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Needham D. Niclosamide: A career builder. J Control Release 2024; 369:786-856. [PMID: 37544514 DOI: 10.1016/j.jconrel.2023.07.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 06/24/2023] [Accepted: 07/08/2023] [Indexed: 08/08/2023]
Abstract
My contribution to honoring Professor Kinam Park celebrates and resonates with his scholarly career in drug delivery, his commitment to encouraging the next generation(s), and his efforts to keep us focused on clinically effective formulations. To do this I take as my example, niclosamide, a small molecule protonophore that, uniquely, can "target" all cell membranes, both plasma and organelle. As such, it acts upstream of many cell pathways and so has the potential to affect many of the essential events that a cell, and particularly a diseased cell or other entities like a virus, use to stay alive and prosper. Literature shows that it has so far been discovered to positively influence (at least): cancer, bacterial and viral infection, metabolic diseases such as Type II diabetes, NASH and NAFLD, artery constriction, endometriosis, neuropathic pain, rheumatoid arthritis, sclerodermatous graft-versus-host disease, systemic sclerosis, Parkinson's, and COPD. With such a fundamental action and broad-spectrum activity, I believe that studying niclosamide in all its manifestations, discovering if and to what extent it can contribute positively to disease control (and also where it can't), formulating it as effective therapeutics, and testing them in preclinical and clinical trials is a career builder for our next generation(s). The article is divided into two parts: Part I introduces niclosamide and other proton shunts mainly in cancer and viral infections and reviews an exponentially growing literature with some concepts and physicochemical properties that lead to its proton shunt mechanism. Part II focuses on repurposing by reformulation of niclosamide. I give two examples of "carrier-free formulations", - one for cancer (as a prodrug therapeutic of niclosamide stearate for i.v. and other administration routes, exemplified by our recent work on Osteosarcoma in mice and canine patients), and the other as a niclosamide solution formulation (that could provide the basis for a preventative nasal spray and early treatment option for COVID19 and other respiratory virus infections). My goal is to excite and enthuse, encourage, and motivate all involved in the drug development and testing process in academia, institutes, and industry, to learn more about this interesting molecule and others like it. To enable such endeavors, I give many proposed ideas throughout the document, that have been stimulated and inspired by gaps in the literature, urgent needs in disease, and new studies arising from our own work. The hope is that, by reading through this document and studying the suggested topics and references, the drug delivery and development community will continue our lineage and benefit from our legacy to achieve niclosamide's potential as an effective contributor to the treatment and control of many diseases and conditions.
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Affiliation(s)
- David Needham
- Department of Mechanical Engineering and Material Science, Duke University, Durham, NC 27708, USA; Translational Therapeutics, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK.
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2
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Gorny H, Mularoni A, Delcros JG, Freton C, Preto J, Krimm I. Combining nano-differential scanning fluorimetry and microscale thermophoresis to investigate VDAC1 interaction with small molecules. J Enzyme Inhib Med Chem 2023; 38:2121821. [PMID: 36650907 PMCID: PMC9858421 DOI: 10.1080/14756366.2022.2121821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The mitochondrial voltage-dependent anion channel 1 (VDAC1) plays a central role in metabolism and apoptosis, which makes it a promising therapeutic target. Nevertheless, molecular mechanisms governing VDAC1 functioning remain unclear. Small-molecule ligands specifically interacting with the channel provide an attractive way of exploring its structure-function relationships and can possibly be used as founding stones for future drug-candidates. While around 30 VDAC1 ligands have been identified over the years, various techniques have been used by research teams, making a fair and direct comparison between compounds impossible. To tackle this issue, we performed ligand-binding assays on a representative set of seventeen known VDAC1 ligands using nano-differential scanning fluorimetry and microscale thermophoresis. While all the compounds have been confirmed as VDAC1 ligands by at least one method, combining both technologies lead to the selection of four molecules (cannabidiol, curcumin, DIDS and VBIT4) as chemical starting points for future design of VDAC1 selective ligands.
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Affiliation(s)
- Hubert Gorny
- Centre de Recherche en Cancérologie de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Lyon, France
| | - Angélique Mularoni
- Centre de Recherche en Cancérologie de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Lyon, France
| | - Jean-Guy Delcros
- Centre de Recherche en Cancérologie de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Lyon, France
| | - Céline Freton
- Molecular Microbiology and Structural Biochemistry, UMR 5086, Université de Lyon, CNRS, Lyon, France
| | - Jordane Preto
- Centre de Recherche en Cancérologie de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Lyon, France,CONTACT Jordane Preto
| | - Isabelle Krimm
- Centre de Recherche en Cancérologie de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Lyon, France,Isabelle Krimm Centre de Recherche en Cancérologie de Lyon, Université Claude Bernard Lyon 1, INSERM 1052, CNRS 5286, Centre Léon Bérard, Lyon, France
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3
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Gautier B, Forêt Jacquard M, Guelfi S, Abbou S, Gonzalez E, Berthelot J, Boukhaddaoui H, Lebrun A, Legrand B, Tricaud N, Inguimbert N. Mapping the N-Terminal Hexokinase-I Binding Site onto Voltage-Dependent Anion Channel-1 To Block Peripheral Nerve Demyelination. J Med Chem 2022; 65:11633-11647. [PMID: 35984330 DOI: 10.1021/acs.jmedchem.2c00411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The voltage-dependent anion channel (VDAC), the most abundant protein on the outer mitochondrial membrane, is implicated in ATP, ion and metabolite exchange with cell compartments. In particular, the VDAC participates in cytoplasmic and mitochondrial Ca2+ homeostasis. Notably, the Ca2+ efflux out of Schwann cell mitochondria is involved in peripheral nerve demyelination that underlies most peripheral neuropathies. Hexokinase (HK) isoforms I and II, the main ligands of the VDAC, possess a hydrophobic N-terminal structured in α-helix (NHKI) that is necessary for the binding to the VDAC. To gain further insight into the molecular basis of HK binding to the VDAC, we developed and optimized peptides based on the NHKI sequence. These modifications lead to an increase of the peptide hydrophobicity and helical content that enhanced their ability to prevent peripheral nerve demyelination. Our results provide new insights into the molecular basis of VDAC/HK interaction that could lead to the development of therapeutic compounds for demyelinating peripheral neuropathies.
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Affiliation(s)
- Benoit Gautier
- Institut des Neurosciences de Montpellier, Université de Montpellier, 80 rue A. Fliche, Montpellier 34091, France
| | - Mélanie Forêt Jacquard
- UAR CNRS 3278, Centre de Recherche Insulaire et Observatoire de l'Environnement (CRIOBE), CNRS-EPHE-UPVD, Université de Perpignan Via Domitia, bâtiment T, 58 avenue P. Alduy, Perpignan 66860, France
| | - Sophie Guelfi
- Institut des Neurosciences de Montpellier, Université de Montpellier, 80 rue A. Fliche, Montpellier 34091, France
| | - Scarlette Abbou
- Institut des Neurosciences de Montpellier, Université de Montpellier, 80 rue A. Fliche, Montpellier 34091, France
| | - Elisa Gonzalez
- Institut des Neurosciences de Montpellier, Université de Montpellier, 80 rue A. Fliche, Montpellier 34091, France
| | - Jade Berthelot
- Institut des Neurosciences de Montpellier, Université de Montpellier, 80 rue A. Fliche, Montpellier 34091, France
| | - Hassan Boukhaddaoui
- Institut des Neurosciences de Montpellier, Université de Montpellier, 80 rue A. Fliche, Montpellier 34091, France
| | | | - Baptiste Legrand
- Institut des Biomolécules Max Mousseron, IBMM, UMR 5247, CNRS, Université de Montpellier, ENSCM, 15 Avenue Charles Flahault, Montpellier 34093, France
| | - Nicolas Tricaud
- Institut des Neurosciences de Montpellier, Université de Montpellier, 80 rue A. Fliche, Montpellier 34091, France.,LMP, University of Montpellier, Montpellier 34095, France.,I-Stem, UEVE U861, INSERM U861, AFM, Corbeil-Essonnes 91100, France
| | - Nicolas Inguimbert
- UAR CNRS 3278, Centre de Recherche Insulaire et Observatoire de l'Environnement (CRIOBE), CNRS-EPHE-UPVD, Université de Perpignan Via Domitia, bâtiment T, 58 avenue P. Alduy, Perpignan 66860, France.,LMP, University of Montpellier, Montpellier 34095, France
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4
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Xing Gao Z, Long Cui Z, Ran Zhou M, Fu Y, Liu F, Zhang L, Ma S, Yan Chen C. The new mitochondrial uncoupler BAM15 induces ROS production for treatment of acute myeloid leukemia. Biochem Pharmacol 2022; 198:114948. [PMID: 35192847 DOI: 10.1016/j.bcp.2022.114948] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/15/2022] [Accepted: 02/03/2022] [Indexed: 12/12/2022]
Abstract
Acute myeloid leukemia (AML) is a malignant proliferative disease of myeloid hematopoietic origin and cannot be treated appropriately at present. This is due to the fact that leukemia cells are not sensitive to some of the traditional chemotherapy drugs. Or some chemotherapeutic drugs are too toxic to normal cells, affecting their wide clinical application. In this study, we identified BAM15 as a novel mitochondrial uncoupling agent by screening a library of small molecule compounds that inhibit AML cell activity. BAM15 significantly inhibited proliferation and promoted apoptosis in AML cells while at the same time being less cytotoxic to normal cells. The mechanism may be related to the disturbance of the ROS production balance. In vivo investigations revealed that BAM15 effectively suppressed AML progression and prolonged the survival time of mice. In addition, we found that BAM15 can be used in combination with cytarabine to enhance its anti-cancer activity and inhibit the activity of primary cells in AML. Therefore, we identified BAM15 as a potential drug candidate for the treatment of AML.
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Affiliation(s)
- Zhen Xing Gao
- Department of Hematology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ze Long Cui
- Department of Hematology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Min Ran Zhou
- Department of Hematology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yue Fu
- School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Fen Liu
- Department of Microbiology/Key Laboratory for Experimental Teratology of the Chinese Ministry of Education, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Lu Zhang
- Department of Hematology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Sai Ma
- Department of Hematology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.
| | - Chun Yan Chen
- Department of Hematology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.
