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Yang SK, Yusoff K, Thomas W, Akseer R, Alhosani MS, Abushelaibi A, Lim SHE, Lai KS. Lavender essential oil induces oxidative stress which modifies the bacterial membrane permeability of carbapenemase producing Klebsiella pneumoniae. Sci Rep 2020; 10:819. [PMID: 31964900 PMCID: PMC6972767 DOI: 10.1038/s41598-019-55601-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 11/30/2019] [Indexed: 12/13/2022] Open
Abstract
Misuse of antibiotics in the clinical and agricultural sectors has caused the emergence of multidrug-resistant (MDR) Klebsiella pneumoniae which contributes a threat to human health. In this study, we assessed the feasibility of lavender essential oil (LVO) as an antimicrobial agent in combinatory therapy with meropenem in suppressing the growth of carbapenemase-producing K. pneumoniae (KPC-KP). Synergistic interactions between LVO and meropenem were detected, which significantly reduce the inhibitory concentration of both LVO and meropenem by 15 and 4-fold respectively. Comparative proteomic profiling identified a disruption in the bacterial membrane via oxidative stress that was indicated by loss of membrane and cytoplasmic proteins and the upregulation of oxidative regulators. As a proof of concept, zeta potential measurements showed a change in cell surface charge while outer membrane permeability measurement indicated an increase in membrane permeability following exposure to LVO. This was indicative of a disrupted outer membrane. Ethidium bromide influx/efflux assays demonstrated no significant efflux pump inhibition by LVO, and scanning electron microscopy revealed irregularities on the cell surface after exposure to LVO. Oxidative stress was also detected with increased level of ROS and lipid peroxidation in LVO-treated cells. In conclusion, our data suggest that LVO induced oxidative stress in K. pneumoniae which oxidizes the outer membrane, enabling the influx of generated ROS, LVO and meropenem into the bacterial cells, causing damage to the cells and eventually death.
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Affiliation(s)
- Shun-Kai Yang
- Health Sciences Division, Abu Dhabi Women's College, Higher Colleges of Technology, 41012, Abu Dhabi, United Arab Emirates
| | - Khatijah Yusoff
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Warren Thomas
- Perdana University-Royal College of Surgeons in Ireland School of Medicine, Perdana University, MAEPS Building, 43400, Serdang, Selangor, Malaysia
| | - Riaz Akseer
- Health Sciences Division, Abu Dhabi Women's College, Higher Colleges of Technology, 41012, Abu Dhabi, United Arab Emirates
| | - Maryam Sultan Alhosani
- Health Sciences Division, Abu Dhabi Women's College, Higher Colleges of Technology, 41012, Abu Dhabi, United Arab Emirates
| | - Aisha Abushelaibi
- Health Sciences Division, Abu Dhabi Women's College, Higher Colleges of Technology, 41012, Abu Dhabi, United Arab Emirates
| | - Swee-Hua-Erin Lim
- Health Sciences Division, Abu Dhabi Women's College, Higher Colleges of Technology, 41012, Abu Dhabi, United Arab Emirates. .,Perdana University-Royal College of Surgeons in Ireland School of Medicine, Perdana University, MAEPS Building, 43400, Serdang, Selangor, Malaysia.
| | - Kok-Song Lai
- Health Sciences Division, Abu Dhabi Women's College, Higher Colleges of Technology, 41012, Abu Dhabi, United Arab Emirates.
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Gutiérrez-Pliego LE, Martínez-Carrillo BE, Reséndiz-Albor AA, Valdés-Ramos R. Effect on Adipose Tissue of Diabetic Mice Supplemented with n-3 Fatty Acids Extracted from Microalgae. Endocr Metab Immune Disord Drug Targets 2020; 20:728-735. [PMID: 32053089 PMCID: PMC7360907 DOI: 10.2174/1871530320666200213111452] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 11/22/2019] [Accepted: 11/22/2019] [Indexed: 12/04/2022]
Abstract
BACKGROUND Type 2 Diabetes Mellitus (T2DM) is considered a chronic noncommunicable disease in which oxidative stress is expected as a result of hyperglycaemia. One of the most recent approaches is the study of microalgae fatty acids and their possible antioxidant effect. OBJECTIVE This study aimed to analyse the effect of supplementation with n-3 fatty acids extracted from microalgae on the total antioxidant capacity (TAC) and lipid peroxidation of adipose tissue and plasma from diabetic (db/db) and healthy (CD1) mice. METHODS Mice were supplemented with lyophilized n-3 fatty acids extracted from microalgae or added to the diet, from week 8 to 16. TAC assay and Thiobarbituric Acid Reactive Substances assay (TBARS) were performed on adipose tissue and plasma samples. RESULTS The supplementation of lyophilized n-3 fatty acids from microalgae increased the total antioxidant capacity in adipose tissue of diabetic mice (615.67μM Trolox equivalents vs 405.02μM Trolox equivalents from control mice, p<0.01) and in the plasma of healthy mice (1132.97±85.75μM Trolox equivalents vs 930.64±32μM Trolox equivalents from modified diet mice, p<0.01). There was no significant effect on lipid peroxidation on both strains. CONCLUSION The use of n-3 fatty acids extracted from microalgae could be a useful strategy to improve total antioxidant capacity in T2DM.
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Affiliation(s)
| | | | | | - Roxana Valdés-Ramos
- Address correspondence to this author at the Faculty of Medicine, Universidad Autónoma del Estado de México, Paseo Tollocan esq. Jesús Carranza, Col. Moderna de la Cruz, Toluca, Edo. Mex, 50180, Mexico; Tel/Fax: +52-722-217-4831; E-mails:
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153
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Bacellar IL, Baptista MS. Mechanisms of Photosensitized Lipid Oxidation and Membrane Permeabilization. ACS OMEGA 2019; 4:21636-21646. [PMID: 31891041 PMCID: PMC6933592 DOI: 10.1021/acsomega.9b03244] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 11/28/2019] [Indexed: 05/05/2023]
Abstract
Lipid oxidation encompasses chemical transformations affecting animals and plants in many ways, and light is one of the most common triggers of lipid oxidation in our habitat. Still, the molecular mechanisms and biological consequences of photoinduced lipid oxidation were only recently understood at the molecular level. In this review, we focus on the main mechanisms of photosensitized lipid oxidation and membrane permeabilization, dissecting the consequences of both singlet oxygen and contact-dependent pathways and discussing how these reactions contribute to chemical and biophysical changes in lipid membranes. We aim to enable scientists to develop novel and more efficient photosensitizers in photomedicine, as well as better strategies for sun protection.
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154
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Mesías AC, Garg NJ, Zago MP. Redox Balance Keepers and Possible Cell Functions Managed by Redox Homeostasis in Trypanosoma cruzi. Front Cell Infect Microbiol 2019; 9:435. [PMID: 31921709 PMCID: PMC6932984 DOI: 10.3389/fcimb.2019.00435] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 12/05/2019] [Indexed: 12/11/2022] Open
Abstract
The toxicity of oxygen and nitrogen reactive species appears to be merely the tip of the iceberg in the world of redox homeostasis. Now, oxidative stress can be seen as a two-sided process; at high concentrations, it causes damage to biomolecules, and thus, trypanosomes have evolved a strong antioxidant defense system to cope with these stressors. At low concentrations, oxidants are essential for cell signaling, and in fact, the oxidants/antioxidants balance may be able to trigger different cell fates. In this comprehensive review, we discuss the current knowledge of the oxidant environment experienced by T. cruzi along the different phases of its life cycle, and the molecular tools exploited by this pathogen to deal with oxidative stress, for better or worse. Further, we discuss the possible redox-regulated processes that could be governed by this oxidative context. Most of the current research has addressed the importance of the trypanosomes' antioxidant network based on its detox activity of harmful species; however, new efforts are necessary to highlight other functions of this network and the mechanisms underlying the fine regulation of the defense machinery, as this represents a master key to hinder crucial pathogen functions. Understanding the relevance of this balance keeper program in parasite biology will give us new perspectives to delineate improved treatment strategies.
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Affiliation(s)
- Andrea C Mesías
- Instituto de Patología Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Universidad Nacional de Salta, Salta, Argentina
| | - Nisha J Garg
- Department of Microbiology and Immunology, Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, United States
| | - M Paola Zago
- Instituto de Patología Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Universidad Nacional de Salta, Salta, Argentina
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155
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Modifying the Tumour Microenvironment: Challenges and Future Perspectives for Anticancer Plasma Treatments. Cancers (Basel) 2019; 11:cancers11121920. [PMID: 31810265 PMCID: PMC6966454 DOI: 10.3390/cancers11121920] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 11/24/2019] [Accepted: 11/25/2019] [Indexed: 02/07/2023] Open
Abstract
Tumours are complex systems formed by cellular (malignant, immune, and endothelial cells, fibroblasts) and acellular components (extracellular matrix (ECM) constituents and secreted factors). A close interplay between these factors, collectively called the tumour microenvironment, is required to respond appropriately to external cues and to determine the treatment outcome. Cold plasma (here referred as ‘plasma’) is an emerging anticancer technology that generates a unique cocktail of reactive oxygen and nitrogen species to eliminate cancerous cells via multiple mechanisms of action. While plasma is currently regarded as a local therapy, it can also modulate the mechanisms of cell-to-cell and cell-to-ECM communication, which could facilitate the propagation of its effect in tissue and distant sites. However, it is still largely unknown how the physical interactions occurring between cells and/or the ECM in the tumour microenvironment affect the plasma therapy outcome. In this review, we discuss the effect of plasma on cell-to-cell and cell-to-ECM communication in the context of the tumour microenvironment and suggest new avenues of research to advance our knowledge in the field. Furthermore, we revise the relevant state-of-the-art in three-dimensional in vitro models that could be used to analyse cell-to-cell and cell-to-ECM communication and further strengthen our understanding of the effect of plasma in solid tumours.
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156
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Cen J, Cui L, Duan Y, Zhang H, Lin Y, Zheng J, Lu S. Effects of palytoxins extracted from Ostreopsis ovata on the oxidative stress and immune responses in Pacific white shrimp Litopenaeus vannamei. FISH & SHELLFISH IMMUNOLOGY 2019; 95:670-678. [PMID: 31689553 DOI: 10.1016/j.fsi.2019.11.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 10/25/2019] [Accepted: 11/01/2019] [Indexed: 06/10/2023]
Abstract
Palytoxins (PLTXs) are a group of complex and poisonous marine natural products that are toxic to marine life and even human beings. In the present study, the oxidative stress and immune response in the hepatopancreas and gills of Litopenaeus vannamei were assessed for 72 h after injection with PLTX extracts. Chemical and physiological parameters, e.g., the respiratory burst (O2-), activities of antioxidant enzymes, oxidative damage to lipids, carbonylation of proteins, and immune gene mRNA expression levels, were analysed. The results showed that the PLTX extract was not fatal to the shrimp but could reduce their mobility. The O2- levels in the gills gradually increased after exposure to PLTX extracts and were significantly higher than those in the control from 6 to 72 h. The malondialdehyde content, lipid peroxidation, protein carbonyl levels, and total antioxidant capacity in the gills all peaked at 12 h. At the same time, the gills were loosely connected, there was a clear disintegration of the epithelial tissue, and the stratum corneum disappeared after 12 h. In addition, compared to those in the control group, the PLTX extract treatment increased the O2- content, malondialdehyde content, lipid peroxidation, and protein carbonyl levels from 12 to 72 h, 24-48 h, 12-24 h, and 12-72 h after injection in the hepatopancreas of the shrimp, respectively. Both the Crustin and Toll gene expression levels significantly increased in the hepatopancreas compared to those in the control 6-72 h after injection of the toxin. In parallel, the expression levels of the manganese superoxide dismutase gene gradually decreased from 6 to 48 h and returned to normal levels after 72 h. Interestingly, the total antioxidant capacity also significantly increased compared to that in the control from 6 to 72 h. Our results indicate that although PLTX extracts cause lipid peroxidation and carbonylation of proteins in hepatopancreatic cells, leading to their damage, they did not cause a decrease in the total antioxidant capacity of the hepatopancreas.
