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Giorgi G, Mascaró M, Gandini NA, Rabassa ME, Coló GP, Arévalo J, Curino AC, Facchinetti MM, Roque ME. Iron cycle disruption by heme oxygenase-1 activation leads to a reduced breast cancer cell survival. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166621. [PMID: 36539019 DOI: 10.1016/j.bbadis.2022.166621] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 12/01/2022] [Accepted: 12/01/2022] [Indexed: 12/23/2022]
Abstract
Heme oxygenase-1 (HO-1), which catalyzes heme degradation releasing iron, regulates several processes related to breast cancer. Iron metabolism deregulation is also connected with several tumor processes. However the regulatory relationship between HO-1 and iron proteins in breast cancer remains unclear. Using human breast cancer biopsies, we found that high HO-1 levels significantly correlated with low DMT1 levels. Contrariwise, high HO-1 levels significantly correlated with high ZIP14 and prohepcidin expression, as well as hemosiderin storage. At mRNA level, we found that high HO-1 expression significantly correlated with low DMT1 expression but high ZIP14, L-ferritin and hepcidin expression. In in vivo experiments in mice with genetic overexpression or pharmacological activation of HO-1, we detected the same expression pattern observed in human biopsies. In in vitro experiments, HO-1 activation induced changes in iron proteins expression leading to an increase of hemosiderin, ROS levels, lipid peroxidation and a decrease of the growth rate. Such low growth rate induced by HO-1 activation was reversed when iron levels or ROS levels were reduced. Our findings demonstrate an important role of HO-1 on iron homeostasis in breast cancer. The changes in iron proteins expression when HO-1 is modulated led to the iron accumulation deregulating the iron cell cycle, and consequently, generating oxidative stress and low viability, all contributing to impair breast cancer progression.
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Affiliation(s)
- G Giorgi
- Laboratorio de Fisiología Humana, Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur (UNS), 8000 Bahía Blanca, Argentina
| | - M Mascaró
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Departamento de Biología, Bioquímica y Farmacia (UNS), 8000 Bahía Blanca, Argentina
| | - N A Gandini
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Departamento de Biología, Bioquímica y Farmacia (UNS), 8000 Bahía Blanca, Argentina
| | - M E Rabassa
- Centro de Investigaciones Inmunológicas Básicas y Aplicadas (CINIBA), Facultad de Ciencias Médicas, Universidad Nacional de La Plata (UNLP), 1900 La Plata, Buenos Aires, Argentina
| | - G P Coló
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Departamento de Biología, Bioquímica y Farmacia (UNS), 8000 Bahía Blanca, Argentina
| | - J Arévalo
- Servicio de Patología, Hospital Interzonal de Agudos "Dr. José Penna", 8000 Bahía Blanca, Argentina
| | - A C Curino
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Departamento de Biología, Bioquímica y Farmacia (UNS), 8000 Bahía Blanca, Argentina.
| | - M M Facchinetti
- Laboratorio de Biología del Cáncer, Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB), Universidad Nacional del Sur (UNS)-CONICET, Departamento de Biología, Bioquímica y Farmacia (UNS), 8000 Bahía Blanca, Argentina
| | - M E Roque
- Laboratorio de Fisiología Humana, Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur (UNS), 8000 Bahía Blanca, Argentina
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2
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Abaquita TAL, Damulewicz M, Tylko G, Pyza E. The dual role of heme oxygenase in regulating apoptosis in the nervous system of Drosophila melanogaster. Front Physiol 2023; 14:1060175. [PMID: 36860519 PMCID: PMC9969482 DOI: 10.3389/fphys.2023.1060175] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 01/30/2023] [Indexed: 02/16/2023] Open
Abstract
Accumulating evidence from mammalian studies suggests the dual-faced character of heme oxygenase (HO) in oxidative stress-dependent neurodegeneration. The present study aimed to investigate both neuroprotective and neurotoxic effects of heme oxygenase after the ho gene chronic overexpression or silencing in neurons of Drosophila melanogaster. Our results showed early deaths and behavioral defects after pan-neuronal ho overexpression, while survival and climbing in a strain with pan-neuronal ho silencing were similar over time with its parental controls. We also found that HO can be pro-apoptotic or anti-apoptotic under different conditions. In young (7-day-old) flies, both the cell death activator gene (hid) expression and the initiator caspase Dronc activity increased in heads of flies when ho expression was changed. In addition, various expression levels of ho produced cell-specific degeneration. Dopaminergic (DA) neurons and retina photoreceptors are particularly vulnerable to changes in ho expression. In older (30-day-old) flies, we did not detect any further increase in hid expression or enhanced degeneration, however, we still observed high activity of the initiator caspase. In addition, we used curcumin to further show the involvement of neuronal HO in the regulation of apoptosis. Under normal conditions, curcumin induced both the expression of ho and hid, which was reversed after exposure to high-temperature stress and when supplemented in flies with ho silencing. These results indicate that neuronal HO regulates apoptosis and this process depends on ho expression level, age of flies, and cell type.
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Affiliation(s)
- Terence Al L. Abaquita
- Department of Cell Biology and Imaging, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University, Cracow, Poland
| | - Milena Damulewicz
- Department of Cell Biology and Imaging, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University, Cracow, Poland
| | - Grzegorz Tylko
- Department of Cell Biology and Imaging, Institute of Zoology and Biomedical Research, Faculty of Biology, Jagiellonian University, Cracow, Poland
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Caruso G, Privitera A, Saab MW, Musso N, Maugeri S, Fidilio A, Privitera AP, Pittalà A, Jolivet RB, Lanzanò L, Lazzarino G, Caraci F, Amorini AM. Characterization of Carnosine Effect on Human Microglial Cells under Basal Conditions. Biomedicines 2023; 11:biomedicines11020474. [PMID: 36831010 PMCID: PMC9953171 DOI: 10.3390/biomedicines11020474] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/28/2023] [Accepted: 02/03/2023] [Indexed: 02/10/2023] Open
Abstract
The activity of microglia is fundamental for the regulation of numerous physiological processes including brain development, synaptic plasticity, and neurogenesis, and its deviation from homeostasis can lead to pathological conditions, including numerous neurodegenerative disorders. Carnosine is a naturally occurring molecule with well-characterized antioxidant and anti-inflammatory activities, able to modulate the response and polarization of immune cells and ameliorate their cellular energy metabolism. The better understanding of microglia characteristics under basal physiological conditions, as well as the possible modulation of the mechanisms related to its response to environmental challenges and/or pro-inflammatory/pro-oxidant stimuli, are of utmost importance for the development of therapeutic strategies. In the present study, we assessed the activity of carnosine on human HMC3 microglial cells, first investigating the effects of increasing concentrations of carnosine on cell viability. When used at a concentration of 20 mM, carnosine led to a decrease of cell viability, paralleled by gene expression increase and decrease, respectively, of interleukin 6 and heme oxygenase 1. When using the maximal non-toxic concentration (10 mM), carnosine decreased nitric oxide bioavailability, with no changes in the intracellular levels of superoxide ion. The characterization of energy metabolism of HMC3 microglial cells under basal conditions, never reported before, demonstrated that it is mainly based on mitochondrial oxidative metabolism, paralleled by a high rate of biosynthetic reactions. The exposure of HMC3 cells to carnosine seems to ameliorate microglia energy state, as indicated by the increase in the adenosine triphosphate/adenosine diphosphate (ATP/ADP) ratio and energy charge potential. The improvement of cell energy metabolism mediated by 10 mM carnosine could represent a useful protective weapon in the case of human microglia undergoing stressing conditions.
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Affiliation(s)
- Giuseppe Caruso
- Department of Drug and Health Sciences, University of Catania, 95125 Catania, Italy
- Unit of Neuropharmacology and Translational Neurosciences, Oasi Research Institute-IRCCS, 94018 Troina, Italy
- Correspondence: ; Tel.: +39-0957385036
| | - Anna Privitera
- Department of Drug and Health Sciences, University of Catania, 95125 Catania, Italy
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
| | - Miriam Wissam Saab
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
| | - Nicolò Musso
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
| | - Salvatore Maugeri
- Department of Drug and Health Sciences, University of Catania, 95125 Catania, Italy
| | - Annamaria Fidilio
- Unit of Neuropharmacology and Translational Neurosciences, Oasi Research Institute-IRCCS, 94018 Troina, Italy
| | | | - Alessandra Pittalà
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
| | - Renaud Blaise Jolivet
- Maastricht Centre for Systems Biology (MaCSBio), Maastricht University, 6200 MD Maastricht, The Netherlands
| | - Luca Lanzanò
- Department of Physics and Astronomy “Ettore Majorana”, University of Catania, 95123 Catania, Italy
| | - Giuseppe Lazzarino
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
| | - Filippo Caraci
- Department of Drug and Health Sciences, University of Catania, 95125 Catania, Italy
- Unit of Neuropharmacology and Translational Neurosciences, Oasi Research Institute-IRCCS, 94018 Troina, Italy
| | - Angela Maria Amorini
- Department of Drug and Health Sciences, University of Catania, 95125 Catania, Italy
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4
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Wang G, Fan F, Sun C, Hu Y. Looking into Endoplasmic Reticulum Stress: The Key to Drug-Resistance of Multiple Myeloma? Cancers (Basel) 2022; 14:5340. [PMID: 36358759 PMCID: PMC9654020 DOI: 10.3390/cancers14215340] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/21/2022] [Accepted: 10/27/2022] [Indexed: 09/22/2023] Open
Abstract
Multiple myeloma (MM) is the second most common hematologic malignancy, resulting from the clonal proliferation of malignant plasma cells within the bone marrow. Despite significant advances that have been made with novel drugs over the past two decades, MM patients often develop therapy resistance, especially to bortezomib, the first-in-class proteasome inhibitor that was approved for treatment of MM. As highly secretory monoclonal protein-producing cells, MM cells are characterized by uploaded endoplasmic reticulum stress (ERS), and rely heavily on the ERS response for survival. Great efforts have been made to illustrate how MM cells adapt to therapeutic stresses through modulating the ERS response. In this review, we summarize current knowledge on the mechanisms by which ERS response pathways influence MM cell fate and response to treatment. Moreover, based on promising results obtained in preclinical studies, we discuss the prospect of applying ERS modulators to overcome drug resistance in MM.
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Affiliation(s)
- Guangqi Wang
- Department of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Avenue 1277, Wuhan 430022, China
| | - Fengjuan Fan
- Department of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Avenue 1277, Wuhan 430022, China
| | - Chunyan Sun
- Department of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Avenue 1277, Wuhan 430022, China
- Collaborative Innovation Center of Hematology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Yu Hu
- Department of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Jiefang Avenue 1277, Wuhan 430022, China
- Collaborative Innovation Center of Hematology, Huazhong University of Science and Technology, Wuhan 430074, China
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5
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Hemoxygenase-1 Promotes Head and Neck Cancer Cell Viability. Antioxidants (Basel) 2022; 11:antiox11102077. [PMID: 36290800 PMCID: PMC9598840 DOI: 10.3390/antiox11102077] [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] [Received: 09/05/2022] [Revised: 09/25/2022] [Accepted: 09/30/2022] [Indexed: 11/17/2022] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) is a remarkably heterogeneous disease with around 50% mortality, a fact that has prompted researchers to try new approaches to improve patient survival. Hemoxygenase-1 (HO-1) is the rate-limiting step for heme degradation into carbon monoxide, free iron and biliverdin. We have previously reported that HO-1 protein is upregulated in human HNSCC samples and that it is localized in the cytoplasmic and nuclear compartments; additionally, we have demonstrated that HO-1 nuclear localization is associated with malignant progression. In this work, by using pharmacological and genetic experimental approaches, we begin to elucidate the mechanisms through which HO-1 plays a role in HNSCC. We found that high HO-1 mRNA was associated with decreased patient survival in early stages of HNSCC. In vitro experiments have shown that full-length HO-1 localizes in the cytoplasm, and that, depending on its enzymatic activity, it increases cell viability and promotes cell cycle progression. Instead, HO-1 does not alter migration capacity. Furthermore, we show that C-terminal truncated HO-1 localizes into the nucleus, increases cell viability and promotes cell cycle progression. In conclusion, we herein demonstrate that HO-1 displays protumor activities in HNSCC that depend, at least in part, on the nuclear localization of HO-1.
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Heme Oxygenase-1 Overexpression Promotes Uveal Melanoma Progression and Is Associated with Poor Clinical Outcomes. Antioxidants (Basel) 2022; 11:antiox11101997. [PMID: 36290720 PMCID: PMC9598584 DOI: 10.3390/antiox11101997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 09/30/2022] [Accepted: 10/05/2022] [Indexed: 12/05/2022] Open
Abstract
Uveal melanoma (UM) is the most common primary intraocular tumor in adults. To date, the main strategies to counteract its progression consist of focal radiation on the tumor site and ocular enucleation. Furthermore, many UM patients develop liver metastasis within 10 years following diagnosis, eventually resulting in a poorer prognosis for those patients. Dissecting the molecular mechanism involved in UM progression may lead to identify novel prognostic markers with significative clinical applications. The aim of the present study was to evaluate the role of Heme Oxygenase 1 (HO-1) in regulating UM progression. UM cell lines (92.1) were treated with Hemin (CONC e time), a strong inducer of HO-1, and VP13/47, a selective inhibitor of its enzymatic activity. Interestingly, our results showed an enhanced 92.1 cellular proliferation and wound healing ability following an HO-1 increase, overall unveiling the role played by this protein in tumor progression. Similar results were obtained following treatment with two different CO releasing molecules (CORM-3 and CORM-A1). These results were further confirmed in a clinical setting using our UM cohort. Our results demonstrated an increased median HO-1 expression in metastasizing UM when compared to nonmetastasizing patients. Overall, our results showed that HO-1 derived CO plays a major role in UM progression and HO-1 protein expression may serve as a potential prognostic and therapeutical factor in UM patients.
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7
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The Impact of Tobacco Cigarettes, Vaping Products and Tobacco Heating Products on Oxidative Stress. Antioxidants (Basel) 2022; 11:antiox11091829. [PMID: 36139904 PMCID: PMC9495690 DOI: 10.3390/antiox11091829] [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] [Received: 07/06/2022] [Revised: 09/06/2022] [Accepted: 09/08/2022] [Indexed: 12/02/2022] Open
Abstract
Cells constantly produce oxidizing species because of their metabolic activity, which is counteracted by the continuous production of antioxidant species to maintain the homeostasis of the redox balance. A deviation from the metabolic steady state leads to a condition of oxidative stress. The source of oxidative species can be endogenous or exogenous. A major exogenous source of these species is tobacco smoking. Oxidative damage can be induced in cells by chemical species contained in smoke through the generation of pro-inflammatory compounds and the modulation of intracellular pro-inflammatory pathways, resulting in a pathological condition. Cessation of smoking reduces the morbidity and mortality associated with cigarette use. Next-generation products (NGPs), as alternatives to combustible cigarettes, such as electronic cigarettes (e-cig) and tobacco heating products (THPs), have been proposed as a harm reduction strategy to reduce the deleterious impacts of cigarette smoking. In this review, we examine the impact of tobacco smoke and MRPs on oxidative stress in different pathologies, including respiratory and cardiovascular diseases and tumors. The impact of tobacco cigarette smoke on oxidative stress signaling in human health is well established, whereas the safety profile of MRPs seems to be higher than tobacco cigarettes, but further, well-conceived, studies are needed to better understand the oxidative effects of these products with long-term exposure.
