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Wang Y, Gao S, Zhu K, Ren L, Yuan X. Integration of Trehalose Lipids with Dissociative Trehalose Enables Cryopreservation of Human RBCs. ACS Biomater Sci Eng 2023; 9:498-507. [PMID: 36577138 DOI: 10.1021/acsbiomaterials.2c01154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Cryopreservation of red blood cells (RBCs) is imperative for transfusion therapy, while cryoprotectants are essential to protect RBCs from cryoinjury under freezing temperatures. Trehalose has been considered as a biocompatible cryoprotectant that naturally accumulates in organisms to tolerate anhydrobiosis and cryobiosis. Herein, we report a feasible protocol that enables glycerol-free cryopreservation of human RBCs by integration of the synthesized trehalose lipids and dissociative trehalose through ice tuning and membrane stabilization. Typically, in comparison with sucrose monolaurate or trehalose only, trehalose monolaurate was able to protect cell membranes against freeze stress, achieving 96.9 ± 2.0% cryosurvival after incubation and cryopreservation of human RBCs with 0.8 M trehalose. Moreover, there were slight changes in cell morphology and cell functions. It was further confirmed by isothermal titration calorimetry and osmotic fragility tests that the moderate membrane-binding activity of trehalose lipids exerted cell stabilization for high cryosurvival. The aforementioned study is likely to provide an alternative way for glycerol-free cryopreservation of human RBCs and other types of cells.
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Affiliation(s)
- Yan Wang
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin300350, China
| | - Shuhui Gao
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin300350, China
| | - Kongying Zhu
- Analysis and Measurement Center, Tianjin University, Tianjin300072, China
| | - Lixia Ren
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin300350, China
| | - Xiaoyan Yuan
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin300350, China
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2
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Kralj-Iglič V, Pocsfalvi G, Mesarec L, Šuštar V, Hägerstrand H, Iglič A. Minimizing isotropic and deviatoric membrane energy - An unifying formation mechanism of different cellular membrane nanovesicle types. PLoS One 2020; 15:e0244796. [PMID: 33382808 PMCID: PMC7775103 DOI: 10.1371/journal.pone.0244796] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 12/16/2020] [Indexed: 12/25/2022] Open
Abstract
Tiny membrane-enclosed cellular fragments that can mediate interactions between cells and organisms have recently become a subject of increasing attention. In this work the mechanism of formation of cell membrane nanovesicles (CNVs) was studied experimentally and theoretically. CNVs were isolated by centrifugation and washing of blood cells and observed by optical microscopy and scanning electron microscopy. The shape of the biological membrane in the budding process, as observed in phospholipid vesicles, in erythrocytes and in CNVs, was described by an unifying model. Taking the mean curvature h and the curvature deviator d of the membrane surface as the relevant parameters, the shape and the distribution of membrane constituents were determined theoretically by minimization of membrane free energy. Considering these results and previous results on vesiculation of red blood cells it was interpreted that the budding processes may lead to formation of different types of CNVs as regards the compartment (exo/endovesicles), shape (spherical/tubular/torocytic) and composition (enriched/depleted in particular kinds of molecules). It was concluded that the specificity of pinched off nanovesicles derives from the shape of the membrane constituents and not primarily from their chemical identity, which explains evidences on great heterogeneity of isolated extracellular vesicles with respect to composition. One of the amazing properties of a biological membrane is the ability to undergo dramatic changes of its shape. It may exhibit very high curvature and thereby enclose nano-sized compartments that pinch off from the mother membrane and become freely moving cellular nanovesicles (CNVs). CNVs externalize the pieces of the cell and make them available to other cells within the same organism or other organisms. Therefore they have been acknowledged as mediators of communication between microorganisms, plants, animals and human. Furthernore, they dwell on the border between living and non-living things. Recent findings report on heterogeneity of the size and composition of CNVs found in isolates from different biological samples. As communication between cells is involved in many physiological and patophysiological processes, it is of importance to understand the mechanisms of CNVs formation and recognize the natural laws that mainly govern them. We point to an unifying mechanism that explains stability of differently shaped and composed CNVs by taking into account that the biological membrane tends to attain the minimum of its relevant energy. Conveniently, the procedure can be described by a mathematical model which allows for transparent comparison between experimentally induced shapes of membrane-enclosed vesicular structures and numerical calculations.
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Affiliation(s)
- Veronika Kralj-Iglič
- Faculty of Health Sciences, Laboratory of Clinical Biophysics, University of Ljubljana, Ljubljana, Slovenia
- Extracellular Vesicles and Mass Spetrometry Group, Institute of Biosciences and Bioresources, National Research Council of Italy, Napoli, Italy
- * E-mail:
| | - Gabriella Pocsfalvi
- Extracellular Vesicles and Mass Spetrometry Group, Institute of Biosciences and Bioresources, National Research Council of Italy, Napoli, Italy
| | - Luka Mesarec
- Faculty of Electrical Engineering, Laboratory of Physics, University of Ljubljana, Ljubljana, Slovenia
| | - Vid Šuštar
- Faculty of Medicine, Lymphocyte Cytoskeleton Group, University of Turku, Turku, Finland
| | - Henry Hägerstrand
- Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Åbo/Turku, Finland
- Novia University of Applied Sciences, Ekenäs, Finland
| | - Aleš Iglič
- Extracellular Vesicles and Mass Spetrometry Group, Institute of Biosciences and Bioresources, National Research Council of Italy, Napoli, Italy
- Faculty of Electrical Engineering, Laboratory of Physics, University of Ljubljana, Ljubljana, Slovenia
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3
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Ichikawa J, Koshino I, Arashiki N, Nakamura F, Komori M. Changes in Erythrocyte Morphology at Initiation of Cardiopulmonary Bypass Without Blood Transfusion Were Not Associated With Less Deformability During Cardiac Surgery. J Cardiothorac Vasc Anesth 2019; 33:2960-2967. [DOI: 10.1053/j.jvca.2019.03.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 03/12/2019] [Accepted: 03/14/2019] [Indexed: 11/11/2022]
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4
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Habibi S, Lee HY, Moncada-Hernandez H, Gooding J, Minerick AR. Impacts of low concentration surfactant on red blood cell dielectrophoretic responses. BIOMICROFLUIDICS 2019; 13:054101. [PMID: 31531153 PMCID: PMC6746619 DOI: 10.1063/1.5113735] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 09/02/2019] [Indexed: 06/10/2023]
Abstract
Cell dielectrophoretic responses have been extensively studied for biomarker expression, blood typing, sepsis, circulating tumor cell separations, and others. Surfactants are often added to the analytical buffer in electrokinetic cellular microfluidic systems to lower surface/interfacial tensions. In nonelectrokinetic systems, surfactants influence cell size, shape, and agglomeration; this has not been systematically documented in electrokinetic systems. In the present work, the impacts of the Triton X-100 surfactant on human red blood cells (RBCs) were explored via ultraviolet-visible spectroscopy (UV-Vis) and dielectrophoresis (DEP) to compare nonelectrokinetic and electrokinetic responses, respectively. The UV-Vis spectra of Triton X-100 treated RBCs were dramatically different from that of native RBCs. DEP responses of RBCs were compared to RBCs treated with low concentrations of Triton X-100 (0.07-0.17 mM) to ascertain surfactant effects on dielectric properties. A star-shaped electrode design was used to quantify RBC dielectric properties by fitting a single-shell oblate cell model to experimentally-derived DEP spectra. The presence of 0.07 and 0.11 mM of Triton X-100 shifted the RBC's DEP spectra yielding lower crossover frequencies ( f C O ) . The single-shell oblate model revealed that cell radius and membrane permittivity are the dominant influencers of DEP spectral shifts. The trends observed were similar for 0.11 mM and 0.07 mM Triton X-100 treated cells. However, a further increase of Triton X-100 to 0.17 mM caused cells to only exhibit negative DEP. The magnitude of the DEP force increased with Triton X-100 concentration. This work indicates that dynamic surfactant interactions with cell membranes alter cell dielectric responses and properties.
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Pruchnik H, Włoch A, Bonarska-Kujawa D, Kleszczyńska H. An In Vitro Study of the Effect of Cytotoxic Triorganotin Dimethylaminophenylazobenzoate Complexes on Red Blood Cells. J Membr Biol 2018; 251:735-745. [PMID: 30350012 PMCID: PMC6244762 DOI: 10.1007/s00232-018-0051-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 10/13/2018] [Indexed: 10/31/2022]
Abstract
Interactions of tributyltin (TBTA) and triphenyltin (TPhTA) 2-[4 (dimethylamino)phenylazo]benzoates, showing promising cytostatic activity against tumor cells, with erythrocytes and with erythrocyte membranes and model lipid membranes have been investigated. The effect of TBTA and TPhTA on the erythrocyte and its model membrane was investigated by the microscopic and spectroscopic methods. Interaction of tin complexes with the membrane was determined on the basis of hemolytic activity, changes induced in the shape of erythrocytes, as well as physicochemical parameters of the membrane, such as fluidity. The studies showed that the compounds in higher concentration induce hemolysis; however, TBTA is more toxic than TPhTA. Both TBTA and TPhTA induce morphological alterations in red blood cells-from discocytes to spherocytes and from discocytes to echinocytes. The results suggest that investigated complexes interact with the erythrocyte membrane, change its properties, and probably locate themselves in the hydrophilic part of the membrane, which agrees with conclusions drawn from investigation of erythrocyte membranes and model lipid membranes with the help of fluorescence and infrared spectroscopy.
