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Abudalo R, Gammoh O, Altaber S, Bseiso Y, Qnais E, Wedyan M, Oqal M, Alqudah A. Mitigation of cisplatin-induced cardiotoxicity by Isorhamnetin: Mechanistic insights into oxidative stress, inflammation, and apoptosis modulation. Toxicol Rep 2024; 12:564-573. [PMID: 38798986 PMCID: PMC11127476 DOI: 10.1016/j.toxrep.2024.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 04/28/2024] [Accepted: 05/08/2024] [Indexed: 05/29/2024] Open
Abstract
The flavonoid compound Isorhamnetin (IRMN) is known for its considerable pharmacological properties, which include antioxidant and anti-inflammatory effects, as well as significant protective actions on heart health. However, the potential of IRMN to guard against heart damage caused by cisplatin (CP), a common chemotherapeutic agent, and the specific mechanisms involved, remain unexplored areas. This research was designed to investigate how IRMN counters CP-induced heart toxicity. In our study, mice were orally given IRMN at 50 or 150 mg/kg/day for a week, followed by CP injections (5 mg/kg/day) on the third and sixth days. The animals were euthanized under sodium pentobarbital anesthesia (50 mg/kg, intraperitoneally) on the eighth day to collect blood and heart tissues for further examination. Our findings reveal that IRMN administration significantly reduced the heart damage and the elevation of heart injury markers such as cardiac troponin I, creatine kinase, and lactate dehydrogenase induced by CP. IRMN also effectively lowered oxidative stress markers, including reactive oxygen species and malondialdehyde, while boosting ATP production and antioxidants like superoxide dismutase, catalase, and glutathione. The compound's capability to diminish the levels of pro-inflammatory cytokines like tumor necrosis factor-alpha and interleukin-6, alongside modulating apoptosis-regulating proteins (enhancing Bcl-2 while suppressing Bax and Caspase-3 expression), further underscores its cardioprotective effect. Notably, IRMN modulated the p62-Keap1-Nrf2 signaling pathway, suggesting a mechanism through which it exerts its protective effects against CP-induced cardiac injury. These insights underscore the potential of IRMN as an effective adjunct in cancer therapy, offering a strategy to mitigate the cardiotoxic side effects of cisplatin.
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Affiliation(s)
- Rawan Abudalo
- Department of Clinical Pharmacy and Pharmacy Practice, Faculty of Pharmaceutical Sciences, The Hashemite University, Zarqa 13133, Jordan
| | - Omar Gammoh
- Department of Clinical Pharmacy and Pharmacy Practice, Faculty of Pharmacy, Yarmouk University, Irbid 21163, Jordan
| | - Sara Altaber
- Department of Biology and Biotechnology, Faculty of Science, The Hashemite University, Zarqa 13133, Jordan
| | - Yousra Bseiso
- Department of Biology and Biotechnology, Faculty of Science, The Hashemite University, Zarqa 13133, Jordan
| | - Esam Qnais
- Department of Biology and Biotechnology, Faculty of Science, The Hashemite University, Zarqa 13133, Jordan
| | - Mohammed Wedyan
- Department of Biology and Biotechnology, Faculty of Science, The Hashemite University, Zarqa 13133, Jordan
| | - Muna Oqal
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, The Hashemite University, Zarqa 13133, Jordan
| | - Abdelrahim Alqudah
- Department of Clinical Pharmacy and Pharmacy Practice, Faculty of Pharmaceutical Sciences, The Hashemite University, Zarqa 13133, Jordan
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2
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Kadac-Czapska K, Ośko J, Knez E, Grembecka M. Microplastics and Oxidative Stress-Current Problems and Prospects. Antioxidants (Basel) 2024; 13:579. [PMID: 38790684 PMCID: PMC11117644 DOI: 10.3390/antiox13050579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 04/29/2024] [Accepted: 05/03/2024] [Indexed: 05/26/2024] Open
Abstract
Microplastics (MPs) are plastic particles between 0.1 and 5000 µm in size that have attracted considerable attention from the scientific community and the general public, as they threaten the environment. Microplastics contribute to various harmful effects, including lipid peroxidation, DNA damage, activation of mitogen-activated protein kinase pathways, cell membrane breakages, mitochondrial dysfunction, lysosomal defects, inflammation, and apoptosis. They affect cells, tissues, organs, and overall health, potentially contributing to conditions like cancer and cardiovascular disease. They pose a significant danger due to their widespread occurrence in food. In recent years, information has emerged indicating that MPs can cause oxidative stress (OS), a known factor in accelerating the aging of organisms. This comprehensive evaluation exposed notable variability in the reported connection between MPs and OS. This work aims to provide a critical review of whether the harmfulness of plastic particles that constitute environmental contaminants may result from OS through a comprehensive analysis of recent research and existing scientific literature, as well as an assessment of the characteristics of MPs causing OS. Additionally, the article covers the analytical methodology used in this field. The conclusions of this review point to the necessity for further research into the effects of MPs on OS.
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Affiliation(s)
| | | | | | - Małgorzata Grembecka
- Department of Bromatology, Faculty of Pharmacy, Medical University of Gdańsk, 80-416 Gdańsk, Poland; (K.K.-C.); (J.O.); (E.K.)
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3
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Yang Z, Marcoci C, Öztürk HK, Giama E, Yenicelik AG, Slanař O, Linington C, Desai R, Smith KJ. Tissue Hypoxia and Associated Innate Immune Factors in Experimental Autoimmune Optic Neuritis. Int J Mol Sci 2024; 25:3077. [PMID: 38474322 DOI: 10.3390/ijms25053077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Revised: 03/03/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024] Open
Abstract
Visual loss in acute optic neuritis is typically attributed to axonal conduction block due to inflammatory demyelination, but the mechanisms remain unclear. Recent research has highlighted tissue hypoxia as an important cause of neurological deficits and tissue damage in both multiple sclerosis (MS) and experimental autoimmune encephalomyelitis (EAE) and, here, we examine whether the optic nerves are hypoxic in experimental optic neuritis induced in Dark Agouti rats. At both the first and second peaks of disease expression, inflamed optic nerves labelled significantly for tissue hypoxia (namely, positive for hypoxia inducible factor-1α (HIF1α) and intravenously administered pimonidazole). Acutely inflamed nerves were also labelled significantly for innate markers of oxidative and nitrative stress and damage, including superoxide, nitric oxide and 3-nitrotyrosine. The density and diameter of capillaries were also increased. We conclude that in acute optic neuritis, the optic nerves are hypoxic and come under oxidative and nitrative stress and damage. Tissue hypoxia can cause mitochondrial failure and thus explains visual loss due to axonal conduction block. Tissue hypoxia can also induce a damaging oxidative and nitrative environment. The findings indicate that treatment to prevent tissue hypoxia in acute optic neuritis may help to restore vision and protect from damaging reactive oxygen and nitrogen species.
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Affiliation(s)
- Zhiyuan Yang
- Department of Neuroinflammation, UCL Queen Square Institute of Neurology, University College London, London WC1N 1PJ, UK
| | - Cristina Marcoci
- Department of Neuroinflammation, UCL Queen Square Institute of Neurology, University College London, London WC1N 1PJ, UK
| | - Hatice Kübra Öztürk
- Department of Neuroinflammation, UCL Queen Square Institute of Neurology, University College London, London WC1N 1PJ, UK
- Institute of Pharmacology, First Faculty of Medicine, Charles University and General University Hospital in Prague, 12800 Prague, Czech Republic
| | - Eleni Giama
- Department of Neuroinflammation, UCL Queen Square Institute of Neurology, University College London, London WC1N 1PJ, UK
| | - Ayse Gertrude Yenicelik
- Department of Neuroinflammation, UCL Queen Square Institute of Neurology, University College London, London WC1N 1PJ, UK
| | - Ondřej Slanař
- Institute of Pharmacology, First Faculty of Medicine, Charles University and General University Hospital in Prague, 12800 Prague, Czech Republic
| | - Christopher Linington
- School of Infection and Immunity, The Sir Graeme Davies Building, Glasgow G12 8TA, UK
| | - Roshni Desai
- Department of Neuroinflammation, UCL Queen Square Institute of Neurology, University College London, London WC1N 1PJ, UK
| | - Kenneth J Smith
- Department of Neuroinflammation, UCL Queen Square Institute of Neurology, University College London, London WC1N 1PJ, UK
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4
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Zlotver I, Sosnik A. Glucosylated Hybrid TiO 2 /Polymer Nanomaterials for Actively Targeted Sonodynamic Therapy of Cancer. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305475. [PMID: 37715267 DOI: 10.1002/smll.202305475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/29/2023] [Indexed: 09/17/2023]
Abstract
Sonodynamic therapy (SDT) is an anti-cancer therapeutic strategy based on the generation of reactive oxygen species (ROS) upon local ultrasound (US) irradiation of sono-responsive molecules or nanomaterials that accumulate in the tumor. In this work, the sonodynamic efficiency of sono-responsive hybrid nanomaterials composed of amorphous titanium dioxide and an amphiphilic poly(ethylene oxide)-b-poly(propylene oxide) block copolymer is synthesized, fully characterized, and investigated both in vitro and in vivo. The modular and versatile synthetic pathway enables the control of the nanoparticle size between 30 and 300 nm (dynamic light scattering) and glucosylation of the surface for active targeting of tumors overexpressing glucose transporters. Studies on 2D and 3D rhabdomyosarcoma cell cultures reveal a statistically significant increase in the sonodynamic efficiency of glucosylated hybrid nanoparticles with respect to unmodified ones. Using a xenograft rhabdomyosarcoma murine model, it is demonstrated that by tuning the nanoparticle size and surface features, the tumor accumulation is increased by ten times compared to main off-target clearance organs such as the liver. Finally, the SDT of rhabdomyosarcoma-bearing mice is investigated with 50-nm glucosylated nanoparticles. Findings evidence a dramatic prolongation of the animal survival and tumor volumes 100 times smaller than those treated only with ultrasound or nanoparticles.
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Affiliation(s)
- Ivan Zlotver
- Laboratory of Pharmaceutical Nanomaterials Science, Department of Materials Science and Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Alejandro Sosnik
- Laboratory of Pharmaceutical Nanomaterials Science, Department of Materials Science and Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
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Soares RB, Manguinhas R, Costa JG, Saraiva N, Gil N, Rosell R, Camões SP, Batinic-Haberle I, Spasojevic I, Castro M, Miranda JP, Guedes de Pinho P, Fernandes AS, Oliveira NG. The Redox-Active Manganese(III) Porphyrin, MnTnBuOE-2-PyP 5+, Impairs the Migration and Invasion of Non-Small Cell Lung Cancer Cells, Either Alone or Combined with Cisplatin. Cancers (Basel) 2023; 15:3814. [PMID: 37568630 PMCID: PMC10416961 DOI: 10.3390/cancers15153814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 07/21/2023] [Indexed: 08/13/2023] Open
Abstract
Manganese(III) porphyrin MnTnBuOE-2-PyP5+ (MnBuOE, BMX-001) is a third-generation redox-active cationic substituted pyridylporphyrin-based drug with a good safety/toxicity profile that has been studied in several types of cancer. It is currently in four phase I/II clinical trials on patients suffering from glioma, head and neck cancer, anal squamous cell carcinoma and multiple brain metastases. There is yet an insufficient understanding of the impact of MnBuOE on lung cancer. Therefore, this study aims to fill this gap by demonstrating the effects of MnBuOE on non-small cell lung cancer (NSCLC) A549 and H1975 cell lines. The cytotoxicity of MnBuOE alone or combined with cisplatin was evaluated by crystal violet (CV) and/or 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulphophenyl)-2H-Tetrazolium (MTS) reduction assays. Intracellular ROS levels were assessed using two fluorescent probes. Furthermore, the impact of MnBuOE alone or in combination with cisplatin on collective cell migration, individual chemotactic migration and chemoinvasion was assessed using the wound-healing and transwell assays. The expression of genes related to migration and invasion was assessed through RT-qPCR. While MnBuOE alone decreased H1975 cell viability at high concentrations, when combined with cisplatin it markedly reduced the viability of the more invasive H1975 cell line but not of A549 cell line. However, MnBuOE alone significantly decreased the migration of both cell lines. The anti-migratory effect was more pronounced when MnBuOE was combined with cisplatin. Finally, MnBuOE alone or combined with cisplatin significantly reduced cell invasion. MnBuOE alone or combined with cisplatin downregulated MMP2, MMP9, VIM, EGFR and VEGFA and upregulated CDH1 in both cell lines. Overall, our data demonstrate the anti-metastatic potential of MnBuOE for the treatment of NSCLC.
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Affiliation(s)
- Rita B. Soares
- Research Institute for Medicines (imed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisboa, Portugal; (R.B.S.); (R.M.); (S.P.C.); (M.C.); (J.P.M.)
- Lung Unit, Champalimaud Clinical Centre, Champalimaud Foundation, Av. Brasília, 1400-038 Lisbon, Portugal;
| | - Rita Manguinhas
- Research Institute for Medicines (imed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisboa, Portugal; (R.B.S.); (R.M.); (S.P.C.); (M.C.); (J.P.M.)
| | - João G. Costa
- Universidade Lusófona’s Research Center for Biosciences & Health Technologies (CBIOS), Campo Grande 376, 1749-024 Lisboa, Portugal; (J.G.C.); (N.S.)
| | - Nuno Saraiva
- Universidade Lusófona’s Research Center for Biosciences & Health Technologies (CBIOS), Campo Grande 376, 1749-024 Lisboa, Portugal; (J.G.C.); (N.S.)
| | - Nuno Gil
- Lung Unit, Champalimaud Clinical Centre, Champalimaud Foundation, Av. Brasília, 1400-038 Lisbon, Portugal;
| | - Rafael Rosell
- Laboratory of Cellular and Molecular Biology, Institute for Health Science Research Germans Trias I Pujol (IGTP), Campus Can Ruti, Ctra de Can Ruti, Camí de les Escoles, s/n, 08916 Badalona, Barcelona, Spain;
| | - Sérgio P. Camões
- Research Institute for Medicines (imed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisboa, Portugal; (R.B.S.); (R.M.); (S.P.C.); (M.C.); (J.P.M.)
| | - Ines Batinic-Haberle
- Department of Radiation Oncology, Duke University School of Medicine, Durham, NC 27710, USA;
| | - Ivan Spasojevic
- Department of Medicine, Duke University School of Medicine, Durham, NC 27710, USA;
- PK/PD Core Laboratory, Duke Cancer Institute, Duke University School of Medicine, Durham, NC 27710, USA
| | - Matilde Castro
- Research Institute for Medicines (imed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisboa, Portugal; (R.B.S.); (R.M.); (S.P.C.); (M.C.); (J.P.M.)
| | - Joana P. Miranda
- Research Institute for Medicines (imed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisboa, Portugal; (R.B.S.); (R.M.); (S.P.C.); (M.C.); (J.P.M.)
| | - Paula Guedes de Pinho
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Department of Biological Sciences, Laboratory of Toxicology, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal;
- UCIBIO, REQUIMTE, Laboratory of Toxicology, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Ana S. Fernandes
- Universidade Lusófona’s Research Center for Biosciences & Health Technologies (CBIOS), Campo Grande 376, 1749-024 Lisboa, Portugal; (J.G.C.); (N.S.)
| | - Nuno G. Oliveira
- Research Institute for Medicines (imed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisboa, Portugal; (R.B.S.); (R.M.); (S.P.C.); (M.C.); (J.P.M.)
