1
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Jakubek P, Parchem K, Wieckowski MR, Bartoszek A. The Interplay between Endogenous and Foodborne Pro-Oxidants and Antioxidants in Shaping Redox Homeostasis. Int J Mol Sci 2024; 25:7827. [PMID: 39063068 PMCID: PMC11276820 DOI: 10.3390/ijms25147827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 07/11/2024] [Accepted: 07/16/2024] [Indexed: 07/28/2024] Open
Abstract
Oxidative stress has been known about in biological sciences for several decades; however, the understanding of this concept has evolved greatly since its foundation. Over the past years, reactive oxygen species, once viewed as solely deleterious, have become recognized as intrinsic components of life. In contrast, antioxidants, initially believed to be cure-all remedies, have failed to prove their efficacy in clinical trials. Fortunately, research on the health-promoting properties of antioxidants has been ongoing. Subsequent years showed that the former assumption that all antioxidants acted similarly was greatly oversimplified. Redox-active compounds differ in their chemical structures, electrochemical properties, mechanisms of action, and bioavailability; therefore, their efficacy in protecting against oxidative stress also varies. In this review, we discuss the changing perception of oxidative stress and its sources, emphasizing everyday-life exposures, particularly those of dietary origin. Finally, we posit that a better understanding of the physicochemical properties and biological outcomes of antioxidants is crucial to fully utilize their beneficial impact on health.
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Affiliation(s)
- Patrycja Jakubek
- Department of Food Chemistry, Technology and Biotechnology, Faculty of Chemistry, Gdańsk University of Technology, 80-233 Gdańsk, Poland;
- Laboratory of Mitochondrial Biology and Metabolism, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland;
| | - Karol Parchem
- Department of Food Chemistry, Technology and Biotechnology, Faculty of Chemistry, Gdańsk University of Technology, 80-233 Gdańsk, Poland;
| | - Mariusz R. Wieckowski
- Laboratory of Mitochondrial Biology and Metabolism, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland;
| | - Agnieszka Bartoszek
- Department of Food Chemistry, Technology and Biotechnology, Faculty of Chemistry, Gdańsk University of Technology, 80-233 Gdańsk, Poland;
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2
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Wei X, Reddy VS, Gao S, Zhai X, Li Z, Shi J, Niu L, Zhang D, Ramakrishna S, Zou X. Recent advances in electrochemical cell-based biosensors for food analysis: Strategies for sensor construction. Biosens Bioelectron 2024; 248:115947. [PMID: 38181518 DOI: 10.1016/j.bios.2023.115947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/18/2023] [Accepted: 12/19/2023] [Indexed: 01/07/2024]
Abstract
Owing to their advantages such as great specificity, sensitivity, rapidity, and possibility of noninvasive and real-time monitoring, electrochemical cell-based biosensors (ECBBs) have been a powerful tool for food analysis encompassing the areas of nutrition, flavor, and safety. Notably, the distinctive biological relevance of ECBBs enables them to mimic physiological environments and reflect cellular behaviors, leading to valuable insights into the biological function of target components in food. Compared with previous reviews, this review fills the current gap in the narrative of ECBB construction strategies. The review commences by providing an overview of the materials and configuration of ECBBs, including cell types, cell immobilization strategies, electrode modification materials, and electrochemical sensing types. Subsequently, a detailed discussion is presented on the fabrication strategies of ECBBs in food analysis applications, which are categorized based on distinct signal sources. Lastly, we summarize the merits, drawbacks, and application scope of these diverse strategies, and discuss the current challenges and future perspectives of ECBBs. Consequently, this review provides guidance for the design of ECBBs with specific functions and promotes the application of ECBBs in food analysis.
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Affiliation(s)
- Xiaoou Wei
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China; Department of Mechanical Engineering, National University of Singapore, Singapore 117575, Singapore
| | - Vundrala Sumedha Reddy
- Department of Mechanical Engineering, National University of Singapore, Singapore 117575, Singapore
| | - Shipeng Gao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Xiaodong Zhai
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Zhihua Li
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Jiyong Shi
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Lidan Niu
- Key Laboratory of Condiment Supervision Technology for State Market Regulation, Chongqing Institute for Food and Drug Control, Chongqing 401121, PR China
| | - Di Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China; Key Laboratory of Condiment Supervision Technology for State Market Regulation, Chongqing Institute for Food and Drug Control, Chongqing 401121, PR China.
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, National University of Singapore, Singapore 117575, Singapore.
| | - Xiaobo Zou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China.
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3
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Allison M, Caramés-Méndez P, Hofmann BJ, Pask CM, Phillips RM, Lord RM, McGowan PC. Cytotoxicity of Ruthenium(II) Arene Complexes Containing Functionalized Ferrocenyl β-Diketonate Ligands. Organometallics 2023; 42:1869-1881. [PMID: 37592952 PMCID: PMC10428205 DOI: 10.1021/acs.organomet.2c00553] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Indexed: 08/19/2023]
Abstract
The synthesis and characterization of 24 ruthenium(II) arene complexes of the type [(p-cym)RuCl(Fc-acac)] (where p-cym = p-cymene and Fc-acac = functionalized ferrocenyl β-diketonate ligands) are reported, including single-crystal X-ray diffraction for 21 new complexes. Chemosensitivity studies have been conducted against human pancreatic carcinoma (MIA PaCa-2), human colorectal adenocarcinoma p53-wildtype (HCT116 p53+/+) and normal human retinal epithelial cell lines (APRE-19). The most active complex, which contains a 2-furan-substituted ligand (4), is 5x more cytotoxic than the analogs 3-furan complex (5) against MIA PaCa-2. Several complexes were screened under hypoxic conditions and at shorter-time incubations, and their ability to damage DNA was determined by the comet assay. Compounds were also screened for their potential to inhibit the growth of both bacterial and fungal strains.
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Affiliation(s)
- Matthew Allison
- School
of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K.
| | - Pablo Caramés-Méndez
- School
of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K.
- Department
of Pharmacy, University of Huddersfield, Huddersfield HD1 3DH, U.K.
| | - Benjamin J. Hofmann
- School
of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, U.K.
| | - Christopher M. Pask
- School
of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K.
| | - Roger M. Phillips
- Department
of Pharmacy, University of Huddersfield, Huddersfield HD1 3DH, U.K.
| | - Rianne M. Lord
- School
of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, U.K.
- School
of Chemistry and Biosciences, University
of Bradford, Bradford BD7 1DP, U.K.
| | - Patrick C. McGowan
- School
of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K.
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4
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Tajahmadi S, Molavi H, Ahmadijokani F, Shamloo A, Shojaei A, Sharifzadeh M, Rezakazemi M, Fatehizadeh A, Aminabhavi TM, Arjmand M. Metal-organic frameworks: A promising option for the diagnosis and treatment of Alzheimer's disease. J Control Release 2023; 353:1-29. [PMID: 36343762 DOI: 10.1016/j.jconrel.2022.11.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 10/31/2022] [Accepted: 11/01/2022] [Indexed: 11/22/2022]
Abstract
Beta-amyloid (Aβ) peptide is one of the main characteristic biomarkers of Alzheimer's disease (AD). Previous clinical investigations have proposed that unusual concentrations of this biomarker in cerebrospinal fluid, blood, and brain tissue are closely associated with the AD progression. Therefore, the critical point of early diagnosis, prevention, and treatment of AD is to monitor the levels of Aβ. In view of the potential of metal-organic frameworks (MOFs) for diagnosing and treating the AD, much attention has been focused in recent years. This review discusses the latest advances in the applications of MOFs for the early diagnosis of AD via fluorescence and electrochemiluminescence (ECL) detection of AD biomarkers, fluorescence detection of the main metal ions in the brain (Zn2+, Cu2+, Mn2+, Fe3+, and Al3+) in addition to magnetic resonance imaging (MRI) of the Aβ plaques. The current challenges and future strategies for translating the in vitro applications of MOFs into in vivo diagnosis of the AD are discussed.
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Affiliation(s)
- Shima Tajahmadi
- Institute for Nanoscience and Nanotechnology (INST), Sharif University of Technology, Tehran, Iran
| | - Hossein Molavi
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran; Department of Chemistry, Institute for Advanced Studies in Basic Science (IASBS), Gava Zang, Zanjan 45137-66731, Iran
| | - Farhad Ahmadijokani
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, British Columbia V1V 1V7, Canada
| | - Amir Shamloo
- Institute for Nanoscience and Nanotechnology (INST), Sharif University of Technology, Tehran, Iran; Department of Mechanical Engineering, Sharif University of Technology, Azadi Ave., Tehran, Iran; Stem Cell and Regenerative Medicine Institute, Sharif University of Technology, Tehran 11155-9161, Iran.
| | - Akbar Shojaei
- Institute for Nanoscience and Nanotechnology (INST), Sharif University of Technology, Tehran, Iran; Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
| | - Mohammad Sharifzadeh
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mashallah Rezakazemi
- Faculty of Chemical and Materials Engineering, Shahrood University of Technology, Shahrood, Iran
| | - Ali Fatehizadeh
- Department of Environmental Health Engineering, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran; Environment Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Tejraj M Aminabhavi
- School of Advanced Sciences, KLE Technological University, Hubballi, Karnataka 580 031, India; School of Engineering, UPES, Bidholi, Dehradun, Uttarakhand 248 007, India.
| | - Mohammad Arjmand
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, British Columbia V1V 1V7, Canada.
