flt3-in-2

FLT3-IN-2 is an FLT3 inhibitor (IC50<1 μM).

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.

FLT3-ITD-IN-2 (Compound A1) is an inhibitor of the FLT3-ITD kinase, exhibiting an IC50 of 2.12 nM. It effectively suppresses the proliferation of the FLT3-dependent human AML cell line MOLM-13, with an IC50 of 25.65 nM. FLT3-ITD-IN-2 demonstrates antitumor activity against acute myeloid leukemia.

IRAK1/4/pan-FLT3 Kinase-IN-2 (compound 27) is a potent dual inhibitor of IRAK1/4 and FLT3 with IC50 values of 10 nM, 0.7 nM, and < 0.5 nM, respectively. This compound enhances survival in mice models of acute myeloid leukemia.

FLT3/CHK1-IN-2 (Compound 30) is a dual inhibitor targeting FLT3 and CHK1, with IC50 values of 25.63 nM for CHK1, 16.39 nM for FLT3-WT, and 22.80 nM for FLT-D835Y. It displays favorable oral pharmacokinetic properties and kinase selectivity. FLT3/CHK1-IN-2 is applicable in acute myeloid leukemia (AML) research.

FLT3/ITD-IN-2 is a potent inhibitor of FLT3-ITD and is able to act on FLT3D835Y (IC50: 0.3 nM), FLT3 (IC50: 0.4 nM) and FLT3-ITD (IC50: 1.0 nM).FLT3/ITD-IN-2 effectively inhibits the phosphorylation of FLT3 and is able to effectively inhibit the proliferation of acute myeloid leukemia cells.

PDGFRα/FLT3-ITD-IN-2 is a potent inhibitor of PDGFRα (IC50>20 μM) and FLT3 (IC50: 0.004 μM). PDGFRα/FLT3-ITD-IN-2 has shown investigational potential in acute myeloid leukemia or chronic eosinophilic leukemia.

FLT3-IN-27 (compound 49) is an inhibitor of FLT3-ITD with an IC50 of 174 nM. It impedes cell growth by causing cell cycle arrest at the G1 phase, making it suitable for research in acute myeloid leukemia.

FLT3-IN-29 (Compound MY-10) is an FLT3 inhibitor with IC50 values of 6.5 nM and 10.3 nM for FLT3-ITD and FLT3-D835Y mutants, respectively. It induces cell cycle arrest at the G0/G1 phase and effectively triggers apoptosis (Apoptosis). Additionally, FLT3-IN-29 reduces reactive oxygen species (ROS) and mitochondrial membrane potential (MMP), displaying anti-leukemic properties.

FLT3-IN-28 (Compound 12y) is an orally active FLT3 inhibitor with antitumor properties. It selectively targets cancer cells with FLT3 internal tandem duplication (ITD) mutations, demonstrating IC50 values of 85, 290, 130, 65, and 220 nM against BaF3-FLT3-ITD, BaF3-TEL-VEGFR2, MV4-11, MOLM-13, and MOLM-14 cell lines, respectively. These lines include acute myeloid leukemia (AML) cells harboring FLT3-ITD mutations such as MV4-11 and MOLM-13/14. The compound also reduces phosphorylation levels of FLT3 and STAT5 in MOLM-13 cells, leading to cell cycle arrest and apoptosis. With an oral bioavailability of 19.2% in SD rats, FLT3-IN-28 extends survival in a dose-dependent manner in MOLM-13 xenografted NSG mouse models. It holds promise for research in FLT3-ITD-related cancer studies.

FLT3-IN-25 (compound 17) is a potent FLT3 inhibitor, demonstrating IC50 values of 1.2 nM for FLT3-WT, 1.4 nM for FLT3-D835Y, and 1.1 nM for FLT3-ITD. This compound plays a significant role in the treatment of acute myeloid leukemia (AML).

FLT3-IN-24 (compound 24) is a potent and selective inhibitor of FLT3 kinase, with an IC50 of 7.94 nM. It also exhibits anti-proliferative effects on cells.

FLT3-IN-21 (compound LC-3), a potent FLT3 inhibitor with an IC50 value of 8.4 nM, induces apoptosis, arrests the cell cycle in the G1 phase, and effectively inhibits the proliferation of FLT3-ITD-positive AML cells MV-4-11 with an IC50 of 5.3 nM. In murine models, a daily dose of 10 mg/kg FLT3-IN-21 markedly inhibited tumor growth in the MV-4-11 xenograft model, achieving a tumor growth inhibition (TGI) of 92.16% [1].

