1
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Wang MS, Hu Y, Sanchez EE, Xie X, Roy NH, de Jesus M, Winer BY, Zale EA, Jin W, Sachar C, Lee JH, Hong Y, Kim M, Kam LC, Salaita K, Huse M. Author Correction: Mechanically active integrins target lytic secretion at the immune synapse to facilitate cellular cytotoxicity. Nat Commun 2023; 14:8401. [PMID: 38110360 PMCID: PMC10728169 DOI: 10.1038/s41467-023-44258-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023] Open
Affiliation(s)
- Mitchell S Wang
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Pharmacology Program, Weill-Cornell Graduate School of Medical Sciences, New York, NY, USA
| | - Yuesong Hu
- Department of Chemistry, Emory University, Atlanta, GA, USA
| | - Elisa E Sanchez
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Biochemistry and Molecular Biology Program, Weill-Cornell Graduate School of Medical Sciences, New York, NY, USA
| | - Xihe Xie
- Neuroscience Program, Weill-Cornell Graduate School of Medical Sciences, New York, NY, USA
| | - Nathan H Roy
- Department of Microbiology and Immunology, State University of New York Upstate Medical University, Syracuse, NY, USA
| | - Miguel de Jesus
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Benjamin Y Winer
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Elizabeth A Zale
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Weiyang Jin
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Chirag Sachar
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Joanne H Lee
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Yeonsun Hong
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY, USA
| | - Minsoo Kim
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY, USA
| | - Lance C Kam
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Khalid Salaita
- Department of Chemistry, Emory University, Atlanta, GA, USA
| | - Morgan Huse
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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2
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Waldran MJ, Wegman AD, Bahr LE, Roy NH, Currier JR, Waickman AT. Soluble NS1 antagonizes IgG- and IgA-mediated monocytic phagocytosis of DENV infected cells. J Infect Dis 2023:7143708. [PMID: 37103221 DOI: 10.1093/infdis/jiad122] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 04/20/2023] [Accepted: 04/24/2023] [Indexed: 04/28/2023] Open
Abstract
Dengue virus (DENV) is endemic in over 100 countries, infecting an estimated 400 million individuals every year. Infection with DENV raises an antibody response primarily targeting viral structural proteins. However, DENV encodes several immunogenic non-structural (NS) proteins, one of which, NS1, is expressed on the membrane of DENV-infected cells. IgG and IgA isotype antibodies that bind NS1 are abundant in serum following DENV infection. Our study aims to determine if NS1-binding IgG and IgA isotype antibodies contribute to the clearance of DENV-infected cells by antibody-mediated cellular phagocytosis. We observed that both IgG and IgA isotype antibodies can facilitate monocytic uptake of DENV NS1 expressing cells in a FcγRI and FcαRI dependent fashion. Interestingly, this process was antagonized by the presence of soluble NS1, suggesting that the production of soluble NS1 by infected cells may serve as immunological chaff, antagonizing opsonization and clearance of DENV infected cells.
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Affiliation(s)
- Mitchell J Waldran
- Department of Microbiology and Immunology, State University of New York Upstate Medical University, Syracuse, NY, USA
| | - Adam D Wegman
- Department of Microbiology and Immunology, State University of New York Upstate Medical University, Syracuse, NY, USA
| | - Lauren E Bahr
- Department of Microbiology and Immunology, State University of New York Upstate Medical University, Syracuse, NY, USA
| | - Nathan H Roy
- Department of Microbiology and Immunology, State University of New York Upstate Medical University, Syracuse, NY, USA
| | - Jeffrey R Currier
- Viral Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, Maryland, United States of America
| | - Adam T Waickman
- Department of Microbiology and Immunology, State University of New York Upstate Medical University, Syracuse, NY, USA
- Institute for Global Health and Translational Sciences, State University of New York Upstate Medical University, Syracuse, NY, USA
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3
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Pritchard GH, Phan AT, Christian DA, Blain TJ, Fang Q, Johnson J, Roy NH, Shallberg L, Kedl RM, Hunter CA. Early T-bet promotes LFA1 upregulation required for CD8+ effector and memory T cell development. J Exp Med 2023; 220:e20191287. [PMID: 36445307 PMCID: PMC9712775 DOI: 10.1084/jem.20191287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/29/2022] [Accepted: 11/10/2022] [Indexed: 12/03/2022] Open
Abstract
The T-box transcription factor T-bet is regarded as a "master regulator" of CD4+ Th1 differentiation and IFN-γ production. However, in multiple models of infection, T-bet appears less critical for CD8+ T cell expansion and effector function. Here, we show that following vaccination with a replication-deficient strain of Toxoplasma gondii, CD8+ T cell expression of T-bet is required for optimal expansion of parasite-specific effector CD8+ T cells. Analysis of the early events associated with T cell activation reveals that the α chain of LFA1, CD11a, is a target of T-bet, and T-bet is necessary for CD8+ T cell upregulation of this integrin, which influences the initial priming of CD8+ effector T cells. We propose that the early expression of T-bet represents a T cell-intrinsic factor that optimizes T-DC interactions necessary to generate effector responses.
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Affiliation(s)
- Gretchen Harms Pritchard
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA
| | - Anthony T. Phan
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA
| | - David A. Christian
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA
| | - Trevor J. Blain
- Department of Immunology and Microbiology, School of Medicine, University of Colorado Denver, Aurora, CO
| | - Qun Fang
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA
| | - John Johnson
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA
| | - Nathan H. Roy
- Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia Research Institute and Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA
| | - Lindsey Shallberg
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA
| | - Ross M. Kedl
- Department of Immunology and Microbiology, School of Medicine, University of Colorado Denver, Aurora, CO
| | - Christopher A. Hunter
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA
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4
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Wang MS, Hu Y, Sanchez EE, Xie X, Roy NH, de Jesus M, Winer BY, Zale EA, Jin W, Sachar C, Lee JH, Hong Y, Kim M, Kam LC, Salaita K, Huse M. Mechanically active integrins target lytic secretion at the immune synapse to facilitate cellular cytotoxicity. Nat Commun 2022; 13:3222. [PMID: 35680882 PMCID: PMC9184626 DOI: 10.1038/s41467-022-30809-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [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: 09/27/2021] [Accepted: 05/19/2022] [Indexed: 01/25/2023] Open
Abstract
Cytotoxic lymphocytes fight pathogens and cancer by forming immune synapses with infected or transformed target cells and then secreting cytotoxic perforin and granzyme into the synaptic space, with potent and specific killing achieved by this focused delivery. The mechanisms that establish the precise location of secretory events, however, remain poorly understood. Here we use single cell biophysical measurements, micropatterning, and functional assays to demonstrate that localized mechanotransduction helps define the position of secretory events within the synapse. Ligand-bound integrins, predominantly the αLβ2 isoform LFA-1, function as spatial cues to attract lytic granules containing perforin and granzyme and induce their fusion with the plasma membrane for content release. LFA-1 is subjected to pulling forces within secretory domains, and disruption of these forces via depletion of the adaptor molecule talin abrogates cytotoxicity. We thus conclude that lymphocytes employ an integrin-dependent mechanical checkpoint to enhance their cytotoxic power and fidelity.