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Affiliation(s)
- Hanna Pruchnik
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, ul. C.K. Norwida 25, 50-375 Wrocław, Poland
| | - Aleksandra Włoch
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, ul. C.K. Norwida 25, 50-375 Wrocław, Poland
| | - Dorota Bonarska-Kujawa
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, ul. C.K. Norwida 25, 50-375 Wrocław, Poland
| | - Halina Kleszczyńska
- Department of Physics and Biophysics, Wrocław University of Environmental and Life Sciences, ul. C.K. Norwida 25, 50-375 Wrocław, Poland
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6
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Wong P. An explanation of the reversal of erythrocyte echinocytosis by incubation and storage by serum albumin. Clin Hemorheol Microcirc 2018; 68:383-389. [PMID: 29660927 DOI: 10.3233/ch-170292] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
It is proposed that the specific reversal by serum albumin of the erythrocyte echinocytosis in an inorganic phosphate buffer saline or in a saline, either after 24 h in blood or after a storage of 6-7 weeks in SGAM or PAGGSM media, is due to a cell dehydration by a decrease of the total NaCl and KCl concentrations favoring the stomatocytogenic slow outward transport of inorganic phosphate with a hydrogen ion by band 3 anion exchanger, which was previously proposed to control the erythrocyte shape. This proposal would indicate that the opposition of the erythrocyte echinocytosis by serum albumin is not limited to binding to echinocytogenic amphiphiles, supported by the ability of the band 3-based mechanism of control of the erythrocyte shape to explain a variety of observations on the erythrocyte shape. It would also imply that this mechanism is a determinant of the erythrocyte rheological properties since influenced by cell shape and volume. It is shown that the above process of stomatocytosis can explain stomatocytoses by different agents as well as a knizocytosis induced in vitro and occurring in acquired and inherited disorders and other situations. Lastly, it can also explain the opposition of hemolysis by mannitol in SGAM and PAGGSM media.
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Affiliation(s)
- P Wong
- Laboratoire de Chimie des Protéines, Montréal, QC, Canada
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7
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Kato H, Komagoe K, Inoue T, Masuda K, Katsu T. Structure–activity relationship of porphyrin-induced photoinactivation with membrane function in bacteria and erythrocytes. Photochem Photobiol Sci 2018; 17:954-963. [DOI: 10.1039/c8pp00092a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We analyzed the structure–activity relationship of natural porphyrins and the related analogs with the photoinactivation of membrane function in bacteria and erythrocytes.
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Affiliation(s)
| | - Keiko Komagoe
- Faculty of Pharmaceutical Sciences
- Okayama University
- Okayama 700-8530
- Japan
| | - Tsuyoshi Inoue
- Graduate School of Medicine
- Dentistry and Pharmaceutical Sciences
- Okayama University
- Okayama 700-8530
- Japan
| | - Kazufumi Masuda
- Graduate School of Clinical Pharmacy
- Shujitsu University
- Japan
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8
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Parshina EY, Silicheva MA, Volod’kin AA, Gendel LY. The effect of synthetic antioxidants, anphen derivatives, on erythrocyte morphology. Biophysics (Nagoya-shi) 2017. [DOI: 10.1134/s0006350917050189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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9
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Kozlovskaya V, Xue B, Kharlampieva E. Shape-Adaptable Polymeric Particles for Controlled Delivery. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01740] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Veronika Kozlovskaya
- Chemistry Department and ‡Center for Nanomaterials
and Biointegration, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States
| | - Bing Xue
- Chemistry Department and ‡Center for Nanomaterials
and Biointegration, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States
| | - Eugenia Kharlampieva
- Chemistry Department and ‡Center for Nanomaterials
and Biointegration, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States
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10
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Manaargadoo-Catin M, Ali-Cherif A, Pougnas JL, Perrin C. Hemolysis by surfactants--A review. Adv Colloid Interface Sci 2016; 228:1-16. [PMID: 26687805 DOI: 10.1016/j.cis.2015.10.011] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 10/09/2015] [Indexed: 02/07/2023]
Abstract
An overview of the use of surfactants for erythrocyte lysis and their cell membrane action mechanisms is given. Erythrocyte membrane characteristics and its association with the cell cytoskeleton are presented in order to complete understanding of the erythrocyte membrane distortion. Cell homeostasis disturbances caused by surfactants might induce changes starting from shape modification to cell lysis. Two main mechanisms are hypothesized in literature which are osmotic lysis and lysis by solubilization even if the boundary between them is not clearly defined. Another specific mechanism based on the formation of membrane pores is suggested in the particular case of saponins. The lytic potency of a surfactant is related to its affinity for the membrane and the modification of the lipid membrane curvature. This is to be related to the surfactant shape defined by its hydrophobic and hydrophilic moieties but also by experimental conditions. As a consequence, prediction of the hemolytic potency of a given surfactant is challenging. Several studies are focused on the relation between surfactant erythrolytic potency and their physico-chemical parameters such as the critical micellar concentration (CMC), the hydrophile-lipophile balance (HLB), the surfactant membrane/water partition coefficient (K) or the packing parameter (P). The CMC is one of the most important factors considered even if a lytic activity cut-off effect points out that the only consideration of CMC not enough predictive. The relation K.CMC must be considered in addition to the CMC to predict the surfactant lytic capacity within the same family of non ionic surfactant. Those surfactant structure/lytic activity studies demonstrate the requirement to take into account a combination of physico-chemical parameters to understand and foresee surfactant lytic potency.
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Affiliation(s)
- Magalie Manaargadoo-Catin
- Horiba Medical, Parc Euromédecine, Rue du caducée BP 7290, 31484 Montpellier Cedex 4, France; Institut des Biomolécules Max Mousseron, UMR 5247, Université de Montpellier, 15 avenue Charles Flahault, 34093 Montpellier Cedex, France
| | - Anaïs Ali-Cherif
- Horiba Medical, Parc Euromédecine, Rue du caducée BP 7290, 31484 Montpellier Cedex 4, France
| | - Jean-Luc Pougnas
- Horiba Medical, Parc Euromédecine, Rue du caducée BP 7290, 31484 Montpellier Cedex 4, France
| | - Catherine Perrin
- Institut des Biomolécules Max Mousseron, UMR 5247, Université de Montpellier, 15 avenue Charles Flahault, 34093 Montpellier Cedex, France.
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11
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Morán MC, Tozar T, Simon A, Dinache A, Smarandache A, Andrei IR, Boni M, Pascu ML, Cirisano F, Ferrari M. Toxicity study in blood and tumor cells of laser produced medicines for application in fabrics. Colloids Surf B Biointerfaces 2015; 137:91-103. [PMID: 26187648 DOI: 10.1016/j.colsurfb.2015.06.041] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2015] [Revised: 06/15/2015] [Accepted: 06/22/2015] [Indexed: 12/31/2022]
Abstract
Phenothiazine derivatives are non-antibiotics with antimicrobial, fungistatic and fungicidal effects. We exposed to a high energy UV laser beam phenothiazines solutions in water at 20mg/mL concentration to increase antibacterial activity of resulting mixtures. Compared to previous results obtained on bacteria, more research is needed about UV laser irradiated phenothiazines applications on cancer cell cultures to evidence possible anticancerous properties. Evaluation of the safety of the newly obtained photoproducts in view of use on humans is also needed. Due to expensive animal testing in toxicology and pressure from general public and governments to develop alternatives to in vivo testing, in vitro cell-based models are attractive for preliminary testing of new materials. Cytotoxicity screening reported here shows that laser irradiated (4h exposure time length) chlorpromazine and promazine are more efficient against some cell cultures. Interaction of laser irradiated phenothiazines with fabrics show that promethazine and chlorpromazine have improved wetting properties. Correlation of these two groups of properties shows that chlorpromazine appears to be more recommended for applications on tissues using fabrics as transport vectors. The reported results concern stability study of phenothiazines water solutions to know the time limits within which they are stable and may be used.
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Affiliation(s)
- M Carmen Morán
- Departament de Fisiologia, Facultat de Farmàcia, Universitat de Barcelona, Avda. Joan XXIII s/n, 08028 Barcelona, Spain; Institut de Nanociència i Nanotecnologia-IN(2)UB, Universitat de Barcelona, Avda. Joan XXIII s/n, 08028 Barcelona, Spain.