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Affiliation(s)
- Jingyi Cen
- Key Laboratory of Aquatic Eutrophication and Control of Harmful Algae Blooms of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou, 510632, PR China
| | - Lei Cui
- Key Laboratory of Aquatic Eutrophication and Control of Harmful Algae Blooms of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou, 510632, PR China
| | - Yafei Duan
- Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture and Rural Affairs, Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510300, PR China.
| | - Hua Zhang
- Key Laboratory of Aquatic Eutrophication and Control of Harmful Algae Blooms of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou, 510632, PR China
| | - Yarou Lin
- Key Laboratory of Aquatic Eutrophication and Control of Harmful Algae Blooms of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou, 510632, PR China
| | - Jiping Zheng
- Key Laboratory of Aquatic Eutrophication and Control of Harmful Algae Blooms of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou, 510632, PR China
| | - Songhui Lu
- Key Laboratory of Aquatic Eutrophication and Control of Harmful Algae Blooms of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou, 510632, PR China.
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157
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Zhou R, Wang P, Guo Y, Dai X, Xiao S, Fang Z, Speight R, Thompson EW, Cullen PJ, Ostrikov KK. Prussian blue analogue nanoenzymes mitigate oxidative stress and boost bio-fermentation. NANOSCALE 2019; 11:19497-19505. [PMID: 31553036 DOI: 10.1039/c9nr04951g] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Oxidative stress in cells caused by the accumulation of reactive oxygen species (ROS) is a common cause of cell function degeneration, cell death and various diseases. Efficient, robust and inexpensive nanoparticles (nanoenzymes) capable of scavenging/detoxifying ROS even in harsh environments are attracting strong interest. Prussian blue analogues (PBAs), a prominent group of metalorganic nanoparticles (NPs) with the same cyanometalate structure as the traditional and commonly used Prussian blue (PB), have long been envisaged to mimic enzyme activities for ROS scavenging. However, their biological toxicity, especially potential effects on living beings during practical application, has not yet been fully investigated. Here we reveal the enzyme-like activity of FeCo-PBA NPs, and for the first time investigate the effects of FeCo-PBA on cell viability and growth. We elucidate the effect of the nanoenzyme on the ethanol-production efficacy of a typical model organism, the engineered industrial strain Saccharomyces cerevisiae. We further demonstrate that FeCo-PBA NPs have almost no cytotoxicity on the cells over a broad dosage range (0-100 μg mL-1), while clearly boosting the yeast fermentation efficiency by mitigating oxidative stress. Atmospheric pressure cold plasma (APCP) pretreatment is used as a multifunctional environmental stress produced by the plasma reactive species. While the plasma enhances the cellular uptake of NPs, FeCo-PBA NPs protect the cells from the oxidative stress induced by both the plasma and the fermentation processes. This synergistic effect leads to higher secondary metabolite yields and energy production. Collectively, this study confirms the positive effects of PBA nanoparticles in living cells through ROS scavenging, thus potentially opening new ways to control the cellular machinery in future nano-biotechnology and nano-biomedical applications.
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Affiliation(s)
- Renwu Zhou
- Institute of Health and Biomedical Innovation, School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, Brisbane QLD 4000, Australia. and Translational Research Institute, Brisbane, QLD 4102, Australia and School of Chemical and Biomolecular Engineering, The University of Sydney, NSW 2006, Australia
| | - Peiyu Wang
- Institute of Health and Biomedical Innovation, School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, Brisbane QLD 4000, Australia. and Translational Research Institute, Brisbane, QLD 4102, Australia
| | - Yanru Guo
- Beijing National Laboratory for Molecular Sciences (BNLMS), College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xiaofeng Dai
- Wuxi School of Medicine, Jiangnan University, 214122, China
| | - Shaoqing Xiao
- Engineering Research Center of IoT Technology Applications (Ministry of Education), Department of Electronic Engineering, Jiangnan University, Wuxi 214122, China
| | - Zhi Fang
- College of Electrical Engineering and Control Science, Nanjing Tech University, Nanjing 210009, China.
| | - Robert Speight
- Institute of Health and Biomedical Innovation, School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, Brisbane QLD 4000, Australia.
| | - Erik W Thompson
- Institute of Health and Biomedical Innovation, School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, Brisbane QLD 4000, Australia. and Translational Research Institute, Brisbane, QLD 4102, Australia
| | - Patrick J Cullen
- School of Chemical and Biomolecular Engineering, The University of Sydney, NSW 2006, Australia
| | - Kostya Ken Ostrikov
- Institute of Health and Biomedical Innovation, School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, Brisbane QLD 4000, Australia. and Translational Research Institute, Brisbane, QLD 4102, Australia
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158
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159
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Lu S, Liu H, Jin C, Li Q, Guo L. An efficient and comprehensive plant glycerolipids analysis approach based on high-performance liquid chromatography-quadrupole time-of-flight mass spectrometer. PLANT DIRECT 2019; 3:e00183. [PMID: 31832598 PMCID: PMC6858605 DOI: 10.1002/pld3.183] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 10/24/2019] [Accepted: 10/29/2019] [Indexed: 05/14/2023]
Abstract
In past two decades, numerous lipidomics approaches based on mass spectrometry with or without liquid chromatography separation have been established for identification and quantification of lipids in plants. In this study, we developed an efficient and comprehensive lipidomics approach based on UPLC with an Acquity UPLCTM BEH C18 column coupled to TripleTOF using ESI in positive ion mode and MS/MSALL scan for data collection. Lipid extract was prepared to 2 mg/ml solution according to dry tissue weight and mixed with 13 kinds of internal standards including PA, PC, PE, and PG. Each analysis required single injection of 5-10 μl lipid solvent and completed in 32 min. A target method dataset was generated using the LipidView software for prediction of the accurate mass of target lipid species. The dataset was uploaded into the PeakView to create processing datasets to search target lipid species, which achieved batch data processing of multiple samples for lipid species-specific identification and quantification. As proof of concept, we profiled the lipids of different tissues of rapeseed. Thirteen lipid classes including 218 glycerolipids were identified including 46 TAGs, 15 DAGs, 20 PCs, 24 PEs, 13 PGs, 14 PIs, 26 PSs, 12 PAs, 16 MGDGs, 16 DGDGs, 6 LysoPCs, 5 LysoPEs, and 5 LysoPGs. Together, our approach permits the analysis of glycerolipids in plant tissues with simplicity in sample analysis and data processing using UPLC-TripleTOF.
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Affiliation(s)
- Shaoping Lu
- National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanChina
| | - Hongbo Liu
- National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanChina
| | - Cheng Jin
- National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanChina
| | - Qing Li
- National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanChina
| | - Liang Guo
- National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanChina
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160
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Tsubone TM, Baptista MS, Itri R. Understanding membrane remodelling initiated by photosensitized lipid oxidation. Biophys Chem 2019; 254:106263. [DOI: 10.1016/j.bpc.2019.106263] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 08/13/2019] [Accepted: 09/03/2019] [Indexed: 12/19/2022]
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161
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Oliveira MC, Yusupov M, Bogaerts A, Cordeiro RM. Molecular dynamics simulations of mechanical stress on oxidized membranes. Biophys Chem 2019; 254:106266. [PMID: 31629220 DOI: 10.1016/j.bpc.2019.106266] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 09/09/2019] [Accepted: 09/12/2019] [Indexed: 12/27/2022]
Abstract
Biomembranes are under constant attack of free radicals that may lead to lipid oxidation in conditions of oxidative stress. The products generated during lipid oxidation are responsible for structural and dynamical changes which may jeopardize the membrane function. For instance, the local rearrangements of oxidized lipid molecules may induce membrane rupture. In this study, we investigated the effects of mechanical stress on oxidized phospholipid bilayers (PLBs). Model bilayers were stretched until pore formation (or poration) using non-equilibrium molecular dynamics simulations. We studied single-component homogeneous membranes composed of lipid oxidation products, as well as two-component heterogeneous membranes with coexisting native and oxidized domains. In homogeneous membranes, the oxidation products with -OH and -OOH groups reduced the areal strain required for pore formation, whereas the oxidation product with O group behaved similarly to the native membrane. In heterogeneous membranes composed of oxidized and non-oxidized domains, we tested the hypothesis according to which poration may be facilitated at the domain interface region. However, results were inconclusive due to their large statistical variance and sensitivity to simulation setup parameters. We pointed out important technical issues that need to be considered in future simulations of mechanically-induced poration of heterogeneous membranes. This research is of interest for photodynamic therapy and plasma medicine, because ruptured and intact plasma membranes are experimentally considered hallmarks of necrotic and apoptotic cell death.
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Affiliation(s)
- Maria C Oliveira
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Avenida dos Estados 5001, CEP 09210-580 Santo André, SP, Brazil
| | - Maksudbek Yusupov
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, Universiteitsplein 1, B-2610 Antwerp, Belgium
| | - Annemie Bogaerts
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, Universiteitsplein 1, B-2610 Antwerp, Belgium
| | - Rodrigo M Cordeiro
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Avenida dos Estados 5001, CEP 09210-580 Santo André, SP, Brazil.
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162
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ROS from Physical Plasmas: Redox Chemistry for Biomedical Therapy. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:9062098. [PMID: 31687089 PMCID: PMC6800937 DOI: 10.1155/2019/9062098] [Citation(s) in RCA: 117] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 07/17/2019] [Accepted: 08/25/2019] [Indexed: 12/24/2022]
Abstract
Physical plasmas generate unique mixes of reactive oxygen and nitrogen species (RONS or ROS). Only a bit more than a decade ago, these plasmas, operating at body temperature, started to be considered for medical therapy with considerably little mechanistic redox chemistry or biomedical research existing on that topic at that time. Today, a vast body of evidence is available on physical plasma-derived ROS, from their spatiotemporal resolution in the plasma gas phase to sophisticated chemical and biochemical analysis of these species once dissolved in liquids. Data from in silico analysis dissected potential reaction pathways of plasma-derived reactive species with biological membranes, and in vitro and in vivo experiments in cell and animal disease models identified molecular mechanisms and potential therapeutic benefits of physical plasmas. In 2013, the first medical plasma systems entered the European market as class IIa devices and have proven to be a valuable resource in dermatology, especially for supporting the healing of chronic wounds. The first results in cancer patients treated with plasma are promising, too. Due to the many potentials of this blooming new field ahead, there is a need to highlight the main concepts distilled from plasma research in chemistry and biology that serve as a mechanistic link between plasma physics (how and which plasma-derived ROS are produced) and therapy (what is the medical benefit). This inevitably puts cellular membranes in focus, as these are the natural interphase between ROS produced by plasmas and translation of their chemical reactivity into distinct biological responses.
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163
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Ileri Ercan N. Understanding Interactions of Curcumin with Lipid Bilayers: A Coarse-Grained Molecular Dynamics Study. J Chem Inf Model 2019; 59:4413-4426. [PMID: 31545601 DOI: 10.1021/acs.jcim.9b00650] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The interactions of curcumin with various lipid bilayers (POPC, DOPC, oxidized POPC, and oxidized DOPC) and model biomembranes (symmetric bacteria and yeast plasma membranes, as well as asymmetric mammalian plasma membrane) are investigated. A nonlinear thinning effect of curcumin with respect to its concentration is demonstrated in PC membranes and in the yeast. Curcumin induces asymmetry to the symmetric yeast membranes but reduces the degree of asymmetry of the mammalian plasma membranes when the molecule is placed facing the outer leaflets. The molecule is found to diffuse through oxidized PC bilayers, POPC bilayers at a curcumin to lipid ratio C/L = 1/5, yeast membranes at C/L = 1/100, and the mammalian plasma membranes at C/L = 1/5 and when the molecule placed facing the outer leaflets. The results of this work demonstrate that the lipid type, the lipid distribution, and curcumin amount play a critical role in defining the interactions of curcumin with the lipids and their transport behavior through the bilayers.