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Affiliation(s)
- Mitchell S Wang
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Pharmacology Program, Weill-Cornell Graduate School of Medical Sciences, New York, NY, USA
| | - Yuesong Hu
- Department of Chemistry, Emory University, Atlanta, GA, USA
| | - Elisa E Sanchez
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Biochemistry and Molecular Biology Program, Weill-Cornell Graduate School of Medical Sciences, New York, NY, USA
| | - Xihe Xie
- Neuroscience Program, Weill-Cornell Graduate School of Medical Sciences, New York, NY, USA
| | - Nathan H Roy
- Department of Microbiology and Immunology, State University of New York Upstate Medical University, Syracuse, NY, USA
| | - Miguel de Jesus
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Benjamin Y Winer
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Elizabeth A Zale
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Weiyang Jin
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Chirag Sachar
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Joanne H Lee
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Yeonsun Hong
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY, USA
| | - Minsoo Kim
- Department of Microbiology and Immunology, University of Rochester Medical Center, Rochester, NY, USA
| | - Lance C Kam
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Khalid Salaita
- Department of Chemistry, Emory University, Atlanta, GA, USA
| | - Morgan Huse
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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5
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Ershov D, Phan MS, Pylvänäinen JW, Rigaud SU, Le Blanc L, Charles-Orszag A, Conway JRW, Laine RF, Roy NH, Bonazzi D, Duménil G, Jacquemet G, Tinevez JY. TrackMate 7: integrating state-of-the-art segmentation algorithms into tracking pipelines. Nat Methods 2022; 19:829-832. [PMID: 35654950 DOI: 10.1038/s41592-022-01507-1] [Citation(s) in RCA: 159] [Impact Index Per Article: 79.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 04/25/2022] [Indexed: 11/09/2022]
Abstract
TrackMate is an automated tracking software used to analyze bioimages and is distributed as a Fiji plugin. Here, we introduce a new version of TrackMate. TrackMate 7 is built to address the broad spectrum of modern challenges researchers face by integrating state-of-the-art segmentation algorithms into tracking pipelines. We illustrate qualitatively and quantitatively that these new capabilities function effectively across a wide range of bio-imaging experiments.
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Affiliation(s)
- Dmitry Ershov
- Institut Pasteur, Université de Paris Cité, Image Analysis Hub, Paris, France.,Institut Pasteur, Université de Paris Cité, Biostatistics and Bioinformatic Hub, Paris, France
| | - Minh-Son Phan
- Institut Pasteur, Université de Paris Cité, Image Analysis Hub, Paris, France
| | - Joanna W Pylvänäinen
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland.,Åbo Akademi University, Faculty of Science and Engineering, Biosciences, Turku, Finland.,Turku Bioimaging, University of Turku and Åbo Akademi University, Turku, Finland
| | - Stéphane U Rigaud
- Institut Pasteur, Université de Paris Cité, Image Analysis Hub, Paris, France
| | - Laure Le Blanc
- Institut Pasteur, Université Paris Cité, INSERM UMR1225, Pathogenesis of Vascular Infections unit, Paris, France
| | - Arthur Charles-Orszag
- Institut Pasteur, Université Paris Cité, INSERM UMR1225, Pathogenesis of Vascular Infections unit, Paris, France
| | - James R W Conway
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Romain F Laine
- MRC Laboratory for Molecular Cell Biology, University College London, London, UK.,The Francis Crick Institute, London, UK.,Micrographia Bio, Translation and Innovation Hub, London, UK
| | - Nathan H Roy
- Department of Microbiology and Immunology, SUNY Upstate Medical University, Syracuse, NY, USA
| | - Daria Bonazzi
- Institut Pasteur, Université Paris Cité, INSERM UMR1225, Pathogenesis of Vascular Infections unit, Paris, France
| | - Guillaume Duménil
- Institut Pasteur, Université Paris Cité, INSERM UMR1225, Pathogenesis of Vascular Infections unit, Paris, France
| | - Guillaume Jacquemet
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland. .,Åbo Akademi University, Faculty of Science and Engineering, Biosciences, Turku, Finland. .,Turku Bioimaging, University of Turku and Åbo Akademi University, Turku, Finland.
| | - Jean-Yves Tinevez
- Institut Pasteur, Université de Paris Cité, Image Analysis Hub, Paris, France.
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6
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Avery L, Robertson TF, Wu CF, Roy NH, Chauvin SD, Perkey E, Vanderbeck A, Maillard I, Burkhardt JK. A Murine Model of X-Linked Moesin-Associated Immunodeficiency (X-MAID) Reveals Defects in T Cell Homeostasis and Migration. Front Immunol 2022; 12:726406. [PMID: 35069520 PMCID: PMC8770857 DOI: 10.3389/fimmu.2021.726406] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 12/13/2021] [Indexed: 11/25/2022] Open
Abstract
X-linked moesin associated immunodeficiency (X-MAID) is a primary immunodeficiency disease in which patients suffer from profound lymphopenia leading to recurrent infections. The disease is caused by a single point mutation leading to a R171W amino acid change in the protein moesin (moesinR171W). Moesin is a member of the ERM family of proteins, which reversibly link the cortical actin cytoskeleton to the plasma membrane. Here, we describe a novel mouse model with global expression of moesinR171W that recapitulates multiple facets of patient disease, including severe lymphopenia. Further analysis reveals that these mice have diminished numbers of thymocytes and bone marrow precursors. X-MAID mice also exhibit systemic inflammation that is ameliorated by elimination of mature lymphocytes through breeding to a Rag1-deficient background. The few T cells in the periphery of X-MAID mice are highly activated and have mostly lost moesinR171W expression. In contrast, single-positive (SP) thymocytes do not appear activated and retain high expression levels of moesinR171W. Analysis of ex vivo CD4 SP thymocytes reveals defects in chemotactic responses and reduced migration on integrin ligands. While chemokine signaling appears intact, CD4 SP thymocytes from X-MAID mice are unable to polarize and rearrange cytoskeletal elements. This mouse model will be a valuable tool for teasing apart the complexity of the immunodeficiency caused by moesinR171W, and will provide new insights into how the actin cortex regulates lymphocyte function.