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8
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Longhitano L, Distefano A, Murabito P, Astuto M, Nicolosi A, Buscema G, Sanfilippo F, Lazzarino G, Amorini AM, Bruni A, Garofalo E, Tibullo D, Volti GL. Propofol and α2-Agonists Attenuate Microglia Activation and Restore Mitochondrial Function in an In Vitro Model of Microglia Hypoxia/Reoxygenation. Antioxidants (Basel) 2022; 11:antiox11091682. [PMID: 36139756 PMCID: PMC9495359 DOI: 10.3390/antiox11091682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 08/20/2022] [Accepted: 08/25/2022] [Indexed: 11/16/2022] Open
Abstract
Cerebrovascular ischemia is a common clinical disease encompassing a series of complex pathophysiological processes in which oxidative stress plays a major role. The present study aimed to evaluate the effects of Dexmedetomidine, Clonidine, and Propofol in a model of hypoxia/reoxygenation injury. Microglial cells were exposed to 1%hypoxia for 3 h and reoxygenated for 3 h, and oxidative stress was measured by ROS formation and the expression of inflammatory process genes. Mitochondrial dysfunction was assessed by membrane potential maintenance and the levels of various metabolites involved in energetic metabolism. The results showed that Propofol and α2-agonists attenuate the formation of ROS during hypoxia and after reoxygenation. Furthermore, the α2-agonists treatment restored membrane potential to values comparable to the normoxic control and were both more effective than Propofol. At the same time, Propofol, but not α2-agonists, reduces proliferation (Untreated Hypoxia = 1.16 ± 0.2, Untreated 3 h Reoxygenation = 1.28 ± 0.01 vs. Propofol hypoxia = 1.01 ± 0.01 vs. Propofol 3 h Reoxygenation = 1.12 ± 0.03) and microglial migration. Interestingly, all of the treatments reduced inflammatory gene and protein expressions and restored energy metabolism following hypoxia/reoxygenation (ATP content in hypoxia/reoxygenation 3 h: Untreated = 3.11 ± 0.8 vs. Propofol = 7.03 ± 0.4 vs. Dexmedetomidine = 5.44 ± 0.8 vs. Clonidine = 7.70 ± 0.1), showing that the drugs resulted in a different neuroprotective profile. In conclusion, our results may provide clinically relevant insights for neuroprotective strategies in intensive care units.
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Affiliation(s)
- Lucia Longhitano
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95125 Catania, Italy
| | - Alfio Distefano
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95125 Catania, Italy
| | - Paolo Murabito
- Unità Operativa Complessa Anestesia e Rianimazione 2, Azienda Universitaria “Policlinico G. Rodolico” Via S. Sofia 97, 95125 Catania, Italy
| | - Marinella Astuto
- Unità Operativa Complessa Anestesia e Rianimazione 2, Azienda Universitaria “Policlinico G. Rodolico” Via S. Sofia 97, 95125 Catania, Italy
| | - Anna Nicolosi
- Azienda Ospedaliera “Cannizzaro”, Via Messina 628, 95126 Catania, Italy
| | - Giovanni Buscema
- Unità Operativa Complessa Anestesia e Rianimazione 2, Azienda Universitaria “Policlinico G. Rodolico” Via S. Sofia 97, 95125 Catania, Italy
| | - Filippo Sanfilippo
- Unità Operativa Complessa Anestesia e Rianimazione 2, Azienda Universitaria “Policlinico G. Rodolico” Via S. Sofia 97, 95125 Catania, Italy
| | - Giuseppe Lazzarino
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95125 Catania, Italy
| | - Angela Maria Amorini
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95125 Catania, Italy
| | - Andrea Bruni
- Anesthesia and Intesive Care Unit, Department of Medical and Surgical Sciences, University Hospital Mater Domini, Magna Grecia University, 88100 Catanzaro, Italy
| | - Eugenio Garofalo
- Anesthesia and Intesive Care Unit, Department of Medical and Surgical Sciences, University Hospital Mater Domini, Magna Grecia University, 88100 Catanzaro, Italy
| | - Daniele Tibullo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95125 Catania, Italy
| | - Giovanni Li Volti
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95125 Catania, Italy
- Correspondence:
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Longhitano L, Vicario N, Tibullo D, Giallongo C, Broggi G, Caltabiano R, Barbagallo GMV, Altieri R, Baghini M, Di Rosa M, Parenti R, Giordano A, Mione MC, Li Volti G. Lactate Induces the Expressions of MCT1 and HCAR1 to Promote Tumor Growth and Progression in Glioblastoma. Front Oncol 2022; 12:871798. [PMID: 35574309 PMCID: PMC9097945 DOI: 10.3389/fonc.2022.871798] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 03/23/2022] [Indexed: 12/04/2022] Open
Abstract
The tumor microenvironment (TME) plays a pivotal role in establishing malignancy, and it is associated with high glycolytic metabolism and lactate release through monocarboxylate transporters (MCTs). Several lines of evidence suggest that lactate also serves as a signaling molecule through its receptor hydroxycarboxylic acid receptor 1 (HCAR1/GPR81), thus functioning as a paracrine and autocrine signaling molecule. The aim of the present study was to investigate the role of lactate in glioblastoma (GBM) progression and metabolic reprogramming in an in vitro and in vivo model. The cell proliferation, migration, and clonogenicity were tested in vitro in three different human GBM cell lines. The expressions of MCT1, MCT4, and HCAR1 were evaluated both in vitro and in a zebrafish GBM model. The results were further validated in patient-derived GBM biopsies. Our results showed that lactate significantly increased the cell proliferation, migration, and colony formation capacity of GBM cells, both in vitro and in vivo. We also showed that lactate increased the expressions of MCT1 and HCAR1. Moreover, lactate modulated the epithelial-mesenchymal transition protein markers E-cadherin and β-catenin. Interestingly, lactate induced mitochondrial mass and the OXPHOS gene, suggesting improved mitochondrial fitness. Similar effects were observed after treatment with 3,5-dihydroxybenzoic acid, a known agonist of HCAR1. Consistently, the GBM zebrafish model exhibited an altered metabolism and increased expressions of MCT1 and HCAR1, leading to high levels of extracellular lactate and, thus, supporting tumor cell proliferation. Our data from human GBM biopsies also showed that, in high proliferative GBM biopsies, Ki67-positive cells expressed significantly higher levels of MCT1 compared to low proliferative GBM cells. In conclusion, our data suggest that lactate and its transporter and receptor play a major role in GBM proliferation and migration, thus representing a potential target for new therapeutic strategies to counteract tumor progression and recurrence.
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Affiliation(s)
- Lucia Longhitano
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Nunzio Vicario
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Daniele Tibullo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Cesarina Giallongo
- Department of Medical and Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, Catania, Italy
| | - Giuseppe Broggi
- Department of Medical and Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, Catania, Italy
| | - Rosario Caltabiano
- Department of Medical and Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, Catania, Italy
| | - Giuseppe Maria Vincenzo Barbagallo
- Department of Medical and Surgical Sciences and Advanced Technologies “G.F. Ingrassia” Neurological Surgery, Policlinico “G. Rodolico-San Marco” University Hospital, University of Catania, Catania, Italy
- Interdisciplinary Research Center on Brain Tumors Diagnosis and Treatment, University of Catania, Catania, Italy
| | - Roberto Altieri
- Department of Medical and Surgical Sciences and Advanced Technologies “G.F. Ingrassia” Neurological Surgery, Policlinico “G. Rodolico-San Marco” University Hospital, University of Catania, Catania, Italy
- Interdisciplinary Research Center on Brain Tumors Diagnosis and Treatment, University of Catania, Catania, Italy
| | - Marta Baghini
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Trento, Italy
| | - Michelino Di Rosa
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Rosalba Parenti
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Antonio Giordano
- Sbarro Institute for Cancer Research and Molecular Medicine and Center of Biotechnology, College of Science and Technology, Temple University, Philadelphia, PA, United States
| | - Maria Caterina Mione
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Trento, Italy
| | - Giovanni Li Volti
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
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10
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Scandura G, Giallongo C, Puglisi F, Romano A, Parrinello NL, Zuppelli T, Longhitano L, Giallongo S, Di Rosa M, Musumeci G, Motterlini R, Foresti R, Palumbo GA, Li Volti G, Di Raimondo F, Tibullo D. TLR4 Signaling and Heme Oxygenase-1/Carbon Monoxide Pathway Crosstalk Induces Resiliency of Myeloma Plasma Cells to Bortezomib Treatment. Antioxidants (Basel) 2022; 11:antiox11040767. [PMID: 35453452 PMCID: PMC9031632 DOI: 10.3390/antiox11040767] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 04/01/2022] [Accepted: 04/08/2022] [Indexed: 01/07/2023] Open
Abstract
Relapse in multiple myeloma (MM) decreases therapy efficiency through unclear mechanisms of chemoresistance. Since our group previously demonstrated that heme oxygenase-1 (HO-1) and Toll-like receptor 4 (TLR4) are two signaling pathways protecting MM cells from the proteasome inhibitor bortezomib (BTZ), we here evaluated their cross-regulation by a pharmacological approach. We found that cell toxicity and mitochondrial depolarization by BTZ were increased upon inhibition of HO-1 and TLR4 by using tin protoporphyrin IX (SnPP) and TAK-242, respectively. Furthermore, the combination of TAK-242 and BTZ activated mitophagy and decreased the unfolded protein response (UPR) survival pathway in association with a downregulation in HO-1 expression. Notably, BTZ in combination with SnPP induced effects mirroring the treatment with TAK-242/BTZ, resulting in a blockade of TLR4 upregulation. Interestingly, treatment of cells with either hemin, an HO-1 inducer, or supplementation with carbon monoxide (CO), a by-product of HO-1 enzymatic activity, increased TLR4 expression. In conclusion, we showed that treatment of MM cells with BTZ triggers the TLR4/HO-1/CO axis, serving as a stress-responsive signal that leads to increased cell survival while protecting mitochondria against BTZ and ultimately promoting drug resistance.
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Affiliation(s)
- Grazia Scandura
- Division of Hematology, Department of General Surgery and Medical-Surgical Specialties, A.O.U. “Policlinico-Vittorio Emanuele”, University of Catania, 95123 Catania, Italy; (G.S.); (F.P.); (A.R.); (N.L.P.); (F.D.R.)
| | - Cesarina Giallongo
- Department of Scienze Mediche Chirurgiche e Tecnologie Avanzate “G.F. Ingrassia”, University of Catania, 95123 Catania, Italy;
| | - Fabrizio Puglisi
- Division of Hematology, Department of General Surgery and Medical-Surgical Specialties, A.O.U. “Policlinico-Vittorio Emanuele”, University of Catania, 95123 Catania, Italy; (G.S.); (F.P.); (A.R.); (N.L.P.); (F.D.R.)
| | - Alessandra Romano
- Division of Hematology, Department of General Surgery and Medical-Surgical Specialties, A.O.U. “Policlinico-Vittorio Emanuele”, University of Catania, 95123 Catania, Italy; (G.S.); (F.P.); (A.R.); (N.L.P.); (F.D.R.)
| | - Nunziatina Laura Parrinello
- Division of Hematology, Department of General Surgery and Medical-Surgical Specialties, A.O.U. “Policlinico-Vittorio Emanuele”, University of Catania, 95123 Catania, Italy; (G.S.); (F.P.); (A.R.); (N.L.P.); (F.D.R.)
| | - Tatiana Zuppelli
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (T.Z.); (L.L.); (S.G.); (M.D.R.); (G.M.); (D.T.)
| | - Lucia Longhitano
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (T.Z.); (L.L.); (S.G.); (M.D.R.); (G.M.); (D.T.)
| | - Sebastiano Giallongo
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (T.Z.); (L.L.); (S.G.); (M.D.R.); (G.M.); (D.T.)
| | - Michelino Di Rosa
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (T.Z.); (L.L.); (S.G.); (M.D.R.); (G.M.); (D.T.)
| | - Giuseppe Musumeci
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (T.Z.); (L.L.); (S.G.); (M.D.R.); (G.M.); (D.T.)
| | - Roberto Motterlini
- Faculty of Health, University Paris-Est Créteil, INSERM, IMRB, 94010 Créteil, France; (R.M.); (R.F.)
| | - Roberta Foresti
- Faculty of Health, University Paris-Est Créteil, INSERM, IMRB, 94010 Créteil, France; (R.M.); (R.F.)
| | - Giuseppe Alberto Palumbo
- Department of Scienze Mediche Chirurgiche e Tecnologie Avanzate “G.F. Ingrassia”, University of Catania, 95123 Catania, Italy;
- Correspondence: (G.A.P.); (G.L.V.)
| | - Giovanni Li Volti
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (T.Z.); (L.L.); (S.G.); (M.D.R.); (G.M.); (D.T.)
- Correspondence: (G.A.P.); (G.L.V.)
| | - Francesco Di Raimondo
- Division of Hematology, Department of General Surgery and Medical-Surgical Specialties, A.O.U. “Policlinico-Vittorio Emanuele”, University of Catania, 95123 Catania, Italy; (G.S.); (F.P.); (A.R.); (N.L.P.); (F.D.R.)
| | - Daniele Tibullo
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (T.Z.); (L.L.); (S.G.); (M.D.R.); (G.M.); (D.T.)
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11
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Allegra A, Petrarca C, Di Gioacchino M, Casciaro M, Musolino C, Gangemi S. Modulation of Cellular Redox Parameters for Improving Therapeutic Responses in Multiple Myeloma. Antioxidants (Basel) 2022; 11:antiox11030455. [PMID: 35326105 PMCID: PMC8944660 DOI: 10.3390/antiox11030455] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/22/2022] [Accepted: 02/23/2022] [Indexed: 01/25/2023] Open
Abstract
Raised oxidative stress and abnormal redox status are typical features of multiple myeloma cells, and the identification of the intimate mechanisms that regulate the relationships between neoplastic cells and redox homeostasis may reveal possible new anti-myeloma therapeutic targets to increase the effectiveness of anti-myeloma drugs synergistically or to eradicate drug-resistant clones while reducing toxicity toward normal cells. An alteration of the oxidative state is not only responsible for the onset of multiple myeloma and its progression, but it also appears essential for the therapeutic response and for developing any chemoresistance. Our review aimed to evaluate the literature’s current data on the effects of oxidative stress on the response to drugs generally employed in the therapy of multiple myeloma, such as proteasome inhibitors, immunomodulators, and autologous transplantation. In the second part of the review, we analyzed the possibility of using other substances, often of natural origin, to modulate the oxidative stress to interfere with the progression of myelomatous disease.
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Affiliation(s)
- Alessandro Allegra
- Division of Hematology, Department of Human Pathology in Adulthood and Childhood “Gaetano Barresi”, University of Messina, 98125 Messina, Italy;
- Correspondence: (A.A.); (M.D.G.)
| | - Claudia Petrarca
- Center for Advanced Studies and Technology, G. D’Annunzio University, 66100 Chieti, Italy;
- Institute for Clinical Immunotherapy and Advanced Biological Treatments, 65100 Pescara, Italy
| | - Mario Di Gioacchino
- Center for Advanced Studies and Technology, G. D’Annunzio University, 66100 Chieti, Italy;
- Institute for Clinical Immunotherapy and Advanced Biological Treatments, 65100 Pescara, Italy
- Correspondence: (A.A.); (M.D.G.)
| | - Marco Casciaro
- Unit and School of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (M.C.); (S.G.)
| | - Caterina Musolino
- Division of Hematology, Department of Human Pathology in Adulthood and Childhood “Gaetano Barresi”, University of Messina, 98125 Messina, Italy;
| | - Sebastiano Gangemi
- Unit and School of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy; (M.C.); (S.G.)
