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Szabová J, Mravec F, Mokhtari M, Le Borgne R, Kalina M, Berret JF. N,N,N-Trimethyl chitosan as a permeation enhancer for inhalation drug delivery: Interaction with a model pulmonary surfactant. Int J Biol Macromol 2023; 239:124235. [PMID: 37001781 DOI: 10.1016/j.ijbiomac.2023.124235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 03/13/2023] [Accepted: 03/26/2023] [Indexed: 04/08/2023]
Abstract
N,N,N-Trimethyl chitosan (TMC), a biocompatible and biodegradable derivative of chitosan, is currently used as a permeation enhancer to increase the translocation of drugs to the bloodstream in the lungs. This article discusses the effect of TMC on a mimetic pulmonary surfactant, Curosurf®, a low-viscosity lipid formulation administered to preterm infants with acute respiratory distress syndrome. Curosurf® exhibits a strong interaction with TMC, resulting in the formation of aggregates at electrostatic charge stoichiometry. At nanoscale, Curosurf® undergoes a profound reorganization of its lipid vesicles in terms of size and lamellarity. The initial micron-sized vesicles (average size 4.8 μm) give way to a froth-like network of unilamellar vesicles about 300 nm in size. Under such conditions, neutralization of the cationic charges by pulmonary surfactant may inhibit TMC permeation enhancer capacity, especially as electrostatic charge complexation is found at low TMC content. The permeation properties of pulmonary surfactant-neutralized TMC should then be evaluated for its applicability as a permeation enhancer for inhalation in the alveolar region.
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Affiliation(s)
- Jana Szabová
- Université Paris Cité, CNRS, Matière et Systèmes Complexes, 75013 Paris, France; Materials Research Centre, Faculty of Chemistry, Brno University of Technology, Brno, Czech Republic.
| | - Filip Mravec
- Materials Research Centre, Faculty of Chemistry, Brno University of Technology, Brno, Czech Republic
| | - Mostafa Mokhtari
- Neonatal Intensive Care Unit, Hôpitaux Universitaires Paris - Saclay, Hôpital Universitaire de Bicêtre, Espace Ethique/Île-deFrance, Hôpital Universitaire Saint-Louis - APHP, Paris, France
| | - Rémi Le Borgne
- Université de Paris, CNRS, Institute Jacques Monod, 75013 Paris, France
| | - Michal Kalina
- Materials Research Centre, Faculty of Chemistry, Brno University of Technology, Brno, Czech Republic
| | - Jean-François Berret
- Université Paris Cité, CNRS, Matière et Systèmes Complexes, 75013 Paris, France.
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2
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Liu JY, Sayes CM. Lung surfactant as a biophysical assay for inhalation toxicology. Curr Res Toxicol 2022; 4:100101. [PMID: 36687216 PMCID: PMC9849875 DOI: 10.1016/j.crtox.2022.100101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 11/21/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022] Open
Abstract
Lung surfactant (LS) is a mixture of lipids and proteins that forms a thin film at the gas-exchange surfaces of the alveoli. The components and ultrastructure of LS contribute to its biophysical and biochemical functions in the respiratory system, most notably the lowering of surface tension to facilitate breathing mechanics. LS inhibition can be caused by metabolic deficiencies or the intrusion of endogenous or exogenous substances. While LS has been sourced from animals or synthesized for clinical therapeutics, the biofluid mixture has also gained recent interest as a biophysical model for inhalation toxicity. Various methods can be used to evaluate LS function quantitatively or qualitatively after exposure to potential toxicants. A narrative review of the recent literature was conducted. Studies focused whether LS was inhibited by various environmental contaminants, nanoparticles, or manufactured products. A review is also conducted on synthetic lung surfactants (SLS), which have emerged as a promising alternative to conventional animal-sourced LS. The intrinsic advantages and recent advances of SLS make a strong case for more widespread usage in LS-based toxicological assays.
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Affiliation(s)
| | - Christie M. Sayes
- Corresponding author at: Baylor University, Department of Environmental Science, One Bear Place # 97266, Waco, TX 76798-7266.