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Affiliation(s)
- Lyndsay Avery
- Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia Research Institute, Philadelphia, PA, United States
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Tanner F. Robertson
- Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia Research Institute, Philadelphia, PA, United States
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Christine F. Wu
- Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia Research Institute, Philadelphia, PA, United States
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Nathan H. Roy
- Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia Research Institute, Philadelphia, PA, United States
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Samuel D. Chauvin
- Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia Research Institute, Philadelphia, PA, United States
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Eric Perkey
- Graduate Program in Cellular and Molecular Biology and Medical Scientist Training Program, University of Michigan, Ann Arbor, MI, United States
| | - Ashley Vanderbeck
- Division of Hematology/Oncology, Department of Medicine and Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Ivan Maillard
- Division of Hematology/Oncology, Department of Medicine and Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Janis K. Burkhardt
- Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia Research Institute, Philadelphia, PA, United States
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
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7
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Guérin A, Roy NH, Kugler EM, Berry L, Burkhardt JK, Shin JB, Striepen B. Cryptosporidium rhoptry effector protein ROP1 injected during invasion targets the host cytoskeletal modulator LMO7. Cell Host Microbe 2021; 29:1407-1420.e5. [PMID: 34348092 PMCID: PMC8475647 DOI: 10.1016/j.chom.2021.07.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/19/2021] [Accepted: 07/02/2021] [Indexed: 12/30/2022]
Abstract
The parasite Cryptosporidium invades and replicates in intestinal epithelial cells and is a leading cause of diarrheal disease and early childhood mortality. The molecular mechanisms that underlie infection and pathogenesis are largely unknown. Here, we delineate the events of host cell invasion and uncover a mechanism unique to Cryptosporidium. We developed a screen to identify parasite effectors, finding the injection of multiple parasite proteins into the host from the rhoptry organelle. These factors are targeted to diverse locations within the host cell and its interface with the parasite. One identified effector, rhoptry protein 1 (ROP1), accumulates in the terminal web of enterocytes through direct interaction with the host protein LIM domain only 7 (LMO7) an organizer of epithelial cell polarity and cell-cell adhesion. Genetic ablation of LMO7 or ROP1 in mice or parasites, respectively, impacts parasite burden in vivo in opposite ways. Taken together, these data provide molecular insight into how Cryptosporidium manipulates its intestinal host niche.
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Affiliation(s)
- Amandine Guérin
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Nathan H Roy
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia and University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Emily M Kugler
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Laurence Berry
- LPHI, CNRS, Université de Montpellier, Montpellier 34095, France
| | - Janis K Burkhardt
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia and University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jung-Bum Shin
- Department of Neuroscience, University of Virginia, Charlottesville, VA 22908, USA
| | - Boris Striepen
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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8
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Robertson TF, Chengappa P, Gomez Atria D, Wu CF, Avery L, Roy NH, Maillard I, Petrie RJ, Burkhardt JK. Lymphocyte egress signal sphingosine-1-phosphate promotes ERM-guided, bleb-based migration. J Cell Biol 2021; 220:211919. [PMID: 33764397 PMCID: PMC8006814 DOI: 10.1083/jcb.202007182] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 02/07/2021] [Accepted: 03/03/2021] [Indexed: 02/04/2023] Open
Abstract
Ezrin, radixin, and moesin (ERM) family proteins regulate cytoskeletal responses by tethering the plasma membrane to the underlying actin cortex. Mutations in ERM proteins lead to severe combined immunodeficiency, but the function of these proteins in T cells remains poorly defined. Using mice in which T cells lack all ERM proteins, we demonstrate a selective role for these proteins in facilitating S1P-dependent egress from lymphoid organs. ERM-deficient T cells display defective S1P-induced migration in vitro, despite normal responses to standard protein chemokines. Analysis of these defects revealed that S1P promotes a fundamentally different mode of migration than chemokines, characterized by intracellular pressurization and bleb-based motility. ERM proteins facilitate this process, controlling directional migration by limiting blebbing to the leading edge. We propose that the distinct modes of motility induced by S1P and chemokines are specialized to allow T cell migration across lymphatic barriers and through tissue stroma, respectively.
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Affiliation(s)
- Tanner F Robertson
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia Research Institute, Philadelphia, PA.,Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | | | - Daniela Gomez Atria
- Division of Hematology-Oncology, Department of Medicine, Abramson Family Cancer Research Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - Christine F Wu
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia Research Institute, Philadelphia, PA.,Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Lyndsay Avery
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia Research Institute, Philadelphia, PA.,Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Nathan H Roy
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia Research Institute, Philadelphia, PA.,Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Ivan Maillard
- Division of Hematology-Oncology, Department of Medicine, Abramson Family Cancer Research Institute, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - Ryan J Petrie
- Department of Biology, Drexel University, Philadelphia, PA
| | - Janis K Burkhardt
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia Research Institute, Philadelphia, PA.,Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
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9
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Fazeli E, Roy NH, Follain G, Laine RF, von Chamier L, Hänninen PE, Eriksson JE, Tinevez JY, Jacquemet G. Automated cell tracking using StarDist and TrackMate. F1000Res 2020. [DOI: 10.12688/f1000research.27019.2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The ability of cells to migrate is a fundamental physiological process involved in embryonic development, tissue homeostasis, immune surveillance, and wound healing. Therefore, the mechanisms governing cellular locomotion have been under intense scrutiny over the last 50 years. One of the main tools of this scrutiny is live-cell quantitative imaging, where researchers image cells over time to study their migration and quantitatively analyze their dynamics by tracking them using the recorded images. Despite the availability of computational tools, manual tracking remains widely used among researchers due to the difficulty setting up robust automated cell tracking and large-scale analysis. Here we provide a detailed analysis pipeline illustrating how the deep learning network StarDist can be combined with the popular tracking software TrackMate to perform 2D automated cell tracking and provide fully quantitative readouts. Our proposed protocol is compatible with both fluorescent and widefield images. It only requires freely available and open-source software (ZeroCostDL4Mic and Fiji), and does not require any coding knowledge from the users, making it a versatile and powerful tool for the field. We demonstrate this pipeline's usability by automatically tracking cancer cells and T cells using fluorescent and brightfield images. Importantly, we provide, as supplementary information, a detailed step-by-step protocol to allow researchers to implement it with their images.