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12
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Wu J, Li S, Li C, Cui L, Ma J, Hui Y. The non-canonical effects of heme oxygenase-1, a classical fighter against oxidative stress. Redox Biol 2021; 47:102170. [PMID: 34688156 PMCID: PMC8577501 DOI: 10.1016/j.redox.2021.102170] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 08/29/2021] [Indexed: 12/30/2022] Open
Abstract
The role of heme oxygenase-1 in resisting oxidative stress and cell protection has always been a hot research topic. With the continuous deepening of research, in addition to directly regulating redox by catalyzing the degradation of heme, HO-1 protein also participates in the gene expression level in a great diversity of methods, thereby initiating cell defense. Particularly the non-canonical nuclear-localized HO-1 and HO-1 protein interactions play the role of a warrior against oxidative stress. Besides, HO-1 may be a promising marker for disease prediction and detection in many clinical trials. Especially for malignant diseases, there may be new advances in the treatment of HO-1 by regulating abnormal ROS and metabolic signaling. The purpose of this review is to systematically sort out and describe several aspects of research to facilitate further detailed mechanism research and clinical application promotion in the future. The different subcellular localizations ofHO-1 implies that it has special functions. Nuclear HO-1 plays an indispensable role in gene regulation and other aspects. The interactions between HO-1 and others provide the possibility to participate in vital physiological processes. HO-1 may become a potential disease assessment marker.
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Affiliation(s)
- Jiajia Wu
- Department of Biochemistry and Molecular Biology, Harbin Medical University, Harbin, PR China
| | - Siyu Li
- Department of Biochemistry and Molecular Biology, Harbin Medical University, Harbin, PR China
| | - Cheng Li
- Department of Biochemistry and Molecular Biology, Harbin Medical University, Harbin, PR China
| | - Liying Cui
- Department of Biochemistry and Molecular Biology, Harbin Medical University, Harbin, PR China
| | - Jiajia Ma
- Department of Biochemistry and Molecular Biology, Harbin Medical University, Harbin, PR China
| | - Yang Hui
- Department of Biochemistry and Molecular Biology, Harbin Medical University, Harbin, PR China; Basic Medical Institute of Heilongjiang Medical Science Academy, PR China; Translational Medicine Center of Northern China, PR China.
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13
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The Role of HO-1 and Its Crosstalk with Oxidative Stress in Cancer Cell Survival. Cells 2021; 10:cells10092401. [PMID: 34572050 PMCID: PMC8471703 DOI: 10.3390/cells10092401] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/04/2021] [Accepted: 09/08/2021] [Indexed: 12/19/2022] Open
Abstract
Heme oxygenases (HOs) act on heme degradation to produce carbon monoxide (CO), free iron, ferritin, and biliverdin. Upregulation of cellular HO-1 levels is signature of oxidative stress for its downstream effects particularly under pro-oxidative status. Subcellular traffics of HO-1 to different organelles constitute a network of interactions compromising a variety of effectors such as pro-oxidants, ROS, mitochondrial enzymes, and nucleic transcription factors. Some of the compartmentalized HO-1 have been demonstrated as functioning in the progression of cancer. Emerging data show the multiple roles of HO-1 in tumorigenesis from pathogenesis to the progression to malignancy, metastasis, and even resistance to therapy. However, the role of HO-1 in tumorigenesis has not been systematically addressed. This review describes the crosstalk between HO-1 and oxidative stress, and following redox regulation in the tumorigenesis. HO-1-regulated signaling pathways are also summarized. This review aims to integrate basic information and current progress of HO-1 in cancer research in order to enhance the understandings and facilitate following studies.
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14
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Xiong S, Chng WJ, Zhou J. Crosstalk between endoplasmic reticulum stress and oxidative stress: a dynamic duo in multiple myeloma. Cell Mol Life Sci 2021; 78:3883-3906. [PMID: 33599798 PMCID: PMC8106603 DOI: 10.1007/s00018-021-03756-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 12/19/2020] [Accepted: 01/05/2021] [Indexed: 02/07/2023]
Abstract
Under physiological and pathological conditions, cells activate the unfolded protein response (UPR) to deal with the accumulation of unfolded or misfolded proteins in the endoplasmic reticulum. Multiple myeloma (MM) is a hematological malignancy arising from immunoglobulin-secreting plasma cells. MM cells are subject to continual ER stress and highly dependent on the UPR signaling activation due to overproduction of paraproteins. Mounting evidence suggests the close linkage between ER stress and oxidative stress, demonstrated by overlapping signaling pathways and inter-organelle communication pivotal to cell fate decision. Imbalance of intracellular homeostasis can lead to deranged control of cellular functions and engage apoptosis due to mutual activation between ER stress and reactive oxygen species generation through a self-perpetuating cycle. Here, we present accumulating evidence showing the interactive roles of redox homeostasis and proteostasis in MM pathogenesis and drug resistance, which would be helpful in elucidating the still underdefined molecular pathways linking ER stress and oxidative stress in MM. Lastly, we highlight future research directions in the development of anti-myeloma therapy, focusing particularly on targeting redox signaling and ER stress responses.
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Affiliation(s)
- Sinan Xiong
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Republic of Singapore
| | - Wee-Joo Chng
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Republic of Singapore.
- Centre for Translational Medicine, Cancer Science Institute of Singapore, National University of Singapore, 14 Medical Drive, Singapore, 117599, Republic of Singapore.
- Department of Hematology-Oncology, National University Cancer Institute of Singapore (NCIS), The National University Health System (NUHS), 1E, Kent Ridge Road, Singapore, 119228, Republic of Singapore.
| | - Jianbiao Zhou
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Republic of Singapore.
- Centre for Translational Medicine, Cancer Science Institute of Singapore, National University of Singapore, 14 Medical Drive, Singapore, 117599, Republic of Singapore.
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15
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Barrera G, Cucci MA, Grattarola M, Dianzani C, Muzio G, Pizzimenti S. Control of Oxidative Stress in Cancer Chemoresistance: Spotlight on Nrf2 Role. Antioxidants (Basel) 2021; 10:antiox10040510. [PMID: 33805928 PMCID: PMC8064392 DOI: 10.3390/antiox10040510] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 03/19/2021] [Accepted: 03/23/2021] [Indexed: 12/14/2022] Open
Abstract
Chemoresistance represents the main obstacle to cancer treatment with both conventional and targeted therapy. Beyond specific molecular alterations, which can lead to targeted therapy, metabolic remodeling, including the control of redox status, plays an important role in cancer cell survival following therapy. Although cancer cells generally have a high basal reactive oxygen species (ROS) level, which makes them more susceptible than normal cells to a further increase of ROS, chemoresistant cancer cells become highly adapted to intrinsic or drug-induced oxidative stress by upregulating their antioxidant systems. The antioxidant response is principally mediated by the transcription factor Nrf2, which has been considered the master regulator of antioxidant and cytoprotective genes. Nrf2 expression is often increased in several types of chemoresistant cancer cells, and its expression is mediated by diverse mechanisms. In addition to Nrf2, other transcription factors and transcriptional coactivators can participate to maintain the high antioxidant levels in chemo and radio-resistant cancer cells. The control of expression and function of these molecules has been recently deepened to identify which of these could be used as a new therapeutic target in the treatment of tumors resistant to conventional therapy. In this review, we report the more recent advances in the study of Nrf2 regulation in chemoresistant cancers and the role played by other transcription factors and transcriptional coactivators in the control of antioxidant responses in chemoresistant cancer cells.
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Affiliation(s)
- Giuseppina Barrera
- Department of Clinical and Biological Sciences, University of Turin, Corso Raffaello 30, 10125 Turin, Italy; (M.A.C.); (M.G.); (G.M.); (S.P.)
- Correspondence:
| | - Marie Angele Cucci
- Department of Clinical and Biological Sciences, University of Turin, Corso Raffaello 30, 10125 Turin, Italy; (M.A.C.); (M.G.); (G.M.); (S.P.)
| | - Margherita Grattarola
- Department of Clinical and Biological Sciences, University of Turin, Corso Raffaello 30, 10125 Turin, Italy; (M.A.C.); (M.G.); (G.M.); (S.P.)
| | - Chiara Dianzani
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Via Pietro Giuria 11, 10125 Turin, Italy;
| | - Giuliana Muzio
- Department of Clinical and Biological Sciences, University of Turin, Corso Raffaello 30, 10125 Turin, Italy; (M.A.C.); (M.G.); (G.M.); (S.P.)
| | - Stefania Pizzimenti
- Department of Clinical and Biological Sciences, University of Turin, Corso Raffaello 30, 10125 Turin, Italy; (M.A.C.); (M.G.); (G.M.); (S.P.)
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16
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Němeček D, Chmelikova E, Petr J, Kott T, Sedmíková M. The effect of carbon monoxide on meiotic maturation of porcine oocytes. PeerJ 2021; 9:e10636. [PMID: 33828903 PMCID: PMC7996072 DOI: 10.7717/peerj.10636] [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] [Received: 09/01/2020] [Accepted: 12/02/2020] [Indexed: 11/20/2022] Open
Abstract
Oxidative stress impairs the correct course of meiotic maturation, and it is known that the oocytes are exposed to increased oxidative stress during meiotic maturation in in vitro conditions. Thus, reduction of oxidative stress can lead to improved quality of cultured oocytes. The gasotransmitter carbon monoxide (CO) has a cytoprotective effect in somatic cells. The CO is produced in cells by the enzyme heme oxygenase (HO) and the heme oxygenase/carbon monoxide (HO/CO) pathway has been shown to have an antioxidant effect in somatic cells. It has not yet been investigated whether the CO has an antioxidant effect in oocytes as well. We assessed the level of expression of HO mRNA, using reverse transcription polymerase chain reaction. The HO protein localization was evaluated by the immunocytochemical method. The influence of CO or HO inhibition on meiotic maturation was evaluated in oocytes cultured in a culture medium containing CO donor (CORM-2 or CORM-A1) or HO inhibitor Zn-protoporphyrin IX (Zn-PP IX). Detection of reactive oxygen species (ROS) was performed using the oxidant-sensing probe 2′,7′-dichlorodihydrofluorescein diacetate. We demonstrated the expression of mRNA and proteins of both HO isoforms in porcine oocytes during meiotic maturation. The inhibition of HO enzymes by Zn-PP IX did not affect meiotic maturation. CO delivered by CORM-2 or CORM-A1 donors led to a reduction in the level of ROS in the oocytes during meiotic maturation. However, exogenously delivered CO also inhibited meiotic maturation, especially at higher concentrations. In summary, the CO signaling molecule has antioxidant properties in porcine oocytes and may also be involved in the regulation of meiotic maturation.
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Affiliation(s)
- David Němeček
- Department of Veterinary Sciences, Czech University of Life Sciences, Prague, Czech Republic
| | - Eva Chmelikova
- Department of Veterinary Sciences, Czech University of Life Sciences, Prague, Czech Republic
| | - Jaroslav Petr
- Institute of Animal Science, Uhřiněves, Czech Republic
| | - Tomas Kott
- Institute of Animal Science, Uhřiněves, Czech Republic
| | - Markéta Sedmíková
- Department of Veterinary Sciences, Czech University of Life Sciences, Prague, Czech Republic
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17
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Nuclear Localization of Heme Oxygenase-1 in Pathophysiological Conditions: Does It Explain the Dual Role in Cancer? Antioxidants (Basel) 2021; 10:antiox10010087. [PMID: 33440611 PMCID: PMC7826503 DOI: 10.3390/antiox10010087] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/11/2020] [Accepted: 12/12/2020] [Indexed: 12/12/2022] Open
Abstract
Heme Oxygenase-1 (HO-1) is a type II detoxifying enzyme that catalyzes the rate-limiting step in heme degradation leading to the formation of equimolar quantities of carbon monoxide (CO), free iron and biliverdin. HO-1 was originally shown to localize at the smooth endoplasmic reticulum membrane (sER), although increasing evidence demonstrates that the protein translocates to other subcellular compartments including the nucleus. The nuclear translocation occurs after proteolytic cleavage by proteases including signal peptide peptidase and some cysteine proteases. In addition, nuclear translocation has been demonstrated to be involved in several cellular processes leading to cancer progression, including induction of resistance to therapy and enhanced metastatic activity. In this review, we focus on nuclear HO-1 implication in pathophysiological conditions with special emphasis on malignant processes. We provide a brief background on the current understanding of the mechanisms underlying how HO-1 leaves the sER membrane and migrates to the nucleus, the circumstances under which it does so and, maybe the most important and unknown aspect, what the function of HO-1 in the nucleus is.
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18
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Das A, Sharma P, Frontera A, Barcelo-Oliver M, Verma AK, Ahmed RS, Hussain S, Bhattacharyya MK. Supramolecular assemblies involving biologically relevant antiparallel π-stacking and unconventional solvent driven structural topology in maleato and fumarato bridged Zn(ii) coordination polymers: antiproliferative evaluation and theoretical studies. NEW J CHEM 2021. [DOI: 10.1039/d1nj00619c] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In vitro anticancer activities have been explored in solvent driven maleato and fumarato bridged Zn(ii) coordination polymers involving energetically significant antiparallel π-stacking and enclathrated guest MeOH/H2O moieties.
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Affiliation(s)
- Amal Das
- Department of Chemistry
- Cotton University
- Guwahati-781001
- India
| | - Pranay Sharma
- Department of Chemistry
- Cotton University
- Guwahati-781001
- India
| | - Antonio Frontera
- Departament de Química
- Universitat de les Illes Balears
- Palma de Mallorca (Baleares)
- Spain
| | - Miquel Barcelo-Oliver
- Departament de Química
- Universitat de les Illes Balears
- Palma de Mallorca (Baleares)
- Spain
| | - Akalesh K. Verma
- Department of Zoology
- Cell & Biochemical Technology Laboratory
- Cotton University
- Guwahati-781001
- India
| | - Ruksana Sultana Ahmed
- Department of Zoology
- Cell & Biochemical Technology Laboratory
- Cotton University
- Guwahati-781001
- India
| | - Sahid Hussain
- Department of Chemistry
- Indian Institute of Technology Patna
- Bihta, Patna-801103
- India
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19
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Barbato A, Scandura G, Puglisi F, Cambria D, La Spina E, Palumbo GA, Lazzarino G, Tibullo D, Di Raimondo F, Giallongo C, Romano A. Mitochondrial Bioenergetics at the Onset of Drug Resistance in Hematological Malignancies: An Overview. Front Oncol 2020; 10:604143. [PMID: 33409153 PMCID: PMC7779674 DOI: 10.3389/fonc.2020.604143] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 11/13/2020] [Indexed: 12/11/2022] Open
Abstract
The combined derangements in mitochondria network, function and dynamics can affect metabolism and ATP production, redox homeostasis and apoptosis triggering, contributing to cancer development in many different complex ways. In hematological malignancies, there is a strong relationship between cellular metabolism, mitochondrial bioenergetics, interconnections with supportive microenvironment and drug resistance. Lymphoma and chronic lymphocytic leukemia cells, e.g., adapt to intrinsic oxidative stress by increasing mitochondrial biogenesis. In other hematological disorders such as myeloma, on the contrary, bioenergetics changes, associated to increased mitochondrial fitness, derive from the adaptive response to drug-induced stress. In the bone marrow niche, a reverse Warburg effect has been recently described, consisting in metabolic changes occurring in stromal cells in the attempt to metabolically support adjacent cancer cells. Moreover, a physiological dynamic, based on mitochondria transfer, between tumor cells and their supporting stromal microenvironment has been described to sustain oxidative stress associated to proteostasis maintenance in multiple myeloma and leukemia. Increased mitochondrial biogenesis of tumor cells associated to acquisition of new mitochondria transferred by mesenchymal stromal cells results in augmented ATP production through increased oxidative phosphorylation (OX-PHOS), higher drug resistance, and resurgence after treatment. Accordingly, targeting mitochondrial biogenesis, electron transfer, mitochondrial DNA replication, or mitochondrial fatty acid transport increases therapy efficacy. In this review, we summarize selected examples of the mitochondrial derangements in hematological malignancies, which provide metabolic adaptation and apoptosis resistance, also supported by the crosstalk with tumor microenvironment. This field promises a rational design to improve target-therapy including the metabolic phenotype.
