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Richter S, Steenblock C, Fischer A, Lemm S, Ziegler CG, Bechmann N, Nölting S, Pietzsch J, Ullrich M. Improving susceptibility of neuroendocrine tumors to radionuclide therapies: personalized approaches towards complementary treatments. Theranostics 2024; 14:17-32. [PMID: 38164150 PMCID: PMC10750207 DOI: 10.7150/thno.87345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 09/30/2023] [Indexed: 01/03/2024] Open
Abstract
Radionuclide therapies are an important tool for the management of patients with neuroendocrine neoplasms (NENs). Especially [131I]MIBG and [177Lu]Lu-DOTA-TATE are routinely used for the treatment of a subset of NENs, including pheochromocytomas, paragangliomas and gastroenteropancreatic tumors. Some patients suffering from other forms of NENs, such as medullary thyroid carcinoma or neuroblastoma, were shown to respond to radionuclide therapy; however, no general recommendations exist. Although [131I]MIBG and [177Lu]Lu-DOTA-TATE can delay disease progression and improve quality of life, complete remissions are achieved rarely. Hence, better individually tailored combination regimes are required. This review summarizes currently applied radionuclide therapies in the context of NENs and informs about recent advances in the development of theranostic agents that might enable targeting subgroups of NENs that previously did not respond to [131I]MIBG or [177Lu]Lu-DOTA-TATE. Moreover, molecular pathways involved in NEN tumorigenesis and progression that mediate features of radioresistance and are particularly related to the stemness of cancer cells are discussed. Pharmacological inhibition of such pathways might result in radiosensitization or general complementary antitumor effects in patients with certain genetic, transcriptomic, or metabolic characteristics. Finally, we provide an overview of approved targeted agents that might be beneficial in combination with radionuclide therapies in the context of a personalized molecular profiling approach.
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Affiliation(s)
- Susan Richter
- Institute for Clinical Chemistry and Laboratory Medicine, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Charlotte Steenblock
- Department of Internal Medicine III, University Clinic Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Alessa Fischer
- Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Zurich (USZ), and University of Zurich (UZH), Zurich, Switzerland
| | - Sandy Lemm
- Department of Radiopharmaceutical and Chemical Biology, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden, Germany
- Faculty of Chemistry and Food Chemistry, School of Science, Technische Universität Dresden, Dresden, Germany
| | - Christian G. Ziegler
- Department of Internal Medicine III, University Clinic Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
- University Hospital Würzburg, Division of Endocrinology and Diabetes, Würzburg, Germany
| | - Nicole Bechmann
- Institute for Clinical Chemistry and Laboratory Medicine, Faculty of Medicine and University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Svenja Nölting
- Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Zurich (USZ), and University of Zurich (UZH), Zurich, Switzerland
- Department of Medicine IV, University Hospital, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Jens Pietzsch
- Department of Radiopharmaceutical and Chemical Biology, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden, Germany
- Faculty of Chemistry and Food Chemistry, School of Science, Technische Universität Dresden, Dresden, Germany
| | - Martin Ullrich
- Department of Radiopharmaceutical and Chemical Biology, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden, Germany
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Maharjan CK, Ear PH, Tran CG, Howe JR, Chandrasekharan C, Quelle DE. Pancreatic Neuroendocrine Tumors: Molecular Mechanisms and Therapeutic Targets. Cancers (Basel) 2021; 13:5117. [PMID: 34680266 PMCID: PMC8533967 DOI: 10.3390/cancers13205117] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/08/2021] [Accepted: 10/09/2021] [Indexed: 12/16/2022] Open
Abstract
Pancreatic neuroendocrine tumors (pNETs) are unique, slow-growing malignancies whose molecular pathogenesis is incompletely understood. With rising incidence of pNETs over the last four decades, larger and more comprehensive 'omic' analyses of patient tumors have led to a clearer picture of the pNET genomic landscape and transcriptional profiles for both primary and metastatic lesions. In pNET patients with advanced disease, those insights have guided the use of targeted therapies that inhibit activated mTOR and receptor tyrosine kinase (RTK) pathways or stimulate somatostatin receptor signaling. Such treatments have significantly benefited patients, but intrinsic or acquired drug resistance in the tumors remains a major problem that leaves few to no effective treatment options for advanced cases. This demands a better understanding of essential molecular and biological events underlying pNET growth, metastasis, and drug resistance. This review examines the known molecular alterations associated with pNET pathogenesis, identifying which changes may be drivers of the disease and, as such, relevant therapeutic targets. We also highlight areas that warrant further investigation at the biological level and discuss available model systems for pNET research. The paucity of pNET models has hampered research efforts over the years, although recently developed cell line, animal, patient-derived xenograft, and patient-derived organoid models have significantly expanded the available platforms for pNET investigations. Advancements in pNET research and understanding are expected to guide improved patient treatments.
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Affiliation(s)
- Chandra K. Maharjan
- Department of Neuroscience and Pharmacology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA;
| | - Po Hien Ear
- Department of Surgery, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA; (P.H.E.); (C.G.T.); (J.R.H.)
| | - Catherine G. Tran
- Department of Surgery, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA; (P.H.E.); (C.G.T.); (J.R.H.)
| | - James R. Howe
- Department of Surgery, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA; (P.H.E.); (C.G.T.); (J.R.H.)
| | - Chandrikha Chandrasekharan
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA;
| | - Dawn E. Quelle
- Department of Neuroscience and Pharmacology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA;
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, IA 52242, USA
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3
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Das S, Dasari A. Novel therapeutics for patients with well-differentiated gastroenteropancreatic neuroendocrine tumors. Ther Adv Med Oncol 2021; 13:17588359211018047. [PMID: 34093744 PMCID: PMC8141991 DOI: 10.1177/17588359211018047] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 04/23/2021] [Indexed: 02/06/2023] Open
Abstract
Gastroenteropancreatic (GEP) neuroendocrine tumors (NETs) represent the most common subtype of NETs. The incidence of all NETs, and specifically GEP NETs, has risen exponentially over the last three decades. Only within the past several years have these tumors been appropriately classified, allowing for meaningful drug development. Broadly, some of the most exciting drug classes being developed for patients with well-differentiated GEP NETs include newer types of peptide receptor radionuclide therapy (PRRT) or combinations which increase the potency of lutetium-177 (177Lu)-Dotatate, novel multi-target receptor tyrosine kinase inhibitors (RTKIs) and immunotherapy modalities, beyond checkpoint inhibitors, which seek to unleash the immune system against NETs. Specifically looking at newer types of PRRT, somatostatin receptor antagonists and alpha-emitter radionuclides each have demonstrated the ability to elicit greater DNA damage than 177Lu-Dotatate in preclinical models. Early clinical experiences with each of these agents suggest they may be more cytotoxic than 177Lu-Dotatate. Other approaches seeking to build upon the DNA damage created by 177Lu-Dotatate include combinations of PRRT with radiosensitizers such as heat shock protein 90 inhibitors, hedgehog inhibitors, chemotherapy combinations, and triapine. Many of these combinations have just begun to be tested clinically. With regards to novel RTKIs, some of the ones which have demonstrated potent cytoreductive potential include cabozantinib and lenvatinib. Other RTKIs which are further along the clinical development spectrum and have demonstrated benefit in randomized trials include surufatinib and pazopanib. And though single-agent immune checkpoint inhibitors have not demonstrated significant anti-tumor activity in patients with GEP NETs, outside of certain biomarker selected subsets, somatostatin receptor-directed chimeric antigen receptor (CAR) T cells and vaccines such as SurVaxM, which targets survivin, represent two means through which NET-directed immunity may be modulated. The potential of these agents, if clinically realized, will likely improve outcomes for patients with well-differentiated GEP NETs.
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Affiliation(s)
- Satya Das
- Division of Hematology and Oncology, Department of Medicine, Vanderbilt University Medical Center, 777 Preston Research Building, 2220 Pierce Avenue, Nashville, TN 37232, USA
| | - Arvind Dasari
- Division of Cancer Medicine, Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA
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Asa SL, La Rosa S, Basturk O, Adsay V, Minnetti M, Grossman AB. Molecular Pathology of Well-Differentiated Gastro-entero-pancreatic Neuroendocrine Tumors. Endocr Pathol 2021; 32:169-191. [PMID: 33459926 DOI: 10.1007/s12022-021-09662-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/03/2021] [Indexed: 12/17/2022]
Abstract
Well differentiated neuroendocrine tumors (NETs) arising in the gastrointestinal and pancreaticobiliary system are the most common neuroendocrine neoplasms. Studies of the molecular basis of these lesions have identified genetic mutations that predispose to familial endocrine neoplasia syndromes and occur both as germline events and in sporadic tumors. The mutations often involve epigenetic regulators rather than the oncogenes and tumor suppressors that are affected in other malignancies. Somatic copy number alterations and miRNAs have also been implicated in the development and progression of some of these tumors. The molecular profiles differ by location, but many are shared by tumors in other sites, including those outside the gastroenteropancreatic system. The approach to therapy relies on both the neuroendocrine nature of these tumors and the identification of specific alterations that can serve as targets for precision oncologic approaches.
