A PKC and GSK3 inhibitor
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Sotrastaurin

Item No. 16726

Technical Information
Formal Name
3-(1H-indol-3-yl)-4-[2-(4-methyl-1-piperazinyl)-4-quinazolinyl]-1H-pyrrole-2,5-dione
CAS Number
425637-18-9
Synonyms
  • AEB071
Molecular Formula
C25H22N6O2
Formula Weight
Purity
≥98%
A crystalline solid
DMF: 20 mg/mlDMF:PBS(pH 7.2)(1:1): 0.5 mg/mlDMSO: 10 mg/mlEthanol: 5 mg/ml
λmax
246, 438 nm
SMILES
CN(CC1)CCN1C2=NC3=CC=CC=C3C(C(C(N4)=O)=C(C5=CNC6=C5C=CC=C6)C4=O)=N2
InChi Code
InChI=1S/C25H22N6O2/c1-30-10-12-31(13-11-30)25-27-19-9-5-3-7-16(19)22(28-25)21-20(23(32)29-24(21)33)17-14-26-18-8-4-2-6-15(17)18/h2-9,14,26H,10-13H2,1H3,(H,29,32,33)
InChi Key
OAVGBZOFDPFGPJ-UHFFFAOYSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    Product Description

    Sotrastaurin is a protein kinase C (PKC) inhibitor that displays immunosuppressive activity, blocking T cell activation through the disruption of downstream NF-κB signaling.1,2 In cell-free assays, sotrastaurin was reported to inhibit PKCα, βI, δ, ε, η, and θ with Ki values of 0.95, 0.64, 2.1, 3.2, 1.8, and 0.22 nM, respectively.1 Sotrastaurin can prevent the production of various cytokines by activated T cells, macrophages, and keratinocytes in vitro and has been shown to inhibit an acute allergic contact dermatitis response in rats when dosed orally at 30 mg.3 However, clinical investigation of sotrastaurin for its potential to prevent renal transplant rejection was halted during phase II testing due to high incidence of rejection.4 Sotrastaurin is also reported to activate Wnt/β-catenin signaling via the inhibition of glycogen synthase kinase 3 (IC50s = 229 and 172 nM for α and β isoforms, respectively), which is essential for embryogenesis and adult stem cell maintenance.5,6

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Evenou, J.P., Wagner, J., Zenke, G., et alThe potent protein kinase C-selective inhibitor AEB071 (sotrastaurin) represents a new class of immunosuppressive agents affecting early T-cell activation. J. Pharmacol. Exp. Ther. 330(3), 792-801 (2009).

    2. Vafadari, R., Kraaijeveld, R., Weimar, W., et alTacrolimus inhibits NF-κB activation in peripheral human T cells. PLoS One 8(4), e60784 (2014).

    3. Skvara, H., Dawid, M., Kleyn, E., et alThe PKC inhibitor AEB071 may be a therapeutic option for psoriasis. J. Clin. Invest. 118(9), 3151-3159 (2008).

    4. Hardinger, K.L., and Brennan, D.C. Novel immunosuppressive agents in kidney transplantation. World J. Transplant. 3(4), 68-77 (2013).

    5. Verkaar, F., Blankesteijn, W.M., Smits, J.F.M., et alβ-Galactosidase enzyme fragment complementation for the measurement of Wnt/β-catenin signaling. The FASEB Journal 24(4), 1205-1217 (2010).

    6. Verkaar, F., van der Stelt, M., Blankesteijn, W.M., et alDiscovery of novel small molecule activators of β-catenin signaling. PLoS One 6(4), e19185 (2011).