201
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Jose D, Allen AL, Blakley B, Al-Dissi A. Evaluation of metallothionein and Ki-67 expression in chronic cholangiohepatitis in cats. CANADIAN JOURNAL OF VETERINARY RESEARCH = REVUE CANADIENNE DE RECHERCHE VETERINAIRE 2021; 85:36-44. [PMID: 33390651 PMCID: PMC7747655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 04/09/2020] [Indexed: 06/12/2023]
Abstract
Chronic cholangiohepatitis (CCH) is a common pathological condition in cats with a guarded prognosis and unknown etiology. Recently, in human medicine, there has been increased interest in enhancing liver defense mechanisms as an effective treatment strategy to control liver diseases that have a poor prognosis. Metallothionein (MT) is a ubiquitous protein, which has been widely researched for its role in liver defense through heavy metal detoxification, neutralization of reactive oxygen species, and liver regeneration. In this study, immunohistochemistry was used to evaluate the role of MT in CCH and hepatocellular regeneration in 34 cats histologically diagnosed with this condition by assessing the correlation between hepatocellular MT and Ki-67 (marker for cellular proliferation) expression with histological parameters of CCH, such as inflammation, fibrosis, and bile duct proliferation. Statistical analysis was performed using the Spearman-rank correlation test. A significant positive correlation was observed between inflammation and the number of MT-positive hepatocytes (r = 0.36, P = 0.03) and MT labelling intensity (r = 0.37, P = 0.03). In 16 of 34 cases (47%) MT labelling intensity was noted to be pronounced towards the centrilobular zone and very weak or absent towards the portal zone. The results suggest that MT is induced in the liver during chronic inflammatory conditions, which could be speculated as a host defensive mechanism to protect the liver from inflammation-mediated liver injury. Therapeutic interventions utilizing MT, therefore, may have a positive effect on cats with chronic cholangiohepatitis.
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Affiliation(s)
- Divya Jose
- Department of Veterinary Pathology (Jose, Allen, Al-Dissi) and Department of Veterinary Biomedical Sciences (Blakley), Western College of Veterinary Medicine, 52 Campus Drive, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Andrew L Allen
- Department of Veterinary Pathology (Jose, Allen, Al-Dissi) and Department of Veterinary Biomedical Sciences (Blakley), Western College of Veterinary Medicine, 52 Campus Drive, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Barry Blakley
- Department of Veterinary Pathology (Jose, Allen, Al-Dissi) and Department of Veterinary Biomedical Sciences (Blakley), Western College of Veterinary Medicine, 52 Campus Drive, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Ahmad Al-Dissi
- Department of Veterinary Pathology (Jose, Allen, Al-Dissi) and Department of Veterinary Biomedical Sciences (Blakley), Western College of Veterinary Medicine, 52 Campus Drive, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
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202
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Miller HC, Louw R, Mereis M, Venter G, Boshoff JD, Mienie L, van Reenen M, Venter M, Lindeque JZ, Domínguez-Martínez A, Quintana A, van der Westhuizen FH. Metallothionein 1 Overexpression Does Not Protect Against Mitochondrial Disease Pathology in Ndufs4 Knockout Mice. Mol Neurobiol 2021; 58:243-262. [PMID: 32918239 DOI: 10.1007/s12035-020-02121-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 09/05/2020] [Indexed: 01/24/2023]
Abstract
Mitochondrial diseases (MD), such as Leigh syndrome (LS), present with severe neurological and muscular phenotypes in patients, but have no known cure and limited treatment options. Based on their neuroprotective effects against other neurodegenerative diseases in vivo and their positive impact as an antioxidant against complex I deficiency in vitro, we investigated the potential protective effect of metallothioneins (MTs) in an Ndufs4 knockout mouse model (with a very similar phenotype to LS) crossed with an Mt1 overexpressing mouse model (TgMt1). Despite subtle reductions in the expression of neuroinflammatory markers GFAP and IBA1 in the vestibular nucleus and hippocampus, we found no improvement in survival, growth, locomotor activity, balance, or motor coordination in the Mt1 overexpressing Ndufs4-/- mice. Furthermore, at a cellular level, no differences were detected in the metabolomics profile or gene expression of selected one-carbon metabolism and oxidative stress genes, performed in the brain and quadriceps, nor in the ROS levels of macrophages derived from these mice. Considering these outcomes, we conclude that MT1, in general, does not protect against the impaired motor activity or improve survival in these complex I-deficient mice. The unexpected absence of increased oxidative stress and metabolic redox imbalance in this MD model may explain these observations. However, tissue-specific observations such as the mildly reduced inflammation in the hippocampus and vestibular nucleus, as well as differential MT1 expression in these tissues, may yet reveal a tissue- or cell-specific role for MTs in these mice.
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Affiliation(s)
- Hayley Christy Miller
- Human Metabolomics, Faculty of Natural and Agricultural Sciences, North-West University (Potchefstroom Campus), Private Bag X6001, Potchefstroom, South Africa
| | - Roan Louw
- Human Metabolomics, Faculty of Natural and Agricultural Sciences, North-West University (Potchefstroom Campus), Private Bag X6001, Potchefstroom, South Africa
| | - Michelle Mereis
- Human Metabolomics, Faculty of Natural and Agricultural Sciences, North-West University (Potchefstroom Campus), Private Bag X6001, Potchefstroom, South Africa
| | - Gerda Venter
- Human Metabolomics, Faculty of Natural and Agricultural Sciences, North-West University (Potchefstroom Campus), Private Bag X6001, Potchefstroom, South Africa
| | - John-Drew Boshoff
- Human Metabolomics, Faculty of Natural and Agricultural Sciences, North-West University (Potchefstroom Campus), Private Bag X6001, Potchefstroom, South Africa
| | - Liesel Mienie
- Human Metabolomics, Faculty of Natural and Agricultural Sciences, North-West University (Potchefstroom Campus), Private Bag X6001, Potchefstroom, South Africa
| | - Mari van Reenen
- Human Metabolomics, Faculty of Natural and Agricultural Sciences, North-West University (Potchefstroom Campus), Private Bag X6001, Potchefstroom, South Africa
| | - Marianne Venter
- Human Metabolomics, Faculty of Natural and Agricultural Sciences, North-West University (Potchefstroom Campus), Private Bag X6001, Potchefstroom, South Africa
| | - Jeremie Zander Lindeque
- Human Metabolomics, Faculty of Natural and Agricultural Sciences, North-West University (Potchefstroom Campus), Private Bag X6001, Potchefstroom, South Africa
| | - Adán Domínguez-Martínez
- Institut de Neurociències i Departament de Biologia Cel·lular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Albert Quintana
- Institut de Neurociències i Departament de Biologia Cel·lular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Francois Hendrikus van der Westhuizen
- Human Metabolomics, Faculty of Natural and Agricultural Sciences, North-West University (Potchefstroom Campus), Private Bag X6001, Potchefstroom, South Africa.
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203
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Wu F, Sokolov EP, Dellwig O, Sokolova IM. Season-dependent effects of ZnO nanoparticles and elevated temperature on bioenergetics of the blue mussel Mytilus edulis. CHEMOSPHERE 2021; 263:127780. [PMID: 32814131 DOI: 10.1016/j.chemosphere.2020.127780] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 07/17/2020] [Accepted: 07/18/2020] [Indexed: 06/11/2023]
Abstract
Input of ZnO nanoparticles (nZnO) from multiple sources have raised concerns about the potential toxic effects on estuarine and coastal organisms. The toxicity of nZnO and its interaction with common abiotic stressors (such as elevated temperature) are not well understood in these organisms. Here, we examined the bioenergetics responses of the blue mussel Mytilus edulis exposed for 21 days to different concentrations of nZnO or dissolved zinc (Zn2+) (0, 10, 100 μg l-1) and two temperatures (ambient and 5 °C warmer) in winter and summer. Exposure to nZnO had little effect on the protein and lipid levels, but led to a significant depletion of carbohydrates and a decrease in the electron transport system (ETS) activity. Qualitatively similar but weaker effects were found for dissolved Zn. In winter mussels, elevated temperature (15 °C) led to elevated protein and lipid levels increasing the total energy content of the tissues. In contrast, elevated temperature (20 °C) resulted in a decrease in the lipid and carbohydrate levels and suppressed ETS in summer mussels. These data indicate that moderate warming in winter (but not in summer) might partially compensate for the bioenergetics stress caused by nZnO toxicity in M. edulis from temperate areas such as the Baltic Sea.
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Affiliation(s)
- Fangli Wu
- Department of Marine Biology, Institute for Biological Sciences, University of Rostock, Rostock, Germany
| | - Eugene P Sokolov
- Leibniz Institute for Baltic Sea Research, Leibniz ScienceCampus Phosphorus Research, Rostock, Warnemünde, Germany
| | - Olaf Dellwig
- Department of Marine Geology, Leibniz Institute for Baltic Sea Research Warnemünde, Rostock, Germany
| | - Inna M Sokolova
- Department of Marine Biology, Institute for Biological Sciences, University of Rostock, Rostock, Germany; Department of Maritime Systems, Interdisciplinary Faculty, University of Rostock, Rostock, Germany.
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204
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Scharf P, da Rocha GHO, Sandri S, Heluany CS, Pedreira Filho WR, Farsky SHP. Immunotoxic mechanisms of cigarette smoke and heat-not-burn tobacco vapor on Jurkat T cell functions. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 268:115863. [PMID: 33126161 DOI: 10.1016/j.envpol.2020.115863] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/29/2020] [Accepted: 10/14/2020] [Indexed: 06/11/2023]
Abstract
Cigarette smoke (CS) affects immune functions, leading to severe outcomes in smokers. Robust evidence addresses the immunotoxic effects of combustible tobacco products. As heat-not-burn tobacco products (HNBT) vaporize lower levels of combustible products, we here compared the effects of cigarette smoke (CS) and HNBT vapor on Jurkat T cells. Cells were exposed to air, conventional cigarettes or heatsticks of HNBT for 30 min and were stimulated or not with phorbol myristate acetate (PMA). Cell viability, proliferation, reactive oxygen species (ROS) production, 8-OHdG, MAP-kinases and nuclear factor κB (NFκB) activation and metallothionein expression (MTs) were assessed by flow cytometry; nitric oxide (NO) and cytokine levels were measured by Griess reaction and ELISA, respectively. Levels of metals in the exposure chambers were quantified by inductively coupled plasma mass spectrometry. MT expressions were quantified by immunohistochemistry in the lungs and liver of C57Bl/6 mice exposed to CS, HNBT or air (1 h, twice a day for five days: via inhalation). While both CS and HBNT exposures increased cell death, CS led to a higher number of necrotic cells, increased the production of ROS, NO, inflammatory cytokines and MTs when compared to HNBT-exposed cells, and led to a higher expression of MTs in mice. CS released higher amounts of metals. CS and HNBT exposures decreased PMA-induced interleukin-2 (IL-2) secretion and impaired Jurkat proliferation, effects also seen in cells exposed to nicotine. Although HNBT vapor does not activate T cells as CS does, exposure to both HNBT and CS suppressed proliferation and IL-2 release, a pivotal cytokine involved with T cell proliferation and tolerance, and this effect may be related to nicotine content in both products.
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Affiliation(s)
- Pablo Scharf
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, SP, Brazil
| | - Gustavo H O da Rocha
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, SP, Brazil
| | - Silvana Sandri
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, SP, Brazil
| | - Cintia S Heluany
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, SP, Brazil
| | - Walter R Pedreira Filho
- Fundação Jorge Duprat Figueiredo de Segurança e Medicina do Trabalho, Ministério do Trabalho e Previdência Social, Sao Paulo, SP, Brazil
| | - Sandra H P Farsky
- Department of Clinical & Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, SP, Brazil.
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205
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Vilas-Boas EA, Nalbach L, Ampofo E, Lucena CF, Naudet L, Ortis F, Carpinelli AR, Morgan B, Roma LP. Transient NADPH oxidase 2-dependent H 2O 2 production drives early palmitate-induced lipotoxicity in pancreatic islets. Free Radic Biol Med 2021; 162:1-13. [PMID: 33249137 DOI: 10.1016/j.freeradbiomed.2020.11.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 11/18/2020] [Accepted: 11/20/2020] [Indexed: 01/12/2023]
Abstract
Modern lifestyles, including lack of physical activity and poor nutritional habits, are driving the rapidly increasing prevalence of obesity and type 2 diabetes. Increased levels of free fatty acids (FFAs), particularly saturated FFAs, in obese individuals have been linked to pancreatic β-cell failure. This process, termed lipotoxicity, involves activation of several stress responses, including ER stress and oxidative stress. However, the molecular underpinnings and causal relationships between the disparate stress responses remain unclear. Here we employed transgenic mice, expressing a genetically-encoded cytosolic H2O2 sensor, roGFP2-Orp1, to monitor dynamic changes in H2O2 levels in pancreatic islets in response to chronic palmitate exposure. We identified a transient increase in H2O2 levels from 4 to 8 h after palmitate addition, which was mirrored by a concomitant decrease in cellular NAD(P)H levels. Intriguingly, islets isolated from NOX2 knock-out mice displayed no H2O2 transient upon chronic palmitate treatment. Furthermore, NOX2 knockout rescued palmitate-dependent impairment of insulin secretion, calcium homeostasis and viability. Chemical inhibition of NOX activity protected islets from palmitate-induced impairment in insulin secretion, however had no detectable impact upon the induction of ER stress. In summary, our results reveal that transient NOX2-dependent H2O2 production is a likely cause of early palmitate-dependent lipotoxic effects.
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Affiliation(s)
- Eloisa Aparecida Vilas-Boas
- Department of Biophysics, Center for Human and Molecular Biology (ZHMB), Saarland University, Homburg, Germany; Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo (USP), São Paulo, SP, Brazil
| | - Lisa Nalbach
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Emmanuel Ampofo
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Camila Ferraz Lucena
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo (USP), São Paulo, SP, Brazil
| | - Léa Naudet
- Department of Biophysics, Center for Human and Molecular Biology (ZHMB), Saarland University, Homburg, Germany
| | - Fernanda Ortis
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo (USP), São Paulo, SP, Brazil
| | - Angelo Rafael Carpinelli
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo (USP), São Paulo, SP, Brazil
| | - Bruce Morgan
- Institute for Biochemistry, Center for Human and Molecular Biology (ZHMB), Saarland University, Saarbrücken, Germany
| | - Leticia Prates Roma
- Department of Biophysics, Center for Human and Molecular Biology (ZHMB), Saarland University, Homburg, Germany.
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206
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Pavelicova K, Vanickova L, Haddad Y, Nejdl L, Zitka J, Kociova S, Mravec F, Vaculovic T, Macka M, Vaculovicova M, Adam V. Metallothionein dimerization evidenced by QD-based Förster resonance energy transfer and capillary electrophoresis. Int J Biol Macromol 2020; 170:53-60. [PMID: 33340626 DOI: 10.1016/j.ijbiomac.2020.12.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 12/09/2020] [Accepted: 12/10/2020] [Indexed: 11/30/2022]
Abstract
Herein, we report a new simple and easy-to-use approach for the characterization of protein oligomerization based on fluorescence resonance energy transfer (FRET) and capillary electrophoresis with LED-induced detection. The FRET pair consisted of quantum dots (QDs) used as an emission tunable donor (emission wavelength of 450 nm) and a cyanine dye (Cy3), providing optimal optical properties as an acceptor. Nonoxidative dimerization of mammalian metallothionein (MT) was investigated using the donor and acceptor covalently conjugated to MT. The main functions of MTs within an organism include the transport and storage of essential metal ions and detoxification of toxic ions. Upon storage under aerobic conditions, MTs form dimers (as well as higher oligomers), which may play an essential role as mediators in oxidoreduction signaling pathways. Due to metal bridging by Cd2+ ions between molecules of metallothionein, the QDs and Cy3 were close enough, enabling a FRET signal. The FRET efficiency was calculated to be in the range of 11-77%. The formation of MT dimers in the presence of Cd2+ ions was confirmed by MALDI-MS analyses. Finally, the process of oligomerization resulting in FRET was monitored by CE, and oligomerization of MT was confirmed.
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Affiliation(s)
- Kristyna Pavelicova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Lucie Vanickova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Yazan Haddad
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Lukas Nejdl
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Jan Zitka
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Silvia Kociova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic
| | - Filip Mravec
- Materials Research Centre, Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00, Brno, Czech Republic
| | - Tomas Vaculovic
- Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 753/5, CZ-625 00 Brno, Czech Republic
| | - Mirek Macka
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic; School of Natural Sciences, Australian Centre for Research on Separation Science (ACROSS), University of Tasmania, Private Bag 75, Hobart 7001, Australia
| | - Marketa Vaculovicova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic.
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Purkynova 123, CZ-612 00 Brno, Czech Republic.
