c-Fms Inhibitor

Pexidartinib (PLX-3397) is a potent, orally active, selective, and ATP-competitive colony stimulating factor 1 receptor (CSF1R or M-CSFR) and c-Kit inhibitor, with IC₅₀s of 20 and 10 nM, respectively. Pexidartinib (PLX-3397) exhibits 10- to 100-fold selectivity for c-Kit and CSF1R over other related kinases. Pexidartinib (PLX-3397) induces cell apoptosis and has anti-tumor activity. Pexidartinib has limited permeability to the blood-brain barrier, primarily through ABCB1.

PLX5622 is a highly selective brain penetrant and orally active CSF1R inhibitor (IC₅₀=0.016 μM; K_i=5.9 nM). PLX5622 allows for extended and specific microglial cells elimination, preceding and during pathology development. PLX5622 demonstrates desirable PK properties in varies animals. PLX5622 is predominantly administered via ad libitum diets with a dose of 1200 ppm.

PLX5622 in AIN-76A Diet (1200 ppm) contains 1200 mg of PLX5622 (HY-114153) per Kg of AIN-76 diet and it can be used for microglia clearance. PLX5622 in AIN-76A Diet (1200 ppm) is ideal choose for microglia function research in healthy/diseased states. PLX5622 in AIN-76A Diet (1200 ppm) has been verified by MedChemExpress (MCE).The color of PLX5622 in AIN-76A Diet (1200 ppm) provided by MCE is blue. Meanwhile, MCE will provide an equal amount of PLX5622-Free AIN-76A Diet (no added pigments) as a complimentary offering, which is used for the control group.

Sotuletinib (BLZ945) is a potent, selective, orally active and brain-penetrant CSF-1R (c-Fms) inhibitor with an IC₅₀ of 1 nM, showing more than 1,000-fold selectivity against its closest receptor tyrosine kinase homologs. Sotuletinib can be used for microglia depletion, and for tumor and CNS-related disease research.

Pexidartinib hydrochloride (PLX-3397 hydrochloride) is a potent, orally active, selective, and ATP-competitive colony stimulating factor 1 receptor (CSF1R or M-CSFR) and c-Kit inhibitor, with IC₅₀s of 20 and 10 nM, respectively. Pexidartinib hydrochloride exhibits 10- to 100-fold selectivity for c-Kit and CSF1R over other related kinases. Pexidartinib hydrochloride induces cell apoptosis and has anti-cancer activity.

CSF1R-IN-27 is a CSF1R inhibitor with oral effectiveness, kinome-wide selective profile, low cellular cytotoxicity, and CSF1R IC₅₀ values of 19 nM, 88 nM, 173 nM, 797 nM, 1448 nM, and >3000 nM. CSF1R-IN-27 suppresses M-CSF-induced phosphorylation of CSF1R, AKT, and ERK in macrophages, and inhibits hepatic p-CSF1R/p-AKT/p-ERK signaling. CSF1R-IN-27 reduces serum transaminase levels, improves hepatic histopathology, alleviates inflammatory cell infiltration, and decreases circulating TNF-α and IL-6 levels. CSF1R-IN-27 can be used for the research of acute liver injury.

NPA101.3 is an orally active RET receptor tyrosine kinase and VEGFR2 inhibitor (RET IC₅₀ = 0.001 μM, RET^V804M IC₅₀ = 0.008 μM, VEGFR2 IC₅₀ = 0.003 μM). NPA101.3 inhibits purified TRKA (IC₅₀ = 32 nM) and CSF1R (IC₅₀ = 46 nM). NPA101.3 completely suppresses tumor formation in RET^/C634Y-transformed cells and also attenuates tumor formation in HRAS^/G12V-transformed cells. NPA101.3 can be used in the research of RET-driven cancers.

Linifanib (ABT-869) is a potent and orally active multi-target inhibitor of VEGFR and PDGFR family with IC₅₀s of 4, 3, 66, and 4 nM for KDR, FLT1, PDGFRβ, and FLT3, respectively. Linifanib shows prominent antitumor activity. Linifanib has much less activity against unrelated RTKs, soluble tyrosine kinases, or serine/threonine kinases. Linifanib is a specific miR-10b inhibitor that blocks miR-10b biogenesis.

