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Balantič K, Weiss VU, Pittenauer E, Miklavčič D, Kramar P. The role of lipid oxidation on electrical properties of planar lipid bilayers and its importance for understanding electroporation. Bioelectrochemistry 2023; 153:108498. [PMID: 37399652 DOI: 10.1016/j.bioelechem.2023.108498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 07/05/2023]
Abstract
Electroporation is a useful tool for the manipulation with the cell membrane permeability. Underlying physicochemical processes taking place at the molecular level during electroporation are relatively well studied. However, various processes remain unknown, one of them is lipid oxidation, a chain reaction that causes degradation of lipids, and might explain the long-lasting membrane permeability after the electric field has ceased. The aim of our study was to observe the differences in the electrical properties of planar lipid bilayers, as in vitro cell membrane models, due to lipid oxidation. Phospholipids were chemically oxidized and oxidation products were analysed using mass spectrometry. Electrical properties, resistance R (Ω) and capacitance C (F) were measured using an LCR meter. Using a previously developed measuring device, a linear increasing signal was applied to a stable bilayer in order to measure its breakdown voltage Ubr (V) and lifetime tbr (µs). We observed an increase in conductance and capacitance of the oxidized planar lipid bilayers when compared to their non-oxidized counterparts. With increasing lipid oxidation, the core of the bilayer becomes more polar, and consequently more permeable. Our findings can explain the long-lasting permeability of the cell membrane after electroporation.
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Affiliation(s)
- Katja Balantič
- University of Ljubljana, Faculty of Electrical Engineering, Slovenia
| | - Victor U Weiss
- Institute of Chemical Technologies and Analytics, TU Wien, Vienna, Austria
| | - Ernst Pittenauer
- Institute of Chemical Technologies and Analytics, TU Wien, Vienna, Austria
| | - Damijan Miklavčič
- University of Ljubljana, Faculty of Electrical Engineering, Slovenia
| | - Peter Kramar
- University of Ljubljana, Faculty of Electrical Engineering, Slovenia.
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Abduvokhidov D, Yusupov M, Shahzad A, Attri P, Shiratani M, Oliveira MC, Razzokov J. Unraveling the Transport Properties of RONS across Nitro-Oxidized Membranes. Biomolecules 2023; 13:1043. [PMID: 37509079 PMCID: PMC10377474 DOI: 10.3390/biom13071043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/13/2023] [Accepted: 06/25/2023] [Indexed: 07/30/2023] Open
Abstract
The potential of cold atmospheric plasma (CAP) in biomedical applications has received significant interest, due to its ability to generate reactive oxygen and nitrogen species (RONS). Upon exposure to living cells, CAP triggers alterations in various cellular components, such as the cell membrane. However, the permeation of RONS across nitrated and oxidized membranes remains understudied. To address this gap, we conducted molecular dynamics simulations, to investigate the permeation capabilities of RONS across modified cell membranes. This computational study investigated the translocation processes of less hydrophilic and hydrophilic RONS across the phospholipid bilayer (PLB), with various degrees of oxidation and nitration, and elucidated the impact of RONS on PLB permeability. The simulation results showed that less hydrophilic species, i.e., NO, NO2, N2O4, and O3, have a higher penetration ability through nitro-oxidized PLB compared to hydrophilic RONS, i.e., HNO3, s-cis-HONO, s-trans-HONO, H2O2, HO2, and OH. In particular, nitro-oxidation of PLB, induced by, e.g., cold atmospheric plasma, has minimal impact on the penetration of free energy barriers of less hydrophilic species, while it lowers these barriers for hydrophilic RONS, thereby enhancing their translocation across nitro-oxidized PLB. This research contributes to a better understanding of the translocation abilities of RONS in the field of plasma biomedical applications and highlights the need for further analysis of their role in intracellular signaling pathways.
