1
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Nimz JG, Rerkshanandana P, Kloypan C, Kalus U, Chaiwaree S, Pruß A, Georgieva R, Xiong Y, Bäumler H. Recognition mechanisms of hemoglobin particles by monocytes - CD163 may just be one. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2023; 14:1028-1040. [PMID: 37915310 PMCID: PMC10616704 DOI: 10.3762/bjnano.14.85] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 10/10/2023] [Indexed: 11/03/2023]
Abstract
Hemoglobin-based oxygen carriers (HBOCs) as blood substitutes are one of the great hopes of modern transfusion and emergency medicine. After the major safety-relevant challenges of the last decades seem to be largely overcome, current developments have in common that they are affected by degradation and excretion at an early stage in test organisms. Several possible mechanisms that may be responsible for this are discussed in the literature. One of them is CD163, the receptor of the complex of haptoglobin (Hp) and hemoglobin (Hb). The receptor has been shown in various studies to have a direct affinity for Hb in the absence of Hp. Thus, it seems reasonable that CD163 could possibly also bind Hb within HBOCs and cause phagocytosis of the particles. In this work we investigated the role of CD163 in the uptake of our hemoglobin sub-micron particles (HbMPs) in monocytes and additionally screened for alternative ways of particle recognition by monocytes. In our experiments, blockade of CD163 by specific monoclonal antibodies proved to partly inhibit HbMP uptake by monocytes. It appears, however, that several other phagocytosis pathways for HbMPs might exist, independent of CD163 and also Hb.
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Affiliation(s)
- Jonathan-Gabriel Nimz
- Institute of Transfusion Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | | | - Chiraphat Kloypan
- Institute of Transfusion Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Division of Clinical Immunology and Transfusion Sciences, School of Allied Health Sciences, University of Phayao, Phayao 56000, Thailand
| | - Ulrich Kalus
- Institute of Transfusion Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Saranya Chaiwaree
- Institute of Transfusion Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Department of Pharmaceutical Technology and Biotechnology, Faculty of Pharmacy, Payap University, Chiang Mai, Thailand
| | - Axel Pruß
- Institute of Transfusion Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Radostina Georgieva
- Institute of Transfusion Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Department of Medical Physics, Biophysics and Radiology, Medical Faculty, Trakia University, Stara Zagora 6000, Bulgaria
| | - Yu Xiong
- Institute of Transfusion Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Hans Bäumler
- Institute of Transfusion Medicine, Charité-Universitätsmedizin Berlin, Berlin, Germany
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2
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Guan J. A Theoretical Model for Phagocytic Capacity of Phagocytes. ADVANCED THEORY AND SIMULATIONS 2022. [DOI: 10.1002/adts.202200710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jingjiao Guan
- Department of Chemical and Biomedical Engineering FAMU‐FSU College of Engineering Florida State University 2525 Pottsdamer Street Tallahassee FL 32310‐2870 USA
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3
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Pinon L, Ruyssen N, Pineau J, Mesdjian O, Cuvelier D, Chipont A, Allena R, Guerin CL, Asnacios S, Asnacios A, Pierobon P, Fattaccioli J. Phenotyping polarization dynamics of immune cells using a lipid droplet-cell pairing microfluidic platform. CELL REPORTS METHODS 2022; 2:100335. [PMID: 36452873 PMCID: PMC9701611 DOI: 10.1016/j.crmeth.2022.100335] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 09/20/2022] [Accepted: 10/19/2022] [Indexed: 05/12/2023]
Abstract
The immune synapse is the tight contact zone between a lymphocyte and a cell presenting its cognate antigen. This structure serves as a signaling platform and entails a polarization of intracellular components necessary to the immunological function of the cell. While the surface properties of the presenting cell are known to control the formation of the synapse, their impact on polarization has not yet been studied. Using functional lipid droplets as tunable artificial presenting cells combined with a microfluidic pairing device, we simultaneously observe synchronized synapses and dynamically quantify polarization patterns of individual B cells. By assessing how ligand concentration, surface fluidity, and substrate rigidity impact lysosome polarization, we show that its onset and kinetics depend on the local antigen concentration at the synapse and on substrate rigidity. Our experimental system enables a fine phenotyping of monoclonal cell populations based on their synaptic readout.
