AUY922 (NVP-AUY922) is a potent, novel synthetic resorcinylic isoxazole amide inhibitor of heat shock protein 90 (HSP90).[1] It is a small molecular with the formula of C26H31N3O5 and molecular weight of 465.5. It has a much higher af?nity for Hsp90 and can be ound to the ATP binding site of Hsp90 at the N-terminal domain.[2] Heat shock protein 90 (HSP90) is a molecular chaperone essential for the stability of key regulators of cell growth and survival. NVP-AUY922 potently inhibits the proliferation of gastric cancer cell lines with with GI50 values of approximately 2 to 40 nmol/L and significantly induces the degradation of growth factor receptors and other client proteins.[3]
References:
[1] Suzanne A. E, Andy M, Florence I. R, et al. NVP-AUY922: A Novel Heat Shock Protein 90 Inhibitor Active against Xenograft Tumor Growth, Angiogenesis, and Metastasis. Cancer Res. 2008, 68. 2850-2860.
[2] Tsuyoshi U, Kazunori T, Shinichi T, Midori A, Munenori T, et al. Strong anti-tumor effect of NVP-AUY922, a novel Hsp90 inhibitor, on non-small cell lung cancer. Lung Cancer. 2012, 76. 26-31.
[3] Kyung-Hun L, Ju-Hee L, Sae-Won H, Seock-Ah I, et al. Antitumor activity of NVP-AUY922, a novel heat shock protein 90 inhibitor, in human gastric cancer cells is mediated through proteasomal degradation of client proteins. Cancer Sci. 2011, 102. 1388–1395.
