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Nouaman M, Darras A, John T, Simionato G, Rab MAE, van Wijk R, Laschke MW, Kaestner L, Wagner C, Recktenwald SM. Effect of Cell Age and Membrane Rigidity on Red Blood Cell Shape in Capillary Flow. Cells 2023; 12:1529. [PMID: 37296651 PMCID: PMC10252257 DOI: 10.3390/cells12111529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/30/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
Blood flow in the microcirculatory system is crucially affected by intrinsic red blood cell (RBC) properties, such as their deformability. In the smallest vessels of this network, RBCs adapt their shapes to the flow conditions. Although it is known that the age of RBCs modifies their physical properties, such as increased cytosol viscosity and altered viscoelastic membrane properties, the evolution of their shape-adapting abilities during senescence remains unclear. In this study, we investigated the effect of RBC properties on the microcapillary in vitro flow behavior and their characteristic shapes in microfluidic channels. For this, we fractioned RBCs from healthy donors according to their age. Moreover, the membranes of fresh RBCs were chemically rigidified using diamide to study the effect of isolated graded-membrane rigidity. Our results show that a fraction of stable, asymmetric, off-centered slipper-like cells at high velocities decreases with increasing age or diamide concentration. However, while old cells form an enhanced number of stable symmetric croissants at the channel centerline, this shape class is suppressed for purely rigidified cells with diamide. Our study provides further knowledge about the distinct effects of age-related changes of intrinsic cell properties on the single-cell flow behavior of RBCs in confined flows due to inter-cellular age-related cell heterogeneity.
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Affiliation(s)
- Mohammed Nouaman
- Dynamics of Fluids, Department of Experimental Physics, Saarland University, 66123 Saarbrücken, Germany
| | - Alexis Darras
- Dynamics of Fluids, Department of Experimental Physics, Saarland University, 66123 Saarbrücken, Germany
| | - Thomas John
- Dynamics of Fluids, Department of Experimental Physics, Saarland University, 66123 Saarbrücken, Germany
| | - Greta Simionato
- Dynamics of Fluids, Department of Experimental Physics, Saarland University, 66123 Saarbrücken, Germany
- Institute for Clinical and Experimental Surgery, Saarland University, 66421 Homburg, Germany
| | - Minke A. E. Rab
- Central Diagnostic Laboratory-Research, University Medical Center Utrecht, Utrecht University, 3584 CX Utrecht, The Netherlands
- Department of Hematology, University Medical Center Utrecht, Utrecht University, 3584 CX Utrecht, The Netherlands
| | - Richard van Wijk
- Central Diagnostic Laboratory-Research, University Medical Center Utrecht, Utrecht University, 3584 CX Utrecht, The Netherlands
| | - Matthias W. Laschke
- Institute for Clinical and Experimental Surgery, Saarland University, 66421 Homburg, Germany
| | - Lars Kaestner
- Dynamics of Fluids, Department of Experimental Physics, Saarland University, 66123 Saarbrücken, Germany
- Theoretical Medicine and Biosciences, Saarland University, 66421 Homburg, Germany
| | - Christian Wagner
- Dynamics of Fluids, Department of Experimental Physics, Saarland University, 66123 Saarbrücken, Germany
- Physics and Materials Science Research Unit, University of Luxembourg, L-1511 Luxembourg, Luxembourg
| | - Steffen M. Recktenwald
- Dynamics of Fluids, Department of Experimental Physics, Saarland University, 66123 Saarbrücken, Germany
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Volkmar N, Gawden‐Bone CM, Williamson JC, Nixon‐Abell J, West JA, St George‐Hyslop PH, Kaser A, Lehner PJ. Regulation of membrane fluidity by RNF145-triggered degradation of the lipid hydrolase ADIPOR2. EMBO J 2022; 41:e110777. [PMID: 35993436 PMCID: PMC9531299 DOI: 10.15252/embj.2022110777] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 07/18/2022] [Accepted: 07/20/2022] [Indexed: 12/19/2022] Open
Abstract
The regulation of membrane lipid composition is critical for cellular homeostasis. Cells are particularly sensitive to phospholipid saturation, with increased saturation causing membrane rigidification and lipotoxicity. How mammalian cells sense membrane lipid composition and reverse fatty acid (FA)-induced membrane rigidification is poorly understood. Here we systematically identify proteins that differ between mammalian cells fed saturated versus unsaturated FAs. The most differentially expressed proteins were two ER-resident polytopic membrane proteins: the E3 ubiquitin ligase RNF145 and the lipid hydrolase ADIPOR2. In unsaturated lipid membranes, RNF145 is stable, promoting its lipid-sensitive interaction, ubiquitination and degradation of ADIPOR2. When membranes become enriched in saturated FAs, RNF145 is rapidly auto-ubiquitinated and degraded, stabilising ADIPOR2, whose hydrolase activity restores lipid homeostasis and prevents lipotoxicity. We therefore identify RNF145 as a FA-responsive ubiquitin ligase which, together with ADIPOR2, defines an autoregulatory pathway that controls cellular membrane lipid homeostasis and prevents acute lipotoxic stress.