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5
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Ethanol extracts of Balanophora laxiflora Hemsl inhibit hepatocellular carcinoma with the involvement of HKII-mediated glycolysis. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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6
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Structural basis of complex formation between mitochondrial anion channel VDAC1 and Hexokinase-II. Commun Biol 2021; 4:667. [PMID: 34083717 PMCID: PMC8175357 DOI: 10.1038/s42003-021-02205-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 05/06/2021] [Indexed: 02/04/2023] Open
Abstract
Complex formation between hexokinase-II (HKII) and the mitochondrial VDAC1 is crucial to cell growth and survival. We hypothesize that HKII first inserts into the outer membrane of mitochondria (OMM) and then interacts with VDAC1 on the cytosolic leaflet of OMM to form a binary complex. To systematically investigate this process, we devised a hybrid approach. First, we describe membrane binding of HKII with molecular dynamics (MD) simulations employing a membrane mimetic model with enhanced lipid diffusion capturing membrane insertion of its H-anchor. The insertion depth of the H-anchor was then used to derive positional restraints in subsequent millisecond-scale Brownian dynamics (BD) simulations to preserve the membrane-bound pose of HKII during the formation of the HKII/VDAC1 binary complex. Multiple BD-derived structural models for the complex were further refined and their structural stability probed with additional MD simulations, resulting in one stable complex. A major feature in the complex is the partial (not complete) blockade of VDAC1's permeation pathway, a result supported by our comparative electrophysiological measurements of the channel in the presence and absence of HKII. We also show how VDAC1 phosphorylation disrupts HKII binding, a feature that is verified by our electrophysiology recordings and has implications in mitochondria-mediated cell death.
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7
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Ramírez-Pérez G, Sánchez-Chávez G, Salceda R. Mitochondrial bound hexokinase type I in normal and streptozotocin diabetic rat retina. Mitochondrion 2020; 52:212-217. [DOI: 10.1016/j.mito.2020.04.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 02/24/2020] [Accepted: 04/07/2020] [Indexed: 12/19/2022]
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Guo Y, Wei L, Zhou Y, Lu N, Tang X, Li Z, Wang X. Flavonoid GL-V9 induces apoptosis and inhibits glycolysis of breast cancer via disrupting GSK-3β-modulated mitochondrial binding of HKII. Free Radic Biol Med 2020; 146:119-129. [PMID: 31669347 DOI: 10.1016/j.freeradbiomed.2019.10.413] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 10/23/2019] [Accepted: 10/23/2019] [Indexed: 12/25/2022]
Abstract
Energy metabolism plays important roles in the growth and survival of cancer cells. Here, we find a newly synthesized flavonoid named GL-V9, which inhibits glycolysis and induces apoptosis of human breast cancer cell lines, and investigate the underlying mechanism. Results show that hexokinase II (HKII) plays important roles in the anticancer effects of GL-V9. GL-V9 not only downregulates the expression of HKII in MDA-MB-231 and MCF-7 cells, but also induces dissociation of HKII from voltage-dependent anion channel (VDAC) in mitochondria, resulting in glycolytic inhibition and mitochondrial-mediated apoptosis. The dissociation of mitochondrial HKII is attributed to GSK-3β-induced phosphorylation of mitochondrial VDAC. Our in vivo experiments also show that GL-V9 significantly inhibits the growth of human breast cancer due to activation of GSK-3β and inactivation of AKT. Thus, GL-V9 induces cytotoxicity in breast cancer cells via disrupting the mitochondrial binding of HKII. Our works demonstrate the significance of metabolic regulators in cancer growth and offer a fresh insight into the molecular basis for the development of GL-V9 as a candidate for breast carcinoma treatment.
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Affiliation(s)
- Yongjian Guo
- Department of Chemistry and Biochemistry, Florida International University, Miami, FL, USA
| | - Libin Wei
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, 210009, People's Republic of China
| | - Yuxin Zhou
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, 210009, People's Republic of China
| | - Na Lu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, 210009, People's Republic of China
| | - Xiaoqing Tang
- Department of Chemistry and Biochemistry, Florida International University, Miami, FL, USA
| | - Zhiyu Li
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing, 210009, People's Republic of China
| | - Xiaotang Wang
- Department of Chemistry and Biochemistry, Florida International University, Miami, FL, USA.
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9
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López Grueso MJ, Tarradas Valero RM, Carmona-Hidalgo B, Lagal Ruiz DJ, Peinado J, McDonagh B, Requejo Aguilar R, Bárcena Ruiz JA, Padilla Peña CA. Peroxiredoxin 6 Down-Regulation Induces Metabolic Remodeling and Cell Cycle Arrest in HepG2 Cells. Antioxidants (Basel) 2019; 8:E505. [PMID: 31652719 PMCID: PMC6912460 DOI: 10.3390/antiox8110505] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 10/16/2019] [Accepted: 10/18/2019] [Indexed: 12/29/2022] Open
Abstract
Peroxiredoxin 6 (Prdx6) is the only member of 1-Cys subfamily of peroxiredoxins in human cells. It is the only Prdx acting on phospholipid hydroperoxides possessing two additional sites with phospholipase A2 (PLA2) and lysophosphatidylcholine-acyl transferase (LPCAT) activities. There are contrasting reports on the roles and mechanisms of multifunctional Prdx6 in several pathologies and on its sensitivity to, and influence on, the redox environment. We have down-regulated Prdx6 with specific siRNA in hepatoblastoma HepG2 cells to study its role in cell proliferation, redox homeostasis, and metabolic programming. Cell proliferation and cell number decreased while cell volume increased; import of glucose and nucleotide biosynthesis also diminished while polyamines, phospholipids, and most glycolipids increased. A proteomic quantitative analysis suggested changes in membrane arrangement and vesicle trafficking as well as redox changes in enzymes of carbon and glutathione metabolism, pentose-phosphate pathway, citrate cycle, fatty acid metabolism, biosynthesis of aminoacids, and Glycolysis/Gluconeogenesis. Specific redox changes in Hexokinase-2 (HK2), Prdx6, intracellular chloride ion channel-1 (CLIC1), PEP-carboxykinase-2 (PCK2), and 3-phosphoglycerate dehydrogenase (PHGDH) are compatible with the metabolic remodeling toward a predominant gluconeogenic flow from aminoacids with diversion at 3-phospohglycerate toward serine and other biosynthetic pathways thereon and with cell cycle arrest at G1/S transition.
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Affiliation(s)
- María José López Grueso
- Department of Biochemistry and Molecular Biology, University of Córdoba, 14074 Córdoba, Spain.
| | | | - Beatriz Carmona-Hidalgo
- Department of Biochemistry and Molecular Biology, University of Córdoba, 14074 Córdoba, Spain.
| | - Daniel José Lagal Ruiz
- Department of Biochemistry and Molecular Biology, University of Córdoba, 14074 Córdoba, Spain.
| | - José Peinado
- Department of Biochemistry and Molecular Biology, University of Córdoba, 14074 Córdoba, Spain.
- Maimónides Biomedical Research Institute of Córdoba (IMIBIC), 14004 Córdoba, Spain.
| | - Brian McDonagh
- Department of Physiology, School of Medicine, NUI Galway, H91 TK33 Galway, Ireland.
| | - Raquel Requejo Aguilar
- Department of Biochemistry and Molecular Biology, University of Córdoba, 14074 Córdoba, Spain.
- Maimónides Biomedical Research Institute of Córdoba (IMIBIC), 14004 Córdoba, Spain.
| | - José Antonio Bárcena Ruiz
- Department of Biochemistry and Molecular Biology, University of Córdoba, 14074 Córdoba, Spain.
- Maimónides Biomedical Research Institute of Córdoba (IMIBIC), 14004 Córdoba, Spain.
| | - Carmen Alicia Padilla Peña
- Department of Biochemistry and Molecular Biology, University of Córdoba, 14074 Córdoba, Spain.
- Maimónides Biomedical Research Institute of Córdoba (IMIBIC), 14004 Córdoba, Spain.
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Callaghan NI, Williams KJ, MacCormack TJ. Cardioprotective mitochondrial binding by hexokinase I is induced by a hyperoxic acute thermal insult in the rainbow trout (Oncorhynchus mykiss). Comp Biochem Physiol B Biochem Mol Biol 2018; 224:45-52. [DOI: 10.1016/j.cbpb.2017.07.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 07/07/2017] [Accepted: 07/13/2017] [Indexed: 12/20/2022]
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Caterino M, Ruoppolo M, Mandola A, Costanzo M, Orrù S, Imperlini E. Protein-protein interaction networks as a new perspective to evaluate distinct functional roles of voltage-dependent anion channel isoforms. MOLECULAR BIOSYSTEMS 2018; 13:2466-2476. [PMID: 29028058 DOI: 10.1039/c7mb00434f] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Voltage-dependent anion channels (VDACs) are a family of three mitochondrial porins and the most abundant integral membrane proteins of the mitochondrial outer membrane (MOM). VDACs are known to be involved in metabolite/ion transport across the MOM and in many cellular processes ranging from mitochondria-mediated apoptosis to the control of energy metabolism, by interacting with cytosolic, mitochondrial and cytoskeletal proteins and other membrane channels. Despite redundancy and compensatory mechanisms among VDAC isoforms, they display not only different channel properties and protein expression levels, but also distinct protein partners. Here, we review the known protein interactions for each VDAC isoform in order to shed light on their peculiar roles in physiological and pathological conditions. As proteins associated with the MOM, VDAC opening/closure as a metabolic checkpoint is regulated by protein-protein interactions, and is of pharmacological interest in pathological conditions such as cancer. The interactions involving VDAC1 have been characterized more in depth than those involving VDAC2 and VDAC3. Nevertheless, the so far explored VDAC-protein interactions for each isoform show that VDAC1 is mainly involved in the maintenance of cellular homeostasis and in pro-apoptotic processes, whereas VDAC2 displays an anti-apoptotic role. Despite there being limited information on VDAC3, this isoform could contribute to mitochondrial protein quality control and act as a marker of oxidative status. In pathological conditions, namely neurodegenerative and cardiovascular diseases, both VDAC1 and VDAC2 establish abnormal interactions aimed to counteract the mitochondrial dysfunction which contributes to end-organ damage.