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Affiliation(s)
- Davronjon Abduvokhidov
- Institute of Fundamental and Applied Research, National Research University TIIAME, Kori Niyoziy 39, Tashkent 100000, Uzbekistan
- Department of Information Technologies, Tashkent International University of Education, Imom Bukhoriy 6, Tashkent 100207, Uzbekistan
- Institute of Material Sciences, Academy of Sciences, Chingiz Aytmatov 2b, Tashkent 100084, Uzbekistan
| | - Maksudbek Yusupov
- R&D Center, New Uzbekistan University, Mustaqillik Avenue 54, Tashkent 100007, Uzbekistan
- Department of Power Supply and Renewable Energy Sources, National Research University TIIAME, Kori Niyoziy 39, Tashkent 100000, Uzbekistan
- Laboratory of Thermal Physics of Multiphase Systems, Arifov Institute of Ion-Plasma and Laser Technologies, Academy of Sciences of Uzbekistan, Tashkent 100125, Uzbekistan
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium
| | - Aamir Shahzad
- Modeling and Simulation Laboratory, Department of Physics, Government College University Faisalabad (GCUF), Allama Iqbal Road, Faisalabad 38040, Pakistan
| | - Pankaj Attri
- Center of Plasma Nano-Interface Engineering, Kyushu University, Fukuoka 819-0395, Japan
- Faculty of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Masaharu Shiratani
- Center of Plasma Nano-Interface Engineering, Kyushu University, Fukuoka 819-0395, Japan
- Faculty of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Maria C Oliveira
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium
| | - Jamoliddin Razzokov
- Institute of Fundamental and Applied Research, National Research University TIIAME, Kori Niyoziy 39, Tashkent 100000, Uzbekistan
- School of Engineering, Akfa University, Milliy Bog Street 264, Tashkent 111221, Uzbekistan
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Paez-Perez M, Vyšniauskas A, López-Duarte I, Lafarge EJ, López-Ríos De Castro R, Marques CM, Schroder AP, Muller P, Lorenz CD, Brooks NJ, Kuimova MK. Directly imaging emergence of phase separation in peroxidized lipid membranes. Commun Chem 2023; 6:15. [PMID: 36697756 DOI: 10.1038/s42004-022-00809-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 12/29/2022] [Indexed: 01/19/2023] Open
Abstract
Lipid peroxidation is a process which is key in cell signaling and disease, it is exploited in cancer therapy in the form of photodynamic therapy. The appearance of hydrophilic moieties within the bilayer's hydrocarbon core will dramatically alter the structure and mechanical behavior of membranes. Here, we combine viscosity sensitive fluorophores, advanced microscopy, and X-ray diffraction and molecular simulations to directly and quantitatively measure the bilayer's structural and viscoelastic properties, and correlate these with atomistic molecular modelling. Our results indicate an increase in microviscosity and a decrease in the bending rigidity upon peroxidation of the membranes, contrary to the trend observed with non-oxidized lipids. Fluorescence lifetime imaging microscopy and MD simulations give evidence for the presence of membrane regions of different local order in the oxidized membranes. We hypothesize that oxidation promotes stronger lipid-lipid interactions, which lead to an increase in the lateral heterogeneity within the bilayer and the creation of lipid clusters of higher order.
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Espinosa YR, Barrera Valderrama DI, Carlevaro CM, Llanos EJ. Molecular basis of the anchoring and stabilization of human islet amyloid polypeptide in lipid hydroperoxidized bilayers. Biochim Biophys Acta Gen Subj 2022; 1866:130200. [PMID: 35820640 DOI: 10.1016/j.bbagen.2022.130200] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 06/25/2022] [Accepted: 07/02/2022] [Indexed: 01/18/2023]
Abstract
The molecular structure of membrane lipids is formed by mono- or polyunsaturations on their aliphatic tails that make them susceptible to oxidation, facilitating the incorporation of hydroperoxide (R-OOH) functional groups. Such groups promote changes in both composition and complexity of the membrane significantly modifying its physicochemical properties. Human Langerhans islets amyloid polypeptide (hIAPP) is the main component of amyloid deposits found in the pancreas of patients with type-2 diabetes (T2D). hIAPP in the presence of membranes with oxidized lipid species accelerates the formation of amyloid fibrils or the formation of intermediate oligomeric structures. However, the molecular bases at the initial stage of the anchoring and stabilization of the hIAPP in a hydroperoxidized membrane are not yet well understood. To shed some light on this matter, in this contribution, three bilayer models were modeled: neutral (POPC), anionic (POPS), and oxidized (POPCOOH), and full atom Molecular Dynamics (MD) simulations were performed. Our results show that the POPCOOH bilayer increases the helicity in hIAPP when compared to POPC or POPS bilayer. The modification in the secondary structure covers the residues of the so-called amyloidogenic core of the hIAPP. Overall, the hydroperoxidation of the neutral lipids modifies both the anchoring and the stabilization of the peptide hIAPP by reducing the random conformations of the peptide and increasing of hydrogen bond population with the hydroperoxidized lipids.
