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Hua D, Harizaj A, Wels M, Brans T, Stremersch S, De Keersmaecker H, Bolea-Fernandez E, Vanhaecke F, Roels D, Braeckmans K, Xiong R, Huang C, De Smedt SC, Sauvage F. Bubble Forming Films for Spatial Selective Cell Killing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2008379. [PMID: 34050986 DOI: 10.1002/adma.202008379] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 03/22/2021] [Indexed: 06/12/2023]
Abstract
Photodynamic and photothermal cell killing at the surface of tissues finds applications in medicine. However, a lack of control over heat dissipation following a treatment with light might damage surrounding tissues. A new strategy to kill cells at the surface of tissues is reported. Polymeric films are designed in which iron oxide nanoparticles are embedded as photosensitizers. Irradiation of the films with pulsed laser light generates water vapor bubbles at the surface of the films. It is found that "bubble-films" can kill cells in close proximity to the films due to mechanical forces which arise when the bubbles collapse. Local irradiation of bubble-films allows for spatial selective single cell killing. As nanosurgery becomes attractive in ophthalmology to remove superficial tumors, bubble-films are applied on the cornea and it is found that irradiation of the bubble-films allows spatial and selective killing of corneal cells. As i) the photosensitizer is embedded in the films, which reduces its uptake by cells and spreading into tissues and ii) the bubble-films can be removed from the tissue after laser treatment, while iii) a low laser fluence is sufficient to generate vapor bubbles, it is foreseen that bubble-films might become promising for safe resection of superficial tumors.
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Affiliation(s)
- Dawei Hua
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent), College of Chemical Engineering, Nanjing Forestry University (NFU), Nanjing, 210037, P. R. China
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, 9000, Belgium
| | - Aranit Harizaj
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, 9000, Belgium
| | - Mike Wels
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, 9000, Belgium
| | - Toon Brans
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, 9000, Belgium
| | - Stephan Stremersch
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, 9000, Belgium
| | - Herlinde De Keersmaecker
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, 9000, Belgium
| | - Eduardo Bolea-Fernandez
- Department of Chemistry, Ghent University, Atomic & Mass Spectrometry - A&MS research group, Campus Sterre, Krijgslaan 281-S12, Ghent, 9000, Belgium
| | - Frank Vanhaecke
- Department of Chemistry, Ghent University, Atomic & Mass Spectrometry - A&MS research group, Campus Sterre, Krijgslaan 281-S12, Ghent, 9000, Belgium
| | - Dimitri Roels
- Department of Ophthalmology, Ghent University Hospital, Corneel Heymanslaan 10, Ghent, 9000, Belgium
| | - Kevin Braeckmans
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, 9000, Belgium
| | - Ranhua Xiong
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent), College of Chemical Engineering, Nanjing Forestry University (NFU), Nanjing, 210037, P. R. China
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, 9000, Belgium
| | - Chaobo Huang
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent), College of Chemical Engineering, Nanjing Forestry University (NFU), Nanjing, 210037, P. R. China
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, 9000, Belgium
| | - Stefaan C De Smedt
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent), College of Chemical Engineering, Nanjing Forestry University (NFU), Nanjing, 210037, P. R. China
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, 9000, Belgium
| | - Félix Sauvage
- Laboratory of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences, Ghent University, Ghent, 9000, Belgium
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Kaladharan K, Kumar A, Gupta P, Illath K, Santra TS, Tseng FG. Microfluidic Based Physical Approaches towards Single-Cell Intracellular Delivery and Analysis. MICROMACHINES 2021; 12:631. [PMID: 34071732 PMCID: PMC8228766 DOI: 10.3390/mi12060631] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 05/24/2021] [Accepted: 05/25/2021] [Indexed: 12/20/2022]
Abstract
The ability to deliver foreign molecules into a single living cell with high transfection efficiency and high cell viability is of great interest in cell biology for applications in therapeutic development, diagnostics, and drug delivery towards personalized medicine. Various physical delivery methods have long demonstrated the ability to deliver cargo molecules directly to the cytoplasm or nucleus and the mechanisms underlying most of the approaches have been extensively investigated. However, most of these techniques are bulk approaches that are cell-specific and have low throughput delivery. In comparison to bulk measurements, single-cell measurement technologies can provide a better understanding of the interactions among molecules, organelles, cells, and the microenvironment, which can aid in the development of therapeutics and diagnostic tools. To elucidate distinct responses during cell genetic modification, methods to achieve transfection at the single-cell level are of great interest. In recent years, single-cell technologies have become increasingly robust and accessible, although limitations exist. This review article aims to cover various microfluidic-based physical methods for single-cell intracellular delivery such as electroporation, mechanoporation, microinjection, sonoporation, optoporation, magnetoporation, and thermoporation and their analysis. The mechanisms of various physical methods, their applications, limitations, and prospects are also elaborated.