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Affiliation(s)
- Nazar Ileri Ercan
- Chemical Engineering Department , Bogazici University , Bebek 34342 , Istanbul , Turkey
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164
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Effect of oxidative stress on cystine transportation by xC‾ antiporter. Arch Biochem Biophys 2019; 674:108114. [PMID: 31557465 DOI: 10.1016/j.abb.2019.108114] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 09/19/2019] [Accepted: 09/22/2019] [Indexed: 12/15/2022]
Abstract
We performed computer simulations to investigate the effect of oxidation on the extracellular cystine (CYC) uptake by the xC- antiporter. The latter is important for killing of cancer cells. Specifically, applying molecular dynamics (MD) simulations we studied the transport of CYC across xCT, i.e., the light subunit of the xC- antiporter, in charge of bidirectional transport of CYC and glutamate. We considered the outward facing (OF) configuration of xCT, and to study the effect of oxidation, we modified the Cys327 residue, located in the vicinity of the extracellular milieu, to cysteic acid (CYO327). Our computational results showed that oxidation of Cys327 results in a free energy barrier for CYC translocation, thereby blocking the access of CYC to the substrate binding site of the OF system. The formation of the energy barrier was found to be due to the conformational changes in the channel. Analysis of the MD trajectories revealed that the reorganization of the side chains of the Tyr244 and CYO327 residues play a critical role in the OF channel blocking. Indeed, the calculated distance between Tyr244 and either Cys327 or CYO327 showed a narrowing of the channel after oxidation. The obtained free energy barrier for CYC translocation was found to be 33.9kJmol-1, indicating that oxidation of Cys327, by e.g., cold atmospheric plasma, is more effective in inhibiting the xC- antiporter than in the mutation of this amino acid to Ala (yielding a barrier of 32.4kJmol-1). The inhibition of the xC- antiporter may lead to Cys starvation in some cancer cells, eventually resulting in cancer cell death.
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165
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Biscop E, Lin A, Boxem WV, Loenhout JV, Backer JD, Deben C, Dewilde S, Smits E, Bogaerts AA. Influence of Cell Type and Culture Medium on Determining Cancer Selectivity of Cold Atmospheric Plasma Treatment. Cancers (Basel) 2019; 11:E1287. [PMID: 31480642 PMCID: PMC6770138 DOI: 10.3390/cancers11091287] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 08/28/2019] [Accepted: 08/28/2019] [Indexed: 12/20/2022] Open
Abstract
Increasing the selectivity of cancer treatments is attractive, as it has the potential to reduce side-effects of therapy. Cold atmospheric plasma (CAP) is a novel cancer treatment that disrupts the intracellular oxidative balance. Several reports claim CAP treatment to be selective, but retrospective analysis of these studies revealed discrepancies in several biological factors and culturing methods. Before CAP can be conclusively stated as a selective cancer treatment, the importance of these factors must be investigated. In this study, we evaluated the influence of the cell type, cancer type, and cell culture medium on direct and indirect CAP treatment. Comparison of cancerous cells with their non-cancerous counterparts was performed under standardized conditions to determine selectivity of treatment. Analysis of seven human cell lines (cancerous: A549, U87, A375, and Malme-3M; non-cancerous: BEAS-2B, HA, and HEMa) and five different cell culture media (DMEM, RPMI1640, AM, BEGM, and DCBM) revealed that the tested parameters strongly influence indirect CAP treatment, while direct treatment was less affected. Taken together, the results of our study demonstrate that cell type, cancer type, and culturing medium must be taken into account before selectivity of CAP treatment can be claimed and overlooking these parameters can easily result in inaccurate conclusions of selectivity.
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Affiliation(s)
- Eline Biscop
- PLASMANT Research Group, Department of Chemistry, University of Antwerp, Antwerp 2610, Belgium
| | - Abraham Lin
- PLASMANT Research Group, Department of Chemistry, University of Antwerp, Antwerp 2610, Belgium
- Center for Oncological Research, University of Antwerp, Antwerp 2610, Belgium
| | - Wilma Van Boxem
- PLASMANT Research Group, Department of Chemistry, University of Antwerp, Antwerp 2610, Belgium
| | - Jinthe Van Loenhout
- Center for Oncological Research, University of Antwerp, Antwerp 2610, Belgium
| | - Joey De Backer
- Department of Biomedical Sciences, University of Antwerp, Antwerp 2610, Belgium
| | - Christophe Deben
- Center for Oncological Research, University of Antwerp, Antwerp 2610, Belgium
| | - Sylvia Dewilde
- Department of Biomedical Sciences, University of Antwerp, Antwerp 2610, Belgium
| | - Evelien Smits
- Center for Oncological Research, University of Antwerp, Antwerp 2610, Belgium
| | - And Annemie Bogaerts
- PLASMANT Research Group, Department of Chemistry, University of Antwerp, Antwerp 2610, Belgium.
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166
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Ouchi Y, Unoura K, Nabika H. Role of Oxidized Lipids in Permeation of H 2O 2 Through a Lipid Membrane: Molecular Mechanism of an Inhibitor to Promoter Switch. Sci Rep 2019; 9:12497. [PMID: 31467337 PMCID: PMC6715804 DOI: 10.1038/s41598-019-48954-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 08/09/2019] [Indexed: 01/10/2023] Open
Abstract
H2O2 permeation through a cell membrane significantly affects living organisms, and permeation is controlled by the physico-chemical nature of lipids and other membrane components. We investigated the molecular relationship between H2O2 permeation and lipid membrane structure using three oxidized lipids. POVPC and PazePC act as intra- and inter-molecular permeation promoters, respectively; however, their underlying mechanisms were different. The former changed the partition equilibrium, while the latter changed the permeation pathway. PoxnoPC inhibited permeation under our experimental conditions via an intra-molecular configuration change. Thus, both intra- and inter-molecular processes were found to control the role of oxidized lipids as inhibitors and promoters towards H2O2 permeation with different mechanisms depending on structure and composition. Here, we identified two independent H2O2 permeation routes: (i) permeation through lipid membrane with increased partition coefficient by intra-molecular configurational change and (ii) diffusion through pores (water channels) formed by inter-molecular configurational change of oxidized lipids. We provide new insight into how biological cells control permeation of molecules through intra- and inter-molecular configurational changes in the lipid membrane. Thus, by employing a rational design for both oxidized lipids and other components, the permeation behaviour of H2O2 and other ions and molecules through a lipid membrane could be controlled.
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Affiliation(s)
- Yuya Ouchi
- Department of Material and Biological Chemistry, Faculty of Science, Yamagata University, 1-4-12 Kojirakawa, Yamagata, 990-8560, Japan
| | - Kei Unoura
- Department of Material and Biological Chemistry, Faculty of Science, Yamagata University, 1-4-12 Kojirakawa, Yamagata, 990-8560, Japan
| | - Hideki Nabika
- Department of Material and Biological Chemistry, Faculty of Science, Yamagata University, 1-4-12 Kojirakawa, Yamagata, 990-8560, Japan.
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167
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Boehm D, Bourke P. Safety implications of plasma-induced effects in living cells - a review of in vitro and in vivo findings. Biol Chem 2019; 400:3-17. [PMID: 30044756 DOI: 10.1515/hsz-2018-0222] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 07/17/2018] [Indexed: 12/20/2022]
Abstract
Cold atmospheric plasma is a versatile new tool in the biomedical field with applications ranging from disinfection, wound healing and tissue regeneration to blood coagulation, and cancer treatment. Along with improved insights into the underlying physical, chemical and biological principles, plasma medicine has also made important advances in the introduction into the clinic. However, in the absence of a standard plasma 'dose' definition, the diversity of the field poses certain difficulties in terms of comparability of plasma devices, treatment parameters and resulting biological effects, particularly with regards to the question of what constitutes a safe plasma application. Data from various in vitro cytotoxic and genotoxic studies along with in vivo findings from animal and human trials are reviewed to provide an overview of the current state of knowledge on the safety of plasma for biological applications. Treatment parameters employed in clinical studies were well tolerated but intense treatment conditions can also induce tissue damage or genotoxicity. There is a need identified to establish both guidelines and safety limits that ensure an absence of (long-term) side effects and to define treatments as safe for applications, where cell stimulation is desired, e.g. in wound healing, or those aimed at inducing cell death in the treatment of cancer.
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Affiliation(s)
- Daniela Boehm
- School of Food Science and Environmental Health, Plasma Research Group, College of Sciences and Health, Dublin Institute of Technology, Dublin 1, Ireland
| | - Paula Bourke
- School of Food Science and Environmental Health, Plasma Research Group, College of Sciences and Health, Dublin Institute of Technology, Dublin 1, Ireland
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168
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Shaw P, Kumar N, Hammerschmid D, Privat-Maldonado A, Dewilde S, Bogaerts A. Synergistic Effects of Melittin and Plasma Treatment: A Promising Approach for Cancer Therapy. Cancers (Basel) 2019; 11:cancers11081109. [PMID: 31382579 PMCID: PMC6721819 DOI: 10.3390/cancers11081109] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 07/30/2019] [Accepted: 08/01/2019] [Indexed: 12/31/2022] Open
Abstract
Melittin (MEL), a small peptide component of bee venom, has been reported to exhibit anti-cancer effects in vitro and in vivo. However, its clinical applicability is disputed because of its non-specific cytotoxicity and haemolytic activity in high treatment doses. Plasma-treated phosphate buffered saline solution (PT-PBS), a solution rich in reactive oxygen and nitrogen species (RONS) can disrupt the cell membrane integrity and induce cancer cell death through oxidative stress-mediated pathways. Thus, PT-PBS could be used in combination with MEL to facilitate its access into cancer cells and to reduce the required therapeutic dose. The aim of our study is to determine the reduction of the effective dose of MEL required to eliminate cancer cells by its combination with PT-PBS. For this purpose, we have optimised the MEL threshold concentration and tested the combined treatment of MEL and PT-PBS on A375 melanoma and MCF7 breast cancer cells, using in vitro, in ovo and in silico approaches. We investigated the cytotoxic effect of MEL and PT-PBS alone and in combination to reveal their synergistic cytological effects. To support the in vitro and in ovo experiments, we showed by computer simulations that plasma-induced oxidation of the phospholipid bilayer leads to a decrease of the free energy barrier for translocation of MEL in comparison with the non-oxidized bilayer, which also suggests a synergistic effect of MEL with plasma induced oxidation. Overall, our findings suggest that MEL in combination with PT-PBS can be a promising combinational therapy to circumvent the non-specific toxicity of MEL, which may help for clinical applicability in the future.
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Affiliation(s)
- Priyanka Shaw
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, BE-2610 Wilrijk-Antwerp, Belgium
| | - Naresh Kumar
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, BE-2610 Wilrijk-Antwerp, Belgium.
| | - Dietmar Hammerschmid
- Laboratory of Protein Science, Proteomics & Epigenetic Signaling, Department of Biomedical Sciences, University of Antwerp, BE-2610 Wilrijk-Antwerp, Belgium
| | - Angela Privat-Maldonado
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, BE-2610 Wilrijk-Antwerp, Belgium
| | - Sylvia Dewilde
- Laboratory of Protein Science, Proteomics & Epigenetic Signaling, Department of Biomedical Sciences, University of Antwerp, BE-2610 Wilrijk-Antwerp, Belgium
| | - Annemie Bogaerts
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, BE-2610 Wilrijk-Antwerp, Belgium.