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207
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Gromadzka G, Tarnacka B, Flaga A, Adamczyk A. Copper Dyshomeostasis in Neurodegenerative Diseases-Therapeutic Implications. Int J Mol Sci 2020; 21:E9259. [PMID: 33291628 PMCID: PMC7730516 DOI: 10.3390/ijms21239259] [Citation(s) in RCA: 128] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 11/27/2020] [Accepted: 11/28/2020] [Indexed: 12/12/2022] Open
Abstract
Copper is one of the most abundant basic transition metals in the human body. It takes part in oxygen metabolism, collagen synthesis, and skin pigmentation, maintaining the integrity of blood vessels, as well as in iron homeostasis, antioxidant defense, and neurotransmitter synthesis. It may also be involved in cell signaling and may participate in modulation of membrane receptor-ligand interactions, control of kinase and related phosphatase functions, as well as many cellular pathways. Its role is also important in controlling gene expression in the nucleus. In the nervous system in particular, copper is involved in myelination, and by modulating synaptic activity as well as excitotoxic cell death and signaling cascades induced by neurotrophic factors, copper is important for various neuronal functions. Current data suggest that both excess copper levels and copper deficiency can be harmful, and careful homeostatic control is important. This knowledge opens up an important new area for potential therapeutic interventions based on copper supplementation or removal in neurodegenerative diseases including Wilson's disease (WD), Menkes disease (MD), Alzheimer's disease (AD), Parkinson's disease (PD), and others. However, much remains to be discovered, in particular, how to regulate copper homeostasis to prevent neurodegeneration, when to chelate copper, and when to supplement it.
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Affiliation(s)
- Grażyna Gromadzka
- Collegium Medicum, Faculty of Medicine, Cardinal Stefan Wyszynski University, Wóycickiego 1/3 Street, 01-938 Warsaw, Poland;
| | - Beata Tarnacka
- Department of Rehabilitation, Eleonora Reicher National Institute of Geriatrics, Rheumatology and Rehabilitation, Rehabilitation Clinic, Medical University of Warsaw, Spartańska 1 Street, 02-637 Warsaw, Poland;
| | - Anna Flaga
- Collegium Medicum, Faculty of Medicine, Cardinal Stefan Wyszynski University, Wóycickiego 1/3 Street, 01-938 Warsaw, Poland;
| | - Agata Adamczyk
- Department of Cellular Signalling, Mossakowski Medical Research Centre, Polish Academy of Sciences, 5 Pawińskiego Street, 02-106 Warsaw, Poland;
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208
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Michalczyk K, Cymbaluk-Płoska A. The Role of Zinc and Copper in Gynecological Malignancies. Nutrients 2020; 12:E3732. [PMID: 33287452 PMCID: PMC7761859 DOI: 10.3390/nu12123732] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 11/29/2020] [Accepted: 12/02/2020] [Indexed: 12/14/2022] Open
Abstract
Zinc (Zn) and copper (Cu) are essential microelements, which take part in cellular metabolism, feature in enzymatic systems, and regulate enzyme activity. Homeostasis of these micronutrients is tightly regulated by multiple compensatory mechanisms that balance their concentrations including transporters, importers, and metallothioneins. An altered intake of only one of these trace elements may cause an imbalance in their levels and result in their competition for absorption. Relatively low levels of zinc and increased levels of copper may result in an increased level of oxidative stress and impair the antioxidant properties of multiple enzymes. Altered levels of trace elements were discovered in various pathologies including immunological, degenerative, and inflammatory diseases. Moreover, due to the role of Zn and Cu in oxidative stress and chronic inflammation, they were found to influence cancerogenesis. We review the roles of zinc and copper and their mechanisms in tumor growth, metastasis potential, microenvironment remodeling, and drug resistance. We highlight their role as potential biomarkers for cancer diagnosis, treatment, and prognosis, concentrating on their impact on gynecological malignancies.
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Affiliation(s)
- Kaja Michalczyk
- Department of Gynecological Surgery and Oncology of Adults and Adolescents, Pomeranian Medical University, al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland;
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209
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Perera M, El Khoury J, Chinni V, Bolton D, Qu L, Johnson P, Trubiano J, McDonald CF, Jones D, Bellomo R, Patel O, Ischia J. Randomised controlled trial for high-dose intravenous zinc as adjunctive therapy in SARS-CoV-2 (COVID-19) positive critically ill patients: trial protocol. BMJ Open 2020; 10:e040580. [PMID: 33268419 PMCID: PMC7712927 DOI: 10.1136/bmjopen-2020-040580] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 10/27/2020] [Accepted: 11/05/2020] [Indexed: 12/28/2022] Open
Abstract
INTRODUCTION SARS-CoV-2 (COVID-19) has caused an international pandemic of respiratory illness, resulting in significant healthcare and economic turmoil. To date, no robust vaccine or treatment has been identified. Elemental zinc has previously been demonstrated to have beneficial effects on coronaviruses and other viral respiratory infections due to its effect on RNA polymerase. Additionally, zinc has well-demonstrated protective effects against hypoxic injury-a clear mechanism of end-organ injury in respiratory distress syndrome. We aimed to assess the effect of high-dose intravenous zinc (HDIVZn) on SARS-CoV-2 infection. The end of study analyses will evaluate the reduction of impact of oxygen saturations or requirement of oxygen supplementation. METHODS AND ANALYSIS We designed a double-blind randomised controlled trial of daily HDIVZn (0.5 mg/kg) versus placebo. Primary outcome measures are lowest oxygen saturation (or greatest level of supplemental oxygenation) for non-ventilated patients and worst PaO2/FiO2 for ventilated patients. Following power calculations, 60 hospitalised patients and 100 ventilated patients will be recruited to demonstrate a 20% difference. The duration of follow-up is up to the point of discharge. ETHICS AND DISSEMINATION Ethical approval was obtained through the independent Human Research Ethics Committee. Participant recruitment will commence in May 2020. Results will be published in peer-reviewed medical journals. TRIAL REGISTRATION NUMBER ACTRN126200000454976.
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Affiliation(s)
- Marlon Perera
- Department of Surgery, Austin Health, Heidelberg, Victoria, Australia
| | - John El Khoury
- Department of Surgery, Austin Health, Heidelberg, Victoria, Australia
| | - Vidyasagar Chinni
- Department of Surgery, Austin Health, Heidelberg, Victoria, Australia
| | - Damien Bolton
- Department of Surgery, Austin Health, Heidelberg, Victoria, Australia
| | - Liang Qu
- Department of Surgery, Austin Health, Heidelberg, Victoria, Australia
| | - Paul Johnson
- Infectious Diseases, Austin Health, Heidelberg, Victoria, Australia
| | - Jason Trubiano
- Infectious Diseases, Austin Health, Heidelberg, Victoria, Australia
| | | | - Daryl Jones
- Intensive Care Unit Austin Hospital, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, Austin Health, Heidelberg, Victoria, Australia
| | - Rinaldo Bellomo
- Intensive Care Unit Austin Hospital, Austin Health, Heidelberg, Victoria, Australia
- Department of Medicine, Austin Health, Heidelberg, Victoria, Australia
| | - Oneel Patel
- Department of Surgery, Austin Health, Heidelberg, Victoria, Australia
| | - Joseph Ischia
- Department of Surgery, Austin Health, Heidelberg, Victoria, Australia
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210
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Ooi TC, Chan KM, Sharif R. Zinc L-Carnosine Protects CCD-18co Cells from L-Buthionine Sulfoximine-Induced Oxidative Stress via the Induction of Metallothionein and Superoxide Dismutase 1 Expression. Biol Trace Elem Res 2020; 198:464-471. [PMID: 32146577 DOI: 10.1007/s12011-020-02108-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 03/03/2020] [Indexed: 12/15/2022]
Abstract
Zinc L-carnosine (ZnC) is the chelate form of zinc and L-carnosine and is one of the zinc supplements available in the market. This study aims to determine the protective effects of ZnC against L-buthionine sulfoximine (BSO)-induced oxidative stress in CCD-18co human normal colon fibroblast cell line. CCD-18co cells were pretreated with ZnC (0-100 μM) for 24 h before the induction of oxidative stress by BSO (1 mM) for another 24 h. Results from this present study demonstrated that ZnC up to the concentration of 100 μM was not cytotoxic to CCD-18co cells. Induction with BSO significantly increased the intracellular reactive oxygen species (ROS) levels and reduced the intracellular glutathione (GSH) levels in CCD-18co cells. Pretreatment with ZnC was able to attenuate the increment in intracellular ROS level in CCD-18co cells significantly in a concentration-dependent manner. However, ZnC did not have any effects on intracellular GSH levels and Nrf2 activation. Mechanistically, pretreatment with ZnC was able to upregulate the expression of metallothionein (MT) and superoxide dismutase 1 (SOD1) in CCD-18co cells. Results from dual-luciferase reporter gene assay reported that ZnC was able to increase the MRE-mediated relative luciferase activities in a concentration-dependent manner, suggesting that the induction of MT expression by ZnC was due to the activation of MTF-1 signaling pathway. Taken together, our current findings suggest that ZnC can protect CCD-18co cells from BSO-induced oxidative stress via the induction of MT and SOD1 expression.
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Affiliation(s)
- Theng Choon Ooi
- Center for Healthy Ageing & Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300, Kuala Lumpur, Malaysia
| | - Kok Meng Chan
- Environmental Health and Industrial Safety Programme, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300, Kuala Lumpur, Malaysia
| | - Razinah Sharif
- Center for Healthy Ageing & Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, 50300, Kuala Lumpur, Malaysia.
- Biocompatibility Laboratory, Centre for Research and Instrumentation, Universiti Kebangsaan Malaysia, 43600, UKM Bangi, Selangor Darul Ehsan, Malaysia.
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211
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Gupta AD, Kavitha E, Singh S, Karthikeyan S. Toxicity mechanism of Cu 2+ ion individually and in combination with Zn 2+ ion in characterizing the molecular changes of Staphylococcus aureus studied using FTIR coupled with chemometric analysis. J Biol Phys 2020; 46:395-414. [PMID: 33237339 PMCID: PMC7719146 DOI: 10.1007/s10867-020-09560-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 11/08/2020] [Indexed: 10/22/2022] Open
Abstract
Copper and zinc have a high binding affinity with a Staphylococcus aureus bacterial community. This causes a change in the biomolecular composition of S. aureus. Our study aims at understanding the resistance mechanism of Cu and Zn either or in various combinations using FTIR and chemometric techniques. Zn toxicity resulted in a significant change in lipid content (3100-2800 cm-1) compared to Cu. A significant decrease in protein content is observed for Cu treatment in the amide region. The bio-concentration factor shows a higher value for Cu compared to Zn. The increase in band area of carbohydrates moieties 1059 cm-1 shows the secretion of EPS due to Cu toxicity. A significant change in nucleic acid compositions was noted in the region1200-900 cm-1 due to Zn treatment. Secondary structural change in protein shows β sheet formation. The result of the finding shows Cu has greater toxicity than Zn. Further toxicity effects were greatly enhanced for metal mixtures ratio (Cu:2Zn). This shows Zn exhibits synergism effect with Cu. The obtained ROC (receiver operating characteristic) curve area gives good reliability of the experiments. The study attempts to understand the mechanism of toxicity removal of Cu and Zn metal mixtures by bacterial population using FTIR coupled with chemometric techniques. Graphical abstract.
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Affiliation(s)
- Annika Durve Gupta
- Department of Biotechnology, B. K. Birla College, Kalyan, Maharashtra, 421304, India
| | - Esakimuthu Kavitha
- Department of Physics, Dr. MGR Educational and Research Institute, Chennai, Tamil Nadu, 600095, India
| | - Shikha Singh
- Department of Biotechnology, B. K. Birla College, Kalyan, Maharashtra, 421304, India
| | - Sivakumaran Karthikeyan
- Department of Physics, Dr. Ambedkar Government Arts College, Chennai, Tamil Nadu, 600039, India.
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212
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The Function of Transthyretin Complexes with Metallothionein in Alzheimer's Disease. Int J Mol Sci 2020; 21:ijms21239003. [PMID: 33256250 PMCID: PMC7730073 DOI: 10.3390/ijms21239003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/23/2020] [Accepted: 11/24/2020] [Indexed: 12/12/2022] Open
Abstract
Alzheimer’s disease (AD) is one of the most frequently diagnosed types of dementia in the elderly. An important pathological feature in AD is the aggregation and deposition of the β-amyloid (Aβ) in extracellular plaques. Transthyretin (TTR) can cleave Aβ, resulting in the formation of short peptides with less activity of amyloid plaques formation, as well as being able to degrade Aβ peptides that have already been aggregated. In the presence of TTR, Aβ aggregation decreases and toxicity of Aβ is abolished. This may prevent amyloidosis but the malfunction of this process leads to the development of AD. In the context of Aβplaque formation in AD, we discuss metallothionein (MT) interaction with TTR, the effects of which depend on the type of MT isoform. In the brains of patients with AD, the loss of MT-3 occurs. On the contrary, MT-1/2 level has been consistently reported to be increased. Through interaction with TTR, MT-2 reduces the ability of TTR to bind to Aβ, while MT-3 causes the opposite effect. It increases TTR-Aβ binding, providing inhibition of Aβ aggregation. The protective effect, assigned to MT-3 against the deposition of Aβ, relies also on this mechanism. Additionally, both Zn7MT-2 and Zn7MT-3, decrease Aβ neurotoxicity in cultured cortical neurons probably because of a metal swap between Zn7MT and Cu(II)Aβ. Understanding the molecular mechanism of metals transfer between MT and other proteins as well as cognition of the significance of TTR interaction with different MT isoforms can help in AD treatment and prevention.
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213
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Zinc in the Brain: Friend or Foe? Int J Mol Sci 2020; 21:ijms21238941. [PMID: 33255662 PMCID: PMC7728061 DOI: 10.3390/ijms21238941] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/22/2020] [Accepted: 11/24/2020] [Indexed: 12/12/2022] Open
Abstract
Zinc is a trace metal ion in the central nervous system that plays important biological roles, such as in catalysis, structure, and regulation. It contributes to antioxidant function and the proper functioning of the immune system. In view of these characteristics of zinc, it plays an important role in neurophysiology, which leads to cell growth and cell proliferation. However, after brain disease, excessively released and accumulated zinc ions cause neurotoxic damage to postsynaptic neurons. On the other hand, zinc deficiency induces degeneration and cognitive decline disorders, such as increased neuronal death and decreased learning and memory. Given the importance of balance in this context, zinc is a biological component that plays an important physiological role in the central nervous system, but a pathophysiological role in major neurological disorders. In this review, we focus on the multiple roles of zinc in the brain.
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214
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Aquila G, Re Cecconi AD, Brault JJ, Corli O, Piccirillo R. Nutraceuticals and Exercise against Muscle Wasting during Cancer Cachexia. Cells 2020; 9:E2536. [PMID: 33255345 PMCID: PMC7760926 DOI: 10.3390/cells9122536] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/17/2020] [Accepted: 11/18/2020] [Indexed: 12/12/2022] Open
Abstract
Cancer cachexia (CC) is a debilitating multifactorial syndrome, involving progressive deterioration and functional impairment of skeletal muscles. It affects about 80% of patients with advanced cancer and causes premature death. No causal therapy is available against CC. In the last few decades, our understanding of the mechanisms contributing to muscle wasting during cancer has markedly increased. Both inflammation and oxidative stress (OS) alter anabolic and catabolic signaling pathways mostly culminating with muscle depletion. Several preclinical studies have emphasized the beneficial roles of several classes of nutraceuticals and modes of physical exercise, but their efficacy in CC patients remains scant. The route of nutraceutical administration is critical to increase its bioavailability and achieve the desired anti-cachexia effects. Accumulating evidence suggests that a single therapy may not be enough, and a bimodal intervention (nutraceuticals plus exercise) may be a more effective treatment for CC. This review focuses on the current state of the field on the role of inflammation and OS in the pathogenesis of muscle atrophy during CC, and how nutraceuticals and physical activity may act synergistically to limit muscle wasting and dysfunction.
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Affiliation(s)
- Giorgio Aquila
- Neuroscience Department, Mario Negri Institute for Pharmacological Research IRCCS, 20156 Milan, Italy; (G.A.); (A.D.R.C.)
- Italian Institute for Planetary Health, IIPH, 20156 Milan, Italy;
| | - Andrea David Re Cecconi
- Neuroscience Department, Mario Negri Institute for Pharmacological Research IRCCS, 20156 Milan, Italy; (G.A.); (A.D.R.C.)
- Italian Institute for Planetary Health, IIPH, 20156 Milan, Italy;
| | - Jeffrey J. Brault
- Indiana Center for Musculoskeletal Health, Department of Anatomy, Cell Biology & Physiology, Indiana University School of Medicine, Indianapolis, IN 46202, USA;
| | - Oscar Corli
- Italian Institute for Planetary Health, IIPH, 20156 Milan, Italy;
- Oncology Department, Mario Negri Institute for Pharmacological Research IRCCS, 20156 Milan, Italy
| | - Rosanna Piccirillo
- Neuroscience Department, Mario Negri Institute for Pharmacological Research IRCCS, 20156 Milan, Italy; (G.A.); (A.D.R.C.)