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Affiliation(s)
- Marianna Caterino
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli "Federico II", Naples, Italy
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Liu Y, Zhang Y, Mao X, Qi Q, Zhu M, Zhang C, Pan X, Ling Y. Palliative treatment efficacy of glucose inhibition combined with chemotherapy for non-small cell lung cancer with widespread bone and brain metastases: A case report. Biomed Rep 2017; 7:553-557. [PMID: 29250326 DOI: 10.3892/br.2017.1008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 09/22/2017] [Indexed: 01/01/2023] Open
Abstract
Otto Warburg observed in 1924 that cancer cells were dependent exclusively on glycolysis for the production of energy even in the presence of oxygen (the 'Warburg effect'). Consequently, cancer cells require ~19 times more glucose uptake to obtain equivalent amounts of energy as normal cells. The Warburg effect is the scientific basis for positron emission tomography (PET), which has markedly improved cancer detection. During chemotherapy, cancer cells may upregulate their expression of multi-drug resistance proteins and ultimately cause treatment failure. As multi-drug resistance proteins require energy to operate, the present report evaluated the potential clinical efficacy of lowering blood glucose with insulin during chemotherapy for a patient with advanced pulmonary adenocarcinoma with multiple metastases. A 64-year-old male was admitted to the Department of Medical Oncology at Changzhou Tumor Hospital (Changzhou, China) due to an irritating cough and multiple bone pain. PET/computed tomography (CT) with F-18 fluorodeoxy glucose (18F-FDG) identified multiple hypermetabolic foci in the right hilum, right upper lung, shoulder blades, thoracic vertebrae, lumbar, sacrum, bilateral iliac crest and pelvis. Additionally, magnetic resonance imaging detected multiple metastases in the brain. The patient received 56 repeat treatments with insulin to induce hypoglycemia combined with reduced doses of chemotherapy over an 8-month period. For each treatment, insulin at 0.2 U/kg body weight was injected intravenously (i.v.), and when blood glucose level reached 2.5-3.0 mmol/l, navelbine (10 mg), cisplatin (10 mg) and fluorouracil (250 mg) were injected (i.v.) over a period of ~10 min. The patient's blood glucose level was returned to normal immediately after chemotherapy with an i.v. injection of 20 ml 50% glucose solution. During the 8-month chemotherapy regimen, the patient received two PET/CT follow-ups. The results demonstrated that the levels of 18F-FDG uptake in all lesions had been reduced. In addition, the patient exhibited improved appetite and weight gain, a reduced cough, and had less pain. The levels of tumor markers, namely carcinoembryonic antigen, carcinoma antigen 15-3, CYRA21-1, neuron-specific enolase, also declined gradually. These results suggest that controlled, mild hypoglycemia may be safely combined with low dose chemotherapy to provide clinical benefit for advanced non-small cell lung cancer.
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Affiliation(s)
- Yongping Liu
- Clinical Oncology Laboratory, Changzhou Tumor Hospital Affiliated to Soochow University, Changzhou, Jiangsu 213032, P.R. China
| | - Yaping Zhang
- Clinical Oncology Laboratory, Changzhou Tumor Hospital Affiliated to Soochow University, Changzhou, Jiangsu 213032, P.R. China
| | - Xibao Mao
- Department of Nuclear Medicine, Changzhou Tumor Hospital Affiliated to Soochow University, Changzhou, Jiangsu 213032, P.R. China
| | - Qiufeng Qi
- Clinical Oncology Laboratory, Changzhou Tumor Hospital Affiliated to Soochow University, Changzhou, Jiangsu 213032, P.R. China
| | - Ming Zhu
- Clinical Oncology Laboratory, Changzhou Tumor Hospital Affiliated to Soochow University, Changzhou, Jiangsu 213032, P.R. China
| | - Changsong Zhang
- Clinical Oncology Laboratory, Changzhou Tumor Hospital Affiliated to Soochow University, Changzhou, Jiangsu 213032, P.R. China
| | - Xuefeng Pan
- Clinical Oncology Laboratory, Changzhou Tumor Hospital Affiliated to Soochow University, Changzhou, Jiangsu 213032, P.R. China
| | - Yang Ling
- Clinical Oncology Laboratory, Changzhou Tumor Hospital Affiliated to Soochow University, Changzhou, Jiangsu 213032, P.R. China
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Peredo-Silva L, Fuentes-Retamal S, Sandoval-Acuña C, Pavani M, Maya JD, Castro-Castillo V, Madrid-Rojas M, Rebolledo S, Kemmerling U, Parra E, Ferreira J. Derivatives of alkyl gallate triphenylphosphonium exhibit antitumor activity in a syngeneic murine model of mammary adenocarcinoma. Toxicol Appl Pharmacol 2017; 329:334-346. [PMID: 28647477 DOI: 10.1016/j.taap.2017.06.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 06/07/2017] [Accepted: 06/19/2017] [Indexed: 02/07/2023]
Abstract
We previously demonstrated that alkyl gallates coupled to triphenylphosphine have a selective and efficient antiproliferative effect by inducing mitochondrial uncoupling in vitro due to the increased mitochondrial transmembrane potential of tumor cells. Therefore, in this work, the in vivo antitumor activities of alkyl gallate triphenylphosphonium derivatives (TPP+C8, TPP+C10 and TPP+C12) were evaluated in a syngeneic murine model of breast cancer. We found that TPP+C10 increased the cytosolic ADP/ATP ratio and significantly increased the AMP levels in a concentration-dependent manner in TA3/Ha murine mammary adenocarcinoma cells. Interestingly, TPP+C10 induced a decrease in the levels of cellular proliferation markers and promoted caspase-3 activation in tumor-bearing mice. Additionally, TPP+C10 inhibited tumor growth in the syngeneic mouse model. Importantly, 30days of intraperitoneal (i.p.) administration of the combination of TPP+C10 (10mg/kg/48h) and the antibiotic doxycycline (10mg/kg/24h) completely eliminated the subcutaneous tumor burden in mice (n=6), without any relapses at 60days post-treatment. This enhancement of the individual activities of TPP+C10 and doxycycline is due to the uncoupling of oxidative phosphorylation by TPP+C10 and the inhibition of mitochondrial biogenesis by doxycycline, as demonstrated by loss of mitochondrial mass and overexpression of PGC1-α as an adaptive response. Moreover, i.p. administration of TPP+C10 (10mg/kg/24h) to healthy mice did not produce toxicity or damage in organs important for drug metabolism and excretion, as indicated by hematological, biochemical and histological assessments. These findings suggest that the combination of TPP+C10 with doxycycline is a valuable candidate therapy for breast cancer management.
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Affiliation(s)
- Liliana Peredo-Silva
- Clinical and Molecular Pharmacology Program, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, University of Chile, Av. Independencia 1027, Santiago 8380453, Chile
| | - Sebastián Fuentes-Retamal
- Clinical and Molecular Pharmacology Program, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, University of Chile, Av. Independencia 1027, Santiago 8380453, Chile
| | - Cristian Sandoval-Acuña
- Institute of Biotechnology, Czech Academy of Sciences, Průmyslová 595, Vestec, 25250, Prague, Czech Republic
| | - Mario Pavani
- Clinical and Molecular Pharmacology Program, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, University of Chile, Av. Independencia 1027, Santiago 8380453, Chile
| | - Juan D Maya
- Clinical and Molecular Pharmacology Program, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, University of Chile, Av. Independencia 1027, Santiago 8380453, Chile
| | - Vicente Castro-Castillo
- Department of Organic and Physical Chemistry, Faculty of Chemical and Pharmaceutical Sciences, University of Chile, Santos Dumont 964, Santiago 8380494, Chile
| | - Matías Madrid-Rojas
- Department of Chemistry, Faculty of Basic Sciences, Metropolitan University of Educational Sciences, Av. José Pedro Alessandri 774, Santiago 7760197, Chile
| | - Solange Rebolledo
- Department of Chemistry, Faculty of Basic Sciences, Metropolitan University of Educational Sciences, Av. José Pedro Alessandri 774, Santiago 7760197, Chile
| | - Ulrike Kemmerling
- Program of Anatomy and Developmental Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, University of Chile, Av. Independencia 1027, Santiago 8380453, Chile
| | - Eduardo Parra
- School of Medicine, Faculty of Health Sciences, University of Tarapacá, Av. General Velásquez 1775, Arica 1000007, Chile
| | - Jorge Ferreira
- Clinical and Molecular Pharmacology Program, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, University of Chile, Av. Independencia 1027, Santiago 8380453, Chile.
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Wang Y, Peng X, Yang Z, Zhao W, Xu W, Hao J, Wu W, Shen XL, Luo Y, Huang K. iTRAQ Mitoproteome Analysis Reveals Mechanisms of Programmed Cell Death in Arabidopsis thaliana Induced by Ochratoxin A. Toxins (Basel) 2017; 9:toxins9050167. [PMID: 28524096 PMCID: PMC5450715 DOI: 10.3390/toxins9050167] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 05/09/2017] [Accepted: 05/15/2017] [Indexed: 01/09/2023] Open
Abstract
Ochratoxin A (OTA) is one of the most common and dangerous mycotoxins in the world. Previous work indicated that OTA could elicit spontaneous HR-like lesions formation Arabidopsis thaliana, reactive oxygen species (ROS) play an important role in OTA toxicity, and their major endogenous source is mitochondria. However, there has been no evidence as to whether OTA induces directly PCD in plants until now. In this study, the presence of OTA in Arabidopsisthaliana leaves triggered accelerated respiration, increased production of mitochondrial ROS, the opening of ROS-dependent mitochondrial permeability transition pores and a decrease in mitochondrial membrane potential as well as the release of cytochrome c into the cytosol. There were 42 and 43 significantly differentially expressed proteins identified in response to exposure to OTA for 8 and 24 h, respectively, according to iTRAQ analysis. These proteins were mainly involved in perturbation of the mitochondrial electron transport chain, interfering with ATP synthesis and inducing PCD. Digital gene expression data at transcriptional level was consistent with the cell death induced by OTA being PCD. These results indicated that mitochondrial dysfunction was a prerequisite for OTA-induced PCD and the initiation and execution of PCD via a mitochondrial-mediated pathway.
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Affiliation(s)
- Yan Wang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing 100193, China; (Y.W.)