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Affiliation(s)
- Sylvia L Asa
- Department of Pathology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, USA.
| | - Stefano La Rosa
- Institute of Pathology, University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Olca Basturk
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Volkan Adsay
- Department of Pathology and Research Center for Translational Medicine (KUTTAM), Koç University Hospital, Istanbul, Turkey
| | - Marianna Minnetti
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Ashley B Grossman
- Green Templeton College, University of Oxford and ENETS Centre of Excellence, Royal Free Hospital, London, UK
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5
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18F-Radiolabeling and Preliminary Evaluation of a HSP 90 ligand. Eur J Pharm Sci 2021; 157:105647. [PMID: 33221456 DOI: 10.1016/j.ejps.2020.105647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 11/03/2020] [Accepted: 11/11/2020] [Indexed: 11/22/2022]
Abstract
PURPOSE With the ambition of improving the management of pancreatic neuroendocrine tumors (P-NETs), we developed and preliminary validated a novel fluorine-18 labelled HSP90 ligand. METHODS A precursor containing methoxymethyl ethers protecting groups and a tosyl as leaving group was synthesized. The target compound was labeled with nucleophilic 18F-fluoride and the protecting groups was subsequently removed with hydrochloric acid before purification. In vitro cell- and frozen section autoradiography and in vivo animal studies were performed. RESULTS The precursor was successfully synthesized and utilized in the 18F-radiolabeling giving 0.5-1.0 GBq of pure product with a synthesis time of 70 min. In vitro experiments indicated a high specific binding, but in vivo studies showed no tumor uptake due to fast hepatobiliary metabolism and excretion. CONCLUSIONS Despite the unfavorable in vivo properties of the tracer, the promising results from in vitro autoradiography experiments in frozen sections of P-NETs from surgical resection encourage us to continue the project aiming the improvement of in vivo properties of the tracer.
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Rodrigues Moita AJ, Bandolik JJ, Hansen FK, Kurz T, Hamacher A, Kassack MU. Priming with HDAC Inhibitors Sensitizes Ovarian Cancer Cells to Treatment with Cisplatin and HSP90 Inhibitors. Int J Mol Sci 2020; 21:ijms21218300. [PMID: 33167494 PMCID: PMC7663919 DOI: 10.3390/ijms21218300] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 10/29/2020] [Accepted: 11/02/2020] [Indexed: 01/02/2023] Open
Abstract
Ovarian cancer is the fifth leading cause of cancer deaths. Chemoresistance, particularly against platinum compounds, contributes to a poor prognosis. Histone deacetylase inhibitors (HDACi) and heat shock protein 90 inhibitors (HSP90i) are known to modulate pathways involved in chemoresistance. This study investigated the effects of HDACi (panobinostat, LMK235) and HSP90i (luminespib, HSP990) on the potency of cisplatin in ovarian cancer cell lines (A2780, CaOV3, OVCAR3 and cisplatin-resistant sub-clones). Preincubation with HDACi increased the cytotoxic potency of HSP90i, whereas preincubation with HSP90i had no effect. Preincubation with HSP90i or HDACi 48h prior to cisplatin enhanced the cisplatin potency significantly in all cell lines via apoptosis induction and affected the expression of apoptosis-relevant genes and proteins. For CaOV3CisR and A2780CisR, a preincubation with HDACi for 48–72 h led to complete reversal of cisplatin resistance. Furthermore, permanent presence of HDACi in sub-cytotoxic concentrations prevented the development of cisplatin resistance in A2780. However, triple combinations of HDACi, HSP90i and cisplatin were not superior to dual combinations. Overall, priming with HDACi sensitizes ovarian cancer cells to treatment with HSP90i or cisplatin and has an influence on the development of cisplatin resistance, both of which may contribute to an improved ovarian cancer treatment.
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Affiliation(s)
- Ana J. Rodrigues Moita
- Institute for Pharmaceutical and Medicinal Chemistry, University of Duesseldorf, 40225 Duesseldorf, Germany; (A.J.R.M.); (J.J.B.); (T.K.); (A.H.)
| | - Jan J. Bandolik
- Institute for Pharmaceutical and Medicinal Chemistry, University of Duesseldorf, 40225 Duesseldorf, Germany; (A.J.R.M.); (J.J.B.); (T.K.); (A.H.)
| | - Finn K. Hansen
- Pharmaceutical Institute, University of Bonn, 53121 Bonn, Germany;
| | - Thomas Kurz
- Institute for Pharmaceutical and Medicinal Chemistry, University of Duesseldorf, 40225 Duesseldorf, Germany; (A.J.R.M.); (J.J.B.); (T.K.); (A.H.)
| | - Alexandra Hamacher
- Institute for Pharmaceutical and Medicinal Chemistry, University of Duesseldorf, 40225 Duesseldorf, Germany; (A.J.R.M.); (J.J.B.); (T.K.); (A.H.)
| | - Matthias U. Kassack
- Institute for Pharmaceutical and Medicinal Chemistry, University of Duesseldorf, 40225 Duesseldorf, Germany; (A.J.R.M.); (J.J.B.); (T.K.); (A.H.)
- Correspondence:
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7
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Vitali E, Boemi I, Piccini S, Tarantola G, Smiroldo V, Lavezzi E, Brambilla T, Zerbi A, Carnaghi C, Mantovani G, Spada A, Lania AG. A novel insight into the anticancer mechanism of metformin in pancreatic neuroendocrine tumor cells. Mol Cell Endocrinol 2020; 509:110803. [PMID: 32251713 DOI: 10.1016/j.mce.2020.110803] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 03/24/2020] [Accepted: 03/29/2020] [Indexed: 12/12/2022]
Abstract
The antidiabetic drug metformin displays anticancer properties in several neoplasms. In pituitary NETs, aryl hydrocarbon receptor-interacting protein (AIP) is up-regulated by the somatostatin analog octreotide. Metformin inhibited QGP-1 cell proliferation in a dose- and time-dependent manner, at concentrations similar to those achievable in treated patients (-31 ± 12%, p < 0.05 vs basal at 100 μM). Moreover, metformin decreased pancreatic neuroendocrine tumors (PAN-NETs) cell proliferation (-62 ± 15%, p < 0.0001 vs basal at 10 mM), without any additive effect when combined with octreotide. Both octreotide and metformin induced AIP up-regulation. AIP silencing abolished the reduction of mTOR phosphorylation induced by metformin and octreotide. Moreover, metformin decreased HSP70, increased Zac1 and AhR expression; these effects were abolished in AIP silenced QGP-1 cells. In conclusion, metformin acts as an anticancer agent in PAN-NET cells, its activity is mediated by AIP and its interacting proteins. These findings provide a novel insight into the antitumorigenic mechanism of metformin.
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Affiliation(s)
- E Vitali
- Laboratory of Cellular and Molecular Endocrinology, Humanitas Clinical and Research Center - IRCCS, Rozzano, Italy.