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3
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Berret JF. Comment on "Bilayer aggregate microstructure determines viscoelasticity of lung surfactant suspensions" by C. O. Ciutara and J. A. Zasadzinski, Soft Matter, 2021, 17, 5170-5182. SOFT MATTER 2022; 18:8514-8519. [PMID: 36300502 DOI: 10.1039/d2sm00653g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
For applications of pulmonary surfactant delivery to the lungs, the question of rheology of the existing clinical formulations is of upmost importance. Recently, Ciutara and Zasadsinky (C. O. Ciutara and J. A. Zasadzinski, Soft Matter, 2021, 17, 5170-5182.) measured the rheological properties of Infasurf®, Survanta® and Curosurf®, three of the most used pulmonary surfactant substitutes. This study revealed that these fluids are shear-thinning and characterized by a yield stress. The results obtained by Ciutara et al. on Curosurf® differ from our results published in L.-P.-A. Thai, F. Mousseau, E. Oikonomou, M. Radiom and J.-F. Berret, Colloids Surf., B, 2019, 178, 337-345. and in L.-P.-A. Thai, F. Mousseau, E. Oikonomou, M. Radiom and J.-F. Berret, ACS Nano, 2020, 14, 466-475. In contrast, we found that Curosurf® suspensions are viscous Newtonian or slightly shear-thinning fluids, with no evidence of yield stress. The purpose of this Comment is to discuss possible causes for the discrepancy between the two studies, and to suggest that for biological fluids such as surfactant substitutes, the microrheology technique of rotational magnetic spectroscopy (MRS) can provide valuable results.
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Affiliation(s)
- Jean-François Berret
- Université Paris Cité, CNRS, Matière et Systèmes Complexes, 75013 Paris, France.
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4
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Berret JF, Mousseau F, Le Borgne R, Oikonomou EK. Sol-gel transition induced by alumina nanoparticles in a model pulmonary surfactant. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Cryogenic Electron Microscopy Methodologies as Analytical Tools for the Study of Self-Assembled Pharmaceutics. Pharmaceutics 2021; 13:pharmaceutics13071015. [PMID: 34371706 PMCID: PMC8308931 DOI: 10.3390/pharmaceutics13071015] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 06/28/2021] [Accepted: 06/28/2021] [Indexed: 12/13/2022] Open
Abstract
Many pharmaceutics are aqueous dispersions of small or large molecules, often self-assembled in complexes from a few to hundreds of molecules. In many cases, the dispersing liquid is non-aqueous. Many pharmaceutical preparations are very viscous. The efficacy of those dispersions is in many cases a function of the nanostructure of those complexes or aggregates. To study the nanostructure of those systems, one needs electron microscopy, the only way to obtain nanostructural information by recording direct images whose interpretation is not model-dependent. However, these methodologies are complicated by the need to make liquid systems compatible with high vacuum in electron microscopes. There are also issues related to the interaction of the electron beam with the specimen such as micrograph contrast, electron beam radiation damage, and artifacts associated with specimen preparation. In this article, which is focused on the state of the art of imaging self-assembled complexes, we briefly describe cryogenic temperature transmission electron microscopy (cryo-TEM) and cryogenic temperature scanning electron microcopy (cryo-SEM). We present the principles of these methodologies, give examples of their applications as analytical tools for pharmaceutics, and list their limitations and ways to avoid pitfalls in their application.
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6
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Moncalvo F, Martinez Espinoza MI, Cellesi F. Nanosized Delivery Systems for Therapeutic Proteins: Clinically Validated Technologies and Advanced Development Strategies. Front Bioeng Biotechnol 2020; 8:89. [PMID: 32117952 PMCID: PMC7033645 DOI: 10.3389/fbioe.2020.00089] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 01/30/2020] [Indexed: 12/18/2022] Open
Abstract
The impact of protein therapeutics in healthcare is steadily increasing, due to advancements in the field of biotechnology and a deeper understanding of several pathologies. However, their safety and efficacy are often limited by instability, short half-life and immunogenicity. Nanodelivery systems are currently being investigated for overcoming these limitations and include covalent attachment of biocompatible polymers (PEG and other synthetic or naturally derived macromolecules) as well as protein nanoencapsulation in colloidal systems (liposomes and other lipid or polymeric nanocarriers). Such strategies have the potential to develop next-generation protein therapeutics. Herein, we review recent research progresses on these nanodelivery approaches, as well as future directions and challenges.