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (X.P.); (Z.Y.); (W.Z.); (J.H.); (W.W.); (X.L.S.)
| | - Xiaoli Peng
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (X.P.); (Z.Y.); (W.Z.); (J.H.); (W.W.); (X.L.S.)
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Zhuojun Yang
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (X.P.); (Z.Y.); (W.Z.); (J.H.); (W.W.); (X.L.S.)
| | - Weiwei Zhao
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (X.P.); (Z.Y.); (W.Z.); (J.H.); (W.W.); (X.L.S.)
| | - Wentao Xu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; (W.X.); (Y.L.)
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (X.P.); (Z.Y.); (W.Z.); (J.H.); (W.W.); (X.L.S.)
| | - Junran Hao
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (X.P.); (Z.Y.); (W.Z.); (J.H.); (W.W.); (X.L.S.)
| | - Weihong Wu
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (X.P.); (Z.Y.); (W.Z.); (J.H.); (W.W.); (X.L.S.)
| | - Xiao Li Shen
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (X.P.); (Z.Y.); (W.Z.); (J.H.); (W.W.); (X.L.S.)
- School of Public Health, Zunyi Medical University, Zunyi 563000, China
| | - Yunbo Luo
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; (W.X.); (Y.L.)
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (X.P.); (Z.Y.); (W.Z.); (J.H.); (W.W.); (X.L.S.)
| | - Kunlun Huang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, China; (W.X.); (Y.L.)
- Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (X.P.); (Z.Y.); (W.Z.); (J.H.); (W.W.); (X.L.S.)
- Correspondence: ; Tel.: +86-10-6273-8793
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15
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Garbati P, Ravera S, Scarfì S, Salis A, Rosano C, Poggi A, Damonte G, Millo E, Balestrino M. Effects on Energy Metabolism of Two Guanidine Molecules, (Boc)2
-Creatine and Metformin. J Cell Biochem 2017; 118:2700-2711. [PMID: 28128472 DOI: 10.1002/jcb.25914] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Accepted: 01/25/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Patrizia Garbati
- Department of Neuroscience, Ophthalmology, Genetics, Maternal-Infantile Sciences; University of Genova; Largo Paolo Daneo 3 Genova 16132 Italy
| | - Silvia Ravera
- Department of Pharmacy; Biochemistry Laboratory; University of Genova; Viale Benedetto XV 3 Genova 16132 Italy
| | - Sonia Scarfì
- Department of Earth; Environment and Life Sciences (DISTAV) University of Genova; Corso Europa 26 Genova 16132 Italy
| | - Annalisa Salis
- Center of Excellence for Biomedical Research; University of Genova; Viale Benedetto XV 5 Genova 16132 Italy
| | - Camillo Rosano
- IRCCS AOU San Martino-IST National Institute for Cancer Research; Biopolymers and Proteomics; Largo Benzi 10 Genova 16132 Italy
| | - Alessandro Poggi
- IRCCS AOU San Martino-IST National Institute for Cancer Research; Molecular Oncology and Angiogenesis; Largo Benzi 10 Genova 16132 Italy
| | - Gianluca Damonte
- Center of Excellence for Biomedical Research; University of Genova; Viale Benedetto XV 5 Genova 16132 Italy
- Department of Experimental Medicine; Section of Biochemistry; University of Genova; Viale Benedetto XV 1 Genova 16132 Italy
| | - Enrico Millo
- Center of Excellence for Biomedical Research; University of Genova; Viale Benedetto XV 5 Genova 16132 Italy
- Department of Experimental Medicine; Section of Biochemistry; University of Genova; Viale Benedetto XV 1 Genova 16132 Italy
| | - Maurizio Balestrino
- Department of Neuroscience, Ophthalmology, Genetics, Maternal-Infantile Sciences; University of Genova; Largo Paolo Daneo 3 Genova 16132 Italy
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Abstract
The voltage-dependent anion channel (VDAC) is the main interface between the cytosol and mitochondria of cells. It plays a crucial role in both mitochondrial metabolism and cell death. The main basic function of this channel is to mediate and gate the flux of small ions, metabolites, and adenosine triphosphate. Changes in its structure, and thus conformation, are expected to affect its activity and modulate the ability of cancer cells to expand. In this review, we describe a novel mechanism by which mitochondria of cells in hypoxia, a low level of oxygen, protects from apoptosis. In hypoxia, some mitochondria become enlarged due to hyperfusion. These mitochondria possess a truncated form of VDAC1 (VDAC1-ΔC), which is linked to the higher metabolic capacity and the greater resistance to cell death of hypoxic cells. However, not all of the VDAC1 protein is truncated, but the amount of the full-length form is diminished compared to the amount in normoxic cells. First, we describe how such a decrease effects cell proliferation, respiration, glycolysis, and other processes. Second, we report on a novel mitochondrial-endolysosomal crosstalk that leads to VDAC1 truncation. By pharmacological targeting of VDAC1-ΔC, the production of energy could be turned off and the sensitivity to cell death restored. This could counteract the favorable microenvironment that gives cancer cells a growth advantage and thereby disrupts the balance between life and death, which is controlled by VDAC1.
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Affiliation(s)
- N M Mazure
- CNRS UMR7284, INSERM U1081, Institute for Research on Cancer and Aging, Nice (IRCAN), University of Nice, Nice, France; CNRS GDR 3697 Micronit (www.micronit.fr)
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17
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Zhang D, Yip YM, Li L. In silico construction of HK2-VDAC1 complex and investigating the HK2 binding-induced molecular gating mechanism of VDAC1. Mitochondrion 2016; 30:222-8. [PMID: 27544294 DOI: 10.1016/j.mito.2016.08.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 06/30/2016] [Accepted: 08/16/2016] [Indexed: 12/19/2022]
Abstract
Hexokinase 2 (HK2) binds to Voltage-Dependent Anion Channel 1 (VDAC1) on mitochondrial outer membrane (MOM) to facilitate a preferential access of ATP to HK2 for glycolysis, in order to maintain a constant energy source for cell proliferation in cancer especially. While previous studies have discovered that the VDAC1 N-terminal helix is responsible for regulating molecules from within mitochondria to cytoplasm, the molecular mechanism of how HK2 is able to regulate the ATP access remains elusive. We hereby propose a model for the HK2-VDAC1 association. The model is then subjected to molecular dynamics (MD) simulations, where we probe the effect of HK2 binding on the mobility of the VDAC1 N-terminal helix. Results from the simulations show that HK2 binding restricts the movement of the VDAC1 N-terminal helix. As a result, VDAC1 is kept in the open state most of the time and probably allows a constant supply of ATP to HK2 for glycolysis.
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Affiliation(s)
- Dawei Zhang
- School of Physics and Engineering, Henan University of Science and Technology, Luoyang 471023, PR China.
| | - Yew Mun Yip
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Liben Li
- School of Physics and Engineering, Henan University of Science and Technology, Luoyang 471023, PR China
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18
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Quach CHT, Jung KH, Lee JH, Park JW, Moon SH, Cho YS, Choe YS, Lee KH. Mild Alkalization Acutely Triggers the Warburg Effect by Enhancing Hexokinase Activity via Voltage-Dependent Anion Channel Binding. PLoS One 2016; 11:e0159529. [PMID: 27479079 PMCID: PMC4968818 DOI: 10.1371/journal.pone.0159529] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 07/05/2016] [Indexed: 01/10/2023] Open
Abstract
To fully understand the glycolytic behavior of cancer cells, it is important to recognize how it is linked to pH dynamics. Here, we evaluated the acute effects of mild acidification and alkalization on cancer cell glucose uptake and glycolytic flux and investigated the role of hexokinase (HK). Cancer cells exposed to buffers with graded pH were measured for 18F-fluorodeoxyglucose (FDG) uptake, lactate production and HK activity. Subcellular localization of HK protein was assessed by western blots and confocal microscopy. The interior of T47D breast cancer cells was mildly alkalized to pH 7.5 by a buffer pH of 7.8, and this was accompanied by rapid increases of FDG uptake and lactate extrusion. This shift toward glycolytic flux led to the prompt recovery of a reversed pH gradient. In contrast, mild acidification rapidly reduced cellular FDG uptake and lactate production. Mild acidification decreased and mild alkalization increased mitochondrial HK translocation and enzyme activity. Cells transfected with specific siRNA against HK-1, HK-2 and voltage-dependent anion channel (VDAC)1 displayed significant attenuation of pH-induced changes in FDG uptake. Confocal microscopy showed increased co-localization of HK-1 and HK-2 with VDAC1 by alkaline treatment. In isolated mitochondria, acidic pH increased and alkaline pH decreased release of free HK-1 and HK-2 from the mitochondrial pellet into the supernatant. Furthermore, experiments using purified proteins showed that alkaline pH promoted co-immunoprecipitation of HK with VDAC protein. These findings demonstrate that mild alkalization is sufficient to acutely trigger cancer cell glycolytic flux through enhanced activity of HK by promoting its mitochondrial translocation and VDAC binding. This process might serve as a mechanism through which cancer cells trigger the Warburg effect to maintain a dysregulated pH.