| | - I Boemi
- Laboratory of Cellular and Molecular Endocrinology, Humanitas Clinical and Research Center - IRCCS, Rozzano, Italy
| | - S Piccini
- Endocrinology and Diabetology Unit Humanitas Clinical and Research Center - IRCCS, Rozzano, Italy; Department of Biomedical Sciences, Humanitas University, Rozzano, Italy
| | - G Tarantola
- Laboratory of Cellular and Molecular Endocrinology, Humanitas Clinical and Research Center - IRCCS, Rozzano, Italy; Department of Biomedical Sciences, Humanitas University, Rozzano, Italy
| | - V Smiroldo
- Oncology Unit, Humanitas Clinical and Research Center - IRCCS, Rozzano, Italy
| | - E Lavezzi
- Endocrinology and Diabetology Unit Humanitas Clinical and Research Center - IRCCS, Rozzano, Italy
| | - T Brambilla
- Department of Pathology, Humanitas Clinical and Research Center - IRCCS, Rozzano, Italy
| | - A Zerbi
- Pancreas Surgery Unit, Humanitas Clinical and Research Center - IRCCS, Rozzano, Italy
| | - C Carnaghi
- Oncology Unit, Bolzano Hospital, Bolzano, Italy
| | - G Mantovani
- Endocrinology and Diabetology Unit, IRCCS Ospedale Maggiore Policlinico, Milano, Italy
| | - A Spada
- Endocrinology and Diabetology Unit, IRCCS Ospedale Maggiore Policlinico, Milano, Italy
| | - A G Lania
- Laboratory of Cellular and Molecular Endocrinology, Humanitas Clinical and Research Center - IRCCS, Rozzano, Italy; Endocrinology and Diabetology Unit Humanitas Clinical and Research Center - IRCCS, Rozzano, Italy; Department of Biomedical Sciences, Humanitas University, Rozzano, Italy
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New insights into molecular chaperone TRAP1 as a feasible target for future cancer treatments. Life Sci 2020; 254:117737. [PMID: 32376268 DOI: 10.1016/j.lfs.2020.117737] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 04/07/2020] [Accepted: 04/27/2020] [Indexed: 02/06/2023]
Abstract
Tumor necrosis factor receptor-associated protein 1 (TRAP1), a molecular chaperone, is a major member of the mitochondrial heat shock protein 90 (Hsp90) family. Studies have shown that TRAP1 can prevent hypoxia-induced damage to cardiomyocytes, maintain cardiomyocytes viability and mitochondrial membrane potential, and protect cardiomyocytes. In addition, it can also protect astrocytes from ischemic damage in vitro. In recent years, there have been many new discoveries in tumors. The abnormal expression of TRAP1 is closely related to the occurrence and development of various tumors. TRAP1 protein seems to be a central regulatory protein, involved in the activation of various oncogenic proteins and signaling pathways, and has a balanced function at tumor transformation and the intersection of different metabolic processes. Targeting its chaperone activity and molecular interactions can destroy the metabolism and survival adaptability of tumor cells, paving the way for the development of highly selective mitochondrial anti-tumor drugs. Moreover, the combination of TRAP1 inhibition and current traditional cancer therapies has shown promising applications. These findings have important implications for the diagnosis and treatment of tumors. Therefore, we reviewed the recently identified functions of the molecular chaperone TRAP1 in cancer development and progression, as well as the discovery and recent advances in selective TRAP1 inhibitors as anticancer drug therapies, opening up new attractive prospects for exploring strategies for targeting TRAP1 as a tumor cell target.
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Lundsten S, Spiegelberg D, Raval NR, Nestor M. The radiosensitizer Onalespib increases complete remission in 177Lu-DOTATATE-treated mice bearing neuroendocrine tumor xenografts. Eur J Nucl Med Mol Imaging 2020; 47:980-990. [PMID: 31912256 PMCID: PMC7075859 DOI: 10.1007/s00259-019-04673-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 12/26/2019] [Indexed: 12/28/2022]
Abstract
PURPOSE 177Lu-DOTATATE targeting the somatostatin receptor (SSTR) is utilized for treatment of neuroendocrine tumors (NETs). Onalespib, a heat shock protein 90 (HSP90) inhibitor, has demonstrated radiosensitizing properties and may thus enhance the effect of 177Lu-DOTATATE. Consequently, the aim of this study was to assess the potential of Onalespib in combination with 177Lu-DOTATATE in vivo and to examine the toxicity profiles of the treatments. METHODS 177Lu-DOTATATE selectivity and distribution in NET xenografts were studied using biodistribution and autoradiography. Therapeutic effects of Onalespib in combination with 177Lu-DOTATATE were studied in NET xenografts. Histological analyses were used to assess molecular effects from treatment and to establish toxicity profiles. RESULTS Biodistribution and autoradiography confirmed the SSTR-selective tumor uptake of 177Lu-DOTATATE, which was unaffected by Onalespib treatment. Immunohistochemistry verified molecular responses to Onalespib therapy in the tumors. While Onalespib and 177Lu-DOTATATE monotherapies resulted in a 10% and 33% delay in tumor doubling time compared with control, the combination treatment resulted in a 73% delayed tumor doubling time. Moreover, combination treatment increased complete remissions threefold from 177Lu-DOTATATE monotherapy, resulting in 29% complete remissions. In addition, histological analyses demonstrated radiation-induced glomerular injury in the 177Lu-DOTATATE monotherapy group. The damage was decreased tenfold in the combination group, potentially due to Onalespib-induced HSP70 upregulation in the kidneys. CONCLUSION Treatment with Onalespib potentiated 177Lu-DOTATATE therapy of NET xenografts with a favorable toxicity profile. Utilizing Onalespib's radiosensitizing properties with 177Lu-DOTATATE may lead to better therapeutic results in the future and may reduce unwanted side effects in dose-limiting organs.
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Affiliation(s)
- Sara Lundsten
- Department of Immunology, Genetics and Pathology, Uppsala University, The Rudbeck Laboratory, SE-751 85, Uppsala, Sweden
| | - Diana Spiegelberg
- Department of Immunology, Genetics and Pathology, Uppsala University, The Rudbeck Laboratory, SE-751 85, Uppsala, Sweden
- Department of Surgical Sciences, Uppsala University, Uppsala University Hospital, Entrance 70, SE-751 85, Uppsala, Sweden
| | - Nakul R Raval
- Department of Immunology, Genetics and Pathology, Uppsala University, The Rudbeck Laboratory, SE-751 85, Uppsala, Sweden
| | - Marika Nestor
- Department of Immunology, Genetics and Pathology, Uppsala University, The Rudbeck Laboratory, SE-751 85, Uppsala, Sweden.
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Gao C, Peng YN, Wang HZ, Fang SL, Zhang M, Zhao Q, Liu J. Inhibition of Heat Shock Protein 90 as a Novel Platform for the Treatment of Cancer. Curr Pharm Des 2020; 25:849-855. [PMID: 31244417 DOI: 10.2174/1381612825666190503145944] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 04/18/2019] [Indexed: 12/14/2022]
Abstract
Heat shock protein 90 (Hsp90) plays an essential role in various physiological and pathological processes. It activates client proteins to participate in tumor progression. Blocking Hsp90 could enable effective antitumor effects in many tumor types, such as multiple myeloma and colon cancer. Recently, it has motivated an interest in Hsp90 inhibitors that bind to the N-terminal or C-terminal ATP pocket as antitumor drugs. We reviewed the data from experimental and clinical trials on Hsp90 inhibitors in the treatment of different malignancies to explore and summarize their antitumor mechanisms.
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Affiliation(s)
- Chang Gao
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China
| | - Ya-Nan Peng
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China
| | - Hai-Zhou Wang
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China
| | - Shi-Lin Fang
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China
| | - Meng Zhang
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China
| | - Qiu Zhao
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China
| | - Jing Liu
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China.,Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China
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11
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Lundsten S, Spiegelberg D, Stenerlöw B, Nestor M. The HSP90 inhibitor onalespib potentiates 177Lu‑DOTATATE therapy in neuroendocrine tumor cells. Int J Oncol 2019; 55:1287-1295. [PMID: 31638190 PMCID: PMC6831206 DOI: 10.3892/ijo.2019.4888] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 07/19/2019] [Indexed: 02/07/2023] Open
Abstract
177Lu-DOTATATE was recently approved for the treatment of somatostatin receptor (SSTR)-positive neuroen-docrine tumors (NETs). However, despite impressive response rates, complete responses are rare. Heat shock protein 90 (HSP90) inhibitors have been suggested as suitable therapeutic agents for NETs, as well as a potential radiosensitizers. Consequently, the aim of this study was to investigate whether the HSP90-inhibitor onalespib could reduce NET cell growth and act as a radiosensitizer when used in combination with 177Lu-DOTATATE. The NET cell lines BON, NCI-H727 and NCI-H460, were first characterized with regards to 177Lu-DOTATATE uptake and sensitivity to onalespib treatment in monolayer cell assays. The growth inhibitory effects of the monotherapies and combination treatments were then examined in three-dimensional multicellular tumor spheroids. Lastly, the molecular effects of the treatments were assessed. 177Lu-DOTATATE uptake was observed in the BON and NCI-H727 cells, while the NCI-H460 cells exhibited no detectable uptake. Accordingly, 177Lu-DOTATATE reduced the growth of BON and NCI-H727 spheroids, while no effect was observed in the NCI-H460 spheroids. Onalespib reduced cell viability and spheroid growth in all three cell lines. Furthermore, the combination of onalespib and 177Lu-DOTATATE exerted synergistic therapeutic effects on the BON and NCI-H727 spheroids. Western blot analysis of BON spheroids revealed the downregulation of epidermal growth factor receptor (EGFR) and the upregulation of γ H2A histone family member X (γH2AX) following combined treatment with onalespib and 177Lu-DOTATATE. Moreover, flow cytometric analyses revealed a two-fold increase in caspase 3/7 activity in the combination group. In conclusion, the findings of this study demonstrate that onalespib exerts antitumorigenic effects on NET cells and may thus be a feasible treatment option for NETs. Furthermore, onalespib was able to synergistically potentiate 177Lu-DOTATATE treatment in a SSTR-specific manner. The radiosensitizing mechanisms of onalespib involved the downregulation of EGFR expression and the induction of apoptosis. Consequently, the combination of onalespib and 177Lu-DOTATATE may prove to be a promising strategy with which to improve therapeutic responses in patients with NETs. Further studies investigating this strategy in vivo regarding the therapeutic effects and potential toxicities are warranted to expand these promising findings.