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5
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Hidalgo T, Simón-Vázquez R, González-Fernández A, Horcajada P. Cracking the immune fingerprint of metal-organic frameworks. Chem Sci 2022; 13:934-944. [PMID: 35211258 PMCID: PMC8790785 DOI: 10.1039/d1sc04112f] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 11/02/2021] [Indexed: 12/14/2022] Open
Abstract
The human body is in a never-ending chess game against pathogens. When the immune system, our natural defence tool, is weakened, these organisms are able to escape, overcoming the body's contingency plan, which results in the body going into a pathological state. To overcome this checkmate status, emerging nanomedicines have been successfully employed as one of the best tactics for boosting the immune response, manipulating the body's defence tools for the specific recognition/elimination of pathological cells via the active ingredient delivery. However, the vast majority of these drug-delivery systems (DDS) are considered to be exclusively passive vehicles, with nanoscale metal-organic frameworks (nanoMOFs) attracting a great deal of attention due to their versatility and ability to carry and deliver exceptional drug payloads and to modulate their biological bypass. Nonetheless, their intrinsic immunogenicity character has been never addressed. Considering the immense possibilities that nanoMOFs offer as a treatment platform, the present study aimed to unveil the immunological fingerprint of MOFs, including an in-deep evaluation of the cellular oxidation balance, the inflammation and recruitment of immune cells and the precise Th1/Th2 cytokine profile that is triggered. This study aims to gain insights that will make more feasible the design of customized immune-active MOF nanoplatforms according to targeted diseases, as the next ace up immune system sleeve.
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Affiliation(s)
- T Hidalgo
- Advanced Porous Materials Unit (APMU), IMDEA Energy Institute Av. Ramón de la Sagra 3 28935 Móstoles-Madrid Spain
- Institut Lavoisier, UMR CNRS 8180, Université de Versailles Saint-Quentin-en-Yvelines 45 Av. des Etats-Unis 78035 Versailles Cedex France
| | - R Simón-Vázquez
- CINBIO, Immunology Group, Universidade de Vigo 36310 Vigo Spain
- Instituto de Investigación Sanitaria Galicia Sur (IIS Galicia Sur), SERGAS-UVIGO Spain
| | - A González-Fernández
- CINBIO, Immunology Group, Universidade de Vigo 36310 Vigo Spain
- Instituto de Investigación Sanitaria Galicia Sur (IIS Galicia Sur), SERGAS-UVIGO Spain
| | - P Horcajada
- Advanced Porous Materials Unit (APMU), IMDEA Energy Institute Av. Ramón de la Sagra 3 28935 Móstoles-Madrid Spain
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6
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David L, Kang J, Nicklay J, Dufresne C, Chen S. Identification of DIR1-Dependant Cellular Responses in Guard Cell Systemic Acquired Resistance. Front Mol Biosci 2022; 8:746523. [PMID: 34977152 PMCID: PMC8718647 DOI: 10.3389/fmolb.2021.746523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 11/15/2021] [Indexed: 11/23/2022] Open
Abstract
After localized invasion by bacterial pathogens, systemic acquired resistance (SAR) is induced in uninfected plant tissues, resulting in enhanced defense against a broad range of pathogens. Although SAR requires mobilization of signaling molecules via the plant vasculature, the specific molecular mechanisms remain elusive. The lipid transfer protein defective in induced resistance 1 (DIR1) was identified in Arabidopsis thaliana by screening for mutants that were defective in SAR. Here, we demonstrate that stomatal response to pathogens is altered in systemic leaves by SAR, and this guard cell SAR defense requires DIR1. Using a multi-omics approach, we have determined potential SAR signaling mechanisms specific for guard cells in systemic leaves by profiling metabolite, lipid, and protein differences between guard cells in the wild type and dir1-1 mutant during SAR. We identified two long-chain 18 C and 22 C fatty acids and two 16 C wax esters as putative SAR-related molecules dependent on DIR1. Proteins and metabolites related to amino acid biosynthesis and response to stimulus were also changed in guard cells of dir1-1 compared to the wild type. Identification of guard cell-specific SAR-related molecules may lead to new avenues of genetic modification/molecular breeding for disease-resistant plants.
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Affiliation(s)
- Lisa David
- Department of Biology, University of Florida, Gainesville, FL, United States.,University of Florida Genetics Institute (UFGI), Gainesville, FL, United States
| | - Jianing Kang
- Department of Biology, University of Florida, Gainesville, FL, United States.,University of Florida Genetics Institute (UFGI), Gainesville, FL, United States.,College of Life Science, Northeast Agricultural University, Harbin, China
| | - Josh Nicklay
- Thermo Fisher Scientific, Somerset, NJ, United States
| | - Craig Dufresne
- Thermo Training Institute, Thermo Fisher Scientific, West Palm Beach, FL, United States
| | - Sixue Chen
- Department of Biology, University of Florida, Gainesville, FL, United States.,University of Florida Genetics Institute (UFGI), Gainesville, FL, United States.,Plant Molecular and Cellular Biology Program, University of Florida, Gainesville, FL, United States.,Proteomics and Mass Spectrometry, Interdisciplinary Center for Biotechnology Research (ICBR), University of Florida, Gainesville, FL, United States
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7
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Zhang J, Han H, Zhang L, Wang T. Dietary bisdemethoxycurcumin supplementation attenuates lipopolysaccharide-induced damages on intestinal redox potential and redox status of broilers. Poult Sci 2021; 100:101061. [PMID: 33756250 PMCID: PMC8010859 DOI: 10.1016/j.psj.2021.101061] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 01/02/2021] [Accepted: 02/04/2021] [Indexed: 02/06/2023] Open
Abstract
This study was conducted to investigate the beneficial effects of bisdemethoxycurcumin (BDC) on growth performance, glutathione (GSH) redox potential, antioxidant enzyme defense, and gene expression in lipopolysaccharide (LPS)-challenged broilers. A total of 320, male, 1-day-old broilers were randomly assigned to 4 treatment groups including 8 replicates with 10 birds per cage in a 2 × 2 factorial arrangement: BDC supplementation (a basal diet with 0 or 150 mg/kg BDC) and LPS challenge (intraperitoneal injection of 1 mg/kg body weight saline or LPS at 16, 18, and 20 d of age). Results showed that dietary BDC supplementation prevented the LPS-induced decrease in ADG of broilers (P < 0.05). Compared to the saline-challenged group, LPS-challenged broilers showed higher jejunal and ileal malondialdehyde (MDA), protein carbonyl (PC), and 8-hydroxy-2'-deoxyguanosine (8-OHdG) contents (P < 0.05). Dietary BDC supplementation alleviated LPS-induced increases in jejunal 8-OHdG, ileal MDA, and PC contents (P < 0.05). LPS challenge impaired the small intestinal antioxidant system, as evident by the decreases of GSH and total thiol contents, as well as superoxide dismutase (SOD), glutathione peroxidase, glutathione reductase (GR), and glutathione S-transferase (GST) activities. On the other hand, LPS challenge also increased GSH redox potential and oxidized glutathione (GSSG) contents (P < 0.05). Dietary BDC supplementation increased jejunal and ileal GSH contents, SOD activities, jejunal GR activity, and ileal GST activity, while it decreased jejunal and ileal redox potential, and jejunal GSSG contents (P < 0.05). Dietary BDC supplementation significantly alleviated the downregulation of mRNA expression levels of jejunal and ileal copper and zinc superoxide dismutase, catalytic subunit of γ-glutamylcysteine ligase, nuclear factor erythroid-2-related factor 2, heme oxygenase 1, NAD(P)H quinone oxidoreductase 1, and jejunal catalase and GR induced by LPS challenge (P < 0.05). In conclusion, BDC demonstrated favorable protection against LPS-induced small intestinal oxidative damages, as indicated by the improved growth performance, decreased GSH redox potential, enhanced antioxidant enzyme activities, and upregulated antioxidant-related gene expression.
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Affiliation(s)
- Jingfei Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Hongli Han
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Lili Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Tian Wang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
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8
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Ozsváth A, Diószegi R, Bényei AC, Buglyó P. Pd(ii)-Complexes of a novel pyridinone based tripeptide conjugate: solution and solid state studies. Dalton Trans 2021; 49:9254-9267. [PMID: 32555805 DOI: 10.1039/d0dt01396j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A novel peptide conjugate (H(L2)) incorporating N-donors of the peptide backbone and an (O,O) donor set of a hydroxypyridinone moiety is synthesized and characterized. This ambidentate chelating ligand is intended to develop Co(iii)/Pt(ii) heterobimetallic multitargeted complexes with anticancer potential. To explore its metal ion binding ability the interaction with Pd(ii) (as a Pt(ii) model but with faster ligand exchange reactions) was studied in aqueous solution by the combined use of pH-potentiometry, NMR and HR MS. In an equimolar solution H(L2) was found to bind Pd(ii) via the terminal amino group and increasing number of peptide nitrogens of the peptide backbone over a wide pH range. Around physiological pH an (N,N) and (O,O) chelated 2 : 2 minor species was also identified. At a 2 : 1 Pd(ii) to ligand ratio the formation of dinuclear species, [Pd2H-x(L2)] (x = 1-4), with high stability and with the involvement of the (O,O) chelating set of the ligand too, was demonstrated. Reaction of H3(L2)2+ with Pd(ii) in the presence of chloride ions at pH ∼ 2.0 afforded [PdH(L2)Cl2]·2H2O (3) in a solid state whose molecular structure was assessed by single crystal X-ray diffraction. The structure of 3 revealed that Pd(ii) is coordinated by a (NH2, Namide) chelate of the ligand in a square planar fashion. It also indicates that under suitable conditions a 2N coordinated Pd(ii) complex can also be obtained even in the presence of four available nitrogen donors in the chelatable position in the ligand most likely due to its neutral charge and the decreased conditional stability of the amide-involved chelate(s) under acidic conditions. Reaction of H(L2) with [Co(tren)]3+ (tren = tris(2-aminoethyl)amine) revealed the exclusive coordination of (L2)-via its (O,O) chelate to the metal core while treatment of the Co-complex with Pd(ii) resulted in the formation of a Co/Pd heterobimetallic complex in solution with (NH2, Namide) chelated Pd(ii). Reaction of 3 with 9-methylguanine indicated the N7 coordination of this simple DNA model to Pd(ii) in a 1 : 1 ratio.