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Affiliation(s)
| | - Kyung-Ho Jung
- Department of Nuclear Medicine, Samsung Medical Center, Seoul, Korea
- Samsung Advanced Institute for Health Sciences & Technology, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jin Hee Lee
- Department of Nuclear Medicine, Samsung Medical Center, Seoul, Korea
- Samsung Advanced Institute for Health Sciences & Technology, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jin Won Park
- Department of Nuclear Medicine, Samsung Medical Center, Seoul, Korea
- Samsung Advanced Institute for Health Sciences & Technology, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Seung Hwan Moon
- Department of Nuclear Medicine, Samsung Medical Center, Seoul, Korea
| | - Young Seok Cho
- Department of Nuclear Medicine, Samsung Medical Center, Seoul, Korea
| | - Yearn Seong Choe
- Department of Nuclear Medicine, Samsung Medical Center, Seoul, Korea
- Samsung Advanced Institute for Health Sciences & Technology, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kyung-Han Lee
- Department of Nuclear Medicine, Samsung Medical Center, Seoul, Korea
- Samsung Advanced Institute for Health Sciences & Technology, Sungkyunkwan University School of Medicine, Seoul, Korea
- * E-mail:
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19
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Satoh K, Zhang L, Zhang Y, Chelluri R, Boufraqech M, Nilubol N, Patel D, Shen M, Kebebew E. Identification of Niclosamide as a Novel Anticancer Agent for Adrenocortical Carcinoma. Clin Cancer Res 2016; 22:3458-66. [PMID: 26873959 DOI: 10.1158/1078-0432.ccr-15-2256] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 02/05/2016] [Indexed: 01/09/2023]
Abstract
PURPOSE Adrenocortical carcinoma (ACC) is a rare and aggressive cancer, and no current effective therapy is available for locally advanced and metastatic ACC. Drug repurposing is an emerging approach for identifying new indications for existing drugs, especially for rare cancers such as ACC. The objective of this study was to use quantitative high-throughput screening to identify agents with antineoplastic activity against ACC. EXPERIMENTAL DESIGN A screening of 4,292 compounds was performed on three ACC cell lines: BD140A, SW-13, and NCI-H295R. RESULTS Twenty-one active compounds were identified, with an efficacy of >80% in all three cell lines. Of these, niclosamide showed higher efficacy and lower IC50 than established anti-ACC drugs. We then validated niclosamide-inhibited cellular proliferation in all three ACC cell lines. Next, we investigated the mechanism by which niclosamide inhibited ACC cell proliferation, and found that it induced caspase-dependent apoptosis and G1 cell-cycle arrest. Niclosamide also decreased cellular migration and reduced the level of mediators of epithelial-to-mesenchymal transition, such as N-cadherin and vimentin. Furthermore, niclosamide treatment resulted in decreased expression of β-catenin. We also evaluated the effect of niclosamide on energy metabolism in ACC cell lines and found it resulted in mitochondrial uncoupling. Niclosamide treatment inhibited ACC tumor growth with no observed toxicity in mice in vivo CONCLUSIONS Our findings suggest that niclosamide has anti-ACC activity through its inhibition of multiple altered cellular pathways and cellular metabolism in ACC. Our results provide a preclinical rationale for evaluating niclosamide therapy in a clinical trial for ACC. Clin Cancer Res; 22(14); 3458-66. ©2016 AACR.
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Affiliation(s)
- Kei Satoh
- Endocrine Oncology Branch, National Cancer Institute, NIH, Bethesda, Maryland. Icahn School of Medicine at Mount Sinai, New York, New York
| | - Lisa Zhang
- Endocrine Oncology Branch, National Cancer Institute, NIH, Bethesda, Maryland
| | - Yaqin Zhang
- Division of Pre-Clinical Innovation, National Center for Advancing Translational Sciences, NIH, Bethesda, Maryland
| | - Raju Chelluri
- SUNY Upstate Medical University at Syracuse, Syracuse, New York
| | - Myriem Boufraqech
- Endocrine Oncology Branch, National Cancer Institute, NIH, Bethesda, Maryland
| | - Naris Nilubol
- Endocrine Oncology Branch, National Cancer Institute, NIH, Bethesda, Maryland
| | - Dhaval Patel
- Endocrine Oncology Branch, National Cancer Institute, NIH, Bethesda, Maryland
| | - Min Shen
- Division of Pre-Clinical Innovation, National Center for Advancing Translational Sciences, NIH, Bethesda, Maryland
| | - Electron Kebebew
- Endocrine Oncology Branch, National Cancer Institute, NIH, Bethesda, Maryland.
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20
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Rosano C, Ponassi M, Santolla MF, Pisano A, Felli L, Vivacqua A, Maggiolini M, Lappano R. Macromolecular Modelling and Docking Simulations for the Discovery of Selective GPER Ligands. AAPS JOURNAL 2015; 18:41-6. [PMID: 26573009 DOI: 10.1208/s12248-015-9844-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Accepted: 11/05/2015] [Indexed: 11/30/2022]
Abstract
Estrogens influence multiple physiological processes and are implicated in many diseases as well. Cellular responses to estrogens are mainly mediated by the estrogen receptors (ER)α and ERβ, which act as ligand-activated transcription factors. Recently, a member of the G protein-coupled receptor (GPCR) superfamily, namely GPER/GPR30, has been identified as a further mediator of estrogen signalling in different pathophysiological conditions, including cancer. Today, computational methods are commonly used in all areas of health science research. Among these methods, virtual ligand screening has become an established technique for hit discovery and optimization. The absence of an established three-dimensional structure of GPER promoted studies of structure-based drug design in order to build reliable molecular models of this receptor. Here, we discuss the results obtained through the structure-based virtual ligand screening for GPER, which allowed the identification and synthesis of different selective agonist and antagonist moieties. These compounds led significant advances in our understanding of the GPER function at the cellular, tissue, and organismal levels. In particular, selective GPER ligands were critical toward the evaluation of the role elicited by this receptor in several pathophysiological conditions, including cancer. Considering that structure-based approaches are fundamental in drug discovery, future research breakthroughs with the aid of computer-aided molecular design and chemo-bioinformatics could generate a new class of drugs that, acting through GPER, would be useful in a variety of diseases as well as in innovative anticancer strategies.
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Affiliation(s)
- Camillo Rosano
- UOS Proteomics IRCCS AOU San Martino- IST National Institute for Cancer Research, Largo R. Benzi 10, 16132, Genoa, Italy.
| | - Marco Ponassi
- UOS Proteomics IRCCS AOU San Martino- IST National Institute for Cancer Research, Largo R. Benzi 10, 16132, Genoa, Italy
| | - Maria Francesca Santolla
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, via Bucci, 87036, Rende, Cosenza, Italy
| | - Assunta Pisano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, via Bucci, 87036, Rende, Cosenza, Italy
| | - Lamberto Felli
- Department of Orthopedical Surgery, University of Genoa, Largo R. Benzi 10, 16132, Genoa, Italy
| | - Adele Vivacqua
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, via Bucci, 87036, Rende, Cosenza, Italy
| | - Marcello Maggiolini
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, via Bucci, 87036, Rende, Cosenza, Italy.
| | - Rosamaria Lappano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, via Bucci, 87036, Rende, Cosenza, Italy
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21
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Waskova-Arnostova P, Elsnicova B, Kasparova D, Hornikova D, Kolar F, Novotny J, Zurmanova J. Cardioprotective adaptation of rats to intermittent hypobaric hypoxia is accompanied by the increased association of hexokinase with mitochondria. J Appl Physiol (1985) 2015; 119:1487-93. [PMID: 26494452 DOI: 10.1152/japplphysiol.01035.2014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 10/15/2015] [Indexed: 12/25/2022] Open
Abstract
Chronic hypoxia increases the myocardial resistance to acute ischemia-reperfusion injury by affecting the mitochondrial redox balance. Hexokinase (HK) bears a high potential to suppress the excessive formation of reactive oxygen species because of its increased association with mitochondria, thereby inhibiting the membrane permeability transition pore opening and preventing cell death. The purpose of this study was to determine the effect of severe intermittent hypobaric hypoxia (7,000 m, 8 h/day, 5 wk) on the function and colocalization of HK isoforms with mitochondria in the left (LV) and right ventricles of rat myocardium. The real-time RT-PCR, Western blot, enzyme coupled assay, and quantitative immunofluorescence techniques were used. Our results showed significantly elevated expression of HK isoforms (HK1 and HK2) in the hypoxic LV. In addition, intermittent hypoxia increased the total HK activity and the association of HK isoforms with mitochondria in both ventricles. These findings suggest that HK may contribute to the cardioprotective phenotype induced by adaptation to severe intermittent hypobaric hypoxia.
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Affiliation(s)
- Petra Waskova-Arnostova
- Department of Physiology, Faculty of Science, Charles University in Prague, Prague, Czech Republic; and
| | - Barbara Elsnicova
- Department of Physiology, Faculty of Science, Charles University in Prague, Prague, Czech Republic; and
| | - Dita Kasparova
- Department of Physiology, Faculty of Science, Charles University in Prague, Prague, Czech Republic; and
| | - Daniela Hornikova
- Department of Physiology, Faculty of Science, Charles University in Prague, Prague, Czech Republic; and
| | - Frantisek Kolar
- Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Jiri Novotny
- Department of Physiology, Faculty of Science, Charles University in Prague, Prague, Czech Republic; and
| | - Jitka Zurmanova
- Department of Physiology, Faculty of Science, Charles University in Prague, Prague, Czech Republic; and
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22
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Liu L, Chen X, Li D, Zhang Y, Li L, Guo L, Cao Y, Che Y. Bisabolane Sesquiterpenoids from the Plant Endophytic Fungus Paraconiothyrium brasiliense. JOURNAL OF NATURAL PRODUCTS 2015; 78:746-753. [PMID: 25760674 DOI: 10.1021/np5009569] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Brasilamides E-J (1-6), the bisabolane sesquiterpenoids with the 3-cyclohexylfuran (1 and 2) and 3-cyclohexylfuranone (3-6) skeletons, were isolated from the scale-up fermentation cultures of the plant endophytic fungus Paraconiothynium brasiliense Verkley. Although brasilamide E (1) is a known metabolite, its structure elucidation has yet to be described. The structures of 1-6 were elucidated primarily by NMR experiments. Compounds 3-6 were found to be racemic, and 3 was further separated into enantiomers 3a and 3b on a chiral HPLC column. The absolute configurations of 3a and 3b were assigned by electronic circular dichroism calculations. Compound 1 selectively inhibited the proliferation of the breast (MCF-7) and gastric (MGC) cancer cell lines, with IC50 values of 8.4 and 14.7 μM, respectively. Initial mechanistic investigation revealed that compound 1 inhibited the expression of a key energy metabolic enzyme, hexokinase II (HK2), in MCF-7 cells, which resulted in dysfunction of glucose metabolism and ATP depletion and eventually inhibited the proliferation of the breast cancer cells.
