1
|
Roman D, VerHoeve J, Schadt H, Vicart A, Walker UJ, Turner O, Richardson TA, Wolford ST, Miller PE, Zhou W, Lu H, Akimov M, Kluwe W. Ocular toxicity of AUY922 in pigmented and albino rats. Toxicol Appl Pharmacol 2016; 309:55-62. [DOI: 10.1016/j.taap.2016.08.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 08/24/2016] [Accepted: 08/26/2016] [Indexed: 10/21/2022]
|
2
|
Yong K, Cavet J, Johnson P, Morgan G, Williams C, Nakashima D, Akinaga S, Oakervee H, Cavenagh J. Phase I study of KW-2478, a novel Hsp90 inhibitor, in patients with B-cell malignancies. Br J Cancer 2015; 114:7-13. [PMID: 26695442 PMCID: PMC4716540 DOI: 10.1038/bjc.2015.422] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 10/12/2015] [Accepted: 10/26/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND KW-2478 is a novel, non-ansamycin, non-purine heat-shock protein 90 (Hsp90) inhibitor. METHODS In this phase I, multicentre study, KW-2478 was administered intravenously over 1 h at doses ranging from 14 to 176 mg m(-2) once daily on days 1-5 of a 14-day cycle in a standard 3+3 design in 27 patients (22 with multiple myeloma and 5 with non-Hodgkin lymphoma). Patients enrolled had relapsed/refractory disease previously treated with ⩾2 regimens. RESULTS There were no dose-limiting toxicities, thus the maximum-tolerated dose was not reached. KW-2478 was well tolerated and did not manifest significant retinal or ocular toxicity. The most common treatment-related adverse events were diarrhoea (33.3%), fatigue (29.6%), headache (25.9%), hypertension (22.2%), nausea (14.8%), vomiting (7.4%), and dizziness (7.4%). Plasma concentrations peaked at the end of infusion and decayed in a biphasic manner with a terminal half-life of ∼6 h. Target inhibition was inferred from the increase in Hsp70 levels in peripheral blood mononuclear cells at doses ⩾71 mg m(-2). Twenty-four of 25 (96%) evaluable patients showed stable disease, with five being free of disease progression for ⩾6 months. CONCLUSIONS Preliminary clinical response data were encouraging and warrant further investigation of KW-2478 in combination regimens for relapsed/refractory B-cell malignancies.
Collapse
Affiliation(s)
- K Yong
- UCL Cancer Institute, University College London, Huntley Street, London WC1E 6DD, UK
| | - J Cavet
- Department of Haematology, Christie Hospital/University of Manchester, Wilmslow Road, Manchester M20 4BX, UK
| | - P Johnson
- Cancer Research UK Clinical Centre, Southampton General Hospital, Tremona Road, Southampton SO16 6YD, UK
| | - G Morgan
- Myeloma Institute for Research and Therapy, West Markham Street, Little Rock, AR 72205, USA
| | - C Williams
- Centre for Clinical Haematology, Nottingham University Hospital, Hucknall Road, Nottingham NG5 1PB, UK
| | - D Nakashima
- Kyowa Hakko Kirin Pharma Inc., Princeton, NJ, USA
| | - S Akinaga
- Kyowa Hakko Kirin Co. Ltd, Tokyo Research Triangle Park, Tokyo 194-8533, Japan
| | - H Oakervee
- Department of Haematology, St. Bartholomew's Hospital, West Smithfield, London SE24 9LG, UK
| | - J Cavenagh
- Department of Haematology, St. Bartholomew's Hospital, West Smithfield, London SE24 9LG, UK
| |
Collapse
|
3
|
Kanamaru C, Yamada Y, Hayashi S, Matsushita T, Suda A, Nagayasu M, Kimura K, Chiba S. Retinal toxicity induced by small-molecule Hsp90 inhibitors in beagle dogs. J Toxicol Sci 2014; 39:59-69. [DOI: 10.2131/jts.39.59] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
| | | | | | | | - Atsushi Suda
- Research Division, Chugai Pharmaceutical Co., Ltd
| | | | | | | |
Collapse
|
4
|
Lock RB, Carol H, Maris JM, Kang MH, Reynolds CP, Kolb EA, Gorlick R, Keir ST, Billups CA, Kurmasheva RT, Houghton PJ, Smith MA. Initial testing (stage 1) of ganetespib, an Hsp90 inhibitor, by the Pediatric Preclinical Testing Program. Pediatr Blood Cancer 2013; 60:E42-5. [PMID: 23303741 PMCID: PMC4225043 DOI: 10.1002/pbc.24451] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Accepted: 11/27/2012] [Indexed: 12/31/2022]
Abstract
Ganetespib, an Hsp90 inhibitor, was tested against the PPTP in vitro cell line panel and selected xenografts in vivo, including JAK2- and BRAF-mutated models. Ganetespib demonstrated potent in vitro cytotoxic activity (median rIC50 8.8 nM, range 4.4-27.1 nM). In vivo, ganetespib induced significant differences in EFS distribution for 4 of 11 xenografts. Intermediate activity (EFS T/C > 2) was noted only for the MV4;11 xenograft, and there were no objective responses. Administered as single agents, Hsp90 inhibitors examined by the PPTP have shown limited evidence for a therapeutic window against both solid tumor and leukemia pediatric preclinical models.