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Affiliation(s)
- Sara Lundsten
- Department of Immunology, Genetics and Pathology, Uppsala University, 751 87 Uppsala, Sweden
| | - Diana Spiegelberg
- Department of Immunology, Genetics and Pathology, Uppsala University, 751 87 Uppsala, Sweden
| | - Bo Stenerlöw
- Department of Immunology, Genetics and Pathology, Uppsala University, 751 87 Uppsala, Sweden
| | - Marika Nestor
- Department of Immunology, Genetics and Pathology, Uppsala University, 751 87 Uppsala, Sweden
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12
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Shee K, Wells JD, Ung M, Hampsch RA, Traphagen NA, Yang W, Liu SC, Zeldenrust MA, Wang L, Kalari KR, Yu J, Boughey JC, Demidenko E, Kettenbach AN, Cheng C, Goetz MP, Miller TW. A Transcriptionally Definable Subgroup of Triple-Negative Breast and Ovarian Cancer Samples Shows Sensitivity to HSP90 Inhibition. Clin Cancer Res 2019; 26:159-170. [PMID: 31558472 DOI: 10.1158/1078-0432.ccr-18-2213] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 08/05/2019] [Accepted: 09/23/2019] [Indexed: 02/06/2023]
Abstract
PURPOSE We hypothesized that integrated analysis of cancer types from different lineages would reveal novel molecularly defined subgroups with unique therapeutic vulnerabilities. On the basis of the molecular similarities between subgroups of breast and ovarian cancers, we analyzed these cancers as a single cohort to test our hypothesis. EXPERIMENTAL DESIGN Identification of transcriptional subgroups of cancers and drug sensitivity analyses were performed using mined data. Cell line sensitivity to Hsp90 inhibitors (Hsp90i) was tested in vitro. The ability of a transcriptional signature to predict Hsp90i sensitivity was validated using cell lines, and cell line- and patient-derived xenograft (PDX) models. Mechanisms of Hsp90i sensitivity were uncovered using immunoblot and RNAi. RESULTS Transcriptomic analyses of breast and ovarian cancer cell lines uncovered two mixed subgroups comprised primarily of triple-negative breast and multiple ovarian cancer subtypes. Drug sensitivity analyses revealed that cells of one mixed subgroup are significantly more sensitive to Hsp90i compared with cells from all other cancer lineages evaluated. A gene expression classifier was generated that predicted Hsp90i sensitivity in vitro, and in cell line- and PDXs. Cells from the Hsp90i-sensitive subgroup underwent apoptosis mediated by Hsp90i-induced upregulation of the proapoptotic proteins Bim and PUMA. CONCLUSIONS Our findings identify Hsp90i as a potential therapeutic strategy for a transcriptionally defined subgroup of ovarian and breast cancers. This study demonstrates that gene expression profiles may be useful to identify therapeutic vulnerabilities in tumor types with limited targetable genetic alterations, and to identify molecularly definable cancer subgroups that transcend lineage.
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Affiliation(s)
- Kevin Shee
- Department of Molecular & Systems Biology, Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire
| | - Jason D Wells
- Department of Molecular & Systems Biology, Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire
| | - Matthew Ung
- Department of Biomedical Data Sciences, Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire
| | - Riley A Hampsch
- Department of Molecular & Systems Biology, Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire
| | - Nicole A Traphagen
- Department of Molecular & Systems Biology, Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire
| | - Wei Yang
- Department of Molecular & Systems Biology, Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire
| | - Stephanie C Liu
- Department of Molecular & Systems Biology, Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire
| | | | - Liewei Wang
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota
| | - Krishna R Kalari
- Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota
| | - Jia Yu
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota
| | - Judy C Boughey
- Department of Surgery, Mayo Clinic, Rochester, Minnesota
| | - Eugene Demidenko
- Department of Community and Family Medicine, Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire
| | - Arminja N Kettenbach
- Department of Biochemistry, and Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire
| | - Chao Cheng
- Department of Biomedical Data Sciences, Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire
| | - Matthew P Goetz
- Department of Oncology, Mayo Clinic, Rochester, Minnesota.,Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, Minnesota
| | - Todd W Miller
- Department of Molecular & Systems Biology, Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire. .,Comprehensive Breast Program, Norris Cotton Cancer Center, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire
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13
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Xue N, Lai F, Du T, Ji M, Liu D, Yan C, Zhang S, Yu X, Jin J, Chen X. Chaperone-mediated autophagy degradation of IGF-1Rβ induced by NVP-AUY922 in pancreatic cancer. Cell Mol Life Sci 2019; 76:3433-3447. [PMID: 30980109 PMCID: PMC11105470 DOI: 10.1007/s00018-019-03080-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 03/04/2019] [Accepted: 03/18/2019] [Indexed: 11/26/2022]
Abstract
Enhancement of insulin-like growth factor 1 receptor (IGF-IR) degradation by heat shock protein 90 (HSP90) inhibitor is a potential antitumor therapeutic strategy. However, very little is known about how IGF-IR protein levels are degraded by HSP90 inhibitors in pancreatic cancer (PC). We found that the HSP90α inhibitor NVP-AUY922 (922) effectively downregulated and destabilized the IGF-1Rβ protein, substantially reduced the levels of downstream signaling molecules (p-AKT, AKT and p-ERK1/2), and resulted in growth inhibition and apoptosis in IGF-1Rβ-overexpressing PC cells. Preincubation with a proteasome or lysosome inhibitor (MG132, 3 MA or CQ) mainly led to IGF-1Rβ degradation via the lysosome degradation pathway, rather than the proteasome-dependent pathway, after PC cells were treated with 922 for 24 h. These results might be associated with the inhibition of pancreatic cellular chymotrypsin-peptidase activity by 922 for 24 h. Interestingly, 922 induced autophagic flux by increasing LC3II expression and puncta formation. However, knockdown of the crucial autophagy component AGT5 and the chemical inhibitor 3 MA-blocked 922-induced autophagy did not abrogate 922-triggered IGF-1Rβ degradation. Furthermore, 922 could enhance chaperone-mediated autophagy (CMA) activity and promote the association between HSP/HSC70 and IGF-1Rβ or LAMP2A in coimmunoprecipitation and immunofluorescence analyses. Silencing of LAMP2A to inhibit CMA activity reversed 922-induced IGF-1Rβ degradation, suggesting that IGF-1Rβ degradation by 922 was partially dependent on the CMA pathway rather than macroautophagy. This finding is mirrored by the identification of the KFERQ-like motif in IGF-1Rβ. These observations support the potential application of 922 for IGF-1Rβ-overexpressing PC therapy and first identify the role of the CMA pathway in IGF-1Rβ degradation by an HSP90 inhibitor.
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Affiliation(s)
- Nina Xue
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Institute of Materia Medica, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100050, China
| | - Fangfang Lai
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Institute of Materia Medica, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100050, China
| | - Tingting Du
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Institute of Materia Medica, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100050, China
| | - Ming Ji
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Institute of Materia Medica, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100050, China
| | - Di Liu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Institute of Materia Medica, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100050, China
| | - Chunhong Yan
- Georgia Cancer Center, Augusta University, Augusta, GA, 30912, USA
| | - Sen Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Institute of Materia Medica, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100050, China
| | - Xiaoming Yu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Institute of Materia Medica, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100050, China
| | - Jing Jin
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Institute of Materia Medica, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100050, China.
| | - Xiaoguang Chen
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of Non-Clinical Drug Metabolism and PK/PD Study, Institute of Materia Medica, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, 100050, China.
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14
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Moris D, Ntanasis-Stathopoulos I, Tsilimigras DI, Adam MA, Yang CFJ, Harpole D, Theocharis S. Insights into Novel Prognostic and Possible Predictive Biomarkers of Lung Neuroendocrine Tumors. Cancer Genomics Proteomics 2018; 15:153-163. [PMID: 29496694 DOI: 10.21873/cgp.20073] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Revised: 12/01/2017] [Accepted: 12/05/2017] [Indexed: 01/04/2023] Open
Abstract
Primary lung neuroendocrine tumors (NETs) consist of typical and atypical carcinoids, large-cell neuroendocrine carcinomas and small-cell lung carcinomas. NETs are highly heterogeneous in histological characteristics, clinical presentation and natural history. While there are morphological and immunohistochemical criteria to establish diagnosis, there is a lack of universal consensus for prognostic factors or therapeutic targets for personalized treatment of the disease. Thus, identifying potential markers of neuroendocrine differentiation and prognostic factors remains of high importance. This review provides an insight into promising molecules and genes that are implicated in NET carcinogenesis, cell-cycle regulation, chromatin remodeling, apoptosis, intracellular cascades and cell-cell interactions. Additionally it supports a basis for classifying these tumors into categories that distinct molecular characteristics and disease natural history, which may have a direct impact on treatment options. In light of the recent approval of everolimus, mammalian target of rapamycin pathway inhibition and related biomarkers may play a central role in the treatment of pulmonary NETs. Future clinical trials that integrate molecular profiling are deemed necessary in order to treat patients with NET on a personalized basis.