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Affiliation(s)
- Norbert Volkmar
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Jeffrey Cheah Biomedical CentreUniversity of CambridgeCambridgeUK
- Present address:
Institute for Molecular Systems Biology (IMSB)ETH ZürichZürichSwitzerland
| | - Christian M Gawden‐Bone
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Jeffrey Cheah Biomedical CentreUniversity of CambridgeCambridgeUK
| | - James C Williamson
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Jeffrey Cheah Biomedical CentreUniversity of CambridgeCambridgeUK
| | | | - James A West
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Jeffrey Cheah Biomedical CentreUniversity of CambridgeCambridgeUK
| | | | - Arthur Kaser
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Jeffrey Cheah Biomedical CentreUniversity of CambridgeCambridgeUK
| | - Paul J Lehner
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Jeffrey Cheah Biomedical CentreUniversity of CambridgeCambridgeUK
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3
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Sellami F, Kebiche-Senhadji O, Marais S, Lanel C, Fatyeyeva K. Novel Poly(Vinylidene Fluoride)/Montmorillonite Polymer Inclusion Membrane: Application to Cr(VI) Extraction from Polluted Water. Membranes (Basel) 2021; 11:membranes11090682. [PMID: 34564498 PMCID: PMC8468779 DOI: 10.3390/membranes11090682] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/26/2021] [Accepted: 08/28/2021] [Indexed: 11/16/2022]
Abstract
Novel hybrid polymer inclusion membranes (PIMs) based on poly(vinylidene fluoride) (PVDF) (polymer matrix) and Aliquat 336 (ion carrier) and containing native sodium (Cloisite Na+ (CNa)) and organo-modified (Cloisite 30B (C30B)) Montmorillonites were elaborated and tested for the removal of toxic Cr(VI) ions from the aqueous solution. The influence of the nanoclay incorporation on the physicochemical properties of PVDF-based PIMs was studied and the resulting membrane transport properties of the Cr(VI) ions were investigated in detail. The water contact angle measurements reveal that the incorporation of the CNa nanofiller affects the membrane wettability as less hydrophilic surface is obtained in this case-~47° in the presence of CNa as compared with ~15° for PIMs with C30B. The membrane rigidity is found to be dependent on the type and size of the used Montmorillonite. The increase of Young's modulus is higher when CNa is incorporated in comparison with C30B. The stiffness of the PIM is strongly increased with CNa amount (four times higher with 30 wt %) which is not the case for C30B (only 1.5 times). Higher Cr(VI) permeation flux is obtained for PIMs containing CNa (~2.7 µmol/(m2·s)) owing to their porous structure as compared with membranes loaded with C30B and those without filler (~2 µmol/(m2·s) in both cases). The PIM with 20 wt % of native sodium Montmorillonite revealed satisfactory stability during five cycles of the Cr(VI) transport due to the high membrane rigidity and hydrophobicity. Much lower macromolecular chain mobility in this case allows limiting the carrier loss, thus increasing the membrane stability. On the contrary, a deterioration of the transport performance is recorded for the membrane filled with C30B and that without filler. The obtained results showed the possibility to extend the PIM lifetime through the incorporation of nanoparticles that diminish the carrier loss (Aliquat 336) from the membrane into the aqueous phase by limiting its mobility within the membrane by tortuosity effect and membrane stiffening without losing its permselective properties.
