAC3 inhibitor with an IC50 of 53 nM. It induces PD-L1 expression in a dose-dependent manner and leads to significant apoptosis and reactive oxygen species (ROS) production. HDAC3-IN-6 exhibits strong antitumor efficacy against colorectal cancer.

HDAC3-IN-7 (Compound 8ae) is a selective HDAC3 inhibitor with an IC50 value of 311 nM. It effectively induces the degradation of PD-L1 via a cathepsin B-mediated lysosomal pathway, demonstrating the ability to inhibit tumor cell proliferation, migration, and invasion. HDAC3-IN-7 holds potential for cancer research.