| | - Tatiana Tozar
- National Institute for Laser, Plasma and Radiation Physics, 077125 Magurele, Romania; Faculty of Physics, University of Bucharest, 077125 Magurele, Romania
| | - Agota Simon
- National Institute for Laser, Plasma and Radiation Physics, 077125 Magurele, Romania; Faculty of Physics, University of Bucharest, 077125 Magurele, Romania
| | - Andra Dinache
- National Institute for Laser, Plasma and Radiation Physics, 077125 Magurele, Romania; Faculty of Physics, University of Bucharest, 077125 Magurele, Romania
| | - Adriana Smarandache
- National Institute for Laser, Plasma and Radiation Physics, 077125 Magurele, Romania; Faculty of Physics, University of Bucharest, 077125 Magurele, Romania
| | - Ionut Relu Andrei
- National Institute for Laser, Plasma and Radiation Physics, 077125 Magurele, Romania
| | - Mihai Boni
- National Institute for Laser, Plasma and Radiation Physics, 077125 Magurele, Romania; Faculty of Physics, University of Bucharest, 077125 Magurele, Romania
| | - Mihail Lucian Pascu
- National Institute for Laser, Plasma and Radiation Physics, 077125 Magurele, Romania; Faculty of Physics, University of Bucharest, 077125 Magurele, Romania
| | | | - Michele Ferrari
- CNR - Istituto per l' Energetica e le Interfasi, 16149 Genova, Italy
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12
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Bonarska-Kujawa D, Cyboran-Mikołajczyk S, Kleszczyńska H. Molecular mechanism of action of chlorogenic acid on erythrocyte and lipid membranes. Mol Membr Biol 2015; 32:46-54. [DOI: 10.3109/09687688.2015.1031833] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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13
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Carvalho L, Morales JC, Pérez-Victoria JM, Pérez-Victoria I. Hemolytic activity and solubilizing capacity of raffinose and melezitose fatty acid monoesters prepared by enzymatic synthesis. Eur J Pharm Biopharm 2015; 92:139-45. [DOI: 10.1016/j.ejpb.2015.02.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 02/08/2015] [Accepted: 02/26/2015] [Indexed: 02/02/2023]
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14
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Selvaraj S, Krishnaswamy S, Devashya V, Sethuraman S, Krishnan UM. Influence of membrane lipid composition on flavonoid-membrane interactions: Implications on their biological activity. Prog Lipid Res 2014; 58:1-13. [PMID: 25479162 DOI: 10.1016/j.plipres.2014.11.002] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 10/29/2014] [Accepted: 11/24/2014] [Indexed: 01/22/2023]
Abstract
The membrane interactions and localization of flavonoids play a vital role in altering membrane-mediated cell signaling cascades as well as influence the pharmacological activities such as anti-tumour, anti-microbial and anti-oxidant properties of flavonoids. Various techniques have been used to investigate the membrane interaction of flavonoids. These include partition coefficient, fluorescence anisotropy, differential scanning calorimetry, NMR spectroscopy, electrophysiological methods and molecular dynamics simulations. Each technique will provide specific information about either alteration of membrane fluidity or localization of flavonoids within the lipid bilayer. Apart from the diverse techniques employed, the concentrations of flavonoids and lipid membrane composition employed in various studies reported in literature also are different and together these variables contribute to diverse findings that sometimes contradict each other. This review highlights different techniques employed to investigate the membrane interaction of flavonoids with special emphasis on erythrocyte model membrane systems and their significance in understanding the nature and extent of flavonoid-membrane interactions. We also attempt to correlate the membrane localization and alteration in membrane fluidity with the biological activities of flavonoids such as anti-oxidant, anti-cancer and anti-microbial properties.
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Affiliation(s)
- Stalin Selvaraj
- Centre for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology, SASTRA University, Thanjavur 613 401, India
| | - Sridharan Krishnaswamy
- Centre for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology, SASTRA University, Thanjavur 613 401, India
| | - Venkappayya Devashya
- Centre for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology, SASTRA University, Thanjavur 613 401, India
| | - Swaminathan Sethuraman
- Centre for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology, SASTRA University, Thanjavur 613 401, India
| | - Uma Maheswari Krishnan
- Centre for Nanotechnology & Advanced Biomaterials, School of Chemical & Biotechnology, SASTRA University, Thanjavur 613 401, India.
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15
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Morán MC, Jorge AF, Vinardell MP. Sustainable DNA Release from Chitosan/Protein Based-DNA Gel Particles. Biomacromolecules 2014; 15:3953-64. [DOI: 10.1021/bm501039g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M. Carmen Morán
- Departament
de Fisiologia, Facultat de Farmàcia, Universitat de Barcelona, Avda. Joan XXIII, 08028 Barcelona, Spain
- Interaction of Surfactants with Cell Membranes, Unit Associated with CSIC, Facultat de Farmàcia, Universitat de Barcelona, Avda. Joan XXII, 08028 Barcelona, Spain
| | - Andreia F. Jorge
- Department
of Chemistry, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal
| | - M. Pilar Vinardell
- Departament
de Fisiologia, Facultat de Farmàcia, Universitat de Barcelona, Avda. Joan XXIII, 08028 Barcelona, Spain
- Interaction of Surfactants with Cell Membranes, Unit Associated with CSIC, Facultat de Farmàcia, Universitat de Barcelona, Avda. Joan XXII, 08028 Barcelona, Spain
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16
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Reinhart WH, Lubszky S, Thöny S, Schulzki T. Interaction of injectable neurotropic drugs with the red cell membrane. Toxicol In Vitro 2014; 28:1274-9. [DOI: 10.1016/j.tiv.2014.06.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 06/12/2014] [Accepted: 06/23/2014] [Indexed: 11/30/2022]
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17
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Monitoring of membrane phospholipid scrambling in human erythrocytes and K562 cells with FM1-43 - a comparison with annexin V-FITC. Cell Mol Biol Lett 2014; 19:262-76. [PMID: 24764144 PMCID: PMC6276018 DOI: 10.2478/s11658-014-0195-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Accepted: 04/16/2014] [Indexed: 12/29/2022] Open
Abstract
The styryl dye FM1-43 becomes highly fluorescent upon binding to cell membranes. The breakdown of membrane phospholipid asymmetry in ionophore-stimulated T-lymphocytes further increases this fluorescence [Zweifach, 2000]. In this study, the capacity of FM1-43 to monitor membrane phospholipid scrambling was explored using flow cytometry in human erythrocytes and human erythrocyte progenitor K562 cells. The Ca2+-dependent phosphatidylserine-specific probe annexin V-FITC was used for comparison. The presented data show that the loss of phospholipid asymmetry that could be induced in human erythrocytes by elevated intracellular Ca2+ or by structurally different membrane intercalated amphiphilic compounds increases the FM1-43 fluorescence two- to fivefold. The profile of FM1-43 fluorescence for various treatments resembles that of phosphatidylserine exposure reported by annexin V-FITC. FM1-43 detected the onset of scrambling more efficiently than annexin V-FITC. The amphiphile-induced scrambling was shown to be a Ca2+-independent process. Monitoring of scrambling in K562 cells caused by NEM-induced Ca2+-release from intracellular stores and by Ca2+ and ionophore A23187 treatment showed that the increase in FM1-43 fluorescence correlated well with the number of annexin V-FITC-detected phosphatidylserine-positive cells. The results presented here show the usefulness of FM1-43 as a Ca2+-independent marker of dissipation in asymmetric membrane phospholipid distribution induced by various stimuli in both nucleated and non-nucleated cells.
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18
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Morán MC, Vinardell MP, Infante MR, Miguel MG, Lindman B. DNA gel particles: an overview. Adv Colloid Interface Sci 2014; 205:240-56. [PMID: 24119768 DOI: 10.1016/j.cis.2013.09.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Revised: 09/10/2013] [Accepted: 09/19/2013] [Indexed: 01/01/2023]
Abstract
A general understanding of interactions between DNA and oppositely charged compounds forms the basis for developing novel DNA-based materials, including gel particles. The association strength, which is altered by varying the chemical structure of the cationic cosolute, determines the spatial homogeneity of the gelation process, creating DNA reservoir devices and DNA matrix devices that can be designed to release either single- (ssDNA) or double-stranded (dsDNA) DNA. This review covers recent developments on the topic of DNA gel particles formed in water-water emulsion-type interfaces. The degree of DNA entrapment, particle morphology, swelling/dissolution behavior and DNA release responses are discussed as functions of the nature of the cationic agent used. On the basis of designing DNA gel particles for therapeutic purposes, recent studies on the determination of the surface hydrophobicity and the hemolytic and the cytotoxic assessments of the obtained DNA gel particles have been also reported.
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Affiliation(s)
- M Carmen Morán
- Departament de Fisiologia, Facultat de Farmàcia, Universitat de Barcelona, Avda. Joan XXIII, 08028 Barcelona, Spain; Interaction of Surfactants with Cell Membranes, Unit Associated with CSIC, Facultat de Farmàcia, Universitat de Barcelona, Avda. Joan XXII, 08028 Barcelona, Spain.
| | - M Pilar Vinardell
- Departament de Fisiologia, Facultat de Farmàcia, Universitat de Barcelona, Avda. Joan XXIII, 08028 Barcelona, Spain; Interaction of Surfactants with Cell Membranes, Unit Associated with CSIC, Facultat de Farmàcia, Universitat de Barcelona, Avda. Joan XXII, 08028 Barcelona, Spain
| | - M Rosa Infante
- Interaction of Surfactants with Cell Membranes, Unit Associated with CSIC, Facultat de Farmàcia, Universitat de Barcelona, Avda. Joan XXII, 08028 Barcelona, Spain; Departamento de Tecnología de Tensioactivos, IQAC-CSIC, C/Jordi Girona 18-26, 08034 Barcelona, Spain
| | - M Graça Miguel
- Department of Chemistry, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal
| | - Björn Lindman
- Department of Chemistry, University of Coimbra, Rua Larga, 3004-535 Coimbra, Portugal; Physical Chemistry 1, University of Lund, P.O. Box 124, 22100 Lund, Sweden
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19
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Biological activity of blackcurrant Extracts (Ribes nigrum L.) in relation to erythrocyte membranes. BIOMED RESEARCH INTERNATIONAL 2014; 2014:783059. [PMID: 24527456 PMCID: PMC3914294 DOI: 10.1155/2014/783059] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Accepted: 11/28/2013] [Indexed: 11/17/2022]
Abstract
Compounds contained in fruits and leaves of blackcurrant (Ribes nigrum L.) are known as agents acting preventively and therapeutically on the organism. The HPLC analysis showed they are rich in polyphenol anthocyanins in fruits and flavonoids in leaves, that have antioxidant activity and are beneficial for health. The aim of the research was to determine the effect of blackcurrant fruit and leaf extracts on the physical properties of the erythrocyte membranes and assess their antioxidant properties. The effect of the extracts on osmotic resistance, shape of erythrocytes and hemolytic and antioxidant activity of the extracts were examined with spectrophotometric methods. The FTIR investigation showed that extracts modify the erythrocyte membrane and protect it against free radicals induced by UV radiation. The results show that the extracts do not induce hemolysis and even protect erythrocytes against the harmful action of UVC radiation, while slightly strengthening the membrane and inducing echinocytes. The compounds contained in the extracts do not penetrate into the hydrophobic region, but bind to the membrane surface inducing small changes in the packing arrangement of the polar head groups of membrane lipids. The extracts have a high antioxidant activity. Their presence on the surface of the erythrocyte membrane entails protection against free radicals.