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Affiliation(s)
- Ferhat Sellami
- Laboratoire de Procédés Membranaires et de Technique de Séparation et de Récupération (LPMSTR), Faculté de Technologie, Université de Bejaia, Bejaia 06000, Algeria; (F.S.); (O.K.-S.)
- Normandie University, UNIROUEN, INSA Rouen, CNRS, Polymères, Biopolymères, Surfaces (PBS), 76000 Rouen, France
| | - Ounissa Kebiche-Senhadji
- Laboratoire de Procédés Membranaires et de Technique de Séparation et de Récupération (LPMSTR), Faculté de Technologie, Université de Bejaia, Bejaia 06000, Algeria; (F.S.); (O.K.-S.)
| | - Stéphane Marais
- Normandie University, UNIROUEN, INSA Rouen, CNRS, Polymères, Biopolymères, Surfaces (PBS), 76000 Rouen, France
- Correspondence: (S.M.); (K.F.)
| | - Charles Lanel
- Normandie University, UNIROUEN, UFR Sciences et Technique, 76000 Rouen, France;
| | - Kateryna Fatyeyeva
- Normandie University, UNIROUEN, INSA Rouen, CNRS, Polymères, Biopolymères, Surfaces (PBS), 76000 Rouen, France
- Correspondence: (S.M.); (K.F.)
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4
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Guo X, Steinkühler J, Marin M, Li X, Lu W, Dimova R, Melikyan GB. Interferon-Induced Transmembrane Protein 3 Blocks Fusion of Diverse Enveloped Viruses by Altering Mechanical Properties of Cell Membranes. ACS Nano 2021; 15:8155-8170. [PMID: 33656312 PMCID: PMC8159881 DOI: 10.1021/acsnano.0c10567] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Interferon-induced transmembrane protein 3 (IFITM3) potently inhibits entry of diverse enveloped viruses by trapping the viral fusion at a hemifusion stage, but the underlying mechanism remains unclear. Here, we show that recombinant IFITM3 reconstituted into lipid vesicles induces negative membrane curvature and that this effect maps to its small amphipathic helix (AH). We demonstrate that AH (i) partitions into lipid-disordered domains where IAV fusion occurs, (ii) induces negative membrane curvature, and (iii) increases lipid order and membrane stiffness. These effects on membrane properties correlate with the fusion-inhibitory activity, as targeting the ectopically expressed AH peptide to the cytoplasmic leaflet of the cell plasma membrane diminishes IAV-cell surface fusion induced by exposure to acidic pH. Our results thus imply that IFITM3 inhibits the transition from hemifusion to full fusion by imposing an unfavorable membrane curvature and increasing the order and stiffness of the cytoplasmic leaflet of endosomal membranes. Our findings reveal a universal mechanism by which cells block entry of diverse enveloped viruses.
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Affiliation(s)
- Xiangyang Guo
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, United States
| | - Jan Steinkühler
- Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
| | - Mariana Marin
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, United States
| | - Xiang Li
- School of Pharmacy, Second Military Medical University, Shanghai, 200433, China
| | - Wuyuan Lu
- Institute of Human Virology and Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland 21201, United States
| | - Rumiana Dimova
- Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
| | - Gregory B. Melikyan
- Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, United States
- Children’s Healthcare of Atlanta, Atlanta, GA 30322, USA
- Corresponding author: Gregory B. Melikyan,
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Pollet H, Cloos AS, Stommen A, Vanderroost J, Conrard L, Paquot A, Ghodsi M, Carquin M, Léonard C, Guthmann M, Lingurski M, Vermylen C, Killian T, Gatto L, Rider M, Pyr dit Ruys S, Vertommen D, Vikkula M, Brouillard P, Van Der Smissen P, Muccioli GG, Tyteca D. Aberrant Membrane Composition and Biophysical Properties Impair Erythrocyte Morphology and Functionality in Elliptocytosis. Biomolecules 2020; 10:biom10081120. [PMID: 32751168 PMCID: PMC7465299 DOI: 10.3390/biom10081120] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/20/2020] [Accepted: 07/22/2020] [Indexed: 12/17/2022] Open
Abstract
Red blood cell (RBC) deformability is altered in inherited RBC disorders but the mechanism behind this is poorly understood. Here, we explored the molecular, biophysical, morphological, and functional consequences of α-spectrin mutations in a patient with hereditary elliptocytosis (pEl) almost exclusively expressing the Pro260 variant of SPTA1 and her mother (pElm), heterozygous for this mutation. At the molecular level, the pEI RBC proteome was globally preserved but spectrin density at cell edges was increased. Decreased phosphatidylserine vs. increased lysophosphatidylserine species, and enhanced lipid peroxidation, methemoglobin, and plasma acid sphingomyelinase (aSMase) activity were observed. At the biophysical level, although membrane transversal asymmetry was preserved, curvature at RBC edges and rigidity were increased. Lipid domains were altered for membrane:cytoskeleton anchorage, cholesterol content and response to Ca2+ exchange stimulation. At the morphological and functional levels, pEl RBCs exhibited reduced size and circularity, increased fragility and impaired membrane Ca2+ exchanges. The contribution of increased membrane curvature to the pEl phenotype was shown by mechanistic experiments in healthy RBCs upon lysophosphatidylserine membrane insertion. The role of lipid domain defects was proved by cholesterol depletion and aSMase inhibition in pEl. The data indicate that aberrant membrane content and biophysical properties alter pEl RBC morphology and functionality.