- Italian Institute for Planetary Health, IIPH, 20156 Milan, Italy;
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215
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Galasso C, Piscitelli C, Brunet C, Sansone C. New In Vitro Model of Oxidative Stress: Human Prostate Cells Injured with 2,2-diphenyl-1-picrylhydrazyl (DPPH) for the Screening of Antioxidants. Int J Mol Sci 2020; 21:ijms21228707. [PMID: 33218067 PMCID: PMC7698958 DOI: 10.3390/ijms21228707] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/11/2020] [Accepted: 11/17/2020] [Indexed: 12/28/2022] Open
Abstract
The antioxidant activity of natural compounds consists in their ability to modulate gene and protein expression, thus inducing an integrated cell protective response and repair processes against oxidative stress. New screening tools and methodologies are crucial for the actual requirement of new products with antioxidant activity to boost endogenous oxidative stress responsive pathways, Reactive Oxygen Species (ROS) metabolism and immune system activity, preserving human health and wellness. In this study, we performed and tested an integrated oxidative stress analysis, using DPPH assay and PNT2 cells injured with DPPH. We firstly investigated the mechanism of action of the oxidising agent (DPPH) on PNT2 cells, studying the variation in cell viability, oxidative stress genes, inflammatory mediator and ROS levels. The results reveal that DPPH activated ROS production and release of Prostaglandin E2 in PNT2 at low and intermediate doses, while cells switched from survival to cell death signals at high doses of the oxidising agent. This new in vitro oxidative stress model was validated by using Trolox, β-carotene and total extract of the green microalga Testraselmis suecica. Only the T. suecica extract can completely counteract DPPH-induced injury, since its chemical complexity demonstrated a multilevel protecting and neutralising effect against oxidative stress in PNT2.
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216
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Poretti M, Praz CR, Meile L, Kälin C, Schaefer LK, Schläfli M, Widrig V, Sanchez-Vallet A, Wicker T, Bourras S. Domestication of High-Copy Transposons Underlays the Wheat Small RNA Response to an Obligate Pathogen. Mol Biol Evol 2020; 37:839-848. [PMID: 31730193 PMCID: PMC7038664 DOI: 10.1093/molbev/msz272] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Plant genomes have evolved several evolutionary mechanisms to tolerate and make use of transposable elements (TEs). Of these, transposon domestication into cis-regulatory and microRNA (miRNA) sequences is proposed to contribute to abiotic/biotic stress adaptation in plants. The wheat genome is derived at 85% from TEs, and contains thousands of miniature inverted-repeat transposable elements (MITEs), whose sequences are particularly prone for domestication into miRNA precursors. In this study, we investigate the contribution of TEs to the wheat small RNA immune response to the lineage-specific, obligate powdery mildew pathogen. We show that MITEs of the Mariner superfamily contribute the largest diversity of miRNAs to the wheat immune response. In particular, MITE precursors of miRNAs are wide-spread over the wheat genome, and highly conserved copies are found in the Lr34 and QPm.tut-4A mildew resistance loci. Our work suggests that transposon domestication is an important evolutionary force driving miRNA functional innovation in wheat immunity.
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Affiliation(s)
- Manuel Poretti
- Department of Plant and Microbial Biology, University of Zurich, Zurich, Switzerland
| | - Coraline Rosalie Praz
- Department of Plant and Microbial Biology, University of Zurich, Zurich, Switzerland
| | - Lukas Meile
- Plant Pathology, Institute of Integrative Biology, ETH Zurich, Zurich, Switzerland
| | - Carol Kälin
- Department of Plant and Microbial Biology, University of Zurich, Zurich, Switzerland
| | | | - Michael Schläfli
- Department of Plant and Microbial Biology, University of Zurich, Zurich, Switzerland
| | - Victoria Widrig
- Department of Plant and Microbial Biology, University of Zurich, Zurich, Switzerland
| | | | - Thomas Wicker
- Department of Plant and Microbial Biology, University of Zurich, Zurich, Switzerland
| | - Salim Bourras
- Department of Plant and Microbial Biology, University of Zurich, Zurich, Switzerland.,Department of Forest Mycology and Plant Pathology, Division of Plant Pathology, Swedish University of Agricultural Sciences, Uppsala, Sweden
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217
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Aendo P, Netvichian R, Khaodhiar S, Thongyuan S, Songserm T, Tulayakul P. Pb, Cd, and Cu Play a Major Role in Health Risk from Contamination in Duck Meat and Offal for Food Production in Thailand. Biol Trace Elem Res 2020; 198:243-252. [PMID: 31933282 DOI: 10.1007/s12011-020-02040-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 01/07/2020] [Indexed: 01/12/2023]
Abstract
Zinc, Pb, Cd, Mn, Fe, Cr, and Cu levels in duck meat from large-scale farms have been found to be significantly higher than those from free-grazing duck farms. Zinc, Co, Mn, Cr, and Cu contamination levels in duck liver from large-scale farms were significantly higher than those from free-grazing farms; only Cd in duck liver from free-grazing farms was higher than in liver samples from large-scale farms at P < 0.05. Lead, Cd, Fe, and Cr levels in duck intestine samples from free-grazing farms were higher than large-scale farms at P < 0.001. Moreover, the average concentrations of Pb in duck meat and liver samples from large-scale farms and Cd levels in duck liver samples from free-grazing farm also exceeded the FAO/WHO and Codex Alimentarius limits by 100% (55/55), 100% (54/54), and 67.6% (23/34), respectively. PCA analysis showed a strong positive relationship between the eight metals in meat, liver, and intestine was > 0.69, > 0.69, and > 0.72, in order. The relationship of the liver combined with the intestine was > 0.65. This study indicated that consumers may incur health risks from long-term consumption of duck due to high Pb and Cd concentrations from both types of farms, particularly from large-scale duck farms.
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Affiliation(s)
- Paweena Aendo
- Center for Duck Health Science, Faculty of Veterinary Medicine, Kasetsart University Kamphaeng Saen Campus, Nakhon Pathom, 73140, Thailand
| | - Ramnaree Netvichian
- Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10300, Thailand
| | - Sutha Khaodhiar
- Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10300, Thailand
| | - Suporn Thongyuan
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Kasetsart University Kamphaeng Saen Campus, Nakhon Pathom, 73140, Thailand
| | - Thaweesak Songserm
- Center for Duck Health Science, Faculty of Veterinary Medicine, Kasetsart University Kamphaeng Saen Campus, Nakhon Pathom, 73140, Thailand
- Department of Pathology, Faculty of Veterinary Medicine, Kasetsart University Kamphaeng Saen Campus, Nakhon Pathom, 73140, Thailand
| | - Phitsanu Tulayakul
- Center for Duck Health Science, Faculty of Veterinary Medicine, Kasetsart University Kamphaeng Saen Campus, Nakhon Pathom, 73140, Thailand.
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Kasetsart University Kamphaeng Saen Campus, Nakhon Pathom, 73140, Thailand.
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218
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Yu L, Chen X, Wei Y, Ding Y, Wang Q, Wang S, Tang B, Wang S. Effects of long-term cadmium exposure on trehalose metabolism, growth, and development of Aedes albopictus (Diptera: Culicidae). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 204:111034. [PMID: 32758695 DOI: 10.1016/j.ecoenv.2020.111034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 07/10/2020] [Accepted: 07/11/2020] [Indexed: 06/11/2023]
Abstract
Trehalose is the major blood sugar in insects; it not only serves as an energy source but also plays important roles in physiological responses to adverse conditions. However, only a few studies have explored the effects of heavy metal exposure stress on trehalose metabolism in insects. Therefore, in this study, we examined the effects of cadmium stress on changes in trehalose metabolism in Aedes albopictus. Three concentrations of cadmium (0.005, 0.01, and 0.1 mg/L) were selected for evaluation of long-term stress in Ae. albopictus (from eggs to adults); Ae. albopictus in double-distilled water was used as the control group. The trehalose and glucose contents, trehalase activity, and trehalose metabolism-related gene expression were determined. The effects of long-term cadmium exposure on growth, development, and reproduction were also assessed. Trehalose contents were increased, whereas glucose contents and trehalase activity were decreased in Ae. albopictus following long-term exposure to low concentrations of cadmium compared with those in untreated individuals. Moreover, the expression of trehalose-6-phosphate synthase was upregulated, and that of trehalase was downregulated, indicating that Ae. albopictus may enhance trehalose synthesis to resist cadmium stress. Cadmium exposure also caused Ae. albopictus individuals to become smaller with a longer developmental duration, whereas both reproduction and hatching rates of the offspring were decreased compared with those in the control group. Our findings demonstrated that cadmium exposure affected the morphology, physiology, and biochemistry of Ae. albopictus. These findings also confirmed the role of trehalose in the response of Ae. albopictus to cadmium stress, providing insights into the effects of heavy metal stress on trehalose metabolism in an insect model.
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Affiliation(s)
- Lingyuan Yu
- Hangzhou Key Laboratory of Animal Adaptation and Evolution, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Xumin Chen
- Hangzhou Key Laboratory of Animal Adaptation and Evolution, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Ying Wei
- Hangzhou Key Laboratory of Animal Adaptation and Evolution, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Yanjuan Ding
- Hangzhou Key Laboratory of Animal Adaptation and Evolution, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Qiwei Wang
- Hangzhou Key Laboratory of Animal Adaptation and Evolution, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Shaohua Wang
- Hangzhou Key Laboratory of Animal Adaptation and Evolution, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Bin Tang
- Hangzhou Key Laboratory of Animal Adaptation and Evolution, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China
| | - Shigui Wang
- Hangzhou Key Laboratory of Animal Adaptation and Evolution, College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, China.
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219
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Dostal V, Wood SD, Thomas CT, Han Y, Lau E, Lam MPY. Proteomic signatures of acute oxidative stress response to paraquat in the mouse heart. Sci Rep 2020; 10:18440. [PMID: 33116222 PMCID: PMC7595225 DOI: 10.1038/s41598-020-75505-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 10/15/2020] [Indexed: 01/11/2023] Open
Abstract
The heart is sensitive to oxidative damage but a global view on how the cardiac proteome responds to oxidative stressors has yet to fully emerge. Using quantitative tandem mass spectrometry, we assessed the effects of acute exposure of the oxidative stress inducer paraquat on protein expression in mouse hearts. We observed widespread protein expression changes in the paraquat-exposed heart especially in organelle-containing subcellular fractions. During cardiac response to acute oxidative stress, proteome changes are consistent with a rapid reduction of mitochondrial metabolism, coupled with activation of multiple antioxidant proteins, reduction of protein synthesis and remediation of proteostasis. In addition to differential expression, we saw evidence of spatial reorganizations of the cardiac proteome including the translocation of hexokinase 2 to more soluble fractions. Treatment with the antioxidants Tempol and MitoTEMPO reversed many proteomic signatures of paraquat but this reversal was incomplete. We also identified a number of proteins with unknown function in the heart to be triggered by paraquat, suggesting they may have functions in oxidative stress response. Surprisingly, protein expression changes in the heart correlate poorly with those in the lung, consistent with differential sensitivity or stress response in these two organs. The results and data set here could provide insights into oxidative stress responses in the heart and avail the search for new therapeutic targets.
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Affiliation(s)
- Vishantie Dostal
- Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA.,Department of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA.,Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA.,Consortium for Fibrosis Research & Translation, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Silas D Wood
- Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA.,Department of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA.,Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA.,Consortium for Fibrosis Research & Translation, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Cody T Thomas
- Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA.,Department of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Yu Han
- Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA.,Department of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA.,Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA.,Consortium for Fibrosis Research & Translation, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Edward Lau
- Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA.,Department of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA.,Consortium for Fibrosis Research & Translation, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Maggie P Y Lam
- Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA. .,Department of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA. .,Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA. .,Consortium for Fibrosis Research & Translation, University of Colorado Anschutz Medical Campus, Aurora, CO, 80045, USA.
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220
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Gabriel FÂ, Hauser-Davis RA, Soares L, Mazzuco ACA, Rocha RCC, Saint Pierre TD, Saggioro E, Correia FV, Ferreira TO, Bernardino AF. Contamination and oxidative stress biomarkers in estuarine fish following a mine tailing disaster. PeerJ 2020; 8:e10266. [PMID: 33194429 PMCID: PMC7602685 DOI: 10.7717/peerj.10266] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 10/07/2020] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND The Rio Doce estuary, in Brazil, was impacted by the deposition of iron mine tailings, caused by the collapse of a dam in 2015. Based on published baseline datasets, the estuary has been experiencing chronic trace metal contamination effects since 2017, with potential bioaccumulation in fishes and human health risks. As metal and metalloid concentrations in aquatic ecosystems pose severe threats to the aquatic biota, we hypothesized that the trace metals in estuarine sediments nearly two years after the disaster would lead to bioaccumulation in demersal fishes and result in the biosynthesis of metal-responsive proteins. METHODS We measured As, Cd, Cr, Cu, Fe, Mn, Pb, Se and Zn concentrations in sediment samples in August 2017 and compared to published baseline levels. Also, trace metals (As, Cd, Cr, Cu, Fe, Hg, Mn, Pb, Se and Zn) and protein (metallothionein and reduced glutathione) concentrations were quantified in the liver and muscle tissues of five fish species (Cathorops spixii, Genidens genidens, Eugerres brasilianus, Diapterus rhombeus and Mugil sp.) from the estuary, commonly used as food sources by local populations. RESULTS Our results revealed high trace metal concentrations in estuarine sediments, when compared to published baseline values for the same estuary. The demersal fish species C. spixii and G. genidens had the highest concentrations of As, Cr, Mn, Hg, and Se in both, hepatic and muscle, tissues. Trace metal bioaccumulation in fish was correlated with the biosynthesis of metallothionein and reduced glutathione in both, liver and muscle, tissues, suggesting active physiological responses to contamination sources. The trace metal concentrations determined in fish tissues were also present in the estuarine sediments at the time of this study. Some elements had concentrations above the maximum permissible limits for human consumption in fish muscles (e.g., As, Cr, Mn, Se and Zn), suggesting potential human health risks that require further studies. Our study supports the high biogeochemical mobility of toxic elements between sediments and the bottom-dwelling biota in estuarine ecosystems.
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Affiliation(s)
- Fabrício Â. Gabriel
- Departamento de Oceanografia e Ecologia, Universidade Federal do Espírito Santo, Vitória, Espírito Santo, Brasil
| | | | - Lorena Soares
- Departamento de Ciências Naturais, Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brasil
| | - Ana Carolina A. Mazzuco
- Departamento de Oceanografia e Ecologia, Universidade Federal do Espírito Santo, Vitória, Espírito Santo, Brasil
| | | | - Tatiana D. Saint Pierre
- Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brasil
| | - Enrico Saggioro
- Departamento de Saneamento e Saúde Ambiental, Fundação Oswaldo Cruz, Rio de Janeiro, Rio de Janeiro, Brasil
| | - Fabio Verissimo Correia
- Departamento de Ciências Naturais, Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brasil
| | - Tiago O. Ferreira
- Departamento de Ciência do Solo, Escola Superior de Agricultura Luiz Queiroz, Universidade de São Paulo, Piracicaba, São Paulo, Brasil
| | - Angelo F. Bernardino
- Departamento de Oceanografia e Ecologia, Universidade Federal do Espírito Santo, Vitória, Espírito Santo, Brasil
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Elia AC, Burioli E, Magara G, Pastorino P, Caldaroni B, Menconi V, Dörr AJM, Colombero G, Abete MC, Prearo M. Oxidative stress ecology on Pacific oyster Crassostrea gigas from lagoon and offshore Italian sites. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 739:139886. [PMID: 32554117 DOI: 10.1016/j.scitotenv.2020.139886] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 05/27/2020] [Accepted: 05/31/2020] [Indexed: 05/29/2023]
Abstract
Crassostrea gigas is a sentinel species along the Italian coast. In mussels, the levels of oxidative stress biomarkers can be modulated by several environmental pollutants or pathogens and also fluctuate in response to reproductive stages and seasonal changes. In this study, adult Crassostrea gigas were sampled during summer and autumn from two lagoon and two offshore sites along the Adriatic coast of Italy in order to investigate the influence of seasonality on oxidative stress biomarkers. Trace elements load of Al, As, Cd, Cr, Cu, Fe, Mn, Ni, Pb, Se and Zn suggests low contamination for lagoon and offshore sites. Levels of total glutathione, superoxide dismutase, catalase, glutathione peroxidases, glutathione reductase and glutathione S-transferase were analyzed in digestive gland and gills of the Pacific oysters in June, July, September and October. OsHV-1 and Vibrio aestuarianus were detected in lagoon sites, but both pathogens did not affect the biomarkers levels in both tissues. Although several biological responses were found different among the four sites in the same month, principal component analysis revealed similar trend in biomarkers levels between sites during the whole sampling period. On the other hand, a different biochemical pattern through the months emerged, suggesting that the level of oxidative stress biomarkers in both tissues may be related to seasonal progress and biological cycle of oysters sampled from the two lagoons and offshore sites along the Italian coasts of the Mediterranean Sea.