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10
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Abstract
The ability of cells to migrate is a fundamental physiological process involved in embryonic development, tissue homeostasis, immune surveillance, and wound healing. Therefore, the mechanisms governing cellular locomotion have been under intense scrutiny over the last 50 years. One of the main tools of this scrutiny is live-cell quantitative imaging, where researchers image cells over time to study their migration and quantitatively analyze their dynamics by tracking them using the recorded images. Despite the availability of computational tools, manual tracking remains widely used among researchers due to the difficulty setting up robust automated cell tracking and large-scale analysis. Here we provide a detailed analysis pipeline illustrating how the deep learning network StarDist can be combined with the popular tracking software TrackMate to perform 2D automated cell tracking and provide fully quantitative readouts. Our proposed protocol is compatible with both fluorescent and widefield images. It only requires freely available and open-source software (ZeroCostDL4Mic and Fiji), and does not require any coding knowledge from the users, making it a versatile and powerful tool for the field. We demonstrate this pipeline's usability by automatically tracking cancer cells and T cells using fluorescent and brightfield images. Importantly, we provide, as supplementary information, a detailed step-by-step protocol to allow researchers to implement it with their images.
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Affiliation(s)
- Elnaz Fazeli
- Laboratory of Biophysics, Institute of Biomedicine, Faculty of Medicine, University of Turku, Turku, Finland
| | - Nathan H. Roy
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia Research Institute, Philadelphia, PA 19104, USA
| | - Gautier Follain
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
- Cell Biology, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
| | - Romain F. Laine
- MRC-Laboratory for Molecular Cell Biology, University College London, London, UK
- The Francis Crick Institute, London, UK
| | - Lucas von Chamier
- MRC-Laboratory for Molecular Cell Biology, University College London, London, UK
| | - Pekka E. Hänninen
- Laboratory of Biophysics, Institute of Biomedicine, Faculty of Medicine, University of Turku, Turku, Finland
| | - John E. Eriksson
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
- Cell Biology, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
| | | | - Guillaume Jacquemet
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
- Cell Biology, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
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11
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Roy NH, Kim SHJ, Buffone A, Blumenthal D, Huang B, Agarwal S, Schwartzberg PL, Hammer DA, Burkhardt JK. LFA-1 signals to promote actin polymerization and upstream migration in T cells. J Cell Sci 2020; 133:jcs248328. [PMID: 32907931 PMCID: PMC7502589 DOI: 10.1242/jcs.248328] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 07/28/2020] [Indexed: 12/29/2022] Open
Abstract
T cell entry into inflamed tissue requires firm adhesion, cell spreading, and migration along and through the endothelial wall. These events require the T cell integrins LFA-1 and VLA-4 and their endothelial ligands ICAM-1 and VCAM-1, respectively. T cells migrate against the direction of shear flow on ICAM-1 and with the direction of shear flow on VCAM-1, suggesting that these two ligands trigger distinct cellular responses. However, the contribution of specific signaling events downstream of LFA-1 and VLA-4 has not been explored. Using primary mouse T cells, we found that engagement of LFA-1, but not VLA-4, induces cell shape changes associated with rapid 2D migration. Moreover, LFA-1 ligation results in activation of the phosphoinositide 3-kinase (PI3K) and ERK pathways, and phosphorylation of multiple kinases and adaptor proteins, whereas VLA-4 ligation triggers only a subset of these signaling events. Importantly, T cells lacking Crk adaptor proteins, key LFA-1 signaling intermediates, or the ubiquitin ligase cCbl (also known as CBL), failed to migrate against the direction of shear flow on ICAM-1. These studies identify novel signaling differences downstream of LFA-1 and VLA-4 that drive T cell migratory behavior.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Nathan H Roy
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia Research Institute, Philadelphia, PA 19104, USA
| | - Sarah Hyun Ji Kim
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Alexander Buffone
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Daniel Blumenthal
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia Research Institute, Philadelphia, PA 19104, USA
| | - Bonnie Huang
- Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892, USA
- National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Sangya Agarwal
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Pamela L Schwartzberg
- Laboratory of Immune System Biology, National Institute of Allergy and Infectious Diseases, Bethesda, MD 20892, USA
- National Human Genome Research Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Daniel A Hammer
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Janis K Burkhardt
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia Research Institute, Philadelphia, PA 19104, USA
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
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12
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Forsyth KS, Roy NH, Peauroi E, DeHaven BC, Wold ED, Hersperger AR, Burkhardt JK, Eisenlohr LC. Ectromelia-encoded virulence factor C15 specifically inhibits antigen presentation to CD4+ T cells post peptide loading. PLoS Pathog 2020; 16:e1008685. [PMID: 32745153 PMCID: PMC7425992 DOI: 10.1371/journal.ppat.1008685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 08/13/2020] [Accepted: 06/06/2020] [Indexed: 01/02/2023] Open
Abstract
Smallpox and monkeypox pose severe threats to human health. Other orthopoxviruses are comparably virulent in their natural hosts, including ectromelia, the cause of mousepox. Disease severity is linked to an array of immunomodulatory proteins including the B22 family, which has homologs in all pathogenic orthopoxviruses but not attenuated vaccine strains. We demonstrate that the ectromelia B22 member, C15, is necessary and sufficient for selective inhibition of CD4+ but not CD8+ T cell activation by immunogenic peptide and superantigen. Inhibition is achieved not by down-regulation of surface MHC- II or co-stimulatory protein surface expression but rather by interference with antigen presentation. The appreciable outcome is interference with CD4+ T cell synapse formation as determined by imaging studies and lipid raft disruption. Consequently, CD4+ T cell activating stimulus shifts to uninfected antigen-presenting cells that have received antigen from infected cells. This work provides insight into the immunomodulatory strategies of orthopoxviruses by elucidating a mechanism for specific targeting of CD4+ T cell activation, reflecting the importance of this cell type in control of the virus.