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Affiliation(s)
- Hélène Pollet
- CELL Unit & PICT Imaging Platform, de Duve Institute, UCLouvain, 1200 Brussels, Belgium; (H.P.); (A.-S.C.); (A.S.); (J.V.); (L.C.); (M.G.); (M.C.); (C.L.); (M.G.); (M.L.); (P.V.D.S.)
| | - Anne-Sophie Cloos
- CELL Unit & PICT Imaging Platform, de Duve Institute, UCLouvain, 1200 Brussels, Belgium; (H.P.); (A.-S.C.); (A.S.); (J.V.); (L.C.); (M.G.); (M.C.); (C.L.); (M.G.); (M.L.); (P.V.D.S.)
| | - Amaury Stommen
- CELL Unit & PICT Imaging Platform, de Duve Institute, UCLouvain, 1200 Brussels, Belgium; (H.P.); (A.-S.C.); (A.S.); (J.V.); (L.C.); (M.G.); (M.C.); (C.L.); (M.G.); (M.L.); (P.V.D.S.)
| | - Juliette Vanderroost
- CELL Unit & PICT Imaging Platform, de Duve Institute, UCLouvain, 1200 Brussels, Belgium; (H.P.); (A.-S.C.); (A.S.); (J.V.); (L.C.); (M.G.); (M.C.); (C.L.); (M.G.); (M.L.); (P.V.D.S.)
| | - Louise Conrard
- CELL Unit & PICT Imaging Platform, de Duve Institute, UCLouvain, 1200 Brussels, Belgium; (H.P.); (A.-S.C.); (A.S.); (J.V.); (L.C.); (M.G.); (M.C.); (C.L.); (M.G.); (M.L.); (P.V.D.S.)
| | - Adrien Paquot
- Bioanalysis and Pharmacology of Bioactive Lipids Research Group, Louvain Drug Research Institute, UCLouvain, 1200 Brussels, Belgium; (A.P.); (G.G.M.)
| | - Marine Ghodsi
- CELL Unit & PICT Imaging Platform, de Duve Institute, UCLouvain, 1200 Brussels, Belgium; (H.P.); (A.-S.C.); (A.S.); (J.V.); (L.C.); (M.G.); (M.C.); (C.L.); (M.G.); (M.L.); (P.V.D.S.)
| | - Mélanie Carquin
- CELL Unit & PICT Imaging Platform, de Duve Institute, UCLouvain, 1200 Brussels, Belgium; (H.P.); (A.-S.C.); (A.S.); (J.V.); (L.C.); (M.G.); (M.C.); (C.L.); (M.G.); (M.L.); (P.V.D.S.)
| | - Catherine Léonard
- CELL Unit & PICT Imaging Platform, de Duve Institute, UCLouvain, 1200 Brussels, Belgium; (H.P.); (A.-S.C.); (A.S.); (J.V.); (L.C.); (M.G.); (M.C.); (C.L.); (M.G.); (M.L.); (P.V.D.S.)