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Affiliation(s)
- Antonia Concetta Elia
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, Italy.
| | | | - Gabriele Magara
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, Italy
| | - Paolo Pastorino
- The Veterinary Medical Research Institute for Piemonte, Liguria and Valle d'Aosta, 10154 Torino, Italy
| | - Barbara Caldaroni
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, Italy
| | - Vasco Menconi
- The Veterinary Medical Research Institute for Piemonte, Liguria and Valle d'Aosta, 10154 Torino, Italy
| | | | - Giorgio Colombero
- The Veterinary Medical Research Institute for Piemonte, Liguria and Valle d'Aosta, 10154 Torino, Italy
| | - Maria Cesarina Abete
- The Veterinary Medical Research Institute for Piemonte, Liguria and Valle d'Aosta, 10154 Torino, Italy
| | - Marino Prearo
- The Veterinary Medical Research Institute for Piemonte, Liguria and Valle d'Aosta, 10154 Torino, Italy
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222
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Targonska S, Sikora M, Marycz K, Smieszek A, Wiglusz RJ. Theranostic Applications of Nanostructured Silicate-Substituted Hydroxyapatite Codoped with Eu 3+ and Bi 3+ Ions-A Novel Strategy for Bone Regeneration. ACS Biomater Sci Eng 2020; 6:6148-6160. [PMID: 33449662 DOI: 10.1021/acsbiomaterials.0c00824] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In this paper, nanocrystalline silicate-substituted hydroxyapatites (nSi-HAps) codoped with Eu3+ were functionalized with Bi3+ ions. Biomaterials were synthesized using a microwave-assisted hydrothermal method and heat-treated at 700 °C. The concentration of Eu3+ ions was established at 1 mol %, and the concentration of Bi3+ was in the range of 0.5-2 mol %. The physicochemical properties of the obtained biomaterials were determined using previously established methods, including X-ray powder diffraction, scanning electron microscopy techniques, and IR spectroscopy. Particle sizes obtained in this study were in the range of 22-65 nm, which was established by the Rietveld method. The luminescence properties of the Eu3+ ion-doped silicate-substituted apatite were recorded depending on the bismuth(III) concentration. The cytocompatibility of obtained biomaterials was tested using the model of mouse pre-osteoblasts cell line, that is, MC3T3-E1. We showed that the obtained biomaterials exerted anti-apoptotic effect, reducing the number of early and late apoptotic cells and decreasing caspase activity and reactive oxygen species accumulation. The transcripts levels of genes associated with apoptosis confirmed the anti-apoptotic effect of the biomaterials. Increased metabolic activity of MC3T3-E1 in cultures with biomaterials functionalized with Bi3+ ions has been observed. Moreover, the determined profile of osteogenic markers indicates that the obtained matrices, that is, Eu3+:nSi-HAp functionalized with Bi3+ ions, exert pro-osteogenic properties. The biological features of Eu3+:nSi-HAp modified with Bi3+ ions are highly desired in terms of functional tissue restoration and further efficient osteointegration.
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Affiliation(s)
- Sara Targonska
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, 50-422 Wroclaw, Poland
| | - Mateusz Sikora
- The Department of Experimental Biology, The Faculty of Biology and Animal Science, University of Environmental and Life Sciences Wroclaw, 38C Chelmonskiego Street, 50-630 Wroclaw, Poland
| | - Krzysztof Marycz
- The Department of Experimental Biology, The Faculty of Biology and Animal Science, University of Environmental and Life Sciences Wroclaw, 38C Chelmonskiego Street, 50-630 Wroclaw, Poland.,International Institute of Translational Medicine, Jesionowa 11 Street, 55-124 Malin, Poland.,Collegium Medicum, Institute of Medical Science, Cardinal Stefan Wyszynski University (UKSW), Woycickiego 1/3, 01-938 Warsaw, Poland
| | - Agnieszka Smieszek
- The Department of Experimental Biology, The Faculty of Biology and Animal Science, University of Environmental and Life Sciences Wroclaw, 38C Chelmonskiego Street, 50-630 Wroclaw, Poland
| | - Rafal J Wiglusz
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, 50-422 Wroclaw, Poland.,Centre for Advanced Materials and Smart Structures, Polish Academy of Sciences, Okolna 2, 50-950 Wroclaw, Poland
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223
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Radwan MA, El-Gendy KS, Gad AF. Biomarker responses in terrestrial gastropods exposed to pollutants: A comprehensive review. CHEMOSPHERE 2020; 257:127218. [PMID: 32497833 DOI: 10.1016/j.chemosphere.2020.127218] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 05/23/2020] [Accepted: 05/24/2020] [Indexed: 06/11/2023]
Abstract
The chemical contamination of terrestrial ecosystems is a great concern as these ecosystems are the target of most of the pollutants derived from anthropogenic activities such as pesticides, heavy metals, nanoparticles, and others. Terrestrial gastropods are considered to be excellent sentinel organisms for biological monitoring of environmental pollution, as they have the ability to accumulate chemicals in their tissues and exhibit a great potential to evaluate the ecological effects of pollutants in terrestrial ecosystems. The use of biomarkers as sensitive parameters to estimate the exposure or resulting effects of chemicals have received considerable attention. The successful biomarker must be applicable in the laboratory and field conditions. Many biomarkers have been examined to understand the adverse effects of pollutants. In this review, we shed light on different types of biomarkers, such as oxidative stress, genotoxicity and immunotoxicity as diagnostic tools for monitoring the impacts of pollution. These biomarkers can provide information about early detection and quantification of these impacts during their initial manifestations and can facilitate the implementation of a rapid preventive and/or restorative responses in the affected ecosystems, as well as single or multiple biomarkers can be integrated into routine monitoring programs.
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Affiliation(s)
- M A Radwan
- Department of Pesticide Chemistry and Technology, Faculty of Agriculture, University of Alexandria, El-Shatby, 21545, Alexandria, Egypt.
| | - K S El-Gendy
- Department of Pesticide Chemistry and Technology, Faculty of Agriculture, University of Alexandria, El-Shatby, 21545, Alexandria, Egypt
| | - A F Gad
- Department of Animal Pests, Plant Protection Research Institute, Agricultural Research Center, Alexandria, Egypt
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224
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De Oliveira VH, Ullah I, Dunwell JM, Tibbett M. Bioremediation potential of Cd by transgenic yeast expressing a metallothionein gene from Populus trichocarpa. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 202:110917. [PMID: 32800252 DOI: 10.1016/j.ecoenv.2020.110917] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/09/2020] [Accepted: 06/17/2020] [Indexed: 06/11/2023]
Abstract
Cadmium (Cd) is an extremely toxic environmental pollutant with high mobility in soils, which can contaminate groundwater, increasing its risk of entering the food chain. Yeast biosorption can be a low-cost and effective method for removing Cd from contaminated aqueous solutions. We transformed wild-type Saccharomyces cerevisiae (WT) with two versions of a Populus trichocarpa gene (PtMT2b) coding for a metallothionein: one with the original sequence (PtMT2b 'C') and the other with a mutated sequence, with an amino acid substitution (C3Y, named here: PtMT2b 'Y'). WT and both transformed yeasts were grown under Cd stress, in agar (0; 10; 20; 50 μM Cd) and liquid medium (0; 10; 20 μM Cd). Yeast growth was assessed visually and by spectrometry OD600. Cd removal from contaminated media and intracellular accumulation were also quantified. PtMT2b 'Y' was also inserted into mutant strains: fet3fet4, zrt1zrt2 and smf1, and grown under Fe-, Zn- and Mn-deficient media, respectively. Yeast strains had similar growth under 0 μM, but differed under 20 μM Cd, the order of tolerance was: WT < PtMT2b 'C' < PtMT2b 'Y', the latter presenting 37% higher growth than the strain with PtMT2b 'C'. It also extracted ~80% of the Cd in solution, and had higher intracellular Cd than WT. Mutant yeasts carrying PtMT2b 'Y' had slightly higher growth in Mn- and Fe-deficient media than their non-transgenic counterparts, suggesting the transgenic protein may chelate these metals. S. cerevisiae carrying the altered poplar gene offers potential for bioremediation of Cd from wastewaters or other contaminated liquids.
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Affiliation(s)
- Vinicius Henrique De Oliveira
- Department of Sustainable Land Management & Soil Research Centre, School of Agricultura, Policy and Development, University of Reading, RG6 6AR, UK
| | - Ihsan Ullah
- School of Agriculture, Policy and Development, University of Reading, RG6 6AR, UK
| | - Jim M Dunwell
- School of Agriculture, Policy and Development, University of Reading, RG6 6AR, UK
| | - Mark Tibbett
- Department of Sustainable Land Management & Soil Research Centre, School of Agricultura, Policy and Development, University of Reading, RG6 6AR, UK.
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225
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Jackson AC, Liu J, Vallanat B, Jones C, Nelms MD, Patlewicz G, Corton JC. Identification of novel activators of the metal responsive transcription factor (MTF-1) using a gene expression biomarker in a microarray compendium. Metallomics 2020; 12:1400-1415. [PMID: 32661532 PMCID: PMC10776036 DOI: 10.1039/d0mt00071j] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
Environmental exposure to metals is known to cause a number of human toxicities including cancer. Metal-responsive transcription factor 1 (MTF-1) is an important component of metal regulation systems in mammalian cells. Here, we describe a novel method to identify chemicals that activate MTF-1 based on microarray profiling data. MTF-1 biomarker genes were identified that exhibited consistent, robust expression across 10 microarray comparisons examining the effects of metals (zinc, nickel, lead, arsenic, mercury, and silver) on gene expression in human cells. A subset of the resulting 81 biomarker genes was shown to be altered by knockdown of the MTF1 gene including metallothionein family members and a zinc transporter. The ability to correctly identify treatment conditions that activate MTF-1 was determined by comparing the biomarker to microarray comparisons from cells exposed to reference metal activators of MTF-1 using the rank-based Running Fisher algorithm. The balanced accuracy for prediction was 93%. The biomarker was then used to identify organic chemicals that activate MTF-1 from a compendium of 11 725 human gene expression comparisons representing 2582 chemicals. There were 700 chemicals identified that included those known to interact with cellular metals, such as clioquinol and disulfiram, as well as a set of novel chemicals. All nine of the novel chemicals selected for validation were confirmed to activate MTF-1 biomarker genes in MCF-7 cells and to lesser extents in MTF1-null cells by qPCR and targeted RNA-Seq. Overall, our work demonstrates that the biomarker for MTF-1 coupled with the Running Fisher test is a reliable strategy to identify novel chemical modulators of metal homeostasis using gene expression profiling.
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Affiliation(s)
- Abigail C Jackson
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 T.W. Alexander Dr. MD-B105-3, Research Triangle Park, NC 27711, USA. and Department of Chemistry, Duke University, Durham, NC 27708, USA
| | - Jie Liu
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 T.W. Alexander Dr. MD-B105-3, Research Triangle Park, NC 27711, USA.
| | - Beena Vallanat
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 T.W. Alexander Dr. MD-B105-3, Research Triangle Park, NC 27711, USA.
| | - Carlton Jones
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 T.W. Alexander Dr. MD-B105-3, Research Triangle Park, NC 27711, USA.
| | - Mark D Nelms
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 T.W. Alexander Dr. MD-B105-3, Research Triangle Park, NC 27711, USA. and Oak Ridge Institute for Science and Education, Oak Ridge, TN, USA
| | - Grace Patlewicz
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 T.W. Alexander Dr. MD-B105-3, Research Triangle Park, NC 27711, USA.
| | - J Christopher Corton
- Center for Computational Toxicology and Exposure, US Environmental Protection Agency, 109 T.W. Alexander Dr. MD-B105-3, Research Triangle Park, NC 27711, USA.
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226
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Nam YH, Jeong SY, Kim YH, Rodriguez I, Nuankaew W, Bhawal UK, Hong BN, Kang TH. Anti-aging effects of Korean Red Ginseng (KRG) in differentiated embryo chondrocyte (DEC) knockout mice. J Ginseng Res 2020; 45:183-190. [PMID: 33437170 PMCID: PMC7790900 DOI: 10.1016/j.jgr.2020.09.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 08/06/2020] [Accepted: 09/11/2020] [Indexed: 01/15/2023] Open
Abstract
Background The circadian rhythm is the internal clock that controls sleep-wake cycles, metabolism, cognition, and several processes in the body, and its disruption has been associated with aging. The differentiated embryo chondrocyte (Dec) gene is related to circadian rhythm. To our knowledge, there are no reports of the relationship between dec gene expression and KRG effect. Therefore, we treated Dec gene knockout (KO) aging mice with KRG to study anti-aging related effects and possible mechanisms. Methods We evaluated KRG and expression of Dec genes in an ototoxicity model. Dec genes expression in livers of aging mice was further analyzed. Then, we assessed the effects of DEC KO on hearing function in mice by ABR. Finally, we performed DNA microarray to identify KRG-related gene expression changes in mouse liver and assessed the results using KEGG analysis. Results KRG decreased the expression of Dec genes in ototoxicity model, which may contribute to its anti-aging efficacy. Moreover, KRG suppressed Dec genes expression in liver of wild type indicating inhibition of senescence. ABR test indicated that KRG improved auditory function in aging mouse, demonstrating KRG efficacy on aging related diseases. Conclusion Finally, in KEGG analysis of 238 genes that were activated and 158 that were inhibited by KRG in DEC KO mice, activated genes were involved in proliferation signaling, mineral absorption, and PPAR signaling whereas the inhibited genes were involved in arachidonic acid metabolism and peroxisomes. Our data indicate that inhibition of senescence-related Dec genes may explain the anti-aging efficacy of KRG.
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Affiliation(s)
- Youn Hee Nam
- Department of Oriental Medicine Biotechnology, College of Life Sciences and Graduate School of Biotechnology, Kyung Hee University, Gyeonggi, Republic of Korea
| | - Seo Yule Jeong
- Department of Oriental Medicine Biotechnology, College of Life Sciences and Graduate School of Biotechnology, Kyung Hee University, Gyeonggi, Republic of Korea
| | - Yun Hee Kim
- Department of Oriental Medicine Biotechnology, College of Life Sciences and Graduate School of Biotechnology, Kyung Hee University, Gyeonggi, Republic of Korea
| | - Isabel Rodriguez
- Department of Oriental Medicine Biotechnology, College of Life Sciences and Graduate School of Biotechnology, Kyung Hee University, Gyeonggi, Republic of Korea
| | - Wanlapa Nuankaew
- Department of Oriental Medicine Biotechnology, College of Life Sciences and Graduate School of Biotechnology, Kyung Hee University, Gyeonggi, Republic of Korea
| | - Ujjal K. Bhawal
- Department of Biochemistry and Molecular Biology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Bin Na Hong
- Department of Oriental Medicine Biotechnology, College of Life Sciences and Graduate School of Biotechnology, Kyung Hee University, Gyeonggi, Republic of Korea
| | - Tong Ho Kang
- Department of Oriental Medicine Biotechnology, College of Life Sciences and Graduate School of Biotechnology, Kyung Hee University, Gyeonggi, Republic of Korea
- Corresponding author. Department of Oriental Medicine Biotechnology, College of Life Sciences and Graduate School of Biotechnology, Kyung Hee University, Gyeonggi, 17104, Republic of Korea
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227
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Pan CY, Lin FY, Kao LS, Huang CC, Liu PS. Zinc oxide nanoparticles modulate the gene expression of ZnT1 and ZIP8 to manipulate zinc homeostasis and stress-induced cytotoxicity in human neuroblastoma SH-SY5Y cells. PLoS One 2020; 15:e0232729. [PMID: 32915786 PMCID: PMC7485861 DOI: 10.1371/journal.pone.0232729] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 08/27/2020] [Indexed: 11/19/2022] Open
Abstract
Zinc ions (Zn2+) are important messenger molecules involved in various physiological functions. To maintain the homeostasis of cytosolic Zn2+ concentration ([Zn2+]c), Zrt/Irt-related proteins (ZIPs) and Zn2+ transporters (ZnTs) are the two families of proteins responsible for decreasing and increasing the [Zn2+]c, respectively, by fluxing Zn2+ across the membranes of the cell and intracellular compartments in opposite directions. Most studies focus on the cytotoxicity incurred by a high concentration of [Zn2+]c and less investigate the [Zn2+]c at physiological levels. Zinc oxide-nanoparticle (ZnO-NP) is blood brain barrier-permeable and elevates the [Zn2+]c to different levels according to the concentrations of ZnO-NP applied. In this study, we mildly elevated the [Zn2+]c by ZnO-NP at concentrations below 1 μg/ml, which had little cytotoxicity, in cultured human neuroblastoma SH-SY5Y cells and characterized the importance of Zn2+ transporters in 6-hydroxy dopamine (6-OHDA)-induced cell death. The results show that ZnO-NP at low concentrations elevated the [Zn2+]c transiently in 6 hr, then declined gradually to a basal level in 24 hr. Knocking down the expression levels of ZnT1 (located mostly at the plasma membrane) and ZIP8 (present in endosomes and lysosomes) increased and decreased the ZnO-NP-induced elevation of [Zn2+]c, respectively. ZnO-NP treatment reduced the basal levels of reactive oxygen species and Bax/Bcl-2 mRNA ratios; in addition, ZnO-NP decreased the 6-OHDA-induced ROS production, p53 expression, and cell death. These results show that ZnO-NP-induced mild elevation in [Zn2+]c activates beneficial effects in reducing the 6-OHDA-induced cytotoxic effects. Therefore, brain-delivery of ZnO-NP can be regarded as a potential therapy for neurodegenerative diseases.