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Affiliation(s)
| | - Ioannis Ntanasis-Stathopoulos
- Department of Clinical Therapeutics, Alexandra General Hospital, National and Kapodistrian University of Athens, Athens, Greece
| | - Diamantis I Tsilimigras
- First Department of Pathology, National and Kapodistrian University of Athens, Athens, Greece
| | - Mohamad A Adam
- Department of Surgery, Duke University, Durham, NC, U.S.A
| | | | - David Harpole
- Department of Surgery, Duke University, Durham, NC, U.S.A
| | - Stamatios Theocharis
- First Department of Pathology, National and Kapodistrian University of Athens, Athens, Greece
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15
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Aristizabal Prada ET, Auernhammer CJ. Targeted therapy of gastroenteropancreatic neuroendocrine tumours: preclinical strategies and future targets. Endocr Connect 2018; 7:R1-R25. [PMID: 29146887 PMCID: PMC5754510 DOI: 10.1530/ec-17-0286] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 11/16/2017] [Indexed: 12/12/2022]
Abstract
Molecular targeted therapy of advanced neuroendocrine tumours (NETs) of the gastroenteropancreatic (GEP) system currently encompasses approved therapy with the mammalian target of rapamycin (mTOR) inhibitor everolimus and the multi-tyrosinkinase inhibitor sunitinib. However, clinical efficacy of these treatment strategies is limited by low objective response rates and limited progression-free survival due to tumour resistance. Further novel strategies for molecular targeted therapy of NETs of the GEP system are needed. This paper reviews preclinical research models and signalling pathways in NETs of the GEP system. Preclinical and early clinical data on putative novel targets for molecular targeted therapy of NETs of the GEP system are discussed, including PI3K, Akt, mTORC1/mTORC2, GSK3, c-Met, Ras-Raf-MEK-ERK, embryogenic pathways (Hedgehog, Notch, Wnt/beta-catenin, TGF-beta signalling and SMAD proteins), tumour suppressors and cell cycle regulators (p53, cyclin-dependent kinases (CDKs) CDK4/6, CDK inhibitor p27, retinoblastoma protein (Rb)), heat shock protein HSP90, Aurora kinase, Src kinase family, focal adhesion kinase and epigenetic modulation by histone deacetylase inhibitors.
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Affiliation(s)
- E T Aristizabal Prada
- Department of Internal Medicine IVCampus Grosshadern, University-Hospital, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - C J Auernhammer
- Department of Internal Medicine IVCampus Grosshadern, University-Hospital, Ludwig-Maximilians-University of Munich, Munich, Germany
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16
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Lettini G, Maddalena F, Sisinni L, Condelli V, Matassa DS, Costi MP, Simoni D, Esposito F, Landriscina M. TRAP1: a viable therapeutic target for future cancer treatments? Expert Opin Ther Targets 2017; 21:805-815. [PMID: 28664757 DOI: 10.1080/14728222.2017.1349755] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION HSP90 molecular chaperones (i.e., HSP90α, HSP90β, GRP94 and TRAP1) are potential therapeutic targets to design novel anticancer agents. However, despite numerous designed HSP90 inhibitors, most of them have failed due to unfavorable toxicity profiles and lack of specificity toward different HSP90 paralogs. Indeed, a major limitation in this field is the high structural homology between different HSP90 chaperones, which significantly limits our capacity to design paralog-specific inhibitors. Area covered: This review examines the relevance of TRAP1 in tumor development and progression, with an emphasis on its oncogenic/oncosuppressive role in specific human malignancies and its multifaceted and context-dependent functions in cancer cells. Herein, we discuss the rationale for considering TRAP1 as a potential molecular target and the strategies used to date, to achieve its compartmentalized inhibition directly in mitochondria. Expert opinion: TRAP1 targeting may represent a promising strategy for cancer therapy, based on the increasing and compelling evidence supporting TRAP1 involvement in human carcinogenesis. However, considering the complexity of TRAP1 biology, future strategies of drug discovery need to improve selectivity and specificity toward TRAP1 respect to other HSP90 paralogs. The characterization of specific human malignancies suitable for TRAP1 targeting is also mandatory.
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Affiliation(s)
- Giacomo Lettini
- a Laboratory of Pre-Clinical and Translational Research , IRCCS, Referral Cancer Center of Basilicata , Rionero in Vulture , Italy
| | - Francesca Maddalena
- a Laboratory of Pre-Clinical and Translational Research , IRCCS, Referral Cancer Center of Basilicata , Rionero in Vulture , Italy
| | - Lorenza Sisinni
- a Laboratory of Pre-Clinical and Translational Research , IRCCS, Referral Cancer Center of Basilicata , Rionero in Vulture , Italy
| | - Valentina Condelli
- a Laboratory of Pre-Clinical and Translational Research , IRCCS, Referral Cancer Center of Basilicata , Rionero in Vulture , Italy
| | - Danilo Swann Matassa
- b Department of Molecular Medicine and Medical Biotechnology , University of Naples Federico II , Napoli , Italy
| | - Maria Paola Costi
- c Department of Life Sciences , University of Modena and Reggio Emilia , Modena , Italy
| | - Daniele Simoni
- d Department of Chemical and Pharmaceutical Sciences , University of Ferrara , Ferrara , Italy
| | - Franca Esposito
- b Department of Molecular Medicine and Medical Biotechnology , University of Naples Federico II , Napoli , Italy
| | - Matteo Landriscina
- a Laboratory of Pre-Clinical and Translational Research , IRCCS, Referral Cancer Center of Basilicata , Rionero in Vulture , Italy.,e Medical Oncology Unit, Department of Medical and Surgical Sciences , University of Foggia , Foggia , Italy
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17
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Lee SL, Dempsey-Hibbert NC, Vimalachandran D, Wardle TD, Sutton PA, Williams JHH. Re-examining HSPC1 inhibitors. Cell Stress Chaperones 2017; 22:293-306. [PMID: 28255900 PMCID: PMC5352602 DOI: 10.1007/s12192-017-0774-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 02/03/2017] [Accepted: 02/03/2017] [Indexed: 12/20/2022] Open
Abstract
HSPC1 is a critical protein in cancer development and progression, including colorectal cancer (CRC). However, clinical trial data reporting the effectiveness of HSPC1 inhibitors on several cancer types has not been as successful as predicted. Furthermore, some N-terminal inhibitors appear to be much more successful than others despite similar underlying mechanisms. This study involved the application of three N-terminal HSPC1 inhibitors, 17-DMAG, NVP-AUY922 and NVP-HSP990 on CRC cells. The effects on client protein levels over time were examined. HSPC1 inhibitors were also applied in combination with chemotherapeutic agents commonly used in CRC treatment (5-fluorouracil, oxaliplatin and irinotecan). As HSPA1A and HSPB1 have anti-apoptotic activity, gene-silencing techniques were employed to investigate the significance of these proteins in HSPC1 inhibitor and chemotherapeutic agent resistance. When comparing the action of the three HSPC1 inhibitors, there are distinct differences in the time course of important client protein degradation events. The differences between HSPC1 inhibitors were also reflected in combination treatment-17-DMAG was more effective compared with NVP-AUY922 in potentiating the cytotoxic effects of 5-fluorouracil, oxaliplatin and irinotecan. This study concludes that there are distinct differences between N-terminal HSPC1 inhibitors, despite their common mode of action. Although treatment with each of the inhibitors results in significant induction of the anti-apoptotic proteins HSPA1A and HSPB1, sensitivity to HSPC1 inhibitors is not improved by gene silencing of HSPA1A or HSPB1. HSPC1 inhibitors potentiate the cytotoxic effects of chemotherapeutic agents in CRC, and this approach is readily available to enter clinical trials. From a translational point of view, there may be great variability in sensitivity to the inhibitors between individual patients.
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Affiliation(s)
- Sheah Lin Lee
- Chester Centre for Stress Research, Institute of Medicine, University of Chester, Bache Hall, CH2 1BR, Chester, UK.