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Affiliation(s)
- Katherine S. Forsyth
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Nathan H. Roy
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Elise Peauroi
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Brian C. DeHaven
- Department of Biology, La Salle University, Philadelphia, Pennsylvania, United States of America
| | - Erik D. Wold
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Adam R. Hersperger
- Department of Biology, Albright College, Reading, Pennsylvania, United States of America
| | - Janis K. Burkhardt
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
- Children's Hospital of Philadelphia Research Institute, Philadelphia, Pennsylvania, United States of America
| | - Laurence C. Eisenlohr
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
- Children's Hospital of Philadelphia Research Institute, Philadelphia, Pennsylvania, United States of America
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13
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Roy NH, Mammadli M, Burkhardt JK, Karimi M. CrkL is required for donor T cell migration to GvHD target organs. Oncotarget 2020; 11:1505-1514. [PMID: 32391120 PMCID: PMC7197453 DOI: 10.18632/oncotarget.27509] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 01/03/2020] [Accepted: 02/17/2020] [Indexed: 01/21/2023] Open
Abstract
The success of cancer therapies based on allogeneic hematopoietic stem cell transplant relies on the ability to separate graft-versus-host disease (GvHD) from graft-versus-tumor (GVT) responses. Controlling donor T cell migration into peripheral tissues is a viable option to limit unwanted tissue damage, but a lack of specific targets limits progress on this front. Here, we show that the adaptor protein CrkL, but not the closely related family members CrkI or CrkII, is a crucial regulator of T cell migration. In vitro, CrkL-deficient T cells fail to polymerize actin in response to the integrin ligand ICAM-1, resulting in defective migration. Using a mouse model of GvHD/GVT, we found that while CrkL-deficient T cells can efficiently eliminate hematopoietic tumors they are unable to migrate into inflamed organs, such as the liver and small intestine, and thus do not cause GvHD. These results suggest a specific role for CrkL in trafficking to peripheral organs but not the lymphatic system. In line with this, we found that although CrkL-deficient T cells could clear hematopoietic tumors, they failed to clear the same tumor growing subcutaneously, highlighting the role of CrkL in controlling T cell migration into peripheral tissues. Our results define a unique role for CrkL in controlling T cell migration, and suggest that CrkL function could be therapeutically targeted to enhance the efficacy of immunotherapies involving allogeneic donor cells.
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Affiliation(s)
- Nathan H Roy
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia Research Institute and Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Mahinbanu Mammadli
- Department of Microbiology and Immunology, SUNY Upstate Medical University, Syracuse, NY 13210, USA
| | - Janis K Burkhardt
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia Research Institute and Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Mobin Karimi
- Department of Microbiology and Immunology, SUNY Upstate Medical University, Syracuse, NY 13210, USA
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14
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Roy NH, MacKay JL, Buffone A, Newell K, Robertson TF, Agarwal S, Karimi M, Hammer DA, Burkhardt JK. Abstract B183: LFA-1 signals via Crk adapter proteins to induce actin-dependent T-cell migration and mechanosensing. Cancer Immunol Res 2019. [DOI: 10.1158/2326-6074.cricimteatiaacr18-b183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Allogeneic hematopoietic stem cell transplants (HSCT) are used to treat many malignancies, but the prevalence of graft-versus-host disease (GvHD) limits their overall success. Manipulating T-cell trafficking has emerged as an effective countermeasure, yet downstream integrin signaling pathways have yet to be targeted. We previously found that T-cells lacking the adapter proteins Crk and CrkL exhibit a robust antitumor response while causing little GvHD. We now find that T-cells from mice lacking Crk adapter proteins exhibit defects in LFA-1/ICAM-1 induced actin polymerization, leading edge formation, 2D migration, and integrin-mediated mechanosensing. Under shear flow, Crk/CrkL deficient T-cells fail to migrate upstream on ICAM-1 but migrate normally on VCAM-1, suggesting these integrin ligands relay different outside-in signals. Analysis of LFA-1 signaling reveals that Crk protein expression is required for phosphorylation of c-Cbl and its subsequent interaction with the PI3K subunit p85. Through this mechanism, Crk proteins promote PI3K activity and cytoskeletal remodeling downstream of LFA-1 engagement. Interestingly, this signaling pathway was largely specific to the LFA-1/ICAM-1 interaction, as WT-cells plated on VCAM-1 (which binds and signals through VLA-4) failed to induce high levels of phospho-Cbl, showed diminished PI3K activity, and did not migrate with a defined actin-rich leading edge. Finally, we show that knocking out CrkL alone is sufficient to alleviate GvHD, pointing toward unique roles of the Crk isoforms in T-cell biology. Together, these studies identify key signaling differences downstream of β2 vs β1 integrins that drive T-cell migratory behavior, and identify CrkL as an important factor during GvHD. Importantly, these data provide insight into integrin signaling that could be used to manipulate T-cell trafficking.
Citation Format: Nathan H. Roy, Joanna L. MacKay, Alexander Buffone Jr., Krista Newell, Tanner F. Robertson, Sangya Agarwal, Mobin Karimi, Daniel A Hammer, Janis K. Burkhardt. LFA-1 signals via Crk adapter proteins to induce actin-dependent T-cell migration and mechanosensing [abstract]. In: Proceedings of the Fourth CRI-CIMT-EATI-AACR International Cancer Immunotherapy Conference: Translating Science into Survival; Sept 30-Oct 3, 2018; New York, NY. Philadelphia (PA): AACR; Cancer Immunol Res 2019;7(2 Suppl):Abstract nr B183.
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Affiliation(s)
- Nathan H. Roy
- Children's Hospital of Philadelphia, Philadelphia, PA; University of Pennsylvania, Philadelphia, PA; SUNY Upstate Medical University, Syracuse, NY
| | - Joanna L. MacKay
- Children's Hospital of Philadelphia, Philadelphia, PA; University of Pennsylvania, Philadelphia, PA; SUNY Upstate Medical University, Syracuse, NY
| | - Alexander Buffone
- Children's Hospital of Philadelphia, Philadelphia, PA; University of Pennsylvania, Philadelphia, PA; SUNY Upstate Medical University, Syracuse, NY
| | - Krista Newell
- Children's Hospital of Philadelphia, Philadelphia, PA; University of Pennsylvania, Philadelphia, PA; SUNY Upstate Medical University, Syracuse, NY
| | - Tanner F. Robertson
- Children's Hospital of Philadelphia, Philadelphia, PA; University of Pennsylvania, Philadelphia, PA; SUNY Upstate Medical University, Syracuse, NY
| | - Sangya Agarwal
- Children's Hospital of Philadelphia, Philadelphia, PA; University of Pennsylvania, Philadelphia, PA; SUNY Upstate Medical University, Syracuse, NY
| | - Mobin Karimi
- Children's Hospital of Philadelphia, Philadelphia, PA; University of Pennsylvania, Philadelphia, PA; SUNY Upstate Medical University, Syracuse, NY
| | - Daniel A Hammer
- Children's Hospital of Philadelphia, Philadelphia, PA; University of Pennsylvania, Philadelphia, PA; SUNY Upstate Medical University, Syracuse, NY
| | - Janis K. Burkhardt
- Children's Hospital of Philadelphia, Philadelphia, PA; University of Pennsylvania, Philadelphia, PA; SUNY Upstate Medical University, Syracuse, NY
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15
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Roy NH, MacKay JL, Robertson TF, Hammer DA, Burkhardt JK. Crk adaptor proteins mediate actin-dependent T cell migration and mechanosensing induced by the integrin LFA-1. Sci Signal 2018; 11:11/560/eaat3178. [PMID: 30538176 DOI: 10.1126/scisignal.aat3178] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
T cell entry into inflamed tissue involves firm adhesion, spreading, and migration of the T cells across endothelial barriers. These events depend on "outside-in" signals through which engaged integrins direct cytoskeletal reorganization. We investigated the molecular events that mediate this process and found that T cells from mice lacking expression of the adaptor protein Crk exhibited defects in phenotypes induced by the integrin lymphocyte function-associated antigen 1 (LFA-1), namely, actin polymerization, leading edge formation, and two-dimensional cell migration. Crk protein was an essential mediator of LFA-1 signaling-induced phosphorylation of the E3 ubiquitin ligase c-Cbl and its subsequent interaction with the phosphatidylinositol 3-kinase (PI3K) subunit p85, thus promoting PI3K activity and cytoskeletal remodeling. In addition, we found that Crk proteins were required for T cells to respond to changes in substrate stiffness, as measured by alterations in cell spreading and differential phosphorylation of the force-sensitive protein CasL. These findings identify Crk proteins as key intermediates coupling LFA-1 signals to actin remodeling and provide mechanistic insights into how T cells sense and respond to substrate stiffness.
