MSC2360844

MSC2360844 is a potent, orally active and selective PI3Kδ inhibitor, with an IC50 of 145 nM. MSC2360844 shows highly selective against a panel of 278 additional kinases[1].

Research Areas >> Cancer

Signaling Pathways >> PI3K/Akt/mTOR >> PI3K

Research Areas >> Inflammation/Immunology

PI3Kδ:145 nM (IC50)

MSC2360844 (0-10 μM; 1 hours) completely abolished BCR-induced pAkt in Ramos B cells in a concentration-dependent manner with IC50 values of 280 nM[1]. MSC2360844 inhibits B cell proliferation in a concentration-dependent manner with an IC50 of 48 nM. MSC2360844 blocks BCR- and TCR-mediated responses in lymphocytes and TLR-induced IFNα by pDC in human primary cells[1]. Cell Proliferation Assay[1] Cell Line: B cells Concentration: 0-10 μM Incubation Time: 1 hour Result: Inhibited B cell proliferation in a concentration-dependent manner with an IC50 of 48 nM.

MSC2360844 (6.6-66 mg/kg; daily from week 2 to 10) ameliorates disease manifestations in a murine SLE model[1]. Animal Model: NZB/W F1 female mice[1] Dosage: 6.6, 22, or 66 mg/kg Administration: Oral; starting at week 2 post ADV-IFNα delivery, once daily at 10 weeks Result: Significantly reduced proteinuria incidence and severity in a dose-dependent manner.

[1]. Haselmayer P, et al. Characterization of Novel PI3Kδ Inhibitors as Potential Therapeutics for SLE and Lupus Nephritis in Pre-Clinical Studies. Front Immunol. 2014 May 22;5:233.