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Affiliation(s)
- András Ozsváth
- Department of Inorganic & Analytical Chemistry, University of Debrecen, Egyetem tér 1., H-4032 Debrecen, Hungary.
| | - Róbert Diószegi
- Department of Inorganic & Analytical Chemistry, University of Debrecen, Egyetem tér 1., H-4032 Debrecen, Hungary.
| | - Attila Csaba Bényei
- Department of Physical Chemistry, University of Debrecen, Egyetem tér 1., H-4032 Debrecen, Hungary
| | - Péter Buglyó
- Department of Inorganic & Analytical Chemistry, University of Debrecen, Egyetem tér 1., H-4032 Debrecen, Hungary.
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9
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Pellissari CVG, Jorge JH, Marin LM, Sabino-Silva R, Siqueira WL. Statherin-derived peptides as antifungal strategy against Candida albicans. Arch Oral Biol 2021; 125:105106. [PMID: 33740624 DOI: 10.1016/j.archoralbio.2021.105106] [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: 07/10/2020] [Revised: 03/08/2021] [Accepted: 03/09/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The aim of this in vitro study was to evaluate the effect of statherin and its naturally occurring peptides (DR9-2, DR9, GE-12, IT-32, GQ-19, IP-18) on Candida albicans metabolism and biofilm development. DESIGN After the killing assay, a peptide pellicle was formed on the bottom of a polystyrene plate at the IC50 of each peptide. Over the peptide pellicle, Candida albicans biofilm (48 h) was grown. The peptides antimicrobial activity after the peptides treatment was evaluated by alamarBlue, total biofilm biomass and colony forming units (CFU) counting. RESULTS The pellicle with statherin and the peptides (DR9-2, DR9, GE-12, IP-18, GQ-19) was able to reduce he viability of Candida albicans compared to the negative control. They also decreased cell proliferation by 20 % and total biomass. IT-32 showed the highest reduction in cell proliferation and biomass, which was similar to the positive control, histatin 5. CONCLUSIONS These results suggest that the naturally occuring peptides from statherin are able to decrease Candida albicans colonization and biofilm proliferation.
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Affiliation(s)
- Claudia Viviane Guimarães Pellissari
- Department of Dental Materials and Prosthodontics, Araraquara Dental School, São Paulo State University, UNESP, 1680 Rua Humaitá, Araraquara, SP, 14801-385, Brazil; College of Dentistry, University of Saskatchewan, 105 Wiggins Road, Saskatoon, SK, S7N 5E4, Canada
| | - Janaina Habib Jorge
- Department of Dental Materials and Prosthodontics, Araraquara Dental School, São Paulo State University, UNESP, 1680 Rua Humaitá, Araraquara, SP, 14801-385, Brazil.
| | - Lina Maria Marin
- College of Dentistry, University of Saskatchewan, 105 Wiggins Road, Saskatoon, SK, S7N 5E4, Canada
| | - Robinson Sabino-Silva
- Department of Physiology, Institute of Biomedical Sciences, Federal University of Uberlandia, 3Q - 2121 Av. João Naves de Ávila, Uberlandia, MG, 38400-902, Brazil
| | - Walter Luiz Siqueira
- College of Dentistry, University of Saskatchewan, 105 Wiggins Road, Saskatoon, SK, S7N 5E4, Canada
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10
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Pem B, Toma M, Vrček V, Vinković Vrček I. Combined NMR and Computational Study of Cysteine Oxidation during Nucleation of Metallic Clusters in Biological Systems. Inorg Chem 2021; 60:4144-4161. [PMID: 33657797 DOI: 10.1021/acs.inorgchem.1c00321] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The widespread biomedical applications of silver and gold nanoparticles (AgNPs and AuNPs, respectively) prompt the need for mechanistic evaluation of their interaction with biomolecules. In biological media, metallic NPs are known to transform by various pathways, especially in the presence of thiols. The interplay between metallic NPs and thiols may lead to unpredictable consequences for the health status of an organism. This study explored the potential events occurring during biotransformation, dissolution, and reformation of NPs in the thiol-rich biological media. The study employed a model system evaluating the interaction of cysteine with small-sized AgNPs and AuNPs. The interplay of cysteine on transformation and reformation pathways of these NPs was experimentally investigated by nuclear magnetic resonance (NMR) spectroscopy and supported by light scattering techniques and transmission electron microscopy (TEM). As the main outcome, Ag- or Au-catalyzed oxidation of cysteine to cystine was found to occur through generation of reactive oxygen species (ROS). Computational simulations confirmed this mechanism and the role of ROS in the oxidative dimerization of biothiol during NPs reformation. The obtained results represent valuable mechanistic data about the complex events during the transport of metallic NPs in thiol-rich biological systems that should be considered for the future biomedical applications of metal-based nanomaterials.
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Affiliation(s)
- Barbara Pem
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000 Zagreb, Croatia
| | - Mateja Toma
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1, 10000 Zagreb, Croatia
| | - Valerije Vrček
- Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1, 10000 Zagreb, Croatia
| | - Ivana Vinković Vrček
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000 Zagreb, Croatia
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11
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Kozsup M, Zhou X, Farkas E, Bényei AC, Bonnet S, Patonay T, Kónya K, Buglyó P. Synthesis, characterization and cytotoxicity studies of Co(III)-flavonolato complexes. J Inorg Biochem 2021; 217:111382. [PMID: 33588278 DOI: 10.1016/j.jinorgbio.2021.111382] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 01/27/2021] [Accepted: 01/27/2021] [Indexed: 11/29/2022]
Abstract
Hypoxia activated Co(III) complexes as prodrugs may provide with a selective delivery of cytotoxic or antibacterial compounds. Whithin this field sixteen novel Co(III) ternary complexes with the general formula [Co(4N)(flav)](ClO4)2, where 4N = tris(2-aminoethyl)amine (tren) or tris(2-pyridylmethyl)amine (tpa) and flav = deprotonated form of differently substituted flavonols have been synthesized, characterized, and their cytotoxicity assayed under both normoxic and hypoxic conditions. Molecular structures of two free flavonols and seven complexes are also reported. In all the complexes the bioligands exhibited the expected (O,O) coordination mode and the complexes showed a slightly distorted octahedral geometry. Cyclic voltammetric studies revealed that both the substituents of the flavonoles and the type of 4N donor ligands had an impact on the reduction potential of the complex. The ones containing tren demonstrated significantly higher stability than the tpa analogues, making these former compounds promising candidates for the development of hypoxia-activated prodrug complexes. Tpa complexes showed higher activity against both selected human cancer cell lines (A549, A431) than their free ligand flavonols, indicating that the anticancer activity of the bioligand can be enhanced upon complexation. However, slight hypoxia-selectivity was found only for a tren complex (11) with moderate cytotoxicity.
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Affiliation(s)
- Máté Kozsup
- Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - XueQuan Zhou
- Leiden Institute of Chemistry, Universiteit Leiden, Einsteinweg 55, 2333 CC Leiden, the Netherlands
| | - Etelka Farkas
- Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - Attila Cs Bényei
- Department of Physical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - Sylvestre Bonnet
- Leiden Institute of Chemistry, Universiteit Leiden, Einsteinweg 55, 2333 CC Leiden, the Netherlands
| | - Tamás Patonay
- Department of Organic Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - Krisztina Kónya
- Department of Organic Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - Péter Buglyó
- Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary.