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6
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Yu Q, Chen S, Li J, Tang H, Shi J, Guo W, Zhang S. Mitogen activated protein kinase phosphatase 5 alleviates liver ischemia-reperfusion injury by inhibiting TAK1/JNK/p38 pathway. Sci Rep 2023; 13:11110. [PMID: 37429895 DOI: 10.1038/s41598-023-37768-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 06/27/2023] [Indexed: 07/12/2023] Open
Abstract
Mitogen activated protein kinase phosphatase 5 (MKP5) is a member of the MKP family and has been implicated in diverse biological and pathological conditions. However, it is unknown what role MKP5 plays in liver ischemia/reperfusion (I/R) injury. In the present study, we used MKP5 global knockout (KO) and MKP5 overexpressing mice to establish a liver I/R injury model in vivo, and MKP5 knockdown or MKP5 overexpressing HepG2 cells to establish a hypoxia-reoxygenation (H/R) model in vitro. In this study we demonstrated that protein expression of MKP5 was significantly downregulated in liver tissue of mice after I/R injury, and HepG2 cells subjected to H/R injury. MKP5 KO or knockdown significantly increased liver injury, as demonstrated by elevated serum transaminases, hepatocyte necrosis, infiltrating inflammatory cells, secretion of pro-inflammatory cytokines, apoptosis, oxidative stress. Conversely, MKP5 overexpression significantly attenuated liver and cell injury. Furthermore, we showed that MKP5 exerted its protective effect by inhibiting c-Jun N-terminal kinase (JNK)/p38 activity, and its action was dependent on Transforming growth factor-β-activated kinase 1 (TAK1) activity. According to our results, MKP5 inhibited the TAK1/JNK/p38 pathway to protect liver from I/R injury. Our study identifies a novel target for the diagnosis and treatment of liver I/R injury.
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Affiliation(s)
- Qiwen Yu
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital of Zhengzhou University, 1 Jianshe East Road, Erqi, Zhengzhou, Henan, China
- Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, Henan, China
| | - Sanyang Chen
- Department of Emergency Surgery, the First Affiliated Hospital of Zhengzhou, Zhengzhou, Henan, China
| | - Jiye Li
- Department of Emergency Surgery, the First Affiliated Hospital of Zhengzhou, Zhengzhou, Henan, China
| | - Hongwei Tang
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital of Zhengzhou University, 1 Jianshe East Road, Erqi, Zhengzhou, Henan, China
- Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, Henan, China
| | - Jihua Shi
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital of Zhengzhou University, 1 Jianshe East Road, Erqi, Zhengzhou, Henan, China
- Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, Henan, China
| | - Wenzhi Guo
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital of Zhengzhou University, 1 Jianshe East Road, Erqi, Zhengzhou, Henan, China
- Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, Henan, China
| | - Shuijun Zhang
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital of Zhengzhou University, 1 Jianshe East Road, Erqi, Zhengzhou, Henan, China.
- Henan Key Laboratory of Digestive Organ Transplantation, Zhengzhou, Henan, China.
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Zhou XQ, Wang P, Ramu V, Zhang L, Jiang S, Li X, Abyar S, Papadopoulou P, Shao Y, Bretin L, Siegler MA, Buda F, Kros A, Fan J, Peng X, Sun W, Bonnet S. In vivo metallophilic self-assembly of a light-activated anticancer drug. Nat Chem 2023:10.1038/s41557-023-01199-w. [PMID: 37169984 DOI: 10.1038/s41557-023-01199-w] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 04/05/2023] [Indexed: 05/13/2023]
Abstract
Self-assembling molecular drugs combine the easy preparation typical of small-molecule chemotherapy and the tumour-targeting properties of drug-nanoparticle conjugates. However, they require a supramolecular interaction that survives the complex environment of a living animal. Here we report that the metallophilic interaction between cyclometalated palladium complexes generates supramolecular nanostructures in living mice that have a long circulation time (over 12 h) and efficient tumour accumulation rate (up to 10.2% of the injected dose per gram) in a skin melanoma tumour model. Green light activation leads to efficient tumour destruction due to the type I photodynamic effect generated by the self-assembled palladium complexes, as demonstrated in vitro by an up to 96-fold cytotoxicity increase upon irradiation. This work demonstrates that metallophilic interactions are well suited to generating stable supramolecular nanotherapeutics in vivo with exceptional tumour-targeting properties.
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Affiliation(s)
- Xue-Quan Zhou
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, People's Republic of China
- Leiden Institute of Chemistry, Universiteit Leiden, Leiden, the Netherlands
- Department of Molecular Biochemistry and Pharmacology, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Peiyuan Wang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, People's Republic of China
- Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, People's Republic of China
| | - Vadde Ramu
- Leiden Institute of Chemistry, Universiteit Leiden, Leiden, the Netherlands
| | - Liyan Zhang
- Leiden Institute of Chemistry, Universiteit Leiden, Leiden, the Netherlands
| | - Suhua Jiang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, People's Republic of China
- Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, People's Republic of China
| | - Xuezhao Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, People's Republic of China
| | - Selda Abyar
- Leiden Institute of Chemistry, Universiteit Leiden, Leiden, the Netherlands
| | | | - Yang Shao
- Leiden Institute of Chemistry, Universiteit Leiden, Leiden, the Netherlands
| | - Ludovic Bretin
- Leiden Institute of Chemistry, Universiteit Leiden, Leiden, the Netherlands
| | - Maxime A Siegler
- Department of Chemistry, Johns Hopkins University, Baltimore, MD, USA
| | - Francesco Buda
- Leiden Institute of Chemistry, Universiteit Leiden, Leiden, the Netherlands
| | - Alexander Kros
- Leiden Institute of Chemistry, Universiteit Leiden, Leiden, the Netherlands
| | - Jiangli Fan
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, People's Republic of China
| | - Xiaojun Peng
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, People's Republic of China
| | - Wen Sun
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, People's Republic of China.
| | - Sylvestre Bonnet
- Leiden Institute of Chemistry, Universiteit Leiden, Leiden, the Netherlands.
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Wang Y, Jian C, Long Y, Xu X, Song Y, Yin Z. H 2O 2-triggered "off/on signal" nanoparticles target P-selectin for the non-invasive and contrast-enhanced theranostics for arterial thrombosis. Acta Biomater 2023; 158:769-781. [PMID: 36565786 DOI: 10.1016/j.actbio.2022.12.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 12/10/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
Pathological coagulation within an injured artery and the subsequent cardiovascular complications, such as stroke and heart attack, greatly threaten human life. Inspired by the biochemical features of acute arterial thrombosis, such as abundant activated platelets and hydrogen peroxide (H2O2), we constructed platelet-targeted theranostic nanoparticles (CyBA/PFM NPs) with H2O2-triggered photoacoustic contrast enhancement and antithrombotic capabilities. CyBA/PFM NPs were designed to target platelet-rich clots via fucoidan segment within the carrier, which could be activated by H2O2 to produce fluorescent "CyOH" molecules, thus turning on the photoacoustic signal. CyBA/PFM NPs showed obvious amplification of fluorescence following incubation with fresh clots, exhibiting efficient scavenging ability of intracellular reactive oxygen species (ROS). In a FeCl3-induced mouse model of carotid thrombosis, CyBA/PFM NPs significantly amplified the photoacoustic contrast in thrombogenic tissues, effectively eliminated ROS within the occlusion site, and suppressed the thrombus formation, accompanied by a normalization of the soluble CD40L level. Given their accurate imaging potential, potent antithrombotic activities and acceptable biosafety, CyBA/PFM NPs hold strong potential as nanoscale theranostics for H2O2-correlated cardiovascular diseases. STATEMENT OF SIGNIFICANCE: In this study, we developed a platelet-targeted and H2O2-triggered nanosystem self-assembled from phenylboronated fucoidan/maltodextrin polymers and responsive near-infrared probes. The fucoidan segment within the carrier could facilitate the specific delivery of the therapeutic polymers and probes to the platelet-rich arterial thrombus. In a mouse model of FeCl3-induced arterial thrombosis, the system could be activated by H2O2 to produce fluorescent "CyOH" molecules, thus turning on the photoacoustic signal and specifically imaging thrombosed tissues. Besides, CyBA/PFM NPs significantly effectively eliminated ROS within the occlusion site and suppressed the thrombus formation. Given their theranostic potential and acceptable biosafety, this system has great potential for H2O2-correlated cardiovascular diseases.
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Affiliation(s)
- Ying Wang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China; School of Pharmacy, Chengdu University, Chengdu, 610106, China
| | - Chuanjiang Jian
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Yiqing Long
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Xiaowen Xu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Yang Song
- Cooperative Institute for Great Lakes Research, School for Environment and Sustainability, University of Michigan, Ann Arbor, MI 48109, United States
| | - Zongning Yin
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China.
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9
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Stewart AN, Jones LAT, Gensel JC. Improving translatability of spinal cord injury research by including age as a demographic variable. Front Cell Neurosci 2022; 16:1017153. [PMID: 36467608 PMCID: PMC9714671 DOI: 10.3389/fncel.2022.1017153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 11/04/2022] [Indexed: 11/18/2022] Open
Abstract
Pre-clinical and clinical spinal cord injury (SCI) studies differ in study design, particularly in the demographic characteristics of the chosen population. In clinical study design, criteria such as such as motor scores, neurological level, and severity of injury are often key determinants for participant inclusion. Further, demographic variables in clinical trials often include individuals from a wide age range and typically include both sexes, albeit historically most cases of SCI occur in males. In contrast, pre-clinical SCI models predominately utilize young adult rodents and typically use only females. While it is often not feasible to power SCI clinical trials to test multi-variable designs such as contrasting different ages, recent pre-clinical findings in SCI animal models have emphasized the importance of considering age as a biological variable prior to human experiments. Emerging pre-clinical data have identified case examples of treatments that diverge in efficacy across different demographic variables and have elucidated several age-dependent effects in SCI. The extent to which these differing or diverging treatment responses manifest clinically can not only complicate statistical findings and trial interpretations but also may be predictive of worse outcomes in select clinical populations. This review highlights recent literature including age as a biological variable in pre-clinical studies and articulates the results with respect to implications for clinical trials. Based on emerging unpredictable treatment outcomes in older rodents, we argue for the importance of including age as a biological variable in pre-clinical animal models prior to clinical testing. We believe that careful analyses of how age interacts with SCI treatments and pathophysiology will help guide clinical trial design and may improve both the safety and outcomes of such important efforts.
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Affiliation(s)
- Andrew N. Stewart
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY, United States,Spinal Cord and Brain Injury Research Center, College of Medicine, University of Kentucky, Lexington, KY, United States
| | - Linda A. T. Jones
- Center for Outcomes and Measurement, Jefferson College of Rehabilitation Sciences, Thomas Jefferson University, Philadelphia, PA, United States
| | - John C. Gensel
- Department of Physiology, College of Medicine, University of Kentucky, Lexington, KY, United States,Spinal Cord and Brain Injury Research Center, College of Medicine, University of Kentucky, Lexington, KY, United States,*Correspondence: John C. Gensel,
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Oxidative and Inflammatory Imbalance in Placenta and Kidney of sFlt1-Induced Early-Onset Preeclampsia Rat Model. Antioxidants (Basel) 2022; 11:antiox11081608. [PMID: 36009326 PMCID: PMC9405374 DOI: 10.3390/antiox11081608] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/13/2022] [Accepted: 08/15/2022] [Indexed: 12/13/2022] Open
Abstract
Preeclampsia (PE) is a pregnancy-specific disorder characterized by the new onset of hypertension plus proteinuria and/or end-organ dysfunction. Here, we investigate the role of the nicotinamide adenine dinucleotide phosphate (NADPH) oxidase system as a major component of reactive oxygen species generation, in a rodent model of early-onset preeclampsia induced by excess sFlt1 (soluble fms-like tyrosine kinase 1). Placenta and kidney samples were obtained from normal pregnant and PE rats to measure the sFlt1/PlGF (placental growth factor) ratio in addition to oxidative stress-related parameters, including the activities and expressions of NADPH oxidase isoforms (NOX1, NOX2, and NOX4), components of nitric oxide (NO) metabolism, and antioxidant enzymes. Peroxisome proliferator-activated receptors (PPARα, PPARγ) and cytokines IL1β, IL3, IL6, IL10, and IL18 were also measured to evaluate the inflammation status in our experimental setting. Excessive O2●− production was found in rats that were treated with sFlt1; interestingly, this alteration appears to be mediated mainly by NOX2 in the placenta and by NOX4 in the kidney. Altered NO metabolism and antioxidant defense systems, together with mitochondrial dysfunction, were observed in this model of PE. Preeclamptic animals also exhibited overexpression of proinflammatory biomarkers as well as increased collagen deposition. Our results highlight the role of NADPH oxidase in mediating oxidative stress and possibly inflammatory processes in the placenta and kidney of an sFlt1-based model of early-onset preeclampsia.
