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Haney SL, Feng D, Kollala SS, Chhonker YS, Varney ML, Williams JT, Ford JB, Murry DJ, Holstein SA. Investigation of the activity of a novel tropolone in osteosarcoma. Drug Dev Res 2024; 85:e22129. [PMID: 37961833 PMCID: PMC10922124 DOI: 10.1002/ddr.22129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 10/12/2023] [Accepted: 10/22/2023] [Indexed: 11/15/2023]
Abstract
Osteosarcoma (OS) is a primary malignant bone tumor characterized by frequent metastasis, rapid disease progression, and a high rate of mortality. Treatment options for OS have remained largely unchanged for decades, consisting primarily of cytotoxic chemotherapy and surgery, thus necessitating the urgent need for novel therapies. Tropolones are naturally occurring seven-membered non-benzenoid aromatic compounds that possess antiproliferative effects in a wide array of cancer cell types. MO-OH-Nap is an α-substituted tropolone that has activity as an iron chelator. Here, we demonstrate that MO-OH-Nap activates all three arms of the unfolded protein response (UPR) pathway and induces apoptosis in a panel of human OS cell lines. Co-incubation with ferric chloride or ammonium ferrous sulfate completely prevents the induction of apoptotic and UPR markers in MO-OH-Nap-treated OS cells. MO-OH-Nap upregulates transferrin receptor 1 (TFR1) protein levels, as well as TFR1, divalent metal transporter 1 (DMT1), iron-regulatory proteins (IRP1, IRP2), ferroportin (FPN), and zinc transporter 14 (ZIP14) transcript levels, demonstrating the impact of MO-OH-Nap on iron-homeostasis pathways in OS cells. Furthermore, MO-OH-Nap treatment restricts the migration and invasion of OS cells in vitro. Lastly, metabolomic profiling of MO-OH-Nap-treated OS cells revealed distinct changes in purine and pyrimidine metabolism. Collectively, we demonstrate that MO-OH-Nap-induced cytotoxic effects in OS cells are dependent on the tropolone's ability to alter cellular iron availability and that this agent exploits key metabolic pathways. These studies support further evaluation of MO-OH-Nap as a novel treatment for OS.
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Affiliation(s)
- Staci L. Haney
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE
| | - Dan Feng
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE
| | - Sai Sundeep Kollala
- Department of Genetics, Cell Biology and Anatomy, University of Nebraska Medical Center, Omaha, NE
| | - Yashpal S. Chhonker
- Department of Pharmacy Practice and Science, University of Nebraska Medical Center, Omaha, NE
| | - Michelle L. Varney
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE
| | - Jacob T. Williams
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE
| | - James B. Ford
- Department of Pediatrics, University of Nebraska Medical Center, Omaha, NE
| | - Daryl J. Murry
- Department of Pharmacy Practice and Science, University of Nebraska Medical Center, Omaha, NE
| | - Sarah A. Holstein
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE
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Pal D, Raj K, Nandi SS, Sinha S, Mishra A, Mondal A, Lagoa R, Burcher JT, Bishayee A. Potential of Synthetic and Natural Compounds as Novel Histone Deacetylase Inhibitors for the Treatment of Hematological Malignancies. Cancers (Basel) 2023; 15:2808. [PMID: 37345145 PMCID: PMC10216849 DOI: 10.3390/cancers15102808] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/10/2023] [Accepted: 05/12/2023] [Indexed: 06/23/2023] Open
Abstract
Histone deacetylases (HDACs) and histone acetyltransferases (HATs) are enzymes that remove or add acetyl groups to lysine residues of histones, respectively. Histone deacetylation causes DNA to more snugly encircle histones and decreases gene expression, whereas acetylation has the opposite effect. Through these small alterations in chemical structure, HATs and HDACs regulate DNA expression. Recent research indicates histone deacetylase inhibitors (HDACis) may be used to treat malignancies, including leukemia, B-cell lymphoma, virus-associated tumors, and multiple myeloma. These data suggest that HDACis may boost the production of immune-related molecules, resulting in the growth of CD8-positive T-cells and the recognition of nonreactive tumor cells by the immune system, thereby diminishing tumor immunity. The argument for employing epigenetic drugs in the treatment of acute myeloid leukemia (AML) patients is supported by evidence that both epigenetic changes and mutations in the epigenetic machinery contribute to AML etiology. Although hypomethylating drugs have been licensed for use in AML, additional epigenetic inhibitors, such as HDACis, are now being tested in humans. Preclinical studies evaluating the efficacy of HDACis against AML have shown the ability of specific agents, such as anobinostat, vorinostat, and tricostatin A, to induce growth arrest, apoptosis, autophagy and cell death. However, these inhibitors do not seem to be successful as monotherapies, but instead achieve results when used in conjunction with other medications. In this article, we discuss the mounting evidence that HDACis promote extensive histone acetylation, as well as substantial increases in reactive oxygen species and DNA damage in hematological malignant cells. We also evaluate the potential of various natural product-based HDACis as therapeutic agents to combat hematological malignancies.