- University Hospital Southampton, Tremona Road, SO16 6YD, Southampton, UK.
| | - Nina Claire Dempsey-Hibbert
- Chester Centre for Stress Research, Institute of Medicine, University of Chester, Bache Hall, CH2 1BR, Chester, UK
- Centre for Biomedicine Research, Manchester Metropolitan University, Chester Street, M1 5GD, Manchester, UK
| | | | | | - Paul A Sutton
- Countess of Chester Hospital, Liverpool Rd, CH2 1UL, Chester, UK
| | - John H H Williams
- Chester Centre for Stress Research, Institute of Medicine, University of Chester, Bache Hall, CH2 1BR, Chester, UK
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18
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A Homogeneous Polysaccharide from Fructus Schisandra chinensis (Turz.) Baill Induces Mitochondrial Apoptosis through the Hsp90/AKT Signalling Pathway in HepG2 Cells. Int J Mol Sci 2016; 17:ijms17071015. [PMID: 27367669 PMCID: PMC4964391 DOI: 10.3390/ijms17071015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 06/10/2016] [Accepted: 06/17/2016] [Indexed: 02/07/2023] Open
Abstract
According to the potential anti-hepatoma therapeutic effect of Schisandra chinensis polysaccharides presented in previous studies, a bioactive constituent, homogeneous Schisandra chinensis polysaccharide-0-1 (SCP-0-1), molecular weight (MW) circa 69.980 kDa, was isolated and purified. We assessed the efficacy of SCP-0-1 against human hepatocellular liver carcinoma (HepG2) cells to investigate the effects of its antitumour activity and molecular mechanisms. Anticancer activity was evaluated using microscopy, 3-[4,5-dimethyl-2-thiazolyl]-2,5-diphenyltetrazolium bromide (MTT) assay, Hoechst 33258 staining, acridine orange (AO) staining, flow cytometry (FCM), and cell-cycle analysis. SCP-0-1 inhibited the HepG2 cells’ growth via inducing apoptosis and second gap/mitosis (G2/M) arrest dose-dependently, with a half maximal inhibitory concentration (IC50) value of 479.63 µg/mL. Western blotting of key proteins revealed the apoptotic and autophagic potential of SCP-0-1. Besides, SCP-0-1 upregulated Bcl-2 Associated X Protein (Bax) and downregulated B-cell leukemia/lymphoma 2 (Bcl-2) in the HepG2 cells. The expression of caspase-3, -8, and -9; poly (ADP-ribose) polymerase (PARP); cytochrome c (Cyt C); tumor protein 53 (p53); survivin; sequestosome 1 (p62); microtubule-associated protein 1 light chain-3B (LC3B); mitogen-activated protein kinase p38 (p38); extracellular regulated protein kinases (ERK); c-Jun N-terminal kinase (JNK); protein kinase B (AKT); and heat shock protein 90 (Hsp90) were evaluated using Western blotting. Our findings demonstrate a novel mechanism through which SCP-0-1 exerts its antiproliferative activity and induces mitochondrial apoptosis rather than autophagy. The induction of mitochondrial apoptosis was attributed to the inhibition of the Hsp90/AKT signalling pathway in an extracellular signal-regulated kinase-independent manner. The results also provide initial evidence on a molecular basis that SCP-0-1 can be used as an anti-hepatocellular carcinoma therapeutic agent in the future.
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19
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Gild ML, Bullock M, Pon CK, Robinson BG, Clifton-Bligh RJ. Destabilizing RET in targeted treatment of thyroid cancers. Endocr Connect 2016; 5:10-9. [PMID: 26574568 PMCID: PMC4674629 DOI: 10.1530/ec-15-0098] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 11/16/2015] [Indexed: 01/01/2023]
Abstract
Metastatic differentiated thyroid cancers (DTC) are resistant to traditional chemotherapy. Kinase inhibitors have shown promise in patients with progressive DTC, but dose-limiting toxicity is commonplace. HSP90 regulates protein degradation of several growth-mediating kinases such as RET, and we hypothesized that HSP90 inhibitor (AUY922) could inhibit RET-mediated medullary thyroid cancer (MTC) as well as papillary thyroid cancer (PTC) cell growth and also radioactive iodine uptake by PTC cells. Studies utilized MTC cell lines TT (C634W) and MZ-CRC-1 (M918T) and the PTC cell line TPC-1 (RET/PTC1). Cell viability was assessed with MTS assays and apoptosis by flow cytometry. Signaling target expression was determined by western blot and radioiodine uptake measured with a gamma counter. Prolonged treatment of both MTC cell lines with AUY922 simultaneously inhibited both MAPK and mTOR pathways and significantly induced apoptosis (58.7 and 78.7% reduction in MZ-CRC-1 and TT live cells respectively, following 1 μM AUY922; P<0.02). Similarly in the PTC cell line, growth and signaling targets were inhibited, and also a 2.84-fold increase in radioiodine uptake was observed following AUY922 administration (P=0.015). AUY922 demonstrates in vitro activity against MTC and PTC cell lines. We observed a potent dose-dependent increase in apoptosis in MTC cell lines following drug administration confirming its anti-tumorigenic effects. Western blots confirm inhibition of pro-survival proteins including AKT suggesting this as the mechanism of cell death. In a functional study, we observed an increase in radioiodine uptake in the PTC cell line following AUY922 treatment. We believe HSP90 inhibition could be a viable alternative for treatment of RET-driven chemo-resistant thyroid cancers.
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Affiliation(s)
- M L Gild
- Cancer Genetics LaboratoryKolling Institute of Medical Research, Sydney, New South Wales, AustraliaDepartment of EndocrinologyRoyal North Shore Hospital, The University of Sydney, Sydney, New South Wales 2065, Australia
| | - M Bullock
- Cancer Genetics LaboratoryKolling Institute of Medical Research, Sydney, New South Wales, AustraliaDepartment of EndocrinologyRoyal North Shore Hospital, The University of Sydney, Sydney, New South Wales 2065, Australia
| | - C K Pon
- Cancer Genetics LaboratoryKolling Institute of Medical Research, Sydney, New South Wales, AustraliaDepartment of EndocrinologyRoyal North Shore Hospital, The University of Sydney, Sydney, New South Wales 2065, Australia
| | - B G Robinson
- Cancer Genetics LaboratoryKolling Institute of Medical Research, Sydney, New South Wales, AustraliaDepartment of EndocrinologyRoyal North Shore Hospital, The University of Sydney, Sydney, New South Wales 2065, Australia Cancer Genetics LaboratoryKolling Institute of Medical Research, Sydney, New South Wales, AustraliaDepartment of EndocrinologyRoyal North Shore Hospital, The University of Sydney, Sydney, New South Wales 2065, Australia
| | - R J Clifton-Bligh
- Cancer Genetics LaboratoryKolling Institute of Medical Research, Sydney, New South Wales, AustraliaDepartment of EndocrinologyRoyal North Shore Hospital, The University of Sydney, Sydney, New South Wales 2065, Australia Cancer Genetics LaboratoryKolling Institute of Medical Research, Sydney, New South Wales, AustraliaDepartment of EndocrinologyRoyal North Shore Hospital, The University of Sydney, Sydney, New South Wales 2065, Australia
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20
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Steinmann S, Gali-Muhtasib H, Huebner K, Al-Halabi R, Abou Merhi R, Aman P, Agaimy A, Haller F, Schneider-Stock R. Hsp90 inhibition by AUY922 as an effective treatment strategy against myxoid liposarcoma. Cancer Lett 2015. [PMID: 26225840 DOI: 10.1016/j.canlet.2015.07.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Liposarcoma is one of the most common soft tissue sarcomas in adults. Recognized histological subtypes include well differentiated/dedifferentiated liposarcoma (WD/DDLS), myxoid liposarcoma (MLS) and pleomorphic liposarcoma. Currently, there are no proper subtype-specific treatments due to the genetic, histological and clinical heterogeneity of the liposarcoma subentities. In the past decade, the rising understanding of the various genetic and molecular aberrations in liposarcoma led to the development of novel alternative therapeutic strategies. One such therapy is the inhibition of the heat shock protein 90 (Hsp90) which is overexpressed in liposarcomas. In this study, we dissect the functional role of a novel potent Hsp90 inhibitor NVP-AUY922 (AUY922) in different cell lines of myxoid (MLS402, MLS1765) and undifferentiated (SW872) liposarcomas. We show that compared with 17-AAG treatment, lower concentrations of AUY922 achieve markedly cytotoxic effects on tumor cell viability. Combination treatment of AUY922 (20 nM) with Doxorubicin (300 nM) yielded a further reduction in cell viability in comparison to Doxorubicin alone. In vivo, we document an inhibition of tumor growth after AUY922 treatment. Further analyses revealed that Hsp90-inhibition induces apoptotic cell death and cell cycle arrest. In addition, we report striking perturbations of subtype-specific pattern in Raf/MEK/ERK and PI3K signaling after AUY922 application. In conclusion, our results provide evidence that Hsp90-inhibition by AUY922 may be a promising alternative therapeutic strategy for myxoid liposarcoma patients.