FLT3-IN-22 (compound 22f) is a potent FLT3 inhibitor with IC50 values of 0.941 nM for FLT3 and 0.199 nM for the FLT3/D835Y mutant. It demonstrates significant antiproliferative effects against MV4-11 cells and Ba/F3 cell lines expressing mutant FLT kinase variants, including FLT-D835Y and FLT3-F691L [1].

FLT3-IN-20 (compound 34f) is a potent FLT3 inhibitor with IC50 values of 1 nM for FLT3-D835Y and 4 nM for FLT3-ITD. It shows anti-proliferative effects on FLT3-ITD-positive AML cell lines, with IC50s of 7 nM in MV4-11, 9 nM in MOLM-13, and 4 nM in a MOLM-13 variant harboring the FLT3-ITD-D835Y mutation. FLT3-IN-20 is utilized in cancer research [1].

FLT3-IN-23 (compound 15), a potent inhibitor of FMS-like tyrosine kinase 3 (FLT3), exhibits an IC 50 value of 7.42 nM and demonstrates antiproliferative effects against BaF3 cells harboring diverse FLT3-TKD and FLT3-ITD-TKD mutations [1].

HPK1-IN-2 (Thieno[2,3-b]pyridin-6(7H)-one, 4-amino-5-[6-(4-methyl-1-piperazinyl)-1H-benzimidazol-2-yl]-HPK1-IN-2) is a potent and orally active inhibitor of hematopoietic progenitor kinase-1 (HPK1; IC50<0.05 μΜ). It also inhibits Lck (0.05 μΜFlt3 (IC50<0.05 μΜ) kinase activities with antitumor activity.

FLT3-IN-10 (2-Oxazolamine, 5-(4-fluorophenyl)-N-phenyl-) (compound 7c) is a potent inhibitor of FMS-like tyrosine kinase 3 (FLT3). FLT3-IN-10 shows the potential for the treatment of FLT3-mutated acute myeloid leukemia (AML).

Flonoltinib (JAK2/FLT3-IN-1) is an orally active and potent JAK2/FLT3 inhibitor, inhibiting JAK2, FLT3, JAK1, and JAK3. Flonoltinib has anti-cancer activity and can be used for studying myeloproliferative neoplasms.

FLT3 ligand-2 serves as a ligand for the target protein in PROTAC. It is utilized for synthesizing PROTAC FLT-3 degrader 1.

CG-3-246 is a dual inhibitor targeting FLT3 and BCL-2, with dissociation constants (Kd) of 63 nM and 4.25 nM, respectively. This compound plays a significant role in acute myeloid leukemia research.

FGFRs-IN-1 (Compound A16) is an orally active inhibitor targeting FGFR1/2/3/4, with IC50 values of 2.3, 7, 11, and 163 nM respectively. It also inhibits VEGFR1/2/3, Abl, and Flt3, with IC50 values of 61, 176, 112, 26, and 353 nM. The compound shows weak inhibition of CYP enzymes. FGFRs-IN-1 reduces the expression of α-SMA and collagen I, and it inhibits epithelial-mesenchymal transition (EMT) in A549 cells stimulated by TGF-β1. Additionally, FGFRs-IN-1 demonstrates anti-inflammatory activity in mouse models of lung fibrosis induced by Bleomycin and liver fibrosis induced by CCl4.

Altiratinib (DCC-2701)(DCC-2701) is a novel c-MET/TIE-2/VEGFR inhibitor; effectively reduce tumor burden in vivo and block c-MET pTyr(1349)-mediated signaling, cell growth and migration as compared with an HGF antagonist in vitro.

FLT3/VEGFR2-IN-1 (Compound 26) is a potent inhibitor of FLT3, VEGFR2, and HDAC, exhibiting IC50 values of 14.5 nM, 3.9 nM, and 30.8 nM against FLT3, VEGFR2, and HDAC1, respectively. It effectively inhibits the phosphorylation of STAT3 and ERK1/2, as well as the proliferation of leukemia cells. FLT3/VEGFR2-IN-1 demonstrates antitumor activity and is applicable in research on acute myeloid leukemia.