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Affiliation(s)
- Alessandro Barbato
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Grazia Scandura
- Department of General Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy
| | - Fabrizio Puglisi
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Daniela Cambria
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Enrico La Spina
- Department of General Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy
| | - Giuseppe Alberto Palumbo
- Department of Medical, Surgical Sciences and Advanced Technologies G.F. Ingrassia, University of Catania, Catania, Italy
| | - Giacomo Lazzarino
- Saint Camillus International University of Health and Medical Sciences, Rome, Italy
| | - Daniele Tibullo
- Department of Biotechnological and Biomedical Sciences, University of Catania, Catania, Italy
| | - Francesco Di Raimondo
- Department of General Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy
| | - Cesarina Giallongo
- Department of Medical, Surgical Sciences and Advanced Technologies G.F. Ingrassia, University of Catania, Catania, Italy
| | - Alessandra Romano
- Department of Surgery and Medical Specialties, University of Catania, Catania, Italy
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20
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Merk R, Heßelbach K, Osipova A, Popadić D, Schmidt-Heck W, Kim GJ, Günther S, Piñeres AG, Merfort I, Humar M. Particulate Matter (PM 2.5) from Biomass Combustion Induces an Anti-Oxidative Response and Cancer Drug Resistance in Human Bronchial Epithelial BEAS-2B Cells. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E8193. [PMID: 33171923 PMCID: PMC7664250 DOI: 10.3390/ijerph17218193] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/30/2020] [Accepted: 11/03/2020] [Indexed: 02/07/2023]
Abstract
Nearly half of the world's population relies on combustion of solid biofuels to cover fundamental energy demands. Epidemiologic data demonstrate that particularly long-term emissions adversely affect human health. However, pathological molecular mechanisms are insufficiently characterized. Here we demonstrate that long-term exposure to fine particulate matter (PM2.5) from biomass combustion had no impact on cellular viability and proliferation but increased intracellular reactive oxygen species (ROS) levels in bronchial epithelial BEAS-2B cells. Exposure to PM2.5 induced the nuclear factor erythroid 2-related factor 2 (Nrf2) and mediated an anti-oxidative response, including enhanced levels of intracellular glutathione (GSH) and nuclear accumulation of heme oxygenase-1 (HO-1). Activation of Nrf2 was promoted by the c-Jun N-terminal kinase JNK1/2, but not p38 or Akt, which were also induced by PM2.5. Furthermore, cells exposed to PM2.5 acquired chemoresistance to doxorubicin, which was associated with inhibition of apoptosis and elevated levels of GSH in these cells. Our findings propose that exposure to PM2.5 induces molecular defense mechanisms, which prevent cellular damage and may thus explain the initially relative rare complications associated with PM2.5. However, consistent induction of pro-survival pathways may also promote the progression of diseases. Environmental conditions inducing anti-oxidative responses may have the potential to promote a chemoresistant cellular phenotype.
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Affiliation(s)
- Regina Merk
- Department of Pharmaceutical Biology and Biotechnology, Institute of Pharmaceutical Sciences, Albert Ludwigs University Freiburg, 79104 Freiburg, Germany; (R.M.); (K.H.); (A.O.); (D.P.)
| | - Katharina Heßelbach
- Department of Pharmaceutical Biology and Biotechnology, Institute of Pharmaceutical Sciences, Albert Ludwigs University Freiburg, 79104 Freiburg, Germany; (R.M.); (K.H.); (A.O.); (D.P.)
| | - Anastasiya Osipova
- Department of Pharmaceutical Biology and Biotechnology, Institute of Pharmaceutical Sciences, Albert Ludwigs University Freiburg, 79104 Freiburg, Germany; (R.M.); (K.H.); (A.O.); (D.P.)
| | - Désirée Popadić
- Department of Pharmaceutical Biology and Biotechnology, Institute of Pharmaceutical Sciences, Albert Ludwigs University Freiburg, 79104 Freiburg, Germany; (R.M.); (K.H.); (A.O.); (D.P.)
| | - Wolfgang Schmidt-Heck
- Department of Systems Biology and Bioinformatics, Leibniz Institute for Natural Product Research and Infection Biology-Hans-Knöll Institute (HKI), 07745 Jena, Germany;
| | - Gwang-Jin Kim
- Department of Pharmaceutical Bioinformatics, Institute of Pharmaceutical Sciences, Albert-Ludwigs University Freiburg, 79104 Freiburg, Germany; (G.-J.K.); (S.G.)
| | - Stefan Günther
- Department of Pharmaceutical Bioinformatics, Institute of Pharmaceutical Sciences, Albert-Ludwigs University Freiburg, 79104 Freiburg, Germany; (G.-J.K.); (S.G.)
| | - Alfonso García Piñeres
- Centro de Investigación en Biología Celular y Molecular (CIBCM), Universidad de Costa Rica, 11501-2060 San José, Costa Rica;
- Escuela de Química, Universidad de Costa Rica, 11501-2060 San José, Costa Rica
| | - Irmgard Merfort
- Department of Pharmaceutical Biology and Biotechnology, Institute of Pharmaceutical Sciences, Albert Ludwigs University Freiburg, 79104 Freiburg, Germany; (R.M.); (K.H.); (A.O.); (D.P.)
- Spemann Graduate School of Biology and Medicine (SGBM), Albert-Ludwigs University Freiburg, 79104 Freiburg, Germany
| | - Matjaz Humar
- Department of Pharmaceutical Biology and Biotechnology, Institute of Pharmaceutical Sciences, Albert Ludwigs University Freiburg, 79104 Freiburg, Germany; (R.M.); (K.H.); (A.O.); (D.P.)
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Bublitz K, Böckmann S, Peters K, Hinz B. Cannabinoid-Induced Autophagy and Heme Oxygenase-1 Determine the Fate of Adipose Tissue-Derived Mesenchymal Stem Cells under Stressful Conditions. Cells 2020; 9:cells9102298. [PMID: 33076330 PMCID: PMC7602569 DOI: 10.3390/cells9102298] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 10/02/2020] [Accepted: 10/05/2020] [Indexed: 01/17/2023] Open
Abstract
The administration of adipose tissue-derived mesenchymal stem cells (ADMSCs) represents a promising therapeutic option after myocardial ischemia or myocardial infarction. However, their potential is reduced due to the high post-transplant cell mortality probably caused by oxidative stress and mitogen-deficient microenvironments. To identify protection strategies for ADMSCs, this study investigated the influence of the non-psychoactive phytocannabinoid cannabidiol (CBD) and the endocannabinoid analogue R(+)-methanandamide (MA) on the induction of heme oxygenase-1 (HO-1) and autophagy under serum-free conditions. At a concentration of 3 µM, CBD induced an upregulation of HO-1 mRNA and protein within 6 h, whereas for MA only a late and comparatively lower increase in the HO-1 protein could be detected after 48 h. In addition, both cannabinoids induced time- and concentration-dependent increases in LC3A/B-II protein, a marker of autophagy, and in metabolic activity. A participation of several cannabinoid-binding receptors in the effect on metabolic activity and HO-1 was excluded. Similarly, knockdown of HO-1 by siRNA or inhibition of HO-1 activity by tin protoporphyrin IX (SnPPIX) had no effect on CBD-induced autophagy and metabolic activity. On the other hand, the inhibition of autophagy by bafilomycin A1 led to a significant decrease in cannabinoid-induced metabolic activity and to an increase in apoptosis. Under these circumstances, a significant induction of HO-1 expression after 24 h could also be demonstrated for MA. Remarkably, inhibition of HO-1 by SnPPIX under conditions of autophagy deficit led to a significant reversal of apoptosis in cannabinoid-treated cells. In conclusion, the investigated cannabinoids increase metabolic viability of ADMSCs under serum-free conditions by inducing HO-1-independent autophagy but contribute to apoptosis under conditions of additional autophagy deficit via an HO-1-dependent pathway.
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Affiliation(s)
- Katharina Bublitz
- Institute of Pharmacology and Toxicology, Rostock University Medical Center, Schillingallee 70, D-18057 Rostock, Germany; (K.B.); (S.B.)
| | - Sabine Böckmann
- Institute of Pharmacology and Toxicology, Rostock University Medical Center, Schillingallee 70, D-18057 Rostock, Germany; (K.B.); (S.B.)
| | - Kirsten Peters
- Department of Cell Biology, Rostock University Medical Center, Schillingallee 69, D-18057 Rostock, Germany;
| | - Burkhard Hinz
- Institute of Pharmacology and Toxicology, Rostock University Medical Center, Schillingallee 70, D-18057 Rostock, Germany; (K.B.); (S.B.)
- Correspondence: ; Tel.: +49-381-494-5770
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22
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Giallongo C, Tibullo D, Puglisi F, Barbato A, Vicario N, Cambria D, Parrinello NL, Romano A, Conticello C, Forte S, Parenti R, Amorini AM, Lazzarino G, Li Volti G, Palumbo GA, Di Raimondo F. Inhibition of TLR4 Signaling Affects Mitochondrial Fitness and Overcomes Bortezomib Resistance in Myeloma Plasma Cells. Cancers (Basel) 2020; 12:cancers12081999. [PMID: 32707760 PMCID: PMC7463509 DOI: 10.3390/cancers12081999] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/02/2020] [Accepted: 07/18/2020] [Indexed: 12/14/2022] Open
Abstract
Multiple myeloma (MM) is a B-cell malignancy requiring inflammatory microenvironment signals for cell survival and proliferation. Despite improvements in pharmacological tools, MM remains incurable mainly because of drug resistance. The present study aimed to investigate the implication of Toll-like receptor 4 (TLR4) as the potential mechanism of bortezomib (BTZ) resistance. We found that TLR4 activation induced mitochondrial biogenesis and increased mitochondrial mass in human MM cell lines. Moreover, TLR4 signaling was activated after BTZ exposure and was increased in BTZ-resistant U266 (U266-R) cells. A combination of BTZ with TAK-242, a selective TLR4 inhibitor, overcame drug resistance through the generation of higher and extended oxidative stress, strong mitochondrial depolarization and severe impairment of mitochondrial fitness which in turn caused cell energy crisis and activated mitophagy and apoptosis. We further confirmed the efficacy of a TAK-242/BTZ combination in plasma cells from refractory myeloma patients. Consistently, inhibition of TLR4 increased BTZ-induced mitochondrial depolarization, restoring pharmacological response. Taken together, these findings indicate that TLR4 signaling acts as a stress-responsive mechanism protecting mitochondria during BTZ exposure, sustaining mitochondrial metabolism and promoting drug resistance. Inhibition of TLR4 could be therefore be a possible target in patients with refractory MM to overcome BTZ resistance.
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Affiliation(s)
- Cesarina Giallongo
- Department of Medical and Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, University of Catania, 95123 Catania, Italy;
- Correspondence: (C.G.); (G.L.V.)
| | - Daniele Tibullo
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (D.T.); (A.M.A.); (G.L.)
| | - Fabrizio Puglisi
- Division of Hematology, Azienda Ospedaliero Universitaria, Policlinico Vittorio Emanuele, 95123 Catania, Italy; (F.P.); (A.B.); (D.C.); (N.L.P.); (A.R.); (C.C.); (F.D.R.)
| | - Alessandro Barbato
- Division of Hematology, Azienda Ospedaliero Universitaria, Policlinico Vittorio Emanuele, 95123 Catania, Italy; (F.P.); (A.B.); (D.C.); (N.L.P.); (A.R.); (C.C.); (F.D.R.)
| | - Nunzio Vicario
- Section of Physiology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (N.V.); (R.P.)
| | - Daniela Cambria
- Division of Hematology, Azienda Ospedaliero Universitaria, Policlinico Vittorio Emanuele, 95123 Catania, Italy; (F.P.); (A.B.); (D.C.); (N.L.P.); (A.R.); (C.C.); (F.D.R.)
| | - Nunziatina Laura Parrinello
- Division of Hematology, Azienda Ospedaliero Universitaria, Policlinico Vittorio Emanuele, 95123 Catania, Italy; (F.P.); (A.B.); (D.C.); (N.L.P.); (A.R.); (C.C.); (F.D.R.)
| | - Alessandra Romano
- Division of Hematology, Azienda Ospedaliero Universitaria, Policlinico Vittorio Emanuele, 95123 Catania, Italy; (F.P.); (A.B.); (D.C.); (N.L.P.); (A.R.); (C.C.); (F.D.R.)
| | - Concetta Conticello
- Division of Hematology, Azienda Ospedaliero Universitaria, Policlinico Vittorio Emanuele, 95123 Catania, Italy; (F.P.); (A.B.); (D.C.); (N.L.P.); (A.R.); (C.C.); (F.D.R.)
| | - Stefano Forte
- Fondazione “Istituto Oncologico del Mediterraneo”, 95029 Catania, Italy;
| | - Rosalba Parenti
- Section of Physiology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (N.V.); (R.P.)
| | - Angela Maria Amorini
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (D.T.); (A.M.A.); (G.L.)
| | - Giuseppe Lazzarino
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (D.T.); (A.M.A.); (G.L.)
| | - Giovanni Li Volti
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (D.T.); (A.M.A.); (G.L.)
- Correspondence: (C.G.); (G.L.V.)
| | - Giuseppe Alberto Palumbo
- Department of Medical and Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, University of Catania, 95123 Catania, Italy;
- Division of Hematology, Azienda Ospedaliero Universitaria, Policlinico Vittorio Emanuele, 95123 Catania, Italy; (F.P.); (A.B.); (D.C.); (N.L.P.); (A.R.); (C.C.); (F.D.R.)
| | - Francesco Di Raimondo
- Division of Hematology, Azienda Ospedaliero Universitaria, Policlinico Vittorio Emanuele, 95123 Catania, Italy; (F.P.); (A.B.); (D.C.); (N.L.P.); (A.R.); (C.C.); (F.D.R.)
- Division of Hematology, Department of General Surgery and Medical-Surgical Specialties, University of Catania, 95123 Catania, Italy
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23
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Camiolo G, Barbato A, Giallongo C, Vicario N, Romano A, Parrinello NL, Parenti R, Sandoval JC, García-Moreno D, Lazzarino G, Avola R, Palumbo GA, Mulero V, Li Volti G, Tibullo D, Di Raimondo F. Iron regulates myeloma cell/macrophage interaction and drives resistance to bortezomib. Redox Biol 2020; 36:101611. [PMID: 32863212 PMCID: PMC7327252 DOI: 10.1016/j.redox.2020.101611] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 06/11/2020] [Accepted: 06/16/2020] [Indexed: 02/08/2023] Open
Abstract
Iron plays a major role in multiple processes involved in cell homeostasis such as metabolism, respiration and DNA synthesis. Cancer cells exhibit pronounced iron retention as compared to healthy counterpart. This phenomenon also occurs in multiple myeloma (MM), a hematological malignancy characterized by terminally differentiated plasma cells (PCs), in which serum ferritin levels have been reported as a negative prognostic marker. The aim of current study is to evaluate the potential role of iron metabolism in promoting drug resistance in myeloma cancer cells with particular regard to the interactions between PCs and tumor-associated macrophages (TAMs) as a source of iron. Our data showed that myeloma cell lines are able to intake and accumulate iron and thus, increasing their scavenger antioxidant-related genes and mitochondrial mass. We further demonstrated that PCs pre-treated with ferric ammonium citrate (FAC) decreased bortezomib (BTZ)-induced apoptosis in vitro and successfully engrafted in zebrafish larvae treated with BTZ. Treating human macrophages with FAC, we observed a switch toward a M2-like phenotype associated with an increased expression of anti-inflammatory markers such as ARG1, suggesting the establishment of an iron-mediated immune suppressive tumor microenvironment favouring myeloma growth. Using mfap4:tomato mutant zebrafish larvae, we further confirmed the increase of PCs-monocytes interactions after FAC treatment which favour BTZ-resistance. Taken together our data support the hypothesis that targeting iron trafficking in myeloma microenvironment may represent a promising strategy to counteract a tumor-supporting milieu and drug resistance.