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Affiliation(s)
- Léa Pinon
- École Normale Supérieure, UMR 8640, Laboratoire PASTEUR, Département de Chimie, PSL Research University, Sorbonne Université, CNRS, 75005 Paris, France
- Institut Curie, U932, Immunology and Cancer, INSERM, 75005 Paris, France
- Institut Pierre-Gilles de Gennes pour la Microfluidique, 75005 Paris, France
| | - Nicolas Ruyssen
- Arts et Métiers Institute of Technology, Université Paris 13, Sorbonne Paris Cité, IBHGC, HESAM Université, 75013 Paris, France
| | - Judith Pineau
- Institut Curie, U932, Immunology and Cancer, INSERM, 75005 Paris, France
| | - Olivier Mesdjian
- École Normale Supérieure, UMR 8640, Laboratoire PASTEUR, Département de Chimie, PSL Research University, Sorbonne Université, CNRS, 75005 Paris, France
- Institut Pierre-Gilles de Gennes pour la Microfluidique, 75005 Paris, France
| | - Damien Cuvelier
- Institut Pierre-Gilles de Gennes pour la Microfluidique, 75005 Paris, France
- Institut Curie, UMR 144, PSL Research University, CNRS, Paris, France
- Sorbonne Université, Faculté des Sciences et Ingénierie, UFR 926 Chemistry, 75005 Paris, France
| | - Anna Chipont
- Institut Curie, Cytometry Platform, 75005 Paris, France
| | - Rachele Allena
- Arts et Métiers Institute of Technology, Université Paris 13, Sorbonne Paris Cité, IBHGC, HESAM Université, 75013 Paris, France
- LJAD, UMR 7351, Université Côte d’Azur, 06100 Nice, France
| | - Coralie L. Guerin
- Institut Curie, Cytometry Platform, 75005 Paris, France
- Université Paris Cité, INSERM, Innovative Therapies in Haemostasis, 75006 Paris, France
| | - Sophie Asnacios
- Université de Paris, CNRS, Laboratoire Matière et Systèmes Complexes, UMR 7057, 75013 Paris, France
- Sorbonne Université, Faculté des Sciences et Ingénierie, UFR 925 Physics, 75005 Paris, France
| | - Atef Asnacios
- Université de Paris, CNRS, Laboratoire Matière et Systèmes Complexes, UMR 7057, 75013 Paris, France
| | - Paolo Pierobon
- Institut Curie, U932, Immunology and Cancer, INSERM, 75005 Paris, France
| | - Jacques Fattaccioli
- École Normale Supérieure, UMR 8640, Laboratoire PASTEUR, Département de Chimie, PSL Research University, Sorbonne Université, CNRS, 75005 Paris, France
- Institut Pierre-Gilles de Gennes pour la Microfluidique, 75005 Paris, France
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4
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Moreno-Mendieta S, Guillén D, Vasquez-Martínez N, Hernández-Pando R, Sánchez S, Rodríguez-Sanoja R. Understanding the Phagocytosis of Particles: the Key for Rational Design of Vaccines and Therapeutics. Pharm Res 2022; 39:1823-1849. [PMID: 35739369 DOI: 10.1007/s11095-022-03301-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 05/23/2022] [Indexed: 12/17/2022]
Abstract
A robust comprehension of phagocytosis is crucial for understanding its importance in innate immunity. A detailed description of the molecular mechanisms that lead to the uptake and clearance of endogenous and exogenous particles has helped elucidate the role of phagocytosis in health and infectious or autoimmune diseases. Furthermore, knowledge about this cellular process is important for the rational design and development of particulate systems for the administration of vaccines or therapeutics. Depending on these specific applications and the required biological responses, particles must be designed to encourage or avoid their phagocytosis and prolong their circulation time. Functionalization with specific polymers or ligands and changes in the size, shape, or surface of particles have important effects on their recognition and internalization by professional and nonprofessional phagocytes and have a major influence on their fate and safety. Here, we review the phagocytosis of particles intended to be used as carrier or delivery systems for vaccines or therapeutics, the cells involved in this process depending on the route of administration, and the strategies employed to obtain the most desirable particles for each application through the manipulation of their physicochemical characteristics. We also offer a view of the challenges and potential opportunities in the field and give some recommendations that we expect will enable the development of improved approaches for the rational design of these systems.