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Affiliation(s)
- Sara Steinmann
- Experimental Tumor Pathology, University Hospital Erlangen of Friedrich-Alexander University Erlangen-Nuremberg, Universitaetsstrasse 22, 91054 Erlangen, Germany; Institute of Pathology, University Hospital Erlangen of Friedrich-Alexander University Erlangen-Nuremberg, Krankenhausstr. 8-10, 91054 Erlangen, Germany
| | | | - Kerstin Huebner
- Experimental Tumor Pathology, University Hospital Erlangen of Friedrich-Alexander University Erlangen-Nuremberg, Universitaetsstrasse 22, 91054 Erlangen, Germany; Institute of Pathology, University Hospital Erlangen of Friedrich-Alexander University Erlangen-Nuremberg, Krankenhausstr. 8-10, 91054 Erlangen, Germany
| | - Racha Al-Halabi
- Genomic and Health Laboratory, Faculty of Sciences, R. Hariri Campus, Lebanese University, Hadath, Lebanon
| | - Raghida Abou Merhi
- Genomic and Health Laboratory, Faculty of Sciences, R. Hariri Campus, Lebanese University, Hadath, Lebanon
| | - Pierre Aman
- Sahlgrenska Cancer Center, Department of Pathology, Institute of Biomedicine, University of Gothenburg, 40530 Gothenburg, Sweden
| | - Abbas Agaimy
- Institute of Pathology, University Hospital Erlangen of Friedrich-Alexander University Erlangen-Nuremberg, Krankenhausstr. 8-10, 91054 Erlangen, Germany
| | - Florian Haller
- Institute of Pathology, University Hospital Erlangen of Friedrich-Alexander University Erlangen-Nuremberg, Krankenhausstr. 8-10, 91054 Erlangen, Germany
| | - Regine Schneider-Stock
- Experimental Tumor Pathology, University Hospital Erlangen of Friedrich-Alexander University Erlangen-Nuremberg, Universitaetsstrasse 22, 91054 Erlangen, Germany; Institute of Pathology, University Hospital Erlangen of Friedrich-Alexander University Erlangen-Nuremberg, Krankenhausstr. 8-10, 91054 Erlangen, Germany.
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21
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Fontaine SN, Martin MD, Akoury E, Assimon VA, Borysov S, Nordhues BA, Sabbagh JJ, Cockman M, Gestwicki JE, Zweckstetter M, Dickey CA. The active Hsc70/tau complex can be exploited to enhance tau turnover without damaging microtubule dynamics. Hum Mol Genet 2015; 24:3971-81. [PMID: 25882706 DOI: 10.1093/hmg/ddv135] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 04/13/2015] [Indexed: 11/12/2022] Open
Abstract
The pathological accumulation of abnormally hyperphosphorylated and aggregated tau, a neuronal microtubule (MT)-associated protein that functions to maintain MT stability, is implicated in a number of hereditary and sporadic neurodegenerative diseases including frontotemporal dementia and Alzheimer's disease. Targeting tau for the treatment of these diseases is an area of intense interest and toward that end, modulation of cellular molecular chaperones is a potential therapeutic target. In particular, the constitutive Hsp70 isoform, Hsc70, seems highly interconnected with tau, preserving tau protein levels and synergizing with it to assemble MTs. But the relationship between tau and Hsc70, as well as the impact of this interaction in neurons and its therapeutic implications remain unknown. Using a human dominant negative Hsc70 that resembles isoform selective inhibition of this important chaperone, we found for the first time that Hsc70 activity is required to stimulate MT assembly in cells and brain. However, surprisingly, active Hsc70 also requires active tau to regulate MT assembly in vivo, suggesting that tau acts in some ways as a co-chaperone for Hsc70 to coordinate MT assembly. This was despite tau binding to Hsc70 as substrate, as determined biochemically. Moreover, we show that while chronic Hsc70 inhibition damaged MT dynamics, intermittent treatment with a small molecule Hsp70 inhibitor lowered tau in brain tissue without disrupting MT integrity. Thus, in tauopathies, where MT injury would be detrimental to neurons, the unique relationship of tau with the Hsc70 machinery can be exploited to deplete tau levels without damaging MT networks.
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Affiliation(s)
- Sarah N Fontaine
- Department of Molecular Medicine, College of Medicine, Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613, USA, James A. Haley Veteran's Hospital, 13000 Bruce B. Downs Blvd, Tampa, FL 33612, USA
| | - Mackenzie D Martin
- Department of Molecular Medicine, College of Medicine, Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613, USA
| | - Elias Akoury
- Department for NMR-Based Structural Biology, Max Planck Institute for Biophysical Chemistry, Göttingen 37077, Germany, German Center for Neurodegenerative Diseases (DZNE), Göttingen 37077, Germany, Center for Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), University Medical Center, Göttingen 37073, Germany and
| | - Victoria A Assimon
- Institute for Neurodegenerative Disease, University of California at San Francisco, San Francisco, CA 94158, USA
| | - Sergiy Borysov
- Department of Molecular Medicine, College of Medicine, Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613, USA
| | - Bryce A Nordhues
- Department of Molecular Medicine, College of Medicine, Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613, USA, James A. Haley Veteran's Hospital, 13000 Bruce B. Downs Blvd, Tampa, FL 33612, USA
| | - Jonathan J Sabbagh
- Department of Molecular Medicine, College of Medicine, Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613, USA, James A. Haley Veteran's Hospital, 13000 Bruce B. Downs Blvd, Tampa, FL 33612, USA
| | - Matt Cockman
- Department of Molecular Medicine, College of Medicine, Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613, USA
| | - Jason E Gestwicki
- Institute for Neurodegenerative Disease, University of California at San Francisco, San Francisco, CA 94158, USA
| | - Markus Zweckstetter
- Department for NMR-Based Structural Biology, Max Planck Institute for Biophysical Chemistry, Göttingen 37077, Germany, German Center for Neurodegenerative Diseases (DZNE), Göttingen 37077, Germany, Center for Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), University Medical Center, Göttingen 37073, Germany and
| | - Chad A Dickey
- Department of Molecular Medicine, College of Medicine, Byrd Alzheimer's Institute, University of South Florida, Tampa, FL 33613, USA, James A. Haley Veteran's Hospital, 13000 Bruce B. Downs Blvd, Tampa, FL 33612, USA,
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22
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Chiang NJ, Wu SN, Chen LT. The potent activation of Ca2+-activated K+ current by NVP-AUY922 in the human pancreatic duct cell line (PANC-1) possibly independent of heat shock protein 90 inhibition. J Pharmacol Sci 2015; 127:404-13. [DOI: 10.1016/j.jphs.2015.02.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 02/02/2015] [Accepted: 02/12/2015] [Indexed: 12/20/2022] Open
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23
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Zare N, Motamedi F, Digaleh H, Khodagholi F, Maghsoudi N. Collaboration of geldanamycin-activated P70S6K and Hsp70 against beta-amyloid-induced hippocampal apoptosis: an approach to long-term memory and learning. Cell Stress Chaperones 2015; 20:309-19. [PMID: 25576151 PMCID: PMC4326392 DOI: 10.1007/s12192-014-0550-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 10/08/2014] [Accepted: 10/13/2014] [Indexed: 10/24/2022] Open
Abstract
One of the neuropathological hallmarks of Alzheimer's disease (AD) is the accumulation of beta-amyloid peptides (Aβ) in senile plaques. Aβ-induced oxidative stress is believed to be responsible for degeneration and apoptosis of neurons and consequent cognitive and memory deficits. Here, we investigated the possible neuroprotective effect of the heat shock protein 90 (Hsp90) inhibitor geldanamycin (GA) against amyloid pathogenesis in adult male Wistar rats. GA or vehicle was injected into the lateral cerebral ventricles of rats 24 h before injection of Aβ (1-42) in CA1 area of hippocampus. The learning and memory of the rats were assessed 7 days after injection of Aβ using passive avoidance (PA) task. As potential contributing factors in Aβ-induced memory decline, we evaluated apoptotic markers and also used terminal-transferase UTP nick end labeling (TUNEL) technique to detect apoptosis in the hippocampus of Aβ-injected rats. Our behavioral data suggest that GA pretreatment can significantly suppress memory deficits in Aβ-injected rats. There was also not only a marked increase in Hsp70 level but also upregulated 70 kDa ribosomal protein S6 kinase (p70S6K) in the hippocampus of GA-treated groups with a reduction in apoptotic factors including caspase-3, poly (ADP-ribose) polymerase, Bax/Bcl-2 ratio, and TUNEL-positive cells as well. Thus, we conclude that GA exerts its protective effects against Aβ (1-42) toxicity and memory deficits, at least in part, by upregulating of Hsp70 and P70S6K.