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Affiliation(s)
- Chien-Yuan Pan
- Department of Life Science and Institute of Zoology, National Taiwan University, Taipei, Taiwan
| | - Fang-Yu Lin
- Department of Microbiology, Soochow University, Taipei, Taiwan
| | - Lung-Sen Kao
- Brain Research Center, National Yang-Ming University, Taipei, Taiwan
- Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei, Taiwan
| | - Chien-Chang Huang
- Department of Life Sciences and Institute of Genome Sciences, National Yang-Ming University, Taipei, Taiwan
| | - Pei-Shan Liu
- Department of Microbiology, Soochow University, Taipei, Taiwan
- * E-mail:
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228
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Ho-Plagaro A, Santiago-Fernandez C, Rodríguez-Díaz C, Lopez-Gómez C, Garcia-Serrano S, Rodríguez-Pacheco F, Valdes S, Rodríguez-Cañete A, Alcaín-Martínez G, Ruiz-Santana N, Vázquez-Pedreño L, García-Fuentes E. Different Expression of Duodenal Genes Related to Insulin Resistance Between Nonobese Women and Those with Severe Obesity. Obesity (Silver Spring) 2020; 28:1708-1717. [PMID: 32729246 DOI: 10.1002/oby.22902] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 04/14/2020] [Accepted: 05/07/2020] [Indexed: 12/26/2022]
Abstract
OBJECTIVE The study aim was to identify changes in duodenal gene expression associated with the development of insulin resistance according to the BMI of women. METHODS Duodenal samples were assessed by microarray in four groups of women, nonobese women and women with severe obesity, with both low and high insulin resistance. RESULTS There was a group of shared downregulated differentially expressed genes (DEGs) related to tissue homeostasis and antimicrobial humoral response in women with higher insulin resistance both with severe obesity and without obesity. In the exclusive DEGs found in severe obesity, downregulated DEGs related to the regulation of the defense response to bacterium and cell adhesion, involving pathways related to the immune system, inflammation, and xenobiotic metabolism, were observed. In the exclusive DEGs from nonobese women with higher insulin resistance, upregulated DEGs mainly related to the regulation of lipoprotein lipase activity, very low-density lipoprotein particle remodeling, lipid metabolic process, antigen processing, and the presentation of peptide antigen were found. CONCLUSIONS Independent of BMI, higher insulin resistance was associated with a downregulation of duodenal DEGs mainly related to the immune system, inflammation, and xenobiotic metabolism. Also, intestinal lipoprotein metabolism may have a certain relevance in the regulation of insulin resistance in nonobese women.
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Affiliation(s)
- Ailec Ho-Plagaro
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
- Unidad de Gestión Clínica de Aparato Digestivo, Hospital Universitario Virgen de la Victoria, Málaga, Spain
- Departamento de Biología Celular, Genética y Fisiología, Universidad de Málaga, Málaga, Spain
| | - Concepción Santiago-Fernandez
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
- Unidad de Gestión Clínica de Aparato Digestivo, Hospital Universitario Virgen de la Victoria, Málaga, Spain
- Departamento de Medicina y Dermatología, Universidad de Málaga, Málaga, Spain
| | - Cristina Rodríguez-Díaz
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
- Unidad de Gestión Clínica de Aparato Digestivo, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - Carlos Lopez-Gómez
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
- Unidad de Gestión Clínica de Aparato Digestivo, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - Sara Garcia-Serrano
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Regional Universitario de Málaga, Málaga, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas-CIBERDEM, Málaga, Spain
| | - Francisca Rodríguez-Pacheco
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
- Unidad de Gestión Clínica de Aparato Digestivo, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - Sergio Valdes
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Regional Universitario de Málaga, Málaga, Spain
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas-CIBERDEM, Málaga, Spain
| | - Alberto Rodríguez-Cañete
- Unidad de Gestión Clínica de Cirugía General, Digestiva y Trasplantes, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Guillermo Alcaín-Martínez
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
- Unidad de Gestión Clínica de Aparato Digestivo, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - Natalia Ruiz-Santana
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
- Unidad de Gestión Clínica de Aparato Digestivo, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - Luis Vázquez-Pedreño
- Unidad de Gestión Clínica de Aparato Digestivo, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Eduardo García-Fuentes
- Instituto de Investigación Biomédica de Málaga-IBIMA, Málaga, Spain
- Unidad de Gestión Clínica de Aparato Digestivo, Hospital Universitario Virgen de la Victoria, Málaga, Spain
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229
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Ex-situ induction of Metallothionein gene in Lybiodrilus violaceous post cadmium and zinc exposure. GENE REPORTS 2020. [DOI: 10.1016/j.genrep.2020.100701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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230
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Yi W, Lu Y, Zhong S, Zhang M, Sun L, Dong H, Wang M, Wei M, Xie H, Qu H, Peng R, Hong J, Yao Z, Tong Y, Wang W, Ma Q, Liu Z, Ma Y, Li S, Yin C, Liu J, Ma C, Wang X, Wu Q, Xue T. A single-cell transcriptome atlas of the aging human and macaque retina. Natl Sci Rev 2020; 8:nwaa179. [PMID: 34691611 PMCID: PMC8288367 DOI: 10.1093/nsr/nwaa179] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 07/09/2020] [Accepted: 07/24/2020] [Indexed: 12/23/2022] Open
Abstract
The human retina is a complex neural tissue that detects light and sends visual information to the brain. However, the molecular and cellular processes that underlie aging primate retina remain unclear. Here, we provide a comprehensive transcriptomic atlas based on 119 520 single cells of the foveal and peripheral retina of humans and macaques covering different ages. The molecular features of retinal cells differed between the two species, suggesting distinct regional and species specializations of the human and macaque retinae. In addition, human retinal aging occurred in a region- and cell-type-specific manner. Aging of human retina exhibited a foveal to peripheral gradient. MYO9A− rods and a horizontal cell subtype were greatly reduced in aging retina, indicating their vulnerability to aging. Moreover, we generated a dataset showing the cell-type- and region-specific gene expression associated with 55 types of human retinal disease, which provides a foundation to understanding of the molecular and cellular mechanisms underlying human retinal diseases. Such datasets are valuable to understanding of the molecular characteristics of primate retina, as well as molecular regulation of aging progression and related diseases.
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Affiliation(s)
- Wenyang Yi
- Eye Center at The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
| | - Yufeng Lu
- State Key Laboratory of Brain and Cognitive Science, Institute of Brain-Intelligence Technology (Shanghai), Bioland Laboratory (Guangzhou), Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Suijuan Zhong
- State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing 100875, China
| | - Mei Zhang
- Eye Center at The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
| | - Le Sun
- State Key Laboratory of Brain and Cognitive Science, Institute of Brain-Intelligence Technology (Shanghai), Bioland Laboratory (Guangzhou), Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Hao Dong
- State Key Laboratory of Brain and Cognitive Science, Institute of Brain-Intelligence Technology (Shanghai), Bioland Laboratory (Guangzhou), Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Mengdi Wang
- State Key Laboratory of Brain and Cognitive Science, Institute of Brain-Intelligence Technology (Shanghai), Bioland Laboratory (Guangzhou), Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Min Wei
- Eye Center at The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
| | - Haohuan Xie
- Eye Center at The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
| | - Hongqiang Qu
- Department of Ophthalmology, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing 100191, China
| | - Rongmei Peng
- Department of Ophthalmology, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing 100191, China
| | - Jing Hong
- Department of Ophthalmology, Beijing Key Laboratory of Restoration of Damaged Ocular Nerve, Peking University Third Hospital, Beijing 100191, China
| | - Ziqin Yao
- Eye Center at The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
| | - Yunyun Tong
- Eye Center at The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
| | - Wei Wang
- State Key Laboratory of Brain and Cognitive Science, Institute of Brain-Intelligence Technology (Shanghai), Bioland Laboratory (Guangzhou), Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Qiang Ma
- State Key Laboratory of Brain and Cognitive Science, Institute of Brain-Intelligence Technology (Shanghai), Bioland Laboratory (Guangzhou), Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Zeyuan Liu
- State Key Laboratory of Brain and Cognitive Science, Institute of Brain-Intelligence Technology (Shanghai), Bioland Laboratory (Guangzhou), Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Yuqian Ma
- Eye Center at The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
| | - Shouzhen Li
- Eye Center at The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
| | - Chonghai Yin
- State Key Laboratory of Brain and Cognitive Science, Institute of Brain-Intelligence Technology (Shanghai), Bioland Laboratory (Guangzhou), Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Jianwei Liu
- State Key Laboratory of Brain and Cognitive Science, Institute of Brain-Intelligence Technology (Shanghai), Bioland Laboratory (Guangzhou), Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Chao Ma
- Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Xiaoqun Wang
- State Key Laboratory of Brain and Cognitive Science, Institute of Brain-Intelligence Technology (Shanghai), Bioland Laboratory (Guangzhou), Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Qian Wu
- State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing 100875, China
| | - Tian Xue
- Eye Center at The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230026, China
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231
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Hager S, Pape VFS, Pósa V, Montsch B, Uhlik L, Szakács G, Tóth S, Jabronka N, Keppler BK, Kowol CR, Enyedy ÉA, Heffeter P. High Copper Complex Stability and Slow Reduction Kinetics as Key Parameters for Improved Activity, Paraptosis Induction, and Impact on Drug-Resistant Cells of Anticancer Thiosemicarbazones. Antioxid Redox Signal 2020; 33:395-414. [PMID: 32336116 DOI: 10.1089/ars.2019.7854] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Aims: Due to their significant biological activity, thiosemicarbazones (TSCs) are promising candidates for anticancer therapy. In part, the efficacy of TSCs is linked to their ability to chelate essential metal ions such as copper and iron. Triapine, the best-studied anticancer TSC, has been tested clinically with promising results in hematological diseases. During the past few years, a novel subclass of TSCs with improved anticancer activity was found to induce paraptosis, a recently characterized form of cell death. The aim of this study was to identify structural and chemical properties associated with anticancer activity and paraptosis induction of TSCs. Results: When testing a panel of structurally related TSCs, compounds with nanomolar anticancer activity and paraptosis-inducing properties showed higher copper(II) complex solution stability and a slower reduction rate, which resulted in reduced redox activity. In contrast, TSCs with lower anticancer activity induced higher levels of superoxide that rapidly stimulated superoxide dismutase expression in treated cells, effectively protecting the cells from drug-induced redox stress. Innovation: Consequently, we hypothesize that in the case of close Triapine derivatives, intracellular reduction leads to rapid dissociation of intracellularly formed copper complexes. In contrast, TSCs characterized by highly stable, slowly reducible copper(II) complexes are able to reach new intracellular targets such as the endoplasmic reticulum-resident protein disulfide isomerase. Conclusion: The additional modes of actions observed with highly active TSC derivatives are based on intracellular formation of stable copper complexes, offering a new approach to combat (drug-resistant) cancer cells.
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Affiliation(s)
- Sonja Hager
- Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
- Research Cluster 'Translational Cancer Therapy Research,' Vienna, Austria
| | - Veronika F S Pape
- Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
- Department of Physiology, Semmelweis University, Budapest, Hungary
| | - Vivien Pósa
- Department of Inorganic and Analytical Chemistry, Interdisciplinary Excellence Centre, University of Szeged, Szeged, Hungary
- MTA-SZTE Lendület Functional Metal Complexes Research Group, University of Szeged, Szeged, Hungary
| | - Bianca Montsch
- Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
- Research Cluster 'Translational Cancer Therapy Research,' Vienna, Austria
| | - Lukas Uhlik
- Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
- Research Cluster 'Translational Cancer Therapy Research,' Vienna, Austria
| | - Gergely Szakács
- Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
- Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - Szilárd Tóth
- Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - Nikolett Jabronka
- Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - Bernhard K Keppler
- Research Cluster 'Translational Cancer Therapy Research,' Vienna, Austria
- Faculty of Chemistry, Institute of Inorganic Chemistry, University of Vienna, Vienna, Austria
| | - Christian R Kowol
- Research Cluster 'Translational Cancer Therapy Research,' Vienna, Austria
- Faculty of Chemistry, Institute of Inorganic Chemistry, University of Vienna, Vienna, Austria
| | - Éva A Enyedy
- Department of Inorganic and Analytical Chemistry, Interdisciplinary Excellence Centre, University of Szeged, Szeged, Hungary
- MTA-SZTE Lendület Functional Metal Complexes Research Group, University of Szeged, Szeged, Hungary
| | - Petra Heffeter
- Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
- Research Cluster 'Translational Cancer Therapy Research,' Vienna, Austria
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232
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Walls JF, Subleski JJ, Palmieri EM, Gonzalez-Cotto M, Gardiner CM, McVicar DW, Finlay DK. Metabolic but not transcriptional regulation by PKM2 is important for natural killer cell responses. eLife 2020; 9:59166. [PMID: 32812866 PMCID: PMC7467725 DOI: 10.7554/elife.59166] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 08/15/2020] [Indexed: 12/25/2022] Open
Abstract
Natural Killer (NK) cells have an important role in immune responses to viruses and tumours. Integrating changes in signal transduction pathways and cellular metabolism is essential for effective NK cells responses. The glycolytic enzyme Pyruvate Kinase Muscle 2 (PKM2) has described roles in regulating glycolytic flux and signal transduction, particularly gene transcription. While PKM2 expression is robustly induced in activated NK cells, mice lacking PKM2 in NK cells showed no defect in NK cell metabolism, transcription or antiviral responses to MCMV infection. NK cell metabolism was maintained due to compensatory PKM1 expression in PKM2-null NK cells. To further investigate the role of PKM2, we used TEPP-46, which increases PKM2 catalytic activity while inhibiting any PKM2 signalling functions. NK cells activated with TEPP-46 had reduced effector function due to TEPP-46-induced increases in oxidative stress. Overall, PKM2-regulated glycolytic metabolism and redox status, not transcriptional control, facilitate optimal NK cells responses.
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Affiliation(s)
- Jessica F Walls
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland.,Laboratory of Cancer Immunometabolism, National Cancer Institute, Frederick, United States
| | - Jeff J Subleski
- Laboratory of Cancer Immunometabolism, National Cancer Institute, Frederick, United States
| | - Erika M Palmieri
- Laboratory of Cancer Immunometabolism, National Cancer Institute, Frederick, United States
| | - Marieli Gonzalez-Cotto
- Laboratory of Cancer Immunometabolism, National Cancer Institute, Frederick, United States
| | - Clair M Gardiner
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Daniel W McVicar
- Laboratory of Cancer Immunometabolism, National Cancer Institute, Frederick, United States
| | - David K Finlay
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland.,School of Pharmacy and Pharmaceutical Sciences, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
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233
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Grzeszczak K, Kwiatkowski S, Kosik-Bogacka D. The Role of Fe, Zn, and Cu in Pregnancy. Biomolecules 2020; 10:E1176. [PMID: 32806787 PMCID: PMC7463674 DOI: 10.3390/biom10081176] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/05/2020] [Accepted: 08/05/2020] [Indexed: 12/15/2022] Open
Abstract
Iron (Fe), copper (Cu), and zinc (Zn) are microelements essential for the proper functioning of living organisms. These elements participatein many processes, including cellular metabolism and antioxidant and anti-inflammatory defenses, and also influence enzyme activity, regulate gene expression, and take part in protein synthesis. Fe, Cu, and Zn have a significant impact on the health of pregnant women and in the development of the fetus, as well as on the health of the newborn. A proper concentration of these elements in the body of women during pregnancy reduces the risk of complications such as anemia, induced hypertension, low birth weight, preeclampsia, and postnatal complications. The interactions between Fe, Cu, and Zn influence their availability due to their similar physicochemical properties. This most often occurs during intestinal absorption, where metal ions compete for binding sites with transport compounds. Additionally, the relationships between these ions have a great influence on the course of reactions in the tissues, as well as on their excretion, which can be stimulated or delayed. This review aims to summarize reports on the influence of Fe, Cu, and Zn on the course of single and multiple pregnancies, and to discuss the interdependencies and mechanisms occurring between Fe, Cu, and Zn.