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20
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Selvaraj S, Krishnaswamy S, Devashya V, Sethuraman S, Krishnan UM. Investigations on the membrane interactions of naringin and its complexes with copper and iron: implications for their cytotoxicity. RSC Adv 2014. [DOI: 10.1039/c4ra08157a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Flavonoid glycosides are a group of polyphenols with different glycoside substituents that possess diverse pharmacological activities albeit with lesser potency than their aglycone counterparts.
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Affiliation(s)
- Stalin Selvaraj
- Centre for Nanotechnology & Advanced Biomaterials
- School of Chemical & Biotechnology
- SASTRA University
- Thanjavur – 613 401, India
| | - Sridharan Krishnaswamy
- Centre for Nanotechnology & Advanced Biomaterials
- School of Chemical & Biotechnology
- SASTRA University
- Thanjavur – 613 401, India
| | - Venkappayya Devashya
- Centre for Nanotechnology & Advanced Biomaterials
- School of Chemical & Biotechnology
- SASTRA University
- Thanjavur – 613 401, India
| | - Swaminathan Sethuraman
- Centre for Nanotechnology & Advanced Biomaterials
- School of Chemical & Biotechnology
- SASTRA University
- Thanjavur – 613 401, India
| | - Uma Maheswari Krishnan
- Centre for Nanotechnology & Advanced Biomaterials
- School of Chemical & Biotechnology
- SASTRA University
- Thanjavur – 613 401, India
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21
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Walcourt A, Kurantsin-Mills J, Kwagyan J, Adenuga BB, Kalinowski DS, Lovejoy DB, Lane DJR, Richardson DR. Anti-plasmodial activity of aroylhydrazone and thiosemicarbazone iron chelators: effect on erythrocyte membrane integrity, parasite development and the intracellular labile iron pool. J Inorg Biochem 2013; 129:43-51. [PMID: 24028863 PMCID: PMC3838870 DOI: 10.1016/j.jinorgbio.2013.08.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Revised: 08/19/2013] [Accepted: 08/19/2013] [Indexed: 01/10/2023]
Abstract
Iron chelators inhibit the growth of the malaria parasite, Plasmodium falciparum, in culture and in animal and human studies. We previously reported the anti-plasmodial activity of the chelators, 2-hydroxy-1-naphthylaldehyde isonicotinoyl hydrazone (311), 2-hydroxy-1-naphthylaldehyde 4-methyl-3-thiosemicarbazone (N4mT), and 2-hydroxy-1-naphthylaldehyde 4-phenyl-3-thiosemicarbazone (N4pT). In fact, these ligands showed greater growth inhibition of chloroquine-sensitive (3D7) and chloroquine-resistant (7G8) strains of P. falciparum in culture compared to desferrioxamine (DFO). The present study examined the effects of 311, N4mT and N4pT on erythrocyte membrane integrity and asexual parasite development. While the characteristic biconcave disk shape of the erythrocytes was unaffected, the chelators caused very slight hemolysis at IC50 values that inhibited parasite growth. The chelators 311, N4mT and N4pT affected all stages of the intra-erythrocytic development cycle (IDC) of P. falciparum in culture. However, while these ligands primarily affected the ring-stage, DFO inhibited primarily trophozoite and schizont-stages. Ring, trophozoite and schizont-stages of the IDC were inhibited by significantly lower concentrations of 311, N4mT, and N4pT (IC50=4.45±1.70, 10.30±4.40, and 3.64±2.00μM, respectively) than DFO (IC50=23.43±3.40μM). Complexation of 311, N4mT and N4pT with iron reduced their anti-plasmodial activity. Estimation of the intracellular labile iron pool (LIP) in erythrocytes showed that the chelation efficacy of 311, N4mT and N4pT corresponded to their anti-plasmodial activities, suggesting that the LIP may be a potential source of non-heme iron for parasite metabolism within the erythrocyte. This study has implications for malaria chemotherapy that specifically disrupts parasite iron utilization.
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Affiliation(s)
- Asikiya Walcourt
- Department of Physiology and Biophysics, Howard University College of Medicine, Washington, DC, 20059
| | - Joseph Kurantsin-Mills
- Department of Physiology and Biophysics, Howard University College of Medicine, Washington, DC, 20059
- Departments of Medicine, Pharmacology and Physiology, The George Washington University Medical Center, Washington, DC, 20037
| | - John Kwagyan
- Design, Biostatistics & Population Studies, Center for Clinical & Translation Science and Department of Community and Family Medicine, Howard University College of Medicine, Washington, DC,20059
| | | | - Danuta S. Kalinowski
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, Blackburn Building (D06), University of Sydney, Sydney, New South Wales, 2006 Australia
| | - David B. Lovejoy
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, Blackburn Building (D06), University of Sydney, Sydney, New South Wales, 2006 Australia
| | - Darius J. R. Lane
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, Blackburn Building (D06), University of Sydney, Sydney, New South Wales, 2006 Australia
| | - Des R. Richardson
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, Blackburn Building (D06), University of Sydney, Sydney, New South Wales, 2006 Australia
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Muñoz S, Sebastián JL, Sancho M, Alvarez G. Elastic energy of the discocyte-stomatocyte transformation. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2013; 1838:950-6. [PMID: 24192054 DOI: 10.1016/j.bbamem.2013.10.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 10/10/2013] [Accepted: 10/28/2013] [Indexed: 11/30/2022]
Abstract
The aim of this study is to calculate the membrane elastic energy for the different shapes observed in the discocyte-stomatocyte sequence. This analysis can provide a better quantitative understanding of the hypothesis put forward over the last decades to explain how red blood cells produce and maintain their typical shape. For this purpose, we use geometrical models based on parametric equations. The energy model considered for the elastic properties of RBC membrane includes the local and nonlocal resistance effects of the bilayer to bending. In particular, the results confirm the discocyte as the lowest energy value configuration among the sets of different red blood cell deformations considered in the sequence.
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Affiliation(s)
- S Muñoz
- Departamento de Física Aplicada III, Facultad de Ciencias Físicas, Universidad Complutense, 28040 Madrid, Spain.
| | - J L Sebastián
- Departamento de Física Aplicada III, Facultad de Ciencias Físicas, Universidad Complutense, 28040 Madrid, Spain
| | - M Sancho
- Departamento de Física Aplicada III, Facultad de Ciencias Físicas, Universidad Complutense, 28040 Madrid, Spain
| | - G Alvarez
- Departamento de Física Aplicada III, Facultad de Ciencias Físicas, Universidad Complutense, 28040 Madrid, Spain
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23
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Bonarska-Kujawa D, Kleszczyńska H, Przestalski S. The location of organotins within the erythrocyte membrane in relation to their toxicity. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2012; 78:232-238. [PMID: 22153305 DOI: 10.1016/j.ecoenv.2011.11.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Revised: 11/12/2011] [Accepted: 11/19/2011] [Indexed: 05/31/2023]
Abstract
The aim of the present study on organotin compounds, which are toxic to biological systems, was to determine the relationship between the compounds' toxicity and their location in the lipid bilayer of the biological membrane. It was assumed that the degree of disturbance caused within the lipid bilayer of the membrane, which in turn depends on the depth of incorporation, was an appropriate measure of toxicity. Previous results from our studies on the effect of organotin chlorides on membranes, made by using infrared radiation and hemolysis of erythrocytes, indicated that tributyltin (TBT) is the most active in terms of its interaction with the erythrocyte membrane. This compound causes the most severe hemolysis of erythrocytes and dehydration of membrane constituents. In order to connect the changes induced within the membrane structure with the compounds' location, we have investigated erythrocyte shape changes using both microscopic and fluorimetric methods. The microscopic results show that organotin compounds accumulate in the outer monolayer of the membrane. The fluorimetric studies indicate that all the compounds are present in the hydrophilic part of the outer lipid monolayer, and change the order parameter of the layer. However, only tributyltin, by being incorporated into the hydrophobic region of the monolayer, changes the fluidity in the alkyl chain region of the erythrocyte membrane. Furthermore, only TBT is present in both the hydrophilic and hydrophobic regions, as evidenced by the changed order parameter of the polar groups and fluorescence anisotropy of DPH probe in the hydrophobic region, these being connected with its high toxicity.
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Affiliation(s)
- Dorota Bonarska-Kujawa
- Department of Physics and Biophysics, WrocŁaw University of Environmental and Life Sciences, Norwida 25, 50-375 WrocŁaw, Poland.