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12
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Nagy S, Tóth E, Kacsir I, Makai A, Bényei AC, Buglyó P. Effect of the replacement of tripodal 4N donors by two 2N chelators on the redox and cytotoxic activity of maltolato and deferipronato containing Co(III) complexes. J Inorg Biochem 2021; 220:111372. [PMID: 33962134 DOI: 10.1016/j.jinorgbio.2021.111372] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/20/2021] [Accepted: 01/21/2021] [Indexed: 11/17/2022]
Abstract
Fourteen novel CoIII ternary complexes with the general formula [Co(4N)(2O)]X2 or [Co(2N)2(2O)]X2 where 4N = tris(2-aminoethyl)amine (tren) or tris(2-pyridylmethyl)amine (tpa); 2N = 1,10-phenantroline (phen), 2,2'-bipyridine (bipy), 1,2-diaminoethane (en) or 2-(aminomethyl)pyridine (ampy) and 2O = 1,2-dimethyl-3-hydroxy-4(1H)-pyridinone (dhpH), 3-hydroxy-2-methyl-4-pyrone (maltH) or 2-ethyl-3-hydroxy-4H-pyran-4-one (etmaltH) were synthesized, characterized and their redox features explored. Molecular structure of some selected [Co(2N)2(2O)](ClO4)2 (2N = phen, bipy, en; 2O = dhp, malt) or [Co(4N)(2O)](ClO4)2 (4N = tpa; 2O = etmalt) type complexes were assessed by X-ray diffraction and showed the expected octahedral geometry. Replacement of the 4N donor ligands by two 2N donor ligands resulted in the decrease of the cathodic peak potential of the complexes indicating easier reduction and allowing therefore the tailoring of the redox properties of the complexes. Screening of selected compounds against a human derived cancer cell line, HeLa, showed that, unlike the [Co(4N)(2O)]X2 derivatives, the complexes containing 2N = bipy or phen ligands have better anticancer activity than cisplatin or carboplatin.
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Affiliation(s)
- Sándor Nagy
- Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - Emese Tóth
- Department of Medical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - István Kacsir
- Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - Attila Makai
- Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - Attila Csaba Bényei
- Department of Physical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary
| | - Péter Buglyó
- Department of Inorganic and Analytical Chemistry, University of Debrecen, H-4032 Debrecen, Egyetem tér 1, Hungary.
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13
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Lewis JE, Forshaw TE, Boothman DA, Furdui CM, Kemp ML. Personalized Genome-Scale Metabolic Models Identify Targets of Redox Metabolism in Radiation-Resistant Tumors. Cell Syst 2021; 12:68-81.e11. [PMID: 33476554 PMCID: PMC7905848 DOI: 10.1016/j.cels.2020.12.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 08/04/2020] [Accepted: 12/16/2020] [Indexed: 12/14/2022]
Abstract
Redox cofactor production is integral toward antioxidant generation, clearance of reactive oxygen species, and overall tumor response to ionizing radiation treatment. To identify systems-level alterations in redox metabolism that confer resistance to radiation therapy, we developed a bioinformatics pipeline for integrating multi-omics data into personalized genome-scale flux balance analysis models of 716 radiation-sensitive and 199 radiation-resistant tumors. These models collectively predicted that radiation-resistant tumors reroute metabolic flux to increase mitochondrial NADPH stores and reactive oxygen species (ROS) scavenging. Simulated genome-wide knockout screens agreed with experimental siRNA gene knockdowns in matched radiation-sensitive and radiation-resistant cancer cell lines, revealing gene targets involved in mitochondrial NADPH production, central carbon metabolism, and folate metabolism that allow for selective inhibition of glutathione production and H2O2 clearance in radiation-resistant cancers. This systems approach represents a significant advancement in developing quantitative genome-scale models of redox metabolism and identifying personalized metabolic targets for improving radiation sensitivity in individual cancer patients.
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Affiliation(s)
- Joshua E. Lewis
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA 30332, USA
| | - Tom E. Forshaw
- Department of Internal Medicine, Section on Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - David A. Boothman
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Cristina M. Furdui
- Department of Internal Medicine, Section on Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Melissa L. Kemp
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA 30332, USA,Corresponding Author: Correspondence:
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14
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Zheng R, Zhang H. Regulation of Electronic Properties of Metal Oxide Nanoparticles to Reveal Their Toxicity Mechanism and Safe‐by‐Design Approach. Adv Biol (Weinh) 2021. [DOI: 10.1002/adbi.202000220] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Runxiao Zheng
- Laboratory of Chemical Biology Changchun Institute of Applied Chemistry Chinese Academy of Sciences 5625 Renmin Street, Jilin Changchun 130022 P. R. China
- School of Applied Chemistry and Engineering University of Science and Technology of China Hefei 230052 P. R. China
| | - Haiyuan Zhang
- Laboratory of Chemical Biology Changchun Institute of Applied Chemistry Chinese Academy of Sciences 5625 Renmin Street, Jilin Changchun 130022 P. R. China
- School of Applied Chemistry and Engineering University of Science and Technology of China Hefei 230052 P. R. China
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15
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Intracellular redox potential is correlated with miRNA expression in MCF7 cells under hypoxic conditions. Proc Natl Acad Sci U S A 2019; 116:19753-19759. [PMID: 31506353 DOI: 10.1073/pnas.1909455116] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Hypoxia is a ubiquitous feature of cancers, encouraging glycolytic metabolism, proliferation, and resistance to therapy. Nonetheless, hypoxia is a poorly defined term with confounding features described in the literature. Redox biology provides an important link between the external cellular microenvironment and the cell's response to changing oxygen pressures. In this paper, we demonstrate a correlation between intracellular redox potential (measured using optical nanosensors) and the concentrations of microRNAs (miRNAs) involved in the cell's response to changes in oxygen pressure. The correlations were established using surprisal analysis (an approach derived from thermodynamics and information theory). We found that measured redox potential changes reflect changes in the free energy computed by surprisal analysis of miRNAs. Furthermore, surprisal analysis identified groups of miRNAs, functionally related to changes in proliferation and metastatic potential that played the most significant role in the cell's response to changing oxygen pressure.
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16
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Wandee J, Prawan A, Senggunprai L, Kongpetch S, Kukongviriyapan V. Metformin sensitizes cholangiocarcinoma cell to cisplatin-induced cytotoxicity through oxidative stress mediated mitochondrial pathway. Life Sci 2018; 217:155-163. [PMID: 30528773 DOI: 10.1016/j.lfs.2018.12.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 12/02/2018] [Accepted: 12/05/2018] [Indexed: 01/17/2023]
Abstract
AIMS Metformin (Met), an essential antidiabetic agent, shows antitumor activity in some cancers. A previous study showed that Met enhanced cytotoxic activity of cisplatin (Cis) in cholangiocarcinoma (CCA) in association with the activation of AMP-activated protein kinase and suppression of Akt-mTOR. However, these effects do not entirely explain the observed chemosensitizing effect. The present study investigated the interaction of Met and Cis over the enhanced antitumor effect. MAIN METHODS KKU-100 and KKU-M156 cells were used in the study. Cytotoxicity was assessed by acridine orange-ethidium bromide staining. Reactive oxygen species (ROS) and mitochondrial transmembrane potential (Δψm) were measured by dihydroethidium and JC-1 fluorescent methods. Cellular glutathione (GSH) and redox ratio were analyzed by enzymatic coupling assay. Proteins associated with antioxidant system and cell death were evaluated by western immunoblot. KEY FINDINGS Cytotoxicity of Cis was enhanced by Met in association with ROS formation and GSH redox stress. The antioxidants, N-acetylcysteine and TEMPOL, and MPTP inhibitor, cyclosporine, attenuated cytotoxicity in association with suppression of ROS formation and the losses of Δψm. Met in combination with Cis suppressed expression of Nrf2 and altered the expression of Bcl2 family proteins. SIGNIFICANCE The chemosensitizing effect of Met in combination with Cis is causally associated with increased oxidative stress-mediated mitochondrial cell death pathway. Met may improve the efficacy of Cis in the treatment of cancer.
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Affiliation(s)
- Jaroon Wandee
- Department of Pharmacology, Faculty of Medicine, Khon Kaen University, 40002, Thailand
| | - Auemduan Prawan
- Department of Pharmacology, Faculty of Medicine, Khon Kaen University, 40002, Thailand; Cholangiocarcinoma Research Institute, Khon Kaen University, 40002, Thailand
| | - Laddawan Senggunprai
- Department of Pharmacology, Faculty of Medicine, Khon Kaen University, 40002, Thailand; Cholangiocarcinoma Research Institute, Khon Kaen University, 40002, Thailand
| | - Sarinya Kongpetch
- Department of Pharmacology, Faculty of Medicine, Khon Kaen University, 40002, Thailand; Cholangiocarcinoma Research Institute, Khon Kaen University, 40002, Thailand
| | - Veerapol Kukongviriyapan
- Department of Pharmacology, Faculty of Medicine, Khon Kaen University, 40002, Thailand; Cholangiocarcinoma Research Institute, Khon Kaen University, 40002, Thailand.
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17
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Sun J, Han S, Wang Y, Zhao G, Qian W, Dong J. Detection of Redox State Evolution during Wound Healing Process Based on a Redox-Sensitive Wound Dressing. Anal Chem 2018; 90:6660-6665. [PMID: 29757626 DOI: 10.1021/acs.analchem.8b00471] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
To detect the redox state evolution during wound healing process, a redox-sensitive surface-enhanced Raman scattering (SERS) probe was constructed by attaching anthraquinone as a redox-sensitive molecule onto gold nanoshells, and the redox-sensitive SERS probes were loaded on one surface of a chitosan membrane as a redox-sensitive wound dressing. The redox-sensitive wound dressing covered an acute wound as both a wound dressing and a redox state sensor. The spatiotemporal evolution of the redox states of the healing wound was obtained by collecting the SERS spectra of the SERS probes in situ and noninvasively. The domains with the lowest redox potential moved from the edge to the center of a wound during normal wound healing process, and high concentration of glucose blocked the movement of the domains and the healing process. The redox-sensitive wound dressing and the method of detecting redox states of the wound provide a new path for detection in vivo, which would benefit the understanding and therapy of wound healing and other pathophysiological processes.