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11
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CeO2-Zn Nanocomposite Induced Superoxide, Autophagy and a Non-Apoptotic Mode of Cell Death in Human Umbilical-Vein-Derived Endothelial (HUVE) Cells. TOXICS 2022; 10:toxics10050250. [PMID: 35622663 PMCID: PMC9147432 DOI: 10.3390/toxics10050250] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/12/2022] [Accepted: 05/13/2022] [Indexed: 02/01/2023]
Abstract
In this study, a nanocomposite of cerium oxide-zinc (CeO2-Zn; 26 ± 11 nm) based on the antioxidant rare-earth cerium oxide (CeO2) nanoparticles (NPs) with the modifier zinc (Zn) was synthesized by sintering method and characterized. Its bio-response was examined in human umbilical-vein-derived endothelial (HUVE) cells to get insight into the components of vascular system. While NPs of CeO2 did not significantly alter cell viability up to a concentration of 200 µg/mL for a 24 h exposure, 154 ± 6 µg/mL of nanocomposite CeO2-Zn induced 50% cytotoxicity. Mechanism of cytotoxicity occurring due to nanocomposite by its Zn content was compared by choosing NPs of ZnO, possibly the closest nanoparticulate form of Zn. ZnO NPs lead to the induction of higher reactive oxygen species (ROS) (DCF-fluorescence), steeper depletion in antioxidant glutathione (GSH) and a greater loss of mitochondrial membrane potential (MMP) as compared to that induced by CeO2-Zn nanocomposite. Nanocomposite of CeO2-Zn, on the other hand, lead to significant higher induction of superoxide radical (O2•−, DHE fluorescence), nitric oxide (NO, determined by DAR-2 imaging and Griess reagent) and autophagic vesicles (determined by Lysotracker and monodansylcadeverine probes) as compared to that caused by ZnO NP treatment. Moreover, analysis after triple staining (by annexin V-FITC, PI, and Hoechst) conducted at their respective IC50s revealed an apoptosis mode of cell death due to ZnO NPs, whereas CeO2-Zn nanocomposite induced a mechanism of cell death that was significantly different from apoptosis. Our findings on advanced biomarkers such as autophagy and mode of cell death suggested the CeO2-Zn nanocomposite might behave as independent nanostructure from its constituent ones. Since nanocomposites can behave independently of their constituent NPs/elements, by creating nanocomposites, NP versatility can be increased manifold by just manipulating existing NPs. Moreover, data in this study can furnish early mechanistic insight about the potential damage that could occur in the integrity of vascular systems.
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Wu M, Chen C, Liu Z, Tian J, Zhang W. Regulating the bacterial oxygen microenvironment via a perfluorocarbon-conjugated bacteriochlorin for enhanced photodynamic antibacterial efficacy. Acta Biomater 2022; 142:242-252. [PMID: 35183779 DOI: 10.1016/j.actbio.2022.02.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 02/05/2022] [Accepted: 02/11/2022] [Indexed: 02/07/2023]
Abstract
Photodynamic therapy (PDT) has attracted considerable attention, since it could effectively kill bacteria and prevent the development of multi-drug resistance. However, PDT currently suffers from oxygen limitation and hypoxia is a prominent feature of pathological states encountered in inflammation, wounds, and bacterial infections. Herein, an oxygen-tunable nanoplatform based on perfluorocarbon-conjugated tetrafluorophenyl bacteriochlorin (FBC-F) was designed for effective antimicrobial therapy. The introduction of fluorine atoms can not only increase the reactive oxygen species (ROS) production capacity of FBC-F by facilitating the intersystem crossing (ISC) process of FBC photosensitizers, but also make FBC-F deliver more oxygen into the treatment sites benefiting from the outstanding oxygen-dissolving capability of perfluorocarbon. As a consequence, the FBC-F nanoplatform was able to efficiently generate singlet oxygens for type II PDT, as well as superoxide anions and hydroxyl radicals for type I PDT, and significantly improve antibacterial efficacy in vitro. In vivo experiments further proved that the FBC-F with a powerful antibacterial capability could well promote wound healing and destroy biofilm. Thus, this FBC-F nanoplatform may open a new path in photodynamic antibacterial therapy. STATEMENT OF SIGNIFICANCE: Photodynamic therapy is a promising antibacterial treatment, but its efficacy is severely compromised by hypoxia. To overcome such a limitation, we constructed an oxygen-regulated nanoplatform (FBC-F) by attaching perfluorocarbons (PFC) to the NIR photosensitizer (FBC). As an analogue of bacteriochlorin, FBC could generate 1O2 through energy transfer , as well as O2-· and ·OH through electron transfer for synergistic type I and type II photodynamic antibacterial therapy. Benefiting from the oxygen-dissolving capability of PFC, FBC-F could efficiently deliver more oxygen into the treatment site and alleviate the hypoxic environment. As a consequence, FBC-F could effectively generate large amounts of reactive oxygen species to achieve improved antibacterial efficacy and provide a promising approach for eliminating biofilms.
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U. Uno U, Offiong J, Esua I, Ekaluo U. Attenuating Effect of Some Antioxidants on Caffeine Induced Oxidative Stress and Hepatotoxicity in Male Albino Rats. JOURNAL OF MEDICAL SCIENCES 2022. [DOI: 10.3923/jms.2022.140.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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14
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Huang H, Xie W, Wan Q, Mao L, Hu D, Sun H, Zhang X, Wei Y. A Self-Degradable Conjugated Polymer for Photodynamic Therapy with Reliable Postoperative Safety. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2104101. [PMID: 34898054 PMCID: PMC8811814 DOI: 10.1002/advs.202104101] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/27/2021] [Indexed: 05/05/2023]
Abstract
As a noninvasive therapeutic technique, photodynamic therapy (PDT) has attracted numerous research interests for cancer therapy. Nevertheless, the residual photosensitizers (PSs) still produce reactive oxygen species (ROS) and damage normal cells under sunlight after PDT, which limits their practical application in clinic. Herein, the authors propose a self-degradable type-I PS based on conjugated polymer, which is composed of aggregation-induced emission (AIE) and imidazole units. Due to the effective conjugated skeleton and unique AIE properties, thus-obtained polymers can effectively generate superoxide radical (O2-• ) through the type-I process under light irradiation, which is ideal for hypoxic tumors treatment. Intriguingly, under light irradiation, O2-• produced by the conjugated polymers can further lead to the self-degradation of the polymer to form nontoxic micro-molecules. It not only helps to resolve the potential phototoxicity problems of residual PSs, but also can accelerate the metabolism of the conjugated polymers to avoid the potential biotoxicity of drug accumulation. This work develops a self-degradable type-I PS, which can turn off the generation of ROS in time after PDT, providing a novel strategy to balance the PDT effect and postoperative safety.
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Affiliation(s)
- Hongye Huang
- The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)Department of ChemistryTsinghua UniversityBeijing100084China
| | - Wensheng Xie
- The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)Department of ChemistryTsinghua UniversityBeijing100084China
| | - Qing Wan
- School of Materials Science and EngineeringNanchang Hangkong UniversityNanchang330063China
| | - Liucheng Mao
- The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)Department of ChemistryTsinghua UniversityBeijing100084China
| | - Danning Hu
- The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)Department of ChemistryTsinghua UniversityBeijing100084China
| | - Hua Sun
- The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)Department of ChemistryTsinghua UniversityBeijing100084China
| | - Xiaoyong Zhang
- Department of ChemistryNanchang UniversityNanchang330031China
| | - Yen Wei
- The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)Department of ChemistryTsinghua UniversityBeijing100084China
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15
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Prestes ADS, Dos Santos MM, Kamdem JP, Mancini G, Schüler da Silva LC, de Bem AF, Barbosa NV. Methylglyoxal disrupts the functionality of rat liver mitochondria. Chem Biol Interact 2022; 351:109677. [PMID: 34634269 DOI: 10.1016/j.cbi.2021.109677] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 09/10/2021] [Accepted: 09/29/2021] [Indexed: 11/15/2022]
Abstract
Methylglyoxal (MG) is a reactive metabolite derived from different physiological pathways. Its production can be harmful to cells via glycation reactions of lipids, DNA, and proteins. But, the effects of MG on mitochondrial functioning and bioenergetic responses are still elusive. Then, the effects of MG on key parameters of mitochondrial functionality were examined here. Isolated rat liver mitochondria were exposed to 0.1-10 mM of MG to determine its toxicity in the mitochondrial viability, membrane potential (Δψm), swelling and the superoxide (O2•-) production. Besides, mitochondrial oxidative phosphorylation parameters were analyzed by high-resolution respiratory (HRR) assay. In this set of experiments, routine state, PM state (pyruvate/malate), oxidative phosphorylation (OXPHOS), LEAK respiration, electron transport system (ETS) and oxygen residual (ROX) states were evaluated. HRR showed that PM state, OXPHOS CI-Linked, LEAK respiration, ETS CI/CII-Linked and ETS CII-Linked/ROX were significantly inhibited by MG exposure. MG also inhibited the complex II activity, and decreased Δψm and the viability of mitochondria. Taken together, our data indicates that MG is an inductor of mitochondrial dysfunctions and impairs important steps of respiratory chain, effects that can alter bioenergetics responses.
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Affiliation(s)
- Alessandro de Souza Prestes
- Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, RS, Brazil.
| | - Matheus Mülling Dos Santos
- Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Jean Paul Kamdem
- Department of Biological Sciences, Regional University of Cariri, Pimenta, Crato, CE, Brazil
| | - Gianni Mancini
- Department of Biochemistry, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | | | - Andreza Fabro de Bem
- Department of Biochemistry, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Nilda Vargas Barbosa
- Department of Biochemistry and Molecular Biology, Federal University of Santa Maria, Santa Maria, RS, Brazil
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16
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van de Veerdonk FL, Renga G, Pariano M, Bellet MM, Servillo G, Fallarino F, De Luca A, Iannitti RG, Piobbico D, Gargaro M, Manni G, D'Onofrio F, Stincardini C, Sforna L, Borghi M, Castelli M, Pieroni S, Oikonomou V, Villella VR, Puccetti M, Giovagnoli S, Galarini R, Barola C, Maiuri L, Maria Agnese DF, Cellini B, Talesa V, Dinarello CA, Costantini C, Romani L. Anakinra restores cellular proteostasis by coupling mitochondrial redox balance to autophagy. J Clin Invest 2021; 132:144983. [PMID: 34847078 PMCID: PMC8759782 DOI: 10.1172/jci144983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 11/24/2021] [Indexed: 12/09/2022] Open
Abstract
Autophagy selectively degrades aggregation-prone misfolded proteins caused by defective cellular proteostasis. However, the complexity of autophagy may prevent the full appreciation of how its modulation could be used as a therapeutic strategy in disease management. Here we define a molecular pathway through which recombinant interleukin-1 receptor antagonist (IL-1Ra, anakinra) affects cellular proteostasis independently from the IL-1 receptor (IL-1R1). Anakinra promoted H2O2-driven autophagy through a xenobiotic sensing pathway involving the aryl hydrocarbon receptor that, activated through the indoleamine 2,3-dioxygenase 1-kynurenine pathway, transcriptionally activates NADPH Oxidase 4 independent of the IL-1R1. By coupling the mitochondrial redox balance to autophagy, anakinra improved the dysregulated proteostasis network in murine and human cystic fibrosis. We anticipate that anakinra may represent a therapeutic option in addition to its IL-1R1 dependent anti-inflammatory properties by acting at the intersection of mitochondrial oxidative stress and autophagy with the capacity to restore conditions in which defective proteostasis leads to human disease.
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Affiliation(s)
| | - Giorgia Renga
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Marilena Pariano
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Marina M Bellet
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Giuseppe Servillo
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | | | - Antonella De Luca
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Rossana G Iannitti
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Danilo Piobbico
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Marco Gargaro
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Giorgia Manni
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Fiorella D'Onofrio
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | | | - Luigi Sforna
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Monica Borghi
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Marilena Castelli
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Stefania Pieroni
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | | | - Valeria R Villella
- European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy
| | - Matteo Puccetti
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Stefano Giovagnoli
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Roberta Galarini
- Centro Sviluppo e Validazione Metodi, Istituto Zooprofilattico Sperimentale dell'Umbria e delle Marche, Perugia, Italy
| | - Carolina Barola
- Centro Sviluppo e Validazione Metodi, Istituto Zooprofilattico Sperimentale dell'Umbria e delle Marche, Perugia, Italy
| | - Luigi Maiuri
- European Institute for Research in Cystic Fibrosis, San Raffaele Scientific Institute, Milan, Italy
| | | | - Barbara Cellini
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Vincenzo Talesa
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Charles A Dinarello
- Department of Medicine, University of Colorado, Denver, United States of America
| | - Claudio Costantini
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Luigina Romani
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
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17
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de Holanda GS, dos Santos Valença S, Carra AM, Lichtenberger RCL, de Castilho B, Franco OB, de Moraes JA, Schanaider A. Translational Application of Fluorescent Molecular Probes for the Detection of Reactive Oxygen and Nitrogen Species Associated with Intestinal Reperfusion Injury. Metabolites 2021; 11:metabo11120802. [PMID: 34940560 PMCID: PMC8705498 DOI: 10.3390/metabo11120802] [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: 11/08/2021] [Revised: 11/23/2021] [Accepted: 11/23/2021] [Indexed: 02/07/2023] Open
Abstract
Acute mesenteric ischemia, caused by an abrupt interruption of blood flow in the mesenteric vessels, is associated with high mortality. When treated with surgical interventions or drugs to re-open the vascular lumen, the reperfusion process itself can inflict damage to the intestinal wall. Ischemia and reperfusion injury comprise complex mechanisms involving disarrangement of the splanchnic microcirculatory flow and impairment of the mitochondrial respiratory chain due to initial hypoxemia and subsequent oxidative stress during the reperfusion phase. This pathophysiologic process results in the production of large amounts of reactive oxygen (ROS) and nitrogen (RNS) species, which damage deoxyribonucleic acid, protein, lipids, and carbohydrates by autophagy, mitoptosis, necrosis, necroptosis, and apoptosis. Fluorescence-based systems using molecular probes have emerged as highly effective tools to monitor the concentrations and locations of these often short-lived ROS and RNS. The timely and accurate detection of both ROS and RNS by such an approach would help to identify early injury events associated with ischemia and reperfusion and increase overall clinical diagnostic sensitivity. This abstract describes the pathophysiology of intestinal ischemia and reperfusion and the early biological laboratory diagnosis using fluorescent molecular probes anticipating clinical decisions in the face of an extremely morbid disease.
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Affiliation(s)
- Gustavo Sampaio de Holanda
- Centre of Experimental Surgery, Post Graduate Program in Surgical Sciences, Department of Surgery, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro 219491-590, Brazil; (A.M.C.); (R.C.L.L.); (B.d.C.); (O.B.F.); (A.S.)