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Affiliation(s)
- Ling Liu
- †State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Xiaoyan Chen
- ‡Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, People's Republic of China
| | | | | | | | - Liangdong Guo
- †State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Ya Cao
- ‡Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, People's Republic of China
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Konieczna A, Szczepańska A, Sawiuk K, Łyżeń R, Węgrzyn G. Enzymes of the central carbon metabolism: Are they linkers between transcription, DNA replication, and carcinogenesis? Med Hypotheses 2015; 84:58-67. [DOI: 10.1016/j.mehy.2014.11.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 11/05/2014] [Accepted: 11/21/2014] [Indexed: 12/16/2022]
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24
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Curcumin inhibits aerobic glycolysis and induces mitochondrial-mediated apoptosis through hexokinase II in human colorectal cancer cells in vitro. Anticancer Drugs 2015; 26:15-24. [DOI: 10.1097/cad.0000000000000132] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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25
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Shoshan-Barmatz V, Ben-Hail D, Admoni L, Krelin Y, Tripathi SS. The mitochondrial voltage-dependent anion channel 1 in tumor cells. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2014; 1848:2547-75. [PMID: 25448878 DOI: 10.1016/j.bbamem.2014.10.040] [Citation(s) in RCA: 167] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 10/20/2014] [Accepted: 10/24/2014] [Indexed: 02/06/2023]
Abstract
VDAC1 is found at the crossroads of metabolic and survival pathways. VDAC1 controls metabolic cross-talk between mitochondria and the rest of the cell by allowing the influx and efflux of metabolites, ions, nucleotides, Ca2+ and more. The location of VDAC1 at the outer mitochondrial membrane also enables its interaction with proteins that mediate and regulate the integration of mitochondrial functions with cellular activities. As a transporter of metabolites, VDAC1 contributes to the metabolic phenotype of cancer cells. Indeed, this protein is over-expressed in many cancer types, and silencing of VDAC1 expression induces an inhibition of tumor development. At the same time, along with regulating cellular energy production and metabolism, VDAC1 is involved in the process of mitochondria-mediated apoptosis by mediating the release of apoptotic proteins and interacting with anti-apoptotic proteins. The engagement of VDAC1 in the release of apoptotic proteins located in the inter-membranal space involves VDAC1 oligomerization that mediates the release of cytochrome c and AIF to the cytosol, subsequently leading to apoptotic cell death. Apoptosis can also be regulated by VDAC1, serving as an anchor point for mitochondria-interacting proteins, such as hexokinase (HK), Bcl2 and Bcl-xL, some of which are also highly expressed in many cancers. By binding to VDAC1, HK provides both a metabolic benefit and apoptosis-suppressive capacity that offer the cell a proliferative advantage and increase its resistance to chemotherapy. Thus, these and other functions point to VDAC1 as an excellent target for impairing the re-programed metabolism of cancer cells and their ability to evade apoptosis. Here, we review current evidence pointing to the function of VDAC1 in cell life and death, and highlight these functions in relation to both cancer development and therapy. In addressing the recently solved 3D structures of VDAC1, this review will point to structure-function relationships of VDAC as critical for deciphering how this channel can perform such a variety of roles, all of which are important for cell life and death. Finally, this review will also provide insight into VDAC function in Ca2+ homeostasis, protection against oxidative stress, regulation of apoptosis and involvement in several diseases, as well as its role in the action of different drugs. We will discuss the use of VDAC1-based strategies to attack the altered metabolism and apoptosis of cancer cells. These strategies include specific siRNA able to impair energy and metabolic homeostasis, leading to arrested cancer cell growth and tumor development, as well VDAC1-based peptides that interact with anti-apoptotic proteins to induce apoptosis, thereby overcoming the resistance of cancer cell to chemotherapy. Finally, small molecules targeting VDAC1 can induce apoptosis. VDAC1 can thus be considered as standing at the crossroads between mitochondrial metabolite transport and apoptosis and hence represents an emerging cancer drug target. This article is part of a Special Issue entitled: Membrane channels and transporters in cancers.
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Affiliation(s)
- Varda Shoshan-Barmatz
- Department of Life Sciences, and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.
| | - Danya Ben-Hail
- Department of Life Sciences, and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Lee Admoni
- Department of Life Sciences, and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Yakov Krelin
- Department of Life Sciences, and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Shambhoo Sharan Tripathi
- Department of Life Sciences, and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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26
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Martel C, Wang Z, Brenner C. VDAC phosphorylation, a lipid sensor influencing the cell fate. Mitochondrion 2014; 19 Pt A:69-77. [DOI: 10.1016/j.mito.2014.07.009] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Revised: 07/17/2014] [Accepted: 07/22/2014] [Indexed: 12/21/2022]
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27
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ARTD1/PARP1 negatively regulates glycolysis by inhibiting hexokinase 1 independent of NAD+ depletion. Cell Rep 2014; 8:1819-1831. [PMID: 25220464 DOI: 10.1016/j.celrep.2014.08.036] [Citation(s) in RCA: 159] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 08/11/2014] [Accepted: 08/19/2014] [Indexed: 12/31/2022] Open
Abstract
ARTD1 (PARP1) is a key enzyme involved in DNA repair through the synthesis of poly(ADP-ribose) (PAR) in response to strand breaks, and it plays an important role in cell death following excessive DNA damage. ARTD1-induced cell death is associated with NAD(+) depletion and ATP loss; however, the molecular mechanism of ARTD1-mediated energy collapse remains elusive. Using real-time metabolic measurements, we compared the effects of ARTD1 activation and direct NAD(+) depletion. We found that ARTD1-mediated PAR synthesis, but not direct NAD(+) depletion, resulted in a block to glycolysis and ATP loss. We then established a proteomics-based PAR interactome after DNA damage and identified hexokinase 1 (HK1) as a PAR binding protein. HK1 activity is suppressed following nuclear ARTD1 activation and binding by PAR. These findings help explain how prolonged activation of ARTD1 triggers energy collapse and cell death, revealing insight into the importance of nucleus-to-mitochondria communication via ARTD1 activation.
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28
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Teijido O, Rappaport SM, Chamberlin A, Noskov SY, Aguilella VM, Rostovtseva TK, Bezrukov SM. Acidification asymmetrically affects voltage-dependent anion channel implicating the involvement of salt bridges. J Biol Chem 2014; 289:23670-82. [PMID: 24962576 DOI: 10.1074/jbc.m114.576314] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The voltage-dependent anion channel (VDAC) is the major pathway for ATP, ADP, and other respiratory substrates through the mitochondrial outer membrane, constituting a crucial point of mitochondrial metabolism regulation. VDAC is characterized by its ability to "gate" between an open and several "closed" states under applied voltage. In the early stages of tumorigenesis or during ischemia, partial or total absence of oxygen supply to cells results in cytosolic acidification. Motivated by these facts, we investigated the effects of pH variations on VDAC gating properties. We reconstituted VDAC into planar lipid membranes and found that acidification reversibly increases its voltage-dependent gating. Furthermore, both VDAC anion selectivity and single channel conductance increased with acidification, in agreement with the titration of the negatively charged VDAC residues at low pH values. Analysis of the pH dependences of the gating and open channel parameters yielded similar pKa values close to 4.0. We also found that the response of VDAC gating to acidification was highly asymmetric. The presumably cytosolic (cis) side of the channel was the most sensitive to acidification, whereas the mitochondrial intermembrane space (trans) side barely responded to pH changes. Molecular dynamic simulations suggested that stable salt bridges at the cis side, which are susceptible to disruption upon acidification, contribute to this asymmetry. The pronounced sensitivity of the cis side to pH variations found here in vitro might provide helpful insights into the regulatory role of VDAC in the protective effect of cytosolic acidification during ischemia in vivo.
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Affiliation(s)
- Oscar Teijido
- From the Program in Physical Biology, Eunice Kennedy Shriver NICHD, National Institutes of Health, Bethesda, Maryland 20892
| | - Shay M Rappaport
- From the Program in Physical Biology, Eunice Kennedy Shriver NICHD, National Institutes of Health, Bethesda, Maryland 20892
| | - Adam Chamberlin
- the Centre for Molecular Simulation, Department of Biological Sciences, University of Calgary, Calgary, Alberta T2N 2N4, Canada, and
| | - Sergei Y Noskov
- From the Program in Physical Biology, Eunice Kennedy Shriver NICHD, National Institutes of Health, Bethesda, Maryland 20892, the Centre for Molecular Simulation, Department of Biological Sciences, University of Calgary, Calgary, Alberta T2N 2N4, Canada, and
| | - Vicente M Aguilella
- the Department of Physics, Universitat Jaume I, 12080 Castelló de la Plana, Spain
| | - Tatiana K Rostovtseva
- From the Program in Physical Biology, Eunice Kennedy Shriver NICHD, National Institutes of Health, Bethesda, Maryland 20892,
| | - Sergey M Bezrukov
- From the Program in Physical Biology, Eunice Kennedy Shriver NICHD, National Institutes of Health, Bethesda, Maryland 20892
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Abstract
The field of mitochondrial ion channels has recently seen substantial progress, including the molecular identification of some of the channels. An integrative approach using genetics, electrophysiology, pharmacology, and cell biology to clarify the roles of these channels has thus become possible. It is by now clear that many of these channels are important for energy supply by the mitochondria and have a major impact on the fate of the entire cell as well. The purpose of this review is to provide an up-to-date overview of the electrophysiological properties, molecular identity, and pathophysiological functions of the mitochondrial ion channels studied so far and to highlight possible therapeutic perspectives based on current information.
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Jara JA, Castro-Castillo V, Saavedra-Olavarría J, Peredo L, Pavanni M, Jaña F, Letelier ME, Parra E, Becker MI, Morello A, Kemmerling U, Maya JD, Ferreira J. Antiproliferative and uncoupling effects of delocalized, lipophilic, cationic gallic acid derivatives on cancer cell lines. Validation in vivo in singenic mice. J Med Chem 2014; 57:2440-54. [PMID: 24568614 DOI: 10.1021/jm500174v] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Tumor cells principally exhibit increased mitochondrial transmembrane potential (ΔΨ(m)) and altered metabolic pathways. The therapeutic targeting and delivery of anticancer drugs to the mitochondria might improve treatment efficacy. Gallic acid exhibits a variety of biological activities, and its ester derivatives can induce mitochondrial dysfunction. Four alkyl gallate triphenylphosphonium lipophilic cations were synthesized, each differing in the size of the linker chain at the cationic moiety. These derivatives were selectively cytotoxic toward tumor cells. The better compound (TPP(+)C10) contained 10 carbon atoms within the linker chain and exhibited an IC50 value of approximately 0.4-1.6 μM for tumor cells and a selectivity index of approximately 17-fold for tumor compared with normal cells. Consequently, its antiproliferative effect was also assessed in vivo. The oxygen consumption rate and NAD(P)H oxidation levels increased in the tumor cell lines (uncoupling effect), resulting in a ΔΨ(m) decrease and a consequent decrease in intracellular ATP levels. Moreover, TPP(+)C10 significantly inhibited the growth of TA3/Ha tumors in mice. According to these results, the antineoplastic activity and safety of TPP(+)C10 warrant further comprehensive evaluation.