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Affiliation(s)
- Kiran Kaladharan
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu 300044, Taiwan; (K.K.); (A.K.)
| | - Ashish Kumar
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu 300044, Taiwan; (K.K.); (A.K.)
| | - Pallavi Gupta
- Department of Engineering Design, Indian Institute of Technology Madras, Chennai 600036, India; (P.G.); (K.I.)
| | - Kavitha Illath
- Department of Engineering Design, Indian Institute of Technology Madras, Chennai 600036, India; (P.G.); (K.I.)
| | - Tuhin Subhra Santra
- Department of Engineering Design, Indian Institute of Technology Madras, Chennai 600036, India; (P.G.); (K.I.)
| | - Fan-Gang Tseng
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu 300044, Taiwan; (K.K.); (A.K.)
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Shao J, Cao S, Williams DS, Abdelmohsen LKEA, van Hest JCM. Photoactivated Polymersome Nanomotors: Traversing Biological Barriers. Angew Chem Int Ed Engl 2020; 59:16918-16925. [PMID: 32533754 PMCID: PMC7540338 DOI: 10.1002/anie.202003748] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Indexed: 01/05/2023]
Abstract
Synthetic nanomotors are appealing delivery vehicles for the dynamic transport of functional cargo. Their translation toward biological applications is limited owing to the use of non-degradable components. Furthermore, size has been an impediment owing to the importance of achieving nanoscale (ca. 100 nm) dimensions, as opposed to microscale examples that are prevalent. Herein, we present a hybrid nanomotor that can be activated by near-infrared (NIR)-irradiation for the triggered delivery of internal cargo and facilitated transport of external agents to the cell. Utilizing biodegradable poly(ethylene glycol)-b-poly(d,l-lactide) (PEG-PDLLA) block copolymers, with the two blocks connected via a pH sensitive imine bond, we generate nanoscopic polymersomes that are then modified with a hemispherical gold nanocoat. This Janus morphology allows such hybrid polymersomes to undergoing photothermal motility in response to thermal gradients generated by plasmonic absorbance of NIR irradiation, with velocities ranging up to 6.2±1.10 μm s-1 . These polymersome nanomotors (PNMs) are capable of traversing cellular membranes allowing intracellular delivery of molecular and macromolecular cargo.