| | - Manuel Guthmann
- CELL Unit & PICT Imaging Platform, de Duve Institute, UCLouvain, 1200 Brussels, Belgium; (H.P.); (A.-S.C.); (A.S.); (J.V.); (L.C.); (M.G.); (M.C.); (C.L.); (M.G.); (M.L.); (P.V.D.S.)
| | - Maxime Lingurski
- CELL Unit & PICT Imaging Platform, de Duve Institute, UCLouvain, 1200 Brussels, Belgium; (H.P.); (A.-S.C.); (A.S.); (J.V.); (L.C.); (M.G.); (M.C.); (C.L.); (M.G.); (M.L.); (P.V.D.S.)
| | - Christiane Vermylen
- PEDI Unit, Institut de Recherche Expérimentale et Clinique & Saint-Luc Hospital, UCLouvain, 1200 Brussels, Belgium;
| | - Theodore Killian
- Computational Biology and Bioinformatics Unit, de Duve Institute, UCLouvain, 1200 Brussels, Belgium; (T.K.); (L.G.)
| | - Laurent Gatto
- Computational Biology and Bioinformatics Unit, de Duve Institute, UCLouvain, 1200 Brussels, Belgium; (T.K.); (L.G.)
| | - Mark Rider
- PHOS Unit & MASSPROT Proteomics Platform, de Duve Institute, UCLouvain, 1200 Brussels, Belgium; (M.R.); (S.P.d.R.); (D.V.)
| | - Sébastien Pyr dit Ruys
- PHOS Unit & MASSPROT Proteomics Platform, de Duve Institute, UCLouvain, 1200 Brussels, Belgium; (M.R.); (S.P.d.R.); (D.V.)
| | - Didier Vertommen
- PHOS Unit & MASSPROT Proteomics Platform, de Duve Institute, UCLouvain, 1200 Brussels, Belgium; (M.R.); (S.P.d.R.); (D.V.)
| | - Miikka Vikkula
- Human Molecular Genetics, de Duve Institute, UCLouvain, 1200 Brussels, Belgium; (M.V.); (P.B.)
- Walloon Excellence in Life Sciences and Biotechnology (WELBIO), de Duve Institute, UCLouvain, 1200 Brussels, Belgium
| | - Pascal Brouillard
- Human Molecular Genetics, de Duve Institute, UCLouvain, 1200 Brussels, Belgium; (M.V.); (P.B.)
| | - Patrick Van Der Smissen
- CELL Unit & PICT Imaging Platform, de Duve Institute, UCLouvain, 1200 Brussels, Belgium; (H.P.); (A.-S.C.); (A.S.); (J.V.); (L.C.); (M.G.); (M.C.); (C.L.); (M.G.); (M.L.); (P.V.D.S.)
| | - Giulio G. Muccioli
- Bioanalysis and Pharmacology of Bioactive Lipids Research Group, Louvain Drug Research Institute, UCLouvain, 1200 Brussels, Belgium; (A.P.); (G.G.M.)
| | - Donatienne Tyteca
- CELL Unit & PICT Imaging Platform, de Duve Institute, UCLouvain, 1200 Brussels, Belgium; (H.P.); (A.-S.C.); (A.S.); (J.V.); (L.C.); (M.G.); (M.C.); (C.L.); (M.G.); (M.L.); (P.V.D.S.)
- Correspondence:
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Naparlo K, Bartosz G, Stefaniuk I, Cieniek B, Soszynski M, Sadowska-Bartosz I. Interaction of Catechins with Human Erythrocytes. Molecules 2020; 25:molecules25061456. [PMID: 32213847 PMCID: PMC7145294 DOI: 10.3390/molecules25061456] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 03/17/2020] [Accepted: 03/20/2020] [Indexed: 12/13/2022] Open
Abstract
The aim of this study was to characterize the interaction of chosen catechins ((+)-catechin, (−)-epigallocatechin (EGC), and (−)-epigallocatechin gallate (EGCG)) with human erythrocytes and their protective effects against oxidative damage of erythrocytes. Uptake of the catechins by erythrocytes was studied by fluorimetry, their interaction with erythrocyte membrane was probed by changes in erythrocyte osmotic fragility and in membrane fluidity evaluated with spin labels, while protection against oxidative damage was assessed by protection against hemolysis induced by permanganate and protection of erythrocyte membranes against lipid peroxidation and protein thiol group oxidation. Catechin uptake was similar for all the compounds studied. Accumulation of catechins in the erythrocyte membrane was demonstrated by the catechin-induced increase in osmotic resistance and rigidification of the erythrocyte membrane detected by spin labels 5-doxyl stearic acid and 16-doxyl stearic acid. (−)-Epigallocatechin and EGCG inhibited erythrocyte acetylcholinesterase (mixed-type inhibition). Catechins protected erythrocytes against permanganate-induced hemolysis, oxidation of erythrocyte protein thiol groups, as well as membrane lipid peroxidation. These results contribute to the knowledge of the beneficial effects of catechins present in plant-derived food and beverages.