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Affiliation(s)
- Giuseppina Camiolo
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Alessandro Barbato
- Section of Hematology, Department of Medical and Surgical Specialties, A.O.U. Policlinico-OVE, University of Catania, 95125, Catania, Italy
| | - Cesarina Giallongo
- Section of Hematology, Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", A.O.U. Policlinico-OVE, University of Catania, 95125, Catania, Italy.
| | - Nunzio Vicario
- Section of Physiology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Alessandra Romano
- Section of Hematology, Department of Medical and Surgical Specialties, A.O.U. Policlinico-OVE, University of Catania, 95125, Catania, Italy
| | - Nunziatina L Parrinello
- Division of Hematology, A.O.U. Policlinico-OVE, University of Catania, 95122, Catania, Italy
| | - Rosalba Parenti
- Section of Physiology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Joaquín Cantón Sandoval
- Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de MurciaIMIB-Arrixaca, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Murcia, 30100, Spain
| | - Diana García-Moreno
- Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de MurciaIMIB-Arrixaca, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Murcia, 30100, Spain
| | - Giacomo Lazzarino
- UniCamillus - Saint Camillus International University of Health Sciences, Via di Sant'Alessandro 8, 00131, Rome, Italy
| | - Roberto Avola
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Giuseppe A Palumbo
- Section of Hematology, Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", A.O.U. Policlinico-OVE, University of Catania, 95125, Catania, Italy
| | - Victoriano Mulero
- Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de MurciaIMIB-Arrixaca, Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Murcia, 30100, Spain
| | - Giovanni Li Volti
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Daniele Tibullo
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Francesco Di Raimondo
- Section of Hematology, Department of Medical and Surgical Specialties, A.O.U. Policlinico-OVE, University of Catania, 95125, Catania, Italy
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24
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Longhitano L, Tibullo D, Giallongo C, Lazzarino G, Tartaglia N, Galimberti S, Li Volti G, Palumbo GA, Liso A. Proteasome Inhibitors as a Possible Therapy for SARS-CoV-2. Int J Mol Sci 2020; 21:ijms21103622. [PMID: 32443911 PMCID: PMC7279248 DOI: 10.3390/ijms21103622] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/14/2020] [Accepted: 05/18/2020] [Indexed: 02/06/2023] Open
Abstract
The COVID-19 global pandemic is caused by SARS-CoV-2, and represents an urgent medical and social issue. Unfortunately, there is still not a single proven effective drug available, and therefore, current therapeutic guidelines recommend supportive care including oxygen administration and treatment with antibiotics. Recently, patients have been also treated with off-label therapies which comprise antiretrovirals, anti-inflammatory compounds, antiparasitic agents and plasma from convalescent patients, all with controversial results. The ubiquitin–proteasome system (UPS) is important for the maintenance of cellular homeostasis, and plays a pivotal role in viral replication processes. In this review, we discuss several aspects of the UPS and the effects of its inhibition with particular regard to the life cycle of the coronaviruses (CoVs). In fact, proteasome inhibition by various chemical compounds, such as MG132, epoxomycin and bortezomib, may reduce the virus entry into the eucariotic cell, the synthesis of RNA, and the subsequent protein expression necessary for CoVs. Importantly, since UPS inhibitors reduce the cytokine storm associated with various inflammatory conditions, it is reasonable to assume that they might be repurposed for SARS-CoV-2, thus providing an additional tool to counteract both virus replication as well as its most deleterious consequences triggered by abnormal immunological response.
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Affiliation(s)
- Lucia Longhitano
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (L.L.); (D.T.)
| | - Daniele Tibullo
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (L.L.); (D.T.)
| | - Cesarina Giallongo
- Section of Haematology, Department of Scienze Mediche Chirurgiche e Tecnologie Avanzate “G.F. Ingrassia”, University of Catania, 95123 Catania, Italy;
- Correspondence: (C.G.); (G.L.V.)
| | - Giacomo Lazzarino
- UniCamillus—Saint Camillus International University of Health Sciences, Via di Sant’Alessandro 8, 00131 Rome, Italy;
| | - Nicola Tartaglia
- Department of Medical and Surgical Sciences, University of Foggia, 71100 Foggia, Italy; (N.T.); (A.L.)
| | - Sara Galimberti
- Section of Hematology, Department of Clinical and Experimental Medicine, University of Pisa, 56121 Pisa, Italy;
| | - Giovanni Li Volti
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (L.L.); (D.T.)
- Correspondence: (C.G.); (G.L.V.)
| | - Giuseppe Alberto Palumbo
- Section of Haematology, Department of Scienze Mediche Chirurgiche e Tecnologie Avanzate “G.F. Ingrassia”, University of Catania, 95123 Catania, Italy;
| | - Arcangelo Liso
- Department of Medical and Surgical Sciences, University of Foggia, 71100 Foggia, Italy; (N.T.); (A.L.)
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25
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Mitochondrial Functions, Energy Metabolism and Protein Glycosylation are Interconnected Processes Mediating Resistance to Bortezomib in Multiple Myeloma Cells. Biomolecules 2020; 10:biom10050696. [PMID: 32365811 PMCID: PMC7277183 DOI: 10.3390/biom10050696] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 03/31/2020] [Accepted: 04/28/2020] [Indexed: 12/18/2022] Open
Abstract
The proteasome inhibitor bortezomib (BTZ) has emerged as an effective drug for the treatment of multiple myeloma even though many patients relapse from BTZ therapy. The present study investigated the metabolic pathways underlying the acquisition of bortezomib resistance in multiple myeloma. We used two different clones of multiple myeloma cell lines exhibiting different sensitivities to BTZ (U266 and U266-R) and compared them in terms of metabolic profile, mitochondrial fitness and redox balance homeostasis capacity. Our results showed that the BTZ-resistant clone (U266-R) presented increased glycosylated UDP-derivatives when compared to BTZ-sensitive cells (U266), thus also suggesting higher activities of the hexosamine biosynthetic pathway (HBP), regulating not only protein O- and N-glycosylation but also mitochondrial functions. Notably, U266-R displayed increased mitochondrial biogenesis and mitochondrial dynamics associated with stronger antioxidant defenses. Furthermore, U266-R maintained a significantly higher concentration of substrates for protein glycosylation when compared to U266, particularly for UDP-GlcNac, thus further suggesting the importance of glycosylation in the BTZ pharmacological response. Moreover, BTZ-treated U266-R showed significantly higher ATP/ADP ratios and levels of ECP and also exhibited increased mitochondrial fitness and antioxidant response. In conclusions, our findings suggest that the HBP may play a major role in mitochondrial fitness, driving BTZ resistance in multiple myeloma and thus representing a possible target for new drug development for BTZ-resistant patients.
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Dafflon C, Gaulis S, Barys L, Kapur K, Cornacchione V, Schukur L, Bergling S, Traggiai E, Jansky S, Hellmann L, Engstler BS, Kerr G, de Weck A, Ruddy DA, Naumann U, Stauffer F, Gaul C, Lin Y, Billy E, Weiss A, Hofmann F, Ito M, Tiedt R. DOT1L inhibition is lethal for multiple myeloma due to perturbation of the endoplasmic reticulum stress pathway. Oncotarget 2020; 11:956-968. [PMID: 32215184 PMCID: PMC7082114 DOI: 10.18632/oncotarget.27493] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 01/29/2020] [Indexed: 12/12/2022] Open
Abstract
The histone 3 lysine 79 (H3K79) methyltransferase (HMT) DOT1L is known to play a critical role for growth and survival of MLL-rearranged leukemia. Serendipitous observations during high-throughput drug screens indicated that the use of DOT1L inhibitors might be expandable to multiple myeloma (MM). Through pharmacologic and genetic experiments, we could validate that DOT1L is essential for growth and viability of a subset of MM cell lines, in line with a recent report from another team. In vivo activity against established MM xenografts was observed with a novel DOT1L inhibitor. In order to understand the molecular mechanism of the dependency in MM, we examined gene expression changes upon DOT1L inhibition in sensitive and insensitive cell lines and discovered that genes belonging to the endoplasmic reticulum (ER) stress pathway and protein synthesis machinery were specifically suppressed in sensitive cells. Whole-genome CRISPR screens in the presence or absence of a DOT1L inhibitor revealed that concomitant targeting of the H3K4me3 methyltransferase SETD1B increases the effect of DOT1L inhibition. Our results provide a strong basis for further investigating DOT1L and SETD1B as targets in MM.
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Affiliation(s)
- Caroline Dafflon
- Novartis Institutes for BioMedical Research (NIBR) Oncology, Basel, Switzerland
| | - Swann Gaulis
- Novartis Institutes for BioMedical Research (NIBR) Oncology, Basel, Switzerland
| | - Louise Barys
- Novartis Institutes for BioMedical Research (NIBR) Oncology, Basel, Switzerland
| | | | | | - Lina Schukur
- Novartis Institutes for BioMedical Research (NIBR) Oncology, Basel, Switzerland
| | | | | | - Selina Jansky
- Novartis Institutes for BioMedical Research (NIBR) Oncology, Basel, Switzerland
| | - Leon Hellmann
- Novartis Institutes for BioMedical Research (NIBR) Oncology, Basel, Switzerland
| | | | - Grainne Kerr
- Novartis Institutes for BioMedical Research (NIBR) Oncology, Basel, Switzerland
| | - Antoine de Weck
- Novartis Institutes for BioMedical Research (NIBR) Oncology, Basel, Switzerland
| | | | - Ulrike Naumann
- NIBR Analytical Sciences and Imaging, Basel, Switzerland
| | | | | | - Ying Lin
- China Novartis Institutes for BioMedical Research, Shanghai, China
| | - Eric Billy
- Novartis Institutes for BioMedical Research (NIBR) Oncology, Basel, Switzerland
| | - Andreas Weiss
- Novartis Institutes for BioMedical Research (NIBR) Oncology, Basel, Switzerland
| | - Francesco Hofmann
- Novartis Institutes for BioMedical Research (NIBR) Oncology, Basel, Switzerland
| | - Moriko Ito
- Novartis Institutes for BioMedical Research (NIBR) Oncology, Basel, Switzerland
| | - Ralph Tiedt
- Novartis Institutes for BioMedical Research (NIBR) Oncology, Basel, Switzerland
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27
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Castruccio Castracani C, Longhitano L, Distefano A, Di Rosa M, Pittalà V, Lupo G, Caruso M, Corona D, Tibullo D, Li Volti G. Heme Oxygenase-1 and Carbon Monoxide Regulate Growth and Progression in Glioblastoma Cells. Mol Neurobiol 2020; 57:2436-2446. [PMID: 32108290 DOI: 10.1007/s12035-020-01869-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 01/06/2020] [Indexed: 01/11/2023]
Abstract
In human glioma tumours, heme oxygenase-1 (HO-1) is overexpressed when compared with normal brain tissues and during oligodendroglioma progression. However, the molecular mechanisms mediated by HO-1 to promote glioblastoma remain unknown. We therefore aimed at investigating the effect of HO-1 expression and its selective enzymatic inhibition in two different cell lines (i.e. A172 and U87-MG). HO-1 was induced by hemin treatment (10 μM), and VP13/47 (100 μM) was used as a specific non-competitive inhibitor of HO-1 activity. Cell proliferation was measured by cell index measurement (xCelligence technology) and clonogenic assay, whereas cell migration was assessed by wound healing assay. Carbon monoxide-releasing molecules (CORMs) (i.e. CORM-3 and CORM-A1) were also used in a separate set of experiments to confirm the effect of HO-1 by-product in glioblastoma progression further. Our results were further validated using GSE4412 microarray dataset analysis and comparing biopsies overexpressing HO-1 with the rest of the cases. Our results showed that hemin was able to induce both HO-1 gene and protein expression in a cell-dependent manner being A172 more responsive to pharmacological upregulation of HO-1. Hemin, but not CORMs treatment, resulted in a significant increase of cell proliferation following 24 h of treatment as measured by increased cell index and colony formation capacity and such effect was abolished by VP13/47. Interestingly, both hemin and CORMs showed a significant effect on the wound healing assay also exhibiting cell specificity. Finally, our dataset analysis showed a positive correlation of HO-1 gene expression with ITGBI and ITGBII which are membrane receptors involved in cell adhesion, embryogenesis, tissue repair, immune response and metastatic diffusion of tumour cells. In conclusion, our data suggest that HO-1 and its by-product CO exhibit a cell-specific effect on various aspects of disease progression and are associated with a complex series of molecular mechanisms driving cell proliferation, survival and metastasis.
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Affiliation(s)
- Carlo Castruccio Castracani
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95125, Catania, Italy
| | - Lucia Longhitano
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95125, Catania, Italy
| | - Alfio Distefano
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95125, Catania, Italy
| | - Michelino Di Rosa
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95125, Catania, Italy
| | - Valeria Pittalà
- Department of Drug Sciences, University of Catania, Viale A. Doria 6, 95125, Catania, Italy
| | - Gabriella Lupo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95125, Catania, Italy
| | - Massimo Caruso
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95125, Catania, Italy
| | - Daniela Corona
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95125, Catania, Italy
| | - Daniele Tibullo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95125, Catania, Italy
| | - Giovanni Li Volti
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95125, Catania, Italy.
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Tracey N, Creedon H, Kemp AJ, Culley J, Muir M, Klinowska T, Brunton VG. HO-1 drives autophagy as a mechanism of resistance against HER2-targeted therapies. Breast Cancer Res Treat 2020; 179:543-555. [PMID: 31705351 PMCID: PMC6997276 DOI: 10.1007/s10549-019-05489-1] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 10/29/2019] [Indexed: 02/06/2023]
Abstract
PURPOSE Targeted therapies have resulted in major advances in the treatment of HER2-positive breast cancers. Despite this, up to 70% of patients will develop resistance to treatment within 2 years and new strategies for targeting resistant disease are needed. METHODS To identify potential resistance mechanisms, we used the mouse MMTV-NIC-PTEN+/- spontaneous model of HER2-positive breast cancer and the pan-HER family kinase inhibitor sapatinib. Vehicle and sapatinib-treated tumors were evaluated by immunohistochemistry and proteomic analysis. In vitro studies were carried out to define the role of heme oxygenase 1 (HO-1) and autophagy in resistance to sapatinib and lapatinib, another pan-HER family kinase inhibitor. RESULTS Treatment of tumor-bearing MMTV-NIC-PTEN+/- mice with sapatinib resulted in delayed tumor progression and increased survival. However, tumors eventually progressed on treatment. Proteomic analysis identified proteins associated with cellular iron homeostasis as being upregulated in the sapatinib-treated tumors. This included HO-1 whose overexpression was confirmed by immunohistochemistry. Overexpression of HO-1 in HER2-expressing SKBR3 breast cancer cells resulted in reduced sensitivity to both pan-HER family kinase inhibitors sapatinib and lapatinib. This was associated with increased autophagy in the HO-1 over-expressing cells. Furthermore, increased autophagy was also seen in the sapatinib-treated tumors. Treatment with autophagy inhibitors was able to increase the sensitivity of the HO-1 over-expressing cells to both lapatinib and sapatinib. CONCLUSION Together these data indicate a role for HO-1-induced autophagy in resistance to pan-HER family kinase inhibitors.
