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NVP-AUY922: A Novel Heat Shock Protein 90 Inhibitor Active against Xenograft Tumor Growth, Angiogenesis, and Metastasis

Open access
Eccles, Suzanne A., Massey, Andy, Raynaud, Florence I., Sharp, Swee Y., Box, Gary, Valenti, Melanie, Patterson, Lisa, de Haven Brandon, Alexis, Gowan, Sharon, Boxall, Frances, Aherne, Wynne, Rowlands, Martin, Hayes, Angela, Martins, Vanessa, Urban, Frederique, Boxall, Kathy, Prodromou, Chrisostomos, Pearl, Laurence, James, Karen, Matthews, Thomas P., Cheung, Kwai-Ming, Kalusa, Andrew, Jones, Keith, McDonald, Edward, Barril, Xavier, Brough, Paul A., Cansfield, Julie E., Dymock, Brian, Drysdale, Martin J., Finch, Harry, Howes, Rob, Hubbard, Roderick E., Surgenor, Alan, Webb, Paul, Wood, Mike, Wright, Lisa, Workman, Paul·2008·Cancer Research

Abstract

We describe the biological properties of NVP-AUY922, a novel resorcinylic isoxazole amide heat shock protein 90 (HSP90) inhibitor. NVP-AUY922 potently inhibits HSP90 (Kd = 1.7 nmol/L) and proliferation of human tumor cells with GI50 values of approximately 2 to 40 nmol/L, inducing G1-G2 arrest and apoptosis. Activity is independent of NQO1/DT-diaphorase, maintained in drug-resistant cells and under hypoxic conditions. The molecular signature of HSP90 inhibition, comprising induced HSP72 and depleted client proteins, was readily demonstrable. NVP-AUY922 was glucuronidated less than previously described isoxazoles, yielding higher drug levels in human cancer cells and xenografts. Daily dosing of NVP-AUY922 (50 mg/kg i.p. or i.v.) to athymic mice generated peak tumor levels at least 100-fold above cellular GI50. This produced statistically significant growth inhibition and/or regressions in human tumor xenografts with diverse oncogenic profiles: BT474 breast tumor treated/control, 21%; A2780 ovarian, 11%; U87MG glioblastoma, 7%; PC3 prostate, 37%; and WM266.4 melanoma, 31%. Therapeutic effects were concordant with changes in pharmacodynamic markers, including induction of HSP72 and depletion of ERBB2, CRAF, cyclin-dependent kinase 4, phospho-AKT/total AKT, and hypoxia-inducible factor-1α, determined by Western blot, electrochemiluminescent immunoassay, or immunohistochemistry. NVP-AUY922 also significantly inhibited tumor cell chemotaxis/invasion in vitro, WM266.4 melanoma lung metastases, and lymphatic metastases from orthotopically implanted PC3LN3 prostate carcinoma. NVP-AUY922 inhibited proliferation, chemomigration, and tubular differentiation of human endothelial cells and antiangiogenic activity was reflected in reduced microvessel density in tumor xenografts. Collectively, the data show that NVP-AUY922 is a potent, novel inhibitor of HSP90, acting via several processes (cytostasis, apoptosis, invasion, and angiogenesis) to inhibit tumor growth and metastasis. NVP-AUY922 has entered phase I clinical trials. [Cancer Res 2008;68(8):2850–60]

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Crossref · 10.1158/0008-5472.can-07-5256

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Metadata

Authors
Eccles, S. A., Massey, A., Raynaud, F. I., Sharp, S. Y., Box, G., Valenti, M., Patterson, L., de Haven Brandon, A., Gowan, S., Boxall, F., Aherne, W., Rowlands, M., Hayes, A., Martins, V., Urban, F., Boxall, K., Prodromou, C., Pearl, L., James, K., Matthews, T. P., Cheung, K.-M., Kalusa, A., Jones, K., McDonald, E., Barril, X., Brough, P. A., Cansfield, J. E., Dymock, B., Drysdale, M. J., Finch, H., Howes, R., Hubbard, R. E., Surgenor, A., Webb, P., Wood, M., Wright, L., & Workman, P.
Venue
Cancer Research
Published
2008-04-15
Volume
68
Issue
8
Pages
2850-2860
ISSN
  • 0008-5472 (ISSN-L)
  • 1538-7445
OpenAlex
W2166999544
Cited by
479
References
4
FWCI
13.77
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: NVP-AUY922: A Novel Heat Shock Protein 90 Inhibitor Active against Xenograft Tumor Growth, Angiogenesis, and Metastasis. https://app.cochat.ai/papers/10.1158/0008-5472.can-07-5256
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Eccles, S. A., Massey, A., Raynaud, F. I., Sharp, S. Y., Box, G., Valenti, M., Patterson, L., de Haven Brandon, A., Gowan, S., Boxall, F., Aherne, W., Rowlands, M., Hayes, A., Martins, V., Urban, F., Boxall, K., Prodromou, C., Pearl, L., James, K., . . . Workman, P. (2008). NVP-AUY922: A Novel Heat Shock Protein 90 Inhibitor Active against Xenograft Tumor Growth, Angiogenesis, and Metastasis. Cancer Research. https://doi.org/10.1158/0008-5472.can-07-5256

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.