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Affiliation(s)
| | | | - Francesco Cellesi
- Dipartimento di Chimica, Materiali e Ingegneria Chimica “G. Natta”, Politecnico di Milano, Milan, Italy
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7
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Thai LPA, Mousseau F, Oikonomou E, Radiom M, Berret JF. Effect of Nanoparticles on the Bulk Shear Viscosity of a Lung Surfactant Fluid. ACS NANO 2020; 14:466-475. [PMID: 31854968 DOI: 10.1021/acsnano.9b06293] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Inhaled nanoparticles (<100 nm) reaching the deep lung region first interact with the pulmonary surfactant, a thin lipid film lining the alveolar epithelium. To date, most biophysical studies have focused on particle-induced modifications of the film interfacial properties. In comparison, there is less work on the surfactant bulk properties and on their changes upon particle exposure. Here we study the viscoelastic properties of a biomimetic pulmonary surfactant in the presence of various engineered nanoparticles. The microrheology technique used is based on the remote actuation of micron-sized wires via the application of a rotating magnetic field and on time-lapse optical microscopy. It is found that particles strongly interacting with lipid vesicles, such as cationic silica (SiO2, 42 nm) and alumina (Al2O3, 40 nm) induce profound modifications of the surfactant flow properties, even at low concentrations. In particular, we find that silica causes fluidification, while alumina induces a liquid-to-soft solid transition. Both phenomena are described quantitatively and accounted for in the context of colloidal physics models. It is finally suggested that the structure and viscosity changes could impair the fluid reorganization and recirculation occurring during breathing.
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Affiliation(s)
- Le-Phuong-Anh Thai
- Matière et Systèmes Complexes , UMR 7057 CNRS Université Denis Diderot Paris-VII , Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet , 75205 Paris , France
| | - Fanny Mousseau
- Matière et Systèmes Complexes , UMR 7057 CNRS Université Denis Diderot Paris-VII , Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet , 75205 Paris , France
| | - Evdokia Oikonomou
- Matière et Systèmes Complexes , UMR 7057 CNRS Université Denis Diderot Paris-VII , Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet , 75205 Paris , France
| | - Milad Radiom
- Matière et Systèmes Complexes , UMR 7057 CNRS Université Denis Diderot Paris-VII , Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet , 75205 Paris , France
| | - Jean-François Berret
- Matière et Systèmes Complexes , UMR 7057 CNRS Université Denis Diderot Paris-VII , Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet , 75205 Paris , France
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8
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Mousseau F, Berret JF, Oikonomou EK. Design and Applications of a Fluorescent Labeling Technique for Lipid and Surfactant Preformed Vesicles. ACS OMEGA 2019; 4:10485-10493. [PMID: 31460145 PMCID: PMC6648494 DOI: 10.1021/acsomega.9b01094] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 06/05/2019] [Indexed: 05/27/2023]
Abstract
Amphiphilic molecules such as surfactants, lipids, and block copolymers can be assembled into bilayers and form vesicles. Fluorescent membrane labeling methods require the use of dye molecules that can be inserted into the bilayers at different stages of synthesis. To our knowledge, there is no generalized method for labeling preformed vesicles. Herein, we develop a versatile protocol that is suitable to both surfactant and lipid preformed vesicles and requires no separation or purification steps. On the basis of the lipophilic carbocyanine green dye PKH67, the methodology is assessed on zwitterionic phosphatidylcholine vesicles. To demonstrate its versatility, it is applied to dispersions of anionic or cationic vesicles, such as a drug administrated to premature infants with respiratory distress syndrome, or a vesicle formulation used as a fabric softener for home care applications. By means of fluorescence microscopy, we then visualize the interaction mechanisms of nanoparticles crossing live cell membranes and of surfactants adsorbed on a cotton fabric. These results highlight the advantages of a membrane labeling technique that is simple and applicable to a large number of soft matter systems.