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Affiliation(s)
- Konrad Grzeszczak
- Department of Biology and Medical Parasitology, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland;
| | - Sebastian Kwiatkowski
- Department of Obstetrics and Gynecology, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland;
| | - Danuta Kosik-Bogacka
- Independent Laboratory of Pharmaceutical Botany, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
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234
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An'Nisa NZ, Morsin M, Sanudin R, Razali NL, Nafisah S. Controlled wet chemical synthesis of gold nanorods for triclopyr butotyl herbicide detection based-plasmonic sensor. SENSING AND BIO-SENSING RESEARCH 2020. [DOI: 10.1016/j.sbsr.2020.100359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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235
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García-Sánchez M, Jiménez-Pelayo L, Horcajo P, Collantes-Fernández E, Ortega-Mora LM, Regidor-Cerrillo J. Neospora caninum infection induces an isolate virulence-dependent pro-inflammatory gene expression profile in bovine monocyte-derived macrophages. Parasit Vectors 2020; 13:374. [PMID: 32711550 PMCID: PMC7382829 DOI: 10.1186/s13071-020-04239-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 07/15/2020] [Indexed: 01/22/2023] Open
Abstract
Background Neospora caninum is an obligate intracellular parasite, and its ability to survive inside host immune cells may be a key mechanism for the establishment of infection in cattle. In vitro studies carried out by our group have shown that N. caninum is able to replicate in bovine macrophages (MØs), alter their microbicidal mechanisms and exploit their motility. Furthermore, host-cell control seems to be isolate virulence-dependent. Methods To investigate the molecular basis underlying the innate responses in MØs against N. caninum and the mechanisms of parasite manipulation of the host cell environment, the transcriptome profile of bovine monocyte-derived MØs infected with high-virulence (Nc-Spain7) or low-virulence (Nc-Spain1H) N. caninum isolates was studied. Results Functional enrichment revealed upregulation of genes involved in chemokine signalling, inflammation, cell survival, and inhibition of genes related with metabolism and phagolysosome formation. MØs activation was characterized by the induction of a predominantly M1 phenotype with expression of TLR2, TLR3 and TLR9 and activation of the NF-ƙB signalling pathway. Heat-killed N. caninum tachyzoites failed to activate NF-ƙB, and to inhibit lysosomal activity and apoptosis, which indicates active modulation by the parasite. The FoxO signalling pathway, Th1-Th2 differentiation, glycosaminoglycan degradation and apoptosis were pathways enriched only for low virulent Nc-Spain1H infection. In addition, Nc-Spain1H infection upregulated the IL12A and IL8 pro-inflammatory cytokines, whereas IL23 was downregulated by high virulent Nc-Spain7. Conclusions This study revealed mechanisms implicated in the recognition of N. caninum by bovine MØs and in the development of the subsequent immune response. NF-ƙB seems to be the main signalling pathway implicated in the pro-inflammatory bovine MØs response against this pathogen. Apoptosis and phagolysosome maturation are processes repressed by N. caninum infection, which may guarantee its intracellular survival. The results also indicate that Nc-Spain7 may be able to partially circumvent the pro-inflammatory response whereas Nc-Spain1H induces a protective response to infection, which may explain the more efficient transmission of the high-virulence Nc-Spain7 isolate observed in vivo.![]()
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Affiliation(s)
- Marta García-Sánchez
- Saluvet, Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Ciudad Universitaria s/n, 28040, Madrid, Spain
| | - Laura Jiménez-Pelayo
- Saluvet, Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Ciudad Universitaria s/n, 28040, Madrid, Spain
| | - Pilar Horcajo
- Saluvet, Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Ciudad Universitaria s/n, 28040, Madrid, Spain
| | - Esther Collantes-Fernández
- Saluvet, Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Ciudad Universitaria s/n, 28040, Madrid, Spain
| | - Luis Miguel Ortega-Mora
- Saluvet, Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Ciudad Universitaria s/n, 28040, Madrid, Spain.
| | - Javier Regidor-Cerrillo
- Saluvet, Animal Health Department, Faculty of Veterinary Sciences, Complutense University of Madrid, Ciudad Universitaria s/n, 28040, Madrid, Spain. .,Saluvet-Innova, Faculty of Veterinary Sciences, Complutense University of Madrid, Ciudad Universitaria s/n, 28040, Madrid, Spain.
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236
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Savassi LA, Paschoalini AL, Arantes FP, Rizzo E, Bazzoli N. Heavy metal contamination in a highly consumed Brazilian fish: immunohistochemical and histopathological assessments. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:542. [PMID: 32712724 DOI: 10.1007/s10661-020-08515-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 07/20/2020] [Indexed: 06/11/2023]
Abstract
Due to industrial, rural, and domestic waste disposal, heavy metals such as cadmium (Cd), chromium (Cr), lead (Pb), zinc (Zn), copper (Cu), and iron (Fe) continually infiltrate aquatic environments. These pollutants do not degrade naturally and, thus, have a high capacity for bioaccumulation in tissues and organs. The present study uses histological and immunohistochemical analyses to evaluate the contamination status of Salminus franciscanus, a large and economically important fish. Levels of Cd, Cr, Pb, Zn, Cu, and Fe were evaluated by atomic absorption spectrometry in the liver and muscle of fish sampled from two tributaries of the upper São Francisco River Basin, Brazil: the Abaeté and Paraopeba Rivers. In addition, histopathological alterations and expressions of three environmental biomarkers were assessed: metallothionein (MT), heat shock protein-70 (HSP70), and cytochrome P450-1A (CYP1A). The results show that fish from the Paraopeba River are unsuitable for human consumption, with several metals being detected above the safe limits established by the World Health Organization. Histopathological alterations in the liver and spleen were also significantly more frequent in fish from the Paraopeba River than in those from the Abaeté River (P < 0.05). Significant differences in the expressions of environmental biomarkers were observed between the rivers. Fish from the Abaeté River presented significantly higher values of the gonadosomatic index (GSI) and lower levels of metal contamination in the liver and muscle.
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Affiliation(s)
- Lourenço Almeida Savassi
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Alessandro Loureiro Paschoalini
- Programa de Pós-Graduação em Biologia de Vertebrados, Pontifícia Universidade Católica de Minas Gerais, PUC Minas, Belo Horizonte, Minas Gerais, 30535-610, Brazil
| | - Fabio Pereira Arantes
- Programa de Pós-Graduação em Biologia de Vertebrados, Pontifícia Universidade Católica de Minas Gerais, PUC Minas, Belo Horizonte, Minas Gerais, 30535-610, Brazil
| | - Elizete Rizzo
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Nilo Bazzoli
- Programa de Pós-Graduação em Biologia de Vertebrados, Pontifícia Universidade Católica de Minas Gerais, PUC Minas, Belo Horizonte, Minas Gerais, 30535-610, Brazil.
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237
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Hamann A, Kozisek T, Broad K, Pannier AK. Glucocorticoid Priming of Nonviral Gene Delivery to hMSCs Increases Transfection by Reducing Induced Stresses. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2020; 18:713-722. [PMID: 32913879 PMCID: PMC7452153 DOI: 10.1016/j.omtm.2020.07.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 07/17/2020] [Indexed: 12/12/2022]
Abstract
Human mesenchymal stem cells (hMSCs) are under study for cell and gene therapeutics because of their immunomodulatory and regenerative properties. Safe and efficient gene delivery could increase hMSC clinical potential by enabling expression of transgenes for control over factor production, behavior, and differentiation. Viral delivery is efficient but suffers from safety issues, while nonviral methods are safe but highly inefficient, especially in hMSCs. We previously demonstrated that priming cells with glucocorticoids (Gcs) before delivery of DNA complexes significantly increases hMSC transfection, which correlates with a rescue of transfection-induced metabolic and protein synthesis decline, and apoptosis. In this work, we show that transgene expression enhancement is mediated by transcriptional activation of endogenous hMSC genes by the cytosolic glucocorticoid receptor (cGR) and that transfection enhancement can be potentiated with a GR transcription-activation synergist. We demonstrate that the Gc-activated cGR modulates endogenous hMSC gene expression to ameliorate transfection-induced endoplasmic reticulum (ER) and oxidative stresses, apoptosis, and inflammatory responses to prevent hMSC metabolic and protein synthesis decline, resulting in enhanced transgene expression after nonviral gene delivery to hMSCs. These results provide insights important for rational design of more efficient nonviral gene delivery and priming techniques that could be utilized for clinical hMSC applications.
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Affiliation(s)
- Andrew Hamann
- Department of Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE 68583-0726, USA
| | - Tyler Kozisek
- Department of Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE 68583-0726, USA
| | - Kelly Broad
- Department of Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE 68583-0726, USA
| | - Angela K Pannier
- Department of Biological Systems Engineering, University of Nebraska-Lincoln, Lincoln, NE 68583-0726, USA
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238
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Colicino E, Marioni R, Ward-Caviness C, Gondalia R, Guan W, Chen B, Tsai PC, Huan T, Xu G, Golareh A, Schwartz J, Vokonas P, Just A, Starr JM, McRae AF, Wray NR, Visscher PM, Bressler J, Zhang W, Tanaka T, Moore AZ, Pilling LC, Zhang G, Stewart JD, Li Y, Hou L, Castillo-Fernandez J, Spector T, Kiel DP, Murabito JM, Liu C, Mendelson M, Assimes T, Absher D, Tsaho PS, Lu AT, Ferrucci L, Wilson R, Waldenberger M, Prokisch H, Bandinelli S, Bell JT, Levy D, Deary IJ, Horvath S, Pankow J, Peters A, Whitsel EA, Baccarelli A. Blood DNA methylation sites predict death risk in a longitudinal study of 12, 300 individuals. Aging (Albany NY) 2020; 12:14092-14124. [PMID: 32697766 PMCID: PMC7425458 DOI: 10.18632/aging.103408] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 05/25/2020] [Indexed: 12/22/2022]
Abstract
DNA methylation has fundamental roles in gene programming and aging that may help predict mortality. However, no large-scale study has investigated whether site-specific DNA methylation predicts all-cause mortality. We used the Illumina-HumanMethylation450-BeadChip to identify blood DNA methylation sites associated with all-cause mortality for 12, 300 participants in 12 Cohorts of the Heart and Aging Research in Genetic Epidemiology (CHARGE) Consortium. Over an average 10-year follow-up, there were 2,561 deaths across the cohorts. Nine sites mapping to three intergenic and six gene-specific regions were associated with mortality (P < 9.3x10-7) independently of age and other mortality predictors. Six sites (cg14866069, cg23666362, cg20045320, cg07839457, cg07677157, cg09615688)—mapping respectively to BMPR1B, MIR1973, IFITM3, NLRC5, and two intergenic regions—were associated with reduced mortality risk. The remaining three sites (cg17086398, cg12619262, cg18424841)—mapping respectively to SERINC2, CHST12, and an intergenic region—were associated with increased mortality risk. DNA methylation at each site predicted 5%–15% of all deaths. We also assessed the causal association of those sites to age-related chronic diseases by using Mendelian randomization, identifying weak causal relationship between cg18424841 and cg09615688 with coronary heart disease. Of the nine sites, three (cg20045320, cg07839457, cg07677157) were associated with lower incidence of heart disease risk and two (cg20045320, cg07839457) with smoking and inflammation in prior CHARGE analyses. Methylation of cg20045320, cg07839457, and cg17086398 was associated with decreased expression of nearby genes (IFITM3, IRF, NLRC5, MT1, MT2, MARCKSL1) linked to immune responses and cardiometabolic diseases. These sites may serve as useful clinical tools for mortality risk assessment and preventative care.
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Affiliation(s)
- Elena Colicino
- Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Riccardo Marioni
- Centre for Genomic and Experimental Medicine, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh EH4 2XU, UK
| | - Cavin Ward-Caviness
- US Environmental Protection Agency, Chapel Hill, NC 27514, USA.,Institute for Epidemiology II, Helmholtz Zentrum Munich, German Research Center for Environmental Health, Neuherberg D-85764, Germany
| | - Rahul Gondalia
- Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC 27514, USA
| | - Weihua Guan
- Division of Biostatistics, School of Public Health, University of Minnesota, Minneapolis, MN 55455, USA
| | - Brian Chen
- Longitudinal Study Section, Translational Gerontology Branch, National Institute of Aging, Bethesda, MD 20892, USA
| | - Pei-Chien Tsai
- Department of Twin Research and Genetic Epidemiology, King's College London, London SE1 7EH, UK
| | - Tianxiao Huan
- National Heart, Lung, and Blood Institute, Bethesda, MD 20892, USA
| | - Gao Xu
- Columbia University Mailman School of Public Health, New York, NY 10032, USA
| | - Agha Golareh
- Columbia University Mailman School of Public Health, New York, NY 10032, USA
| | - Joel Schwartz
- Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Pantel Vokonas
- VA Boston Healthcare System and Boston University Schools of Public Health and Medicine, Boston, MA 02115, USA
| | - Allan Just
- Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - John M Starr
- Alzheimer Scotland Dementia Research Centre, University of Edinburgh, Edinburgh EH8 9JZ, UK
| | - Allan F McRae
- Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD, Australia
| | - Naomi R Wray
- Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD, Australia
| | - Peter M Visscher
- Institute for Molecular Bioscience, University of Queensland, Brisbane, QLD, Australia
| | - Jan Bressler
- University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Wen Zhang
- Department of Biostatistics and Data Science, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Toshiko Tanaka
- Longitudinal Study Section, Translational Gerontology Branch, National Institute of Aging, Bethesda, MD 20892, USA
| | - Ann Zenobia Moore
- Longitudinal Study Section, Translational Gerontology Branch, National Institute of Aging, Bethesda, MD 20892, USA
| | - Luke C Pilling
- Epidemiology and Public Health Group, University of Exeter Medical School, Exeter, UK
| | - Guosheng Zhang
- Department of Genetics, University of North Carolina, Chapel Hill, NC 27514, USA
| | - James D Stewart
- Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC 27514, USA
| | - Yun Li
- Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC 27514, USA
| | - Lifang Hou
- Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Juan Castillo-Fernandez
- Department of Twin Research and Genetic Epidemiology, King's College London, London SE1 7EH, UK
| | - Tim Spector
- Department of Twin Research and Genetic Epidemiology, King's College London, London SE1 7EH, UK
| | - Douglas P Kiel
- Hebrew SeniorLife Institute for Aging Research and Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School Boston, MA 02215, USA
| | - Joanne M Murabito
- Section General Internal Medicine, Department of Medicine, Boston University School of Medicine, Boston, MA 02215, USA
| | - Chunyu Liu
- Boston University School of Public Health, Boston, MA 02215, USA
| | - Mike Mendelson
- Boston University School of Medicine, Boston, MA 02215, USA
| | - Tim Assimes
- Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Devin Absher
- Hudson Alpha Institute for Biotechnology, Huntsville, AL 35806, USA
| | - Phil S Tsaho
- Department of Human Genetics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Ake T Lu
- Department of Human Genetics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
| | | | - Rory Wilson
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum Munich, German Research Center for Environmental Health, Neuherberg D-85764, Germany
| | - Melanie Waldenberger
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum Munich, German Research Center for Environmental Health, Neuherberg D-85764, Germany
| | - Holger Prokisch
- Institute of Human Genetics, Helmholtz Zentrum Munich, German Research Center for Environmental Health, Neuherberg S-85764, Germany
| | | | - Jordana T Bell
- Department of Twin Research and Genetic Epidemiology, King's College London, London SE1 7EH, UK
| | - Daniel Levy
- Framingham Heart Study, Framingham, MA 01702, USA
| | - Ian J Deary
- Department of Psychology, University of Edinburgh, Edinburgh EH8 9JZ, UK
| | - Steve Horvath
- Department of Human Genetics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Jim Pankow
- Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN 55455, USA
| | - Annette Peters
- Institute for Epidemiology II, Helmholtz Zentrum Munich, German Research Center for Environmental Health, Neuherberg D-85764, Germany
| | - Eric A Whitsel
- Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC 27514, USA
| | - Andrea Baccarelli
- Columbia University Mailman School of Public Health, New York, NY 10032, USA
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239
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Loxham M, Woo J, Singhania A, Smithers NP, Yeomans A, Packham G, Crainic AM, Cook RB, Cassee FR, Woelk CH, Davies DE. Upregulation of epithelial metallothioneins by metal-rich ultrafine particulate matter from an underground railway. Metallomics 2020; 12:1070-1082. [PMID: 32297622 DOI: 10.1039/d0mt00014k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Airborne particulate matter (PM) is a leading cause of mortality and morbidity. However, understanding of the range and mechanisms of effects of PM components is poor. PM generated in underground railways is rich in metals, especially iron. In the ultrafine (UFPM; <0.1 μm diameter) fraction, the combination of small size and metal enrichment poses an unknown health risk. This study aimed to analyse transcriptomic responses to underground UFPM in primary bronchial epithelial cells (PBECs), a key site of PM deposition. The oxidation state of iron in UFPM from an underground station was determined by X-ray absorption near edge structure (XANES) spectroscopy. Antioxidant response was assayed using a reporter cell line transfected with an antioxidant response element (ARE)-luciferase construct. Differentiated PBECs were exposed to UFPM for 6 h or 24 h for RNA-Seq and RT-qPCR analysis. XANES showed predominance of redox-active Fe3O4, with ROS generation confirmed by induction of ARE-luciferase expression. 6 h exposure of PBECs to UFPM identified 52 differentially expressed genes (DEGs), especially associated with epithelial maintenance, whereas 24 h exposure yielded 23 DEGs, particularly involved with redox homeostasis and metal binding. At both timepoints, there was upregulation of members of the metallothionein family, low molecular weight proteins with antioxidant activity whose main function is binding and homeostasis of zinc and copper ions, but not iron ions. This upregulation was partially inhibited by metal chelation or ROS scavenging. These data suggest differential regulation of responses to metal-rich UFPM depending on exposure period, and highlight novel pathways and markers of PM exposure, with the role of metallothioneins warranting further investigation.