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Negrín-Montecelo Y, Movsesyan A, Gao J, Burger S, Wang ZM, Nlate S, Pouget E, Oda R, Comesaña-Hermo M, Govorov AO, Correa-Duarte MA. Chiral Generation of Hot Carriers for Polarization-Sensitive Plasmonic Photocatalysis. J Am Chem Soc 2022; 144:1663-1671. [DOI: 10.1021/jacs.1c10526] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yoel Negrín-Montecelo
- CINBIO, Universidade de Vigo, Department of Physical Chemistry, 36310 Vigo, España
- Instituto de Investigación Sanitaria Galicia Sur (IIS Galicia Sur), CIBERSAM. SERGAS-UVIGO 36312 Vigo, España
| | - Artur Movsesyan
- Department of Physics and Astronomy, Nanoscale and Quantum Phenomena Institute, Ohio University, Athens, Ohio 45701, United States
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Jie Gao
- Chimie et Biologie des Membranes et des Nanoobjets (CBMN), CNRS, Bordeaux INP, Université de Bordeaux, UMR 5248, 33607 Pessac, France
| | - Sven Burger
- Zuse Institute Berlin, 14195 Berlin, Germany
- JCMwave GmbH, 14050 Berlin, Germany
| | - Zhiming M. Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Sylvain Nlate
- Chimie et Biologie des Membranes et des Nanoobjets (CBMN), CNRS, Bordeaux INP, Université de Bordeaux, UMR 5248, 33607 Pessac, France
| | - Emilie Pouget
- Chimie et Biologie des Membranes et des Nanoobjets (CBMN), CNRS, Bordeaux INP, Université de Bordeaux, UMR 5248, 33607 Pessac, France
| | - Reiko Oda
- Chimie et Biologie des Membranes et des Nanoobjets (CBMN), CNRS, Bordeaux INP, Université de Bordeaux, UMR 5248, 33607 Pessac, France
| | | | - Alexander O. Govorov
- Department of Physics and Astronomy, Nanoscale and Quantum Phenomena Institute, Ohio University, Athens, Ohio 45701, United States
| | - Miguel A. Correa-Duarte
- CINBIO, Universidade de Vigo, Department of Physical Chemistry, 36310 Vigo, España
- Instituto de Investigación Sanitaria Galicia Sur (IIS Galicia Sur), CIBERSAM. SERGAS-UVIGO 36312 Vigo, España
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Cao A, Liu W, Mei-Zhen Z, Qin SY, Cheng YJ, Zhang AQ. A nanodevice with lifetime-improved singlet oxygen for enhanced photodynamic therapy. Chem Commun (Camb) 2022; 58:6227-6230. [DOI: 10.1039/d2cc01487d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The short lifetime of singlet oxygn reduces its accumulation in the ehdoplasmic reticulum, which limited the output of photodynamic therapy. A nanodevice with functions of singlet oxygen production, storage and...
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Donato M, Soto C, Lanio ME, Itri R, Álvarez C. The pore-forming activity of sticholysin I is enhanced by the presence of a phospholipid hydroperoxide in membrane. Toxicon 2021; 204:44-55. [PMID: 34736955 DOI: 10.1016/j.toxicon.2021.10.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/23/2021] [Accepted: 10/29/2021] [Indexed: 11/19/2022]
Abstract
Sticholysin I (StI) is a pore-forming toxin (PFT) belonging to the actinoporin protein family characterized by high permeabilizing activity in membranes. StI readily associates with sphingomyelin (SM)-containing membranes originating pores that can lead to cell death. Binding and pore-formation are critically dependent on the physicochemical properties of membrane. 1-palmitoyl-2-oleoylphosphatidylcholine hydroperoxide (POPC-OOH) is an oxidized phospholipid (OxPL) containing an -OOH moiety in the unsaturated hydrocarbon chain which orientates towards the bilayer interface. This orientation causes an increase in the lipid molecular area, lateral expansion and decrease in bilayer thickness, elastic and bending modulus, as well as modification of lipid packing. Taking advantage of membrane structural changes promoted by POPC-OOH, we investigated its influence on the permeabilizing ability of StI. Here we report the action of StI on Giant Unilamellar Vesicles (GUVs) made of 1-palmitoyl-2-oleoylphosphatidylcholine (POPC) and SM containing increasing amount of POPC-OOH to assess vesicle permeability changes when compared to OxPL-lacking membranes. Inclusion of POPC-OOH in membranes did not promote spontaneous vesicle leaking but resulted in increased membrane permeability due to StI action. StI activity did not modify the fluid-gel phase coexistence boundaries neither in POPC:SM or POPC-OOH:SM membranes. However, the StI insertion mechanism in membrane seems to differ between POPC:SM and POPC-OOH:SM mixtures as suggested by changes in the time course of monolayer surface tension measurements, even though a preferable binding of the toxin to OxPL-containing systems could not be here demonstrated. In summary, modifications in the membrane imposed by lipid hydroperoxidation favor StI permeabilizing activity.
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Affiliation(s)
- Maressa Donato
- Instituto de Física, Universidade de São Paulo (USP), São Paulo, SP, Brazil; Center for Laser and Applications, Nuclear and Energy Research Institute, São Paulo, Brazil
| | - Carmen Soto
- Centro de Estudio de Proteínas, Facultad de Biología, Universidad de La Habana, CP, 10400, La Habana, Cuba
| | - María Eliana Lanio
- Centro de Estudio de Proteínas, Facultad de Biología, Universidad de La Habana, CP, 10400, La Habana, Cuba
| | - Rosangela Itri
- Instituto de Física, Universidade de São Paulo (USP), São Paulo, SP, Brazil.
| | - Carlos Álvarez
- Centro de Estudio de Proteínas, Facultad de Biología, Universidad de La Habana, CP, 10400, La Habana, Cuba.