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24
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Interaction of selected anthocyanins with erythrocytes and liposome membranes. Cell Mol Biol Lett 2012; 17:289-308. [PMID: 22396139 PMCID: PMC6275648 DOI: 10.2478/s11658-012-0010-y] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Accepted: 03/01/2012] [Indexed: 11/20/2022] Open
Abstract
Anthocyanins are one of the main flavonoid groups. They are responsible for, e.g., the color of plants and have antioxidant features and a wide spectrum of medical activity. The subject of the study was the following compounds that belong to the anthocyanins and which can be found, e.g., in strawberries and chokeberries: callistephin chloride (pelargonidin-3-O-glucoside chloride) and ideain chloride (cyanidin-3-O-galactoside chloride). The aim of the study was to determine the compounds’ antioxidant activity towards the erythrocyte membrane and changes incurred by the tested anthocyanins in the lipid phase of the erythrocyte membrane, in liposomes composed of erythrocyte lipids and in DPPC, DPPC/cholesterol and egg lecithin liposomes. In particular, we studied the effect of the two selected anthocyanins on red blood cell morphology, on packing order in the lipid hydrophilic phase, on fluidity of the hydrophobic phase, as well as on the temperature of phase transition in DPPC and DPPC/cholesterol liposomes. Fluorimetry with the Laurdan and Prodan probes indicated increased packing density in the hydrophilic phase of the membrane in the presence of anthocyanins. Using the fluorescence probes DPH and TMA-DPH, no effect was noted inside the hydrophobic phase of the membrane, as the lipid bilayer fluidity was not modified. The compounds slightly lowered the phase transition temperature of phosphatidylcholine liposomes. The study has shown that both anthocyanins are incorporated into the outer region of the erythrocyte membrane, affecting its shape and lipid packing order, which is reflected in the increasing number of echinocytes. The investigation proved that the compounds penetrate only the outer part of the external lipid layer of liposomes composed of erythrocyte lipids, DPPC, DPPC/cholesterol and egg lecithin lipids, changing its packing order. Fluorimetry studies with DPH-PA proved that the tested anthocyanins are very effective antioxidants. The antioxidant activity of the compounds was comparable with the activity of Trolox®.
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25
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Curvature factor and membrane solubilization, with particular reference to membrane rafts. Cell Biol Int 2012; 35:991-5. [PMID: 21438858 DOI: 10.1042/cbi20100786] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The composition of membrane rafts (cholesterol/sphingolipid-rich domains) cannot be fully deduced from the analysis of a detergent-resistant membrane fraction after solubilization in Triton X-100 at 4°C. It is hypothesized that the membrane curvature-dependent lateral distribution of membrane components affects their solubilization. The stomatocytogenic, Triton X-100, cannot effectively solubilize membrane components, especially with regard to the outward membrane curvature.
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26
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Rojas-Aguirre Y, Hernández-Luis F, Mendoza-Martínez C, Sotomayor CP, Aguilar LF, Villena F, Castillo I, Hernández DJ, Suwalsky M. Effects of an antimalarial quinazoline derivative on human erythrocytes and on cell membrane molecular models. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2011; 1818:738-46. [PMID: 22155684 DOI: 10.1016/j.bbamem.2011.11.026] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Revised: 11/21/2011] [Accepted: 11/22/2011] [Indexed: 11/16/2022]
Abstract
Plasmodium, the parasite which causes malaria in humans multiplies in the liver and then infects circulating erythrocytes. Thus, the role of the erythrocyte cell membrane in antimalarial drug activity and resistance has key importance. The effects of the antiplasmodial N(6)-(4-methoxybenzyl)quinazoline-2,4,6-triamine (M4), and its inclusion complex (M4/HPβCD) with 2-hydroxypropyl-β-cyclodextrin (HPβCD) on human erythrocytes and on cell membrane molecular models are herein reported. This work evidences that M4/HPβCD interacts with red cells as follows: a) in scanning electron microscopy (SEM) studies on human erythrocytes induced shape changes at a 10μM concentration; b) in isolated unsealed human erythrocyte membranes (IUM) a concentration as low as 1μM induced sharp DPH fluorescence anisotropy decrease whereas increasing concentrations produced a monotonically decrease of DPH fluorescence lifetime at 37°C; c) X-ray diffraction studies showed that 200μM induced a complete structural perturbation of dimyristoylphosphatidylcholine (DMPC) bilayers whereas no significant effects were detected in dimyristoylphosphatidylethanolamine (DMPE) bilayers, classes of lipids present in the outer and inner monolayers of the human erythrocyte membrane, respectively; d) fluorescence spectroscopy data showed that increasing concentrations of the complex interacted with the deep hydrophobic core of DMPC large unilamellar vesicles (LUV) at 18°C. All these experiments are consistent with the insertion of M4/HPβCD in the outer monolayer of the human erythrocyte membrane; thus, it can be considered a promising and novel antimalarial agent.
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27
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Xu W, Osei-Prempeh G, Lema C, Davis Oldham E, Aguilera RJ, Parkin S, Rankin SE, Knutson BL, Lehmler HJ. Synthesis, thermal properties, and cytotoxicity evaluation of hydrocarbon and fluorocarbon alkyl β-D-xylopyranoside surfactants. Carbohydr Res 2011; 349:12-23. [PMID: 22207000 DOI: 10.1016/j.carres.2011.11.020] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2011] [Revised: 11/17/2011] [Accepted: 11/22/2011] [Indexed: 11/18/2022]
Abstract
Alkyl β-d-xylopyranosides are highly surface active, biodegradable surfactants that can be prepared from hemicelluloses and are of interest for use as pharmaceuticals, detergents, agrochemicals, and personal care products. To gain further insights into their structure-property and structure-activity relationships, the present study synthesized a series of hydrocarbon (-C(6)H(13) to -C(16)H(33)) and fluorocarbon (-(CH(2))(2)C(6)F(13)) alkyl β-d-xylopyranosides in four steps from d-xylose by acylation or benzoylation, bromination, Koenigs-Knorr reaction, and hydrolysis, with the benzoyl protecting group giving better yields compared to the acyl group in the Koenigs-Knorr reaction. All alkyl β-d-xylopyranosides formed thermotropic liquid crystals. The phase transition of the solid crystalline phase to a liquid crystalline phase increased linearly with the length of the hydrophobic tail. The clearing points were near constant for alkyl β-d-xylopyranosides with a hydrophobic tail ⩾8, but occurred at a significantly lower temperature for hexyl β-d-xylopyranoside. Short and long-chain alkyl β-d-xylopyranosides displayed no cytotoxicity at concentration below their aqueous solubility limit. Hydrocarbon and fluorocarbon alkyl β-d-xylopyranosides with intermediate chain length displayed some toxicity at millimolar concentrations due to apoptosis.
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Affiliation(s)
- Wenjin Xu
- Department of Occupational and Environmental Health, The University of Iowa, UI Research Park, 124 IREH, Iowa City, IA 52242, USA
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28
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Abstract
The aim of the study was to determine changes incurred by polyphenolic compounds from selected fruits in the lipid phase of the erythrocyte membrane, in liposomes formed of erythrocyte lipids and phosphatidylcholine liposomes. In particular, the effect of extracts from apple, chokeberry, and strawberry on the red blood cell morphology, on packing order in the lipid hydrophilic phase, on fluidity of the hydrophobic phase, as well as on the temperature of phase transition in DPPC liposomes was studied. In the erythrocyte population, the proportions of echinocytes increased due to incorporation of polyphenolic compounds. Fluorimetry with a laurdan probe indicated increased packing density in the hydrophilic phase of the membrane in presence of polyphenolic extracts, the highest effect being observed for the apple extract. Using the fluorescence probes DPH and TMA-DPH, no effect was noted inside the hydrophobic phase of the membrane, as the lipid bilayer fluidity was not modified. The polyphenolic extracts slightly lowered the phase transition temperature of phosphatidylcholine liposomes. The studies have shown that the phenolic compounds contained in the extracts incorporate into the outer region of the erythrocyte membrane, affecting its shape and lipid packing order, which is reflected in the increasing number of echinocytes. The compounds also penetrate the outer part of the external lipid layer of liposomes formed of natural and DPPC lipids, changing its packing order.
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29
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Erythrocyte morphological states, phases, transitions and trajectories. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2010; 1798:1767-78. [DOI: 10.1016/j.bbamem.2010.05.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2010] [Revised: 04/19/2010] [Accepted: 05/07/2010] [Indexed: 11/20/2022]
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30
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Gurtovenko AA, Anwar J, Vattulainen I. Defect-Mediated Trafficking across Cell Membranes: Insights from in Silico Modeling. Chem Rev 2010; 110:6077-103. [DOI: 10.1021/cr1000783] [Citation(s) in RCA: 158] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Andrey A. Gurtovenko
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoi Prospect 31, V.O., St. Petersburg, 199004 Russia, Computational Laboratory, Institute of Pharmaceutical Innovation, University of Bradford, Bradford, West Yorkshire BD7 1DP, U.K., Department of Physics, Tampere University of Technology, P.O. Box 692, FI-33101 Tampere, Finland, Aalto University, School of Science and Technology, Finland, and MEMPHYS—Center for Biomembrane Physics, University of Southern Denmark, Odense, Denmark
| | - Jamshed Anwar
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoi Prospect 31, V.O., St. Petersburg, 199004 Russia, Computational Laboratory, Institute of Pharmaceutical Innovation, University of Bradford, Bradford, West Yorkshire BD7 1DP, U.K., Department of Physics, Tampere University of Technology, P.O. Box 692, FI-33101 Tampere, Finland, Aalto University, School of Science and Technology, Finland, and MEMPHYS—Center for Biomembrane Physics, University of Southern Denmark, Odense, Denmark
| | - Ilpo Vattulainen
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoi Prospect 31, V.O., St. Petersburg, 199004 Russia, Computational Laboratory, Institute of Pharmaceutical Innovation, University of Bradford, Bradford, West Yorkshire BD7 1DP, U.K., Department of Physics, Tampere University of Technology, P.O. Box 692, FI-33101 Tampere, Finland, Aalto University, School of Science and Technology, Finland, and MEMPHYS—Center for Biomembrane Physics, University of Southern Denmark, Odense, Denmark
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31
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Zaragoza A, Aranda FJ, Espuny MJ, Teruel JA, Marqués A, Manresa A, Ortiz A. Hemolytic activity of a bacterial trehalose lipid biosurfactant produced by Rhodococcus sp.: evidence for a colloid-osmotic mechanism. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:8567-8572. [PMID: 20146489 DOI: 10.1021/la904637k] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A succinoyl trehalose lipid produced by Rhodococcus sp. behaves as a biological surfactant and also displays various interesting biological activities. Trehalose lipid has been shown to have a great tendency to partition into phospholipid membranes; therefore, the characterization of its interaction with biological membranes is of central importance. In this work, human red blood cells have been used as an experimental model. Trehalose lipid causes the swelling of human erythrocytes followed by hemolysis at concentrations well below its critical micellar concentration. Kinetic measurements show that, upon addition of trehalose lipid, K(+) release precedes that of hemoglobin. Osmotic protectants of the appropriate size added to the external medium make it possible to avoid hemolysis. The results indicate that trehalose lipid causes the hemolysis of human erythrocytes by a colloid-osmotic mechanism, most likely by formation of enhanced permeability domains, or "pores" enriched in the biosurfactant, within the erythrocyte membrane. Scanning electron microscopy shows trehalose lipid-induced spherocytosis and echinocytosis of red blood cells, which fits well within the framework of the bilayer-couple hypothesis. The presented results contribute to establishing a molecular basis for the biological properties of this trehalose lipid biosurfactant.