- Correspondence: ; Tel.: +55-21-9657-13794
| | - Samuel dos Santos Valença
- Redox Biology Laboratory, Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro 21941-901, Brazil; (S.d.S.V.); (J.A.d.M.)
| | - Amabile Maran Carra
- Centre of Experimental Surgery, Post Graduate Program in Surgical Sciences, Department of Surgery, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro 219491-590, Brazil; (A.M.C.); (R.C.L.L.); (B.d.C.); (O.B.F.); (A.S.)
| | - Renata Cristina Lopes Lichtenberger
- Centre of Experimental Surgery, Post Graduate Program in Surgical Sciences, Department of Surgery, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro 219491-590, Brazil; (A.M.C.); (R.C.L.L.); (B.d.C.); (O.B.F.); (A.S.)
| | - Bianca de Castilho
- Centre of Experimental Surgery, Post Graduate Program in Surgical Sciences, Department of Surgery, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro 219491-590, Brazil; (A.M.C.); (R.C.L.L.); (B.d.C.); (O.B.F.); (A.S.)
| | - Olavo Borges Franco
- Centre of Experimental Surgery, Post Graduate Program in Surgical Sciences, Department of Surgery, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro 219491-590, Brazil; (A.M.C.); (R.C.L.L.); (B.d.C.); (O.B.F.); (A.S.)
| | - João Alfredo de Moraes
- Redox Biology Laboratory, Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro 21941-901, Brazil; (S.d.S.V.); (J.A.d.M.)
| | - Alberto Schanaider
- Centre of Experimental Surgery, Post Graduate Program in Surgical Sciences, Department of Surgery, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro 219491-590, Brazil; (A.M.C.); (R.C.L.L.); (B.d.C.); (O.B.F.); (A.S.)
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Akhtar MJ, Ahamed M, Alhadlaq H. Anti-Inflammatory CeO 2 Nanoparticles Prevented Cytotoxicity Due to Exogenous Nitric Oxide Donors via Induction Rather Than Inhibition of Superoxide/Nitric Oxide in HUVE Cells. Molecules 2021; 26:5416. [PMID: 34500851 PMCID: PMC8434366 DOI: 10.3390/molecules26175416] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 09/01/2021] [Accepted: 09/04/2021] [Indexed: 11/16/2022] Open
Abstract
The mechanism behind the cytoprotective potential of cerium oxide nanoparticles (CeO2 NPs) against cytotoxic nitric oxide (NO) donors and H2O2 is still not clear. Synthesized and characterized CeO2 NPs significantly ameliorated the lipopolysaccharide (LPS)-induced cytokines IL-1β and TNF-α. The main goal of this study was to determine the capacities of NPs regarding signaling effects that could have occurred due to reactive oxygen species (ROS) and/or NO, since NP-induced ROS/NO did not lead to toxicity in HUVE cells. Concentrations that induced 50% cell death (i.e., IC50s) of two NO donors (DETA-NO; 1250 ± 110 µM and sodium nitroprusside (SNP); 950 ± 89 µM) along with the IC50 of H2O2 (120 ± 7 µM) were utilized to evaluate cytoprotective potential and its underlying mechanism. We determined total ROS (as a collective marker of hydrogen peroxide, superoxide radical (O2•-), hydroxyl radical, etc.) by DCFH-DA and used a O2•- specific probe DHE to decipher prominent ROS. The findings revealed that signaling effects mediated mainly by O2•- and/or NO are responsible for the amelioration of toxicity by CeO2 NPs at 100 µg/mL. The unaltered effect on mitochondrial membrane potential (MMP) due to NP exposure and, again, CeO2 NPs-mediated recovery in the loss of MMP due to exogenous NO donors and H2O2 suggested that NP-mediated O2•- production might be extra-mitochondrial. Data on activated glutathione reductase (GR) and unaffected glutathione peroxidase (GPx) activities partially explain the mechanism behind the NP-induced gain in GSH and persistent cytoplasmic ROS. The promoted antioxidant capacity due to non-cytotoxic ROS and/or NO production, rather than inhibition, by CeO2 NP treatment may allow cells to develop the capacity to tolerate exogenously induced toxicity.
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Affiliation(s)
- Mohd Javed Akhtar
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Maqusood Ahamed
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Hisham Alhadlaq
- Department of Physics and Astronomy, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia;
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Kwun MS, Lee DG. Apoptosis-like death-inducing property of tachyplesin I in Escherichia coli. J Basic Microbiol 2021; 61:795-807. [PMID: 34337763 DOI: 10.1002/jobm.202100133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/19/2021] [Accepted: 07/04/2021] [Indexed: 11/10/2022]
Abstract
Antimicrobial peptide (AMP) derived from the horseshoe crab, tachyplesin I (KWCFRVCYRGICYRRCR-NH2 ), displayed the apparent antimicrobial activity with low cytotoxicity, suggesting its efficacy as an attractive agent but still lacks the understandings regarding its mechanism(s). Hence, the study focused on investigating the antibacterial mode of action of tachyplesin I against Escherichia coli. Based on the reactive oxygen species generation displayed in several antimicrobial effects, the detection of superoxide anion and nitric oxide were verified after tachyplesin I treatment. Substantial increment of two molecules was followed by the imbalance in intracellular ion concentration, noticeably magnesium and calcium. The series of stages led to hydroxyl radical generation with reduced glutathione, followed by damage in DNA due to oxidative stress. Eventually, the apoptosis-like death in E. coli was monitored in DNA fragmentation-dependent manner due to the tachyplesin I treatment, verified by membrane depolarization, caspase-like protein activation, and phosphatidylserine exposure. Accordingly, tachyplesin I induces apoptosis-like death in E. coli, suggesting the potential of being a candidate for regulating bacterial infection.
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Affiliation(s)
- Min Seok Kwun
- School of Life Sciences, BK 21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea
| | - Dong Gun Lee
- School of Life Sciences, BK 21 FOUR KNU Creative BioResearch Group, Kyungpook National University, Daegu, Republic of Korea
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Akhtar MJ, Ahamed M, Alhadlaq H, Alrokayan S. Pt-Coated Au Nanoparticle Toxicity Is Preferentially Triggered Via Mitochondrial Nitric Oxide/Reactive Oxygen Species in Human Liver Cancer (HepG2) Cells. ACS OMEGA 2021; 6:15431-15441. [PMID: 34151121 PMCID: PMC8210405 DOI: 10.1021/acsomega.1c01882] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 05/20/2021] [Indexed: 05/09/2023]
Abstract
Reactive nitrogen species (RNS) that are formed from the reaction of versatile nitric oxide (NO) with reactive oxygen species (ROS) have been less explored in potential cancer therapy. This may be partly due to the fewer available agents that could induce NO in cells. Here, we report platinum-coated gold nanoparticles (Pt-coated Au NPs; 27 ± 20 nm) as a strong inducer of NO (assessed by live-cell imaging under NO-specific DAR-1 probe labeling and indirectly using a Griess reagent) in human liver carcinoma (HepG2) cells. In addition to NO, this study found a critical role of ROS from mitochondrial sources in the mechanism of toxicity caused by Pt-coated Au NPs. Cotreatment with a thiol-replenishing general antioxidant NAC (N-acetyl cysteine) led to significant amelioration of oxidative stress against NP-induced toxicity. However, NAC did not exhibit as much ameliorative potential against NP-induced oxidative stress as the superoxide radical (O2•-)-scavenging mitochondrial specific antioxidant mito-TEMPO did. The higher protective potential of mito-TEMPO in comparison to NAC reveals mitochondrial ROS as an active mediator of NP-induced toxicity in HepG2 cells. Moreover, the relatively unaltered NP-induced NO concentration under cotreatment of GSH modulators NAC and buthionine sulfoximine (BSO) suggested that NO production due to NP treatment is rather independent of the cellular thiols at least in HepG2 cells. Moreover, toxicity potentiation by exogenous H2O2 again suggested a more direct involvement of ROS/RNS in comparison to the less potentiation of toxicity due to GSH-exhausting BSO. A steeper amelioration in NP-induced NO and ROS and, consequently, cytotoxicity by mito-TEMPO in comparison to NAC reveal a pronounced role of NO and ROS via the mitochondrial pathway in the toxicity of Pt-coated Au NPs in HepG2 cells.
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Affiliation(s)
- Mohd Javed Akhtar
- King
Abdullah Institute for Nanotechnology, King
Saud University, Riyadh 11451, Saudi Arabia
| | - Maqusood Ahamed
- King
Abdullah Institute for Nanotechnology, King
Saud University, Riyadh 11451, Saudi Arabia
| | - Hisham Alhadlaq
- King
Abdullah Institute for Nanotechnology, King
Saud University, Riyadh 11451, Saudi Arabia
- Department
of Physics and Astronomy, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - Salman Alrokayan
- Department
of Biochemistry, College of Science, King
Saud University, Riyadh 11451, Saudi Arabia
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21
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Xiao R, Zhao HC, Yan TT, Zhang Q, Huang YS. Angiotensin II and hypoxia induce autophagy in cardiomyocytes via activating specific protein kinase C subtypes. Cardiovasc Diagn Ther 2021; 11:744-759. [PMID: 34295701 DOI: 10.21037/cdt-20-883] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 05/17/2021] [Indexed: 11/06/2022]
Abstract
Background The purpose of this study was to explore the role of protein kinase C (PKC) isozymes and reactive oxygen species (ROS) in hypoxia and angiotensin (Ang) II-induced autophagy. Methods Primary cardiomyocytes were isolated from Sprague-Dawley (SD) neonatal rats and cultured in hypoxia and/or Ang II conditions. Dihydroethidium fluorescence staining was used to detect the content of ROS. Cardiomyocyte autophagy was determined using Monodansylcadaverine fluorescence staining and Western blot. We also inhibited ROS production to explore the relationship between ROS and autophagy. ELISA was used to detect the contents of PKC δ and PKC ε. After inhibition of PKC δ activation and PKC ε expression by lentiviral siRNA, ROS content and autophagy of cultured cardiomyocytes were detected. Results Hypoxia and Ang II stimulation increased autophagy in cardiomyocytes, accompanied by increased intracellular ROS production. Inhibiting ROS following hypoxia or Ang II stimulation significantly suppressed autophagy in comparison with hypoxia or Ang II stimulation group. Inhibiting PKC δ significantly reduced ROS production and autophagy activity following hypoxia or accompanied with Ang II stimulation except Ang II stimulation alone. Knockdown of PKC ε notably decreased ROS production and autophagy in response to Ang II alone and in combination with hypoxia rather than hypoxia alone. Conclusions Both hypoxia and Ang II stimulation can induce autophagy in cardiomyocytes through increasing intracellular ROS. However, hypoxia and Ang II stimulation induced myocardial autophagy via PKC δ and PKC ε, respectively.
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Affiliation(s)
- Rong Xiao
- Burn Center of PLA, No. 990 Hospital of PLA, Zhumadian, China
| | - Hai-Chun Zhao
- Burn Center of PLA, No. 990 Hospital of PLA, Zhumadian, China
| | - Tian-Tian Yan
- Burn Center of PLA, No. 990 Hospital of PLA, Zhumadian, China
| | - Qiong Zhang
- Institute of Burn Research, State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, The Third Military Medical University, Chongqing, China
| | - Yue-Sheng Huang
- Department of Wound Repair, Institute of Wound Repair, Shenzhen People's Hospital, the First Affiliated Hospital of Southern University of Science and Technology, and the Second Clinical Medical College of Jinan University, Shenzhen, China
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22
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Synthetic Hexanucleotides as a Tool to Overcome Excessive Neutrophil Activation Caused by CpG-Containing Oligonucleotides. Pathogens 2021; 10:pathogens10050530. [PMID: 33924760 PMCID: PMC8146577 DOI: 10.3390/pathogens10050530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 04/23/2021] [Accepted: 04/26/2021] [Indexed: 11/16/2022] Open
Abstract
Mimicking bacterial DNA, synthetic CpG-containing oligodeoxyribonucleotides (CpG-ODNs) have a powerful immunomodulatory potential. Their practical application is mainly associated with the production of vaccines, where they are used as adjuvants, as well as in local antimicrobial therapy. CpG-ODNs act on a wide variety of immune cells, including neutrophilic granulocytes. On the one hand, the stimulatory effect provides both the direct implementation of their antimicrobial and fungicidal mechanisms, and an avalanche-like strengthening of the immune signal due to interaction with other participants in the immune process. On the other hand, hyperactivation of neutrophilic granulocytes can have negative consequences. In particular, the formation of unreasonably high amounts of reactive oxygen species leads to tissue damages and, as a consequence, a spontaneous aggravation and prolongation of the inflammatory process. Under physiological conditions, a large number of DNA fragments are present in inflammation foci: both of microbial and self-tissue origin. We investigated effects of several short modified hexanucleotides on the main indicators of neutrophil activation, as well as their influence on the immunomodulatory activity of known synthetic CpG-ODNs. The results obtained show that short oligonucleotides partially inhibit the prooxidant effect of synthetic CpG-ODNs without significantly affecting the ability of the latter to overcome bacteria-induced pro-survival effects on neutrophilic granulocytes.
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23
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Vishalakshi GJ, Hemshekhar M, Sandesha VD, Prashanth KS, Jagadish S, Paul M, Kemparaju K, Girish KS. Bisphenol AF elevates procoagulant platelets by inducing necroptosis via RIPK1-inflammasome axis. Toxicology 2021; 454:152742. [PMID: 33662508 DOI: 10.1016/j.tox.2021.152742] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 01/30/2021] [Accepted: 02/26/2021] [Indexed: 12/11/2022]
Abstract
Bisphenol AF, an analogue of Bisphenol A, is an important raw material used in the production of plastic and rubber substances like plastic bottles and containers, toys, and medical supplies. Increased contamination of air, water, dust, and food with BPA/BPAF, poses an enormous threat to humans, globally. BPAF/BPA are endocrine-disrupting chemicals that mimic estrogen hormone, thus increasing the risks of various metabolic and chronic disorders. Exposure of human blood cells to BPA/BPAF induces oxidative stress and genotoxicity. However, its effects on platelets, which play central roles in hemostasis and thrombosis, are not well-documented. In this study, we demonstrate that BPAF induces RIPK1-inflammasome axis-mediated necroptosis in platelets, increasing procoagulant platelet levels in vivo and in vitro. We also show that BPAF-induced rise in procoagulant platelets worsens pulmonary thromboembolism in vivo. The elevated procoagulant platelets are shown to increase platelet-neutrophil/monocyte aggregates that mediate pathogenesis of CVD, thrombosis, and chronic inflammatory diseases. Our results demonstrate the toxic effects of BPAF on platelets and how it propagates the clinical complications by elevating procoagulant platelet numbers. Altogether, our study sends a cautionary message against extensive use of BPAF in the plastic and rubber industries, resulting in frequent human exposure to it, thus endangering platelet functions.