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Affiliation(s)
- Dilipkumar Pal
- Department of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur 495 009, India
| | - Khushboo Raj
- Department of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur 495 009, India
| | - Shyam Sundar Nandi
- Department of Biotechnology, Indian Council for Medical Research-National Institute of Virology, Mumbai 400 012, India
| | - Surajit Sinha
- Department of Cancer Biology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | | | - Arijit Mondal
- Department of Pharmaceutical Chemistry, M.R. College of Pharmaceutical Sciences and Research, Balisha 743 234, India
| | - Ricardo Lagoa
- Associate Laboratory in Chemical Engineering, Polytechnic Institute of Leiria, Morro do Lena, Alto do Vieiro, 2411-901 Leiria, Portugal
| | - Jack T. Burcher
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, FL 34211, USA
| | - Anupam Bishayee
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, FL 34211, USA
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Cheng D, Yu C, Pu Y, Xu X. DDQ-mediated oxidative coupling reaction of N,N-dimethyl enaminones with cycloheptatriene. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2021.153609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Mo X, Chen K, Chen Z, Chu B, Liu D, Liang Y, Xiong J, Yang Y, Cai J, Liang F. Antitumor Activities for Two Pt(II) Complexes of Tropolone and 8-Hydroxyquinoline Derivative. Inorg Chem 2021; 60:16128-16139. [PMID: 34647723 DOI: 10.1021/acs.inorgchem.1c01763] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The reactions of cis-Pt(DMSO)2Cl2 and tropolone (HL) with 8-hydroxyquinoline (HQ) or 2-methyl-8-hydroxyquinoline (HMQ) gave [Pt(Q)(L)] (1) and [Pt(MQ)(L)] (2), which present mononuclear structures with their Pt(II) ions four-coordinated in square planar geometries. Their in vitro biological properties were evaluated by MTT assay, which showed a remarkable cytotoxic activity on the cancer cell lines. 1 shows higher cytotoxic activities on tumor cells such as T24, HeLa, A549, and NCI-H460 than complex 2 and cisplatin, with IC50 values <16 μM. Among them, an IC50 value of 3.6 ± 0.63 μM was found for complex 1 against T24 cells. It presented a tuning cytotoxic activity by substitution groups on 8-hydroxyquinoline skeleton. In our case, the substitution groups of -H are much superior to -CH3 against tumor cells. It revealed that both complexes can induce cell apoptosis by decreasing the potential of a mitochondrial membrane, enhancing reactive oxygen species and increasing Ca2+ levels of T24 cells. The T24 cell cycle can be arrested at G2 and G1 phases by complexes 1 and 2, respectively, with an upregulation for P21 and P27 expression levels and a down-regulation for cyclin A, CDK1, Cdc25A, and cyclin B expression levels. Furthermore, complex 1 exhibits satisfactory in vivo antitumor activity as revealed by the tumor inhibitory rate and the tumor weight change as well as by the cute toxicity assay and renal pathological examinations, which is close to cisplatin and much better than complex 2. All of these suggest that 1 might be a potential candidate for developing into a safe and effective anticancer agent.
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Affiliation(s)
- Xiyu Mo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P.R. China
- Department of Food and Chemical Engineering, Liuzhou Institute of Technology, Liuzhou 545616, P.R. China
| | - Kaiyong Chen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P.R. China
| | - Zilu Chen
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P.R. China
| | - Bo Chu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P.R. China
| | - Dongcheng Liu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P.R. China
| | - Yuning Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P.R. China
| | - Jianwen Xiong
- Department of Food and Chemical Engineering, Liuzhou Institute of Technology, Liuzhou 545616, P.R. China
| | - Yubing Yang
- Department of Food and Chemical Engineering, Liuzhou Institute of Technology, Liuzhou 545616, P.R. China
| | - JinYuan Cai
- Department of Food and Chemical Engineering, Liuzhou Institute of Technology, Liuzhou 545616, P.R. China
| | - Fupei Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Collaborative Innovation Center for Guangxi Ethnic Medicine, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, P.R. China
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, P.R. China
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Tropolone-induced effects on the unfolded protein response pathway and apoptosis in multiple myeloma cells are dependent on iron. Leuk Res 2018; 77:17-27. [PMID: 30612055 DOI: 10.1016/j.leukres.2018.12.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 12/07/2018] [Accepted: 12/19/2018] [Indexed: 12/22/2022]
Abstract
Tropolones are naturally occurring seven-membered non-benzenoid aromatic compounds that are of interest due to their cytotoxic properties. MO-OH-Nap is a novel α-substituted tropolone that induces caspase cleavage and upregulates markers associated with the unfolded protein response (UPR) in multiple myeloma (MM) cells. Given previous reports that tropolones may function as iron chelators, we investigated the effects of MO-OH-Nap, as well as the known iron chelator deferoxamine (DFO), in MM cells in the presence or absence of supplemental iron. The ability of MO-OH-Nap to induce apoptosis and upregulate markers of the UPR could be completely prevented by co-incubation with either ferric chloride or ammonium ferrous sulfate. Iron also completely prevented the decrease in BrdU incorporation induced by either DFO or MO-OH-Nap. Ferrozine assays demonstrated that MO-OH-Nap directly chelates iron. Furthermore, MO-OH-Nap upregulates cell surface expression and mRNA levels of transferrin receptor. In vivo studies demonstrate increased Prussian blue staining in hepatosplenic macrophages in MO-OH-Nap-treated mice. These studies demonstrate that MO-OH-Nap-induced cytotoxic effects in MM cells are dependent on the tropolone's ability to alter cellular iron availability and establish new connections between iron homeostasis and the UPR in MM.