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Affiliation(s)
- Katarzyna Naparlo
- Department of Analytical Biochemistry, Institute of Food Technology and Nutrition, College of Natural Sciences, Rzeszow University, 35-601 Rzeszow, Poland;
| | - Grzegorz Bartosz
- Department of Bioenergetics and Food Analysis, Institute of Food Technology and Nutrition, College of Natural Sciences, Rzeszow University, 35-601 Rzeszow, Poland;
| | - Ireneusz Stefaniuk
- Teaching and Research Center of Microelectronics and Nanotechnology, College of Natural Sciences, University of Rzeszow, 35-959 Rzeszow, Poland; (I.S.); (B.C.)
| | - Bogumil Cieniek
- Teaching and Research Center of Microelectronics and Nanotechnology, College of Natural Sciences, University of Rzeszow, 35-959 Rzeszow, Poland; (I.S.); (B.C.)
| | - Miroslaw Soszynski
- Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 90-236 Lodz, Poland;
| | - Izabela Sadowska-Bartosz
- Department of Analytical Biochemistry, Institute of Food Technology and Nutrition, College of Natural Sciences, Rzeszow University, 35-601 Rzeszow, Poland;
- Correspondence:
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7
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Popp PF, Benjdia A, Strahl H, Berteau O, Mascher T. The Epipeptide YydF Intrinsically Triggers the Cell Envelope Stress Response of Bacillus subtilis and Causes Severe Membrane Perturbations. Front Microbiol 2020; 11:151. [PMID: 32117169 PMCID: PMC7026026 DOI: 10.3389/fmicb.2020.00151] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 01/22/2020] [Indexed: 01/05/2023] Open
Abstract
The Gram-positive model organism and soil bacterium Bacillus subtilis naturally produces a variety of antimicrobial peptides (AMPs), including the ribosomally synthesized and post-translationally modified AMP YydF, which is encoded in the yydFGHIJ locus. The yydF gene encodes the pre-pro-peptide, which is, in a unique manner, initially modified at two amino acid positions by the radical SAM epimerase YydG. Subsequently, the membrane-anchored putative protease YydH is thought to cleave and release the mature AMP, YydF, to the environment. The AMP YydF, with two discreet epimerizations among 17 residues as sole post-translational modification, defines a novel class of ribosomally synthesized and post-translationally modified peptides (RiPPs) called epipeptides, for which the mode-of-action (MOA) is unknown. The predicted ABC transporter encoded by yydIJ was previously postulated as an autoimmunity determinant of B. subtilis against its own AMP. Here, we demonstrate that extrinsically added YydF* kills B. subtilis cells by dissipating membrane potential via membrane permeabilization. This severe membrane perturbation is accompanied by a rapid reduction of membrane fluidity, substantiated by lipid domain formation. The epipeptide triggers a narrow and highly specific cellular response. The strong induction of liaIH expression, a marker for cell envelope stress in B. subtilis, further supports the MOA described above. A subsequent mutational study demonstrates that LiaIH—and not YydIJ—represents the most efficient resistance determinant against YydF* action. Unexpectedly, none of the observed cellular effects upon YydF* treatment alone are able to trigger liaIH expression, indicating that only the unique combination of membrane permeabilization and membrane rigidification caused by the epipetide, leads to the observed cell envelope stress response.
