FLT3 Degrader

PF15 TFA is an orally active FLT3-ITD PROTAC degrader with a DC₅₀ of 76.7 nM and an IC₅₀ of 36 nM against FLT3-ITD. PF15 TFA induces FLT3-ITD protein degradation, thereby downregulating its phosphorylation level. PF15 TFA inhibits the proliferation of FLT3-ITD-positive cells and reduces the phosphorylation level of STAT5, a downstream molecule of FLT3-ITD. PF15 TFA exhibits efficacy in in vivo xenograft models of acute myeloid leukemia and prolongs survival. PF15 TFA can be used for the research of acute myeloid leukemia.

PROTAC FLT3/CDKs degrader-1 (Compound C3) is a degrader for cyclin-dependent kinases (DC₅₀ is 18.73 nM for CDK2) and the FMS-like tyrosine kinase 3 (FLT3). PROTAC FLT3/CDKs degrader-1 induces differentation of HL-60 (72.77% differentation at 6.25 nM), inhibits proliferation of AML cells, with IC₅₀s of 2.9-37 nM. PROTAC FLT3/CDKs degrader-1 is potential for ameliorating acute myeloid leukemia. (Pink: ligand for target protein FLT3/CDKs ligand-1 (HY-161709); Black: linker (HY-W012935); Black: ligand for E3 ligase Thalidomide 5-fluoride (HY-W087383))

PROTAC FLT3/JAK2/BRD4 Degrader-1 is a PROTAC degrader that target FLT3, JAK2, and BRD4 with DC₅₀ values of 5.23, 0.678, and 1.17 nM, respectively. PROTAC FLT3/JAK2/BRD4 Degrader-1 exhibits potent antiproliferative activity against MV4;11 cells (IC₅₀ = 0.79 nM) and FLT3 mutant-transformed Ba/F3 cells. PROTAC FLT3/JAK2/BRD4 Degrader-1 induces apoptosis in MV4;11 cells. PROTAC FLT3/JAK2/BRD4 Degrader-1 demonstrates significant anti-tumor efficacy in the MV4;11 xenograft model established in NOD SCID mice. PROTAC FLT3/JAK2/BRD4 Degrader-1 can be used for the study of acute myeloid leukemia (AML).

PF15 is an orally active FLT3-ITD PROTAC degrader with a DC₅₀ of 76.7 nM and an IC₅₀ of 36 nM against FLT3-ITD. PF15 induces FLT3-ITD protein degradation, thereby downregulating its phosphorylation level. PF15 inhibits the proliferation of FLT3-ITD-positive cells and reduces the phosphorylation level of STAT5, a downstream molecule of FLT3-ITD. PF15 exhibits efficacy in in vivo xenograft models of acute myeloid leukemia and prolongs survival. PF15 can be used for the research of acute myeloid leukemia.

PROTAC FLT3/CDK9 degrader-1 is a potent FLT3 and CDK9 dual PROTAC degrader. PROTAC FLT3/CDK9 degrader-1 induces apoptosis and effective degradation of target proteins FLT3 and CDK9. PROTAC FLT3/CDK9 degrader-1 has the potential for the research of FLT3-ITD mutated AML.

PROTAC FLT-3 degrader 3 (compound 35) is a PROTACs degrader of FLT. PROTAC FLT-3 degrader 3 has antiproliferative activity, with IC₅₀ of 7.55 nM in MV4-11 cells.

MA191 is a FLT3 PROTAC degrader. MA191 abrogates FLT3 inhibitor resistance from rebound activation of mitogen-activated kinases. MA191 mediates rapid FLT3-ITD degradation through a mechanism requiring VHL, neddylation, and BIM. MA191 reduces FLT3-ITD levels before inducing apoptosis. MA191 halts AML cell proliferation in Danio rerio. MA191 can be used for the study of acute myeloid leukemia (AML) (Pink: FLT3 ligand: (HY-175311), Blue: E3 ligase CRBN Ligand (HY-112078), Black: Linker, E3 ligase ligand-linker conjugate (HY-175312)).

FLT3/CDKs ligand-1 (Compound 14) is a ligand for target protein, which promotes the degradation of cyclin-dependent kinase (CDK) and the FMS-like tyrosine kinase 3 (FLT3), inhibits FLT3/CDK related proliferations and survivals of leukemia cells. LT3/CDKs ligand-1 can be used for synthesis of PROTAC FLT3/CDKs degrader-1 (HY-161708).

LWY713 is a PROTAC-class FLT3 degrader (DC₅₀=0.64 nM), which selectively induces FLT3 degradation via cereblon and proteasome-dependent pathways. LWY713 inhibits cell proliferation and induces G0/G1 phase arrest and apoptosis in MV4-11 cells. LWY713 shows effective in vivo antitumor activity in MV4-11 xenograft models.

PROTAC FLT-3 degrader 5 is a FLT3 PROTAC degrader (DC₅₀ = 1.2 nM). PROTAC FLT-3 degrader 5 functions as a molecular glue to degrade cereblon substrates GSPT1 and IKZF1/3. PROTAC FLT-3 degrader 5 exhibits antiproliferative activity against drug-resistant acute myeloid leukemia (AML) cells and is potentially useful in AML research. (Pink: FLT3/GSPT1/IKZF1/3 ligand: (HY-169374); Blue: Thalidomide: (HY-14658); Black: linker; Thalidomide + linker: (HY-W1123823)).

PROTAC FLT3/CHK1 Degrader-1 is a PROTAC FLT3/CHK1 degrader, with DC₅₀ values of 5.88 nM (FLT3) and 4.17 nM (CHK1), respectively. PROTAC FLT3/CHK1 Degrader-1 can inhibit the phosphorylation of FLT3 downstream signaling effectors STAT5 (Tyr694), AKT (Ser473), and ERK (Tyr204), downregulate the protein level of c-Myc and maintain the expression of p53 protein. PROTAC FLT3/CHK1 Degrader-1 induces apoptosis in MV-4-11 cells. PROTAC FLT3/CHK1 Degrader-1 shows significant anti-tumor efficacy in mice bearing MV-4-11 subcutaneous xenografts. PROTAC FLT3/CHK1 Degrader-1 can be used for the study of acute myeloid leukemia (AML).