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Affiliation(s)
- Ana Zaragoza
- Departamento de Bioquímica y Biología Molecular-A, Facultad de Veterinaria, Universidad de Murcia, E-30100 Murcia, Spain
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32
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Analysis of radiofrequency energy stored in the altered shapes: Stomatocyte–echinocyte of human erythrocytes. Bioelectrochemistry 2010; 77:158-61. [DOI: 10.1016/j.bioelechem.2009.07.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2008] [Revised: 03/31/2009] [Accepted: 07/07/2009] [Indexed: 11/18/2022]
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33
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Li Y, Zhang J, Zhang B. Atomic force microscopy study on chlorpromazine-induced morphological changes of living HeLa cells In Vitro. SCANNING 2009; 31:259-265. [PMID: 20301192 DOI: 10.1002/sca.20174] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Chlorpromazine (CPZ)-induced morphological changes of living human cervical carcinoma cells were investigated by atomic force microscopy in near physiological condition. The results showed that the cell morphology changed visibly with time in the presence of CPZ (>21 microM). The cell membrane shrank gradually and detached finally from the substrate. After being treated with CPZ for 50 min, the cell volume increased by about 27.6% while its projective area (cell adhered to the substrate) decreased by about 12%. The mechanism was also discussed.
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Affiliation(s)
- Yongjun Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, People's Republic of China
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34
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Mrówczyńska L, Hägerstrand H. Platelet-activating factor interaction with the human erythrocyte membrane. J Biochem Mol Toxicol 2009; 23:345-8. [DOI: 10.1002/jbt.20297] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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35
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Schara K, Janša V, Šuštar V, Dolinar D, Pavlič JI, Lokar M, Kralj-Iglič V, Veranič P, Iglič A. Mechanisms for the formation of membranous nanostructures in cell-to-cell communication. Cell Mol Biol Lett 2009; 14:636-56. [PMID: 19554268 PMCID: PMC6275886 DOI: 10.2478/s11658-009-0018-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2008] [Accepted: 06/18/2009] [Indexed: 12/21/2022] Open
Abstract
Cells interact by exchanging material and information. Two methods of cell-to-cell communication are by means of microvesicles and by means of nanotubes. Both microvesicles and nanotubes derive from the cell membrane and are able to transport the contents of the inner solution. In this review, we describe two physical mechanisms involved in the formation of microvesicles and nanotubes: curvature-mediated lateral redistribution of membrane components with the formation of membrane nanodomains; and plasmamediated attractive forces between membranes. These mechanisms are clinically relevant since they can be affected by drugs. In particular, the underlying mechanism of heparin's role as an anticoagulant and tumor suppressor is the suppression of microvesicluation due to plasma-mediated attractive interaction between membranes.
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Affiliation(s)
- Karin Schara
- Laboratory of Clinical Biophysics, Institute of Biophysics, Faculty of Medicine, University of Ljubljana, Lipičeva 2, SI-1000 Ljubljana, Slovenia
- University Medical Centre Ljubljana, Zaloška 9, SI-1000 Ljubljana, Slovenia
| | - Vid Janša
- Laboratory of Clinical Biophysics, Institute of Biophysics, Faculty of Medicine, University of Ljubljana, Lipičeva 2, SI-1000 Ljubljana, Slovenia
| | - Vid Šuštar
- Laboratory of Clinical Biophysics, Institute of Biophysics, Faculty of Medicine, University of Ljubljana, Lipičeva 2, SI-1000 Ljubljana, Slovenia
| | - Drago Dolinar
- Laboratory of Clinical Biophysics, Institute of Biophysics, Faculty of Medicine, University of Ljubljana, Lipičeva 2, SI-1000 Ljubljana, Slovenia
- University Medical Centre Ljubljana, Zaloška 9, SI-1000 Ljubljana, Slovenia
| | - Janez Ivan Pavlič
- Faculty of Health Studies, University of Ljubljana, Poljanska 26a, SI-1000 Ljubljana, Slovenia
- Laboratory of Physics, Faculty of Electrical Engineering, University of Ljubljana, Tržaška 25, SI-1000 Ljubljana, Slovenia
| | - Maruša Lokar
- Laboratory of Physics, Faculty of Electrical Engineering, University of Ljubljana, Tržaška 25, SI-1000 Ljubljana, Slovenia
| | - Veronika Kralj-Iglič
- Laboratory of Clinical Biophysics, Institute of Biophysics, Faculty of Medicine, University of Ljubljana, Lipičeva 2, SI-1000 Ljubljana, Slovenia
| | - Peter Veranič
- Institute of Cell Biology, Faculty of Medicine, University of Ljubljana, Lipičeva 2, SI-1000 Ljubljana, Slovenia
| | - Aleš Iglič
- Laboratory of Physics, Faculty of Electrical Engineering, University of Ljubljana, Tržaška 25, SI-1000 Ljubljana, Slovenia
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36
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Li X, Turánek J, Knötigová P, Kudlácková H, Masek J, Parkin S, Rankin SE, Knutson BL, Lehmler HJ. Hydrophobic tail length, degree of fluorination and headgroup stereochemistry are determinants of the biocompatibility of (fluorinated) carbohydrate surfactants. Colloids Surf B Biointerfaces 2009; 73:65-74. [PMID: 19481909 DOI: 10.1016/j.colsurfb.2009.04.023] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2009] [Revised: 04/28/2009] [Accepted: 04/28/2009] [Indexed: 11/29/2022]
Abstract
A series of hydrocarbon and fluorocarbon carbohydrate surfactants with different headgroups (i.e., gluco-, galacto- and maltopyranoside) and (fluorinated) alkyl tails (i.e., C7 and C14 to C19) was synthesized to investigate trends in their cytotoxicity and haemolytic activity, and how surfactant-lipid interactions of selected surfactants contribute to these two measures of biocompatibility. All surfactants displayed low cytotoxicity (EC50 = 25 to >250 microM) and low haemolytic activity (EC50 = 0.2 to >3.3 mM), with headgroup structure, tail length and degree of fluorination being important structural determinants for both endpoints. The EC50 values of hydrocarbon and fluorocarbon glucopyranoside surfactants displayed a "cut-off" effect (i.e., a maximum with respect to the chain length). According to steady-state fluorescence anisotropy studies, short chain (C7) surfactants partitioned less readily into model membranes, which explains their low cytotoxicity and haemolytic activity. Interestingly, galactopyranosides were less toxic compared to glucopyranosides with the same hydrophobic tail. Although both surfactant types only differ in the stereochemistry of the 4-OH group, hexadecyl gluco- and galactopyranoside surfactants had similar apparent membrane partition coefficients, but differed in their overall effect on the phase behaviour of DPPC model membranes, as assessed using steady-state fluorescence anisotropy studies. These observations suggest that highly selective surfactant-lipid interactions may be responsible for the differential cytotoxicity and, possible, haemolytic activity of hydrocarbon and fluorocarbon carbohydrate surfactants intended for a variety of pharmaceutical and biomedical applications.
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Affiliation(s)
- Xueshu Li
- Department of Occupational and Environmental Health, University of Iowa, Iowa City, IA 52242, USA
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37
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Gurtovenko AA, Anwar J. Interaction of Ethanol with Biological Membranes: The Formation of Non-bilayer Structures within the Membrane Interior and their Significance. J Phys Chem B 2009; 113:1983-92. [PMID: 19199697 DOI: 10.1021/jp808041z] [Citation(s) in RCA: 124] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andrey A. Gurtovenko
- Computational Biophysics Laboratory, Institute of Pharmaceutical Innovation, University of Bradford, Bradford, West Yorkshire, BD7 1DP, United Kingdom
| | - Jamshed Anwar
- Computational Biophysics Laboratory, Institute of Pharmaceutical Innovation, University of Bradford, Bradford, West Yorkshire, BD7 1DP, United Kingdom
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38
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Taudon N, Margout D, Calas M, Kezutyte T, Vial HJ, Bressolle FMM. A liquid chromatography-mass spectrometry assay for simultaneous determination of two antimalarial thiazolium compounds in human and rat matrices. J Pharm Biomed Anal 2008; 48:1001-5. [PMID: 18678456 DOI: 10.1016/j.jpba.2008.06.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2008] [Revised: 06/23/2008] [Accepted: 06/25/2008] [Indexed: 11/30/2022]
Abstract
A new class of antimalarial drugs targeting phospholipid metabolism of the malarial parasite is now in development. In the strategy of this development, two mono-thiazolium salts, T1 and T2, need to be monitored. A liquid chromatography-mass spectrometry (LC-MS) method has been developed and validated according to FDA guidelines for simultaneous determination of T1 and T2 in plasma, whole blood and red blood cells (RBCs) from human and rat. The sample-pre-treatment procedure involved solid phase extraction after protein precipitation. Chromatography was carried out on a Zorbax eclipse XDB C8 column and mass spectrometric analysis was performed using an Agilent 1,100 quadrupole mass spectrometer working with an electrospray ionization source. LC-MS data were acquired in single ion monitoring mode at m/z 312, 326 and 227 for T1, T2 and the internal standard (T3), respectively. The drug/internal standard peak area ratios were linked via a quadratic relationship to concentrations (human and rat plasma: 2.25-900 microg/l; human blood and rat RBCs: 4.5-900 microg/kg). Precision was below 14.5% for T1 and below 13% for T2. Accuracy was 92.6-111% for T1 and 95.6-108% for T2. Extraction recoveries were >or=85% in plasma and >or=53% in blood and RBCs. For T1 and T2, the lower limits of quantitation were 2.25 microg/l in plasma, and 4.5 microg/kg in whole blood and RBCs. Stability tests under various conditions were also investigated. This highly specific and sensitive method was useful to analyse samples from pharmacokinetic studies carried out in rat and would also be useful in clinical trials at a later stage.
