Edicotinib

• CAT Number: I007441
• CAS Number: 1142363-52-7
• Molecular Formula: C27H35N5O2
• Molecular Weight: 461.60
• Purity: ≥95%
• Synonyms: 5-cyano-N-[2-(4,4-dimethylcyclohexen-1-yl)-6-(2,2,6,6-tetramethyloxan-4-yl)pyridin-3-yl]-1H-imidazole-2-carboxamide
• InChI: InChI=1S/C27H35N5O2/c1-25(2)11-9-17(10-12-25)22-21(32-24(33)23-29-16-19(15-28)30-23)8-7-20(31-22)18-13-26(3,4)34-27(5,6)14-18/h7-9,16,18H,10-14H2,1-6H3,(H,29,30)(H,32,33)
• InChIKey: BNVPFDRNGHMRJS-UHFFFAOYSA-N
• SMILES: CC1(CCC(=CC1)C2=C(C=CC(=N2)C3CC(OC(C3)(C)C)(C)C)NC(=O)C4=NC=C(N4)C#N)C

Edicotinib (JNJ-40346527) is a potent, selective, brain penetrant and orally active colony-stimulating factor-1 receptor (CSF-1R) inhibitor with an IC50 of 3.2 nM. Edicotinib exhibits less inhibitory effects on KIT and FLT3 with IC50 values of 20 nM and 190 nM, respectively[1]. Edicotinib limits microglial expansion and attenuates microglial proliferation and neurodegeneration in mice. Edicotinib has the potential for Alzheimer’s disease and rheumatoid arthritis research[1][2].
Edicotinib (0.1 nM-1μM; 24 hours) Leads to a dose-dependent decrease of CSF1R activation and a concurrent reduction of ERK1 and ERK2 phosphorylation. The dose response curve shows the effect of JNJ-527 on CSF1R and ERK1/2, and the IC50 values are 18.6 nM and 22.5 nM for CSF1R and ERK1/2, respectively[1].
Edicotinib (oral gavage; 3, 10, 30 and 100 mg/kg; 5 days) significantly inhibits microglial proliferation in ME7 mice. It diminishes the number of microglia (total CD45+CD11b+ cells) only at the highest dose tested of 100 mg/kg, and JNJ-527 depletes up to 50% of patrolling blood monocytes at every dose tested (CD45+CD11bhighLy6Cintermediate/lowcells) with only a tendency for a reduction in the proportion of inflammatory monocytes (Ly6C high cells) at 100 mg/kg[1].Edicotinib exhibits a good pharmacokinetic/pharmacodynamics (PK/PD) profile, the microglial proliferation data shows an EC50 of 196/ml and 69 ng/g calculated from plasmatic and brain compound concentration, respectively[1].Edicotinib (oral gavage; 30 mg/kg; 33 days) significantly reduces the density of microglia in CA1 of the hippocampus of ME7-prion mice (PU.1+ cells) by up to 30%. And the expression of IL-1β is also reduced,but not other inflammatory cytokines[1].

Reference

[1]. Mancuso R, et al. CSF1R inhibitor JNJ-40346527 attenuates microglial proliferation and neurodegeneration in P301S mice.Brain. 2019 Oct 1;142(10):3243-3264.
 [Content Brief]

[2]. Genovese MC, et al. Results from a Phase IIA Parallel Group Study of JNJ-40346527, an Oral CSF-1R Inhibitor, in Patients with Active Rheumatoid Arthritis despite Disease-modifying Antirheumatic Drug Therapy.J Rheumatol. 2015 Oct;42(10):1752-60.
 [Content Brief]