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Affiliation(s)
- Philipp F Popp
- Institute of Microbiology, Technische Universität (TU) Dresden, Dresden, Germany
| | - Alhosna Benjdia
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, ChemSyBio, Jouy-en-Josas, France
| | - Henrik Strahl
- Center for Bacterial Cell Biology, Biosciences Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Olivier Berteau
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, ChemSyBio, Jouy-en-Josas, France
| | - Thorsten Mascher
- Institute of Microbiology, Technische Universität (TU) Dresden, Dresden, Germany
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8
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Melero A, Chiaruttini N, Karashima T, Riezman I, Funato K, Barlowe C, Riezman H, Roux A. Lysophospholipids Facilitate COPII Vesicle Formation. Curr Biol 2018; 28:1950-1958.e6. [PMID: 29887313 PMCID: PMC6013297 DOI: 10.1016/j.cub.2018.04.076] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 03/05/2018] [Accepted: 04/24/2018] [Indexed: 12/15/2022]
Abstract
Coat protein complex II (COPII) proteins form vesicles from the endoplasmic reticulum to export cargo molecules to the Golgi apparatus. Among the many proteins involved in this process, Sec12 is a key regulator, functioning as the guanosine diphosphate (GDP) exchange factor for Sar1p, the small guanosine triphosphatase (GTPase) that initiates COPII assembly. Here we show that overexpression of phospholipase B3 in the thermosensitive sec12-4 mutant partially restores growth and protein transport at non-permissive temperatures. Lipidomics analyses of these cells show a higher content of lysophosphatidylinositol (lysoPI), consistent with the lipid specificity of PLB3. Furthermore, we show that lysoPI is specifically enriched in COPII vesicles isolated from in vitro budding assays. As these results suggested that lysophospholipids could facilitate budding under conditions of defective COPII coat dynamics, we reconstituted COPII binding onto giant liposomes with purified proteins and showed that lysoPI decreases membrane rigidity and enhances COPII recruitment to liposomes. Our results support a mechanical facilitation of COPII budding by lysophospholipids. COPII mutant sec12-4 is rescued by the overexpression of an ER resident phospholipase Lipidomic analysis of COPII vesicles shows enrichment in lysophospholipids Recruitment of COPII proteins to liposomes increases in presence of lysophospholipids Lysophosphatidylinositol lowers the rigidity of membranes in vitro
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Affiliation(s)
- Alejandro Melero
- Department of Biochemistry, University of Geneva, 1211 Geneva, Switzerland; Swiss National Centre for Competence in Research in Chemical Biology, 1211 Geneva, Switzerland
| | | | - Takefumi Karashima
- Department of Bioresource Science and Technology, Hiroshima University, Hiroshima 739-8528, Japan
| | - Isabelle Riezman
- Department of Biochemistry, University of Geneva, 1211 Geneva, Switzerland
| | - Kouichi Funato
- Department of Bioresource Science and Technology, Hiroshima University, Hiroshima 739-8528, Japan
| | - Charles Barlowe
- Department of Biochemistry, Geisel School of Medicine at Dartmouth, Hanover, NH 03755-3844, USA
| | - Howard Riezman
- Department of Biochemistry, University of Geneva, 1211 Geneva, Switzerland; Swiss National Centre for Competence in Research in Chemical Biology, 1211 Geneva, Switzerland.
| | - Aurélien Roux
- Department of Biochemistry, University of Geneva, 1211 Geneva, Switzerland; Swiss National Centre for Competence in Research in Chemical Biology, 1211 Geneva, Switzerland.
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Takechi-Haraya Y, Sakai-Kato K, Goda Y. Membrane Rigidity Determined by Atomic Force Microscopy Is a Parameter of the Permeability of Liposomal Membranes to the Hydrophilic Compound Calcein. AAPS PharmSciTech 2017; 18:1887-1893. [PMID: 27645470 DOI: 10.1208/s12249-016-0624-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 08/29/2016] [Indexed: 01/01/2023] Open
Abstract
We determined the permeability coefficient of a model hydrophilic drug, calcein, encapsulated within saturated lipid-based nano-sized liposomes of various lipid profiles. We demonstrated that the addition of cholesterol to liposomes containing saturated lipids increased the permeability of the liposomal membrane to calcein via a decrease in the membrane bending modulus, as determined by means of atomic force microscopy. We found an inverse correlation between the membrane bending modulus of saturated lipid-based nano-sized liposomes and the permeability coefficient of encapsulated calcein, demonstrating that bending modulus, as determined by means of atomic force microscopy, is a quantitative parameter describing the permeability of liposomal membranes to calcein.