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Affiliation(s)
- Jingxin Shao
- Bio-Organic ChemistryInstitute of Complex Molecular SystemsDepartment of Biomedical EngineeringEindhoven University of Technology, Helix (STO 3.41)P. O. Box 5135600 MBEindhovenThe Netherlands
| | - Shoupeng Cao
- Bio-Organic ChemistryInstitute of Complex Molecular SystemsDepartment of Biomedical EngineeringEindhoven University of Technology, Helix (STO 3.41)P. O. Box 5135600 MBEindhovenThe Netherlands
| | - David S. Williams
- Department of ChemistryCollege of ScienceSwansea UniversitySwanseaSA2 8PPUK
| | - Loai K. E. A. Abdelmohsen
- Bio-Organic ChemistryInstitute of Complex Molecular SystemsDepartment of Biomedical EngineeringEindhoven University of Technology, Helix (STO 3.41)P. O. Box 5135600 MBEindhovenThe Netherlands
| | - Jan C. M. van Hest
- Bio-Organic ChemistryInstitute of Complex Molecular SystemsDepartment of Biomedical EngineeringEindhoven University of Technology, Helix (STO 3.41)P. O. Box 5135600 MBEindhovenThe Netherlands
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Shao J, Cao S, Williams DS, Abdelmohsen LKEA, Hest JCM. Photoactivated Polymersome Nanomotors: Traversing Biological Barriers. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003748] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jingxin Shao
- Bio-Organic Chemistry Institute of Complex Molecular Systems Department of Biomedical Engineering Eindhoven University of Technology, Helix (STO 3.41) P. O. Box 513 5600 MB Eindhoven The Netherlands
| | - Shoupeng Cao
- Bio-Organic Chemistry Institute of Complex Molecular Systems Department of Biomedical Engineering Eindhoven University of Technology, Helix (STO 3.41) P. O. Box 513 5600 MB Eindhoven The Netherlands
| | - David S. Williams
- Department of Chemistry College of Science Swansea University Swansea SA2 8PP UK
| | - Loai K. E. A. Abdelmohsen
- Bio-Organic Chemistry Institute of Complex Molecular Systems Department of Biomedical Engineering Eindhoven University of Technology, Helix (STO 3.41) P. O. Box 513 5600 MB Eindhoven The Netherlands
| | - Jan C. M. Hest
- Bio-Organic Chemistry Institute of Complex Molecular Systems Department of Biomedical Engineering Eindhoven University of Technology, Helix (STO 3.41) P. O. Box 513 5600 MB Eindhoven The Netherlands
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Rotenberg MY, Elbaz B, Nair V, Schaumann EN, Yamamoto N, Sarma N, Matino L, Santoro F, Tian B. Silicon Nanowires for Intracellular Optical Interrogation with Subcellular Resolution. NANO LETTERS 2020; 20:1226-1232. [PMID: 31904975 PMCID: PMC7513588 DOI: 10.1021/acs.nanolett.9b04624] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Current techniques for intracellular electrical interrogation are limited by substrate-bound devices, technically demanding methods, or insufficient spatial resolution. In this work, we use freestanding silicon nanowires to achieve photoelectric stimulation in myofibroblasts with subcellular resolution. We demonstrate that myofibroblasts spontaneously internalize silicon nanowires and subsequently remain viable and capable of mitosis. We then show that stimulation of silicon nanowires at separate intracellular locations results in local calcium fluxes in subcellular regions. Moreover, nanowire-myofibroblast hybrids electrically couple with cardiomyocytes in coculture, and photostimulation of the nanowires increases the spontaneous activation rate in coupled cardiomyocytes. Finally, we demonstrate that this methodology can be extended to the interrogation of signaling in neuron-glia interactions using nanowire-containing oligodendrocytes.