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Affiliation(s)
- Natasha Tracey
- Edinburgh Cancer Research UK Centre, Institute of Genetics & Molecular Medicine, University of Edinburgh, Crewe Road South, Edinburgh, EH4 2XR, UK
| | - Helen Creedon
- Edinburgh Cancer Research UK Centre, Institute of Genetics & Molecular Medicine, University of Edinburgh, Crewe Road South, Edinburgh, EH4 2XR, UK
| | - Alain J Kemp
- Edinburgh Cancer Research UK Centre, Institute of Genetics & Molecular Medicine, University of Edinburgh, Crewe Road South, Edinburgh, EH4 2XR, UK
| | - Jayne Culley
- Edinburgh Cancer Research UK Centre, Institute of Genetics & Molecular Medicine, University of Edinburgh, Crewe Road South, Edinburgh, EH4 2XR, UK
| | - Morwenna Muir
- Edinburgh Cancer Research UK Centre, Institute of Genetics & Molecular Medicine, University of Edinburgh, Crewe Road South, Edinburgh, EH4 2XR, UK
| | | | - Valerie G Brunton
- Edinburgh Cancer Research UK Centre, Institute of Genetics & Molecular Medicine, University of Edinburgh, Crewe Road South, Edinburgh, EH4 2XR, UK.
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Lee YS, Kalimuthu K, Seok Park Y, Makala H, Watkins SC, Choudry MHA, Bartlett DL, Tae Kwon Y, Lee YJ. Ferroptotic agent-induced endoplasmic reticulum stress response plays a pivotal role in the autophagic process outcome. J Cell Physiol 2020; 235:6767-6778. [PMID: 31985039 DOI: 10.1002/jcp.29571] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 01/13/2020] [Indexed: 01/17/2023]
Abstract
Ferroptosis has been reported as a unique form of cell death. However, in recent years, researchers have increasingly challenged the uniqueness of ferroptosis compared to other types of cell death. In this study, we examined whether ferroptosis shares cell death pathways with other types of cell death, especially autophagy, via the autophagic process. Here, we observed that ferroptosis inducers (artesunate [ART] and erastin [ERA]) and autophagy inducers (bortezomib [BOR] and XIE62-1004) led to autophagosome formation via the endoplasmic reticulum (ER) stress response. Unlike XIE62-1004, ART, ERA, and BOR, which affect glutathione production or utilization, induced oxidative stress responses-an increase in the levels of heme oxygenase-1 and lipid peroxidation. Oxidative stress responses were attenuated by deletion of autophagy-related gene-5 or treatment with autophagy inhibitors (bafilomycin and chloroquine). Our studies provide an overview of common death pathways-the ER stress response-associated autophagic process in ferroptosis and autophagy. We also highlight the role played by glutathione redox system in the outcome of the autophagic process.
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Affiliation(s)
- Young-Sun Lee
- Department of Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Kalishwaralal Kalimuthu
- Department of Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Yong Seok Park
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Hima Makala
- Department of Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Simon C Watkins
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - M Haroon A Choudry
- Department of Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - David L Bartlett
- Department of Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Yong Tae Kwon
- Protein Metabolism Medical Research Center and Department of Biomedical Science, College of Medicine, Seoul National University, Seoul, Republic of Korea
| | - Yong J Lee
- Department of Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
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Fresta CG, Fidilio A, Lazzarino G, Musso N, Grasso M, Merlo S, Amorini AM, Bucolo C, Tavazzi B, Lazzarino G, Lunte SM, Caraci F, Caruso G. Modulation of Pro-Oxidant and Pro-Inflammatory Activities of M1 Macrophages by the Natural Dipeptide Carnosine. Int J Mol Sci 2020; 21:ijms21030776. [PMID: 31991717 PMCID: PMC7038063 DOI: 10.3390/ijms21030776] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 12/23/2019] [Accepted: 01/22/2020] [Indexed: 12/21/2022] Open
Abstract
Carnosine is a natural endogenous dipeptide widely distributed in mammalian tissues, existing at particularly high concentrations in the muscles and brain and possesses well-characterized antioxidant and anti-inflammatory activities. In an in vitro model of macrophage activation, induced by lipopolysaccharide + interferon-gamma (LPS + IFN-γ), we here report the ability of carnosine to modulate pro-oxidant and pro-inflammatory activities of macrophages, representing the primary cell type that is activated as a part of the immune response. An ample set of parameters aimed to evaluate cytotoxicity (MTT assay), energy metabolism (HPLC), gene expressions (high-throughput real-time PCR (qRT-PCR)), protein expressions (western blot) and nitric oxide production (qRT-PCR and HPLC), was used to assess the effects of carnosine on activated macrophages challenged with a non cytotoxic LPS (100 ng/mL) + IFN-γ (600 U/mL) concentration. In our experimental model, main carnosine beneficial effects were: (1) the modulation of nitric oxide production and metabolism; (2) the amelioration of the macrophage energy state; (3) the decrease of the expressions of pro-oxidant enzymes (Nox-2, Cox-2) and of the lipid peroxidation product malondialdehyde; (4) the restoration and/or increase of the expressions of antioxidant enzymes (Gpx1, SOD-2 and Cat); (5) the increase of the transforming growth factor-β1 (TGF-β1) and the down-regulation of the expressions of interleukins 1β and 6 (IL-1β and IL-6) and 6) the increase of the expressions of Nuclear factor (erythroid-derived 2)-like 2 (Nrf2) and heme oxygenase-1 (HO-1). According to these results carnosine is worth being tested in the treatment of diseases characterized by elevated levels of oxidative stress and inflammation (atherosclerosis, cancer, depression, metabolic syndrome, and neurodegenerative diseases).
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Affiliation(s)
- Claudia G. Fresta
- Ralph N. Adams Institute for Bioanalytical Chemistry, University of Kansas, Lawrence, KS 66047-1620, USA; (C.G.F.); (S.M.L.)
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS 66047-1620, USA
| | - Annamaria Fidilio
- Department of Drug Sciences, University of Catania, 95125 Catania, Italy; (A.F.); (M.G.); (F.C.)
| | - Giacomo Lazzarino
- UniCamillus—Saint Camillus International University of Health Sciences, 00131 Rome, Italy;
| | - Nicolò Musso
- Bio-nanotech Research and Innovation Tower (BRIT), University of Catania, 95125 Catania, Italy;
| | - Margherita Grasso
- Department of Drug Sciences, University of Catania, 95125 Catania, Italy; (A.F.); (M.G.); (F.C.)
- Oasi Research Institute—IRCCS, 94018 Troina (EN), Italy
| | - Sara Merlo
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95125 Catania, Italy; (S.M.); (A.M.A.); (C.B.)
| | - Angela M. Amorini
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95125 Catania, Italy; (S.M.); (A.M.A.); (C.B.)
| | - Claudio Bucolo
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95125 Catania, Italy; (S.M.); (A.M.A.); (C.B.)
| | - Barbara Tavazzi
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, 00168 Rome, Italy;
- Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy
| | - Giuseppe Lazzarino
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95125 Catania, Italy; (S.M.); (A.M.A.); (C.B.)
- Correspondence: (G.L.); (G.C.)
| | - Susan M. Lunte
- Ralph N. Adams Institute for Bioanalytical Chemistry, University of Kansas, Lawrence, KS 66047-1620, USA; (C.G.F.); (S.M.L.)
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS 66047-1620, USA
- Department of Chemistry, University of Kansas, Lawrence, KS 66047-1620, USA
| | - Filippo Caraci
- Department of Drug Sciences, University of Catania, 95125 Catania, Italy; (A.F.); (M.G.); (F.C.)
- Oasi Research Institute—IRCCS, 94018 Troina (EN), Italy
| | - Giuseppe Caruso
- Oasi Research Institute—IRCCS, 94018 Troina (EN), Italy
- Correspondence: (G.L.); (G.C.)
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Raffaele M, Pittalà V, Zingales V, Barbagallo I, Salerno L, Li Volti G, Romeo G, Carota G, Sorrenti V, Vanella L. Heme Oxygenase-1 Inhibition Sensitizes Human Prostate Cancer Cells towards Glucose Deprivation and Metformin-Mediated Cell Death. Int J Mol Sci 2019; 20:ijms20102593. [PMID: 31137785 PMCID: PMC6566853 DOI: 10.3390/ijms20102593] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 05/16/2019] [Accepted: 05/23/2019] [Indexed: 12/11/2022] Open
Abstract
High levels of heme oxygenase (HO)-1 have been frequently reported in different human cancers, playing a major role in drug resistance and regulation of cancer cell redox homeostasis. Metformin (MET), a drug widely used for type 2 diabetes, has recently gained interest for treating several cancers. Recent studies indicated that the anti-proliferative effects of metformin in cancer cells are highly dependent on glucose concentration. The present work was directed to determine whether use of a specific inhibitor of HO-1 activity, alone or in combination with metformin, affected metastatic prostate cancer cell viability under different concentrations of glucose. MTT assay and the xCELLigence system were used to evaluate cell viability and cell proliferation in DU145 human prostate cancer cells. Cell apoptosis and reactive oxygen species were analyzed by flow cytometry. The activity of HO-1 was inhibited using a selective imidazole-based inhibitor; genes associated with antioxidant systems and cell death were evaluated by qRT-PCR. Our study demonstrates that metformin suppressed prostate cancer growth in vitro and increased oxidative stress. Disrupting the antioxidant HO-1 activity, especially under low glucose concentration, could be an attractive approach to potentiate metformin antineoplastic effects and could provide a biochemical basis for developing HO-1-targeting drugs against solid tumors.
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Affiliation(s)
- Marco Raffaele
- Department of Drug Science, Biochemistry Section, University of Catania, 95125 Catania, Italy.
| | - Valeria Pittalà
- Department of Drug Science, Pharmaceutical Chemistry Section, University of Catania, 95125 Catania, Italy.
| | - Veronica Zingales
- Department of Drug Science, Biochemistry Section, University of Catania, 95125 Catania, Italy.
| | - Ignazio Barbagallo
- Department of Drug Science, Biochemistry Section, University of Catania, 95125 Catania, Italy.
| | - Loredana Salerno
- Department of Drug Science, Pharmaceutical Chemistry Section, University of Catania, 95125 Catania, Italy.
| | - Giovanni Li Volti
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95125 Catania, Italy.
| | - Giuseppe Romeo
- Department of Drug Science, Pharmaceutical Chemistry Section, University of Catania, 95125 Catania, Italy.
| | - Giuseppe Carota
- Department of Drug Science, Biochemistry Section, University of Catania, 95125 Catania, Italy.
| | - Valeria Sorrenti
- Department of Drug Science, Biochemistry Section, University of Catania, 95125 Catania, Italy.
| | - Luca Vanella
- Department of Drug Science, Biochemistry Section, University of Catania, 95125 Catania, Italy.
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Ethanol-Mediated Stress Promotes Autophagic Survival and Aggressiveness of Colon Cancer Cells via Activation of Nrf2/HO-1 Pathway. Cancers (Basel) 2019; 11:cancers11040505. [PMID: 30974805 PMCID: PMC6521343 DOI: 10.3390/cancers11040505] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 04/05/2019] [Accepted: 04/07/2019] [Indexed: 12/25/2022] Open
Abstract
Epidemiological studies suggest that chronic alcohol consumption is a lifestyle risk factor strongly associated with colorectal cancer development and progression. The aim of the present study was to examine the effect of ethanol (EtOH) on survival and progression of three different colon cancer cell lines (HCT116, HT29, and Caco-2). Our data showed that EtOH induces oxidative and endoplasmic reticulum (ER) stress, as demonstrated by reactive oxygen species (ROS) and ER stress markers Grp78, ATF6, PERK and, CHOP increase. Moreover, EtOH triggers an autophagic response which is accompanied by the upregulation of beclin, LC3-II, ATG7, and p62 proteins. The addition of the antioxidant N-acetylcysteine significantly prevents autophagy, suggesting that autophagy is triggered by oxidative stress as a prosurvival response. EtOH treatment also upregulates the antioxidant enzymes SOD, catalase, and heme oxygenase (HO-1) and promotes the nuclear translocation of both Nrf2 and HO-1. Interestingly, EtOH also upregulates the levels of matrix metalloproteases (MMP2 and MMP9) and VEGF. Nrf2 silencing or preventing HO-1 nuclear translocation by the protease inhibitor E64d abrogates the EtOH-induced increase in the antioxidant enzyme levels as well as the migration markers. Taken together, our results suggest that EtOH mediates both the activation of Nrf2 and HO-1 to sustain colon cancer cell survival, thus leading to the acquisition of a more aggressive phenotype.
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Carota G, Sferrazzo G, Spampinato M, Sorrenti V, Vanella L. Antiproliferative Effects of Ellagic Acid on DU145 Cells. Open Biochem J 2019. [DOI: 10.2174/1874091x01913010023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background:Prostate Cancer (PC) represents a leading cause of tumor-related death among men in the Western world. Above all, DU145 cell line represents the most particular cells model of PC, derived from a central nervous system metastasis. In recent years, functional and healthy diet has gained a pivotal role in society, allowing the possibility to deal with cancer before its emergence or progression, profiting by anti-tumor properties of dietary phytochemicals. Among them, Ellagic Acid (EA) is found in several fruits and vegetables, whose juice demonstrated antioxidant, anti-carcinogenic and anti-fibrotic properties.Methods:DU145 prostate cancer cell line was used to determine the effects of ellagic acid on cell viability. In order to evaluate metastatic feature of DU145, VEGF-A and OPG levels by ELISA assay were assessed. Expression of β-catenin, HO-1, HO-2 and SIRT1, markers of proliferative and defense capacities, were determined by western blotting. To strengthen the study, cell transfection with siRNA β-catenin was performed.Results:In the presence of EA, the viability of DU145 cells was reduced by about 40 and 50%, respectively after the exposure to 50 and 100 μM concentrations. We also observed a reduction of both levels of VEGF-A and OPG, confirming the important role of EA in facing the metastasis development. EA treatment (50 μM) induced a significant reduction of β-catenin and SIRT1 levels and, similarly, there was a decrease of HO protein expression, more pronounced for HO-2, showing EA activity on the proliferative feature of DU145 cells. Knockdown of β-catenin by siRNA, in the presence of EA treatment, inhibited cell proliferation.Conclusion:Ellagic acid exhibits significant antiproliferative effects in ourin vitromodel of prostate cancer’s metastasis, suggesting that, the use of EA as a multitarget natural compound, may represent a possible strategy for cancer chemoprevention.
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A Dual Role of Heme Oxygenase-1 in Cancer Cells. Int J Mol Sci 2018; 20:ijms20010039. [PMID: 30583467 PMCID: PMC6337503 DOI: 10.3390/ijms20010039] [Citation(s) in RCA: 283] [Impact Index Per Article: 47.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 12/18/2018] [Accepted: 12/19/2018] [Indexed: 02/06/2023] Open
Abstract
Heme oxygenase (HO)-1 is known to metabolize heme into biliverdin/bilirubin, carbon monoxide, and ferrous iron, and it has been suggested to demonstrate cytoprotective effects against various stress-related conditions. HO-1 is commonly regarded as a survival molecule, exerting an important role in cancer progression and its inhibition is considered beneficial in a number of cancers. However, increasing studies have shown a dark side of HO-1, in which HO-1 acts as a critical mediator in ferroptosis induction and plays a causative factor for the progression of several diseases. Ferroptosis is a newly identified iron- and lipid peroxidation-dependent cell death. The critical role of HO-1 in heme metabolism makes it an important candidate to mediate protective or detrimental effects via ferroptosis induction. This review summarizes the current understanding on the regulatory mechanisms of HO-1 in ferroptosis. The amount of cellular iron and reactive oxygen species (ROS) is the determinative momentum for the role of HO-1, in which excessive cellular iron and ROS tend to enforce HO-1 from a protective role to a perpetrator. Despite the dark side that is related to cell death, there is a prospective application of HO-1 to mediate ferroptosis for cancer therapy as a chemotherapeutic strategy against tumors.