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Takechi-Haraya Y, Goda Y, Sakai-Kato K. Control of Liposomal Penetration into Three-Dimensional Multicellular Tumor Spheroids by Modulating Liposomal Membrane Rigidity. Mol Pharm 2017; 14:2158-2165. [PMID: 28410440 DOI: 10.1021/acs.molpharmaceut.7b00051] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Effective penetration of drug-carrying nanoparticles into solid tumors is a major challenge in cancer therapy. Exploration of the physicochemical properties of nanoparticles that affect penetration efficiency is required to achieve maximum therapeutic effects. Here, we used confocal laser scanning microscopy to evaluate the efficiencies of penetration of fluorescently labeled liposomes into three-dimensional spheroids composed of HeLa cells. The prepared liposomes were composed of phosphatidylcholines and varying contents of cholesterol and/or a polyethylene glycol-modified phospholipid. We demonstrated that the efficiency of penetration into spheroids increased with the bending modulus (i.e., membrane rigidity) of the liposome, as determined by atomic force microscopy (correlation coefficient, 0.84). To clarify the mechanism by which membrane rigidity contributes to the penetration behavior of liposomes, we also analyzed the cellular uptake using monolayer cells. We showed that penetration efficiency was explained partially by cellular uptake efficiency, but that other factors such as liposome diffusion efficiency in the intercellular space of tumor spheroids contributed. Our results quantitatively demonstrate that the bending modulus of the liposomal membrane is a major determinant of liposomal penetration into three-dimensional spheroids. The present study will contribute to the understanding and control of tumor penetration of liposomal formulations.
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Affiliation(s)
- Yuki Takechi-Haraya
- Division of Drugs, National Institute of Health Sciences , 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Yukihiro Goda
- Division of Drugs, National Institute of Health Sciences , 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
| | - Kumiko Sakai-Kato
- Division of Drugs, National Institute of Health Sciences , 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
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Widomska J, Raguz M, Subczynski WK. Oxygen permeability of the lipid bilayer membrane made of calf lens lipids. Biochim Biophys Acta 2007; 1768:2635-45. [PMID: 17662231 PMCID: PMC2093700 DOI: 10.1016/j.bbamem.2007.06.018] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2007] [Revised: 06/14/2007] [Accepted: 06/18/2007] [Indexed: 11/15/2022]
Abstract
The oxygen permeability coefficient across the membrane made of the total lipid extract from the plasma membrane of calf lens was estimated from the profile of the oxygen transport parameter (local oxygen diffusion-concentration product) and compared with those estimated for membranes made of an equimolar 1-palmitoyl-2-oleoylphosphatidylcholine/cholesterol (POPC/Chol) mixture and of pure POPC. Profiles of the oxygen transport parameter were obtained by observing the collision of molecular oxygen with nitroxide radical spin labels placed at different depths in the membrane using the saturation-recovery EPR technique and were published by us earlier (J. Widomska, M. Raguz, J. Dillon, E. R. Gaillard, W. K. Subczynski, Biochim. Biophys. Acta. 1768 (2007) 1454-1465). At 35 degrees C, the estimated oxygen permeability coefficients were 51.3, 49.7, and 157.4 cm/s for lens lipid, POPC/Chol, and POPC membranes, respectively (compared with 53.3 cm/s for a water layer with the same thickness as a membrane). Membrane permeability significantly decreases at lower temperatures. In the lens lipid membrane, resistance to the oxygen transport is located in and near the polar headgroup region of the membrane to the depth of the ninth carbon, which is approximately where the steroid-ring structure of cholesterol reaches into the membrane. In the central region of the membrane, oxygen transport is enhanced, significantly exceeding that in bulk water. It is concluded that the high level of cholesterol in lens lipids is responsible for these unique membrane properties.
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Affiliation(s)
- Justyna Widomska
- Department of Biophysics, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA
| | - Marija Raguz
- Department of Biophysics, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA
| | - Witold K. Subczynski
- Department of Biophysics, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA
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