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169
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Plasma for cancer treatment: How can RONS penetrate through the cell membrane? Answers from computer modeling. Front Chem Sci Eng 2019. [DOI: 10.1007/s11705-018-1786-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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170
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Abstract
The rapid advances in the field of cold plasma research led to the development of many plasma jets for various purposes. The COST plasma jet was created to set a comparison standard between different groups in Europe and the world. Its physical and chemical properties are well studied, and diagnostics procedures are developed and benchmarked using this jet. In recent years, it has been used for various research purposes. Here, we present a brief overview of the reported applications of the COST plasma jet. Additionally, we discuss the chemistry of the plasma-liquid systems with this plasma jet, and the properties that make it an indispensable system for plasma research.
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171
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Wu Y, Chen Z, Darwish WS, Terada K, Chiba H, Hui SP. Choline and Ethanolamine Plasmalogens Prevent Lead-Induced Cytotoxicity and Lipid Oxidation in HepG2 Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:7716-7725. [PMID: 31131603 DOI: 10.1021/acs.jafc.9b02485] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Plasmalogens derived from dietary phospholipids are considered to be potential protectors against oxidation-related disorders, while lead (Pb) is an environmental contaminant worldwide and is known to induce oxidative stress. However, the protective and antilipid oxidative effects of individual plasmalogen species against Pb damage have received little attention. In this study, six plasmalogen species (with either choline or ethanolamine as the headgroup and p16:0/18:1, p16:0/18:2, or p16:0/20:5 as the side chains) were evaluated in human hepatoma cells. Plasmalogen species showed a remarkable recovery in cell viability as well as elimination of reactive oxygen species and suppressed the accumulation of phosphatidylcholine hydroperoxides (from 63.6 ± 1.8% to 80.3 ± 2.9%) and phosphatidylethanolamine hydroperoxides (from 25.7 ± 9.3% to 76.1 ± 3.7%). Moreover, plasmalogens significantly upregulated the gene expression levels of a series of antioxidant enzymes that are regulated via the Nrf-2-dependent pathway. This study suggested that choline and ethanolamine plasmalogens could prevent Pb-induced cytotoxicity and lipid oxidation in HepG2 cells.
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Affiliation(s)
- Yue Wu
- Faculty of Health Sciences , Hokkaido University , Kita-12, Nishi-5, Kita-ku , Sapporo 060-0812 , Japan
| | - Zhen Chen
- Faculty of Health Sciences , Hokkaido University , Kita-12, Nishi-5, Kita-ku , Sapporo 060-0812 , Japan
| | - Wageh S Darwish
- Faculty of Health Sciences , Hokkaido University , Kita-12, Nishi-5, Kita-ku , Sapporo 060-0812 , Japan
- Food Control Department, Faculty of Veterinary Medicine , Zagazig University , Zagazig 44519 , Egypt
| | - Koh Terada
- Faculty of Health Sciences , Hokkaido University , Kita-12, Nishi-5, Kita-ku , Sapporo 060-0812 , Japan
| | - Hitoshi Chiba
- Faculty of Health Sciences , Hokkaido University , Kita-12, Nishi-5, Kita-ku , Sapporo 060-0812 , Japan
- Department of Nutrition , Sapporo University of Health Sciences , Nakanuma Nishi-4-2-1-15, Higashi , Sapporo 007-0894 , Japan
| | - Shu-Ping Hui
- Faculty of Health Sciences , Hokkaido University , Kita-12, Nishi-5, Kita-ku , Sapporo 060-0812 , Japan
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172
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Hu Y, Zhao T, Zou L, Wang X, Zhang Y. Molecular dynamics simulations of membrane properties affected by plasma ROS based on the GROMOS force field. Biophys Chem 2019; 253:106214. [PMID: 31272076 DOI: 10.1016/j.bpc.2019.106214] [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: 03/07/2019] [Revised: 06/25/2019] [Accepted: 06/25/2019] [Indexed: 12/22/2022]
Abstract
Cold atmospheric plasma (CAP) has attracted substantial attention in the field of medical disinfection because its main components, reactive oxygen species (ROS), have a strong destructive effect on various cell components. The cell membrane plays an important role in maintaining proper cellular function by blocking harmful substances such as ROS. In this paper, we used molecular dynamics simulations to study the behaviour of different ROS at the membrane-water interface. The results showed that the cell membrane presented a weak barrier to hydrophobic ROS (O2) but effectively prevented hydrophilic ROS (OH, HO2, H2O2) from entering the cell. The plasma treatment significantly enhanced the permeability of the cell membrane to HO2, while the energetic barrier to other types of ROS changed only slightly. O2 very likely stopped in the centre of the lipid bilayer when crossing the membrane and there attacked the unsaturated region of the phospholipid. Cholesterol was most likely oxidized by HO2, causing a condensing effect that destroyed the integrity and fluidity of the cell membrane. The study also found that large amounts of ROS decreased the thickness of the cell membrane, and the phospholipid arrangement became disordered.
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Affiliation(s)
- Yujia Hu
- School of Electrical Engineering, Shandong University, Ji'nan, Shandong 250061, People's Republic of China
| | - Tong Zhao
- School of Electrical Engineering, Shandong University, Ji'nan, Shandong 250061, People's Republic of China.
| | - Liang Zou
- School of Electrical Engineering, Shandong University, Ji'nan, Shandong 250061, People's Republic of China
| | - Xiaolong Wang
- School of Electrical Engineering, Shandong University, Ji'nan, Shandong 250061, People's Republic of China
| | - Yuantao Zhang
- School of Electrical Engineering, Shandong University, Ji'nan, Shandong 250061, People's Republic of China
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173
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Transport of Reactive Oxygen and Nitrogen Species across Aquaporin: A Molecular Level Picture. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:2930504. [PMID: 31316715 PMCID: PMC6604302 DOI: 10.1155/2019/2930504] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Accepted: 05/22/2019] [Indexed: 12/28/2022]
Abstract
Aquaporins (AQPs) are transmembrane proteins that conduct not only water molecules across the cell membrane but also other solutes, such as reactive oxygen and nitrogen species (RONS), produced (among others) by cold atmospheric plasma (CAP). These RONS may induce oxidative stress in the cell interior, which plays a role in cancer treatment. The underlying mechanisms of the transport of RONS across AQPs, however, still remain obscure. We apply molecular dynamics simulations to investigate the permeation of both hydrophilic (H2O2 and OH) and hydrophobic (NO2 and NO) RONS through AQP1. Our simulations show that these RONS can all penetrate across the pores of AQP1. The permeation free energy barrier of OH and NO is lower than that of H2O2 and NO2, indicating that these radicals may have easier access to the pore interior and interact with the amino acid residues of AQP1. We also study the effect of RONS-induced oxidation of both the phospholipids and AQP1 (i.e., sulfenylation of Cys191) on the transport of the above-mentioned RONS across AQP1. Both lipid and protein oxidation seem to slightly increase the free energy barrier for H2O2 and NO2 permeation, while for OH and NO, we do not observe a strong effect of oxidation. The simulation results help to gain insight in the underlying mechanisms of the noticeable rise of CAP-induced RONS in cancer cells, thereby improving our understanding on the role of AQPs in the selective anticancer capacity of CAP.
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174
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Šimončicová J, Kryštofová S, Medvecká V, Ďurišová K, Kaliňáková B. Technical applications of plasma treatments: current state and perspectives. Appl Microbiol Biotechnol 2019; 103:5117-5129. [DOI: 10.1007/s00253-019-09877-x] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/25/2019] [Accepted: 04/26/2019] [Indexed: 02/07/2023]
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175
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Yasumoto T, Takamura Y, Tsuji M, Watanabe-Nakayama T, Imamura K, Inoue H, Nakamura S, Inoue T, Kimura A, Yano S, Nishijo H, Kiuchi Y, Teplow DB, Ono K. High molecular weight amyloid β 1-42 oligomers induce neurotoxicity via plasma membrane damage. FASEB J 2019; 33:9220-9234. [PMID: 31084283 DOI: 10.1096/fj.201900604r] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Amyloid β-protein (Aβ) molecules tend to aggregate and subsequently form low MW (LMW) oligomers, high MW (HMW) aggregates such as protofibrils, and ultimately fibrils. These Aβ species can generally form amyloid plaques implicated in the neurodegeneration of Alzheimer disease (AD), but therapies designed to reduce plaque load have not demonstrated clinical efficacy. Recent evidence implicates amyloid oligomers in AD neuropathology, but the precise mechanisms are uncertain. We examined the mechanisms of neuronal dysfunction from HMW-Aβ1-42 exposure by measuring membrane integrity, reactive oxygen species (ROS) generation, membrane lipid peroxidation, membrane fluidity, intracellular calcium regulation, passive membrane electrophysiological properties, and long-term potentiation (LTP). HMW-Aβ1-42 disturbed membrane integrity by inducing ROS generation and lipid peroxidation, resulting in decreased membrane fluidity, intracellular calcium dysregulation, depolarization, and impaired LTP. The damaging effects of HMW-Aβ1-42 were significantly greater than those of LMW-Aβ1-42. Therapeutic reduction of HMW-Aβ1-42 may prevent AD progression by ameliorating direct neuronal membrane damage.-Yasumoto, T., Takamura, Y., Tsuji, M., Watanabe-Nakayama, T., Imamura, K., Inoue, H., Nakamura, S., Inoue, T., Kimura, A., Yano, S., Nishijo, H., Kiuchi, Y., Teplow, D. B., Ono, K. High molecular weight amyloid β1-42 oligomers induce neurotoxicity via plasma membrane damage.
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Affiliation(s)
- Taro Yasumoto
- Division of Neurology, Department of Internal Medicine, School of Medicine, Showa University, Tokyo, Japan.,Department of Pharmacology, School of Medicine, Showa University, Tokyo, Japan
| | - Yusaku Takamura
- System Emotional Science, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Mayumi Tsuji
- Department of Pharmacology, School of Medicine, Showa University, Tokyo, Japan
| | - Takahiro Watanabe-Nakayama
- World Premier International Research Center Initiative (WPI)-Nano Life Science Institute, Kanazawa University, Kakuma-machi, Kanazawa, Japan
| | - Keiko Imamura
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan.,iPSC-based Drug Discovery and Development Team, Riken BioResource Research Center (BRC), Kyoto, Japan.,Medical-risk Avoidance based on iPS Cells Team, Riken Center for Advanced Intelligence Project (AIP), Kyoto, Japan
| | - Haruhisa Inoue
- Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, Japan.,iPSC-based Drug Discovery and Development Team, Riken BioResource Research Center (BRC), Kyoto, Japan.,Medical-risk Avoidance based on iPS Cells Team, Riken Center for Advanced Intelligence Project (AIP), Kyoto, Japan
| | - Shiro Nakamura
- Department of Oral Physiology, School of Dentistry, Showa University, Tokyo, Japan
| | - Tomio Inoue
- Department of Oral Physiology, School of Dentistry, Showa University, Tokyo, Japan
| | - Atsushi Kimura
- Division of Neurology, Department of Internal Medicine, School of Medicine, Showa University, Tokyo, Japan.,Department of Pharmacology, School of Medicine, Showa University, Tokyo, Japan
| | - Satoshi Yano
- Division of Neurology, Department of Internal Medicine, School of Medicine, Showa University, Tokyo, Japan
| | - Hisao Nishijo
- System Emotional Science, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama, Toyama, Japan
| | - Yuji Kiuchi
- Department of Pharmacology, School of Medicine, Showa University, Tokyo, Japan
| | - David B Teplow
- Department of Neurology, David Geffen School of Medicine at the University of California-Los Angeles (UCLA), Los Angeles, California, USA
| | - Kenjiro Ono
- Division of Neurology, Department of Internal Medicine, School of Medicine, Showa University, Tokyo, Japan
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176
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Enkavi G, Javanainen M, Kulig W, Róg T, Vattulainen I. Multiscale Simulations of Biological Membranes: The Challenge To Understand Biological Phenomena in a Living Substance. Chem Rev 2019; 119:5607-5774. [PMID: 30859819 PMCID: PMC6727218 DOI: 10.1021/acs.chemrev.8b00538] [Citation(s) in RCA: 175] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Indexed: 12/23/2022]
Abstract
Biological membranes are tricky to investigate. They are complex in terms of molecular composition and structure, functional over a wide range of time scales, and characterized by nonequilibrium conditions. Because of all of these features, simulations are a great technique to study biomembrane behavior. A significant part of the functional processes in biological membranes takes place at the molecular level; thus computer simulations are the method of choice to explore how their properties emerge from specific molecular features and how the interplay among the numerous molecules gives rise to function over spatial and time scales larger than the molecular ones. In this review, we focus on this broad theme. We discuss the current state-of-the-art of biomembrane simulations that, until now, have largely focused on a rather narrow picture of the complexity of the membranes. Given this, we also discuss the challenges that we should unravel in the foreseeable future. Numerous features such as the actin-cytoskeleton network, the glycocalyx network, and nonequilibrium transport under ATP-driven conditions have so far received very little attention; however, the potential of simulations to solve them would be exceptionally high. A major milestone for this research would be that one day we could say that computer simulations genuinely research biological membranes, not just lipid bilayers.