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Affiliation(s)
- Gopalapura J Vishalakshi
- Department of Studies in Biochemistry, University of Mysore, Manasagangotri, Mysuru, 570 006, India
| | - Mahadevappa Hemshekhar
- Department of Studies in Biochemistry, University of Mysore, Manasagangotri, Mysuru, 570 006, India
| | | | - Kunthurumole S Prashanth
- Department of Studies in Biochemistry, University of Mysore, Manasagangotri, Mysuru, 570 006, India
| | - Swamy Jagadish
- Department of Studies in Biochemistry, University of Mysore, Manasagangotri, Mysuru, 570 006, India
| | - Manoj Paul
- Department of Studies in Biochemistry, University of Mysore, Manasagangotri, Mysuru, 570 006, India
| | - Kempaiah Kemparaju
- Department of Studies in Biochemistry, University of Mysore, Manasagangotri, Mysuru, 570 006, India.
| | - Kesturu S Girish
- Department of Studies in Biochemistry, University of Mysore, Manasagangotri, Mysuru, 570 006, India; Department of Studies and Research in Biochemistry, Tumkur University, Tumakuru, 572 103, India.
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24
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Lazarova D, Semkova S, Zlateva G, Tatsuya H, Aoki I, Bakalova R. Quantum Sensors To Track Total Redox-Status and Oxidative Stress in Cells and Tissues Using Electron-Paramagnetic Resonance, Magnetic Resonance Imaging, and Optical Imaging. Anal Chem 2021; 93:2828-2837. [DOI: 10.1021/acs.analchem.0c04116] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Dessislava Lazarova
- Faculty of Medicine, Sofia University “St. Kliment Ohridski”, 1 Koziak Str., Sofia 1407, Bulgaria
| | - Severina Semkova
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 21 Acad. G. Bonchev Str., Sofia 1113, Bulgaria
| | - Genoveva Zlateva
- Faculty of Medicine, Sofia University “St. Kliment Ohridski”, 1 Koziak Str., Sofia 1407, Bulgaria
| | - Higashi Tatsuya
- Department of Molecular Imaging and Theranostics, National Institutes for Quantum and Radiological Science and Technology (QST/NIRS), 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Ichio Aoki
- Department of Molecular Imaging and Theranostics, National Institutes for Quantum and Radiological Science and Technology (QST/NIRS), 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Rumiana Bakalova
- Department of Molecular Imaging and Theranostics, National Institutes for Quantum and Radiological Science and Technology (QST/NIRS), 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
- Faculty of Medicine, Sofia University “St. Kliment Ohridski”, 1 Koziak Str., Sofia 1407, Bulgaria
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25
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Duanghathaipornsuk S, Farrell EJ, Alba-Rubio AC, Zelenay P, Kim DS. Detection Technologies for Reactive Oxygen Species: Fluorescence and Electrochemical Methods and Their Applications. BIOSENSORS 2021; 11:30. [PMID: 33498809 PMCID: PMC7911324 DOI: 10.3390/bios11020030] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 01/12/2021] [Accepted: 01/19/2021] [Indexed: 12/15/2022]
Abstract
Reactive oxygen species (ROS) have been found in plants, mammals, and natural environmental processes. The presence of ROS in mammals has been linked to the development of severe diseases, such as diabetes, cancer, tumors, and several neurodegenerative conditions. The most common ROS involved in human health are superoxide (O2•-), hydrogen peroxide (H2O2), and hydroxyl radicals (•OH). Organic and inorganic molecules have been integrated with various methods to detect and monitor ROS for understanding the effect of their presence and concentration on diseases caused by oxidative stress. Among several techniques, fluorescence and electrochemical methods have been recently developed and employed for the detection of ROS. This literature review intends to critically discuss the development of these techniques to date, as well as their application for in vitro and in vivo ROS detection regarding free-radical-related diseases. Moreover, important insights into and further steps for using fluorescence and electrochemical methods in the detection of ROS are presented.
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Affiliation(s)
| | - Eveline J Farrell
- Department of Chemical Engineering, The University of Toledo, Toledo, OH 43606, USA
| | - Ana C Alba-Rubio
- Department of Chemical Engineering, The University of Toledo, Toledo, OH 43606, USA
| | - Piotr Zelenay
- Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - Dong-Shik Kim
- Department of Chemical Engineering, The University of Toledo, Toledo, OH 43606, USA
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26
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Park YE, Noh Y, Kim DW, Lee TK, Ahn JH, Kim B, Lee JC, Park CW, Park JH, Kim JD, Kim YM, Kang IJ, Lee JW, Kim SS, Won MH. Experimental pretreatment with YES-10 ®, a plant extract rich in scutellarin and chlorogenic acid, protects hippocampal neurons from ischemia/reperfusion injury via antioxidant role. Exp Ther Med 2021; 21:183. [PMID: 33488792 PMCID: PMC7812581 DOI: 10.3892/etm.2021.9614] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 12/08/2020] [Indexed: 12/13/2022] Open
Abstract
Erigeron annuus (L.) PERS. (EALP) and Clematis mandshurica RUPR. (CMR) have been used in traditional remedies due to their medicinal effects. Recently, we reported that pretreatment with 200 mg/kg of YES-10® (a combination of extracts from leaves of EALP and CMR) displayed neuroprotective effects against brain ischemia and reperfusion injury. The present study analyzed the major ingredients of YES-10® and investigated whether neuroprotection from YES-10® was dependent upon antioxidant effects in the cornu ammonis 1 (CA1) field in the gerbil hippocampus, after transient forebrain ischemia for 5 min. YES-10® was demonstrated to predominantly contain scutellarin and chlorogenic acid. Pretreatment with YES-10® significantly increased protein levels and the immunoreactivity of copper/zinc-superoxide dismutase (SOD1) and manganese-superoxide dismutase (SOD2) was in the pyramidal neurons of the hippocampal CA1 field when these were examined prior to transient ischemia induction. The increased SODs in CA1 pyramidal neurons following YES-10® treatment were maintained after ischemic injury. In this case, the CA1 pyramidal neurons were protected from ischemia-reperfusion injury. Oxidative stress was significantly attenuated in the CA1 pyramidal neurons, and this was determined by 4-hydroxy-2-nonenal immunohistochemistry and dihydroethidium histofluorescence staining. Taken together, the results indicated that YES-10® significantly attenuated transient ischemia-induced oxidative stress and may be utilized for developing a protective agent against ischemic insults.
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Affiliation(s)
- Young Eun Park
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Yoohun Noh
- Department of Anatomy and Cell Biology and Neurology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea.,Famenity Co., Ltd., Uiwang, Gyeonggi 16006, Republic of Korea
| | - Dae Won Kim
- Department of Biochemistry and Molecular Biology and Research Institute of Oral Sciences, College of Dentistry, Gangnung-Wonju National University, Gangneung, Gangwon 25457, Republic of Korea
| | - Tae-Kyeong Lee
- Department of Biomedical Science and Research Institute for Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon 24252, Republic of Korea
| | - Ji Hyeon Ahn
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea.,Department of Physical Therapy, College of Health Science, Youngsan University, Yangsan, Gyeongnam 50510, Republic of Korea
| | - Bora Kim
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Jae-Chul Lee
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Cheol Woo Park
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Joon Ha Park
- Department of Anatomy, College of Korean Medicine, Dongguk University, Gyeongju, Gyeongbuk 38066, Republic of Korea
| | - Jong Dai Kim
- Division of Food Biotechnology, School of Biotechnology, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Young-Myeong Kim
- Department of Molecular and Cellular Biochemistry, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Il Jun Kang
- Department of Food Science and Nutrition, Hallym University, Chuncheon, Gangwon 24252, Republic of Korea
| | - Ji-Won Lee
- Famenity Co., Ltd., Uiwang, Gyeonggi 16006, Republic of Korea
| | - Sung-Su Kim
- Famenity Co., Ltd., Uiwang, Gyeonggi 16006, Republic of Korea
| | - Moo-Ho Won
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
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27
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Chapman JM, Muday GK. Flavonols modulate lateral root emergence by scavenging reactive oxygen species in Arabidopsis thaliana. J Biol Chem 2021; 296:100222. [PMID: 33839683 PMCID: PMC7948594 DOI: 10.1074/jbc.ra120.014543] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 12/19/2020] [Accepted: 12/21/2020] [Indexed: 11/20/2022] Open
Abstract
Flavonoids are a class of specialized metabolites with subclasses including flavonols and anthocyanins, which have unique properties as antioxidants. Flavonoids modulate plant development, but whether and how they impact lateral root development is unclear. We examined potential roles for flavonols in this process using Arabidopsis thaliana mutants with defects in genes encoding key enzymes in flavonoid biosynthesis. We observed the tt4 and fls1 mutants, which produce no flavonols, have increased lateral root emergence. The tt4 root phenotype was reversed by genetic and chemical complementation. To more specifically define the flavonoids involved, we tested an array of flavonoid biosynthetic mutants, eliminating roles for anthocyanins and the flavonols quercetin and isorhamnetin in modulating lateral root development. Instead, two tt7 mutant alleles, with defects in a branchpoint enzyme blocking quercetin biosynthesis, formed reduced numbers of lateral roots and tt7-2 had elevated levels of kaempferol. Using a flavonol-specific dye, we observed that in the tt7-2 mutant, kaempferol accumulated within lateral root primordia at higher levels than wild-type. These data are consistent with kaempferol, or downstream derivatives, acting as a negative regulator of lateral root emergence. We examined ROS accumulation using ROS-responsive probes and found reduced fluorescence of a superoxide-selective probe within the primordia of tt7-2 compared with wild-type, but not in the tt4 mutant, consistent with opposite effects of these mutants on lateral root emergence. These results support a model in which increased level of kaempferol in the lateral root primordia of tt7-2 reduces superoxide concentration and ROS-stimulated lateral root emergence.
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Affiliation(s)
- Jordan M Chapman
- Biology Department, Wake Forest University, Winston Salem, North Carolina, USA
| | - Gloria K Muday
- Biology Department, Wake Forest University, Winston Salem, North Carolina, USA.
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28
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Wu M, Liu Z, Zhang W. An ultra-stable bio-inspired bacteriochlorin analogue for hypoxia-tolerant photodynamic therapy. Chem Sci 2020; 12:1295-1301. [PMID: 34163892 PMCID: PMC8179026 DOI: 10.1039/d0sc05525e] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 11/25/2020] [Indexed: 12/13/2022] Open
Abstract
Photodynamic therapy (PDT) greatly suffers from the weak NIR-absorption, oxygen dependence and poor stability of photosensitizers (PSs). Herein, inspired by natural bacteriochlorin, we develop a bacteriochlorin analogue, tetrafluorophenyl bacteriochlorin (FBC), by one-step reduction of tetrafluorophenyl porphyrin (TFPP). FBC can realize deep tissue penetration, benefitting from the strong NIR absorption. The reactive oxygen species (ROS) generation capacity of FBC can retain around 60% with a 1.0 cm-thick pork skin as the barrier. Besides, FBC could not only produce oxygen-dependent 1O2, but also generate less oxygen-dependent O2 -˙ and ˙OH to achieve excellent PDT even in hypoxic tumors. Moreover, FBC exhibits an ultra-high stability and it is almost unchanged even under visible light at room temperature for 15 months. Interestingly, the high reactivity of the fluorophenyl group makes it easy for FBC to produce FBC derivatives. A biocompatible FBC nanogel could be directly formed by blending FBC with SH-PEG-SH. The FBC nanogel displays excellent photodynamic efficacy in vitro and in vivo. Thus, FBC would be a promising PS for the clinical PDT of deep tumors.
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Affiliation(s)
- Mengsi Wu
- Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology 130 Meilong Road Shanghai 200237 China
| | - Zhiyong Liu
- Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology 130 Meilong Road Shanghai 200237 China
| | - Weian Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology 130 Meilong Road Shanghai 200237 China
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29
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Scariot FJ, Foresti L, Delamare APL, Echeverrigaray APLS. Activity of monoterpenoids on the in vitro growth of two Colletotrichum species and the mode of action on C. acutatum. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2020; 170:104698. [PMID: 32980053 DOI: 10.1016/j.pestbp.2020.104698] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 08/28/2020] [Accepted: 08/30/2020] [Indexed: 06/11/2023]
Abstract
Essential oils and their main compounds, monoterpenoids, are considered as alternative control systems for phytopathogenic fungi, particularly those related to late diseases of fruits and vegetables, like anthracnose caused by Colletotrichum species. In this context, we studied the effect of twenty monoterpenoids on Colletotrichum fructicola and C. acutatum to elucidate their effectiveness and mechanisms of action. Thus, we analyzed mycelial growth and conidial inhibitory concentration, as well as the effect of selected monoterpenoids on membrane integrity and cell vitality, reactive oxygen species (ROS) accumulation, and mitochondrial membrane potential by flow cytometry. The results showed that oxygenated monoterpenoids (alcohols and aldehydes) exhibited higher antifungal activity than their corresponding hydrocarbons, esters, and cyclic counterparts. Indicating that OH- and O- radicals react with cellular components affecting fungal homeostasis. In this sense, selected monoterpenoids (citral, citronellol, geraniol, carvacrol, and thymol) inhibited conidial germination of C. acutatum in a dose-dependent manner. The inhibition of conidial germination is associated with a loss of membrane integrity, a decrease of cell metabolism, and a dose-dependent accumulation of ROS, which was non-directly associated with modifications on mitochondrial membrane potential. Membrane dysfunction and ROS accumulation may be responsible for the necrotic behavior induced by high monoterpenoids concentrations, and possible apoptotic response in sub dosages of these compounds.