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Affiliation(s)
- Jie Sun
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education , Southeast University , Nanjing , 210018 China
| | - Shuyan Han
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education , Southeast University , Nanjing , 210018 China
| | - Ying Wang
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education , Southeast University , Nanjing , 210018 China
| | - Guanyu Zhao
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education , Southeast University , Nanjing , 210018 China
| | - Weiping Qian
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education , Southeast University , Nanjing , 210018 China
| | - Jian Dong
- State Key Laboratory of Bioelectronics, National Demonstration Center for Experimental Biomedical Engineering Education , Southeast University , Nanjing , 210018 China.,Laboratory of Environment and Biosafety , Research Institute of Southeast University in Suzhou , Suzhou , 215123 China
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18
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Izrael-Živković L, Rikalović M, Gojgić-Cvijović G, Kazazić S, Vrvić M, Brčeski I, Beškoski V, Lončarević B, Gopčević K, Karadžić I. Cadmium specific proteomic responses of a highly resistantPseudomonas aeruginosasan ai. RSC Adv 2018; 8:10549-10560. [PMID: 35540485 PMCID: PMC9078880 DOI: 10.1039/c8ra00371h] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 03/07/2018] [Indexed: 11/29/2022] Open
Abstract
Pseudomonas aeruginosa san ai is a promising candidate for bioremediation of cadmium pollution, as it resists a high concentration of up to 7.2 mM of cadmium. Leaving biomass of P. aeruginosa san ai exposed to cadmium has a large biosorption potential, implying its capacity to extract heavy metal from contaminated medium. In the present study, we investigated tolerance and accumulation of cadmium on protein level by shotgun proteomics approach based on liquid chromatography and tandem mass spectrometry coupled with bioinformatics to identify proteins. Size exclusion chromatography was used for protein prefractionation to preserve native forms of metalloproteins and protein complexes. Using this approach a total of 60 proteins were observed as up-regulated in cadmium-amended culture. Almost a third of the total numbers of up-regulated were metalloproteins. Particularly interesting are denitrification proteins which are over expressed but not active, suggesting their protective role in conditions of heavy metal exposure. P. aeruginosa san ai developed a complex mechanism to adapt to cadmium, based on: extracellular biosorption, bioaccumulation, the formation of biofilm, controlled siderophore production, enhanced respiration and modified protein profile. An increased abundance of proteins involved in: cell energy metabolism, including denitrification proteins; amino acid metabolism; cell motility and posttranslational modifications, primarily based on thiol-disulfide exchange, were observed. Enhanced oxygen consumption of biomass in cadmium-amended culture versus control was found. Our results signify that P. aeruginosa san ai is naturally well equipped to overcome and survive high doses of cadmium and, as such, has a great potential for application in bioremediation of cadmium polluted sites. When exposed to cadmium a highly resistant strain P. aeruginosa san ai responds by an increased metalloprotein expression (particularly denitrification proteins), an enhanced respiration, and a pronounced thiol-disulfide protein modifications.![]()
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Affiliation(s)
| | - Milena Rikalović
- Faculty of Applied Ecology Futura
- University of Singidunum
- Belgrade
- Serbia
| | - Gordana Gojgić-Cvijović
- Institute of Chemistry
- Technology and Metallurgy
- Department of Chemistry
- University of Belgrade
- Belgrade
| | | | - Miroslav Vrvić
- Faculty of Chemistry
- University of Belgrade
- Belgrade
- Serbia
| | - Ilija Brčeski
- Faculty of Chemistry
- University of Belgrade
- Belgrade
- Serbia
| | | | - Branka Lončarević
- Institute of Chemistry
- Technology and Metallurgy
- Department of Chemistry
- University of Belgrade
- Belgrade
| | - Kristina Gopčević
- Department of Chemistry
- Faculty of Medicine
- University of Belgrade
- Belgrade
- Serbia
| | - Ivanka Karadžić
- Department of Chemistry
- Faculty of Medicine
- University of Belgrade
- Belgrade
- Serbia
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19
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Ribeiro T, Lemos F, Preto M, Azevedo J, Sousa ML, Leão PN, Campos A, Linder S, Vitorino R, Vasconcelos V, Urbatzka R. Cytotoxicity of portoamides in human cancer cells and analysis of the molecular mechanisms of action. PLoS One 2017; 12:e0188817. [PMID: 29216224 PMCID: PMC5720714 DOI: 10.1371/journal.pone.0188817] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 11/14/2017] [Indexed: 12/11/2022] Open
Abstract
Portoamides are cyclic peptides produced and released by the cyanobacterial strain Phormidium sp. presumably to interfere with other organisms in their ecosystems ("allelopathy"). Portoamides were previously demonstrated to have an antiproliferative effect on human lung carcinoma cells, but the underlying mechanism of this activity has not been described. In the present work, the effects of portoamides on proliferation were examined in eight human cancer cell lines and two non-carcinogenic cell lines, and major differences in sensitivities were observed. To generate hypotheses with regard to molecular mechanisms of action, quantitative proteomics using 2D gel electrophoresis and MALDI-TOF/TOF were performed on the colon carcinoma cell line HT-29. The expression of proteins involved in energy metabolism (mitochondrial respiratory chain and pentose phosphate pathway) was found to be affected. The hypothesis of altered energy metabolism was tested in further experiments. Exposure to portoamides resulted in reduced cellular ATP content, likely due to decreased mitochondrial energy production. Mitochondrial hyperpolarization and reduced mitochondrial reductive capacity was observed in treated cells. Furthermore, alterations in the expression of peroxiredoxins (PRDX4, PRDX6) and components of proteasome subunits (PSB4, PSA6) were observed in portoamide-treated cells, but these alterations were not associated with detectable increases in oxidative stress. We conclude that the cytotoxic activity of portoamides is associated with disturbance of energy metabolism, and alterations in mitochondrial structure and function.
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Affiliation(s)
- Tiago Ribeiro
- CIIMAR, Interdisciplinary Center of Marine and Environmental Research, Porto, Portugal
| | - Filipa Lemos
- CIIMAR, Interdisciplinary Center of Marine and Environmental Research, Porto, Portugal
| | - Marco Preto
- CIIMAR, Interdisciplinary Center of Marine and Environmental Research, Porto, Portugal
| | - Joana Azevedo
- CIIMAR, Interdisciplinary Center of Marine and Environmental Research, Porto, Portugal
| | - Maria Lígia Sousa
- CIIMAR, Interdisciplinary Center of Marine and Environmental Research, Porto, Portugal
| | - Pedro N. Leão
- CIIMAR, Interdisciplinary Center of Marine and Environmental Research, Porto, Portugal
| | - Alexandre Campos
- CIIMAR, Interdisciplinary Center of Marine and Environmental Research, Porto, Portugal
| | - Stig Linder
- Department of Oncology-Pathology, Karolinska Institute, Stockholm, Sweden
- Department of Medical and Health Sciences, Faculty of Health Sciences, Linköping University, Linköping, Sweden
| | - Rui Vitorino
- Department of Medical Sciences, Institute of Biomedicine–iBiMED, University of Aveiro, Aveiro, Portugal
- Department of Physiology and Cardiothoracic Surgery, Faculty of Medicine, University of Porto, Porto, Portugal
| | - Vitor Vasconcelos
- CIIMAR, Interdisciplinary Center of Marine and Environmental Research, Porto, Portugal
- FCUP, Faculty of Science, Department of Biology, University of Porto, Porto, Portugal
| | - Ralph Urbatzka
- CIIMAR, Interdisciplinary Center of Marine and Environmental Research, Porto, Portugal
- * E-mail:
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20
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Blázquez-Castro A. Direct 1O 2 optical excitation: A tool for redox biology. Redox Biol 2017; 13:39-59. [PMID: 28570948 PMCID: PMC5451181 DOI: 10.1016/j.redox.2017.05.011] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 04/30/2017] [Accepted: 05/20/2017] [Indexed: 12/28/2022] Open
Abstract
Molecular oxygen (O2) displays very interesting properties. Its first excited state, commonly known as singlet oxygen (1O2), is one of the so-called Reactive Oxygen Species (ROS). It has been implicated in many redox processes in biological systems. For many decades its role has been that of a deleterious chemical species, although very positive clinical applications in the Photodynamic Therapy of cancer (PDT) have been reported. More recently, many ROS, and also 1O2, are in the spotlight because of their role in physiological signaling, like cell proliferation or tissue regeneration. However, there are methodological shortcomings to properly assess the role of 1O2 in redox biology with classical generation procedures. In this review the direct optical excitation of O2 to produce 1O2 will be introduced, in order to present its main advantages and drawbacks for biological studies. This photonic approach can provide with many interesting possibilities to understand and put to use ROS in redox signaling and in the biomedical field.
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Affiliation(s)
- Alfonso Blázquez-Castro
- Department of Physics of Materials, Faculty of Sciences, Autonomous University of Madrid, Madrid, Spain; Formerly at Aarhus Institute of Advanced Studies (AIAS)/Department of Chemistry, Aarhus University, Aarhus, Denmark.