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Affiliation(s)
- Silvia Moreno-Mendieta
- Consejo Nacional de Ciencia y Tecnología (CONACyT), Ciudad de México, Mexico. .,Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), A.P. 70228, Ciudad Universitaria, 04510, Ciudad de México, Mexico.
| | - Daniel Guillén
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), A.P. 70228, Ciudad Universitaria, 04510, Ciudad de México, Mexico
| | - Nathaly Vasquez-Martínez
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), A.P. 70228, Ciudad Universitaria, 04510, Ciudad de México, Mexico.,Doctorado en Ciencias Bioquímicas, Universidad Nacional Autónoma de México (UNAM), A.P. 70228, Ciudad Universitaria, 04510, Ciudad de México, Mexico
| | - Rogelio Hernández-Pando
- Sección de Patología Experimental, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Vasco de Quiroga 15, Delegación Tlalpan, Ciudad de México, Mexico
| | - Sergio Sánchez
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), A.P. 70228, Ciudad Universitaria, 04510, Ciudad de México, Mexico
| | - Romina Rodríguez-Sanoja
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México (UNAM), A.P. 70228, Ciudad Universitaria, 04510, Ciudad de México, Mexico.
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5
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Nanoplastics and Human Health: Hazard Identification and Biointerface. NANOMATERIALS 2022; 12:nano12081298. [PMID: 35458006 PMCID: PMC9026096 DOI: 10.3390/nano12081298] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/03/2022] [Accepted: 04/08/2022] [Indexed: 12/12/2022]
Abstract
Nanoplastics are associated with several risks to the ecology and toxicity to humans. Nanoplastics are synthetic polymers with dimensions ranging from 1 nm to 1 μm. They are directly released to the environment or secondarily derived from plastic disintegration in the environment. Nanoplastics are widely detected in environmental samples and the food chain; therefore, their potentially toxic effects have been widely explored. In the present review, an overview of another two potential sources of nanoplastics, exposure routes to illustrate hazard identification of nanoplastics, cell internalization, and effects on intracellular target organelles are presented. In addition, challenges on the study of nanoplastics and future research areas are summarized. This paper also summarizes some approaches to eliminate or minimize the levels of nanoplastics to ensure environmental safety and improve human health.
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6
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Zak A, Dupré-Crochet S, Hudik E, Babataheri A, Barakat AI, Nüsse O, Husson J. Distinct timing of neutrophil spreading and stiffening during phagocytosis. Biophys J 2022; 121:1381-1394. [PMID: 35318004 PMCID: PMC9072703 DOI: 10.1016/j.bpj.2022.03.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 11/29/2021] [Accepted: 03/17/2022] [Indexed: 11/17/2022] Open
Abstract
Phagocytic cells form the first line of defense in an organism, engulfing microbial pathogens. Phagocytosis involves cell mechanical changes that are not yet well understood. Understanding these mechanical modifications promises to shed light on the immune processes that trigger pathological complications. Previous studies showed that phagocytes undergo a sequence of spreading events around their target followed by an increase in cell tension. Seemingly in contradiction, other studies observed an increase in cell tension concomitant with membrane expansion. Even though phagocytes are viscoelastic, few studies have quantified viscous changes during phagocytosis. It is also unclear whether cell lines behave mechanically similarly to primary neutrophils. We addressed the question of simultaneous versus sequential spreading and mechanical changes during phagocytosis by using immunoglobulin-G-coated 8- and 20-μm-diameter beads as targets. We used a micropipette-based single-cell rheometer to monitor viscoelastic properties during phagocytosis by both neutrophil-like PLB cells and primary human neutrophils. We show that the faster expansion of PLB cells on larger beads is a geometrical effect reflecting a constant advancing speed of the phagocytic cup. Cells become stiffer on 20- than on 8-μm beads, and the relative timing of spreading and stiffening of PLB cells depends on target size: on larger beads, stiffening starts before maximal spreading area is reached but ends after reaching maximal area. On smaller beads, the stiffness begins to increase after cells have engulfed the bead. Similar to PLB cells, primary cells become stiffer on larger beads but start spreading and stiffen faster, and the stiffening begins before the end of spreading on both bead sizes. Our results show that mechanical changes in phagocytes are not a direct consequence of cell spreading and that models of phagocytosis should be amended to account for causes of cell stiffening other than membrane expansion.