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Affiliation(s)
- Fernando J Scariot
- Institute of Biotechnology, University of Caxias do Sul, Rio Grande do Sul, Brazil.
| | - Luciano Foresti
- Institute of Biotechnology, University of Caxias do Sul, Rio Grande do Sul, Brazil
| | - Ana Paula L Delamare
- Institute of Biotechnology, University of Caxias do Sul, Rio Grande do Sul, Brazil
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30
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Experimental Pretreatment with Chlorogenic Acid Prevents Transient Ischemia-Induced Cognitive Decline and Neuronal Damage in the Hippocampus through Anti-Oxidative and Anti-Inflammatory Effects. Molecules 2020; 25:molecules25163578. [PMID: 32781658 PMCID: PMC7463954 DOI: 10.3390/molecules25163578] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/03/2020] [Accepted: 08/05/2020] [Indexed: 12/17/2022] Open
Abstract
Chlorogenic acid (CGA), an ester of caffeic acid and quinic acid, is among the phenolic acid compounds which can be naturally found in green coffee extract and tea. CGA has been studied since it displays significant pharmacological properties. The aim of this study was to investigate the effects of CGA on cognitive function and neuroprotection including its mechanisms in the hippocampus following transient forebrain ischemia in gerbils. Memory and learning following the ischemia was investigated by eight-arm radial maze and passive avoidance tests. Neuroprotection was examined by immunohistochemistry for neuronal nuclei-specific protein and Fluoro-Jade B histofluorescence staining. For mechanisms of the neuroprotection, alterations in copper, zinc-superoxide dismutase (SOD1), SOD2 as antioxidant enzymes, dihydroethidium and 4-hydroxy-2-nonenal as indicators for oxidative stress, and anti-inflammatory cytokines (interleukin (IL)-4 and IL-13) and pro-inflammatory cytokines (tumor necrosis factor α (TNF-α) and IL-2) were examined by Western blotting and/or immunohistochemistry. As a result, pretreatment with 30 mg/kg CGA attenuated cognitive impairment and displayed a neuroprotective effect against transient forebrain ischemia (TFI). In Western blotting, the expression levels of SOD2 and IL-4 were increased due to pretreatment with CGA and, furthermore, 4-HNE production and IL-4 expressions were inhibited by CGA pretreatment. Additionally, pretreated CGA enhanced antioxidant enzymes and anti-inflammatory cytokines and, in contrast, attenuated oxidative stress and pro-inflammatory cytokine expression. Based on these results, we suggest that CGA can be a useful neuroprotective material against ischemia-reperfusion injury due to its antioxidant and anti-inflammatory efficacies.
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31
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Xu N, Jiang S, Persson PB, Persson EAG, Lai EY, Patzak A. Reactive oxygen species in renal vascular function. Acta Physiol (Oxf) 2020; 229:e13477. [PMID: 32311827 DOI: 10.1111/apha.13477] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 03/22/2020] [Accepted: 04/14/2020] [Indexed: 12/14/2022]
Abstract
Reactive oxygen species (ROS) are produced by the aerobic metabolism. The imbalance between production of ROS and antioxidant defence in any cell compartment is associated with cell damage and may play an important role in the pathogenesis of renal disease. NADPH oxidase (NOX) family is the major ROS source in the vasculature and modulates renal perfusion. Upregulation of Ang II and adenosine activates NOX via AT1R and A1R in renal microvessels, leading to superoxide production. Oxidative stress in the kidney prompts renal vascular remodelling and increases preglomerular resistance. These are key elements in hypertension, acute and chronic kidney injury, as well as diabetic nephropathy. Renal afferent arterioles (Af), the primary resistance vessel in the kidney, fine tune renal hemodynamics and impact on blood pressure. Vice versa, ROS increase hypertension and diabetes, resulting in upregulation of Af vasoconstriction, enhancement of myogenic responses and change of tubuloglomerular feedback (TGF), which further promotes hypertension and diabetic nephropathy. In the following, we highlight oxidative stress in the function and dysfunction of renal hemodynamics. The renal microcirculatory alterations brought about by ROS importantly contribute to the pathophysiology of kidney injury, hypertension and diabetes.
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Affiliation(s)
- Nan Xu
- Department of Physiology Zhejiang University School of Medicine Hangzhou China
| | - Shan Jiang
- Department of Physiology Zhejiang University School of Medicine Hangzhou China
| | - Pontus B. Persson
- Charité ‐ Universitätsmedizin Berlin Corporate Member of Freie Universität Berlin Humboldt‐Universität zu Berlin, and Berlin Institute of Health Institute of Vegetative Physiology Berlin Germany
| | | | - En Yin Lai
- Department of Physiology Zhejiang University School of Medicine Hangzhou China
- Charité ‐ Universitätsmedizin Berlin Corporate Member of Freie Universität Berlin Humboldt‐Universität zu Berlin, and Berlin Institute of Health Institute of Vegetative Physiology Berlin Germany
| | - Andreas Patzak
- Charité ‐ Universitätsmedizin Berlin Corporate Member of Freie Universität Berlin Humboldt‐Universität zu Berlin, and Berlin Institute of Health Institute of Vegetative Physiology Berlin Germany
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An Insight on the Role of Nitric Oxide in Yeast Apoptosis of Curcumin-Treated Candida albicans. Curr Microbiol 2020; 77:3104-3113. [PMID: 32719888 DOI: 10.1007/s00284-020-02132-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 07/14/2020] [Indexed: 10/23/2022]
Abstract
Nitric Oxide (NO) is a widely studied molecule due to its diverse biological functions. One of its activities, induction of apoptosis, is currently an area of active investigation in mammalian cells. However, there exists little information regarding the role of NO in yeast apoptosis. In an effort to investigate the mode of action by which NO induces programmed cell death in Candida albicans, we conducted a study on curcumin, a major bioactive compound, which is known as a potential apoptosis-inducing material due to several of its biological activities. First, NO generation was evaluated upon curcumin treatment. It is widely known that NO production is closely tied to cellular respiration, which is regulated by mitochondria. An increase in NO concentration leads to the inhibition of respiration and mitochondrial dysfunction. The hallmarks of mitochondrial dysfunction include a decrease in mitochondrial membrane potential along with increased mitochondrial mass, calcium concentration and ROS generation. A specific oxidative ROS compound, superoxide ([Formula: see text]), is strongly reactive with NO to form peroxynitrite (ONOO-). ONOO- disturbs intracellular redox levels, decreasing the overall ratio of glutathione (GSH). This leads to oxidative damage in C. albicans, triggering lethal DNA damage that eventually results in apoptosis. In the present study, a nitric oxide synthase (NOS) inhibitor, L-NG-Nitroarginine Methyl Ester (L-NAME), was used in each experiment. In all experiments, L-NAME pre-treatment of cells blocked the effects induced by curcumin, which indicates that nitric oxide is a component of the overall mechanism. In conclusion, NO account for an indispensable position in apoptosis of curcumin-treated C. albicans.
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OXPHOS bioenergetic compensation does not explain disease penetrance in Leber hereditary optic neuropathy. Mitochondrion 2020; 54:113-121. [PMID: 32687992 DOI: 10.1016/j.mito.2020.07.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 04/24/2020] [Accepted: 07/14/2020] [Indexed: 11/23/2022]
Abstract
Leber hereditary optic neuropathy (LHON) is one of the most common primary mitochondrial diseases. It is caused by point mutations in mitochondrial DNA (mtDNA) genes and in some cases, it can result in irreversible vision loss, primarily in young men. It is currently unknown why LHON mutations affect only some carriers and whether bioenergetic compensation enables unaffected carriers to overcome mitochondrial impairment and preserve cellular function. Here, we conducted bioenergetic metabolic assays and RNA sequencing to address this question using male-only, age-matched, m.11778G > A lymphoblasts and primary fibroblasts from both unaffected carriers and affected individuals. Our work indicates that OXPHOS bioenergetic compensation in LHON peripheral cells does not explain disease phenotype. We show that complex I impairment is similar in cells from unaffected carrier and affected patients, despite a transcriptional downregulation of metabolic pathways including glycolysis in affected cells relative to carriers detected by RNA sequencing. Although we did not detect OXPHOS bioenergetic compensation in carrier cells under basal conditions, our results indicate that cells from affected patients suffer a growth impairment under metabolic challenge compared to carrier cells, which were unaffected by metabolic challenge. If recapitulated in retinal ganglion cells, decreased susceptibility to metabolic challenge in unaffected carriers may help preserve metabolic homeostasis in the face of the mitochondrial complex I bioenergetic defect.
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Salam S, Arif A, Mahmood R. Thiram-induced cytotoxicity and oxidative stress in human erythrocytes: an in vitro study. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2020; 164:14-25. [PMID: 32284119 DOI: 10.1016/j.pestbp.2019.12.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 12/05/2019] [Accepted: 12/15/2019] [Indexed: 06/11/2023]
Abstract
Tetramethylthiuram disulfide, commonly known as thiram, is an organosulfur compound which is used as a bactericide, fungicide and ectoparasiticide to prevent disease in seeds and crops. Being a fungicide there is a high probability of human occupational exposure to thiram and also via consumption of contaminated food. In this work, the cytotoxicity of thiram was studied under in vitro conditions using human erythrocytes as the cellular model. Erythrocytes were incubated with different concentrations of thiram (25-500 μM) for 4 h at 37 °C. Control cells (thiram untreated) were similarly incubated at 37 °C. Whole cells and hemolysates were analyzed for various biochemical parameters. Treatment of erythrocytes with thiram increased protein and lipid oxidation and hydrogen peroxide level in hemolysates but decreased glutathione and total sulfhydryl group content. This was accompanied by hemoglobin oxidation, heme degradation and release of free iron. Activities of all major antioxidant enzymes were inhibited. The antioxidant power of thiram treated erythrocytes was lowered resulting in decreased metal reducing and free radical quenching ability. These results suggest that thiram enhances the generation of reactive species that cause oxidative modification of cell components. This was confirmed by experiments that showed enhanced generation of reactive oxygen and nitrogen species in thiram treated erythrocytes. Activities of marker enzymes of glucose metabolism and erythrocyte membrane were also inhibited. All effects were seen in a thiram concentration-dependent manner. Electron microscopy further supported the damaging effect of thiram on erythrocytes. Thus thiram induces oxidative stress condition in human erythrocytes and causes oxidative modification of cell components.
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Affiliation(s)
- Samreen Salam
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, U.P., India
| | - Amin Arif
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, U.P., India
| | - Riaz Mahmood
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh 202002, U.P., India.
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Jia P, Dai C, Cao P, Sun D, Ouyang R, Miao Y. The role of reactive oxygen species in tumor treatment. RSC Adv 2020; 10:7740-7750. [PMID: 35492191 PMCID: PMC9049915 DOI: 10.1039/c9ra10539e] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 02/12/2020] [Indexed: 12/14/2022] Open
Abstract
Reactive oxygen species (ROS) are by-products of aerobic metabolism and can also act as signaling molecules to participate in multiple regulation of biological and physiological processes. The occurrence, growth and metastasis of tumors, and even the apoptosis, necrosis and autophagy of tumor cells are all closely related to ROS. However, ROS levels in the body are usually maintained at a stable status. ROS produced by oxidative stress can cause damage to cell lipids, protein and DNA. In recent years, ROS have achieved satisfactory results on the treatment of tumors. Therefore, this review summarizes some research results of tumor treatments from the perspective of ROS in recent years, and analyzes how to achieve the mechanism of inhibition and treatment of tumors by ROS or how to affect the tumor microenvironment by influencing ROS. At the same time, the detection methods of ROS, problems encountered in the research process and solutions are also summarized. The purpose of this review is to provide a clearer understanding of the ROS role in tumor treatment, so that researchers might have more inspiration and thoughts for cancer prevention and treatment in the next stage. This review provides a clear understanding of the ROS role in tumor treatment and some thoughts for potential cancer prevention.![]()
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Affiliation(s)
- Pengpeng Jia
- Institute of Bismuth Science
- University of Shanghai for Science and Technology
- Shanghai 200093
- China
| | - Chenyu Dai
- Institute of Bismuth Science
- University of Shanghai for Science and Technology
- Shanghai 200093
- China
| | - Penghui Cao
- Institute of Bismuth Science
- University of Shanghai for Science and Technology
- Shanghai 200093
- China
| | - Dong Sun
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang 453007
- China
| | - Ruizhuo Ouyang
- Institute of Bismuth Science
- University of Shanghai for Science and Technology
- Shanghai 200093
- China
| | - Yuqing Miao
- Institute of Bismuth Science
- University of Shanghai for Science and Technology
- Shanghai 200093
- China
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Suwa K, Oyaizu K, Segawa H, Nishide H. Anti-Oxidizing Radical Polymer-Incorporated Perovskite Layers and their Photovoltaic Characteristics in Solar Cells. CHEMSUSCHEM 2019; 12:5207-5212. [PMID: 31625275 DOI: 10.1002/cssc.201901601] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 09/27/2019] [Indexed: 06/10/2023]
Abstract
A small amount of a radical-bearing redox-active polymer, poly(1-oxy-2,2,6,6-tetramethylpiperidin-4-yl methacrylate) (PTMA), incorporated into the photovoltaic organo-lead halide perovskite layer significantly enhanced durability of both the perovskite layer and its solar cell and even exposure to ambient air or oxygen. PTMA acted as an eliminating agent of the superoxide anion radical formed upon light irradiation on the layer, which can react with the perovskite compound and decompose it to lead halide. A cell fabricated with a PTMA-incorporated perovskite layer and a hole-transporting polytriarylamine layer gave a photovoltaic conversion efficiency of 18.8 % (18.2 % for the control without PTMA). The photovoltaic current was not reduced in the presence of PTMA in the perovskite layer probably owing to a carrier conductivity of PTMA. The incorporated PTMA also worked as a water-repelling coating for providing humidity-resistance to the organo-lead halide perovskite layer.
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Affiliation(s)
- Koki Suwa
- Department of Applied Chemistry and Research Institute for Science and Engineering, Waseda University, Tokyo, 169-8555, Japan
| | - Kenichi Oyaizu
- Department of Applied Chemistry and Research Institute for Science and Engineering, Waseda University, Tokyo, 169-8555, Japan
| | - Hiroshi Segawa
- Research Center for Advanced Science and Technology, The University of Tokyo, Tokyo, 153-8904, Japan
| | - Hiroyuki Nishide
- Department of Applied Chemistry and Research Institute for Science and Engineering, Waseda University, Tokyo, 169-8555, Japan
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Comparison of three analytical methods for superoxide produced by activated immune cells. J Pharmacol Toxicol Methods 2019; 101:106637. [PMID: 31678429 DOI: 10.1016/j.vascn.2019.106637] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 08/29/2019] [Accepted: 09/30/2019] [Indexed: 11/23/2022]
Abstract
Superoxide plays a key role in normal immune function and inflammatory diseases. In order to evaluate normal immune function or screen inhibitors of superoxide production for treating inflammatory diseases, it is very important to detect superoxide with good accuracy, sensitivity, and flexibility. In present study, we investigated three analysis methods of superoxide, colorimetric assay by WST-8, fluorescence assay by dihydroethidium and chemiluminescence assay by lucigenin, compared their precisions, specificities, sensitivities and time curve characteristics in superoxide analysis, and then validate their values in the screening of anti-inflammatory compounds. The results reveal that three analysis methods of superoxide all have good precisions and high specificities but have different sensitivities and time curve characteristics, which suggest their different applications. In addition, they can all be used in the screening of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase inhibitors and anti-inflammatory compounds.