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Affiliation(s)
- José A Jara
- Clinical and Molecular Pharmacology Program, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, University of Chile , Independencia 1027, Santiago 8380453, Chile
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31
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Lemeshko VV. VDAC electronics: 1. VDAC-hexo(gluco)kinase generator of the mitochondrial outer membrane potential. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2014; 1838:1362-71. [PMID: 24412217 DOI: 10.1016/j.bbamem.2014.01.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/31/2013] [Revised: 12/25/2013] [Accepted: 01/01/2014] [Indexed: 01/06/2023]
Abstract
The simplest mechanism of the generation of the mitochondrial outer membrane potential (OMP) by the VDAC (voltage-dependent anion channel)-hexokinase complex (VHC), suggested earlier, and by the VDAC-glucokinase complex (VGC), was computationally analyzed. Even at less than 4% of VDACs bound to hexokinase, the calculated OMP is high enough to trigger the electrical closure of VDACs beyond the complexes at threshold concentrations of glucose. These results confirmed our previous hypothesis that the Warburg effect is caused by the electrical closure of VDACs, leading to global restriction of the outer membrane permeability coupled to aerobic glycolysis. The model showed that the inhibition of the conductance and/or an increase in the voltage sensitivity of a relatively small fraction of VDACs by factors like tubulin potentiate the electrical closure of the remaining free VDACs. The extrusion of calcium ions from the mitochondrial intermembrane space by the generated OMP, positive inside, might increase cancer cell resistance to death. Within the VGC model, the known effect of induction of ATP release from mitochondria by accumulated glucose-6-phosphate in pancreatic beta cells might result not only of the known effect of GK dissociation from the VDAC-GK complex, but also of a decrease in the free energy of glucokinase reaction, leading to the OMP decrease and VDAC opening. We suggest that the VDAC-mediated electrical control of the mitochondrial outer membrane permeability, dependent on metabolic conditions, is a fundamental physiological mechanism of global regulation of mitochondrial functions and of cell death.
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Affiliation(s)
- Victor V Lemeshko
- Escuela de Física, Facultad de Ciencias, Universidad Nacional de Colombia, sede Medellín, Calle 59A, No 63-20, Medellín, Colombia.
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32
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Yadav N, Chandra D. Mitochondrial and postmitochondrial survival signaling in cancer. Mitochondrion 2013; 16:18-25. [PMID: 24333692 DOI: 10.1016/j.mito.2013.11.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Revised: 11/23/2013] [Accepted: 11/26/2013] [Indexed: 12/11/2022]
Abstract
Cancer cells are resistant to conventional chemotherapy and radiotherapy, however, the molecular mechanisms of resistance to therapy remain unclear. Cellular survival machinery protects mitochondrial integrity against endogenous or exogenous stresses. Prodeath molecules orchestrate around mitochondria to initiate and execute cell death in cancer, and also play an underappreciated role in survival of cancer cells. Prosurvival mechanisms can operate at mitochondrial and postmitochondrial levels to attenuate core apoptotic death program. It is intriguing to explore how prosurvival and prodeath molecules crosstalk to regulate mitochondrial functions leading to increased cancer cell survival. This review describes some putative survival mechanisms at mitochondria, which may play a role in designing effective agents for cancer prevention and therapy. These survival pathways may also have significance in understanding other human pathophysiological conditions including diabetes, cardiovascular, autoimmune, and neurodegenerative diseases.
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Affiliation(s)
- Neelu Yadav
- Department of Pharmacology Therapeutics, Roswell Park Cancer Institute, Buffalo, NY, United States
| | - Dhyan Chandra
- Department of Pharmacology Therapeutics, Roswell Park Cancer Institute, Buffalo, NY, United States.
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33
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Tomasello MF, Guarino F, Reina S, Messina A, De Pinto V. The voltage-dependent anion selective channel 1 (VDAC1) topography in the mitochondrial outer membrane as detected in intact cell. PLoS One 2013; 8:e81522. [PMID: 24324700 PMCID: PMC3855671 DOI: 10.1371/journal.pone.0081522] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Accepted: 10/14/2013] [Indexed: 12/31/2022] Open
Abstract
Voltage-Dependent Anion selective Channel maintains the permeability of the outer mitochondrial membrane and is relevant in bioenergetic metabolism and apoptosis. The structure of the protein was shown to be a β-barrel formed by 19 strands. The topology or sideness of the pore has been predicted with various approaches but a general consensus was never reached. This is an important issue since VDAC is considered receptor of Hexokinase and Bcl-2. We fused at VDAC1 C-terminus two tags separated by a caspase cleavage site. Activation in cellulo of caspases was used to eventually separate the two reporters. This experiment did not require the isolation of mitochondria and limited the possibility of outer membrane rupture due to similar procedures. Our results show that the C-terminus end of VDAC faces the mitochondrial inter-membrane space.
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Affiliation(s)
- Marianna F. Tomasello
- Department of Biological, Geological and Environmental Sciences, Section of Molecular Biology, University of Catania, and National Institute for Biomembranes and Biosystems, Section of Catania, Catania, Italy
| | - Francesca Guarino
- Department of Biological, Geological and Environmental Sciences, Section of Molecular Biology, University of Catania, and National Institute for Biomembranes and Biosystems, Section of Catania, Catania, Italy
| | - Simona Reina
- Department of Biological, Geological and Environmental Sciences, Section of Molecular Biology, University of Catania, and National Institute for Biomembranes and Biosystems, Section of Catania, Catania, Italy
| | - Angela Messina
- Department of Biological, Geological and Environmental Sciences, Section of Molecular Biology, University of Catania, and National Institute for Biomembranes and Biosystems, Section of Catania, Catania, Italy
| | - Vito De Pinto
- Department of Biological, Geological and Environmental Sciences, Section of Molecular Biology, University of Catania, and National Institute for Biomembranes and Biosystems, Section of Catania, Catania, Italy
- * E-mail:
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34
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Krasnov GS, Dmitriev AA, Lakunina VA, Kirpiy AA, Kudryavtseva AV. Targeting VDAC-bound hexokinase II: a promising approach for concomitant anti-cancer therapy. Expert Opin Ther Targets 2013; 17:1221-33. [DOI: 10.1517/14728222.2013.833607] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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35
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Roberts VA, Thompson EE, Pique ME, Perez MS, Ten Eyck LF. DOT2: Macromolecular docking with improved biophysical models. J Comput Chem 2013; 34:1743-58. [PMID: 23695987 PMCID: PMC4370774 DOI: 10.1002/jcc.23304] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Revised: 02/20/2013] [Accepted: 04/07/2013] [Indexed: 12/11/2022]
Abstract
Computational docking is a useful tool for predicting macromolecular complexes, which are often difficult to determine experimentally. Here, we present the DOT2 software suite, an updated version of the DOT intermolecular docking program. DOT2 provides straightforward, automated construction of improved biophysical models based on molecular coordinates, offering checkpoints that guide the user to include critical features. DOT has been updated to run more quickly, allow flexibility in grid size and spacing, and generate an infinitive complete list of favorable candidate configurations. Output can be filtered by experimental data and rescored by the sum of electrostatic and atomic desolvation energies. We show that this rescoring method improves the ranking of correct complexes for a wide range of macromolecular interactions and demonstrate that biologically relevant models are essential for biologically relevant results. The flexibility and versatility of DOT2 accommodate realistic models of complex biological systems, improving the likelihood of a successful docking outcome.
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Affiliation(s)
- Victoria A Roberts
- San Diego Supercomputer Center, University of California, San Diego, La Jolla, California 92093, USA.
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36
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Alcántar-Aguirre FC, Chagolla A, Tiessen A, Délano JP, González de la Vara LE. ATP produced by oxidative phosphorylation is channeled toward hexokinase bound to mitochondrial porin (VDAC) in beetroots (Beta vulgaris). PLANTA 2013; 237:1571-1583. [PMID: 23503782 DOI: 10.1007/s00425-013-1866-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Accepted: 02/26/2013] [Indexed: 06/01/2023]
Abstract
Mitochondrial porins or voltage-dependent anion channels (VDAC) are the main route for solute transport through outer mitochondrial membranes (OMM). In mammals, hexokinase (HK) binds to VDAC, which allows the channeling of ATP synthesized by oxidative phosphorylation toward HK. In plants, although HK has been found associated with OMM, evidence for an interaction with VDAC is scarce. Thus, in this work, we studied the physical and functional interaction between these proteins in beetroot mitochondria. To observe a physical interaction between HK and VDAC, OMM presenting HK activity were prepared from purified mitochondria. Protein complexes were solubilized from OMM with mild detergents and separated by centrifugation in glycerol gradients. Both HK activity and immunodetected VDAC were found in small (9S-13S) and large (>40S) complexes. OMM proteins were also separated according to their hydropathy by serial phase partitioning with Triton X-114. Most of HK activity was found in hydrophobic fractions where VDAC was also present. These results indicated that HK could be bound to VDAC in beetroot mitochondria. The functional interaction of HK with VDAC was demonstrated by observing the effect of apyrase on HK-catalyzed glucose phosphorylation in intact mitochondria. Apyrase, which hydrolyzes freely soluble ATP, competed efficiently with hexokinase for ATP when it was produced outside mitochondria (with PEP and pyruvate kinase), but not when it was produced inside mitochondria by oxidative phosphorylation. These results suggest that HK closely interacts with VDAC in beetroot mitochondria, and that this interaction allows the channeling of respiratory ATP toward HK through VDAC.