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Heme Oxygenase Inhibition Sensitizes Neuroblastoma Cells to Carfilzomib. Mol Neurobiol 2018; 56:1451-1460. [PMID: 29948946 DOI: 10.1007/s12035-018-1133-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 05/15/2018] [Indexed: 10/14/2022]
Abstract
Neuroblastoma (NB) is an embryonic malignancy affecting the physiological development of adrenal medulla and paravertebral sympathetic ganglia in early infancy. Proteasome inhibitors (PIs) (i.e., carfilzomib (CFZ)) may represent a possible pharmacological treatment for solid tumors including NB. In the present study, we tested the effect of a novel non-competitive inhibitor of heme oxygenase-1 (HO-1), LS1/71, as a possible adjuvant therapy for the efficacy of CFZ in neuroblastoma cells. Our results showed that CFZ increased both HO-1 gene expression (about 18-fold) and HO activity (about 8-fold), following activation of the ER stress pathway. The involvement of HO-1 in CFZ-mediated cytotoxicity was further confirmed by the protective effect of pharmacological induction of HO-1, significantly attenuating cytotoxicity. In addition, HO-1 selective inhibition by a specific siRNA increased the cytotoxic effect following CFZ treatment in NB whereas SnMP, a competitive pharmacological inhibitor of HO, showed no changes in cytotoxicity. Our data suggest that treatment with CFZ produces ER stress in NB without activation of CHOP-mediated apoptosis, whereas co-treatment with CFZ and LS1/71 led to apoptosis activation and CHOP expression induction. In conclusion, our study showed that treatment with the non-competitive inhibitor of HO-1, LS1 / 71, increased cytotoxicity mediated by CFZ, triggering apoptosis following ER stress activation. These results suggest that PIs may represent a possible pharmacological treatment for solid tumors and that HO-1 inhibition may represent a possible strategy to overcome chemoresistance and increase the efficacy of chemotherapic regimens.
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Floresta G, Amata E, Dichiara M, Marrazzo A, Salerno L, Romeo G, Prezzavento O, Pittalà V, Rescifina A. Identification of Potentially Potent Heme Oxygenase 1 Inhibitors through 3D-QSAR Coupled to Scaffold-Hopping Analysis. ChemMedChem 2018; 13:1336-1342. [DOI: 10.1002/cmdc.201800176] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 04/21/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Giuseppe Floresta
- Department of Drug Sciences; University of Catania; Viale A. Doria 6 95125 Catania Italy
- Department of Chemical Sciences; University of Catania; Viale A. Doria 6 95125 Catania Italy
| | - Emanuele Amata
- Department of Drug Sciences; University of Catania; Viale A. Doria 6 95125 Catania Italy
| | - Maria Dichiara
- Department of Drug Sciences; University of Catania; Viale A. Doria 6 95125 Catania Italy
| | - Agostino Marrazzo
- Department of Drug Sciences; University of Catania; Viale A. Doria 6 95125 Catania Italy
| | - Loredana Salerno
- Department of Drug Sciences; University of Catania; Viale A. Doria 6 95125 Catania Italy
| | - Giuseppe Romeo
- Department of Drug Sciences; University of Catania; Viale A. Doria 6 95125 Catania Italy
| | - Orazio Prezzavento
- Department of Drug Sciences; University of Catania; Viale A. Doria 6 95125 Catania Italy
| | - Valeria Pittalà
- Department of Drug Sciences; University of Catania; Viale A. Doria 6 95125 Catania Italy
| | - Antonio Rescifina
- Department of Drug Sciences; University of Catania; Viale A. Doria 6 95125 Catania Italy
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Manni S, Carrino M, Semenzato G, Piazza F. Old and Young Actors Playing Novel Roles in the Drama of Multiple Myeloma Bone Marrow Microenvironment Dependent Drug Resistance. Int J Mol Sci 2018; 19:ijms19051512. [PMID: 29783691 PMCID: PMC5983700 DOI: 10.3390/ijms19051512] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 05/15/2018] [Accepted: 05/15/2018] [Indexed: 12/19/2022] Open
Abstract
Multiple myeloma (MM) is the second most frequent hematologic cancer. In addition to the deleterious effects of neoplastic plasma cell growth and spreading during the disease evolution, this tumor is characterized by the serious pathological consequences due to the massive secretion of monoclonal immunoglobulins and by the derangement of bone physiology with progressive weakening of the skeleton. Despite significant progresses having been made in the last two decades in the therapeutic management of this plasma cell tumor, MM remains invariably lethal, due to its extremely complex genetic architecture and to the constant protection it receives from the tumor niche, which is represented by the bone marrow microenvironment. While it is predictable that the discovery of novel therapies against the first of these two pathobiological features will take a longer time, the identification of the cellular and molecular mechanisms underlying the pro-growth effects of the myeloma milieu is a task that could lead to the development of novel treatments in a shorter timeframe. In this regard, aside from known “old” determinants of the cross-talk between bone marrow and MM cells, “young” cellular and molecular factors are now emerging, taking the scene of this complex neoplastic setting. In this review we aimed at giving insights on the latest evidence of potentially-targetable modes that MM cells exploit to increase fitness and gain a survival advantage. The benefits coming from the derangements of stress-managing pathways, autophagy, transcriptional rewiring, and non-coding RNAs are examples of such methods that MM cells utilize to escape cell death, but that hopefully will offer novel targets for the ever-increasing anti-MM therapeutic armamentarium.
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Affiliation(s)
- Sabrina Manni
- Department of Medicine, Hematology Section, University of Padova, Via N.Giustiniani 2, 35128 Padova, Italy.
- Venetian Institute of Molecular Medicine, Via G.Orus 2, 35129 Padova, Italy.
| | - Marilena Carrino
- Department of Medicine, Hematology Section, University of Padova, Via N.Giustiniani 2, 35128 Padova, Italy.
- Venetian Institute of Molecular Medicine, Via G.Orus 2, 35129 Padova, Italy.
| | - Gianpietro Semenzato
- Department of Medicine, Hematology Section, University of Padova, Via N.Giustiniani 2, 35128 Padova, Italy.
- Venetian Institute of Molecular Medicine, Via G.Orus 2, 35129 Padova, Italy.
| | - Francesco Piazza
- Department of Medicine, Hematology Section, University of Padova, Via N.Giustiniani 2, 35128 Padova, Italy.
- Venetian Institute of Molecular Medicine, Via G.Orus 2, 35129 Padova, Italy.
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Vanella L, Barbagallo I, Tibullo D, Forte S, Zappalà A, Li Volti G. The non-canonical functions of the heme oxygenases. Oncotarget 2018; 7:69075-69086. [PMID: 27626166 PMCID: PMC5356613 DOI: 10.18632/oncotarget.11923] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 09/05/2016] [Indexed: 11/25/2022] Open
Abstract
Heme oxygenase (HO) isoforms catalyze the conversion of heme to carbon monoxide (CO) and biliverdin with a concurrent release of iron, which can drive the synthesis of ferritin for iron sequestration. Most of the studies so far were directed at evaluating the protective effect of these enzymes because of their ability to generate antioxidant and antiapoptotic molecules such as CO and bilirubin. Recent evidences are suggesting that HO may possess other important physiological functions, which are not related to its enzymatic activity and for which we would like to introduce for the first time the term “non canonical functions”. Recent evidence suggest that both HO isoforms may form protein-protein interactions (i.e. cytochrome P450, adiponectin, CD91) thus serving as chaperone-like protein. In addition, truncated HO-1 isoform was localized in the nuclear compartment under certain experimental conditions (i.e. excitotoxicity, hypoxia) regulating the activity of important nuclear transcription factors (i.e. Nrf2) and DNA repair. In the present review, we discuss three potential signaling mechanisms that we refer to as the non-canonical functions of the HO isoforms: protein-protein interaction, intracellular compartmentalization, and extracellular secretion. The aim of the present review is to describe each of this mechanism and all the aspects warranting additional studies in order to unravel all the functions of the HO system.
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Affiliation(s)
- Luca Vanella
- Department of Drug Sciences, University of Catania, Catania, Italy
| | | | - Daniele Tibullo
- Division of Haematology, AOU "Policlinico - Vittorio Emanuele", University of Catania, Catania, Italy
| | - Stefano Forte
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy.,Istituto Oncologico del Mediterraneo Ricerca srl Viagrande, Catania, Italy
| | - Agata Zappalà
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Giovanni Li Volti
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy.,EuroMediterranean Institute of Science and Technology, Palermo, Italy
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Heme oxygenase-1 mediates BAY 11–7085 induced ferroptosis. Cancer Lett 2018; 416:124-137. [DOI: 10.1016/j.canlet.2017.12.025] [Citation(s) in RCA: 191] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Revised: 12/12/2017] [Accepted: 12/17/2017] [Indexed: 02/06/2023]
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Salerno L, Amata E, Romeo G, Marrazzo A, Prezzavento O, Floresta G, Sorrenti V, Barbagallo I, Rescifina A, Pittalà V. Potholing of the hydrophobic heme oxygenase-1 western region for the search of potent and selective imidazole-based inhibitors. Eur J Med Chem 2018; 148:54-62. [PMID: 29454190 DOI: 10.1016/j.ejmech.2018.02.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 01/29/2018] [Accepted: 02/03/2018] [Indexed: 10/18/2022]
Abstract
Here we report the design, synthesis, and molecular modeling of new potent and selective imidazole-based HO-1 inhibitors in which the imidazole nucleus and the hydrophobic groups are linked by a phenylethanolic spacer. Most of the tested compounds showed a good inhibitor activity with IC50 values in the low micromolar range, with two of them (1b and 1j) exhibiting also high selectivity toward HO-2. These results were obtained by the idea of potholing the entire volume of the principal hydrophobic western region with an appropriate ligand volume. Molecular modeling studies showed that these molecules bind to the HO-1 in the consolidated fashion where the imidazolyl moiety coordinates the heme iron while the aromatic groups are stabilized by hydrophobic interaction in the western region of the binding pocket. Finally, the synthesized compounds were analyzed for in silico ADME-Tox properties to establish oral drug-like behavior and showed satisfactory results.
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Affiliation(s)
- Loredana Salerno
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125, Catania, Italy
| | - Emanuele Amata
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125, Catania, Italy
| | - Giuseppe Romeo
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125, Catania, Italy
| | - Agostino Marrazzo
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125, Catania, Italy
| | - Orazio Prezzavento
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125, Catania, Italy
| | - Giuseppe Floresta
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125, Catania, Italy; Department of Chemical Sciences, University of Catania, V.le A. Doria, 95125, Catania, Italy
| | - Valeria Sorrenti
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125, Catania, Italy
| | - Ignazio Barbagallo
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125, Catania, Italy
| | - Antonio Rescifina
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125, Catania, Italy.
| | - Valeria Pittalà
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125, Catania, Italy.
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41
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Chen M, Ren L, Meng Y, Shi L, Chen L, Yu B, Wu Q, Qi G. The protease inhibitor E64d improves ox-LDL-induced endothelial dysfunction in human aortic endothelial cells. Can J Physiol Pharmacol 2018; 96:120-127. [PMID: 28854341 DOI: 10.1139/cjpp-2017-0016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Oxidized low-density lipoprotein (ox-LDL)-induced endothelial dysfunction in human vascular endothelial cells contributes to the development of atherosclerosis. E64d, a cysteine protease inhibitor, blocks the elastolytic activity of cathepsin essential for vascular matrix remodeling and reduces neurovascular endothelial apoptosis. The objective of this study was to investigate the effects and the underling mechanisms of E64d on ox-LDL-induced endothelial dysfunction in human aortic endothelial cells (HAECs). HAECs were treated with various concentrations of ox-LDL (0–200 mg/L) for 24 h with or without E64d. The results showed that E64d attenuated ox-LDL-induced increase in soluble intercellular adhesion molecule-1 (sICAM-1) concentration and reduction in endothelial nitric oxide synthase (eNOS) expression, prevented ox-LDL-induced reduction in cell viability and migration ability of HAECs. E64d decreased the protein expression of cathepsin B (CTSB), Beclin 1, and microtubule-associated protein light chain 3 (LC3)-II, but not p62. LC3 puncta and autophagosome formation were also reduced by E64d in HAECs. Moreover, E64d decreased the production of MDA and increased the activity of SOD. The results showed that E64d ameliorated ox-LDL-induced endothelial dysfunction in HAECs.
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Affiliation(s)
- Min Chen
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Lina Ren
- Department of Geriatrics, The First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Yanyan Meng
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Liye Shi
- Department of Geriatrics, The First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Ling Chen
- Department of Geriatrics, The First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Bo Yu
- Department of Cardiology, The 2nd Affiliated Hospital of Harbin Medical University, Harbin 150086, Heilongjiang Province, China
- The Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Harbin 150086, Heilongjiang Province, China
| | - Qianqian Wu
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Guoxian Qi
- Department of Geriatrics, The First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
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Multi-kinase inhibitors interact with sildenafil and ERBB1/2/4 inhibitors to kill tumor cells in vitro and in vivo. Oncotarget 2018; 7:40398-40417. [PMID: 27259258 PMCID: PMC5130016 DOI: 10.18632/oncotarget.9752] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 05/20/2016] [Indexed: 01/12/2023] Open
Abstract
We have recently demonstrated that multi-kinase inhibitors such as sorafenib and pazopanib can suppress the detection of chaperones by in situ immuno-fluorescence, which is further enhanced by phosphodiesterase 5 inhibitors. Sorafenib and pazopanib inhibited the HSP90 ATPase activity with IC50 values of ~1.0 μM and ~75 nM, respectively. Pazopanib docked in silico with two possible poses into the HSP90 ATP binding pocket. Pazopanib and sildenafil combined to reduce the total protein levels of HSP1H/p105 and c-MYC and to reduce their co-localization. Sorafenib/pazopanib combined with sildenafil in a [GRP78+HSP27] –dependent fashion to: (i) profoundly activate an eIF2α/Beclin1 pathway; (ii) profoundly inactivate mTOR and increase ATG13 phosphorylation, collectively resulting in the formation of toxic autophagosomes. In a fresh PDX isolate of NSCLC combined knock down of [ERBB1+ERBB3] or use of the ERBB1/2/4 inhibitor afatinib altered cell morphology, enhanced ATG13 phosphorylation, inactivated NFκB, and further enhanced [sorafenib/pazopanib + sildenafil] lethality. Identical data to that with afatinib were obtained knocking down PI3K p110α/β or using buparlisib, copanlisib or the specific p110α inhibitor BYL719. Afatinib adapted NSCLC clones were resistant to buparlisib or copanlisib but were more sensitive than control clones to [sorafenib + sildenafil] or [pazopanib + sildenafil]. Lapatinib significantly enhanced the anti-tumor effect of [regorafenib + sildenafil] in vivo; afatinib and BYL719 enhanced the anti-tumor effects of [sorafenib + sildenafil] and [pazopanib] in vivo, respectively.