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Affiliation(s)
| | | | | | | | | | | | - Laura Matino
- Tissue Electronics, Center for Advanced Biomaterials for Healthcare , Istituto Italiano di Tecnologia , 80125 Naples , Italy
- Department of Chemical Materials and Industrial Production Engineering , University of Naples Federico II , 80125 Naples , Italy
| | - Francesca Santoro
- Tissue Electronics, Center for Advanced Biomaterials for Healthcare , Istituto Italiano di Tecnologia , 80125 Naples , Italy
- Department of Chemical Materials and Industrial Production Engineering , University of Naples Federico II , 80125 Naples , Italy
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6
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Stewart MP, Langer R, Jensen KF. Intracellular Delivery by Membrane Disruption: Mechanisms, Strategies, and Concepts. Chem Rev 2018; 118:7409-7531. [PMID: 30052023 PMCID: PMC6763210 DOI: 10.1021/acs.chemrev.7b00678] [Citation(s) in RCA: 406] [Impact Index Per Article: 67.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Intracellular delivery is a key step in biological research and has enabled decades of biomedical discoveries. It is also becoming increasingly important in industrial and medical applications ranging from biomanufacture to cell-based therapies. Here, we review techniques for membrane disruption-based intracellular delivery from 1911 until the present. These methods achieve rapid, direct, and universal delivery of almost any cargo molecule or material that can be dispersed in solution. We start by covering the motivations for intracellular delivery and the challenges associated with the different cargo types-small molecules, proteins/peptides, nucleic acids, synthetic nanomaterials, and large cargo. The review then presents a broad comparison of delivery strategies followed by an analysis of membrane disruption mechanisms and the biology of the cell response. We cover mechanical, electrical, thermal, optical, and chemical strategies of membrane disruption with a particular emphasis on their applications and challenges to implementation. Throughout, we highlight specific mechanisms of membrane disruption and suggest areas in need of further experimentation. We hope the concepts discussed in our review inspire scientists and engineers with further ideas to improve intracellular delivery.
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Affiliation(s)
- Martin P. Stewart
- Department of Chemical Engineering, Massachusetts Institute
of Technology, Cambridge, USA
- The Koch Institute for Integrative Cancer Research,
Massachusetts Institute of Technology, Cambridge, USA
| | - Robert Langer
- Department of Chemical Engineering, Massachusetts Institute
of Technology, Cambridge, USA
- The Koch Institute for Integrative Cancer Research,
Massachusetts Institute of Technology, Cambridge, USA
| | - Klavs F. Jensen
- Department of Chemical Engineering, Massachusetts Institute
of Technology, Cambridge, USA
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7
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Abstract
Beyond the more common chemical delivery strategies, several physical techniques are used to open the lipid bilayers of cellular membranes. These include using electric and magnetic fields, temperature, ultrasound or light to introduce compounds into cells, to release molecular species from cells or to selectively induce programmed cell death (apoptosis) or uncontrolled cell death (necrosis). More recently, molecular motors and switches that can change their conformation in a controlled manner in response to external stimuli have been used to produce mechanical actions on tissue for biomedical applications. Here we show that molecular machines can drill through cellular bilayers using their molecular-scale actuation, specifically nanomechanical action. Upon physical adsorption of the molecular motors onto lipid bilayers and subsequent activation of the motors using ultraviolet light, holes are drilled in the cell membranes. We designed molecular motors and complementary experimental protocols that use nanomechanical action to induce the diffusion of chemical species out of synthetic vesicles, to enhance the diffusion of traceable molecular machines into and within live cells, to induce necrosis and to introduce chemical species into live cells. We also show that, by using molecular machines that bear short peptide addends, nanomechanical action can selectively target specific cell-surface recognition sites. Beyond the in vitro applications demonstrated here, we expect that molecular machines could also be used in vivo, especially as their design progresses to allow two-photon, near-infrared and radio-frequency activation.
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8
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Patil S, Raj AT. Commentary: Molecular Machines Open Cell Membranes. Front Oncol 2017; 7:277. [PMID: 29209591 PMCID: PMC5702477 DOI: 10.3389/fonc.2017.00277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 11/06/2017] [Indexed: 11/13/2022] Open
Affiliation(s)
- Shankargouda Patil
- Maxillofacial Surgery and Diagnostic Science, Division of Oral Pathology, College of Dentistry, Jazan University, Jizan, Saudi Arabia
| | - A Thirumal Raj
- Oral Pathology and Microbiology, Sri Venkateswara Dental College, Chennai, Tamil Nadu, India
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Lakshmanan S, Gupta GK, Avci P, Chandran R, Sadasivam M, Jorge AES, Hamblin MR. Physical energy for drug delivery; poration, concentration and activation. Adv Drug Deliv Rev 2014; 71:98-114. [PMID: 23751778 DOI: 10.1016/j.addr.2013.05.010] [Citation(s) in RCA: 110] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Revised: 05/15/2013] [Accepted: 05/31/2013] [Indexed: 12/11/2022]
Abstract
Techniques for controlling the rate and duration of drug delivery, while targeting specific locations of the body for treatment, to deliver the cargo (drugs or DNA) to particular parts of the body by what are becoming called "smart drug carriers" have gained increased attention during recent years. Using such smart carriers, researchers have also been investigating a number of physical energy forces including: magnetic fields, ultrasound, electric fields, temperature gradients, photoactivation or photorelease mechanisms, and mechanical forces to enhance drug delivery within the targeted cells or tissues and also to activate the drugs using a similar or a different type of external trigger. This review aims to cover a number of such physical energy modalities. Various advanced techniques such as magnetoporation, electroporation, iontophoresis, sonoporation/mechnoporation, phonophoresis, optoporation and thermoporation will be covered in the review. Special emphasis will be placed on photodynamic therapy owing to the experience of the authors' laboratory in this area, but other types of drug cargo and DNA vectors will also be covered. Photothermal therapy and theranostics will also be discussed.