Collapse
Affiliation(s)
- Richard B. Lock
- Children’s Cancer Institute Australia for Medical Research, Randwick, NSW, Australia,Correspondence to: Richard B. Lock, PhD, Leukemia Biology Program Children’s Cancer Institute, Australia Lowy Cancer Research Centre, High Street, Randwick, NSW 2031, Australia.
| | - Hernan Carol
- Children’s Cancer Institute Australia for Medical Research, Randwick, NSW, Australia
| | - John M. Maris
- Children’s Hospital of Philadelphia, University of Pennsylvania School of Medicine and Abramson Family Cancer Research Institute, Philadelphia, Pennsylvania
| | - Min H. Kang
- Texas Tech University Health Sciences Center, Lubbock, Texas
| | | | | | | | | | | | | | | | | |
Collapse
|
5
|
Barrott JJ, Haystead TAJ. Hsp90, an unlikely ally in the war on cancer. FEBS J 2013; 280:1381-96. [PMID: 23356585 PMCID: PMC3815692 DOI: 10.1111/febs.12147] [Citation(s) in RCA: 148] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Revised: 01/10/2013] [Accepted: 01/22/2013] [Indexed: 12/25/2022]
Abstract
On the surface heat shock protein 90 (Hsp90) is an unlikely drug target for the treatment of any disease, let alone cancer. Hsp90 is highly conserved and ubiquitously expressed in all cells. There are two major isoforms α and β encoded by distinct genes and together they may constitute 1%-3% of the cellular protein. Deletion of the protein is embryonic lethal and there are no recognized polymorphisms suggesting an association or causal relationship with any human disease. With respect to cancer, the proteins absence from two recent high profile articles, 'Hallmarks of cancer: the next generation' [Hanahan & Weinberg (2011) Cell 144, 646-674] and 'Comprehensive molecular portraits of human breast tumours' [Koboldt et al. (2012) Nature] underlines the perception that it is an unlikely bona fide target to treat this disease. Yet, to date, there are 17 distinct Hsp90 inhibitors in clinical trials for multiple indications in cancer. The protein has been championed for over 20 years by the National Cancer Institute (Bethesda, MD, USA) as a cancer target since the discovery of the antitumor activity of the natural product geldanamycin. This review aims to look at the conundrum of why Hsp90 can even be considered a druggable target for the treatment of cancer. We propose that in contrast to the majority of chemotherapeutics our growing armamentarium of investigational Hsp90 drugs represents an elegant choice that offers real hope in the long-term treatment of certain cancers.
Collapse
Affiliation(s)
- Jared J Barrott
- Department of Pharmacology and Cancer Biology, Duke University, Durham, NC 27710, USA
| | | |
Collapse
|
6
|
Shimamura T, Perera SA, Foley KP, Sang J, Rodig SJ, Inoue T, Chen L, Li D, Carretero J, Li YC, Sinha P, Carey CD, Borgman CL, Jimenez JP, Meyerson M, Ying W, Barsoum J, Wong KK, Shapiro GI. Ganetespib (STA-9090), a nongeldanamycin HSP90 inhibitor, has potent antitumor activity in in vitro and in vivo models of non-small cell lung cancer. Clin Cancer Res 2012; 18:4973-85. [PMID: 22806877 DOI: 10.1158/1078-0432.ccr-11-2967] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE We describe the anticancer activity of ganetespib, a novel non-geldanamycin heat shock protein 90 (HSP90) inhibitor, in non-small cell lung cancer (NSCLC) models. EXPERIMENTAL DESIGN The activity of ganetespib was compared with that of the geldanamycin 17-AAG in biochemical assays, cell lines, and xenografts, and evaluated in an ERBB2 YVMA-driven mouse lung adenocarcinoma model. RESULTS Ganetespib blocked the ability of HSP90 to bind to biotinylated geldanamycin and disrupted the association of HSP90 with its cochaperone, p23, more potently than 17-AAG. In genomically defined NSCLC cell lines, ganetespib caused depletion of receptor tyrosine kinases, extinguishing of downstream signaling, inhibition of proliferation and induction of apoptosis with IC(50) values ranging 2 to 30 nmol/L, substantially lower than those required for 17-AAG (20-3,500 nmol/L). Ganetespib was also approximately 20-fold more potent in isogenic Ba/F3 pro-B cells rendered IL-3 independent by expression of EGFR and ERBB2 mutants. In mice bearing NCI-H1975 (EGFR L858R/T790M) xenografts, ganetespib was rapidly eliminated from plasma and normal tissues but was maintained in tumor with t(1/2) 58.3 hours, supporting once-weekly dosing experiments, in which ganetespib produced greater tumor growth inhibition than 17-AAG. However, after a single dose, reexpression of mutant EGFR occurred by 72 hours, correlating with reversal of antiproliferative and proapoptotic effects. Consecutive day dosing resulted in xenograft regressions, accompanied by more sustained pharmacodynamic effects. Ganetespib also showed activity against mouse lung adenocarcinomas driven by oncogenic ERBB2 YVMA. CONCLUSIONS Ganetespib has greater potency than 17-AAG and potential efficacy against several NSCLC subsets, including those harboring EGFR or ERBB2 mutation.
Collapse
Affiliation(s)
- Takeshi Shimamura
- Department of Molecular Pharmacology and Therapeutics, Oncology Institute, Loyola University of Chicago, Stritch School of Medicine, Maywood, Illinois, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|