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Affiliation(s)
- Giray Enkavi
- Department
of Physics, University of
Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - Matti Javanainen
- Department
of Physics, University of
Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
- Institute
of Organic Chemistry and Biochemistry of the Czech Academy
of Sciences, Flemingovo naḿesti 542/2, 16610 Prague, Czech Republic
- Computational
Physics Laboratory, Tampere University, P.O. Box 692, FI-33014 Tampere, Finland
| | - Waldemar Kulig
- Department
of Physics, University of
Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - Tomasz Róg
- Department
of Physics, University of
Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
- Computational
Physics Laboratory, Tampere University, P.O. Box 692, FI-33014 Tampere, Finland
| | - Ilpo Vattulainen
- Department
of Physics, University of
Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
- Computational
Physics Laboratory, Tampere University, P.O. Box 692, FI-33014 Tampere, Finland
- MEMPHYS-Center
for Biomembrane Physics
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177
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Abdel-Magied N, Shedid SM, Ahmed AG. Mitigating effect of biotin against irradiation-induced cerebral cortical and hippocampal damage in the rat brain tissue. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:13441-13452. [PMID: 30911963 DOI: 10.1007/s11356-019-04806-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 03/06/2019] [Indexed: 06/09/2023]
Abstract
Radiation-induced brain injury is common and mainly occurs in patients receiving radiotherapy for malignant head and neck tumors. The brain is oversensitive to oxidant injury induced by radiation. Biotin is a member of the vitamin B complex family and its deficiency has been associated with neurogenesis impairment in animals and humans. The present study was undertaken to investigate the mitigating effect of biotin on the cerebral cortical and hippocampal damage induced by radiation exposure. Animals were exposed to radiation in the presence or absence of biotin and sacrificed on day 10. The results demonstrated that the administration of biotin 2 mg to irradiated rats had no significant effect on the radiation-induced damage of the cerebral cortex and the hippocampus, while the administration of biotin 6 mg has significantly attenuated oxidative stress in the hippocampus, manifested by a reduction of 4-hydroxynonenal (4HNE), total nitrate/nitrite (NOx), and xanthine oxidase (XO) levels associated with an elevation of glutathione (GSH) content as well as superoxide dismutase (SOD) and catalase (CAT) activities. In addition, biotin decreased the pro-inflammatory cytokines (interleukin-1 beta (IL-1β), interleukin-6 (IL-6), and tumor necrotic factor alpha (TNF-α)), caspase-3, poly(ADP-ribose) polymerase 1 (PARP1) level, and PARP1 gene expression. Moreover, biotin 6 mg treatment diminished serum S100 protein (S100B) and neuron-specific enolase (NSE) levels. In conclusion, biotin treatment at high dose post-irradiation has efficiently neutralized the effect of free radicals in the hippocampal region of rats. Thus, it could be applicable as a radio-mitigator for reducing or delayed radiation-induced brain injury in patients post-radiotherapy.
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Affiliation(s)
- Nadia Abdel-Magied
- Radiation Biology Research Department, National Centre for Radiation Research and Technology (NCRRT), Atomic Energy Authority (AEA), 3 street (3st) Ahmed Elzomer, P.O. Box 29, Nasr City, Cairo, Egypt.
| | - Shereen M Shedid
- Radiation Biology Research Department, National Centre for Radiation Research and Technology (NCRRT), Atomic Energy Authority (AEA), 3 street (3st) Ahmed Elzomer, P.O. Box 29, Nasr City, Cairo, Egypt
| | - Amal G Ahmed
- Radiation Biology Research Department, National Centre for Radiation Research and Technology (NCRRT), Atomic Energy Authority (AEA), 3 street (3st) Ahmed Elzomer, P.O. Box 29, Nasr City, Cairo, Egypt
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178
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Subramanian B, Agarwal T, Basak P, Maiti TK, Guha SK. RISUG ® based improved intrauterine contraceptive device (IIUCD) could impart protective effects against development of endometrial cancer. Med Hypotheses 2019; 124:67-71. [PMID: 30798920 DOI: 10.1016/j.mehy.2019.02.026] [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: 10/14/2018] [Revised: 12/11/2018] [Accepted: 02/03/2019] [Indexed: 11/28/2022]
Abstract
Intrauterine Contraceptive Devices with multifaceted application potential is a need of an hour. Although, copper-based IUDs exert an effective contraceptive as well as anticancer effects in a long-term basis, but also results in multiple complications. In this regard, RISUG® a polymer based contraceptive device has been introduced as a suitable alternative. However, its potential to impart protective effects against development of endometrial cancer still remains unexplored. This article presents the hypothesis on this unexplored domain and provides scientific facts to support the hypothesis. The mechanism of anticancerous activity is hypothesized that RISUG® involves its lipid membrane destabilizing activity. This activity is modulated by both, the cellular microenvironment and lipid bilayer composition. Acidic environment along with the significantly higher fluidic nature of lipid bilayer of the cancerous cells make them more prone to lipid solubilisation effect of RISUG®. We here present an in-depth insight into the factors that would favour faster solubilisation of cancer cell membrane, thereby exerting an anticancer effect.
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Affiliation(s)
- Bhuvaneshwaran Subramanian
- Indian Institute of Technology, School of Medical Science and Technology, Kharagpur 721302, India; Jadavpur University, School of Bio-Science and Engineering, Kolkata, West Bengal 700098, India
| | - Tarun Agarwal
- Indian Institute of Technology, Department of Biotechnology, Kharagpur 721302, India
| | - Piyali Basak
- Jadavpur University, School of Bio-Science and Engineering, Kolkata, West Bengal 700098, India.
| | - Tapas Kumar Maiti
- Indian Institute of Technology, Department of Biotechnology, Kharagpur 721302, India
| | - Sujoy K Guha
- Indian Institute of Technology, School of Medical Science and Technology, Kharagpur 721302, India.
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179
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Kotnik T, Rems L, Tarek M, Miklavčič D. Membrane Electroporation and Electropermeabilization: Mechanisms and Models. Annu Rev Biophys 2019; 48:63-91. [PMID: 30786231 DOI: 10.1146/annurev-biophys-052118-115451] [Citation(s) in RCA: 339] [Impact Index Per Article: 67.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Exposure of biological cells to high-voltage, short-duration electric pulses causes a transient increase in their plasma membrane permeability, allowing transmembrane transport of otherwise impermeant molecules. In recent years, large steps were made in the understanding of underlying events. Formation of aqueous pores in the lipid bilayer is now a widely recognized mechanism, but evidence is growing that changes to individual membrane lipids and proteins also contribute, substantiating the need for terminological distinction between electroporation and electropermeabilization. We first revisit experimental evidence for electrically induced membrane permeability, its correlation with transmembrane voltage, and continuum models of electropermeabilization that disregard the molecular-level structure and events. We then present insights from molecular-level modeling, particularly atomistic simulations that enhance understanding of pore formation, and evidence of chemical modifications of membrane lipids and functional modulation of membrane proteins affecting membrane permeability. Finally, we discuss the remaining challenges to our full understanding of electroporation and electropermeabilization.
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Affiliation(s)
- Tadej Kotnik
- Faculty of Electrical Engineering, University of Ljubljana, SI-1000 Ljubljana, Slovenia; ,
| | - Lea Rems
- Science for Life Laboratory, Department of Applied Physics, KTH Royal Institute of Technology, 17165 Solna, Sweden;
| | - Mounir Tarek
- Université de Lorraine, CNRS, LPCT, F-54000 Nancy, France;
| | - Damijan Miklavčič
- Faculty of Electrical Engineering, University of Ljubljana, SI-1000 Ljubljana, Slovenia; ,
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180
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Bour A, Kruglik SG, Chabanon M, Rangamani P, Puff N, Bonneau S. Lipid Unsaturation Properties Govern the Sensitivity of Membranes to Photoinduced Oxidative Stress. Biophys J 2019; 116:910-920. [PMID: 30777304 DOI: 10.1016/j.bpj.2019.01.033] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 01/28/2019] [Accepted: 01/29/2019] [Indexed: 12/11/2022] Open
Abstract
Unsaturated lipid oxidation is a fundamental process involved in different aspects of cellular bioenergetics; dysregulation of lipid oxidation is often associated with cell aging and death. To study how lipid oxidation affects membrane biophysics, we used a chlorin photosensitizer to oxidize vesicles of various lipid compositions and degrees of unsaturation in a controlled manner. We observed different shape transitions that can be interpreted as an increase in the area of the targeted membrane followed by a decrease. These area modifications induced by the chemical modification of the membrane upon oxidation were followed in situ by Raman tweezers microspectroscopy. We found that the membrane area increase corresponds to the lipids' peroxidation and is initiated by the delocalization of the targeted double bonds in the tails of the lipids. The subsequent decrease of membrane area can be explained by the formation of cleaved secondary products. As a result of these area changes, we observe vesicle permeabilization after a time lag that is characterized in relation with the level of unsaturation. The evolution of photosensitized vesicle radius was measured and yields an estimation of the mechanical changes of the membrane over oxidation time. The membrane is both weakened and permeabilized by the oxidation. Interestingly, the effect of unsaturation level on the dynamics of vesicles undergoing photooxidation is not trivial and thus carefully discussed. Our findings shed light on the fundamental dynamic mechanisms underlying the oxidation of lipid membranes and highlight the role of unsaturations on their physical and chemical properties.
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Affiliation(s)
- Aurélien Bour
- Sorbonne Université, Faculté des Sciences et Ingénierie, CNRS, Laboratoire Jean Perrin, Paris, France
| | - Sergei G Kruglik
- Sorbonne Université, Faculté des Sciences et Ingénierie, CNRS, Laboratoire Jean Perrin, Paris, France
| | - Morgan Chabanon
- Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, California
| | - Padmini Rangamani
- Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, California
| | - Nicolas Puff
- Sorbonne Université, Faculté des Sciences et Ingénierie, UFR 925, Paris, France; University Paris Diderot, Sorbonne Paris Cité, CNRS, Laboratoire Matière et Systèmes Complexes, UMR 7057, Paris, France
| | - Stephanie Bonneau
- Sorbonne Université, Faculté des Sciences et Ingénierie, CNRS, Laboratoire Jean Perrin, Paris, France.