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Amin SA, Adhikari N, Jha T. Structure-activity relationships of HDAC8 inhibitors: Non-hydroxamates as anticancer agents. Pharmacol Res 2018. [DOI: 10.1016/j.phrs.2018.03.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Tkachev VV, Sayapin YA, Gusakov EA, Kolodina AA, Dorogan IV, Shilov GV, Aldoshin SM, Minkin VI. Synthesis and Molecular Structures of (3-Hydroxy, 3-Chloro, 3-Arylamino)-N-acetyl-3-arylaminotropones. CRYSTALLOGR REP+ 2018. [DOI: 10.1134/s1063774518010200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Haney SL, Allen C, Varney ML, Dykstra KM, Falcone ER, Colligan SH, Hu Q, Aldridge AM, Wright DL, Wiemer AJ, Holstein SA. Novel tropolones induce the unfolded protein response pathway and apoptosis in multiple myeloma cells. Oncotarget 2017; 8:76085-76098. [PMID: 29100294 PMCID: PMC5652688 DOI: 10.18632/oncotarget.18543] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Accepted: 06/02/2017] [Indexed: 12/31/2022] Open
Abstract
Tropolones are small organic compounds with metal-directing moieties. Tropolones inhibit the proliferation of cancer cell lines, possibly through their effects on metalloenzymes such as select histone deacetylases (HDACs). Pan-HDAC inhibitors are therapeutically beneficial in the treatment of multiple myeloma, however there is interest in the use of more selective HDAC inhibitor therapy to minimize adverse side effects. We hypothesized that tropolones might have anti-myeloma activities. To this end, a series of novel α-substituted tropolones were evaluated for effects on multiple myeloma cells. While all tested tropolones showed some level of cytotoxicity, MO-OH-Nap had consistently low IC50 values between 1-11 μM in all three cell lines tested and was used for subsequent experiments. MO-OH-Nap was found to induce apoptosis in a concentration-dependent manner. Time course experiments demonstrated that MO-OH-Nap promotes caspase cleavage in a time frame that was distinct from the pan-HDAC inhibitor suberoylanilide hydroxamic acid (SAHA). Furthermore, MO-OH-Nap- and SAHA-treated cells possess unique gene expression patterns, suggesting they promote apoptosis via different mechanisms. In particular, MO-OH-Nap increases the expression of markers associated with endoplasmic reticulum stress and the unfolded protein response. Synergistic cytotoxic effects were observed when cells were treated with the combination of MO-OH-Nap and the proteasome inhibitor bortezomib. However, treatment with MO-OH-Nap did not abrogate the bortezomib-induced increase in aggresomes, consistent with an HDAC6-independent mechanism for the observed synergy. Collectively, these finding support further investigation into the usefulness of α-substituted tropolones as anti-myeloma agents.
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Affiliation(s)
- Staci L. Haney
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Cheryl Allen
- Department of Medicine, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Michelle L. Varney
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | | | - Eric R. Falcone
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT, USA
| | - Sean H. Colligan
- Department of Medicine, Roswell Park Cancer Institute, Buffalo, NY, USA
| | - Qiang Hu
- Biostatistics and Bioinformatics, Roswell Park Cancer Institute, Buffalo, NY, USA
| | | | - Dennis L. Wright
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT, USA
| | - Andrew J. Wiemer
- Department of Pharmaceutical Sciences, University of Connecticut, Storrs, CT, USA
| | - Sarah A. Holstein
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
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Schiffer C. Remembering Professor Amy Christine Anderson. Cell Chem Biol 2016. [DOI: 10.1016/j.chembiol.2016.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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