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Affiliation(s)
- Fanny Mousseau
- Laboratoire Matière et Systèmes
Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII,
Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France
| | - Jean-François Berret
- Laboratoire Matière et Systèmes
Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII,
Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France
| | - Evdokia K. Oikonomou
- Laboratoire Matière et Systèmes
Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII,
Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France
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9
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Thai LPA, Mousseau F, Oikonomou EK, Berret JF. On the rheology of pulmonary surfactant: Effects of concentration and consequences for the surfactant replacement therapy. Colloids Surf B Biointerfaces 2019; 178:337-345. [PMID: 30897431 DOI: 10.1016/j.colsurfb.2019.03.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 03/07/2019] [Accepted: 03/10/2019] [Indexed: 02/06/2023]
Abstract
The role of pulmonary surfactant is to reduce the surface tension in the lungs and to facilitate breathing. Surfactant replacement therapy (SRT) aims at bringing a substitute by instillation into the airways, a technique that has proven to be efficient and lifesaving for preterm infants. Adapting this therapy to adults requires to scale the administered dose to the patient body weight and to increase the lipid concentration, whilst maintaining its surface and flow properties similar. Here, we exploit a magnetic wire-based microrheology technique to measure the viscosity of the exogenous pulmonary surfactant Curosurf® in various experimental conditions. The Curosurf® viscosity is found to increase exponentially with lipid concentration following the Krieger-Dougherty law of colloids. The Krieger-Dougherty behavior also predicts a divergence of the viscosity at the liquid-to-gel transition. For Curosurf® the transition concentration is found close to the concentration at which it is formulated (117 g L-1versus 80 g L-1). This outcome suggests that for SRT the surfactant rheological properties need to be monitored and kept within a certain range. The results found here could help in producing suspensions for respiratory distress syndrome adapted to adults. The present work also demonstrates the potential of the magnetic wire microrheology technique as an accurate tool to explore biological soft matter dynamics.
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Affiliation(s)
- L P A Thai
- Matière et Systèmes Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France
| | - F Mousseau
- Matière et Systèmes Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France
| | - E K Oikonomou
- Matière et Systèmes Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France
| | - J-F Berret
- Matière et Systèmes Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France.
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10
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Nanoparticle-Lipid Interaction: Job Scattering Plots to Differentiate Vesicle Aggregation from Supported Lipid Bilayer Formation. COLLOIDS AND INTERFACES 2018. [DOI: 10.3390/colloids2040050] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The impact of nanomaterials on lung fluids, or on the plasma membrane of living cells, has prompted researchers to examine the interactions between nanoparticles and lipid vesicles. Recent studies have shown that nanoparticle-lipid interaction leads to a broad range of structures including supported lipid bilayers (SLB), particles adsorbed at the surface or internalized inside vesicles, and mixed aggregates. Currently, there is a need to have simple protocols that can readily evaluate the structures made from particles and vesicles. Here we apply the method of continuous variation for measuring Job scattering plots and provide analytical expressions for the scattering intensity in various scenarios. The result that emerges from the comparison between experiments and modeling is that electrostatics play a key role in the association, but it is not sufficient to induce the formation of supported lipid bilayers.
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11
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Mousseau F, Berret JF. The role of surface charge in the interaction of nanoparticles with model pulmonary surfactants. SOFT MATTER 2018; 14:5764-5774. [PMID: 29989135 DOI: 10.1039/c8sm00925b] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Inhaled nanoparticles traveling through the airways are able to reach the respiratory zone of the lungs. In such an event, the incoming particles first come into contact with the liquid lining the alveolar epithelium, the pulmonary surfactant. The pulmonary surfactant is composed of lipids and proteins that are assembled into large vesicular structures. The question of the nature of the biophysicochemical interaction with the pulmonary surfactant is central to understand how the nanoparticles can cross the air-blood barrier. Here we explore the phase behavior of sub-100 nm particles and surfactant substitutes under controlled conditions. Three types of surfactant mimetics, including the exogenous substitute Curosurf®, a drug administered to infants with respiratory distress syndrome, are tested together with aluminum oxide (Al2O3), silicon dioxide (SiO2) and polymer (latex) nanoparticles. The main result here is the observation of spontaneous nanoparticle-vesicle aggregation induced by coulombic attraction. The role of the surface charges is clearly established. We also evaluate the supported lipid bilayer formation recently predicted and find that in the cases studied these structures do not occur. Pertaining to the aggregate internal structure, fluorescence microscopy shows that the vesicles and particles are intermixed at the nano- to microscale. With particles acting as stickers between vesicles, it is anticipated that the presence of inhaled nanomaterials in the alveolar spaces could significantly modify the interfacial and bulk properties of the pulmonary surfactant and interfere with lung physiology.