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181
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Rems L, Viano M, Kasimova MA, Miklavčič D, Tarek M. The contribution of lipid peroxidation to membrane permeability in electropermeabilization: A molecular dynamics study. Bioelectrochemistry 2019; 125:46-57. [DOI: 10.1016/j.bioelechem.2018.07.018] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 07/17/2018] [Accepted: 07/24/2018] [Indexed: 01/04/2023]
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182
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Nalakarn P, Boonnoy P, Nisoh N, Karttunen M, Wong-Ekkabut J. Dependence of fullerene aggregation on lipid saturation due to a balance between entropy and enthalpy. Sci Rep 2019; 9:1037. [PMID: 30705323 PMCID: PMC6355782 DOI: 10.1038/s41598-018-37659-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 12/11/2018] [Indexed: 11/23/2022] Open
Abstract
It is well-known that fullerenes aggregate inside lipid membranes and that increasing the concentration may lead to (lethal) membrane rupture. It is not known, however, how aggregation and rupture depend on the lipid type, what physical mechanisms control this behavior and what experimental signatures detect such changes in membranes. In this paper, we attempt to answer these questions with molecular simulations, and we show that aggregation and membrane damage depend critically on the degree of saturation of the lipid acyl chains: unsaturated bonds, or "kinks", impose a subtle but crucial compartmentalization of the bilayer into core and surface regions leading to three distinct fullerene density maxima. In contrast, when the membrane has only fully saturated lipids, fullerenes prefer to be located close to the surface under the head groups until the concentration becomes too large and the fullerenes begin clustering. No clustering is observed in membranes with unsaturated lipids. The presence of "kinks" reverses the free energy balance; although the overall free energy profiles are similar, entropy is the dominant component in unsaturated bilayers whereas enthalpy controls the fully saturated ones. Fully saturated systems show two unique signatures: 1) membrane thickness behaves non-monotonously while the area per lipid increases monotonously. We propose this as a potential reason for the observations of low fullerene concentrations being effective against bacteria. 2) The fullerene-fullerene radial distribution function (RDF) shows splitting of the second peak indicating the emergence short-range order and the importance of the second-nearest neighbor interactions. Similar second peak splitting has been reported in metal glasses.
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Affiliation(s)
- Pornkamon Nalakarn
- Department of Physics, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand
- Computational Biomodelling Laboratory for Agricultural Science and Technology (CBLAST), Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand
- Thailand Center of Excellence in Physics (ThEP Center), Commission on Higher Education, Bangkok, 10400, Thailand
| | - Phansiri Boonnoy
- Department of Physics, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand
- Computational Biomodelling Laboratory for Agricultural Science and Technology (CBLAST), Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand
| | - Nililla Nisoh
- Department of Physics, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand
- Computational Biomodelling Laboratory for Agricultural Science and Technology (CBLAST), Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand
- Thailand Center of Excellence in Physics (ThEP Center), Commission on Higher Education, Bangkok, 10400, Thailand
| | - Mikko Karttunen
- Department of Chemistry and Department of Applied Mathematics, Western University, 1151 Richmond Street, London, Ontario, N6A 5B7, Canada.
| | - Jirasak Wong-Ekkabut
- Department of Physics, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand.
- Computational Biomodelling Laboratory for Agricultural Science and Technology (CBLAST), Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand.
- Thailand Center of Excellence in Physics (ThEP Center), Commission on Higher Education, Bangkok, 10400, Thailand.
- Specialized Center of Rubber and Polymer Materials for Agriculture and Industry (RPM), Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand.
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183
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Filice FP, Ding Z. Analysing single live cells by scanning electrochemical microscopy. Analyst 2019; 144:738-752. [DOI: 10.1039/c8an01490f] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Scanning electrochemical microscopy (SECM) offers single live cell activities along its topography toward cellular physiology and pathology.
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Affiliation(s)
- Fraser P. Filice
- Department of Chemistry
- The University of Western Ontario
- London
- Canada
| | - Zhifeng Ding
- Department of Chemistry
- The University of Western Ontario
- London
- Canada
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184
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Van der Paal J, Hong SH, Yusupov M, Gaur N, Oh JS, Short RD, Szili EJ, Bogaerts A. How membrane lipids influence plasma delivery of reactive oxygen species into cells and subsequent DNA damage: an experimental and computational study. Phys Chem Chem Phys 2019; 21:19327-19341. [DOI: 10.1039/c9cp03520f] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The combination of phospholipid vesicle experiments and molecular dynamics (MD) simulations illustrate how lipid oxidation, lipid packing and rafts formation may influence the response of healthy and diseased cell membranes to plasma-derived RONS.
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Affiliation(s)
- Jonas Van der Paal
- Research Group PLASMANT
- Department of Chemistry
- University of Antwerp
- Belgium
| | - Sung-Ha Hong
- Future Industries Institute
- University of South Australia
- Adelaide
- Australia
- Centre for Plasmas and Fluids
| | - Maksudbek Yusupov
- Research Group PLASMANT
- Department of Chemistry
- University of Antwerp
- Belgium
| | - Nishtha Gaur
- Future Industries Institute
- University of South Australia
- Adelaide
- Australia
| | - Jun-Seok Oh
- Department of Physical Electronics and Informatics
- Osaka City University
- Osaka
- Japan
- BioMedical Engineering Center (BMEC)
| | - Robert D. Short
- Material Science Institute
- Lancaster University
- Lancaster LA1 4YW
- UK
| | - Endre J. Szili
- Future Industries Institute
- University of South Australia
- Adelaide
- Australia
| | - Annemie Bogaerts
- Research Group PLASMANT
- Department of Chemistry
- University of Antwerp
- Belgium
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185
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Schumann-Gillett A, O'Mara ML. The effects of oxidised phospholipids and cholesterol on the biophysical properties of POPC bilayers. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2019; 1861:210-219. [DOI: 10.1016/j.bbamem.2018.07.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 07/04/2018] [Accepted: 07/23/2018] [Indexed: 10/28/2022]
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186
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Tsubone TM, Junqueira HC, Baptista MS, Itri R. Contrasting roles of oxidized lipids in modulating membrane microdomains. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2018; 1861:660-669. [PMID: 30605637 DOI: 10.1016/j.bbamem.2018.12.017] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 12/07/2018] [Accepted: 12/27/2018] [Indexed: 01/06/2023]
Abstract
Lipid rafts display a lateral heterogeneity forming membrane microdomains that hold a fundamental role on biological membranes and are indispensable to physiological functions of cells. Oxidative stress in cellular environments may cause lipid oxidation, changing membrane composition and organization, thus implying in effects in cell signaling and even loss of homeostasis. The individual contribution of oxidized lipid species to the formation or disruption of lipid rafts in membranes still remains unknown. Here, we investigate the role of different structures of oxidized phospholipids on rafts microdomains by carefully controlling the membrane composition. Our experimental approach based on fluorescence microscopy of giant unilamellar vesicles (GUV) enables the direct visualization of the impact of hydroperoxidized POPC lipid (referred to as POPCOOH) and shortened chain lipid PazePC (1-palmitoyl-2-azelaoyl-sn-glycero-3-phosphocholine) on phase separation. We found that the molecular structure of oxidized lipid is of paramount importance on lipid mixing and/or demixing. The hydrophobic mismatch promoted by POPCOOH coupled to its cylindrical molecular shape favor microdomains formation. In contrast, the conical shape of PazePC causes disarrangement of lipid 2D organized platforms. Our findings contribute to better unraveling how oxidized phospholipids can trigger formation or disruption of lipid rafts. As a consequence, phospholipid oxidation may indirectly affect association or dissociation of key biomolecules in the rafts thus altering cell signaling and homeostasis.
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Affiliation(s)
- Tayana Mazin Tsubone
- Department of Applied Physics, Institute of Physics, University of São Paulo, SP, Brazil
| | | | - Maurício S Baptista
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, SP, Brazil
| | - Rosangela Itri
- Department of Applied Physics, Institute of Physics, University of São Paulo, SP, Brazil.
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187
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Greene LE, Lincoln R, Cosa G. Spatio-temporal monitoring of lipid peroxyl radicals in live cell studies combining fluorogenic antioxidants and fluorescence microscopy methods. Free Radic Biol Med 2018; 128:124-136. [PMID: 29649566 DOI: 10.1016/j.freeradbiomed.2018.04.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 04/05/2018] [Accepted: 04/06/2018] [Indexed: 12/28/2022]
Abstract
Lipid peroxidation of polyunsaturated fatty acids in cells may occur via their catalytic autoxidation through peroxyl radicals under oxidative stress conditions. Lipid peroxidation is related to a number of pathologies, and may be invoked in new forms of regulated cell death, yet it may also have beneficial roles in cell signaling cascades. Antioxidants are a natural line of defense against lipid peroxidation, and may accordingly impact the biological outcome associated with the redox chemistry of lipid peroxidation. Critical to unraveling the physiological and pathological role of lipid peroxidation is the development of novel probes with the partition, chemical sensitivity and more importantly, molecular specificity, enabling the spatial and temporal imaging of peroxyl radicals in the lipid membranes of live cells, reporting on the redox status of the cell membrane. This review describes our recent progress to visualize lipid peroxidation in model membrane systems and in live cell studies. Our work portrays the mechanistic insight leading to the development of a highly sensitive probe to monitor lipid peroxyl radicals (LOO•). It also describes technical aspects including reagents and fluorescence microscopy methodologies to consider in order to achieve the much sought after monitoring of rates of lipid peroxyl radical production in live cell studies, be it under oxidative stress but also under cell homeostasis. This review seeks to bring attention to the study of lipid redox reactions and to lay the groundwork for the adoption of fluorogenic antioxidant probeshancement and maximum intensity recorded in turn provide a benchmark to estimate, when compared to the control BODIPY dye lacking the intramolecular PeT based switch, the overall exte and related fluorescence microscopy methods toward gaining rich spatiotemporal information on lipid peroxidation in live cells.
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Affiliation(s)
- Lana E Greene
- Department of Chemistry and Quebec Center for Advanced Materials (QCAM/CQMF), McGill University, 801 Sherbrooke Street West, Montreal, QC, Canada H3A 0B8
| | - Richard Lincoln
- Department of Chemistry and Quebec Center for Advanced Materials (QCAM/CQMF), McGill University, 801 Sherbrooke Street West, Montreal, QC, Canada H3A 0B8
| | - Gonzalo Cosa
- Department of Chemistry and Quebec Center for Advanced Materials (QCAM/CQMF), McGill University, 801 Sherbrooke Street West, Montreal, QC, Canada H3A 0B8.
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188
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Permeability of DOPC bilayers under photoinduced oxidation: Sensitivity to photosensitizer. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2018; 1860:2366-2373. [DOI: 10.1016/j.bbamem.2018.06.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Revised: 06/01/2018] [Accepted: 06/01/2018] [Indexed: 01/16/2023]
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189
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Cyboran-Mikołajczyk S, Jurkiewicz P, Hof M, Kleszczyńska H. The Impact of O-Glycosylation on Cyanidin Interaction with POPC Membranes: Structure-Activity Relationship. Molecules 2018; 23:E2771. [PMID: 30366469 PMCID: PMC6278410 DOI: 10.3390/molecules23112771] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 10/22/2018] [Accepted: 10/23/2018] [Indexed: 12/23/2022] Open
Abstract
Cyanidin and its O-glycosides have many important physiological functions in plants and beneficial effects on human health. Their biological activity is not entirely clear and depends on the structure of the molecule, in particular, on the number and type of sugar substituents. Therefore, in this study the detailed structure-activity relationship (SARs) of the anthocyanins/anthocyanidins in relation to their interactions with lipid bilayer was determined. On the basis of their antioxidant activity and the changes induced by them in size and Zeta potential of lipid vesicles, and mobility and order of lipid acyl chains, the impact of the number and type of sugar substituents on the biological activity of the compounds was evaluated. The obtained results have shown, that 3-O-glycosylation changes the interaction of cyanidin with lipid bilayer entirely. The 3-O-glycosides containing a monosaccharide induces greater changes in physical properties of the lipid membrane than those containing disaccharides. The presence of additional sugar significantly reduces glycoside interaction with model lipid membrane. Furthermore, O-glycosylation alters the ability of cyanidin to scavenge free radicals. This alteration depends on the type of free radicals and the sensitivity of the method used for their determination.