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Ivanov IT, Zheleva A, Zlatanov I. Anion exchanger and the resistance against thermal haemolysis. Int J Hyperthermia 2011; 27:286-96. [PMID: 21501030 DOI: 10.3109/02656736.2011.554064] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
4,4'-Diiso-thiocyanato stilbene-2,2'-disulphonic acid (DIDS) is a membrane-impermeable, highly specific covalent inhibitor and powerful thermal stabiliser of the anion exchanger (AE1), the major integral protein of erythrocyte membrane (EM). Suspensions of control and DIDS-treated (15 µM, pH 8.2) human erythrocytes were heated from 20° to 70°C using various but constant heating rates (1-8°C/min). The cellular electrolyte leakage exhibited a sigmoidal response to temperature as detected by conductometry. The critical midpoint temperature of leakage, T(mo), extrapolated to low heating rate (0.5°C/min) was used as a measure for EM thermostability. T(mo) was greater for DIDS-treated erythrocytes, 63.2° ± 0.3°C, than for intact erythrocytes, 60.7° ± 0.2°C. The time, t(1/2), for 50% haemolysis of erythrocytes, exposed to 53°C was used as a measure for the resistance of erythrocytes against thermal haemolysis. The t(1/2) was also greater for DIDS-treated erythrocytes, 63 ± 3 min, than for intact erythrocytes, 38 ± 2 min. The fluorescent label N-(3-pyrenyl)maleimide and EPR spin label 3-maleimido-proxyl, covalently bound to sulphydryl groups of major EM proteins, were used to monitor the changes in molecular motions during transient heating. Both labels reported an intensification of the motional dynamics at the denaturation temperatures of spectrin (50°C) and AE1 (67°C), and, surprisingly, immobilisation of a major EM protein, presumably the AE1, at T(mo). The above results are interpreted in favour of the possible involvement of a predenaturational rearrangement of AE1 copies in the EM thermostability and the resistance against thermal haemolysis.
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Affiliation(s)
- I T Ivanov
- Department of Physics, Biophysics, Roentgenology and Radiology, Medical Faculty, Thracian University, 11 Armeyska str., Stara Zagora, Bulgaria.