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Affiliation(s)
- Matthew Loxham
- School of Clinical and Experimental Sciences, University of Southampton Faculty of Medicine, University Hospital Southampton, Tremona Road, Southampton, UKSO16 6YD. and NIHR Southampton Biomedical Research Centre, University Hospital Southampton, Tremona Road, Southampton, UKSO16 6YD and Institute for Life Sciences, Highfield Campus, University of Southampton, Southampton, UKSO17 1BJ and Southampton Marine and Maritime Institute, University of Southampton, Boldrewood Innovation Campus, Southampton, UKSO16 7QF
| | - Jeongmin Woo
- School of Clinical and Experimental Sciences, University of Southampton Faculty of Medicine, University Hospital Southampton, Tremona Road, Southampton, UKSO16 6YD.
| | - Akul Singhania
- School of Clinical and Experimental Sciences, University of Southampton Faculty of Medicine, University Hospital Southampton, Tremona Road, Southampton, UKSO16 6YD.
| | - Natalie P Smithers
- School of Clinical and Experimental Sciences, University of Southampton Faculty of Medicine, University Hospital Southampton, Tremona Road, Southampton, UKSO16 6YD.
| | - Alison Yeomans
- Cancer Research UK Centre, Cancer Sciences, University of Southampton Faculty of Medicine, University Hospital Southampton, Southampton, UKSO16 6YD
| | - Graham Packham
- Cancer Research UK Centre, Cancer Sciences, University of Southampton Faculty of Medicine, University Hospital Southampton, Southampton, UKSO16 6YD
| | - Alina M Crainic
- National Centre for Advanced Tribology (nCATS), Mechanical Engineering, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, UKSO17 1BJ
| | - Richard B Cook
- National Centre for Advanced Tribology (nCATS), Mechanical Engineering, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, UKSO17 1BJ
| | - Flemming R Cassee
- Centre for Sustainability, Environment, and Health, National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands and Institute for Risk Assessment Sciences (IRAS), Utrecht University, Utrecht, The Netherlands
| | - Christopher H Woelk
- School of Clinical and Experimental Sciences, University of Southampton Faculty of Medicine, University Hospital Southampton, Tremona Road, Southampton, UKSO16 6YD.
| | - Donna E Davies
- School of Clinical and Experimental Sciences, University of Southampton Faculty of Medicine, University Hospital Southampton, Tremona Road, Southampton, UKSO16 6YD. and NIHR Southampton Biomedical Research Centre, University Hospital Southampton, Tremona Road, Southampton, UKSO16 6YD and Institute for Life Sciences, Highfield Campus, University of Southampton, Southampton, UKSO17 1BJ
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240
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Habjanič J, Mathew A, Eberl L, Freisinger E. Deciphering the Enigmatic Function of Pseudomonas Metallothioneins. Front Microbiol 2020; 11:1709. [PMID: 32793167 PMCID: PMC7387436 DOI: 10.3389/fmicb.2020.01709] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 06/29/2020] [Indexed: 11/20/2022] Open
Abstract
Metallothioneins (MTs) are low molecular weight, Cys-rich proteins that sequester both essential and non-essential metal ions. Despite being highly conserved in the Pseudomonas genus of Gram-negative bacteria, knowledge of their physiological function in this species is scarce. Using the strain P. fluorescens Q2-87 as a model organism, we investigated the role of a conserved MT in zinc homeostasis, cadmium detoxification as well as its implications in stress response. We show that MT expression is only induced in the stationary phase and provides a fitness benefit for long-term starvation survival, while it is not required for metal resistance and acquisition, oxidative or nitrosative stress response, biofilm formation or motility.
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Affiliation(s)
- Jelena Habjanič
- Department of Chemistry, University of Zurich, Zurich, Switzerland
| | - Anugraha Mathew
- Department of Plant and Microbial Biology, University of Zurich, Zurich, Switzerland
| | - Leo Eberl
- Department of Plant and Microbial Biology, University of Zurich, Zurich, Switzerland
| | - Eva Freisinger
- Department of Chemistry, University of Zurich, Zurich, Switzerland
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241
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Sanpradit P, Buapet P, Kongseng S, Peerakietkhajorn S. Temperature and concentration of ZnO particles affect life history traits and oxidative stress in Daphnia magna. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 224:105517. [PMID: 32485496 DOI: 10.1016/j.aquatox.2020.105517] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 04/22/2020] [Accepted: 05/07/2020] [Indexed: 06/11/2023]
Abstract
Temperature affects physiological processes in organisms and the toxicity of chemicals. The widespread industrial use of ZnO causes contamination in aquatic ecosystems. This study aimed to investigate the chronic toxicity of ZnO at different temperatures using Daphnia magna as a model organism. The chronic toxicity of five different concentrations of ZnO was assessed at 23 °C and 28 °C. The results showed that higher concentrations of ZnO inhibited growth, production of first clutch eggs and juvenile accumulation at both 23 °C and 28 °C. Growth rate, numbers of first clutch eggs and juvenile accumulation were lower at 28 °C than at 23 °C. We also observed the levels of malondialdehyde (MDA) and superoxide dismutase (SOD) activity. At higher concentrations of ZnO, oxidative stress was induced leading to increase MDA level and decrease SOD activity at 28 °C. These findings indicated that high temperature and high concentration of ZnO inhibited the activity of enzymatic proteins. Nonetheless, among all treatments, the accumulation of zinc in D. magna was not significantly different. Our results suggested that both ZnO and higher temperature induced oxidative stress in D. magna. As a result, MDA concentration increased, SOD activity changed and the growth and reproduction of D. magna was adversely affected.
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Affiliation(s)
- Paweena Sanpradit
- Department of Biology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand; Gut Biology and Microbiota Research Unit, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Pimchanok Buapet
- Department of Biology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand; Coastal Oceanography and Climate Change Research Center, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Supunsa Kongseng
- Department of Pharmacology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Saranya Peerakietkhajorn
- Department of Biology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand; Gut Biology and Microbiota Research Unit, Prince of Songkla University, Hat Yai, Songkhla, Thailand.
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242
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Baranowska M, Suliborska K, Todorovic V, Kusznierewicz B, Chrzanowski W, Sobajic S, Bartoszek A. Interactions between bioactive components determine antioxidant, cytotoxic and nutrigenomic activity of cocoa powder extract. Free Radic Biol Med 2020; 154:48-61. [PMID: 32360591 DOI: 10.1016/j.freeradbiomed.2020.04.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 04/23/2020] [Accepted: 04/23/2020] [Indexed: 12/25/2022]
Abstract
Numerous studies have shown, rather disappointingly, that isolated bioactive phytochemicals are not as biologically effective as natural plant products. Such a discrepancy may be explained by the concept of food synergy, which was verified in this research for cocoa extract versus its major components with regard to cancer chemoprevention. The evaluation embraced the relationship between redox properties evaluated in cell-free systems with the aid of free radicals scavenging method and differential pulse voltammetry, and redox associated anticarcinogenic activities (cellular antioxidant activity, cytotoxicity, nutrigenomic activity) in human colon adenocarcinoma cell line exposed to either cocoa powder extract or artificial mixtures of cocoa bioactives at matching concentrations. In contrast to expectations, our results showed that the stepwise enrichment with antioxidants caused no gradual increase in the antioxidant activity of the model mixtures; also, these model mixtures did not reach the reducing potential of cocoa in the cell-free systems or cellular model employed. Further, the biological activities examined in colon adenocarcinoma cells did not alter in a stepwise manner that could reflect the gradual changes in composition of bioactive ingredients. In conclusion, the experiments presented here showed that the growing complexity of a mixture of phytochemicals seems to create a new redox bioactive substance rather than enrich the mixture with new activities, characteristic of the compound added. It follows that no simple, predictable relationship can be expected between the chemopreventive potential and the composition of real food items containing a complicated set of non-toxic redox active ingredients. Our observations suggest that the interactions between different bioactive compounds and food matrix components are cooperating factors determining the final bioactivity of foods.
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Affiliation(s)
- Monika Baranowska
- Department of Food Chemistry, Technology and Biotechnology, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland.
| | - Klaudia Suliborska
- Department of Physical Chemistry, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland
| | - Vanja Todorovic
- Department of Bromatology, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Barbara Kusznierewicz
- Department of Food Chemistry, Technology and Biotechnology, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland
| | - Wojciech Chrzanowski
- Department of Physical Chemistry, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland
| | - Sladjana Sobajic
- Department of Bromatology, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Agnieszka Bartoszek
- Department of Food Chemistry, Technology and Biotechnology, Faculty of Chemistry, Gdansk University of Technology, Gdansk, Poland
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243
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Duarte LFDA, Blasco J, Catharino MGM, Moreira EG, Trombini C, Nobre CR, Moreno BB, Abessa DMDS, Pereira CDS. Lead toxicity on a sentinel species subpopulation inhabiting mangroves with different status conservation. CHEMOSPHERE 2020; 251:126394. [PMID: 32155497 DOI: 10.1016/j.chemosphere.2020.126394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 02/27/2020] [Accepted: 02/28/2020] [Indexed: 06/10/2023]
Abstract
Lead is a priority pollutant introduced in the aquatic environment by different sources commonly located in estuarine regions, such as ports, marinas and industries. Environmental agencies around the world set the maximum allowable concentration of lead in effluents, surface water and sediment, but few studies reported its accumulation and chronic toxicity in mangrove benthic invertebrates using concentrations believed to be safe. In the case of Brazilian mangrove environments, Ucides cordatus is a crab species of choice to be used in bioaccumulation studies. We have assessed biomarkers' responses (DNA strand breaks, micronucleated cells, metallothioneins, enzymatic activity of aminolevulinic acid dehydratase and neutral red retention time) and the total bioaccumulation in six tissues of U. cordatus crabs resident to mangrove areas under different conservation status during a 28-day period bioassay. We also investigated Pb subcellular partition and biomarkers' responses using a supposedly safe concentration (10 μg L-1). During the Pb exposure, the highest concentration of Pb was observed in crab gills. Crabs also showed a high ability to allocate Pb in detoxified forms. Multivariate analysis pointed out that bioaccumulation (total, active and detoxified) is linked to biomarkers. Even in supposedly safe dosage, U. cordatus triggered its defense mechanisms expressing more metallothioneins and presented relevant cyto-genotoxic damage. Our data suggest the development of biological tolerance to Pb in crabs from polluted areas. Our results provided a new insight about lead toxicity even at concentrations considered environmentally safe, which could support new strategies to manage estuarine areas considering their respective conservation status.
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Affiliation(s)
- Luis Felipe de Almeida Duarte
- Universidade Federal de São Paulo, Departamento de Ciências do Mar, Campus Baixada Santista, Rua Maria Máximo, 168, Ponta da Praia, Santos, SP, 11030-100, Brazil.
| | - Julián Blasco
- Instituto de Ciencias Marinas de Andalucía (ICMAN), Campus Río San Pedro, s/n, Puerto Real, Cádiz, Spain.
| | - Marília Gabriela Miranda Catharino
- Instituto de Pesquisas Energéticas e Nucleares (IPEN - CNEN/SP), Av. Professor Lineu Prestes, 2242, Cidade Universitária, 05508-000, São Paulo, SP, Brazil.
| | - Edson Gonçalves Moreira
- Instituto de Pesquisas Energéticas e Nucleares (IPEN - CNEN/SP), Av. Professor Lineu Prestes, 2242, Cidade Universitária, 05508-000, São Paulo, SP, Brazil.
| | - Chiara Trombini
- Instituto de Ciencias Marinas de Andalucía (ICMAN), Campus Río San Pedro, s/n, Puerto Real, Cádiz, Spain.
| | - Caio Rodrigues Nobre
- Universidade Federal de São Paulo, Departamento de Ciências do Mar, Campus Baixada Santista, Rua Maria Máximo, 168, Ponta da Praia, Santos, SP, 11030-100, Brazil.
| | - Beatriz Barbosa Moreno
- Universidade Federal de São Paulo, Departamento de Ciências do Mar, Campus Baixada Santista, Rua Maria Máximo, 168, Ponta da Praia, Santos, SP, 11030-100, Brazil.
| | - Denis Moledo de Souza Abessa
- Universidade Estadual de São Paulo - UNESP, Center of Investigation on Aquatic Pollution and Ecotoxicology, Praça Infante Dom Henrique, s/n, 11330-900, São Vicente, SP, Brazil.
| | - Camilo Dias Seabra Pereira
- Universidade Federal de São Paulo, Departamento de Ciências do Mar, Campus Baixada Santista, Rua Maria Máximo, 168, Ponta da Praia, Santos, SP, 11030-100, Brazil; Universidade Santa Cecília, Laboratório de Ecotoxicologia, Rua Oswaldo Cruz, 266, Santos, SP, 11045-907, Brazil.
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244
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Cadmium-Induced Oxidative Stress: Focus on the Central Nervous System. Antioxidants (Basel) 2020; 9:antiox9060492. [PMID: 32516892 PMCID: PMC7346204 DOI: 10.3390/antiox9060492] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/22/2020] [Accepted: 06/02/2020] [Indexed: 12/18/2022] Open
Abstract
Cadmium (Cd), a category I human carcinogen, is a well-known widespread environmental pollutant. Chronic Cd exposure affects different organs and tissues, such as the central nervous system (CNS), and its deleterious effects can be linked to indirect reactive oxygen species (ROS) generation. Since Cd is predominantly present in +2 oxidation state, it can interplay with a plethora of channels and transporters in the cell membrane surface in order to enter the cells. Mitochondrial dysfunction, ROS production, glutathione depletion and lipid peroxidation are reviewed in order to better characterize the Cd-elicited molecular pathways. Furthermore, Cd effects on different CNS cell types have been highlighted to better elucidate its role in neurodegenerative disorders. Indeed, Cd can increase blood-brain barrier (BBB) permeability and promotes Cd entry that, in turn, stimulates pericytes in maintaining the BBB open. Once inside the CNS, Cd acts on glial cells (astrocytes, microglia, oligodendrocytes) triggering a pro-inflammatory cascade that accounts for the Cd deleterious effects and neurons inducing the destruction of synaptic branches.
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245
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Kimura K, Nakano Y, Sugizaki T, Shimoda M, Kobayashi N, Kawahara M, Tanaka KI. Protective effect of polaprezinc on cadmium-induced injury of lung epithelium. Metallomics 2020; 11:1310-1320. [PMID: 31236550 DOI: 10.1039/c9mt00060g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Cadmium is a toxic metal contained in food, water and the atmosphere, and exposure to cadmium can cause respiratory diseases in humans. Various health problems caused by cadmium result from oxidative stress-dependent cellular injury. Metallothioneins are intracellular, cysteine-rich, metal-binding proteins that have a detoxifying action on heavy metals such as cadmium in various organs. In addition, expression of metallothioneins is induced by metals with low biological toxicity, such as zinc. Therefore, in this study we examined whether polaprezinc, a chelate compound consisting of carnosine and zinc, can suppress cadmium-induced lung epithelial cell death. We found that cell viability markers (intracellular ATP levels and mitochondrial activity) and cytotoxicity (lactate dehydrogenase release) were decreased and increased, respectively by cadmium treatment; however, polaprezinc significantly reversed these changes. Moreover, cadmium-dependent endoplasmic reticulum stress responses were suppressed by polaprezinc treatment. We then examined the protective mechanisms of polaprezinc, focusing on oxidative stress. Cadmium induced the production of reactive oxygen species (ROS) in A549 cells in a dose-dependent manner and polaprezinc significantly suppressed this cadmium-induced ROS production. Finally, we examined whether polaprezinc exerts an antioxidative action by inducing metallothioneins. We found that polaprezinc dose-dependently induced metallothioneins using real-time RT-PCR, ELISA, and western blotting analyses. These results indicate that polaprezinc can suppress cadmium-induced lung epithelial cell death and oxidative stress by inducing metallothioneins. We therefore suggest that polaprezinc may have therapeutic effects against respiratory diseases, such as chronic obstructive pulmonary disease and idiopathic pulmonary fibrosis.
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Affiliation(s)
- Kazuma Kimura
- Department of Bio-Analytical Chemistry, Research Institute of Pharmaceutical Sciences, Faculty of Pharmacy, Musashino University, 1-1-20 Shinmachi, Nishitokyo-shi, Tokyo 202-8585, Japan.
| | - Yukari Nakano
- Department of Bio-Analytical Chemistry, Research Institute of Pharmaceutical Sciences, Faculty of Pharmacy, Musashino University, 1-1-20 Shinmachi, Nishitokyo-shi, Tokyo 202-8585, Japan.
| | - Toshifumi Sugizaki
- Department of Bio-Analytical Chemistry, Research Institute of Pharmaceutical Sciences, Faculty of Pharmacy, Musashino University, 1-1-20 Shinmachi, Nishitokyo-shi, Tokyo 202-8585, Japan.
| | - Mikako Shimoda
- Department of Bio-Analytical Chemistry, Research Institute of Pharmaceutical Sciences, Faculty of Pharmacy, Musashino University, 1-1-20 Shinmachi, Nishitokyo-shi, Tokyo 202-8585, Japan.
| | - Nahoko Kobayashi
- Department of Bio-Analytical Chemistry, Research Institute of Pharmaceutical Sciences, Faculty of Pharmacy, Musashino University, 1-1-20 Shinmachi, Nishitokyo-shi, Tokyo 202-8585, Japan.
| | - Masahiro Kawahara
- Department of Bio-Analytical Chemistry, Research Institute of Pharmaceutical Sciences, Faculty of Pharmacy, Musashino University, 1-1-20 Shinmachi, Nishitokyo-shi, Tokyo 202-8585, Japan.
| | - Ken-Ichiro Tanaka
- Department of Bio-Analytical Chemistry, Research Institute of Pharmaceutical Sciences, Faculty of Pharmacy, Musashino University, 1-1-20 Shinmachi, Nishitokyo-shi, Tokyo 202-8585, Japan.
