Akt Inhibitor XVI; AT7867

General description

A cell-permeable pyrazolo compound that acts as a potent inhibitor against Akt (IC₅₀ = 32, 17, and 47 nM against Akt1, Akt2, and Akt3, respectively), PKA (IC₅₀ = 20 nM), and p70S6K (IC₅₀ = 85 nM) in an ATP-competitive manner (K_i = 18 nM using AKT2), with much reduced potency toward RSK1 (IC₅₀ >100 nM) and a panel of 13 other cellular kinases (IC₅₀ >1 µM). Shown to reduce cellular phosphorylation of GSK-3β (IC₅₀ range from 2.08 to 4.45 µM), S6R, FKHRL1, and inhibit the proliferation of cancer cells exhibiting constitutive Akt pathway activation both in vitro (IC₅₀ range from 0.94 to 11.86 µM) and in mice in vivo (20 mg/kg via i.p. or 90 mg/kg via p.o.).

A cell-permeable pyrazolo compound that acts as a potent inhibitor against Akt (IC₅₀ = 32, 17, and 47 nM against Akt1, Akt2, and Akt3, respectively), PKA (IC₅₀ = 20 nM), and p70S6K (IC₅₀ = 85 nM) in an ATP-competitive manner (K_i = 18 nM using AKT2), with much reduced activity toward RSK1 (IC₅₀ >100 nM) and a panel of 13 other cellular kinases (IC₅₀ >1 µM), including PDK1, PI 3-Kβ, SGK, GSK-3β, and MEK1. Shown to effectively reduce the phosphorylation levels of GSK-3β, S6R, and FKHRL1 (IC₅₀ range from 2.08 to 4.45 µM against GSK-3β pSer⁹ level), as well as inhibit the proliferation (IC₅₀ range from 0.94 to 11.86 µM) of cancer cells exhibiting constitutive Akt pathway activation, including the PTEN-deficient MES-SA uterine sarcoma and U87MG glioblastoma cell lines. AT7867 treatments via i.p. or p.o. (20 mg/kg and 90 mg/kg, respectively, once every 3 days) are also reported to result in Akt pathway and tumor growth inhibition in mice bearing MES-SA (~40% of untreated control on day 10 by i.p. or p.o.) or U87MG (~50% of untreated control on day 10 by i.p.) xenograft in vivo.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Other Notes

Grimshaw, K.M., et al. 2010. Mol. Cancer Ther.9, 1100.Saxty, G., et al. 2007. J. Med. Chem.50, 2293.

Packaging

Packaged under inert gas

10 mg in Glass bottle

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Warning

Toxicity: Standard Handling (A)