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Akhtar MJ, Ahamed M, Alhadlaq HA, Kumar S, Alrokayan SA. Mitochondrial dysfunction, autophagy stimulation and non-apoptotic cell death caused by nitric oxide-inducing Pt-coated Au nanoparticle in human lung carcinoma cells. Biochim Biophys Acta Gen Subj 2019; 1864:129452. [PMID: 31676295 DOI: 10.1016/j.bbagen.2019.129452] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 09/30/2019] [Accepted: 10/14/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND Reactive oxygen species (ROS)-mediated cancer therapeutic has been at higher appreciation than those mediated by reactive nitrogen species. Cytotoxic mechanism of a novel nitric oxide (NO) inducing-Pt coated Au nanoparticle (NP) has been comparatively studied with the well-established ROS inducing Pt-based anticancer drug cisplatin in human lung A549 carcinoma cells. METHODS Cytotoxicity was evaluated by MTT assay, lactate dehydrogenase (LDH) release, thiobarbituric acid substances (TBARS) and C11-Boron dipyrromethene (BODIPY). ROS (O2·- and H2O2) was measured with dihydroethidium (DHE) and H2O2-specific sensor. Nitric oxide (NO) and mitochondrial dysfunction were evaluated respectively by NO-specific probe DAR-1 and JC-1. Autophagy was determined by lysotracker (LTR) and monodansylcadaverine (MDC) applied tandemly whereas apoptosis/necrosis by Hoechst/PI and caspase 3 activity. RESULTS IC50 (concentration that inhibited cell viability by 50%) of Pt coated Au NP came to be 0.413 μM whereas IC50 of cisplatin came out to 86.5 μM in A549 cells treated for 24 h meaning NPs toxicity was over 200 times higher than cisplatin. However, no significant stimulation of intracellular ROS was observed at the IC50 of Pt coated Au NPs in A549 cells. However, markers like LDH release, TBARS, BODIPY and ROS were significantly higher due to cisplatin in comparison to Pt coated Au NP. CONCLUSIONS Pt coated Au NP caused NO-dependent mitochondrial dysfunction and autophagy. Mode of cell death due to NP was much different from ROS-inducing cisplatin. GENERAL SIGNIFICANCE Pt coated Au NP offer promising opportunity in cancer therapeutic and warrants advanced study in vivo models of cancer.
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Affiliation(s)
- Mohd Javed Akhtar
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Maqusood Ahamed
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia
| | - Hisham A Alhadlaq
- Department of Physics and Astronomy, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - Sudhir Kumar
- Department of Zoology, University of Lucknow, Lucknow 226007, UP, India
| | - Salman A Alrokayan
- Department of Biochemistry, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia
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Nair RR, Sharan D, Ajitkumar P. A Minor Subpopulation of Mycobacteria Inherently Produces High Levels of Reactive Oxygen Species That Generate Antibiotic Resisters at High Frequency From Itself and Enhance Resister Generation From Its Major Kin Subpopulation. Front Microbiol 2019; 10:1842. [PMID: 31456773 PMCID: PMC6700507 DOI: 10.3389/fmicb.2019.01842] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 07/26/2019] [Indexed: 12/17/2022] Open
Abstract
Antibiotic-exposed bacteria produce elevated levels of reactive oxygen species (ROS), to which either they succumb or get mutated genome-wide to generate antibiotic resisters. We recently showed that mycobacterial cultures contained two subpopulations, short-sized cells (SCs; ∼10%) and normal/long-sized cells (NCs; ∼90%). The SCs were significantly more antibiotic-susceptible than the NCs. It implied that the SCs might naturally be predisposed to generate significantly higher levels of ROS than the NCs. This in turn could make the SCs more susceptible to antibiotics or generate more resisters as compared to the NCs. Investigation into this possibility showed that the SCs in the actively growing mid-log phase culture naturally generated significantly high levels of superoxide, as compared to the equivalent NCs, due to the naturally high expression of a specific NADH oxidase in the SCs. This caused labile Fe2+ leaching from 4Fe-4S proteins and elevated H2O2 formation through superoxide dismutation. Thus, the SCs of both Mycobacterium smegmatis and Mycobacterium tuberculosis inherently contained significantly higher levels of H2O2 and labile Fe2+ than the NCs. This in turn produced significantly higher levels of hydroxyl radical through Fenton reaction, promoting enhanced antibiotic resister generation from the SCs than from the NCs. The SCs, when mixed back with the NCs, at their natural proportion in the actively growing mid-log phase culture, enhanced antibiotic resister generation from the NCs, to a level equivalent to that from the unfractionated whole culture. The enhanced antibiotic resister generation from the NCs in the reconstituted SCs-NCs natural mixture was found to be due to the high levels of H2O2 secreted by the SCs. Thus, the present work unveils and documents the metabolic designs of two mycobacterial subpopulations where one subpopulation produces high ROS levels, despite higher susceptibility, to generate significantly higher number of antibiotic resisters from itself and to enhance resister generation from its kin subpopulation. These findings show the existence of an inherent natural mechanism in both the non-pathogenic and pathogenic mycobacteria to generate antibiotic resisters. The presence of the SCs and the NCs in the pulmonary tuberculosis patients’ sputum, reported by us earlier, alludes to the clinical significance of the study.
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Affiliation(s)
- Rashmi Ravindran Nair
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru, India
| | - Deepti Sharan
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru, India
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Das S, Wikström P, Walum E, Lovicu FJ. A novel NADPH oxidase inhibitor targeting Nox4 in TGFβ-induced lens epithelial to mesenchymal transition. Exp Eye Res 2019; 185:107692. [DOI: 10.1016/j.exer.2019.107692] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/08/2019] [Accepted: 06/08/2019] [Indexed: 02/06/2023]
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Patra SK, Samaddar S, Sinha N, Ghosh S. Reactive nitrogen species induced catalases promote a novel nitrosative stress tolerance mechanism in Vibrio cholerae. Nitric Oxide 2019; 88:35-44. [PMID: 30981896 DOI: 10.1016/j.niox.2019.04.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 03/04/2019] [Accepted: 04/09/2019] [Indexed: 11/18/2022]
Abstract
Vibrio cholerae faces nitrosative stress during successful colonization in intestine. Very little information is available on the nitrosative stress protective mechanisms of V. cholerae. Reports show that NorR regulon control two genes hmpA and nnrS responsible for nitric oxide (NO) detoxification in V. cholerae. In the present study we first time report a novel role of V. cholerae catalases under nitrosative stress. Using zymogram analysis of catalase we showed that KatB and KatG activity were induced within 30 min in V. cholerae in the presence of sodium nitroprusside (SNP), a NO donor compound. Surprisingly, V. cholerae cell survival was found to be decreased under nitrosative stress if catalase activities were blocked by ATz, a catalase inhibitor. Flow cytometry study was conducted to detect reactive oxygen species (ROS) and reactive nitrogen species (RNS) using DHE and DHR123, fluorescent probes respectively. Short exposure of SNP to V. cholerae did not generate ROS but RNS was detectable within 30 min. Total glutathione content was increased in V. cholerae cells under nitrosative stress. Furthermore, Superoxide dismutase (SOD) and Glutathione reductase (GR) activities remained unchanged under nitrosative stress in V. cholerae indicated antioxidant role of NO which could produce peroxynitrite. To investigate the role of catalase induction under nitrosative stress in V. cholerae, we conducted peroxynitrite reductase assay using cell lysates. Interestingly, SNP treated V. cholerae cell lysates showed lowest DHR123 oxidation compared to the control set. The extent of DHR123 oxidation was more in V. cholerae cell lysate when catalases were blocked by ATz.
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Affiliation(s)
- Sourav Kumar Patra
- Department of Biochemistry, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700019, West Bengal, India
| | - Sourabh Samaddar
- Bose Institute, P-1/12, CIT Road Scheme VIIM, Kolkata, 700 054, West Bengal, India
| | - Nilanjan Sinha
- Department of Biochemistry, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700019, West Bengal, India
| | - Sanjay Ghosh
- Department of Biochemistry, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, 700019, West Bengal, India.
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Zheng W, Pan H, Wei L, Gao F, Lin X. Dulaglutide mitigates inflammatory response in fibroblast-like synoviocytes. Int Immunopharmacol 2019; 74:105649. [PMID: 31185450 DOI: 10.1016/j.intimp.2019.05.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 05/16/2019] [Accepted: 05/17/2019] [Indexed: 11/17/2022]
Abstract
Rheumatoid arthritis is a common autoimmune disease primarily characterized by chronic inflammation, the formation of an invasive pannus, and destruction of the joints. In the present study, we employed real-time PCR and western blot analysis to investigate the role of dulaglutide in human fibroblast-like synoviocytes (FLS). The results of our study show that dulaglutide exerted a powerful protective effect by rescuing mitochondrial membrane potential, inhibiting the production of NOX-4, and abrogating TNF-α-induced downregulation of the antioxidant GSH. Our findings demonstrate that dulaglutide significantly ameliorated the expression of proinflammatory cytokines and chemokines including IL-1β, IL-6, MCP-1, and HMGB-1. Matrix metalloproteinases mediate cartilage destruction, thereby aiding in pannus formation. Our findings indicate that dulaglutide treatment significantly downregulated the expression of MMP-3 and MMP-13, two crucial degradative enzymes. Importantly, the results of our study demonstrate that the beneficial effects of dulaglutide are mediated through the JNK/NF-κB signaling pathway, which has been suggested as a potential treatment target against RA. Taken together, the results of this study show that dulaglutide may exert significant protective effects against the progression of RA induced by TNF-α.
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Affiliation(s)
- Weizhuo Zheng
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Haile Pan
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Li Wei
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Feng Gao
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China
| | - Xiaozong Lin
- Department of Orthopedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang, China.
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Nair RR, Sharan D, Sebastian J, Swaminath S, Ajitkumar P. Heterogeneity of ROS levels in antibiotic-exposed mycobacterial subpopulations confers differential susceptibility. MICROBIOLOGY-SGM 2019; 165:668-682. [PMID: 31091187 DOI: 10.1099/mic.0.000797] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Phenotypically heterogeneous but genetically identical mycobacterial subpopulations exist in in vitro cultures, in vitro-infected macrophages, infected animal models and tuberculosis patients. In this regard, we recently reported the presence of two subpopulations of cells, which are phenotypically different in length and buoyant density, in mycobacterial cultures. These are the low-buoyant-density short-sized cells (SCs), which constitute ~10-20 % of the population, and the high-buoyant-density normal/long-sized cells (NCs), which form ~80-90 % of the population. The SCs were found to be significantly more susceptible to rifampicin (RIF), isoniazid (INH), H2O2 and acidified nitrite than the NCs. Here we report that the RIF-/INH-/H2O2-exposed SCs showed significantly higher levels of oxidative stress and therefore higher susceptibility than the equivalent number of exposed NCs. Significantly higher levels of hydroxyl radical and superoxide were found in the antibiotic-exposed SCs than in the equivalently exposed NCs. Different proportions of the subpopulation of SCs were found to have different levels of reactive oxygen species (ROS). The hydroxyl radical quencher, thiourea, and the superoxide dismutase mimic, TEMPOL, significantly reduced hydroxyl radical and superoxide levels, respectively, in the antibiotic-exposed SCs and NCs and thereby decreased their differential susceptibility to antibiotics. Thus, the present study shows that the heterogeneity of the reactive oxygen species (ROS) levels in these mycobacterial subpopulations confers differential susceptibility to antibiotics. We have discussed the possible mechanisms that can generate differential ROS levels in the antibiotic-exposed SCs and NCs. The present study advances our current understanding of the molecular mechanisms underlying antibiotic tolerance in mycobacteria.
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Affiliation(s)
- Rashmi Ravindran Nair
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore - 560012, Karnataka, India
| | - Deepti Sharan
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore - 560012, Karnataka, India
| | - Jees Sebastian
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore - 560012, Karnataka, India
| | - Sharmada Swaminath
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore - 560012, Karnataka, India
| | - Parthasarathi Ajitkumar
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore - 560012, Karnataka, India
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"Redox Imaging" to Distinguish Cells with Different Proliferative Indexes: Superoxide, Hydroperoxides, and Their Ratio as Potential Biomarkers. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:6373685. [PMID: 31089411 PMCID: PMC6476105 DOI: 10.1155/2019/6373685] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 11/12/2018] [Accepted: 01/09/2019] [Indexed: 01/11/2023]
Abstract
The present study was directed to the development of EPR methodology for distinguishing cells with different proliferative activities, using “redox imaging.” Three nitroxide radicals were used as redox sensors: (a) mito-TEMPO—cell-penetrating and localized mainly in the mitochondria; (b) methoxy-TEMPO—cell-penetrating and randomly distributed between the cytoplasm and the intracellular organelles; and (c) carboxy-PROXYL—nonpenetrating in living cells and evenly distributed in the extracellular environment. The experiments were conducted on eleven cell lines with different proliferative activities and oxidative capacities, confirmed by conventional analytical tests. The data suggest that cancer cells and noncancer cells are characterized by a completely different redox status. This can be analyzed by EPR spectroscopy using mito-TEMPO and methoxy-TEMPO, but not carboxy-PROXYL. The correlation analysis shows that the EPR signal intensity of mito-TEMPO in cell suspensions is closely related to the superoxide level. The described methodology allows the detection of overproduction of superoxide in living cells and their identification based on the intracellular redox status. The experimental data provide evidences about the role of superoxide and hydroperoxides in cell proliferation and malignancy.
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Xia IF, Cheung JS, Wu M, Wong KS, Kong HK, Zheng XT, Wong KH, Kwok KW. Dietary chitosan-selenium nanoparticle (CTS-SeNP) enhance immunity and disease resistance in zebrafish. FISH & SHELLFISH IMMUNOLOGY 2019; 87:449-459. [PMID: 30703551 DOI: 10.1016/j.fsi.2019.01.042] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 01/23/2019] [Accepted: 01/26/2019] [Indexed: 06/09/2023]
Abstract
Selenium (Se) is an essential micronutrient for human and animals. It plays an important role in antioxidative stress, selenoenzymes regulation and immunomodulation. In this study, two common immunostimulants chitosan (CTS) and Se were used to synthesize nanoparticles (CTS-SeNP). Immunomodulation of CTS-SeNP were explored in wild-type zebrafish (Danio rerio). Dietary supplementation of CTS-SeNP enhanced lysozyme activity, phagocytic respiratory burst as well as splenocytes proliferation stimulated by LPS and ConA. CTS-SeNP showed immunomodulation effect from 5 to 20 μg/g but the best outcome was observed at 10 μg/g. Immunomodulation effect were rapidly induced after 3-9d and can sustain to 60. The zebrafish fed with 10 μg/g CTS-SeNP also showed 26.7% higher survival rate than the control after intraperitoneal injection of common bacterium Aeromonas hydrophila. Our results suggested that CTS-SeNP is an effective immunostimulant to fish and has potential application in aquaculture.