GW2580 is an orally bioavailable and selective inhibitor of c-Fms kinase which completely inhibits human cFMS kinase in vitro at 0.06 μM. GW2580 acts as a competitive inhibitor of ATP binding to the cFMS kinase and inhibits colony-stimulating-factor-1 signaling.

Dovitinib (CHIR-258) is an orally active, potent multi-targeted tyrosine kinase (RTK) inhibitor with IC₅₀s of 1, 2, 36, 8/9, 10/13/8, 27/210 nM for FLT3, c-Kit, CSF-1R, FGFR1/FGFR3, VEGFR1/VEGFR2/VEGFR3 and PDGFRα/PDGFRβ, respectively. Dovitinib has potent antitumor activity.

Sotuletinib (BLZ945) hydrochloride is a potent, selective, orally active and brain-penetrant CSF-1R (c-Fms) inhibitor with an IC₅₀ of 1 nM, showing more than 1,000-fold selectivity against its closest receptor tyrosine kinase homologs. Sotuletinib hydrochloride can be used for microglia depletion, and for tumor and CNS-related disease research..

Vimseltinib (DCC-3014) is a c-FMS (CSF-IR) and c-Kit dual inhibitor extracted from patent WO2014145025A2, Compound Example 10, has IC₅₀s of <0.01 μM and 0.1-1 μM, respectively. Vimseltinib has certain oral bioavailability.

Emactuzumab(RG 7155) is a specific monoclonal antibody that inhibits colonystimulating factor 1 receptor (CSF1R) activation. Emactuzumab has high affinity for CSF-1R with K_i value of 0.2 nM to blocks CSF-1R dimerization. Emactuzumab can be used for the research of several diseases, such as diffuse-type tenosynovial giant cell tumour (dt-GCT) .

Velzatinib (M4205) is a multi-target inhibitor for PDGFRB, PDGFRA, CSF1R, c-Kit, FLT3, and LCK, with an IC₅₀s of 2.6, 50, 5.5, 44, 141 and 141 nM, respectively. Velzatinib exhibits antitumor efficacy in xenograft mouse models.

PLX5622 hemifumarate is a highly selective brain penetrant and orally active CSF1R inhibitor (IC₅₀=0.016 μM; K_i=5.9 nM). PLX5622 hemifumarate allows for extended and specific microglial elimination, preceding and during pathology development. PLX5622 hemifumarate demonstrates desirable PK properties in varies animals.

PF 477736 (PF 00477736) is a potent, selective and ATP-competitive inhibitor of Chk1, with a K_i of 0.49 nM, it is also a Chk2 inhibitor, with a K_i of 47 nM. PF 477736 shows <100-fold selectivity for Chk1 over VEGFR2, Fms, Yes, Aurora-A, FGFR3, Flt3, and Ret (IC₅₀=8 (K_i), 10, 14, 23, 23, 25, and 39 nM, respectively). PF 477736 can enhance Gemcitabine antitumor activity in vitro and in vivo.

Pazopanib Hydrochloride (GW786034 Hydrochloride) is a novel multi-target inhibitor of VEGFR1, VEGFR2, VEGFR3, PDGFRβ, c-Kit, FGFR1, and c-Fms with an IC₅₀ of 10, 30, 47, 84, 74, 140 and 146 nM, respectively.

Mavrilimumab (CAM 3001) is a monoclonal antibody that binds to the α subunit of the granulocyte-macrophage colony stimulating factor (GM-CSF) receptor and blocks intracellular signalling downstream of GM-CSF. GM-CSF might be a mediator of the hyperactive inflammatory response associated with respiratory failure and death.

Pimicotinib (ABSK021) is a selective and orally active CSF1R inhibitor with an IC₅₀ value of 19.48 nM (determined by inhibiting ADP production). Pimicotinib exhibits anti-tumor activity.

Ki20227 is an orally active and highly selective c-Fms tyrosine kinase (CSF1R) inhibitor with IC₅₀s of 2 nM, 12 nM, 451 and 217 nM for CSF1R, VEGFR2 (vascular endothelial growth factor receptor-2), c-Kit (stem cell factor receptor) and PDGFRβ (platelet-derived growth factor receptor β). Ki20227 suppresses osteoclast differentiation and osteolytic bone destruction.