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Ivanov IT. Allometric dependence of the life span of mammal erythrocytes on thermal stability and sphingomyelin content of plasma membranes. Comp Biochem Physiol A Mol Integr Physiol 2007; 147:876-84. [PMID: 17398129 DOI: 10.1016/j.cbpa.2007.02.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2006] [Revised: 02/09/2007] [Accepted: 02/13/2007] [Indexed: 11/26/2022]
Abstract
Thermal stability of erythrocyte membrane is a measure for its ability to maintain permeability barrier at deleterious conditions. Hence, it could impact the resistance of erythrocytes against detrimental factors in circulation. In this study the thermostability of erythrocyte membranes was expressed by the temperature, T(go), at which the transmembrane gradient of ion concentration rapidly dissipated during transient heating. T(go) is the inducing temperature of the membrane transition that activated passive ion permeability at hyperthermia causing thermal hemolysis. A good allometric correlation of T(go) to the resistance against thermal hemolysis and the life span of erythrocytes were found for 13 mammals; sheep, cow, goat, dog, horse, man, rabbit, pig, cat, hamster, guinea pig, rat, and mouse. For the same group, the values of T(go) were strictly related to the sphingomyelin content of erythrocyte membranes. The residual ion permeability, P, was temperature activated from 38 to 57 degrees C with activation energy of 250+/-15 kJ/mol that strongly differed from that below 37 degrees C. The projected value of P at 37 degrees C was about half that of residual physiological permeability for Na+ and K+ that build ground for possible explanation of the life span vs membrane thermostability allometric correlation.
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Affiliation(s)
- Ivan Tanev Ivanov
- Department of Physics and Biophysics, Stara Zagora Medical Faculty, Thracian University, Stara Zagora 6000, Bulgaria.
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12
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Ivanov IT, Tolekova A, Chakaarova P. Erythrocyte membrane defects in hemolytic anemias found through derivative thermal analysis of electric impedance. ACTA ACUST UNITED AC 2007; 70:641-8. [PMID: 17395266 DOI: 10.1016/j.jbbm.2007.02.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2006] [Revised: 02/21/2007] [Accepted: 02/22/2007] [Indexed: 01/26/2023]
Abstract
Hereditary hemolytic anemias originate mainly from defects in hemoglobin and plasma membrane proteins. Here, we propose a new method, thermal analysis of impedance, sensitive to membrane defects. It detects three processes in erythrocyte membrane; fall in membrane capacity at 49.5 degrees C and activation of passive PO(4)(2+) permeability at 37 degrees C and inorganic ions at 61.5 degrees C. The denaturation of spectrin is involved in the first process whilst the anion channel is involved in latter processes. Using this method three persons with xerocytosis were found whereby the fall in membrane capacity and spherization of erythrocytes were both postponed (53 degrees C) compared to control (49.5 degrees C). In contrast to control cells, strong activation of passive permeability for Cl(-) at 37 degrees C and sucrose at 61 degrees C were detected that were both eliminated by pre-inhibition of the anion channel with 4,4'-diisothiocyanato-stilbene-2,2'-disulfonic acid (DIDS). In addition, erythrocytes from 15 patients with various forms of anemia were studied in intact state and after refreshment. The results were compared with the data of clinical laboratory and osmotic fragility test. The final conclusion is that this method detects membrane defects with altered spectrin and anion channel syndrome (hereditary xerocytosis, spherocytosis, poikilocytosis and pyropoikilocytosis, elliptocytosis and stomatocytosis) and, after refreshment, helps differentiate them from the anemia with hemoglobinopathy.
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Affiliation(s)
- I T Ivanov
- Department of Physics, Biophysics, Roentgenology and Radiology, Medical Faculty, Thracian University, Stara Zagora 6000, Bulgaria.
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Derivative conductometry profile of thermal alterations in cellular membranes—a possible relationship between membrane alterations, cellular proliferation capacity and maximum temperature of growth. J Therm Biol 2002. [DOI: 10.1016/s0306-4565(01)00075-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ivanov I, Boytcheva S, Mihailova G. Parallel study of thermal resistance and permeability barrier stability of Enterococcus faecalis as affected by salt composition, growth temperature and pre-incubation temperature. J Therm Biol 1999. [DOI: 10.1016/s0306-4565(99)00012-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Ivanov I. Investigation of surface and shape changes accompanying the membrane alteration responsible for the heat-induced lysis of human erythrocytes. Colloids Surf B Biointerfaces 1999. [DOI: 10.1016/s0927-7765(99)00045-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Impact of thermohaemolysis-associated membrane alteration on the passive ion permeability and life-span of erythrocytes. J Therm Biol 1999. [DOI: 10.1016/s0306-4565(99)00003-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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