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Affiliation(s)
- Alexandra Zak
- LadHyX, CNRS, École polytechnique, Institut Polytechnique de Paris, Palaiseau, France; Institut de Chimie Physique, CNRS UMR 8000, Université Paris-Saclay, Orsay, France
| | - Sophie Dupré-Crochet
- Institut de Chimie Physique, CNRS UMR 8000, Université Paris-Saclay, Orsay, France
| | - Elodie Hudik
- Institut de Chimie Physique, CNRS UMR 8000, Université Paris-Saclay, Orsay, France
| | - Avin Babataheri
- LadHyX, CNRS, École polytechnique, Institut Polytechnique de Paris, Palaiseau, France
| | - Abdul I Barakat
- LadHyX, CNRS, École polytechnique, Institut Polytechnique de Paris, Palaiseau, France
| | - Oliver Nüsse
- Institut de Chimie Physique, CNRS UMR 8000, Université Paris-Saclay, Orsay, France
| | - Julien Husson
- LadHyX, CNRS, École polytechnique, Institut Polytechnique de Paris, Palaiseau, France.
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7
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Single-phagosome imaging reveals that homotypic fusion impairs phagosome degradative function. Biophys J 2022; 121:459-469. [PMID: 34968424 PMCID: PMC8822610 DOI: 10.1016/j.bpj.2021.12.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 12/01/2021] [Accepted: 12/22/2021] [Indexed: 02/03/2023] Open
Abstract
Immune cells degrade internalized pathogens in vesicle compartments called phagosomes. Many intracellular bacteria induce homotypic phagosome fusion to survive in host cells, but the fusion interaction between phagosomes and its consequence for phagosome function have scarcely been studied. Here, we characterize homotypic fusion between phagosomes in macrophages and identify how such interactions impact the degradative capacity of phagosomes. By developing a series of particle sensors for measuring biochemical changes of single phagosomes, we show that phagosomes undergo stable fusion, transient "kiss-and-run" fusion, or both in succession. Super-resolution three-dimensional fluorescence microscopy revealed that stably fused phagosomes are connected by membrane "necks" with submicron-sized fusion pores. Furthermore, we demonstrate that, after stable fusion, phagosomes have leaky membranes and thereby impaired degradative functions. Our findings, based on phagosomes that contain synthetic particles, illustrate that homotypic fusion is not exclusive to phagosomes that encapsulate pathogens, as previously believed. The physical process of homotypic fusion is alone sufficient to perturb the degradative functions of phagosomes.
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8
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Berghoff K, Gross W, Eisentraut M, Kress H. Using blinking optical tweezers to study cell rheology during initial cell-particle contact. Biophys J 2021; 120:3527-3537. [PMID: 34181902 PMCID: PMC8391049 DOI: 10.1016/j.bpj.2021.04.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 04/21/2021] [Accepted: 04/26/2021] [Indexed: 01/01/2023] Open
Abstract
Phagocytosis is an important part of innate immunity and describes the engulfment of bacteria and other extracellular objects on the micrometer scale. The protrusion of the cell membrane around the bacteria during this process is driven by a reorganization of the actin cortex. The process has been studied on the molecular level to great extent during the past decades. However, a deep, fundamental understanding of the mechanics of the process is still lacking, in particular because of a lack of techniques that give access to binding dynamics below the optical resolution limit and cellular viscoelasticity at the same time. In this work, we propose a technique to characterize the mechanical properties of cells in a highly localized manner and apply it to investigate the early stages of phagocytosis. The technique can simultaneously resolve the contact region between a cell and an external object (in our application, a phagocytic target) even below the optical resolution limit. We used immunoglobulin-G-coated microparticles with a size of 2 μm as a model system and attached the particles to the macrophages with holographic optical tweezers. By switching the trap on and off, we were able to measure the rheological properties of the cells in a time-resolved manner during the first few minutes after attachment. The measured viscoelastic cellular response is consistent with power law rheology. The contact radius between particle and cell increased on a timescale of ∼30 s and converged after a few minutes. Although the binding dynamics are not affected by cytochalasin D, we observed an increase of the cellular compliance and a significant fluidization of the cortex after addition of cytochalasin D treatment. Furthermore, we report upper boundaries for the length- and timescale, at which cortical actin has been hypothesized to depolymerize during early phagocytosis.
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Affiliation(s)
- Konrad Berghoff
- Department of Physics, University of Bayreuth, Bayreuth, Germany
| | - Wolfgang Gross
- Department of Physics, University of Bayreuth, Bayreuth, Germany
| | | | - Holger Kress
- Department of Physics, University of Bayreuth, Bayreuth, Germany.