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Affiliation(s)
- N Taudon
- Clinical Pharmacokinetic Laboratory, Faculty of Pharmacy, 15 Avenue Charles Flahault, University Montpellier I, 34093 Montpellier Cedex 5, France
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39
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Gurtovenko AA, Onike OI, Anwar J. Chemically induced phospholipid translocation across biological membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:9656-9660. [PMID: 18680319 DOI: 10.1021/la801431f] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Chemical means of manipulating the distribution of lipids across biological membranes is of considerable interest for many biomedical applications as a characteristic lipid distribution is vital for numerous cellular functions. Here we employ atomic-scale molecular simulations to shed light on the ability of certain amphiphilic compounds to promote lipid translocation (flip-flops) across membranes. We show that chemically induced lipid flip-flops are most likely pore-mediated: the actual flip-flop event is a very fast process (time scales of tens of nanoseconds) once a transient water defect has been induced by the amphiphilic chemical (dimethylsulfoxide in this instance). Our findings are consistent with available experimental observations and further emphasize the importance of transient membrane defects for chemical control of lipid distribution across cell membranes.
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Affiliation(s)
- Andrey A Gurtovenko
- Computational Biophysics Laboratory, Institute of Pharmaceutical Innovation, University of Bradford, Bradford, BD7 1DP, U.K
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40
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Wróbel A. Effects of charged amphiphiles in depolarising solutions on potassium efflux and the osmotic fragility of human erythrocytes. Bioelectrochemistry 2008; 73:117-22. [DOI: 10.1016/j.bioelechem.2008.04.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2007] [Revised: 03/18/2008] [Accepted: 04/04/2008] [Indexed: 11/28/2022]
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41
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Muñoz San Martín S, Sebastián JL, Sancho M, Alvarez G. Modeling normal and altered human erythrocyte shapes by a new parametric equation: Application to the calculation of induced transmembrane potentials. Bioelectromagnetics 2006; 27:521-7. [PMID: 16715527 DOI: 10.1002/bem.20234] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We present simple parametric equations in terms of Jacobi elliptic functions that provide a realistic model of abnormal variations in size which maintain the biconcave shape of a normal erythrocyte (anisocytosis) and abnormal variations in shape which maintain the original volume of the erythrocyte (poikilocytosis), as well as continuous deformations from the normal to the altered shapes. We illustrate our results with parameterizations of microcytes, macrocytes, and stomatocytes, and we apply these parameterizations to the numerical calculation of the induced transmembrane voltage in microcytes, macrocytes, and stomatocytes exposed to an external electromagnetic field of 1800 MHz.
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Affiliation(s)
- S Muñoz San Martín
- Departamento de Física Aplicada III, Facultad de Ciencias Físicas, Universidad Complutense, Madrid, Spain.
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42
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Ziegler HL, Hansen HS, Staerk D, Christensen SB, Hägerstrand H, Jaroszewski JW. The antiparasitic compound licochalcone a is a potent echinocytogenic agent that modifies the erythrocyte membrane in the concentration range where antiplasmodial activity is observed. Antimicrob Agents Chemother 2004; 48:4067-71. [PMID: 15388483 PMCID: PMC521868 DOI: 10.1128/aac.48.10.4067-4071.2004] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The well-known antiparasitic compound licochalcone A is a potent membrane-active agent that transforms normal erythrocytes into echinocytes in parallel with the inhibition of growth of Plasmodium falciparum cultures, the in vitro antiplasmodial effect apparently being an indirect effect on the host cell. In vitro experiments with synchronous cultures demonstrate that inhibition of invasion is the principal mechanism of growth inhibition. The erythrocyte membrane-modifying effect was also transiently observed in vivo in mice after intravenous administration.
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Affiliation(s)
- Hanne L Ziegler
- Department of Medicinal Chemistry, The Danish University of Pharmaceutical Sciences, Universitetsparken 2, DK-2100 Copenhagen, Denmark
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43
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Baba T, Terada N, Fujii Y, Ohno N, Ohno S, Sato SB. Ultrastructural study of echinocytes induced by poly (ethylene glycol)-cholesterol. Histochem Cell Biol 2004; 122:587-92. [PMID: 15551152 DOI: 10.1007/s00418-004-0723-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/06/2004] [Indexed: 11/27/2022]
Abstract
Poly (ethylene glycol)-cholesterol (PEG-Chol) consists of a hydrophilic PEG and hydrophobic cholesterol moiety. When PEG-Chol was applied to erythrocytes, the reagent quantitatively induced protrusions by exclusively distributing in the outer monolayer of the membrane. This kind of response has been regarded as a general response that reduces the stress of expansion of the outer monolayer. However, the relationship between the membrane architecture and the distribution of such molecules is unknown. In this study, we examined the distribution of tagged PEG-Chol along the shape change pathway. The echinocytic shape was initiated by the initial formation of bumps on the rim of the discoid, which subsequently elongated as protrusions. These protrusions contained aggregates of granular structures, which appeared to accommodate the increase in the outer monolayer area. At higher concentrations, PEG-Chol further induced sphero-echinocytosis that resulted in numerous branched protrusion processes. We found that PEG-Chol was exclusively distributed in these protrusions and, in particular, accumulated at the tips. These results suggested that externally intercalated PEG-Chol was sequestrated from erythrocytes as membrane protrusions through an as-yet-unknown mechanism.
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Affiliation(s)
- Takeshi Baba
- Department of Anatomy, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Tamaho, 409-3898 Yamanashi, Japan.
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44
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Wong P. A hypothesis of the disc-sphere transformation of the erythrocytes between glass surfaces and of related observations. J Theor Biol 2004; 233:127-35. [PMID: 15615626 DOI: 10.1016/j.jtbi.2004.09.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2004] [Revised: 09/07/2004] [Accepted: 09/22/2004] [Indexed: 11/17/2022]
Abstract
Erythrocytes suspended at a low hematocrit in a non-buffered isotonic saline change from biconcave discs to spheres between glass surfaces of a slide and of a coverslip with the echinocyte as an intermediate. A pH increase is a major factor responsible for this disc-sphere transformation or glass effect. It is also observed between surfaces made of various polymers and of mica provided that the distance between them is controlled (0.1 mm). The glass effect is antagonized by serum, plasma, serum albumin, ammonium salts and CO2. It is not observed above a 1-2% hematocrit, but is enhanced by gamma-globulins. The sites of reappearance of the spicules are the same and the order of their disappearance is the inverse of the order of their reappearance during the repetitive cycle of the disc-sphere transformation and reversal when a small glass rod is alternatively approached near a site on the erythrocyte surface and withdrawn. A mechanism of erythrocyte shape control has been previously hypothesized in which Band 3 (AE1), the anion exchange protein, plays a central role. Specifically, decrease and increase of the ratio of its outward-facing conformation (Band 3o) and inward-facing conformation (Band 3i) contract and relax the membrane skeleton, promoting the echinocytosis and stomatocytosis, respectively. The Band 3o/Band 3i equilibrium ratio is determined by the Donnan equilibrium ratio of Cl-, HCO3- and H+ (r=Cl(i)-/Cl(o)-=HCO3i-/HCO3o-=Ho+/Hi+), increasing with it. The mechanism could explain by a change of the Donnan ratio the above observations with the assumptions that polymers are permeable to CO2 and that an unstirred layer slows the propagation of the change occurring at the site of approach of the glass rod to peripheral sites. The presence of HCO3- in serum or plasma may be the basis for the absence of the glass effect in these fluids.
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Affiliation(s)
- Pierre Wong
- Department of Oncology, McGill University, 546 Pine Avenue West, Montreal, Quebec, Canada H2W 1S6.
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45
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Hägerstrand H, Kralj-Iglic V, Fosnaric M, Bobrowska-Hägerstrand M, Wróbel A, Mrówczyńska L, Söderström T, Iglic A. Endovesicle formation and membrane perturbation induced by polyoxyethyleneglycolalkylethers in human erythrocytes. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2004; 1665:191-200. [PMID: 15471585 DOI: 10.1016/j.bbamem.2004.08.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2003] [Revised: 08/19/2004] [Accepted: 08/26/2004] [Indexed: 11/20/2022]
Abstract
Polyoxyethyleneglycolalkylether (CmEn, m=12, n=8) can induce a large torocyte-like endovesicle in human erythrocytes. The present study aimed to examine how variations in the molecular structure of CmEn (m=10,12,14,16,18; n=1-10,23) affect the occurrence of torocyte endovesicles. Our results show that torocytes occur most frequently when m=12,14 and n=8,9. At this molecular configuration the detergents induce inward membrane bending (stomatocytic S1-S2 shapes) resulting in the formation of a large membrane invagination. These detergents have a strong membrane perturbing, i.e., haemolytic, effect. Theoretical calculations indicate that a torocyte-shaped inside-out membrane vesicle can be created from a large membrane invagination due to the impact of laterally mobile anisotropic membrane inclusions. Such inclusions may be detergent-membrane component complexes or unanchored integral membrane proteins. It is shown that a nonhomogeneous lateral distribution of anisotropic membrane inclusions may stabilise the torocyte endovesicle shape, characterised by having opposite membranes in the thin central region of the vesicles separated by a certain distance. Tubular, conical or inverted conical isotropic inclusions cannot do so.