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Affiliation(s)
- Sylwia Cyboran-Mikołajczyk
- Department of Physics and Biophysics, Wroclaw University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland.
| | - Piotr Jurkiewicz
- J. Heyrovsky Institute of Physical Chemistry, Academy of Science of the Czech Republic, Dolejškova 2155/3, Prague 8, 182 23, Czech Republic.
| | - Martin Hof
- J. Heyrovsky Institute of Physical Chemistry, Academy of Science of the Czech Republic, Dolejškova 2155/3, Prague 8, 182 23, Czech Republic.
| | - Halina Kleszczyńska
- Department of Physics and Biophysics, Wroclaw University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland.
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190
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Privat-Maldonado A, Gorbanev Y, Dewilde S, Smits E, Bogaerts A. Reduction of Human Glioblastoma Spheroids Using Cold Atmospheric Plasma: The Combined Effect of Short- and Long-Lived Reactive Species. Cancers (Basel) 2018; 10:E394. [PMID: 30360539 PMCID: PMC6266784 DOI: 10.3390/cancers10110394] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 10/09/2018] [Accepted: 10/19/2018] [Indexed: 01/09/2023] Open
Abstract
Cold atmospheric plasma (CAP) is a promising technology against multiple types of cancer. However, the current findings on the effect of CAP on two-dimensional glioblastoma cultures do not consider the role of the tumour microenvironment. The aim of this study was to determine the ability of CAP to reduce and control glioblastoma spheroid tumours in vitro. Three-dimensional glioblastoma spheroid tumours (U87-Red, U251-Red) were consecutively treated directly and indirectly with a CAP using dry He, He + 5% H₂O or He + 20% H₂O. The cytotoxicity and spheroid shrinkage were monitored using live imaging. The reactive oxygen and nitrogen species produced in phosphate buffered saline (PBS) were measured by electron paramagnetic resonance (EPR) and colourimetry. Cell migration was also assessed. Our results demonstrate that consecutive CAP treatments (He + 20% H₂O) substantially shrank U87-Red spheroids and to a lesser degree, U251-Red spheroids. The cytotoxic effect was due to the short- and long-lived species delivered by CAP: they inhibited spheroid growth, reduced cell migration and decreased proliferation in CAP-treated spheroids. Direct treatments were more effective than indirect treatments, suggesting the importance of CAP-generated, short-lived species for the growth inhibition and cell cytotoxicity of solid glioblastoma tumours. We concluded that CAP treatment can effectively reduce glioblastoma tumour size and restrict cell migration, thus demonstrating the potential of CAP therapies for glioblastoma.
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Affiliation(s)
- Angela Privat-Maldonado
- PLASMANT, Chemistry Department, University of Antwerp, 2610 Antwerp, Belgium.
- Solid Tumor Immunology Group, Center for Oncological Research, University of Antwerp, 2610 Antwerp, Belgium.
| | - Yury Gorbanev
- PLASMANT, Chemistry Department, University of Antwerp, 2610 Antwerp, Belgium.
| | - Sylvia Dewilde
- Protein Chemistry, Proteomics and Epigenetic Signaling, Department of Biomedical Sciences, University of Antwerp, 2610 Antwerp, Belgium.
| | - Evelien Smits
- Solid Tumor Immunology Group, Center for Oncological Research, University of Antwerp, 2610 Antwerp, Belgium.
| | - Annemie Bogaerts
- PLASMANT, Chemistry Department, University of Antwerp, 2610 Antwerp, Belgium.
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191
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Webster A, Chintala SK, Kim J, Ngan M, Itakura T, Panjwani N, Argüeso P, Barr JT, Jeong S, Fini ME. Dynasore protects the ocular surface against damaging oxidative stress. PLoS One 2018; 13:e0204288. [PMID: 30303976 PMCID: PMC6179211 DOI: 10.1371/journal.pone.0204288] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 09/04/2018] [Indexed: 02/04/2023] Open
Abstract
Water soluble "vital" dyes are commonly used clinically to evaluate health of the ocular surface; however, staining mechanisms remain poorly understood. Recent evidence suggests that sublethal damage stimulates vital dye uptake by individual living cells. Since cell damage can also stimulate reparative plasma membrane remodeling, we hypothesized that dye uptake occurs via endocytic vesicles. In support of this idea, we show here that application of oxidative stress to relatively undifferentiated monolayer cultures of human corneal epithelial cells stimulates both dye uptake and endocytosis, and that dye uptake is blocked by co-treatment with three different endocytosis inhibitors. Stress application to stratified and differentiated corneal epithelial cell cultures, which are a better model of the ocular surface, also stimulated dye uptake; however, endocytosis was not stimulated, and two of the endocytosis inhibitors did not block dye uptake. The exception was Dynasore and its more potent analogue Dyngo-4a, both small molecules developed to target dynamin family GTPases, but also having off-target effects on the plasma membrane. Significantly, while Dynasore blocked stress-stimulated dye uptake at the ocular surface of ex vivo mouse eyes when treatment was performed at the same time as eyes were stressed, it had no effect when used after stress was applied and the ocular surface was already damaged. Thus, Dynasore could not be working by inhibiting endocytosis. Employing cytotoxicity and western blotting assays, we went on to demonstrate an alternative mechanism. We show that Dynasore is remarkably protective of cells and their surface glycocalyx, preventing damage due to stress, and thus precluding dye entry. These unexpected and novel findings provide greater insight into the mechanisms of vital dye uptake and point the direction for future study. Significantly, they also suggest that Dynasore and its analogues might be used therapeutically to protect the ocular surface and to treat ocular surface disease.
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Affiliation(s)
- Andrew Webster
- USC Institute for Genetic Medicine, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA, United States of America
| | - Shravan K. Chintala
- USC Institute for Genetic Medicine, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA, United States of America
| | - Jasmine Kim
- Program in Biological Sciences, USC Dana and David Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, CA, United States of America
| | - Michelle Ngan
- Program in Preventive Medicine, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA, United States of America
| | - Tatsuo Itakura
- USC Institute for Genetic Medicine, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA, United States of America
| | - Noorjahan Panjwani
- New England Eye Center/Department of Ophthalmology and Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA, United States of America
| | - Pablo Argüeso
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, United States of America
| | - Joseph T. Barr
- The Ohio State University College of Optometry, Columbus, OH, United States of America
| | - Shinwu Jeong
- USC Institute for Genetic Medicine and USC Roski Eye Institute/Department of Ophthalmology, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA, United States of America
| | - M. Elizabeth Fini
- USC Institute for Genetic Medicine, Keck School of Medicine of USC, University of Southern California, Los Angeles, CA, United States of America
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192
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Del Favero G, Zaharescu R, Marko D. Functional impairment triggered by altertoxin II (ATXII) in intestinal cells in vitro: cross-talk between cytotoxicity and mechanotransduction. Arch Toxicol 2018; 92:3535-3547. [PMID: 30276433 PMCID: PMC6290659 DOI: 10.1007/s00204-018-2317-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Accepted: 09/19/2018] [Indexed: 12/22/2022]
Abstract
Intestinal cells are able to continuously integrate response to multiple stimuli/stressors; these include the concomitant activation of “chemically driven” pathways, of paramount importance in the response to toxicants, as well as physical stimulation derived from motility. Altertoxin II (ATXII, 0.1, 1 and 10 µM), a mycotoxin produced by the food contaminant fungus Alternaria alternata was studied in HT-29 intestinal adenocarcinoma cells and in non-transformed intestinal epithelial cells, HCEC. One-hour incubation with ATXII was sufficient to trigger irreversible cytotoxicity in both cell types, as well as to modify cellular responses to concomitant pro-oxidant challenge (H2O2, 100–500 µM, DCF-DA assay) suggesting that even relatively short-time exposure of the intestinal cells could be sufficient to alter their functionality. Combination of ATXII (1 µM) with physical stimulation typical of the intestinal compartment (shear stress) revealed differential response of tumor-derived epithelial cells HT-29 in comparison to HCEC, in particular in the localization of the transcription factor Nrf2 (NF-E2-related factor 2). Moreover, ATXII reduced the migratory potential of HCEC as well as their membrane fluidity, but had no respective impact on HT-29 cells. Taken together, ATXII appeared to alter predominantly membrane functionality in HCEC thus hampering crucial functions for cellular motility/turnover, as well as barrier function of healthy intestinal cells and had very limited activity on the tumor counterparts.
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Affiliation(s)
- Giorgia Del Favero
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Währingerstr. 38-40, 1090, Vienna, Austria.