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9
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Vorselen D, Labitigan RLD, Theriot JA. A mechanical perspective on phagocytic cup formation. Curr Opin Cell Biol 2020; 66:112-122. [PMID: 32698097 DOI: 10.1016/j.ceb.2020.05.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 05/26/2020] [Accepted: 05/30/2020] [Indexed: 12/23/2022]
Abstract
Phagocytosis is a widespread and evolutionarily conserved process with diverse biological functions, ranging from engulfment of invading microbes during infection to clearance of apoptotic debris in tissue homeostasis. Along with differences in biochemical composition, phagocytic targets greatly differ in physical attributes, such as size, shape, and rigidity, which are now recognized as important regulators of this process. Force exertion at the cell-target interface and cellular mechanical changes during phagocytosis are emerging as crucial factors underlying sensing of such target properties. With technological developments, mechanical aspects of phagocytosis are increasingly accessible experimentally, revealing remarkable organizational complexity of force exertion. An increasingly high-resolution picture is emerging of how target physical cues and cellular mechanical properties jointly govern important steps throughout phagocytic engulfment.
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Affiliation(s)
- Daan Vorselen
- Department of Biology, University of Washington, Seattle, WA 98105, USA
| | - Ramon Lorenzo D Labitigan
- Department of Biology, University of Washington, Seattle, WA 98105, USA; Department of Biochemistry, Stanford University, Stanford, CA 94305, USA
| | - Julie A Theriot
- Department of Biology, University of Washington, Seattle, WA 98105, USA; Howard Hughes Medical Institute, University of Washington, Seattle, WA 98105, USA.
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10
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Rybczynska M, Baudry J, Klaus E. The impact of frost-damage on the quality and quantity of the secreted antigen-specific IgG repertoire. Vaccine 2020; 38:5337-5342. [PMID: 32571724 DOI: 10.1016/j.vaccine.2020.05.066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/19/2020] [Accepted: 05/22/2020] [Indexed: 12/16/2022]
Abstract
Freezing of alum-based vaccines drastically alters their colloidal composition and leads to irreversible cluster formation. The loss of stability is well described, but the impact of frost damage on the functionality of the induced and secreted antibody repertoire has not been studied in detail. We therefore applied our single-cell measurement platform to extract the frequencies of Immunoglobulin G-secreting cells in combination with individual secretion rates and affinities. We showed that, frost-damaged or not, the tested vaccine was able to generate similar frequencies of total and antigen-affine IgG-secreting cells. Additionally, the frost-damaged vaccine stimulated a similar T-cell cytokine secretion pattern when compared to the regularly stored vaccine. However, frost-damaged vaccines induced no efficient affinity maturation and a complete collapse of the affinity distribution was observed. This study unveiled the impact of frost-damage to alum-based vaccines on the induced secreted antibody repertoire, and illustrated the power of functional single-antibody analysis.
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Affiliation(s)
- Magda Rybczynska
- Laboratoire Colloïdes et Matériaux Divisés' (LCMD), ESPCI Paris, PSL Research University, CNRS UMR8231 Chimie Biologie Innovation, F-75005 Paris, France
| | - Jean Baudry
- Laboratoire Colloïdes et Matériaux Divisés' (LCMD), ESPCI Paris, PSL Research University, CNRS UMR8231 Chimie Biologie Innovation, F-75005 Paris, France
| | - Eyer Klaus
- Laboratoire Colloïdes et Matériaux Divisés' (LCMD), ESPCI Paris, PSL Research University, CNRS UMR8231 Chimie Biologie Innovation, F-75005 Paris, France; Laboratory for Functional Immune Repertoire Analysis, Institute of Pharmaceutical Sciences, D-CHAB, ETH Zürich, Zürich, Switzerland.