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Affiliation(s)
- Henry Hägerstrand
- Department of Biology, Abo Akademi University, Biocity, FIN-20520, Abo/Turku, Finland.
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46
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Ziegler HL, Franzyk H, Sairafianpour M, Tabatabai M, Tehrani MD, Bagherzadeh K, Hägerstrand H, Staerk D, Jaroszewski JW. Erythrocyte membrane modifying agents and the inhibition of Plasmodium falciparum growth: structure-activity relationships for betulinic acid analogues. Bioorg Med Chem 2004; 12:119-27. [PMID: 14697777 DOI: 10.1016/j.bmc.2003.10.010] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The natural triterpene betulinic acid and its analogues (betulinic aldehyde, lupeol, betulin, methyl betulinate and betulinic acid amide) caused concentration-dependent alterations of erythrocyte membrane shape towards stomatocytes or echinocytes according to their hydrogen bonding properties. Thus, the analogues with a functional group having a capacity of donating a hydrogen bond (COOH, CH(2)OH, CONH(2)) caused formation of echinocytes, whereas those lacking this ability (CH(3), CHO, COOCH(3)) induced formation of stomatocytes. Both kinds of erythrocyte alterations were prohibitive with respect to Plasmodium falciparum invasion and growth; all compounds were inhibitory with IC(50) values in the range 7-28 microM, and the growth inhibition correlated well with the extent of membrane curvature changes assessed by transmission electron microscopy. Erythrocytes pre-loaded with betulinic acid or its analogues and extensively washed in order to remove excess of the chemicals could not serve as hosts for P. falciparum parasites. Betulinic acid and congeners can be responsible for in vitro antiplasmodial activity of plant extracts, as shown for Zataria multiflora Boiss. (Labiatae) and Zizyphus vulgaris Lam. (Rhamnaceae). The activity is evidently due to the incorporation of the compounds into the lipid bilayer of erythrocytes, and may be caused by modifications of cholesterol-rich membrane rafts, recently shown to play an important role in parasite vacuolization. The established link between erythrocyte membrane modifications and antiplasmodial activity may provide a novel target for potential antimalarial drugs.
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Affiliation(s)
- Hanne L Ziegler
- Department of Medicinal Chemistry, The Danish University of Pharmaceutical Sciences, Universitetsparken 2, DK-2100, Copenhagen, Denmark
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47
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Wesołowska O, Hendrich AB, Motohashi N, Kawase M, Dobryszycki P, Ozyhar A, Michalak K. Presence of anionic phospholipids rules the membrane localization of phenothiazine type multidrug resistance modulator. Biophys Chem 2004; 109:399-412. [PMID: 15110937 DOI: 10.1016/j.bpc.2003.11.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2003] [Revised: 11/17/2003] [Accepted: 11/20/2003] [Indexed: 11/18/2022]
Abstract
Substances able to modulate multidrug resistance (MDR), including antipsychotic phenothiazine derivatives, are mainly cationic amphiphiles. The molecular mechanism of their action can involve interactions with transporter proteins as well as with membrane lipids. The interactions between anionic phospholipids and MDR modulators can be crucial for their action. In present work we study interactions of 2-trifluoromethyl-10-(4-[methanesulfonylamid]buthyl)-phenothiazine (FPhMS) with neutral (PC) and anionic lipids (PG and PS). Using microcalorimetry, steady-state and time-resolved fluorescence spectroscopy we show that FPhMS interacts with all lipids studied and drug location in membrane depends on lipid type. The electrostatic attraction between drug and lipid headgroups presumably keeps phenothiazine derivative molecules closer to surface of negatively charged membranes with respect to neutral ones. FPhMS effects on bilayer properties are not proportional to phosphatidylserine content in lipid mixtures. Behavior of equimolar PC:PS mixtures is similar to pure PS bilayers, while 2:1 or 1:2 (mole:mole) PC:PS mixtures resemble pure PC ones.
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Affiliation(s)
- Olga Wesołowska
- Department of Biophysics, Wrocław Medical University, ul. Chałubinskiego 10, 50-368 Wrocław, Poland.
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48
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Tachev KD, Danov KD, Kralchevsky PA. On the mechanism of stomatocyte–echinocyte transformations of red blood cells: experiment and theoretical model. Colloids Surf B Biointerfaces 2004; 34:123-40. [PMID: 15261082 DOI: 10.1016/j.colsurfb.2003.12.011] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2003] [Indexed: 10/26/2022]
Abstract
This study represents an attempt to achieve a better understanding of the stomatocyte-echinocyte transition in the shape of red blood cells. We determined experimentally the index of cell shape at various ionic strengths and osmolarities for native and trypsin-treated human erythrocytes. For every given composition of the outer phase, we calculated the ionic strength in the cells and the transmembrane electric potential using a known theoretical model. Next, we described theoretically the electric double layers formed on both sides of the cell membrane, and derived expressions for the tensions of the two membrane leaflets. Taking into account that the cell-shape index depends on the tension difference between the two leaflets, we fitted the experimental data with the constructed physicochemical model. The model, which agrees well with the experiment, indicates that the tension difference between the two leaflets is governed by the different adsorptions of counterions at the two membrane surfaces, rather than by the direct contribution of the electric double layers to the membrane tension. Thus, with the rise of the ionic strength, the counterion adsorption increases stronger at the outer leaflet, whose stretching surface pressure becomes greater, and whose area expands relative to that of the inner leaflet. Hence, there is no contradiction between the bilayer-couple hypothesis and the electric double layer theory, if the latter is upgraded to account for the effect of counterion-adsorption on the membrane tension. The developed quantitative model can be applied to predict the shape index of cells upon a stomatocyte-discocyte-echinocyte transformation at varying composition of the outer medium.
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Affiliation(s)
- K D Tachev
- Department of Functional Biology, Faculty of Natural Sciences, University of Shumen, 9712 Shumen, Bulgaria
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49
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Kitagawa S, Kasamaki M, Hyodo M. Cationic Vesicles Consisting of 1,2-Dioleoyl-3-Trimethylammonium Propane (DOTAP) and Phosphatidylcholines and Their Interaction with Erythrocyte Membrane. Chem Pharm Bull (Tokyo) 2004; 52:451-3. [PMID: 15056963 DOI: 10.1248/cpb.52.451] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We studied the formation and stability of vesicles consisting of 1,2-dioleoyl-3-trimethylammonium propane (DOTAP) and phosphatidylcholines by electron spin resonance (ESR) analysis and observation of their hemolytic activities. In contrast with previous findings on dimethyldialkylammoniums, DOTAP formed vesicles at 37 degrees C with phosphatidylcholines containing either saturated acyl chains such as dimyristoylphosphatidylcholine (DMPC) or unsaturated acyl chains such as dilinoleoylphosphatidylcholine (DLPC). Phosphatidylcholines made the bilayer more rigid and significantly reduced the hemolytic activity of DOTAP. In the presence of equimolar concentration of DOTAP and phosphatidylcholines, formation of tightly aggregated structures of several erythrocytes was observed, as previously reported for the vesicles containing dimethyldipalmitylammonium. These findings indicate that DOTAP vesicles were stabilized by phosphatidylcholines with either saturated acyl chains or unsaturated acyl chains, and the interaction with the lipid bilayer of biological membranes as cationic vesicles became prominent with minimal membrane damage by DOTAP monomers.
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Affiliation(s)
- Shuji Kitagawa
- Faculty of Pharmaceutical Sciences, Niigata University of Pharmacy and Applied Life Sciences, Japan.
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50
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Hendrich AB, Wesołowska O, Motohashi N, Molnár J, Michalak K. New phenothiazine-type multidrug resistance modifiers: anti-MDR activity versus membrane perturbing potency. Biochem Biophys Res Commun 2003; 304:260-5. [PMID: 12711308 DOI: 10.1016/s0006-291x(03)00580-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The phenothiazine multidrug resistance (MDR) modulators are chemically diversified but share the common feature to be hydrophobic cationic molecules. Molecular mechanisms of their action may involve interactions with either P-glycoprotein or membrane lipid matrix. In the present work we study the anti-MDR and biophysical membrane effects of new phenothiazine derivatives differing in the type of group substituting phenothiazine ring at position 2 (H-, Cl-, CF(3)-) and in the side chain group (NHCO(2)CH(3) or NHSO(2)CH(3)). Within each phenothiazine subset we found that anti-MDR activity (determined by P-glycoprotein inhibition assessed by flow cytometry) correlates with the theoretically calculated hydrophobicity value (logP) and experimental parameters (determined by calorimetry and fluorescence spectroscopy) of lipid bilayers. It is concluded that the biological and biophysical activity of phenothiazine derivatives depends more on the type of ring substitution than on the nature of the side chain group.
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Affiliation(s)
- Andrzej B Hendrich
- Department of Biophysics, Wrocław Medical University, ul. Chałubińskiego 10, 50-368, Wrocław, Poland.
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