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21
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Jamieson LE, Asiala SM, Gracie K, Faulds K, Graham D. Bioanalytical Measurements Enabled by Surface-Enhanced Raman Scattering (SERS) Probes. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2017; 10:415-437. [PMID: 28301754 DOI: 10.1146/annurev-anchem-071015-041557] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Since its discovery in 1974, surface-enhanced Raman scattering (SERS) has gained momentum as an important tool in analytical chemistry. SERS is used widely for analysis of biological samples, ranging from in vitro cell culture models, to ex vivo tissue and blood samples, and direct in vivo application. New insights have been gained into biochemistry, with an emphasis on biomolecule detection, from small molecules such as glucose and amino acids to larger biomolecules such as DNA, proteins, and lipids. These measurements have increased our understanding of biological systems, and significantly, they have improved diagnostic capabilities. SERS probes display unique advantages in their detection sensitivity and multiplexing capability. We highlight key considerations that are required when performing bioanalytical SERS measurements, including sample preparation, probe selection, instrumental configuration, and data analysis. Some of the key bioanalytical measurements enabled by SERS probes with application to in vitro, ex vivo, and in vivo biological environments are discussed.
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Affiliation(s)
- Lauren E Jamieson
- Centre for Molecular Nanometrology, WestCHEM, Department of Pure and Applied Chemistry, Technology and Innovation Centre, University of Strathclyde, Glasgow, G1 1RD, United Kingdom;
| | - Steven M Asiala
- Centre for Molecular Nanometrology, WestCHEM, Department of Pure and Applied Chemistry, Technology and Innovation Centre, University of Strathclyde, Glasgow, G1 1RD, United Kingdom;
| | - Kirsten Gracie
- Centre for Molecular Nanometrology, WestCHEM, Department of Pure and Applied Chemistry, Technology and Innovation Centre, University of Strathclyde, Glasgow, G1 1RD, United Kingdom;
| | - Karen Faulds
- Centre for Molecular Nanometrology, WestCHEM, Department of Pure and Applied Chemistry, Technology and Innovation Centre, University of Strathclyde, Glasgow, G1 1RD, United Kingdom;
| | - Duncan Graham
- Centre for Molecular Nanometrology, WestCHEM, Department of Pure and Applied Chemistry, Technology and Innovation Centre, University of Strathclyde, Glasgow, G1 1RD, United Kingdom;
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22
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Jamieson LE, Camus VL, Bagnaninchi PO, Fisher KM, Stewart GD, Nailon WH, McLaren DB, Harrison DJ, Campbell CJ. Targeted SERS nanosensors measure physicochemical gradients and free energy changes in live 3D tumor spheroids. NANOSCALE 2016; 8:16710-16718. [PMID: 27714168 DOI: 10.1039/c6nr06031e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Use of multicellular tumor spheroids (MTS) to investigate therapies has gained impetus because they have potential to mimic factors including zonation, hypoxia and drug-resistance. However, analysis remains difficult and often destroys 3D integrity. Here we report an optical technique using targeted nanosensors that allows in situ 3D mapping of redox potential gradients whilst retaining MTS morphology and function. The magnitude of the redox potential gradient can be quantified as a free energy difference (ΔG) and used as a measurement of MTS viability. We found that by delivering different doses of radiotherapy to MTS we could correlate loss of ΔG with increasing therapeutic dose. In addition, we found that resistance to drug therapy was indicated by an increase in ΔG. This robust and reproducible technique allows interrogation of an in vitro tumor-model's bioenergetic response to therapy, indicating its potential as a tool for therapy development.
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Affiliation(s)
- Lauren E Jamieson
- EaStCHEM, School of Chemistry, University of Edinburgh, Edinburgh, EH9 3FJ, UK.
| | - Victoria L Camus
- EaStCHEM, School of Chemistry, University of Edinburgh, Edinburgh, EH9 3FJ, UK.
| | | | - Kate M Fisher
- EaStCHEM, School of Chemistry, University of Edinburgh, Edinburgh, EH9 3FJ, UK.
| | - Grant D Stewart
- Academic Urology Group, University of Cambridge, Addenbrooke's Hospital, Cambridge, CB2 0QQ, UK
| | - William H Nailon
- Edinburgh Radiation Research Collaborative, Department of Oncology Physics, Western General Hospital, Edinburgh EH4 2U, UK and School of Engineering, University of Edinburgh, Edinburgh, EH9 3JL, UK
| | - Duncan B McLaren
- Edinburgh Radiation Research Collaborative, Edinburgh Cancer Centre, Western General Hospital, Edinburgh EH4 2U, UK
| | | | - Colin J Campbell
- EaStCHEM, School of Chemistry, University of Edinburgh, Edinburgh, EH9 3FJ, UK.
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Martínez-Pérez C, Ward C, Turnbull AK, Mullen P, Cook G, Meehan J, Jarman EJ, Thomson PIT, Campbell CJ, McPhail D, Harrison DJ, Langdon SP. Antitumour activity of the novel flavonoid Oncamex in preclinical breast cancer models. Br J Cancer 2016; 114:905-16. [PMID: 27031849 PMCID: PMC4984802 DOI: 10.1038/bjc.2016.6] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 11/17/2015] [Accepted: 12/16/2015] [Indexed: 12/28/2022] Open
Abstract
Background: The natural polyphenol myricetin induces cell cycle arrest and apoptosis in preclinical cancer models. We hypothesised that myricetin-derived flavonoids with enhanced redox properties, improved cell uptake and mitochondrial targeting might have increased potential as antitumour agents. Methods: We studied the effect of a second-generation flavonoid analogue Oncamex in a panel of seven breast cancer cell lines, applying western blotting, gene expression analysis, fluorescence microscopy and immunohistochemistry of xenograft tissue to investigate its mechanism of action. Results: Proliferation assays showed that Oncamex treatment for 8 h reduced cell viability and induced cytotoxicity and apoptosis, concomitant with increased caspase activation. Microarray analysis showed that Oncamex was associated with changes in the expression of genes controlling cell cycle and apoptosis. Fluorescence microscopy showed the compound's mitochondrial targeting and reactive oxygen species-modulating properties, inducing superoxide production at concentrations associated with antiproliferative effects. A preliminary in vivo study in mice implanted with the MDA-MB-231 breast cancer xenograft showed that Oncamex inhibited tumour growth, reducing tissue viability and Ki-67 proliferation, with no signs of untoward effects on the animals. Conclusions: Oncamex is a novel flavonoid capable of specific mitochondrial delivery and redox modulation. It has shown antitumour activity in preclinical models of breast cancer, supporting the potential of this prototypic candidate for its continued development as an anticancer agent.
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Affiliation(s)
- Carlos Martínez-Pérez
- Division of Pathology Laboratories, Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Carol Ward
- Division of Pathology Laboratories, Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Arran K Turnbull
- Division of Pathology Laboratories, Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Peter Mullen
- School of Medicine, University of St Andrews, St Andrews KY16 9TF, UK
| | - Graeme Cook
- Antoxis Limited, IMS Building, Foresterhill Health and Research Complex, Aberdeen AB25 2ZD, UK
| | - James Meehan
- Division of Pathology Laboratories, Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Edward J Jarman
- Division of Pathology Laboratories, Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Patrick I T Thomson
- EaSTCHEM, School of Chemistry, University of Edinburgh, Joseph Black Building, Edinburgh EH9 3FJ, UK
| | - Colin J Campbell
- EaSTCHEM, School of Chemistry, University of Edinburgh, Joseph Black Building, Edinburgh EH9 3FJ, UK
| | - Donald McPhail
- Antoxis Limited, IMS Building, Foresterhill Health and Research Complex, Aberdeen AB25 2ZD, UK
| | - David J Harrison
- School of Medicine, University of St Andrews, St Andrews KY16 9TF, UK
| | - Simon P Langdon
- Division of Pathology Laboratories, Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital, Edinburgh EH4 2XU, UK
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Thurlow SE, Kilgour DP, Campopiano DJ, Mackay CL, Langridge-Smith PRR, Clarke DJ, Campbell CJ. Determination of Protein Thiol Reduction Potential by Isotope Labeling and Intact Mass Measurement. Anal Chem 2016; 88:2727-33. [PMID: 26881737 DOI: 10.1021/acs.analchem.5b04195] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Oxidation/reduction of thiol residues in proteins is an important type of post-translational modification that is implicated in regulating a range of biological processes. The nature of the modification makes it possible to define a quantifiable electrochemical potential (E(⊕)) for oxidation/reduction that allows cysteine-containing proteins to be ranked based on their propensity to be oxidized. Measuring oxidation of cysteine residues in proteins is difficult using standard electrochemical methods, but top-down mass spectrometry recently has been shown to enable the quantification of E(⊕) for thiol oxidations. In this paper, we demonstrate that mass spectrometry of intact proteins can be used in combination with an isotopic labeling strategy and an automated data analysis algorithm to measure E(⊕) for the thiols in both E. coli Thioredoxin 1 and human Thioredoxin 1. Our methodology relies on accurate mass measurement of proteins using liquid chromatography-mass spectroscopy (LC-MS) analyses and does not necessarily require top-down fragmentation. In addition to analyzing homogeneous protein samples, we also demonstrate that our methodology can be used to determine thiol E(⊕) measurements in samples that contain mixtures of proteins. Thus, the combination of experimential methodology and data analysis regime has the potential to make such measurements in a high-throughput manner and in a manner that is more accessible to a broad community of protein scientists.