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43
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Redox-Dependent Circuits Regulating B Lymphocyte Physiology. Immunology 2018. [DOI: 10.1016/b978-0-12-809819-6.00013-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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44
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Schaefer B, Moriishi K, Behrends S. Insights into the mechanism of isoenzyme-specific signal peptide peptidase-mediated translocation of heme oxygenase. PLoS One 2017; 12:e0188344. [PMID: 29155886 PMCID: PMC5695791 DOI: 10.1371/journal.pone.0188344] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 11/06/2017] [Indexed: 11/19/2022] Open
Abstract
It has recently been shown that signal peptide peptidase (SPP) can catalyze the intramembrane cleavage of heme oxygenase-1 (HO-1) that leads to translocation of HO-1 into the cytosol and nucleus. While there is consensus that translocated HO-1 promotes tumor progression and drug resistance, the physiological signals leading to SPP-mediated intramembrane cleavage of HO-1 and the specificity of the process remain unclear. In this study, we used co-immunoprecipitation and confocal laser scanning microscopy to investigate the translocation mechanism of HO-1 and its regulation by SPP. We show that HO-1 and the closely related HO-2 isoenzyme bind to SPP under normoxic conditions. Under hypoxic conditions SPP mediates intramembrane cleavage of HO-1, but not HO-2. In experiments with an inactive HO-1 mutant (H25A) we show that translocation is independent of the catalytic activity of HO-1. Studies with HO-1 / HO-2 chimeras indicate that the membrane anchor, the PEST-domain and the nuclear shuttle sequence of HO-1 are necessary for full cleavage and subsequent translocation under hypoxic conditions. In the presence of co-expressed exogenous SPP, the anchor and the PEST-domain are sufficient for translocation. Taken together, we identified the domains involved in HO-1 translocation and showed that SPP-mediated cleavage is isoform-specific and independent of HO-activity. A closer understanding of the translocation mechanism of HO-1 is of particular importance because nuclear HO-1 seems to lead to tumor progression and drug resistance.
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Affiliation(s)
- Bianca Schaefer
- Department of Pharmacology, Toxicology and Clinical Pharmacy, University of Braunschweig—Institute of Technology, Braunschweig, Germany
| | - Kohji Moriishi
- Department of Microbiology, Faculty of Medicine Yamanashi University, Yamanashi, Japan
| | - Soenke Behrends
- Department of Pharmacology, Toxicology and Clinical Pharmacy, University of Braunschweig—Institute of Technology, Braunschweig, Germany
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Hsu FF, Chiang MT, Li FA, Yeh CT, Lee WH, Chau LY. Acetylation is essential for nuclear heme oxygenase-1-enhanced tumor growth and invasiveness. Oncogene 2017; 36:6805-6814. [PMID: 28846111 DOI: 10.1038/onc.2017.294] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 06/19/2017] [Accepted: 07/17/2017] [Indexed: 12/12/2022]
Abstract
Overexpression of heme oxygenase-1 (HO-1), an endoplasmic reticulum-anchored enzyme, is observed in many cancers. HO-1 nuclear translocation has been shown to correlate with progression of several cancers. We recently reported that HO-1 is susceptible to intramembrane proteolysis and translocates to the nucleus to promote cancer growth and invasiveness without depending on its enzymatic activity. In the present study, we show that the HO-1 lacking C-terminal transmembrane segment (t-HO-1) was susceptible to acetylation by p300 and CREB-binding protein (CBP) histone acetyltransferase in the nucleus. Mass spectrometry analysis of HO-1 isolated from human embryonic kidney cells 293T (HEK293T) cells overexpressing CBP and t-HO-1 revealed two acetylation sites located at K243 and K256. Mutation of both lysine residues to arginine (R) abolished t-HO-1-enhanced tumor cell growth, migration and invasion. However, mutation of the lysine residues to glutamine (Q), a mimic of acetylated lysine, had no significant effect on t-HO-1-mediated tumorigenicity. Mechanistic studies demonstrated that transcriptional factor JunD interacted with wild-type (WT) t-HO-1 and mutant carrying K243/256Q but not K243/256 R mutation. Moreover, JunD-induced AP-1 transcriptional activity was significantly enhanced by coexpression with WT and acetylation-mimic but not acetylation-defective t-HO-1. Consistent with the in vitro observations, the implication of K243/256 acetylation in t-HO-1-enhanced tumorigenicity was also demonstrated in xenograft models. Immunohistochemistry performed with a specific antibody against acetyl-HO-1 showed the positive acetyl-HO-1 nuclear staining in human lung cancer tissues but not in the corresponding non-tumor tissues, supporting its clinical significance. Collectively, our findings highlight the importance of nuclear HO-1 post-translational modification in the induction of cancer progression.
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Affiliation(s)
- F-F Hsu
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - M-T Chiang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - F-A Li
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - C-T Yeh
- Cancer Center, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - W-H Lee
- Cancer Center, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - L-Y Chau
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
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46
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Li Volti G, Tibullo D, Vanella L, Giallongo C, Di Raimondo F, Forte S, Di Rosa M, Signorelli SS, Barbagallo I. The Heme Oxygenase System in Hematological Malignancies. Antioxid Redox Signal 2017; 27:363-377. [PMID: 28257621 DOI: 10.1089/ars.2016.6735] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
SIGNIFICANCE Several lines of evidence suggest that hematological malignancies exhibit an altered redox balance homeostasis that can lead to the activation of various survival pathways that, in turn, lead to the progression of disease and chemoresistance. Among these pathways, the heme oxygenase-1 (HO-1) pathway is likely to play a major role. HO catalyzes the enzymatic degradation of heme with the simultaneous release of carbon monoxide (CO), ferrous iron (Fe2+), and biliverdin. This review focuses on the role of HO-1 in various hematological malignancies and the possibility of exploiting such targets to improve the outcome of well-established chemotherapeutic regimens. Recent Advances and Critical Issues: Interestingly, the inhibition of the expression of HO-1 (e.g., with siRNA) or HO activity (with competitive inhibitors) contributes to the increased efficacy of chemotherapy and improves the outcome in animal models. Furthermore, some hematological malignancies (e.g., chronic myeloid leukemia and multiple myeloma) have served to explore the non-canonical functions of HO-1, such as the association between nuclear compartmentalization and genetic instability and/or chemoresistance. FUTURE DIRECTIONS The HO system may serve as an important tool in the field of hematological malignancies because it can be exploited to counteract chemoresistance and to monitor the outcome of bone marrow transplants and may be an additional target for combined therapies. Antioxid. Redox Signal. 27, 363-377.
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Affiliation(s)
- Giovanni Li Volti
- 1 Department of Biomedical and Biotechnological Sciences, University of Catania , Catania, Italy .,2 EuroMediterranean Institute of Science and Technology , Palermo, Italy
| | - Daniele Tibullo
- 3 Division of Haematology, AOU "Policlinico - Vittorio Emanuele", University of Catania , Catania, Italy
| | - Luca Vanella
- 4 Department of Drug Sciences, University of Catania , Catania, Italy
| | - Cesarina Giallongo
- 3 Division of Haematology, AOU "Policlinico - Vittorio Emanuele", University of Catania , Catania, Italy
| | - Francesco Di Raimondo
- 3 Division of Haematology, AOU "Policlinico - Vittorio Emanuele", University of Catania , Catania, Italy
| | - Stefano Forte
- 1 Department of Biomedical and Biotechnological Sciences, University of Catania , Catania, Italy .,5 Istituto Oncologico del Mediterraneo Ricerca srl Viagrande , Catania, Italy
| | - Michelino Di Rosa
- 1 Department of Biomedical and Biotechnological Sciences, University of Catania , Catania, Italy
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47
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Translocation of heme oxygenase-1 contributes to imatinib resistance in chronic myelogenous leukemia. Oncotarget 2017; 8:67406-67421. [PMID: 28978042 PMCID: PMC5620182 DOI: 10.18632/oncotarget.18684] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 05/23/2017] [Indexed: 02/03/2023] Open
Abstract
Heme oxygenase-1 (HO-1) degrades heme to bilirubin. In addition, it is upregulated in malignant disease and has been described as an important factor for cancer prognosis and therapy. Under physiological conditions HO-1 is anchored to the endoplasmic reticulum (ER). Under stress conditions HO-1 can be cleaved and subsequently translocates to the cytosol and nucleus. In this study we systematically investigated the influence of HO-1's catabolic activity and subcellular localization on resistance against the tyrosine kinase inhibitor imatinib in leukemia cells by confocal laser scanning microscopy, hemoglobin synthesis experiments and cell viability assays. We created two types of monoclonal K562 cell lines stably transfected with GFP-tagged HO-1: cell lines expressing ER anchored HO-1 or anchorless HO-1. Since translocation of HO-1 disrupts the association with cytochrome P450 reductase, heme degrading activity was higher for ER anchored versus anchorless HO-1. Cell viability tests with increasing concentrations of imatinib showed IC50-values for all six cell lines with ER localized HO-1 that were similar to control cells. However, out of the seven cell lines with anchorless HO-1, two showed a statistically significant increase in the imatinib IC50 (19.76 μM and 12.35 μM versus 2.35 – 7.57 μM of sensitive cell lines) corresponding to plasma concentrations outside the therapeutic range. We conclude that the presence of translocated HO-1 in the cytosol and nucleus supports imatinib resistance while it is not sufficient to cause imatinib resistance in every cell line. In contrast, an increase in ER anchored HO-1 with high heme degrading activity does not contribute to imatinib resistance.
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48
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Li Volti G, Avola R, Vinciguerra M. Commentary: Fasting-Mimicking Diet Reduces HO-1 to Promote T Cell-Mediated Tumor Cytotoxicity. Front Oncol 2017. [PMID: 28626728 PMCID: PMC5455696 DOI: 10.3389/fonc.2017.00116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Giovanni Li Volti
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Roberto Avola
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Manlio Vinciguerra
- Center for Translational Medicine (CTM), International Clinical Research Center (ICRC), St. Anne's University Hospital, Brno, Czechia
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Tibullo D, Giallongo C, Puglisi F, Tomassoni D, Camiolo G, Cristaldi M, Brundo MV, Anfuso CD, Lupo G, Stampone T, Li Volti G, Amenta F, Avola R, Bramanti V. Effect of Lipoic Acid on the Biochemical Mechanisms of Resistance to Bortezomib in SH-SY5Y Neuroblastoma Cells. Mol Neurobiol 2017; 55:3344-3350. [PMID: 28497200 DOI: 10.1007/s12035-017-0575-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 04/25/2017] [Indexed: 01/06/2023]
Abstract
Neuroblastoma (NB) is an extracranial solid cancer and the most common cancer in infancy. Despite the standard treatment for NB is based on the combination of chemotherapeutic drugs such as doxorubicin, vincristine, cyclophosphamide, and cisplatin, chemoresistance occurs over the time. The aim of the present research was to evaluate the effect of bortezomib (BTZ) (50 nM) on NB cell viability and how lipoic acid (ALA) (100 μM) modifies pharmacological response to this chemotherapeutic agent. Cell viability was assessed by ATP luminescence assay whereas expression of oxidative stress marker (i.e., heme oxygenase-1) and endoplasmic reticulum stress proteins was performed by real-time PCR, western blot, and immunofluorescence. Our data showed that BTZ treatment significantly reduced cell viability when compared to untreated cultures (about 40%). Interestingly, ALA significantly reduced the efficacy of BTZ (about 30%). Furthermore, BTZ significantly induced heme oxygenase-1 as a result of increased oxidative stress and such overexpression was prevented by concomitant treatment with ALA. Similarly, ALA significantly reduced BTZ-mediated endoplasmic reticulum stress as measured by reduction in BiP1 and IRE1α, ERO1α, and PDI expression. In conclusion, our data suggest that BTZ efficacy is dependent on cellular redox status and such mechanisms may be responsible of chemoresistance to this chemotherapeutic agent.
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Affiliation(s)
- Daniele Tibullo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 87, 95100, Catania, Italy.,Division of Haematology, A.O.U. "Policlinico-Vittorio Emanuele", University of Catania, Via Citelli 6, 95100, Catania, Italy
| | - Cesarina Giallongo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 87, 95100, Catania, Italy.,Division of Haematology, A.O.U. "Policlinico-Vittorio Emanuele", University of Catania, Via Citelli 6, 95100, Catania, Italy
| | - Fabrizio Puglisi
- Division of Haematology, A.O.U. "Policlinico-Vittorio Emanuele", University of Catania, Via Citelli 6, 95100, Catania, Italy
| | - Daniele Tomassoni
- School of Bioscience and Veterinary Medicine, University of Camerino, via Gentile III da Varano, Camerino, 62032, Italy
| | - Giuseppina Camiolo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 87, 95100, Catania, Italy
| | - Martina Cristaldi
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 87, 95100, Catania, Italy
| | - Maria Violetta Brundo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 87, 95100, Catania, Italy
| | - Carmelina Daniela Anfuso
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 87, 95100, Catania, Italy
| | - Gabriella Lupo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 87, 95100, Catania, Italy
| | - Tomaso Stampone
- Division of Microbiology and Virology, Villa Sofia Hospital, A.O.O.R. "Villa Sofia-Cervello", Piazza Salerno 1, 90146, Palermo, Italy
| | - Giovanni Li Volti
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 87, 95100, Catania, Italy
| | - Francesco Amenta
- School of Medicinal Sciences and Health Products, University of Camerino, via Madonna delle Carceri 9, Camerino, 62032, Italy
| | - Roberto Avola
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 87, 95100, Catania, Italy.
| | - Vincenzo Bramanti
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 87, 95100, Catania, Italy.,Division of Microbiology and Virology, Villa Sofia Hospital, A.O.O.R. "Villa Sofia-Cervello", Piazza Salerno 1, 90146, Palermo, Italy
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50
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Antiproliferative and Antiangiogenic Effects of Punica granatum Juice (PGJ) in Multiple Myeloma (MM). Nutrients 2016; 8:nu8100611. [PMID: 27706074 PMCID: PMC5083999 DOI: 10.3390/nu8100611] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 09/11/2016] [Accepted: 09/13/2016] [Indexed: 12/22/2022] Open
Abstract
Multiple myeloma (MM) is a clonal B-cell malignancy characterized by an accumulation of clonal plasma cells (PC) in the bone marrow (BM) leading to bone destruction and BM failure. Despite recent advances in pharmacological therapy, MM remains a largely incurable pathology. Therefore, novel effective and less toxic agents are urgently necessary. In the last few years, pomegranate has been studied for its potential therapeutic properties including treatment and prevention of cancer. Pomegranate juice (PGJ) contains a number of potential active compounds including organic acids, vitamins, sugars, and phenolic components that are all responsible of the pro-apoptotic effects observed in tumor cell line. The aim of present investigation is to assess the antiproliferative and antiangiogenic potential of the PGJ in human multiple myeloma cell lines. Our data demonstrate the anti-proliferative potential of PGJ in MM cells; its ability to induce G0/G1 cell cycle block and its anti-angiogenic effects. Interestingly, sequential combination of bortezomib/PGJ improved the cytotoxic effect of the proteosome inhibitor. We investigated the effect of PGJ on angiogenesis and cell migration/invasion. Interestingly, we observed an inhibitory effect on the tube formation, microvessel outgrowth aorting ring and decreased cell migration and invasion as showed by wound-healing and transwell assays, respectively. Analysis of angiogenic genes expression in endothelial cells confirmed the anti-angiogenic properties of pomegranate. Therefore, PGJ administration could represent a good tool in order to identify novel therapeutic strategies for MM treatment, exploiting its anti-proliferative and anti-angiogenic effects. Finally, the present research supports the evidence that PGJ could play a key role of a future therapeutic approach for treatment of MM in order to optimize the pharmacological effect of bortezomib, especially as adjuvant after treatment.
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