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HSP90 Inhibitors: Current Development and Potential in Cancer Therapy
Abstract
In the last decade, the molecular chaperone HSP90 has emerged as an important target in cancer therapeutics and has subsequently become the focus of several drug discovery and development efforts. The first-in-class HSP90 inhibitor 17-AAG entered into Phase I clinical trial in 1999. Today 13 HSP90 inhibitors representing multiple drug classes, with different modes of action, are undergoing clinical evaluation. The present review will highlight the involvement of HSP90 in regulating and maintaining the transformed phenotype, provide an overview on current HSP90 inhibitors and further update on the most relevant patents which have recently appeared in the literature. Keywords: Cancer therapeutics, cell surface, chaperoning, drug discovery, HSP90, signal transduction.
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“However, to date, there are no clinically approved HSP90 inhibitors, as most trials have been associated with limited efficacy and significant toxicity”
From Bruton tyrosine kinase degradation as a therapeutic strategy for cancer (2019) · cites this paper as [11]
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“presumably because HSP90 inhibition promotes the degradation of different substrates in different tissues and rapidly induces stress responses that may mediate resistance.11”
From Bruton tyrosine kinase degradation as a therapeutic strategy for cancer (2019) · cites this paper as [11]
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“Unfortunately, its derivatives, including 17-AAG (17-N-allyloamino-17demethoxygeldanamycin), failed in the clinic partly due to high toxicity.(24,25) Synthetic second-generation Hsp90 inhibitors, such as luminespib, have shown more favorable results.”
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“Tumor cells often display increased abundance of Hsp90, which subsequently promotes tumor cell survival and transformation through effects on Akt, TNFα, NF-κB, and other oncogene or tumor suppressors, and overexpression of Hsp90 in breast cancer correlates with poor prognosis (Sidera and Patsavoudi, 2014).”
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“Meng et al (111) and Sidera et al (112) demonstrated that TPX2 can modulate lamin A/C phosphorylation levels in ovarian cancer cells, thereby affecting their stability and inhibiting cellular processes.”
BackgroundPU-H71 (NSC 750424): a molecular masterpiece that targets HSP90 in cancer and beyond
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Matsuzaki, K., Harada, A., Tanaka, K., Takeiri, A., & Mishima, M. (2014) · Mutation Research/Genetic Toxicology and Environmental Mutagenesis · doi:10.1016/j.mrgentox.2014.08.002 · Cited by 2
Role of Heat Shock Protein 90 in Regulating Downstream Signal Transduction Cascades
Lei, W., Duron, D. I., Stine, C., & Streicher, J. M. (2019) · Heat shock proteins · doi:10.1007/978-3-030-03952-3_9 · Cited by 1
Small-Molecule Inhibitors of Protein–Protein Interactions as Therapeutics
Poluri, K. M., Gulati, K., Tripathi, D. K., & Nagar, N. (2023) · Springer eBooks · doi:10.1007/978-981-99-2423-3_7 · Cited by 1
Zhong, Y., Li, S., Xu, Z., Gao, J., Ma, Q., Gao, T., Tang, J., Xiong, M., Xu, Y., Dai, H., et al. (2025) · Communications Biology · doi:10.1038/s42003-025-08189-3 · Cited by 1
Diezmann, S., & Cowen, L. E. (2014) · Springer eBooks · doi:10.1007/978-1-4939-1130-1_8 · Cited by 1
“The intricate liaison between Hsp90 and cancer proteins is being exploited for the development of anticancer therapeutics, and there are currently 13 Hsp90 inhibitors in clinical trials for the treatment of diverse cancers [15].”
BackgroundTargeting Heat Shock Proteins in Multiple Myeloma
Kale, V. P., Phadtare, S., Amin, S., & Pandey, M. K. (2019) · Heat shock proteins · doi:10.1007/978-3-030-03952-3_12 · Cited by 1
Targeting Hsp-90 Related Disease Entities for Therapeutic Development
Westlake, T. J., Sun, M., Rosenblum, B. C., Zhuang, Z., & Rosenblum, J. S. (2019) · Heat shock proteins · doi:10.1007/978-3-030-23158-3_10 · Cited by 1
Screening Technique for Heat Shock Protein 90 Inhibitors from Natural Products
Hu, Y., Zhang, X. J., Yang, X. T., Tang, Y. Y., Hu, L. Y., & Zhu, D. (2019) · Heat shock proteins · doi:10.1007/978-3-030-23158-3_19 · Cited by 1
Potential of HSP90 Inhibitors to Treat Neurofibromatosis-Related Tumors
Vitte, J., & Giovannini, M. (2015) · Heat shock proteins · doi:10.1007/978-3-319-17211-8_13
Allosteric Modulators of Heat Shock Protein 90 (HSP90)
Koay, Y. C., & McAlpine, S. R. (2016) · Royal Society of Chemistry eBooks · doi:10.1039/9781782629276-00404
Heat Shock Protein 90 c-Terminal Inhibitors in Cancer Treatment
Tutar, Y. (2015) · International Journal of Pharmaceutical Sciences and Developmental Research · doi:10.17352/ijpsdr.000001
“Hsp90 is essential for cancer cell survival and tumor progression pathways, therefore; Hsp90 inhibition has been remarkable anti-cancer drug target in oncology [2-4].”
Background
Metadata
- Authors
- Sidera, K., & Patsavoudi, E.
- Affiliations
- Pasteur Hellenic Institute (GR)
- Venue
- Recent Patents on Anti-Cancer Drug Discovery
- Publisher
- Bentham Science Publishers Ltd.
- Published
- 2013-12-13
- Volume
- 9
- Issue
- 1
- Pages
- 1-20
- ISSN
- 1574-8928 (ISSN-L)
- OpenAlex
- W4245469960
- Cited by
- 222
- References
- 0
- Citations by year
- 2026: 3 · 2025: 7 · 2024: 8 · 2023: 17 · 2022: 14 · 2021: 28 · 2020: 21 · 2019: 31 · 2018: 18 · 2017: 19 · 2016: 28 · 2015: 19 · 2014: 8 · 2013: 1
- FWCI
- 8.35
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Recent Patents on Anti-Cancer Drug Discovery (publishedVersion)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heat shock proteins research
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Ubiquitin and proteasome pathways
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Histone Deacetylase Inhibitors Research
- Keywords
- Hsp90 inhibitors, HSP90, molecular chaperones, cancer therapeutics, 17-AAG, drug discovery, clinical trials, patents, transformed phenotype, signal transduction, cell surface
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