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Affiliation(s)
- Sophie E Thurlow
- EaStCHEM School of Chemistry, University of Edinburgh , David Brewster Road, Edinburgh EH9 3FJ, United Kingdom
| | - David P Kilgour
- Chemistry and Forensics, Rosalind Franklin Building, Nottingham Trent University , Clifton Campus, Clifton Lane, Nottingham, NG11 8NS, United Kingdom
| | - Dominic J Campopiano
- EaStCHEM School of Chemistry, University of Edinburgh , David Brewster Road, Edinburgh EH9 3FJ, United Kingdom
| | - C Logan Mackay
- EaStCHEM School of Chemistry, University of Edinburgh , David Brewster Road, Edinburgh EH9 3FJ, United Kingdom
| | - Pat R R Langridge-Smith
- EaStCHEM School of Chemistry, University of Edinburgh , David Brewster Road, Edinburgh EH9 3FJ, United Kingdom
| | - David J Clarke
- EaStCHEM School of Chemistry, University of Edinburgh , David Brewster Road, Edinburgh EH9 3FJ, United Kingdom
| | - Colin J Campbell
- EaStCHEM School of Chemistry, University of Edinburgh , David Brewster Road, Edinburgh EH9 3FJ, United Kingdom
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25
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Camus VL, Stewart G, Nailon WH, McLaren DB, Campbell CJ. Measuring the effects of fractionated radiation therapy in a 3D prostate cancer model system using SERS nanosensors. Analyst 2016; 141:5056-61. [DOI: 10.1039/c6an01032f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Using Surface Enhanced Raman Spectroscopy to measure cell death caused by radiation in a 3D model of prostate cancer.
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Affiliation(s)
| | - Grant Stewart
- School of Clinical Surgery
- University of Edinburgh EH16
- UK
| | - William H. Nailon
- Edinburgh Radiation Research Collaborative
- Oncology Physics
- Western General Hospital
- Edinburgh EH4 2U
- UK
| | - Duncan B. McLaren
- Edinburgh Radiation Research Collaborative
- Edinburgh Cancer Centre
- Western General Hospital
- Edinburgh EH4 2U
- UK
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26
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Jamwal A, Naderi M, Niyogi S. An in vitro examination of selenium–cadmium antagonism using primary cultures of rainbow trout (Oncorhynchus mykiss) hepatocytes. Metallomics 2016; 8:218-27. [DOI: 10.1039/c5mt00232j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Se has antagonistic effects on Cd-induced cytotoxicityviaboth enzymatic and non-enzymatic antioxidative mechanisms and the effects are strictly dose dependent. Confocal fluorescent images of isolated rainbow trout hepatocytes exposed to 100 µM Cd, alone or in combination with low (25 µM) or high (250 µM) concentration of Se, show reduced ROS generation with low concentration of Se.
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Affiliation(s)
- Ankur Jamwal
- Department of Biology
- University of Saskatchewan
- Saskatoon, Canada
| | - Mohammad Naderi
- Department of Biology
- University of Saskatchewan
- Saskatoon, Canada
| | - Som Niyogi
- Department of Biology
- University of Saskatchewan
- Saskatoon, Canada
- Toxicology Centre
- University of Saskatchewan
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27
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Jamieson LE, Jaworska A, Jiang J, Baranska M, Harrison DJ, Campbell CJ. Simultaneous intracellular redox potential and pH measurements in live cells using SERS nanosensors. Analyst 2015; 140:2330-5. [PMID: 25700000 DOI: 10.1039/c4an02365j] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Intracellular redox potential is a highly regulated cellular characteristic and is critically involved in maintaining cellular health and function. The dysregulation of redox potential can result in the initiation and progression of numerous diseases. Redox potential is determined by the balance of oxidants and reductants in the cell and also by pH. For this reason a technique for quantitative measurement of intracellular redox potential and pH is highly desirable. In this paper we demonstrate how surface enhanced Raman scattering (SERS) nanosensors can be used for multiplexed measurement of both pH and redox potential in live single cells.
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Affiliation(s)
- L E Jamieson
- EaStCHEM, School of Chemistry, University of Edinburgh, Edinburgh, EH9 3JJ, UK.
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28
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Lismont C, Nordgren M, Van Veldhoven PP, Fransen M. Redox interplay between mitochondria and peroxisomes. Front Cell Dev Biol 2015; 3:35. [PMID: 26075204 PMCID: PMC4444963 DOI: 10.3389/fcell.2015.00035] [Citation(s) in RCA: 132] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 05/09/2015] [Indexed: 12/14/2022] Open
Abstract
Reduction-oxidation or “redox” reactions are an integral part of a broad range of cellular processes such as gene expression, energy metabolism, protein import and folding, and autophagy. As many of these processes are intimately linked with cell fate decisions, transient or chronic changes in cellular redox equilibrium are likely to contribute to the initiation and progression of a plethora of human diseases. Since a long time, it is known that mitochondria are major players in redox regulation and signaling. More recently, it has become clear that also peroxisomes have the capacity to impact redox-linked physiological processes. To serve this function, peroxisomes cooperate with other organelles, including mitochondria. This review provides a comprehensive picture of what is currently known about the redox interplay between mitochondria and peroxisomes in mammals. We first outline the pro- and antioxidant systems of both organelles and how they may function as redox signaling nodes. Next, we critically review and discuss emerging evidence that peroxisomes and mitochondria share an intricate redox-sensitive relationship and cooperate in cell fate decisions. Key issues include possible physiological roles, messengers, and mechanisms. We also provide examples of how data mining of publicly-available datasets from “omics” technologies can be a powerful means to gain additional insights into potential redox signaling pathways between peroxisomes and mitochondria. Finally, we highlight the need for more studies that seek to clarify the mechanisms of how mitochondria may act as dynamic receivers, integrators, and transmitters of peroxisome-derived mediators of oxidative stress. The outcome of such studies may open up exciting new avenues for the community of researchers working on cellular responses to organelle-derived oxidative stress, a research field in which the role of peroxisomes is currently highly underestimated and an issue of discussion.
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Affiliation(s)
- Celien Lismont
- Laboratory of Lipid Biochemistry and Protein Interactions, Department of Cellular and Molecular Medicine, KU Leuven - University of Leuven Leuven, Belgium
| | - Marcus Nordgren
- Laboratory of Lipid Biochemistry and Protein Interactions, Department of Cellular and Molecular Medicine, KU Leuven - University of Leuven Leuven, Belgium
| | - Paul P Van Veldhoven
- Laboratory of Lipid Biochemistry and Protein Interactions, Department of Cellular and Molecular Medicine, KU Leuven - University of Leuven Leuven, Belgium
| | - Marc Fransen
- Laboratory of Lipid Biochemistry and Protein Interactions, Department of Cellular and Molecular Medicine, KU Leuven - University of Leuven Leuven, Belgium
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Scanlon MD, Peljo P, Méndez MA, Smirnov E, Girault HH. Charging and discharging at the nanoscale: Fermi level equilibration of metallic nanoparticles. Chem Sci 2015; 6:2705-2720. [PMID: 28706663 PMCID: PMC5489025 DOI: 10.1039/c5sc00461f] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Accepted: 03/23/2015] [Indexed: 12/22/2022] Open
Abstract
The redox properties of metallic nanoparticles are discussed, in particular the relationships between excess charge, size and the Fermi level of the electrons. The redox potentials are derived using simple electrostatic models to provide a straightforward understanding of the basic phenomena. The different techniques used to measure the variation of Fermi level are presented. Finally, redox aspects of processes such as toxicity, electrochromicity and surface plasmon spectroscopy are discussed.
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Affiliation(s)
- Micheál D Scanlon
- Laboratoire d'Electrochimie Physique et Analytique , Ecole Polytechnique Fédérale de Lausanne , Station 6 , CH-1015 Lausanne , Switzerland .
- Department of Chemistry , Tyndall National Institute , University College Cork , Cork , Ireland
| | - Pekka Peljo
- Laboratoire d'Electrochimie Physique et Analytique , Ecole Polytechnique Fédérale de Lausanne , Station 6 , CH-1015 Lausanne , Switzerland .
| | - Manuel A Méndez
- Laboratoire d'Electrochimie Physique et Analytique , Ecole Polytechnique Fédérale de Lausanne , Station 6 , CH-1015 Lausanne , Switzerland .
| | - Evgeny Smirnov
- Laboratoire d'Electrochimie Physique et Analytique , Ecole Polytechnique Fédérale de Lausanne , Station 6 , CH-1015 Lausanne , Switzerland .
| | - Hubert H Girault
- Laboratoire d'Electrochimie Physique et Analytique , Ecole Polytechnique Fédérale de Lausanne , Station 6 , CH-1015 Lausanne , Switzerland .