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11
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Duchemin M, Tudor D, Cottignies-Calamarte A, Bomsel M. Antibody-Dependent Cellular Phagocytosis of HIV-1-Infected Cells Is Efficiently Triggered by IgA Targeting HIV-1 Envelope Subunit gp41. Front Immunol 2020; 11:1141. [PMID: 32582208 PMCID: PMC7296124 DOI: 10.3389/fimmu.2020.01141] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 05/11/2020] [Indexed: 12/25/2022] Open
Abstract
Antibodies mediate a broad array of non-neutralizing Fc-mediated functions against HIV-1 including antibody-dependent cellular cytotoxicity (ADCC) and antibody-dependent cellular phagocytosis (ADCP). Accordingly, ADCC and ADCP induced by anti-HIV envelope gp120 IgG have been correlated to the limited success of the HIV-1 phase III vaccine trial RV144. It remains elusive whether ADCP can also be triggered by IgA, the isotype predominant at mucosal surfaces through which HIV-1 is mainly transmitted. Yet, we have previously shown that the HIV envelope subunit gp41-specific broadly neutralizing antibody 2F5 under the IgA isotype (2F5-IgA) triggers ADCC and cooperates with 2F5-IgG to increase HIV-1-infected cell lysis. Here, we now demonstrate that 2F5-IgA, more efficiently than 2F5-IgG, induces ADCP not only of gp41-coated beads but also of primary HIV-1-infected cells in a FcαRI-dependent manner. Both primary monocytes and neutrophils can act as effector cells of 2F5-IgA-mediated ADCP, although with different kinetics with faster neutrophil phagocytosis. However, unlike for ADCC, 2F5-IgA and 2F5-IgG do not cooperate to increase ADCP. Altogether, our results reveal that gp41-specific IgA mediate the efficient phagocytosis of HIV-1-infected cells. Inducing such ADCC and ADCP-prone IgA response by vaccination in addition to anti-HIV envelope IgG, might increase the protection against HIV acquisition at mucosal level.
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Affiliation(s)
- Maxence Duchemin
- Laboratory of Mucosal Entry of HIV-1 and Mucosal Immunity, Department of Infection, Immunity and Inflammation, Cochin Institute, CNRS UMR 8104, Paris, France.,INSERM U1016, Paris, France.,Université Paris, Paris, France
| | - Daniela Tudor
- Laboratory of Mucosal Entry of HIV-1 and Mucosal Immunity, Department of Infection, Immunity and Inflammation, Cochin Institute, CNRS UMR 8104, Paris, France.,INSERM U1016, Paris, France.,Université Paris, Paris, France
| | - Andréa Cottignies-Calamarte
- Laboratory of Mucosal Entry of HIV-1 and Mucosal Immunity, Department of Infection, Immunity and Inflammation, Cochin Institute, CNRS UMR 8104, Paris, France.,INSERM U1016, Paris, France.,Université Paris, Paris, France
| | - Morgane Bomsel
- Laboratory of Mucosal Entry of HIV-1 and Mucosal Immunity, Department of Infection, Immunity and Inflammation, Cochin Institute, CNRS UMR 8104, Paris, France.,INSERM U1016, Paris, France.,Université Paris, Paris, France
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12
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Dumat B, Montel L, Pinon L, Matton P, Cattiaux L, Fattaccioli J, Mallet JM. Mannose-Coated Fluorescent Lipid Microparticles for Specific Cellular Targeting and Internalization via Glycoreceptor-Induced Phagocytosis. ACS APPLIED BIO MATERIALS 2019; 2:5118-5126. [DOI: 10.1021/acsabm.9b00793] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Blaise Dumat
- Laboratoire des Biomolécules, LBM, Département de Chimie, École Normale Supérieure, CNRS, PSL University, Sorbonne Université, Paris 75005, France
| | - Lorraine Montel
- PASTEUR, Département de Chimie, École Normale Supérieure, CNRS, PSL University, Sorbonne Université, Paris 75005, France
- Institut Pierre-Gilles de Gennes pour la Microfluidique, Paris 75005, France
| | - Léa Pinon
- PASTEUR, Département de Chimie, École Normale Supérieure, CNRS, PSL University, Sorbonne Université, Paris 75005, France
- Institut Pierre-Gilles de Gennes pour la Microfluidique, Paris 75005, France
| | - Pascal Matton
- Laboratoire des Biomolécules, LBM, Département de Chimie, École Normale Supérieure, CNRS, PSL University, Sorbonne Université, Paris 75005, France
| | - Laurent Cattiaux
- Laboratoire des Biomolécules, LBM, Département de Chimie, École Normale Supérieure, CNRS, PSL University, Sorbonne Université, Paris 75005, France
| | - Jacques Fattaccioli
- PASTEUR, Département de Chimie, École Normale Supérieure, CNRS, PSL University, Sorbonne Université, Paris 75005, France
- Institut Pierre-Gilles de Gennes pour la Microfluidique, Paris 75005, France
| | - Jean-Maurice Mallet
- Laboratoire des Biomolécules, LBM, Département de Chimie, École Normale Supérieure, CNRS, PSL University, Sorbonne Université, Paris 75005, France
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