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Affiliation(s)
- Nayereh Zare
- />NeuroBiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- />Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fereshteh Motamedi
- />NeuroBiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- />Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hadi Digaleh
- />NeuroBiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- />Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fariba Khodagholi
- />NeuroBiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- />Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nader Maghsoudi
- />NeuroBiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- />Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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24
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Spreafico A, Delord JP, De Mattos-Arruda L, Berge Y, Rodon J, Cottura E, Bedard PL, Akimov M, Lu H, Pain S, Kaag A, Siu LL, Cortes J. A first-in-human phase I, dose-escalation, multicentre study of HSP990 administered orally in adult patients with advanced solid malignancies. Br J Cancer 2015; 112:650-9. [PMID: 25625276 PMCID: PMC4333497 DOI: 10.1038/bjc.2014.653] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 11/04/2014] [Accepted: 12/04/2014] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Heat-shock protein 990 (HSP990) is a potent and selective synthetic small-molecule HSP90 inhibitor. The primary objectives of this phase I first-in-human study were to determine dose-limiting toxicities (DLTs), maximum-tolerated dose (MTD) and recommended phase II dose (RP2D). Secondary objectives included characterisation of the safety profile, pharmacokinetics (PKs) and pharmacodynamics (PDs). METHODS Heat-shock protein 990 was administered orally once or two times weekly on a 28-day cycle schedule in patients with advanced solid tumours. Dose escalation was guided by a Bayesian logistic regression model with overdose control. RESULTS A total of 64 patients were enrolled. Fifty-three patients received HSP990 once weekly at 2.5, 5, 10, 20, 30, 50 or 60 mg, whereas 11 patients received HSP990 two times weekly at 25 mg. Median duration of exposure was 8 weeks (range 1-116 weeks) and 12 patients remained on treatment for >16 weeks. Dose-limiting toxicities occurred in seven patients and included diarrhoea, QTc prolongation, ALT/AST elevations and central neurological toxicities. The most common drug-related adverse events were diarrhoea, fatigue and decreased appetite. Further dose escalation beyond 60 mg once weekly was not possible owing to neurological toxicity. Rapid absorption, no drug accumulation and large interpatient variability in PK exposures were observed. No objective responses were seen; 25 patients had a best overall response of stable disease. CONCLUSIONS Heat-shock protein 990 is relatively well tolerated, with neurological toxicity being the most relevant DLT. The single agent MTD/RP2D of HSP990 was declared at 50 mg once weekly.
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Affiliation(s)
- A Spreafico
- Drug Development Program, UHN – Princess Margaret Cancer Centre, Division of Medical Oncology and Hematology, Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - J-P Delord
- Institut Claudius Regaud, Toulouse, France
| | - L De Mattos-Arruda
- Vall d'Hebron University Hospital, Hospital and Universitat Autonoma de Barcelona, Barcelona, Spain
| | - Y Berge
- Institut Claudius Regaud, Toulouse, France
| | - J Rodon
- Vall d'Hebron University Hospital, Hospital and Universitat Autonoma de Barcelona, Barcelona, Spain
| | - E Cottura
- Institut Claudius Regaud, Toulouse, France
| | - P L Bedard
- Drug Development Program, UHN – Princess Margaret Cancer Centre, Division of Medical Oncology and Hematology, Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - M Akimov
- Novartis Pharma AG, Basel, Switzerland
| | - H Lu
- Novartis Pharmaceuticals Corp, East Hanover, NJ, USA
| | - S Pain
- Novartis Pharmaceuticals Corp, East Hanover, NJ, USA
| | - A Kaag
- Novartis Pharma AG, Basel, Switzerland
| | - L L Siu
- Drug Development Program, UHN – Princess Margaret Cancer Centre, Division of Medical Oncology and Hematology, Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - J Cortes
- Vall d'Hebron University Hospital, Hospital and Universitat Autonoma de Barcelona, Barcelona, Spain
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25
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Lee DH, Sung KS, Bartlett DL, Kwon YT, Lee YJ. HSP90 inhibitor NVP-AUY922 enhances TRAIL-induced apoptosis by suppressing the JAK2-STAT3-Mcl-1 signal transduction pathway in colorectal cancer cells. Cell Signal 2014; 27:293-305. [PMID: 25446253 DOI: 10.1016/j.cellsig.2014.11.013] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 10/29/2014] [Accepted: 11/12/2014] [Indexed: 11/17/2022]
Abstract
TRAIL has been shown to induce apoptosis in cancer cells, but in some cases, certain cancer cells are resistant to this ligand. In this study, we explored the ability of representative HSP90 (heat shock protein 90) inhibitor NVP-AUY922 to overcome TRAIL resistance by increasing apoptosis in colorectal cancer (CRC) cells. The combination of TRAIL and NVP-AUY922 induced synergistic cytotoxicity and apoptosis, which was mediated through an increase in caspase activation. The treatment of NVP-AUY922 dephosphorylated JAK2 and STAT3 and decreased Mcl-1, which resulted in facilitating cytochrome c release. NVP-AUY922-mediated inhibition of JAK2/STAT3 signaling and down-regulation of their target gene, Mcl-1, occurred in a dose and time-dependent manner. Knock down of Mcl-1, STAT3 inhibitor or JAK2 inhibitor synergistically enhanced TRAIL-induced apoptosis. Taken together, our results suggest the involvement of the JAK2-STAT3-Mcl-1 signal transduction pathway in response to NVP-AUY922 treatment, which may play a key role in NVP-AUY922-mediated sensitization to TRAIL. By contrast, the effect of the combination treatments in non-transformed colon cells was minimal. We provide a clinical rationale that combining HSP90 inhibitor with TRAIL enhances therapeutic efficacy without increasing normal tissue toxicity in CRC patients.
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Affiliation(s)
- Dae-Hee Lee
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA.
| | - Ki Sa Sung
- Center for Pharmacogenetics and Department of Pharmaceutical Sciences, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, USA; Protein Metabolism Medical Research Center and Department of Biomedical Science, College of Medicine, Seoul National University, Seoul 110-799, Korea
| | - David L Bartlett
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Yong Tae Kwon
- Protein Metabolism Medical Research Center and Department of Biomedical Science, College of Medicine, Seoul National University, Seoul 110-799, Korea
| | - Yong J Lee
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA; Department of Pharmacology and Chemical Biology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
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26
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Wu L, Wang FY, Lu YK, Liu J, Lu H, Liu C, Chen CY, Li N, Tao H. 17-DMAG protects mice from dextran sulphate sodium induced acute ulcerative colitis. Shijie Huaren Xiaohua Zazhi 2014; 22:975-981. [DOI: 10.11569/wcjd.v22.i7.975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the potential effect of alvespimycin [17-(dimethylaminoethylamino)-17-demethoxygeldanamycin hydrochloride, 17-DMAG)], a novel water soluble heat shock protein 90 (HSP90) inhibitor, in the treatment of dextran sulphate sodium (DSS) induced murine ulcerative colitis.
METHODS: C57BL/6 mice were randomly assigned to a normal control group, a colitis model group, a PBS treatment group and a 17-DMAG treatment group. Phosphate buffered solution (PBS) or 17-DMAG was given daily by intraperitoneal injection. Acute ulcerative colitis was induced by administering ad libitum 3%DSS in the drinking water for 5 days. Body weight, diarrhea and bleeding scores were determined daily to calculate the disease activity index. Five days later, the mice were sacrificed and colon tissues were collected. Colon length and weight, histological score of colon injury, and apoptotic index of colon epithelial cells were detected to assess the effects of 17-DMAG on the development of DSS induced colitis.
RESULTS: Mice receiving 3% DSS showed significantly reduced body weight, increased disease activity index, colon weight/length ratio, histological score and apoptotic index of colon epithelial cells, compared with controls. Compared with colitis mice treated with PBS, daily intraperitoneal injection of 17-DMAG for 5 d significantly ameliorated body weight loss (90.9 ± 7.78 vs 81 ± 5.44, P < 0.05), significantly decreased disease activity index (1.8 ± 0.84 vs 4.7 ± 1.21, P < 0.05), colon length and weight (4.43 mg/mL ± 0.16 mg/mL vs 5.71 mg/mL ± 0.56 mg/mL, P < 0.01), and histological score (4.6 ± 1.30 vs 7.4 ± 0.30, P < 0.01). Most importantly, 17-DMAG treated mice showed obviously decreased apoptotic index of colon epithelial cells (33.2 ± 5.50 vs 62.6 ± 9.81, P < 0.01) than PBS treated mice.
CONCLUSION: Daily intraperitoneal injection of 17-DMAG attenuated DSS induced acute murine ulcerative colitis possibly by inhibiting apoptosis of colon epithelial cells.
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