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246
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Respiratory Syncytial Virus-Induced Oxidative Stress Leads to an Increase in Labile Zinc Pools in Lung Epithelial Cells. mSphere 2020; 5:5/3/e00447-20. [PMID: 32461278 PMCID: PMC7253603 DOI: 10.1128/msphere.00447-20] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Zinc supplementation in cell culture has been shown to inhibit various viruses, like herpes simplex virus, rotavirus, severe acute respiratory syndrome (SARS) coronavirus, rhinovirus, and respiratory syncytial virus (RSV). However, whether zinc plays a direct antiviral role in viral infections and whether viruses have adopted strategies to modulate zinc homeostasis have not been investigated. Results from clinical trials of zinc supplementation in infections indicate that zinc supplementation may be beneficial in a pathogen- or disease-specific manner, further underscoring the importance of understanding the interaction between zinc homeostasis and virus infections at the molecular level. We investigated the effect of RSV infection on zinc homeostasis and show that RSV infection in lung epithelial cells leads to modulation of zinc homeostasis. The intracellular labile zinc pool increases upon RSV infection in a multiplicity of infection (MOI)-dependent fashion. Small interfering RNA (siRNA)-mediated knockdown of the ubiquitous zinc uptake transporter ZIP1 suggests that labile zinc levels are increased due to the increased uptake by RSV-infected cells as an antiviral response. Adding zinc to culture medium after RSV infection led to significant inhibition of RSV titers, whereas depletion of zinc by a zinc chelator, N,N,N',N'-tetrakis(2-pyridinylmethyl)-1,2-ethanediamine (TPEN) led to an increase in RSV titers. The inhibitory effect of zinc was specific, as other divalent cations had no effect on RSV titers. Both RSV infection and zinc chelation by TPEN led to reactive oxygen species (ROS) induction, whereas addition of zinc blocked ROS induction. These results suggest a molecular link between RSV infection, zinc homeostasis, and oxidative-stress pathways and provide new insights for developing strategies to counter RSV infection.IMPORTANCE Zinc deficiency rates in developing countries range from 20 to 30%, and zinc supplementation trials have been shown to correct clinical manifestations attributed to zinc deficiency, but the outcomes in the case of respiratory infections have been inconsistent. We aimed at understanding the role of zinc homeostasis in respiratory syncytial virus (RSV) infection. Infection of lung epithelial cell lines or primary small-airway epithelial cells led to an increase in labile zinc pools, which was due to increased uptake of zinc. Zinc supplementation inhibited RSV replication, whereas zinc chelation had an opposing effect, leading to increases in RSV titers. Increases in labile zinc in RSV-infected cells coincided with induction of reactive oxygen species (ROS). Both zinc depletion and addition of exogenous ROS led to enhanced RSV infection, whereas addition of the antioxidant inhibited RSV, suggesting that zinc is part of an interplay between RSV-induced oxidative stress and the host response to maintain redox balance.
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247
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Concentration-dependent toxicogenomic changes of silver nanoparticles in hepatocyte-like cells derived from human induced pluripotent stem cells. Cell Biol Toxicol 2020; 37:245-259. [PMID: 32447489 DOI: 10.1007/s10565-020-09529-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 04/28/2020] [Indexed: 02/06/2023]
Abstract
The application of silver nanoparticles (AgNPs) in consumer products has been increasing rapidly over the past decades. Therefore, in vitro models capable of accurately predicting the toxicity of AgNPs are much needed. Hepatocyte-like cells (HLCs) derived from human induced pluripotent stem cells (iPSCs) represent an attractive alternative in vitro hepatotoxicity model. Yet, the use of iPSC-derived HLCs (iPSC-HLCs) for the study of nanoparticle toxicity has not been reported so far. In the present study, transcriptomic changes induced by varying concentrations (5-25 μg/ml) of AgNPs were characterized in iPSC-HLCs after 24-h exposure. AgNPs caused concentration-dependent gene expression changes in iPSC-HLCs. At all the concentrations, members of the metallothionein (MT) and the heat shock protein (HSP) families were the dominating upregulated genes, suggesting that exposure to AgNPs induced oxidative stresses in iPSC-HLCs and as a result elicited cellular protective responses in the cells. Functional analysis showed that the differentially expressed genes (DEGs) were majorly involved in the biological processes of metabolism, response to stress, and cell organization and biogenesis. Ingenuity Pathway Analysis revealed that cancer was at the top of diseases and disorders associated with the DEGs at all concentrations. These results were in accordance with those reported previously on hepatoma cell lines and primary hepatocytes. Considering the advantages iPSC-HLCs have over other liver cell models in terms of unlimited supply, consistency in quality, sustainability of function in long-term culture, and, more importantly, affordability of donor specificity, the results of the current study suggest that iPSC-HLCs may serve as a better in vitro model for liver nanotoxicology.
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248
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Riedelberger M, Penninger P, Tscherner M, Hadriga B, Brunnhofer C, Jenull S, Stoiber A, Bourgeois C, Petryshyn A, Glaser W, Limbeck A, Lynes MA, Schabbauer G, Weiss G, Kuchler K. Type I Interferons Ameliorate Zinc Intoxication of Candida glabrata by Macrophages and Promote Fungal Immune Evasion. iScience 2020; 23:101121. [PMID: 32428860 PMCID: PMC7232100 DOI: 10.1016/j.isci.2020.101121] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 04/09/2020] [Accepted: 04/29/2020] [Indexed: 12/16/2022] Open
Abstract
Host and fungal pathogens compete for metal ion acquisition during infectious processes, but molecular mechanisms remain largely unknown. Here, we show that type I interferons (IFNs-I) dysregulate zinc homeostasis in macrophages, which employ metallothionein-mediated zinc intoxication of pathogens as fungicidal response. However, Candida glabrata can escape immune surveillance by sequestering zinc into vacuoles. Interestingly, zinc-loading is inhibited by IFNs-I, because a Janus kinase 1 (JAK1)-dependent suppression of zinc homeostasis affects zinc distribution in macrophages as well as generation of reactive oxygen species (ROS). In addition, systemic fungal infections elicit IFN-I responses that suppress splenic zinc homeostasis, thereby altering macrophage zinc pools that otherwise exert fungicidal actions. Thus, IFN-I signaling inadvertently increases fungal fitness both in vitro and in vivo during fungal infections. Our data reveal an as yet unrecognized role for zinc intoxication in antifungal immunity and suggest that interfering with host zinc homeostasis may offer therapeutic options to treat invasive fungal infections.
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Affiliation(s)
- Michael Riedelberger
- Medical University of Vienna, Center for Medical Biochemistry, Max Perutz Labs Vienna, Campus Vienna Biocenter, Vienna, Austria
| | - Philipp Penninger
- Medical University of Vienna, Center for Medical Biochemistry, Max Perutz Labs Vienna, Campus Vienna Biocenter, Vienna, Austria
| | - Michael Tscherner
- Medical University of Vienna, Center for Medical Biochemistry, Max Perutz Labs Vienna, Campus Vienna Biocenter, Vienna, Austria
| | - Bernhard Hadriga
- Medical University of Vienna, Center for Medical Biochemistry, Max Perutz Labs Vienna, Campus Vienna Biocenter, Vienna, Austria
| | - Carina Brunnhofer
- Institute of Chemical Technologies and Analytics, TU Wien, Vienna, Austria
| | - Sabrina Jenull
- Medical University of Vienna, Center for Medical Biochemistry, Max Perutz Labs Vienna, Campus Vienna Biocenter, Vienna, Austria
| | - Anton Stoiber
- Medical University of Vienna, Center for Medical Biochemistry, Max Perutz Labs Vienna, Campus Vienna Biocenter, Vienna, Austria
| | - Christelle Bourgeois
- Medical University of Vienna, Center for Medical Biochemistry, Max Perutz Labs Vienna, Campus Vienna Biocenter, Vienna, Austria
| | - Andriy Petryshyn
- Medical University of Vienna, Center for Medical Biochemistry, Max Perutz Labs Vienna, Campus Vienna Biocenter, Vienna, Austria
| | - Walter Glaser
- Medical University of Vienna, Center for Medical Biochemistry, Max Perutz Labs Vienna, Campus Vienna Biocenter, Vienna, Austria
| | - Andreas Limbeck
- Institute of Chemical Technologies and Analytics, TU Wien, Vienna, Austria
| | - Michael A Lynes
- Department of Molecular and Cell Biology, University of Connecticut, CT, USA
| | - Gernot Schabbauer
- Institute for Vascular Biology and Thrombosis Research, Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria; Christian Doppler Laboratory for Arginine Metabolism in Rheumatoid Arthritis and Multiple Sclerosis, Vienna, Austria
| | - Guenter Weiss
- Department of Internal Medicine II, Infectious Diseases, Immunology, Rheumatology, and Pneumology, Medical University of Innsbruck, Innsbruck, Austria
| | - Karl Kuchler
- Medical University of Vienna, Center for Medical Biochemistry, Max Perutz Labs Vienna, Campus Vienna Biocenter, Vienna, Austria.
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Ducat A, Couderc B, Bouter A, Biquard L, Aouache R, Passet B, Doridot L, Cohen MB, Ribaux P, Apicella C, Gaillard I, Palfray S, Chen Y, Vargas A, Julé A, Frelin L, Cocquet J, San Martin CR, Jacques S, Busato F, Tost J, Méhats C, Laissue P, Vilotte JL, Miralles F, Vaiman D. Molecular Mechanisms of Trophoblast Dysfunction Mediated by Imbalance between STOX1 Isoforms. iScience 2020; 23:101086. [PMID: 32371375 PMCID: PMC7200942 DOI: 10.1016/j.isci.2020.101086] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 03/16/2020] [Accepted: 04/15/2020] [Indexed: 12/16/2022] Open
Abstract
STOX1 is a transcription factor involved in preeclampsia and Alzheimer disease. We show that the knock-down of the gene induces rather mild effect on gene expression in trophoblast cell lines (BeWo). We identified binding sites of STOX1 shared by the two major isoforms, STOX1A and STOX1B. Profiling gene expression of cells overexpressing either STOX1A or STOX1B, we identified genes downregulated by both isoforms, with a STOX1 binding site in their promoters. Among those, STOX1-induced Annexin A1 downregulation led to abolished membrane repair in BeWo cells. By contrast, overexpression of STOX1A or B has opposite effects on trophoblast fusion (acceleration and inhibition, respectively) accompanied by syncytin genes deregulation. Also, STOX1A overexpression led to abnormal regulation of oxidative and nitrosative stress. In sum, our work shows that STOX1 isoform imbalance is a cause of gene expression deregulation in the trophoblast, possibly leading to placental dysfunction and preeclampsia.
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Affiliation(s)
- Aurélien Ducat
- Institut Cochin, U1016, INSERM, UMR 8504 CNRS, Université Paris Descartes, Paris 75014, France
| | - Betty Couderc
- Institut Cochin, U1016, INSERM, UMR 8504 CNRS, Université Paris Descartes, Paris 75014, France
| | - Anthony Bouter
- Institute of Chemistry and Biology of Membranes and Nano-objects, UMR 5248, CNRS, University of Bordeaux, IPB, 33600 Pessac, France
| | - Louise Biquard
- Institut Cochin, U1016, INSERM, UMR 8504 CNRS, Université Paris Descartes, Paris 75014, France
| | - Rajaa Aouache
- Institut Cochin, U1016, INSERM, UMR 8504 CNRS, Université Paris Descartes, Paris 75014, France
| | - Bruno Passet
- Université Paris-Saclay, INRAE, AgroParisTech, UMR1313-GABI, 78350, Jouy-en-Josas, France
| | - Ludivine Doridot
- Institut Cochin, U1016, INSERM, UMR 8504 CNRS, Université Paris Descartes, Paris 75014, France
| | - Marie-Benoîte Cohen
- Department of Gynecology Obstetrics, Faculty of Medicine, University of Geneva, 1205 Geneva, Switzerland
| | - Pascale Ribaux
- Department of Gynecology Obstetrics, Faculty of Medicine, University of Geneva, 1205 Geneva, Switzerland
| | - Clara Apicella
- Institut Cochin, U1016, INSERM, UMR 8504 CNRS, Université Paris Descartes, Paris 75014, France
| | - Irène Gaillard
- Institut Cochin, U1016, INSERM, UMR 8504 CNRS, Université Paris Descartes, Paris 75014, France
| | - Sophia Palfray
- Institut Cochin, U1016, INSERM, UMR 8504 CNRS, Université Paris Descartes, Paris 75014, France
| | - Yulian Chen
- Institut Cochin, U1016, INSERM, UMR 8504 CNRS, Université Paris Descartes, Paris 75014, France
| | - Alexandra Vargas
- Institut Cochin, U1016, INSERM, UMR 8504 CNRS, Université Paris Descartes, Paris 75014, France
| | - Amélie Julé
- Institut Cochin, U1016, INSERM, UMR 8504 CNRS, Université Paris Descartes, Paris 75014, France
| | - Léo Frelin
- Institute of Chemistry and Biology of Membranes and Nano-objects, UMR 5248, CNRS, University of Bordeaux, IPB, 33600 Pessac, France
| | - Julie Cocquet
- Institut Cochin, U1016, INSERM, UMR 8504 CNRS, Université Paris Descartes, Paris 75014, France
| | - Camino Ruano San Martin
- Institut Cochin, U1016, INSERM, UMR 8504 CNRS, Université Paris Descartes, Paris 75014, France
| | - Sébastien Jacques
- Institut Cochin, U1016, INSERM, UMR 8504 CNRS, Université Paris Descartes, Paris 75014, France
| | - Florence Busato
- Laboratory for Epigenetics and Environment, Institut de Biologie François Jacob, Commissariat àl'Energie Atomique, Evry 91057, France
| | - Jorg Tost
- Laboratory for Epigenetics and Environment, Institut de Biologie François Jacob, Commissariat àl'Energie Atomique, Evry 91057, France
| | - Céline Méhats
- Institut Cochin, U1016, INSERM, UMR 8504 CNRS, Université Paris Descartes, Paris 75014, France
| | - Paul Laissue
- Biopas Laboratoires, BIOPAS GROUP, Bogotá, Colombia
| | - Jean-Luc Vilotte
- Université Paris-Saclay, INRAE, AgroParisTech, UMR1313-GABI, 78350, Jouy-en-Josas, France
| | - Francisco Miralles
- Institut Cochin, U1016, INSERM, UMR 8504 CNRS, Université Paris Descartes, Paris 75014, France
| | - Daniel Vaiman
- Institut Cochin, U1016, INSERM, UMR 8504 CNRS, Université Paris Descartes, Paris 75014, France.
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Ooi TC, Chan KM, Sharif R. Protective effects of zinc L-carnosine against hydrogen peroxide-induced DNA damage and micronucleus formation in CCD-18co human colon fibroblast cells. Free Radic Res 2020; 54:330-340. [PMID: 32366187 DOI: 10.1080/10715762.2020.1763333] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Zinc L-carnosine (ZnC) is a chelated compound of zinc and L-carnosine. The present study aims to determine the protective effects of ZnC against hydrogen peroxide (H2O2)-induced oxidative stress and genomic damage in CCD-18co human normal colon fibroblast cells. Generally, cells were pretreated with ZnC (0-100 µM) for 24 h before challenged with 20 µM of H2O2 for 1 h to induce oxidative damage. Results showed that pretreatment with ZnC was able to reduce the intracellular ROS level in CCD-18co cells after being challenged with H2O2. Moreover, pretreatment with ZnC demonstrated protection from H2O2-induced DNA strand breaks and micronucleus formation. Our current findings revealed that pretreatment with ZnC could induce the activation of MTF-1 signaling pathway and expression of metallothionein (MT) in a dose-dependent manner. However, ZnC did not have any effects on Nrf2 signaling pathway and the expression of glutathione, superoxide dismutase 1, and glutamate-cysteine ligase catalytic subunit (GCLC). Furthermore, pretreatment with ZnC did not induce the expression of OGG1 and PARP-1 in CCD-18co cells, suggesting that these two DNA repairing enzymes are not related to the genoprotective effects of ZnC. Since the expression of MT has been demonstrated to protect cells from oxidative DNA damage induced by various genotoxic agents, the genoprotective effects of ZnC might be due to the ability of ZnC to induce the expression of MT. In conclusion, ZnC pretreatment was able to protect CCD-18co cells from H2O2-induced genomic damage via the activation of the MTF-1 signalling pathway and the induction of MT expression.
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Affiliation(s)
- Theng Choon Ooi
- Center for Healthy Ageing and Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Kok Meng Chan
- Environmental Health and Industrial Safety Programme, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Razinah Sharif
- Center for Healthy Ageing and Wellness, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.,Biocompatibility Laboratory, Centre for Research and Instrumentation, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
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