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Affiliation(s)
- F Mousseau
- Matière et Systèmes Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France.
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12
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Mousseau F, Puisney C, Mornet S, Borgne RL, Vacher A, Airiau M, Baeza-Squiban A, Berret JF. Supported pulmonary surfactant bilayers on silica nanoparticles: formulation, stability and impact on lung epithelial cells. NANOSCALE 2017; 9:14967-14978. [PMID: 28953277 DOI: 10.1039/c7nr04574c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Studies have shown that following exposure to particulate matter, ultrafine fractions (<100 nm) may deposit along the respiratory tract down to the alveolar region. To assess the effects of nanoparticles on the lungs, it is essential to address the question of their biophysicochemical interaction with the different pulmonary environments, including the lung lining fluids and the epithelia. Here we examine one of these interactive scenarios and study the role of supported lipid bilayers (SLB) in the effect of 40 nm fluorescent silica particles on living cells. We first study the particle phase behavior in the presence of Curosurf®, a pulmonary surfactant substitute used in replacement therapies. It is found that Curosurf® vesicles interact strongly with the nanoparticles, but do not spontaneously form SLBs. To achieve this goal, we use sonication to reshape the vesicular membranes and induce lipid fusion around the particles. Centrifugal sedimentation and electron microscopy are carried out to determine the optimum coating conditions and layer thickness. We then explore the impact of surfactant SLBs on the cytotoxic potential and interactions towards a malignant epithelial cell line. All in vitro assays indicate that SLBs mitigate the particle toxicity and internalization rates. In the cytoplasm, the particle localization is also strongly coating dependent. It is concluded that SLBs profoundly affect cellular interactions and functions in vitro and could represent an alternative strategy for particle coating. The current data also shed some light on the potential mechanisms pertaining to the particle or pathogen transport through the air-blood barrier.
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Affiliation(s)
- F Mousseau
- Matière et Systèmes Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France.
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13
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Procoagulant activity of extracellular vesicles as a potential biomarker for risk of thrombosis and DIC in patients with acute leukaemia. J Thromb Thrombolysis 2017; 43:224-232. [PMID: 28074413 DOI: 10.1007/s11239-016-1471-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Haemostatic complication is common for patients with hematologic malignancies. Recent studies suggest that the procoagulant activity (PCA) of extracellular vesicles (EV) may play a major role in venous thromboembolism and disseminated intravascular coagulation (DIC) in acute leukaemia. To study the impact of EVs from leukaemic patients on thrombin generation and to assess EV-PCA as a potential biomarker for thrombotic complications in patients with acute leukaemia. Blood samples from a cohort of patients with newly diagnosed acute leukaemia were obtained before treatment (D-0), 3 and 7 days after treatment (D-3 and D-7). Extracellular vesicles were isolated and concentrated by ultracentrifugation. EV-PCA was assessed by thrombin generation assay, and EV-associated tissue factor activity was measured using a commercial bio-immunoassay (Zymuphen MP-TF®). Of the 53 patients, 6 had increased EV-PCA at D-0 and 4 had a thrombotic event. Patients without thrombotic events (n = 47) had no elevated EV-PCA. One patient had increased EVs with procoagulant activity at D-3 and developed a DIC at D-5. This patient had no increased EVs-related tissue factor activity from D-0 to D-7 (<2 pg/ml). Eight patients had increased EVs with tissue factor activity (>2 pg/ml), of these, four had a thrombosis and two had haemorrhages. Procoagulant activity of extracellular vesicles could have a predictive value in excluding the risk of thrombotic events. Our findings also suggest a possible association between thrombotic events and EV-PCA.