| | - Ronita Zaharescu
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Währingerstr. 38-40, 1090, Vienna, Austria
| | - Doris Marko
- Department of Food Chemistry and Toxicology, Faculty of Chemistry, University of Vienna, Währingerstr. 38-40, 1090, Vienna, Austria
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193
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Peña FJ, Ortiz Rodriguez JM, Gil MC, Ortega Ferrusola C. Flow cytometry analysis of spermatozoa: Is it time for flow spermetry? Reprod Domest Anim 2018; 53 Suppl 2:37-45. [DOI: 10.1111/rda.13261] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 04/06/2018] [Accepted: 05/01/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Fernando J. Peña
- Laboratory of Equine Reproduction and Spermatology; University of Extremadura; Cáceres Spain
| | - Jose M. Ortiz Rodriguez
- Laboratory of Equine Reproduction and Spermatology; University of Extremadura; Cáceres Spain
| | - María C. Gil
- Laboratory of Equine Reproduction and Spermatology; University of Extremadura; Cáceres Spain
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194
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Vosahlikova M, Ujcikova H, Hlouskova M, Musil S, Roubalova L, Alda M, Svoboda P. Induction of oxidative stress by long-term treatment of live HEK293 cells with therapeutic concentration of lithium is associated with down-regulation of δ-opioid receptor amount and function. Biochem Pharmacol 2018; 154:452-463. [DOI: 10.1016/j.bcp.2018.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 06/04/2018] [Indexed: 12/27/2022]
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195
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How cardiolipin peroxidation alters the properties of the inner mitochondrial membrane? Chem Phys Lipids 2018; 214:15-23. [DOI: 10.1016/j.chemphyslip.2018.04.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 04/29/2018] [Indexed: 01/16/2023]
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196
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Bacellar IOL, Oliveira MC, Dantas LS, Costa EB, Junqueira HC, Martins WK, Durantini AM, Cosa G, Di Mascio P, Wainwright M, Miotto R, Cordeiro RM, Miyamoto S, Baptista MS. Photosensitized Membrane Permeabilization Requires Contact-Dependent Reactions between Photosensitizer and Lipids. J Am Chem Soc 2018; 140:9606-9615. [DOI: 10.1021/jacs.8b05014] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Isabel O. L. Bacellar
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Avenida Prof. Lineu Prestes 748, São Paulo, SP, Brazil, 05508-000
- Department of Chemistry and Center for Self-Assembled Chemical Structures CSACS/CRMAA, McGill University, 801 Sherbrook Street West, Montreal, QC, Canada, H3A 0B8
| | - Maria Cecilia Oliveira
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Avenida dos Estados 5001, Santo André, SP, Brazil, 09210-580
| | - Lucas S. Dantas
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Avenida Prof. Lineu Prestes 748, São Paulo, SP, Brazil, 05508-000
| | - Elierge B. Costa
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Avenida dos Estados 5001, Santo André, SP, Brazil, 09210-580
| | - Helena C. Junqueira
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Avenida Prof. Lineu Prestes 748, São Paulo, SP, Brazil, 05508-000
| | - Waleska K. Martins
- Universidade Anhanguera de São Paulo, Avenida Raimundo Pereira de Magalhães, 3305, São Paulo, SP, Brazil, 05145-200
| | - Andrés M. Durantini
- Department of Chemistry and Center for Self-Assembled Chemical Structures CSACS/CRMAA, McGill University, 801 Sherbrook Street West, Montreal, QC, Canada, H3A 0B8
| | - Gonzalo Cosa
- Department of Chemistry and Center for Self-Assembled Chemical Structures CSACS/CRMAA, McGill University, 801 Sherbrook Street West, Montreal, QC, Canada, H3A 0B8
| | - Paolo Di Mascio
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Avenida Prof. Lineu Prestes 748, São Paulo, SP, Brazil, 05508-000
| | - Mark Wainwright
- School of Pharmacy & Biomolecular Sciences, Liverpool John Moores University, Liverpool, United Kingdom, L3 3AF
| | - Ronei Miotto
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Avenida dos Estados 5001, Santo André, SP, Brazil, 09210-580
| | - Rodrigo M. Cordeiro
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Avenida dos Estados 5001, Santo André, SP, Brazil, 09210-580
| | - Sayuri Miyamoto
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Avenida Prof. Lineu Prestes 748, São Paulo, SP, Brazil, 05508-000
| | - Mauricio S. Baptista
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Avenida Prof. Lineu Prestes 748, São Paulo, SP, Brazil, 05508-000
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197
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Yadav DK, Kumar S, Choi EH, Sharma P, Misra S, Kim MH. Insight Into the Molecular Dynamic Simulation Studies of Reactive Oxygen Species in Native Skin Membrane. Front Pharmacol 2018; 9:644. [PMID: 29997501 PMCID: PMC6030362 DOI: 10.3389/fphar.2018.00644] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 05/30/2018] [Indexed: 12/13/2022] Open
Abstract
In recent years, the role of reactive oxygen species (ROS) in regulating cancer cell apoptosis, inflammation, cell ischemia, and cell signaling pathways has been well established. The most common sources of intracellular ROS are the mitochondrial electron transport system, NADH oxidase, and cytochrome P450. In this study, we investigated the dynamics and permeability of ROS using molecular dynamics (MD) simulations on native skin-lipid bilayer membranes. Native skin-lipid bilayers are composed of ceramide, cholesterol, and free fatty acid in an almost equal molar ratio (1:1:1). Dynamic distribution studies on ROS, i.e., hydrogen peroxide (H2O2) and O2 (1O2 by analogy), revealed that these species interact with cholesterol as a primary target in lipid peroxidation of the skin-lipid bilayer. Moreover, the permeability of ROS, i.e., H2O2, hydroxyl radicals (HO), hydroperoxy radical (HOO), and O2, along the skin-lipid bilayer was measured using free energy profiles (FEPs). The FEPs showed that in spite of high-energy barriers, ROS traveled through the membrane easily. Breaching the free energy barriers, these ROS permeated into the membrane, inflicting oxidative stress, and causing apoptosis. Collectively, the insight acquired from simulations may result in a better understanding of oxidative stress at the atomic level.
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Affiliation(s)
- Dharmendra K Yadav
- College of Pharmacy, Gachon University of Medicine and Science, Incheon, South Korea.,Gachon Institute of Pharmaceutical Science & Department of Pharmacy, College of Pharmacy, Gachon University, Incheon, South Korea
| | - Surendra Kumar
- College of Pharmacy, Gachon University of Medicine and Science, Incheon, South Korea.,Gachon Institute of Pharmaceutical Science & Department of Pharmacy, College of Pharmacy, Gachon University, Incheon, South Korea
| | - Eun-Ha Choi
- Plasma Bioscience Research Center/PDP Research Center, Kwangwoon University, Seoul, South Korea
| | - Praveen Sharma
- Department of Biochemistry, All India Institute of Medical Sciences, Jodhpur, India
| | - Sanjeev Misra
- Plasma Bioscience Research Center/PDP Research Center, Kwangwoon University, Seoul, South Korea
| | - Mi-Hyun Kim
- College of Pharmacy, Gachon University of Medicine and Science, Incheon, South Korea.,Gachon Institute of Pharmaceutical Science & Department of Pharmacy, College of Pharmacy, Gachon University, Incheon, South Korea
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198
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Possible Mechanism of Glucose Uptake Enhanced by Cold Atmospheric Plasma: Atomic Scale Simulations. PLASMA 2018. [DOI: 10.3390/plasma1010011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Cold atmospheric plasma (CAP) has shown its potential in biomedical applications, such as wound healing, cancer treatment and bacterial disinfection. Recent experiments have provided evidence that CAP can also enhance the intracellular uptake of glucose molecules which is important in diabetes therapy. In this respect, it is essential to understand the underlying mechanisms of intracellular glucose uptake induced by CAP, which is still unclear. Hence, in this study we try to elucidate the possible mechanism of glucose uptake by cells by performing computer simulations. Specifically, we study the transport of glucose molecules through native and oxidized membranes. Our simulation results show that the free energy barrier for the permeation of glucose molecules across the membrane decreases upon increasing the degree of oxidized lipids in the membrane. This indicates that the glucose permeation rate into cells increases when the CAP oxidation level in the cell membrane is increased.
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199
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Shu F, Chen J, Ma X, Fan Y, Yu L, Zheng W, Amrein MW, Xia T, Shi Y. Cholesterol Crystal-Mediated Inflammation Is Driven by Plasma Membrane Destabilization. Front Immunol 2018; 9:1163. [PMID: 29896195 PMCID: PMC5986904 DOI: 10.3389/fimmu.2018.01163] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 05/09/2018] [Indexed: 01/21/2023] Open
Abstract
Atherosclerosis is driven by an inflammatory milieu in the walls of artery vessels. Initiated early in life, it progresses to plaque formation and form cell accumulation. A culprit in this cascade is the deposition of cholesterol crystals (CC). The involvement of smaller crystals in the early stage of atherosclerotic changes may be critical to the long-term pathological development. How these small crystals initiate the pro-inflammatory events is under study. We report here an unexpected mechanism that microscopic CC interact with cellular membrane in a phagocytosis-independent manner. The binding of these crystals extracts cholesterol from the cell surface. This process causes a sudden catastrophic rupture of plasma membrane and necrosis of the bound cells independent of any known cell death-inducing pathways, releasing inflammatory agents associated with the necrotic cell death. Our results, therefore, reveal a biophysical aspect of CC in potentially mediating the inflammatory progress in atherosclerosis.
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Affiliation(s)
- Fei Shu
- Peking University-Tsinghua University-National Institute of Biological Sciences Joint Graduate Program, School of Life Sciences, Peking University, Beijing, China.,Department of Basic Medical Sciences, Center for Life Sciences, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, Tsinghua University, Beijing, China
| | - Jiahuan Chen
- Department of Basic Medical Sciences, Center for Life Sciences, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, Tsinghua University, Beijing, China
| | - Xiaojie Ma
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Yunzhou Fan
- Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Li Yu
- Department of Basic Medical Sciences, Center for Life Sciences, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, Tsinghua University, Beijing, China
| | - Wencheng Zheng
- Department of Basic Medical Sciences, Center for Life Sciences, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, Tsinghua University, Beijing, China
| | - Matthias W Amrein
- Department of Cell Biology, Snyder Institute, University of Calgary, Calgary, AB, Canada.,Department of Anatomy, Snyder Institute, University of Calgary, Calgary, AB, Canada
| | - Tie Xia
- Department of Basic Medical Sciences, Center for Life Sciences, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, Tsinghua University, Beijing, China
| | - Yan Shi
- Department of Basic Medical Sciences, Center for Life Sciences, Institute for Immunology, Beijing Key Lab for Immunological Research on Chronic Diseases, Tsinghua University, Beijing, China.,Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute, University of Calgary, Calgary, AB, Canada
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200
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Lackmann JW, Wende K, Verlackt C, Golda J, Volzke J, Kogelheide F, Held J, Bekeschus S, Bogaerts A, Schulz-von der Gathen V, Stapelmann K. Chemical fingerprints of cold physical plasmas - an experimental and computational study using cysteine as tracer compound. Sci Rep 2018; 8:7736. [PMID: 29769633 PMCID: PMC5955931 DOI: 10.1038/s41598-018-25937-0] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 04/19/2018] [Indexed: 12/13/2022] Open
Abstract
Reactive oxygen and nitrogen species released by cold physical plasma are being proposed as effectors in various clinical conditions connected to inflammatory processes. As these plasmas can be tailored in a wide range, models to compare and control their biochemical footprint are desired to infer on the molecular mechanisms underlying the observed effects and to enable the discrimination between different plasma sources. Here, an improved model to trace short-lived reactive species is presented. Using FTIR, high-resolution mass spectrometry, and molecular dynamics computational simulation, covalent modifications of cysteine treated with different plasmas were deciphered and the respective product pattern used to generate a fingerprint of each plasma source. Such, our experimental model allows a fast and reliable grading of the chemical potential of plasmas used for medical purposes. Major reaction products were identified to be cysteine sulfonic acid, cystine, and cysteine fragments. Less-abundant products, such as oxidized cystine derivatives or S-nitrosylated cysteines, were unique to different plasma sources or operating conditions. The data collected point at hydroxyl radicals, atomic O, and singlet oxygen as major contributing species that enable an impact on cellular thiol groups when applying cold plasma in vitro or in vivo.
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Affiliation(s)
- J-W Lackmann
- Biomedical Applications of Plasma Technology, Ruhr University Bochum, Universitätsstr 150, 44780, Bochum, Germany. .,ZIK plasmatis, Leibniz-Institute for Plasma Science and Technology, Felix-Hausdorff-Str. 2, 17489, Greifswald, Germany.
| | - K Wende
- ZIK plasmatis, Leibniz-Institute for Plasma Science and Technology, Felix-Hausdorff-Str. 2, 17489, Greifswald, Germany.
| | - C Verlackt
- PLASMANT, University of Antwerp, Universiteitsplein 1, 2610, Antwerp-Wilrijk, Belgium
| | - J Golda
- Experimental Physics II, Ruhr University Bochum, Universitätsstr 150, 44780, Bochum, Germany
| | - J Volzke
- ZIK plasmatis, Leibniz-Institute for Plasma Science and Technology, Felix-Hausdorff-Str. 2, 17489, Greifswald, Germany
| | - F Kogelheide
- Biomedical Applications of Plasma Technology, Ruhr University Bochum, Universitätsstr 150, 44780, Bochum, Germany
| | - J Held
- Experimental Physics II, Ruhr University Bochum, Universitätsstr 150, 44780, Bochum, Germany
| | - S Bekeschus
- ZIK plasmatis, Leibniz-Institute for Plasma Science and Technology, Felix-Hausdorff-Str. 2, 17489, Greifswald, Germany
| | - A Bogaerts
- PLASMANT, University of Antwerp, Universiteitsplein 1, 2610, Antwerp-Wilrijk, Belgium
| | - V Schulz-von der Gathen
- Experimental Physics II, Ruhr University Bochum, Universitätsstr 150, 44780, Bochum, Germany
| | - K Stapelmann
- Biomedical Applications of Plasma Technology, Ruhr University Bochum, Universitätsstr 150, 44780, Bochum, Germany.,Department of Nuclear Engineering, Plasma for Life Sciences, North Carolina State University, Raleigh, NC, 27695, USA
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