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Scanavachi G, Coutinho A, Fedorov AA, Prieto M, Melo AM, Itri R. Lipid Hydroperoxide Compromises the Membrane Structure Organization and Softens Bending Rigidity. Langmuir 2021; 37:9952-9963. [PMID: 34374545 DOI: 10.1021/acs.langmuir.1c00830] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Lipid hydroperoxides are key mediators of diseases and cell death. In this work, the structural and dynamic perturbations induced by the hydroperoxidized POPC lipid (POPC-OOH) in fluid POPC membranes, at both 23 and 37 °C, were addressed using advanced small-angle X-ray scattering (SAXS) and fluorescence methodologies. Notably, SAXS reveals that the hydroperoxide group decreases the lipid bilayer bending rigidity. This alteration disfavors the bilayer stacking and increases the swelling in-between stacked bilayers. We further investigated the changes in the apolar/polar interface of hydroperoxide-containing membranes through time-resolved fluorescence/anisotropy experiments of the probe TMA-DPH and time-dependent fluorescence shifts of Laurdan. A shorter mean fluorescence lifetime for TMA-DPH was obtained in enriched POPC-OOH membranes, revealing a higher degree of hydration near the membrane interface. Moreover, a higher microviscosity near TMA-DPH and lower order are predicted for these oxidized membranes, at variance with the usual trend of variation of these two parameters. Finally, the complex relaxation process of Laurdan in pure POPC-OOH membranes also indicates a higher membrane hydration and viscosity in the close vicinity of the -OOH moiety. Altogether, our combined approach reveals that the hydroperoxide group promotes alterations in the membrane structure organization, namely, at the level of membrane order, viscosity, and bending rigidity.
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Affiliation(s)
- Gustavo Scanavachi
- Institute of Physics, University of São Paulo, São Paulo 05508-090, Brazil
| | - Ana Coutinho
- iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, Lisboa 1049-001, Portugal
- Dep. Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, Lisboa 1749-016, Portugal
- Associate Laboratory i4HB-Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, Lisboa 1049-001, Portugal
| | - Alexander Andreevich Fedorov
- iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, Lisboa 1049-001, Portugal
- Associate Laboratory i4HB-Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, Lisboa 1049-001, Portugal
| | - Manuel Prieto
- iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, Lisboa 1049-001, Portugal
- Associate Laboratory i4HB-Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, Lisboa 1049-001, Portugal
| | - Ana M Melo
- iBB-Institute for Bioengineering and Biosciences, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, Lisboa 1049-001, Portugal
- Associate Laboratory i4HB-Institute for Health and Bioeconomy at Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, Lisboa 1049-001, Portugal
| | - Rosangela Itri
- Institute of Physics, University of São Paulo, São Paulo 05508-090, Brazil
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Tsubone TM, Martins WK, Franco MSF, Silva MN, Itri R, Baptista MS. Cellular compartments challenged by membrane photo-oxidation. Arch Biochem Biophys 2020; 697:108665. [PMID: 33159891 DOI: 10.1016/j.abb.2020.108665] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 10/20/2020] [Accepted: 10/31/2020] [Indexed: 12/18/2022]
Abstract
The lipid composition impacts directly on the structure and function of the cytoplasmic as well as organelle membranes. Depending on the type of membrane, specific lipids are required to accommodate, intercalate, or pack membrane proteins to the proper functioning of the cells/organelles. Rather than being only a physical barrier that separates the inner from the outer spaces, membranes are responsible for many biochemical events such as cell-to-cell communication, protein-lipid interaction, intracellular signaling, and energy storage. Photochemical reactions occur naturally in many biological membranes and are responsible for diverse processes such as photosynthesis and vision/phototaxis. However, excessive exposure to light in the presence of absorbing molecules produces excited states and other oxidant species that may cause cell aging/death, mutations and innumerable diseases including cancer. At the same time, targeting key compartments of diseased cells with light can be a promising strategy to treat many diseases in a clinical procedure called Photodynamic Therapy. Here we analyze the relationships between membrane alterations induced by photo-oxidation and the biochemical responses in mammalian cells. We specifically address the impact of photosensitization reactions in membranes of different organelles such as mitochondria, lysosome, endoplasmic reticulum, and plasma membrane, and the subsequent responses of eukaryotic cells.
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Affiliation(s)
| | | | - Marcia S F Franco
- 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
| | - Mauricio S Baptista
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, SP, Brazil.
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