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Kumar A, Bicer EM, Morgan AB, Pfeffer PE, Monopoli M, Dawson KA, Eriksson J, Edwards K, Lynham S, Arno M, Behndig AF, Blomberg A, Somers G, Hassall D, Dailey LA, Forbes B, Mudway IS. Enrichment of immunoregulatory proteins in the biomolecular corona of nanoparticles within human respiratory tract lining fluid. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 12:1033-1043. [PMID: 26767511 DOI: 10.1016/j.nano.2015.12.369] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 12/04/2015] [Accepted: 12/10/2015] [Indexed: 12/19/2022]
Abstract
UNLABELLED When inhaled nanoparticles deposit in the lungs, they transit through respiratory tract lining fluid (RTLF) acquiring a biomolecular corona reflecting the interaction of the RTLF with the nanomaterial surface. Label-free snapshot proteomics was used to generate semi-quantitative profiles of corona proteins formed around silica (SiO2) and poly(vinyl) acetate (PVAc) nanoparticles in RTLF, the latter employed as an archetype drug delivery vehicle. The evolved PVAc corona was significantly enriched compared to that observed on SiO2 nanoparticles (698 vs. 429 proteins identified); however both coronas contained a substantial contribution from innate immunity proteins, including surfactant protein A, napsin A and complement (C1q and C3) proteins. Functional protein classification supports the hypothesis that corona formation in RTLF constitutes opsonisation, preparing particles for phagocytosis and clearance from the lungs. These data highlight how an understanding of the evolved corona is necessary for the design of inhaled nanomedicines with acceptable safety and tailored clearance profiles. FROM THE CLINICAL EDITOR Inhaled nanoparticles often acquire a layer of protein corona while they go through the respiratory tract. Here, the authors investigated the identity of these proteins. The proper identification would improve the understanding of the use of inhaled nanoparticles in future therapeutics.
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Affiliation(s)
- Abhinav Kumar
- Institute of Pharmaceutical Science, Faculty of Life Sciences and Medicine, King's College, LondonUK.
| | - Elif Melis Bicer
- MRC-PHE Centre for Environment and Health and NIHR-HPRU in the Health Impact of Environmental Hazards, Environmental and Analytical Research, Division, Faculty of Life Sciences and Medicine, King's College, London, UK
| | - Anna Babin Morgan
- Institute of Pharmaceutical Science, Faculty of Life Sciences and Medicine, King's College, LondonUK
| | - Paul E Pfeffer
- MRC & Asthma UK Centre in Allergic Mechanisms of Asthma, Faculty of Life Sciences and Medicine, King's College, London, UK
| | - Marco Monopoli
- Centre for BioNano Interactions, University College Dublin, Belfield, Dublin 4, Ireland
| | - Kenneth A Dawson
- Centre for BioNano Interactions, University College Dublin, Belfield, Dublin 4, Ireland
| | - Jonny Eriksson
- Department of Chemistry - BMC, Uppsala University, Sweden
| | | | - Steven Lynham
- Institute of Psychiatry, Psychology and Neuroscience, Faculty of Life Sciences and Medicine, King's College, London, UK
| | - Matthew Arno
- Genomics Centre, Faculty of Life Sciences and Medicine, King's College, London, UK
| | - Annelie F Behndig
- Department of Public Health and Clinical Medicine, Division of Medicine/Respiratory Medicine and Allergy, Umeå University, Umeå, Sweden
| | - Anders Blomberg
- Department of Public Health and Clinical Medicine, Division of Medicine/Respiratory Medicine and Allergy, Umeå University, Umeå, Sweden
| | - Graham Somers
- GSK Medicines Research Centre, Stevenage, Hertfordshire, UK
| | - Dave Hassall
- GSK Medicines Research Centre, Stevenage, Hertfordshire, UK
| | - Lea Ann Dailey
- Institute of Pharmaceutical Science, Faculty of Life Sciences and Medicine, King's College, LondonUK
| | - Ben Forbes
- Institute of Pharmaceutical Science, Faculty of Life Sciences and Medicine, King's College, LondonUK
| | - Ian S Mudway
- MRC-PHE Centre for Environment and Health and NIHR-HPRU in the Health Impact of Environmental Hazards, Environmental and Analytical Research, Division, Faculty of Life Sciences and Medicine, King's College, London, UK
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15