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Affiliation(s)
- Flor C Alcántar-Aguirre
- Departamento de Biotecnología y Bioquímica, Cinvestav, Unidad Irapuato, Km 9.6 Libramiento Norte, CP 36821 Irapuato, Guanajuato, Mexico
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37
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Crepaldi CR, Vitale PAM, Tesch AC, Laure HJ, Rosa JC, de Cerqueira César M. Application of 2D BN/SDS-PAGE coupled with mass spectrometry for identification of VDAC-associated protein complexes related to mitochondrial binding sites for type I brain hexokinase. Mitochondrion 2013; 13:823-30. [PMID: 23719229 DOI: 10.1016/j.mito.2013.05.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Revised: 02/27/2013] [Accepted: 05/14/2013] [Indexed: 11/25/2022]
Abstract
Two types of binding sites for hexokinase, designated as Type A or Type B sites, have been shown to coexist on brain mitochondria. The ratio of these sites varies between species. HK1 attaches by reversibly binding to the voltage dependent anion channel (VDAC). Regarding the nature of hexokinase binding sites, we investigated if it was linked to distinct VDAC interactomes. We approached this question by 2D BN/SDS-PAGE of mitochondria, followed by mass spectrometry. Our results are consistent with the possibility that the ratio of Type A/Type B sites is due to differential VDAC interactions in bovine and rat neuronal cells.
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Affiliation(s)
- Carla Rossini Crepaldi
- Department of Basic Sciences, School of Animal Science and Food Engineering, University of São Paulo, Pirassununga, Brazil
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38
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Omar HA, Berman-Booty L, Weng JR. Energy restriction: stepping stones towards cancer therapy. Future Oncol 2013; 8:1503-6. [PMID: 23231510 DOI: 10.2217/fon.12.142] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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39
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Wei L, Zhou Y, Dai Q, Qiao C, Zhao L, Hui H, Lu N, Guo QL. Oroxylin A induces dissociation of hexokinase II from the mitochondria and inhibits glycolysis by SIRT3-mediated deacetylation of cyclophilin D in breast carcinoma. Cell Death Dis 2013; 4:e601. [PMID: 23598413 PMCID: PMC3641353 DOI: 10.1038/cddis.2013.131] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 03/04/2013] [Accepted: 03/06/2013] [Indexed: 12/20/2022]
Abstract
Oroxylin A is a major active component of the Chinese traditional medicinal plant Scutellaria baicalensis Georgi, which has been reported as a potential anticancer drug. We demonstrated that, Oroxylin A inhibited the glycolysis and the binding of hexokinase II (HK II) with mitochondria in human breast carcinoma cell lines, which was dependent on sirtuin-3 (SIRT3). The level of SIRT3 in mitochondria was increased by Oroxylin A. Then SIRT3 deacetylated cyclophilin D, diminished its peptidyl-prolyl cis-trans isomerase activity and induced its dissociation from the adenine nucleotide translocator. Finally, SIRT3-induced inactivation of cyclophilin D resulted in the detachment of mitochondrial HK II and the inhibition of glycolysis. These results have important implications for the metabolism reprogramming effect and the susceptibility to Oroxylin A-induced mitochondrial cytotoxicity through the regulation of SIRT3 in breast carcinoma.
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Affiliation(s)
- L Wei
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, Department of Physiology, China Pharmaceutical University, Nanjing, The People's Republic of China
| | - Y Zhou
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, Department of Physiology, China Pharmaceutical University, Nanjing, The People's Republic of China
| | - Q Dai
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, Department of Physiology, China Pharmaceutical University, Nanjing, The People's Republic of China
| | - C Qiao
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, Department of Physiology, China Pharmaceutical University, Nanjing, The People's Republic of China
| | - L Zhao
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, Department of Physiology, China Pharmaceutical University, Nanjing, The People's Republic of China
| | - H Hui
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, Department of Physiology, China Pharmaceutical University, Nanjing, The People's Republic of China
| | - N Lu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, Department of Physiology, China Pharmaceutical University, Nanjing, The People's Republic of China
| | - Q-L Guo
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Carcinogenesis and Intervention, Department of Physiology, China Pharmaceutical University, Nanjing, The People's Republic of China
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40
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Krasnov GS, Dmitriev AA, Snezhkina AV, Kudryavtseva AV. Deregulation of glycolysis in cancer: glyceraldehyde-3-phosphate dehydrogenase as a therapeutic target. Expert Opin Ther Targets 2013; 17:681-93. [DOI: 10.1517/14728222.2013.775253] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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41
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Liu Y, Cheng H, Zhou Y, Zhu Y, Bian R, Chen Y, Li C, Ma Q, Zheng Q, Zhang Y, Jin H, Wang X, Chen Q, Zhu D. Myostatin induces mitochondrial metabolic alteration and typical apoptosis in cancer cells. Cell Death Dis 2013; 4:e494. [PMID: 23412387 PMCID: PMC3734823 DOI: 10.1038/cddis.2013.31] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Myostatin, a member of the transforming growth factor-β superfamily, regulates the glucose metabolism of muscle cells, while dysregulated myostatin activity is associated with a number of metabolic disorders, including muscle cachexia, obesity and type II diabetes. We observed that myostatin induced significant mitochondrial metabolic alterations and prolonged exposure of myostatin induced mitochondria-dependent apoptosis in cancer cells addicted to glycolysis. To address the underlying mechanism, we found that the protein levels of Hexokinase II (HKII) and voltage-dependent anion channel 1 (VDAC1), two key regulators of glucose metabolisms as well as metabolic stress-induced apoptosis, were negatively correlated. In particular, VDAC1 was dramatically upregulated in cells that are sensitive to myostatin treatment whereas HKII was downregulated and dissociated from mitochondria. Myostatin promoted the translocation of Bax from cytosol to mitochondria, and knockdown of VDAC1 inhibited myostatin-induced Bax translocation and apoptosis. These apoptotic changes can be partially rescued by repletion of ATP, or by ectopic expression of HKII, suggesting that perturbation of mitochondrial metabolism is causally linked with subsequent apoptosis. Our findings reveal novel function of myostatin in regulating mitochondrial metabolism and apoptosis in cancer cells.
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Affiliation(s)
- Y Liu
- The State Key Laboratory of Biomembrane and Membrane Biotechnology, Chinese Academy of Sciences, Beijing, China
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An iTRAQ-based mitoproteomics approach for profiling the nephrotoxicity mechanisms of ochratoxin A in HEK 293 cells. J Proteomics 2013; 78:398-415. [DOI: 10.1016/j.jprot.2012.10.010] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Revised: 09/28/2012] [Accepted: 10/11/2012] [Indexed: 01/05/2023]
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Shoshan-Barmatz V, Mizrachi D. VDAC1: from structure to cancer therapy. Front Oncol 2012; 2:164. [PMID: 23233904 PMCID: PMC3516065 DOI: 10.3389/fonc.2012.00164] [Citation(s) in RCA: 143] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2012] [Accepted: 10/24/2012] [Indexed: 12/14/2022] Open
Abstract
Here, we review current evidence pointing to the function of VDAC1 in cell life and death, and highlight these functions in relation to cancer. Found at the outer mitochondrial membrane, VDAC1 assumes a crucial position in the cell, controlling the metabolic cross-talk between mitochondria and the rest of the cell. Moreover, its location at the boundary between the mitochondria and the cytosol enables VDAC1 to interact with proteins that mediate and regulate the integration of mitochondrial functions with other cellular activities. As a metabolite transporter, VDAC1 contributes to the metabolic phenotype of cancer cells. This is reflected by VDAC1 over-expression in many cancer types, and by inhibition of tumor development upon silencing VDAC1 expression. Along with regulating cellular energy production and metabolism, VDAC1 is also a key protein in mitochondria-mediated apoptosis, participating in the release of apoptotic proteins and interacting with anti-apoptotic proteins. The involvement of VDAC1 in the release of apoptotic proteins located in the inter-membranal space is discussed, as is VDAC1 oligomerization as an important step in apoptosis induction. VDAC also serves as an anchor point for mitochondria-interacting proteins, some of which are also highly expressed in many cancers, such as hexokinase (HK), Bcl2, and Bcl-xL. By binding to VDAC, HK provides both metabolic benefit and apoptosis-suppressive capacity that offers the cell a proliferative advantage and increases its resistance to chemotherapy. VDAC1-based peptides that bind specifically to HK, Bcl2, or Bcl-xL abolished the cell’s abilities to bypass the apoptotic pathway. Moreover, these peptides promote cell death in a panel of genetically characterized cell lines derived from different human cancers. These and other functions point to VDAC1 as a rational target for the development of a new generation of therapeutics.
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Affiliation(s)
- Varda Shoshan-Barmatz
- Department of Life Sciences, Ben-Gurion University of the Negev Beer-Sheva, Israel ; The National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev Beer-Sheva, Israel
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Structure-based analysis of VDAC1: N-terminus location, translocation, channel gating and association with anti-apoptotic proteins. Biochem J 2012; 444:475-85. [PMID: 22397371 DOI: 10.1042/bj20112079] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Structural studies place the VDAC1 (voltage-dependent anion channel 1) N-terminal region within the channel pore. Biochemical and functional studies, however, reveal that the N-terminal domain is cytoplasmically exposed. In the present study, the location and translocation of the VDAC1 N-terminal domain, and its role in voltage-gating and as a target for anti-apoptotic proteins, were addressed. Site-directed mutagenesis and cysteine residue substitution, together with a thiol-specific cross-linker, served to show that the VDAC1 N-terminal region exists in a dynamic equilibrium, located within the pore or exposed outside the β-barrel. Using a single cysteine-residue-bearing VDAC1, we demonstrate that the N-terminal region lies inside the pore. However, the same region can be exposed outside the pore, where it dimerizes with the N-terminal domain of a second VDAC1 molecule. When the N-terminal region α-helix structure was perturbed, intra-molecular cross-linking was abolished and dimerization was enhanced. This mutant also displays reduced voltage-gating and reduced binding to hexokinase, but not to the anti-apoptotic proteins Bcl-2 and Bcl-xL. Replacing glycine residues in the N-terminal domain GRS (glycine-rich sequence) yielded less intra-molecular cross-linked product but more dimerization, suggesting that GRS provides the flexibility needed for N-terminal translocation from the internal pore to the channel face. N-terminal mobility may thus contribute to channel gating and interaction with anti-apoptotic proteins.
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Henderson B, Martin A. Bacterial Moonlighting Proteins and Bacterial Virulence. Curr Top Microbiol Immunol 2011; 358:155-213. [DOI: 10.1007/82_2011_188] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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