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Affiliation(s)
- Ivan Fan Xia
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, PR China; Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Jacky St Cheung
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, PR China; Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Manhui Wu
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, PR China; Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Kwong-Sen Wong
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, PR China; Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Hang-Kin Kong
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, PR China; Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Xiao-Ting Zheng
- Key Laboratory of South China Sea Fisheries Resources Exploitation & Utilization, Ministry of Agriculture, Guangzhou, China
| | - Ka-Hing Wong
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, PR China; Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China.
| | - Kevin Wh Kwok
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, PR China; Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China.
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Approaches and Methods to Measure Oxidative Stress in Clinical Samples: Research Applications in the Cancer Field. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:1279250. [PMID: 30992736 PMCID: PMC6434272 DOI: 10.1155/2019/1279250] [Citation(s) in RCA: 195] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Accepted: 01/31/2019] [Indexed: 12/24/2022]
Abstract
Reactive oxygen species (ROS) are common by-products of normal aerobic cellular metabolism and play important physiological roles in intracellular cell signaling and homeostasis. The human body is equipped with antioxidant systems to regulate the levels of these free radicals and maintain proper physiological function. However, a condition known as oxidative stress (OS) occurs, when ROS overwhelm the body's ability to readily detoxify them. Excessive amounts of free radicals generated under OS conditions cause oxidative damage to proteins, lipids, and nucleic acids, severely compromising cell health and contributing to disease development, including cancer. Biomarkers of OS can therefore be exploited as important tools in the assessment of disease status in humans. In the present review, we discuss different approaches used for the evaluation of OS in clinical samples. The described methods are limited in their ability to reflect on OS only partially, revealing the need of more integrative approaches examining both pro- and antioxidant reactions with higher sensitivity to physiological/pathological alternations. We also provide an overview of recent findings of OS in patients with different types of cancer. Identification of OS biomarkers in clinical samples of cancer patients and defining their roles in carcinogenesis hold great promise in promoting the development of targeted therapeutic approaches and diagnostic strategies assessing disease status. However, considerable data variability across laboratories makes it difficult to draw general conclusions on the significance of these OS biomarkers. To our knowledge, no adequate comparison has yet been performed between different biomarkers and the methodologies used to measure them, making it difficult to conduct a meta-analysis of findings from different groups. A critical evaluation and adaptation of proposed methodologies available in the literature should therefore be undertaken, to enable the investigators to choose the most suitable procedure for each chosen biomarker.
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Burchfield SL, Bailey DC, Todt CE, Denney RD, Negga R, Fitsanakis VA. Acute exposure to a glyphosate-containing herbicide formulation inhibits Complex II and increases hydrogen peroxide in the model organism Caenorhabditis elegans. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2019; 66:36-42. [PMID: 30594848 PMCID: PMC6360103 DOI: 10.1016/j.etap.2018.12.019] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 12/22/2018] [Indexed: 05/20/2023]
Abstract
Glyphosate-based herbicides, such as Touchdown (TD) and Roundup, are among the most heavily-used herbicides in the world. While the active ingredient is generally considered non-toxic, the toxicity resulting from exposure to commercially-sold formulations is less clear. In many cases, cell cultures or various model organisms exposed to glyphosate formulations show toxicity and, in some cases, lethality. Using Caenorhabditis elegans, we assessed potential toxic mechanisms through which a highly-concentrated commercial formulation of TD promotes neurodegeneration. Following a 30-min treatment, we assayed mitochondrial electron transport chain function and reactive oxygen species (ROS) production. Initial oxygen consumption studies indicated general mitochondrial inhibition compared to controls (*p < 0.05). When Complex II activity was further assessed, inhibition was observed in all TD-treated groups (*p < 0.05). Complex IV activity, however, was not adversely affected by TD. This electron transport chain inhibition also resulted in reduced ATP levels (*p < 0.05). Furthermore, hydrogen peroxide levels, but not other ROS, were increased (*p < 0.05). Taken together, these data indicate that commercially-available formulations of TD may exert neurotoxicity through Complex II (succinate dehydrogenase) inhibition, decreased ATP levels, and increased hydrogen peroxide production.
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Affiliation(s)
- Shelbie L Burchfield
- Northeast Ohio Medical University Department of Pharmaceutical Sciences, 4209 State Route 44, PO Box 95 Rootstown, OH 44272, USA.
| | - Denise C Bailey
- King University, Department of Biology, 1350 King College Road, Bristol, TN 37620, USA.
| | - Callie E Todt
- King University, Department of Biology, 1350 King College Road, Bristol, TN 37620, USA.
| | - Rachel D Denney
- King University, Department of Biology, 1350 King College Road, Bristol, TN 37620, USA.
| | - Rekek Negga
- King University, Department of Biology, 1350 King College Road, Bristol, TN 37620, USA.
| | - Vanessa A Fitsanakis
- Northeast Ohio Medical University Department of Pharmaceutical Sciences, 4209 State Route 44, PO Box 95 Rootstown, OH 44272, USA.
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Domínguez-Luis MJ, Armas-González E, Herrera-García A, Arce-Franco M, Feria M, Vicente-Manzanares M, Martínez-Ruiz A, Sánchez-Madrid F, Díaz-González F. L-selectin expression is regulated by CXCL8-induced reactive oxygen species produced during human neutrophil rolling. Eur J Immunol 2018; 49:386-397. [PMID: 30443903 DOI: 10.1002/eji.201847710] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 09/21/2018] [Accepted: 10/29/2018] [Indexed: 12/11/2022]
Abstract
Neutrophils destroy invading microorganisms by phagocytosis by bringing them into contact with bactericidal substances, among which ROS are the most important. However, ROS also function as important physiological regulators of cellular signaling pathways. Here, we addressed the involvement of oxygen derivatives in the regulation of human neutrophil rolling, an essential component of the inflammatory response. Flow experiments using dihydroethidium-preloaded human neutrophils showed that these cells initiate an early production of intracellular ROS during the rolling phase of the adhesion cascade, a phenomenon that required cell rolling, and the interaction of the chemokine receptor CXCR2 with their ligand CXCL8. Flow cytometry experiments demonstrated that L-selectin shedding in neutrophils is triggered by ROS through an autocrine-paracrine mechanism. Preincubation of neutrophils with the NADPH oxidase complex inhibitor diphenyleniodonium chloride significantly increased the number of rolling neutrophils on endothelial cells. Interestingly, the same effect was observed when CXCL8 signaling was interfered using either a blocking monoclonal antibody or an inhibitor of its receptor. These findings indicate that, in response to CXCL8, neutrophils initiate ROS production during the rolling phase of the inflammatory response. This very early ROS production might participate in the modulation of the inflammatory response by inducing L-selectin shedding in neutrophils.
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Affiliation(s)
| | | | - Ada Herrera-García
- Servicio de Reumatología, Hospital Universitario de Canarias, La Laguna, Spain
| | - María Arce-Franco
- Servicio de Reumatología, Hospital Universitario de Canarias, La Laguna, Spain
| | - Manuel Feria
- Departamento de Farmacología, Facultad de Medicina, Universidad de La Laguna, La Laguna, Spain
| | | | - Antonio Martínez-Ruiz
- Servicio de Inmunología, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
- Centro de Investigaciones Biomedicas en Red en Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Francisco Sánchez-Madrid
- Servicio de Inmunología, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
- Centro de Investigaciones Biomedicas en Red en Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Federico Díaz-González
- Servicio de Reumatología, Hospital Universitario de Canarias, La Laguna, Spain
- Departamento de Medicina, Facultad de Medicina, Universidad de La Laguna, Tenerife, Spain
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49
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Belemnaba L, Ouédraogo S, Nitiéma M, Chataigneau T, Guissou IP, Schini-Kerth VB, Bucher B, Auger C. An aqueous extract of the Anogeissus leiocarpus bark (AEAL) induces the endothelium-dependent relaxation of porcine coronary artery rings involving predominantly nitric oxide. J Basic Clin Physiol Pharmacol 2018; 29:599-608. [PMID: 29723154 DOI: 10.1515/jbcpp-2017-0084] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 03/23/2018] [Indexed: 12/16/2022]
Abstract
BACKGROUND Anogeissus leiocarpus is a Sahel tree traditionally used by the residents of Burkina Faso for its antihypertensive properties. In this study, experiments were conducted to evaluate whether an aqueous extract of the Anogeissus leiocarpus (AEAL) trunk bark induces a vasorelaxant effect on porcine coronary artery rings and to investigate the underlying mechanism. METHODS AEAL-induced relaxations were assessed using porcine coronary artery rings suspended in organ chambers. The phosphorylation levels of Src, Akt and endothelial nitric oxide synthase (eNOS) were assessed in a primary endothelial cell culture by Western blot. The reactive oxygen species (ROS) formation was assessed using dihydroethidine. RESULTS In porcine coronary artery rings, AEAL at 0.1-300 μg/mL induced endothelium-dependent relaxations, which were inhibited in the presence of inhibitors of nitric oxide (NO) and the endothelium-derived hyperpolarization pathways. Moreover, the AEAL-induced NO-mediated relaxations were significantly reduced by the inhibitors of Src and PI3-kinase as well as by the membrane-permeant ROS scavengers. In cultured porcine coronary artery endothelial cells, treatment with AEAL is associated with an intracellular generation of ROS. Moreover, the AEAL induced the phosphorylations of Akt (Ser473), eNOS (Ser1177) and a transient phosphorylation of Src (Ser17) in a time-dependent manner. CONCLUSIONS These findings indicate that AEAL is a potent inducer of endothelium-dependent NO-mediated relaxations in porcine coronary arteries through the redox-sensitive Src/PI3-kinase/Akt pathway-dependent activation of eNOS.
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Affiliation(s)
- Lazare Belemnaba
- CNRST/IRSS/MEPHATRA-Ph, 03 BP 7192 Ouagadougou 03, Burkina Faso, West Africa
- UMR CNRS 7213, Laboratoire de Biophotonique et Pharmacologie, Faculté de Pharmacie Université de Strasbourg, Illkirch, France
- Institut de Recherche en Sciences de la Santé (IRSS/CNRST), Ouagadougou, Burkina Faso, West Africa, Phone: (00226) 78848155
| | - Sylvin Ouédraogo
- Institut de Recherche en Sciences de la Santé (IRSS/CNRST), Ouagadougou, Burkina Faso, West Africa
| | - Mathieu Nitiéma
- Institut de Recherche en Sciences de la Santé (IRSS/CNRST), Ouagadougou, Burkina Faso, West Africa
- Université Ouaga I Pr Joseph Ki-ZERBO, Ouagadougou, Burkina Faso, West Africa
| | - Thierry Chataigneau
- UMR CNRS 7213, Laboratoire de Biophotonique et Pharmacologie, Faculté de Pharmacie Université de Strasbourg, Illkirch, France
| | - Innocent Pierre Guissou
- Institut de Recherche en Sciences de la Santé (IRSS/CNRST), Ouagadougou, Burkina Faso, West Africa
- Université Ouaga I Pr Joseph Ki-ZERBO, Ouagadougou, Burkina Faso, West Africa
| | - Valérie B Schini-Kerth
- UMR CNRS 7213, Laboratoire de Biophotonique et Pharmacologie, Faculté de Pharmacie Université de Strasbourg, Illkirch, France
| | - Bernard Bucher
- UMR CNRS 7213, Laboratoire de Biophotonique et Pharmacologie, Faculté de Pharmacie Université de Strasbourg, Illkirch, France
| | - Cyril Auger
- UMR CNRS 7213, Laboratoire de Biophotonique et Pharmacologie, Faculté de Pharmacie Université de Strasbourg, Illkirch, France
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50
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Lee MS, Kim NW, Lee JE, Kim MG, Yin Y, Kim SY, Ko BS, Kim A, Lee JH, Lim SY, Lim DW, Kim SH, Park JW, Lim YT, Jeong JH. Targeted cellular delivery of robust enzyme nanoparticles for the treatment of drug-induced hepatotoxicity and liver injury. Acta Biomater 2018; 81:231-241. [PMID: 30240953 DOI: 10.1016/j.actbio.2018.09.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 08/31/2018] [Accepted: 09/15/2018] [Indexed: 01/07/2023]
Abstract
Direct delivery of proteins into cells has been considered an effective approach for treating the protein-related diseases. However, clinical use of proteins has still been limited due to their instability in the blood and poor membrane permeability. To achieve an efficient cellular delivery of the protein to target cells via a systemic administration, a multifunctional carrier system having desirable stability both in the blood stream and the cells, specific cell-targeting property and endosomal escape functions may be required. In this study, we prepared a catalytic nanoparticle containing an active enzyme by cross-tethering multiple superoxide dismutase (SOD) molecules with catechol-derivatized hyaluronic acid (HA). The permeable shell of hydrophilic HA chains effectively protects the enzyme from degradation in the blood after intravenous administration and provides an additional function for targeting hepatocytes expressing HA receptor (CD44). The structure and catalytic activity of the enzyme molecules in the nanoparticle were not significantly compromised in the nanoparticle. In addition, ultra-small calcium phosphate nanoparticles (USCaP, 2-5 nm) were crystalized and decorated on the surface of the nanoparticle for the efficient endosomal escape after cellular uptake. The SOD-containing nanoparticle fortified with USCaP was used for the treatment of acetaminophen (APAP)-induced fulminant hepatotoxicity and liver injury. The nanoparticle achieved the efficient hepatic cellular delivery of SOD via a systemic administration and resulted in efficient removal of reactive oxygen species (ROS) in the liver and remarkable improvement of APAP-induced hepatotoxicity and liver injury in animals. STATEMENT OF SIGNIFICANCE: Despite the enormous therapeutic potential, the intracellular delivery of proteins has been limited due to their poor membrane permeability and stability. In this study, we demonstrated an active enzyme-containing nanoparticle functionalized by hyaluronic acid and ultra-small size calcium phosphate nanoparticles (2-5 nm) for targeted cellular delivery of superoxide dismutase (SOD). The nanoparticle was designed to integrate all the essential functions, including serum stability, target specificity, and endosomal escape capability, for a systemic delivery of a therapeutic protein to the cells of the liver tissue. The intravenous administration of the nanoparticle efficiently removes reactive oxygen species (ROS) in the liver and remarkably improves the drug-induced hepatotoxicity and the progress of fulminant liver injury in an acetaminophen-overdose animal model.
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