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Affiliation(s)
- Nathan H Roy
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia Research Institute, Philadelphia, PA, USA.,Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Joanna L MacKay
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Tanner F Robertson
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia Research Institute, Philadelphia, PA, USA.,Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Daniel A Hammer
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA.,Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Janis K Burkhardt
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia Research Institute, Philadelphia, PA, USA. .,Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
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16
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Roy NH, Burkhardt JK. The Actin Cytoskeleton: A Mechanical Intermediate for Signal Integration at the Immunological Synapse. Front Cell Dev Biol 2018; 6:116. [PMID: 30283780 PMCID: PMC6156151 DOI: 10.3389/fcell.2018.00116] [Citation(s) in RCA: 36] [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: 07/03/2018] [Accepted: 08/27/2018] [Indexed: 12/22/2022] Open
Abstract
The immunological synapse (IS) is a specialized structure that serves as a platform for cell-cell communication between a T cell and an antigen-presenting cell (APC). Engagement of the T cell receptor (TCR) with cognate peptide-MHC complexes on the APC activates the T cell and instructs its differentiation. Proper T cell activation also requires engagement of additional receptor-ligand pairs, which promote sustained adhesion and deliver costimulatory signals. These events are orchestrated by T cell actin dynamics, which organize IS components and facilitate their signaling. The actin network flows from the edge of the cell inward, driving the centralization of TCR microclusters and providing the force to activate the integrin LFA-1. We recently showed that engagement of LFA-1 slows actin flow, and that this affects TCR signaling. This study highlights the physical nature of the IS, and contributes to a growing appreciation in the field that mechanosensing and mechanotransduction are essential for IS function. Additionally, it is becoming clear that there are multiple types of actin structures at the IS that promote signaling in distinct ways. How the different actin structures contribute to force production and mechanotransduction is just beginning to be explored. In this Perspective, we will feature recent work from our lab and others, that collectively points toward a model in which actin dynamics drive mechanical signaling and receptor crosstalk during T cell activation.
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Affiliation(s)
- Nathan H Roy
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia Research Institute, Philadelphia, PA, United States
| | - Janis K Burkhardt
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia Research Institute, Philadelphia, PA, United States.,Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
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17
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Du J, Flynn R, Paz K, Ren HG, Ogata Y, Zhang Q, Gafken PR, Storer BE, Roy NH, Burkhardt JK, Mathews W, Tolar J, Lee SJ, Blazar BR, Paczesny S. Murine chronic graft-versus-host disease proteome profiling discovers CCL15 as a novel biomarker in patients. Blood 2018; 131:1743-1754. [PMID: 29348127 PMCID: PMC5897867 DOI: 10.1182/blood-2017-08-800623] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Accepted: 01/11/2018] [Indexed: 12/27/2022] Open
Abstract
Improved diagnostic and treatment methods are needed for chronic graft-versus-host disease (cGVHD), the leading cause of late nonrelapse mortality (NRM) in long-term survivors of allogenic hematopoietic cell transplantation. Validated biomarkers that facilitate disease diagnosis and classification generally are lacking in cGVHD. Here, we conducted whole serum proteomics analysis of a well-established murine multiorgan system cGVHD model. We discovered 4 upregulated proteins during cGVHD that are targetable by genetic ablation or blocking antibodies, including the RAS and JUN kinase activator, CRKL, and CXCL7, CCL8, and CCL9 chemokines. Donor T cells lacking CRK/CRKL prevented the generation of cGVHD, germinal center reactions, and macrophage infiltration seen with wild-type T cells. Whereas antibody blockade of CCL8 or CXCL7 was ineffective in treating cGVHD, CCL9 blockade reversed cGVHD clinical manifestations, histopathological changes, and immunopathological hallmarks. Mechanistically, elevated CCL9 expression was present predominantly in vascular smooth muscle cells and uniquely seen in cGVHD mice. Plasma concentrations of CCL15, the human homolog of mouse CCL9, were elevated in a previously published cohort of 211 cGVHD patients compared with controls and associated with NRM. In a cohort of 792 patients, CCL15 measured at day +100 could not predict cGVHD occurring within the next 3 months with clinically relevant sensitivity/specificity. Our findings demonstrate for the first time the utility of preclinical proteomics screening to identify potential new targets for cGVHD and specifically CCL15 as a diagnosis marker for cGVHD. These data warrant prospective biomarker validation studies.