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Mousseau F, Le Borgne R, Seyrek E, Berret JF. Biophysicochemical Interaction of a Clinical Pulmonary Surfactant with Nanoalumina. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:7346-7354. [PMID: 26075579 DOI: 10.1021/acs.langmuir.5b01639] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report on the interaction of pulmonary surfactant composed of phospholipids and proteins with nanometric alumina (Al2O3) in the context of lung exposure and nanotoxicity. We study the bulk properties of phospholipid/nanoparticle dispersions and determine the nature of their interactions. The clinical surfactant Curosurf, both native and extruded, and a protein-free surfactant are investigated. The phase behavior of mixed surfactant/particle dispersions was determined by optical and electron microscopy, light scattering, and zeta potential measurements. It exhibits broad similarities with that of strongly interacting nanosystems such as polymers, proteins or particles, and supports the hypothesis of electrostatic complexation. At a critical stoichiometry, micron-sized aggregates arising from the association between oppositely charged vesicles and nanoparticles are formed. Contrary to the models of lipoprotein corona or of particle wrapping, our work shows that vesicles maintain their structural integrity and trap the particles at their surfaces. The agglomeration of particles in surfactant phase is a phenomenon of importance that could change the interactions of the particles with lung cells.
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Affiliation(s)
- F Mousseau
- †Laboratoire Matière et Systèmes Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France
| | - R Le Borgne
- ‡ImagoSeine Electron Microscopy Facility, Institut Jacques Monod, UMR 7592, CNRS - Université Paris Diderot Paris-VII, 75013 Paris, France
| | - E Seyrek
- †Laboratoire Matière et Systèmes Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France
| | - J-F Berret
- †Laboratoire Matière et Systèmes Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France
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Issman L, Brenner B, Talmon Y, Aharon A. Cryogenic transmission electron microscopy nanostructural study of shed microparticles. PLoS One 2013; 8:e83680. [PMID: 24386253 PMCID: PMC3873325 DOI: 10.1371/journal.pone.0083680] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Accepted: 11/06/2013] [Indexed: 11/21/2022] Open
Abstract
Microparticles (MPs) are sub-micron membrane vesicles (100–1000 nm) shed from normal and pathologic cells due to stimulation or apoptosis. MPs can be found in the peripheral blood circulation of healthy individuals, whereas elevated concentrations are found in pregnancy and in a variety of diseases. Also, MPs participate in physiological processes, e.g., coagulation, inflammation, and angiogenesis. Since their clinical properties are important, we have developed a new methodology based on nano-imaging that provides significant new data on MPs nanostructure, their composition and function. We are among the first to characterize by direct-imaging cryogenic transmitting electron microscopy (cryo-TEM) the near-to-native nanostructure of MP systems isolated from different cell types and stimulation procedures. We found that there are no major differences between the MP systems we have studied, as most particles were spherical, with diameters from 200 to 400 nm. However, each MP population is very heterogeneous, showing diverse morphologies. We investigated by cryo-TEM the effects of standard techniques used to isolate and store MPs, and found that either high-g centrifugation of MPs for isolation purposes, or slow freezing to –80°C for storage introduce morphological artifacts, which can influence MP nanostructure, and thus affect the efficiency of these particles as future diagnostic tools.
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Affiliation(s)
- Liron Issman
- Department of Chemical Engineering and The Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa, Israel
- * E-mail: (LI); (YT)
| | - Benjamin Brenner
- The Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
- Thrombosis and Hemostasis Unit, Department of Hematology, Rambam Health Care Campus, Haifa, Israel
| | - Yeshayahu Talmon
- Department of Chemical Engineering and The Russell Berrie Nanotechnology Institute (RBNI), Technion-Israel Institute of Technology, Haifa, Israel
- * E-mail: (LI); (YT)
| | - Anat Aharon
- The Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
- Thrombosis and Hemostasis Unit, Department of Hematology, Rambam Health Care Campus, Haifa, Israel
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WITHDRAWN: Cryo-TEM of molecular assemblies. Curr Opin Colloid Interface Sci 2012. [DOI: 10.1016/j.cocis.2012.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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