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30
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Thomson PIT, Camus VL, Hu Y, Campbell CJ. Series of Quinone-Containing Nanosensors for Biologically Relevant Redox Potential Determination by Surface-Enhanced Raman Spectroscopy. Anal Chem 2015; 87:4719-25. [DOI: 10.1021/ac504795s] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Patrick I. T. Thomson
- School of Chemistry, University of Edinburgh, Joseph
Black Building, David Brewster Road, Edinburgh, United Kingdom EH9 3FJ
| | - Victoria L. Camus
- School of Chemistry, University of Edinburgh, Joseph
Black Building, David Brewster Road, Edinburgh, United Kingdom EH9 3FJ
| | - Yuyu Hu
- School of Chemistry, University of Edinburgh, Joseph
Black Building, David Brewster Road, Edinburgh, United Kingdom EH9 3FJ
| | - Colin J. Campbell
- School of Chemistry, University of Edinburgh, Joseph
Black Building, David Brewster Road, Edinburgh, United Kingdom EH9 3FJ
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31
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Blázquez-Castro A, Stockert JC. In vitro human cell responses to a low-dose photodynamic treatment vs. mild H2O2 exposure. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 143:12-9. [DOI: 10.1016/j.jphotobiol.2014.12.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 12/07/2014] [Accepted: 12/13/2014] [Indexed: 01/01/2023]
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Jiang J, Auchinvole C, Fisher K, Campbell CJ. Quantitative measurement of redox potential in hypoxic cells using SERS nanosensors. NANOSCALE 2014; 6:12104-12110. [PMID: 25195575 DOI: 10.1039/c4nr01263a] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Hypoxia is considered to be a reductive disorder of cells that is caused either by a lack of oxygen or by the dysregulation of metabolic pathways and is thought to play a role in the pathology of diseases including stroke and cancer. One aspect of hypoxia that remains poorly investigated is the dysregulation of cellular redox potential and its role in controlling biological pathway activation. Since there is currently no way of quantitatively measuring the intracellular redox potential of hypoxic cells, this provided us with the motivation to develop optical nanosensors whose Surface-Enhanced Raman (SER) spectrum provides a quantitative measure of redox potential in hypoxic cells. Our nanosensors are made from organic reporter molecules that show oxidation-state-dependent changes in the Raman spectrum and are chemically adsorbed onto gold nanoshells. These nanosensors can be taken up by cells, and by collecting the SER spectrum we can calculate the localised intracellular redox potential from single hypoxic cells in a non-invasive, reversible way.
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Affiliation(s)
- Jing Jiang
- EaStCHEM, School of Chemistry, Joseph Black Building, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, UK.
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33
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Flis A, Suchocki P, Królikowska MA, Suchocka Z, Remiszewska M, Śliwka L, Książek I, Sitarz K, Sochacka M, Hoser G, Anuszewska E, Wroczyński P, Jastrzębski Z. Selenitetriglycerides-Redox-active agents. Pharmacol Rep 2014; 67:1-8. [PMID: 25560568 DOI: 10.1016/j.pharep.2014.07.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 07/23/2014] [Accepted: 07/29/2014] [Indexed: 10/24/2022]
Abstract
BACKGROUND Human prostate cancer (hPCa) is the most commonly diagnosed cancer in elderly men and is the second leading cause of male cancer death. Data from epidemiological, eco-environmental, nutritional prevention and clinical trials suggest that selenium Se(IV) can prevent prostate cancer. Selol, a new organic semisynthetic derivative of Se(IV), is a mixture of selenitetriglycerides. This mixture is non-toxic and non-mutagenic, and after po treatment - 56-times less toxic (in mice) than sodium selenite. It exhibits strong anti-cancer activity in vitro in many cancer cell lines and can overcome the cell resistance to doxorubicin. Selol seems a promising compound for prostate cancer therapy. MATERIALS AND METHODS The aim of the present study is the evaluation of Selol's influence on intracellular redox state (Eh) of prostatic tumors and the liver in androgen-dependent hPCa-bearing mice, and extracellular redox state in serum of these mice. RESULTS AND CONCLUSIONS The anticancer activity of Selol involves perturbation of the redox regulation in the androgen dependent hPCa (LNCaP) cells, but not in healthy cells. After Selol treatment, intracellular Eh has increased in tumors from -223 mV to -175 mV, while in serum it has decreased (-82 mV vs -113 mV). It shows significant changes Eh in the extra- and intracellular environment. The difference decreases from 141 mV to 62 mV. The changes suggest that a tumor cell was probably directed toward apoptosis. This is exemplified in a significant decrease in cancer tumor mass by approx. 17% after the three weeks of Selol administration.
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Affiliation(s)
- Anna Flis
- Department of Bioanalysis and Drugs Analysis, Medical University of Warsaw, Warszawa, Poland
| | - Piotr Suchocki
- Department of Bioanalysis and Drugs Analysis, Medical University of Warsaw, Warszawa, Poland; Department of Pharmaceutical Chemistry, National Medicines Institute, Warszawa, Poland.
| | - Monika Anna Królikowska
- Department of Bioanalysis and Drugs Analysis, Medical University of Warsaw, Warszawa, Poland
| | - Zofia Suchocka
- Department of Biochemistry and Clinical Chemistry, Medical University of Warsaw, Warszawa, Poland
| | | | - Lidia Śliwka
- Department of Bioanalysis and Drugs Analysis, Medical University of Warsaw, Warszawa, Poland
| | - Iza Książek
- Department of Biochemistry and Biofarmaceuticals, National Medicines Institute, Warszawa, Poland
| | - Karolina Sitarz
- Department of Biochemistry and Biofarmaceuticals, National Medicines Institute, Warszawa, Poland
| | - Małgorzata Sochacka
- Department of Bioanalysis and Drugs Analysis, Medical University of Warsaw, Warszawa, Poland
| | - Grażyna Hoser
- The Center of Postgraduate Medical Education, Department of Clinical Cytology, Warszawa, Poland
| | - Elżbieta Anuszewska
- Department of Biochemistry and Biofarmaceuticals, National Medicines Institute, Warszawa, Poland
| | - Piotr Wroczyński
- Department of Bioanalysis and Drugs Analysis, Medical University of Warsaw, Warszawa, Poland
| | - Zenon Jastrzębski
- Department of Pharmacology, National Medicines Institute, Warszawa, Poland
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Forbes-Hernández TY, Giampieri F, Gasparrini M, Mazzoni L, Quiles JL, Alvarez-Suarez JM, Battino M. The effects of bioactive compounds from plant foods on mitochondrial function: a focus on apoptotic mechanisms. Food Chem Toxicol 2014; 68:154-82. [PMID: 24680691 DOI: 10.1016/j.fct.2014.03.017] [Citation(s) in RCA: 144] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 03/09/2014] [Accepted: 03/14/2014] [Indexed: 02/06/2023]
Abstract
Mitochondria are essential organelles for cellular integrity and functionality maintenance and their imparement is implicated in the development of a wide range of diseases, including metabolic, cardiovascular, degenerative and hyperproliferative pathologies. The identification of different compounds able to interact with mitochondria for therapeutic purposes is currently becoming of primary importance. Indeed, it is well known that foods, particularly those of vegetable origin, present several constituents with beneficial effects on health. This review summarizes and updates the most recent findings concerning the mechanisms through which different dietary compounds from plant foods affect mitochondria functionality in healthy and pathological in vitro and in vivo models, paying particular attention to the pathways involved in mitochondrial biogenesis and apoptosis.
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Affiliation(s)
- Tamara Y Forbes-Hernández
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche, Sez. Biochimica, Facoltà di Medicina, Università Politecnica delle Marche, Italy
| | - Francesca Giampieri
- Dipartimento di Scienze Agrarie, Alimentari ed Ambientali, Università Politecnica delle Marche, Italy.
| | - Massimiliano Gasparrini
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche, Sez. Biochimica, Facoltà di Medicina, Università Politecnica delle Marche, Italy
| | - Luca Mazzoni
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche, Sez. Biochimica, Facoltà di Medicina, Università Politecnica delle Marche, Italy
| | - José L Quiles
- Department of Physiology, Institute of Nutrition and Food Technology "José Mataix", Biomedical Research Center, University of Granada, Spain
| | - José M Alvarez-Suarez
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche, Sez. Biochimica, Facoltà di Medicina, Università Politecnica delle Marche, Italy; Dipartimento di Scienze Agrarie, Alimentari ed Ambientali, Università Politecnica delle Marche, Italy
| | - Maurizio Battino
- Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche, Sez. Biochimica, Facoltà di Medicina, Università Politecnica delle Marche, Italy.
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Tamames-Tabar C, Cunha D, Imbuluzqueta E, Ragon F, Serre C, Blanco-Prieto MJ, Horcajada P. Cytotoxicity of nanoscaled metal-organic frameworks. J Mater Chem B 2013; 2:262-271. [PMID: 32261505 DOI: 10.1039/c3tb20832j] [Citation(s) in RCA: 229] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A series of fourteen porous Metal-Organic Frameworks (MOFs) with different compositions (Fe, Zn, and Zr; carboxylates or imidazolates) and structures have been successfully synthesised at the nanoscale and fully characterised by XRPD, FTIR, TGA, N2 porosimetry, TEM, DLS and ζ-potential. Their toxicological assessment was performed using two different cell lines: human epithelial cells from foetal cervical carcinoma (HeLa) and murine macrophage cell line (J774). It appears that MOF nanoparticles (NPs) exhibit low cytotoxicity, comparable to those of other commercialised nanoparticulate systems, the less toxic being the Fe carboxylate and the more toxic being the zinc imidazolate NPs. The cytotoxicity values, higher in J774 cells than in HeLa cells, are mainly function of their composition and cell internalisation capacity. Finally, cell uptake of one of the most relevant Fe-MOF-NPs for drug vectorisation has been investigated by confocal microscopy studies, and indicates a faster kinetics of cell penetration within J774 compared to HeLa cells.
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Affiliation(s)
- Cristina Tamames-Tabar
- Institut Lavoisier, UMR CNRS 8180, Université de Versailles Saint-Quentin-en-Yvelines, 45 Avenue des Etats-Unis, 78035 Versailles Cedex, France.
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