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Affiliation(s)
- Jing Du
- Department of Pediatrics, University of Minnesota, Minneapolis, MN
| | - Ryan Flynn
- Department of Pediatrics, University of Minnesota, Minneapolis, MN
| | - Katelyn Paz
- Department of Pediatrics, University of Minnesota, Minneapolis, MN
| | - Hong-Gang Ren
- Department of Pediatrics and Immunology, Indiana University School of Medicine, Indianapolis, IN
| | | | | | | | - Barry E Storer
- Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA; and
| | - Nathan H Roy
- Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia-Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Janis K Burkhardt
- Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia-Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Wendy Mathews
- Department of Pediatrics, University of Minnesota, Minneapolis, MN
| | - Jakub Tolar
- Department of Pediatrics, University of Minnesota, Minneapolis, MN
| | - Stephanie J Lee
- Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA; and
| | - Bruce R Blazar
- Department of Pediatrics, University of Minnesota, Minneapolis, MN
| | - Sophie Paczesny
- Department of Pediatrics and Immunology, Indiana University School of Medicine, Indianapolis, IN
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Jankowska KI, Williamson EK, Roy NH, Blumenthal D, Chandra V, Baumgart T, Burkhardt JK. Integrins Modulate T Cell Receptor Signaling by Constraining Actin Flow at the Immunological Synapse. Front Immunol 2018; 9:25. [PMID: 29403502 PMCID: PMC5778112 DOI: 10.3389/fimmu.2018.00025] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [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: 09/14/2017] [Accepted: 01/04/2018] [Indexed: 11/25/2022] Open
Abstract
Full T cell activation requires coordination of signals from multiple receptor–ligand pairs that interact in parallel at a specialized cell–cell contact site termed the immunological synapse (IS). Signaling at the IS is intimately associated with actin dynamics; T cell receptor (TCR) engagement induces centripetal flow of the T cell actin network, which in turn enhances the function of ligand-bound integrins by promoting conformational change. Here, we have investigated the effects of integrin engagement on actin flow, and on associated signaling events downstream of the TCR. We show that integrin engagement significantly decelerates centripetal flow of the actin network. In primary CD4+ T cells, engagement of either LFA-1 or VLA-4 by their respective ligands ICAM-1 and VCAM-1 slows actin flow. Slowing is greatest when T cells interact with low mobility integrin ligands, supporting a predominately drag-based mechanism. Using integrin ligands presented on patterned surfaces, we demonstrate that the effects of localized integrin engagement are distributed across the actin network, and that focal adhesion proteins, such as talin, vinculin, and paxillin, are recruited to sites of integrin engagement. Further analysis shows that talin and vinculin are interdependent upon one another for recruitment, and that ongoing actin flow is required. Suppression of vinculin or talin partially relieves integrin-dependent slowing of actin flow, indicating that these proteins serve as molecular clutches that couple engaged integrins to the dynamic actin network. Finally, we found that integrin-dependent slowing of actin flow is associated with reduction in tyrosine phosphorylation downstream of the TCR, and that this modulation of TCR signaling depends on expression of talin and vinculin. More generally, we found that integrin-dependent effects on actin retrograde flow were strongly correlated with effects on TCR signaling. Taken together, these studies support a model in which ligand-bound integrins engage the actin cytoskeletal network via talin and vinculin, and tune TCR signaling events by modulating actin dynamics at the IS.
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Affiliation(s)
- Katarzyna I Jankowska
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia and Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
| | - Edward K Williamson
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia and Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
| | - Nathan H Roy
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia and Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
| | - Daniel Blumenthal
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia and Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
| | - Vidhi Chandra
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia and Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
| | - Tobias Baumgart
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA, United States
| | - Janis K Burkhardt
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia and Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
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Abstract
Cells respond to the mechanical properties of their environment, but how biomechanics contributes to intercellular signaling remains unclear. Reporting in Cell, Basu et al. (2016) showed that forces exerted by cytotoxic T lymphocytes enhance the function of the pore-forming protein perforin, thereby leading to more effective target cell killing.
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Affiliation(s)
- Nathan H Roy
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia Research Institute, Philadelphia, PA 19104, USA; Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Janis K Burkhardt
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia Research Institute, Philadelphia, PA 19104, USA; Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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20
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Huang Y, Clarke F, Karimi M, Roy NH, Williamson EK, Okumura M, Mochizuki K, Chen EJH, Park TJ, Debes GF, Zhang Y, Curran T, Kambayashi T, Burkhardt JK. CRK proteins selectively regulate T cell migration into inflamed tissues. J Clin Invest 2015; 125:1019-32. [PMID: 25621495 DOI: 10.1172/jci77278] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 12/11/2014] [Indexed: 12/12/2022] Open
Abstract
Effector T cell migration into inflamed sites greatly exacerbates tissue destruction and disease severity in inflammatory diseases, including graft-versus-host disease (GVHD). T cell migration into such sites depends heavily on regulated adhesion and migration, but the signaling pathways that coordinate these functions downstream of chemokine receptors are largely unknown. Using conditional knockout mice, we found that T cells lacking the adaptor proteins CRK and CRK-like (CRKL) exhibit reduced integrin-dependent adhesion, chemotaxis, and diapedesis. Moreover, these two closely related proteins exhibited substantial functional redundancy, as ectopic expression of either protein rescued defects in T cells lacking both CRK and CRKL. We determined that CRK proteins coordinate with the RAP guanine nucleotide exchange factor C3G and the adhesion docking molecule CASL to activate the integrin regulatory GTPase RAP1. CRK proteins were required for effector T cell trafficking into sites of inflammation, but not for migration to lymphoid organs. In a murine bone marrow transplantation model, the differential migration of CRK/CRKL-deficient T cells resulted in efficient graft-versus-leukemia responses with minimal GVHD. Together, the results from our studies show that CRK family proteins selectively regulate T cell adhesion and migration at effector sites and suggest that these proteins have potential as therapeutic targets for preventing GVHD.
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21
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Wei Q, Zhang F, Richardson MM, Roy NH, Rodgers W, Liu Y, Zhao W, Fu C, Ding Y, Huang C, Chen Y, Sun Y, Ding L, Hu Y, Ma JX, Boulton ME, Pasula S, Wren JD, Tanaka S, Huang X, Thali M, Hämmerling GJ, Zhang XA. CD82 restrains pathological angiogenesis by altering lipid raft clustering and CD44 trafficking in endothelial cells. Circulation 2014; 130:1493-504. [PMID: 25149363 DOI: 10.1161/circulationaha.114.011096] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Angiogenesis is crucial for many pathological processes and becomes a therapeutic strategy against diseases ranging from inflammation to cancer. The regulatory mechanism of angiogenesis remains unclear. Although tetraspanin CD82 is widely expressed in various endothelial cells (ECs), its vascular function is unknown. METHODS AND RESULTS Angiogenesis was examined in Cd82-null mice with in vivo and ex vivo morphogenesis assays. Cellular functions, molecular interactions, and signaling were analyzed in Cd82-null ECs. Angiogenic responses to various stimuli became markedly increased upon Cd82 ablation. Major changes in Cd82-null ECs were enhanced migration and invasion, likely resulting from the upregulated expression of cell adhesion molecules such as CD44 and integrins at the cell surface and subsequently elevated outside-in signaling. Gangliosides, lipid raft clustering, and CD44-membrane microdomain interactions were increased in the plasma membrane of Cd82-null ECs, leading to less clathrin-independent endocytosis and then more surface presence of CD44. CONCLUSIONS Our study reveals that CD82 restrains pathological angiogenesis by inhibiting EC movement, that lipid raft clustering and cell adhesion molecule trafficking modulate angiogenic potential, that transmembrane protein modulates lipid rafts, and that the perturbation of CD82-ganglioside-CD44 signaling attenuates pathological angiogenesis.
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Affiliation(s)
- Quan Wei
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - Feng Zhang
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - Mekel M Richardson
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - Nathan H Roy
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - William Rodgers
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - Yuechueng Liu
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - Wenyuan Zhao
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - Chenying Fu
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - Yingjun Ding
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - Chao Huang
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - Yuanjian Chen
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - Yao Sun
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - Lexi Ding
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - Yang Hu
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - Jian-Xing Ma
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - Michael E Boulton
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - Satish Pasula
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - Jonathan D Wren
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - Satoshi Tanaka
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - Xiaolin Huang
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - Markus Thali
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - Günter J Hämmerling
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.)
| | - Xin A Zhang
- From the West China Hospital, Sichuan University, Chengdu, China (Q.W.); University of Oklahoma Health Science Center, Oklahoma City (Q.W., F.Z., M.M.R., W.R., Y.L., C.F., Y.D., C.H., L.D., Y.H., J.M., X.A.Z.); University of Vermont, Burlington (N.H.R., M.T.); University of Tennessee, Memphis (W.Z., Y.C., Y.S.); Tongji Hospital, Wuhan, China (Y.D., X.H.); Indiana University, Indianapolis (M.E.B.); Oklahoma Medical Research Foundation, Oklahoma City (S.P., J.D.W.); and German Cancer Research Center, Heidelberg, Germany (S.T., G.J.H.).
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Symeonides M, Lambelé M, Roy NH, Thali M. Evidence showing that tetraspanins inhibit HIV-1-induced cell-cell fusion at a post-hemifusion stage. Viruses 2014; 6:1078-90. [PMID: 24608085 PMCID: PMC3970140 DOI: 10.3390/v6031078] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Revised: 02/14/2014] [Accepted: 02/20/2014] [Indexed: 02/07/2023] Open
Abstract
Human immunodeficiency virus type 1 (HIV-1) transmission takes place primarily through cell-cell contacts known as virological synapses. Formation of these transient adhesions between infected and uninfected cells can lead to transmission of viral particles followed by separation of the cells. Alternatively, the cells can fuse, thus forming a syncytium. Tetraspanins, small scaffolding proteins that are enriched in HIV-1 virions and actively recruited to viral assembly sites, have been found to negatively regulate HIV-1 Env-induced cell-cell fusion. How these transmembrane proteins inhibit membrane fusion, however, is currently not known. As a first step towards elucidating the mechanism of fusion repression by tetraspanins, e.g., CD9 and CD63, we sought to identify the stage of the fusion process during which they operate. Using a chemical epistasis approach, four fusion inhibitors were employed in tandem with CD9 overexpression. Cells overexpressing CD9 were found to be sensitized to inhibitors targeting the pre-hairpin and hemifusion intermediates, while they were desensitized to an inhibitor of the pore expansion stage. Together with the results of a microscopy-based dye transfer assay, which revealed CD9- and CD63-induced hemifusion arrest, our investigations strongly suggest that tetraspanins block HIV-1-induced cell-cell fusion at the transition from hemifusion to pore opening.
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Affiliation(s)
- Menelaos Symeonides
- Graduate Program in Cell and Molecular Biology, University of Vermont, Burlington, VT 05405, USA.
| | - Marie Lambelé
- Department of Microbiology and Molecular Genetics, University of Vermont, Burlington, VT 05405, USA.
| | - Nathan H Roy
- Graduate Program in Cell and Molecular Biology, University of Vermont, Burlington, VT 05405, USA.
| | - Markus Thali
- Graduate Program in Cell and Molecular Biology, University of Vermont, Burlington, VT 05405, USA.
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23
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Abstract
Entamoeba histolytica is a protozoan parasite responsible for invasive intestinal and extraintestinal amebiasis. The pathology of amebiasis is still poorly understood, which can be largely attributed to lack of molecular tools. Here we present the optimization of SNAP-tag technology via codon optimization specific for E. histolytica. The resultant SNAP protein is highly expressed in amebic trophozoites, and shows proper localization when tagged with an endoplasmic reticulum retention signal. We further demonstrate the capabilities of this system using super resolution microscopy, done for the first time in E. histolytica.
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Affiliation(s)
- Adam Sateriale
- University of Vermont Cellular, Molecular, and Biomedical Sciences Program, Burlington, Vermont, United States of America
- University of Vermont Department of Medicine, Burlington, Vermont, United States of America
| | - Nathan H. Roy
- University of Vermont Cellular, Molecular, and Biomedical Sciences Program, Burlington, Vermont, United States of America
- University of Vermont Microbiology and Molecular Genetics, Burlington, Vermont, United States of America
| | - Christopher D. Huston
- University of Vermont Cellular, Molecular, and Biomedical Sciences Program, Burlington, Vermont, United States of America
- University of Vermont Microbiology and Molecular Genetics, Burlington, Vermont, United States of America
- University of Vermont Department of Medicine, Burlington, Vermont, United States of America
- * E-mail:
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Krementsov DN, Rassam P, Margeat E, Roy NH, Schneider-Schaulies J, Milhiet PE, Thali M. HIV-1 Assembly Differentially Alters Dynamics and Partitioning of Tetraspanins and Raft Components. Traffic 2010; 11:1401-14. [DOI: 10.1111/j.1600-0854.2010.01111.x] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Krementsov DN, Weng J, Lambelé M, Roy NH, Thali M. Tetraspanins regulate cell-to-cell transmission of HIV-1. Retrovirology 2009; 6:64. [PMID: 19602278 PMCID: PMC2714829 DOI: 10.1186/1742-4690-6-64] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2009] [Accepted: 07/14/2009] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The presence of the tetraspanins CD9, CD63, CD81 and CD82 at HIV-1 budding sites, at the virological synapse (VS), and their enrichment in HIV-1 virions has been well-documented, but it remained unclear if these proteins play a role in the late phase of the viral replication cycle. Here we used overexpression and knockdown approaches to address this question. RESULTS Neither ablation of CD9, CD63 and/or CD81, nor overexpression of these tetraspanins was found to affect the efficiency of virus release. However, confirming recently reported data, tetraspanin overexpression in virus-producing cells resulted in the release of virions with substantially reduced infectivity. We also investigated the roles of these tetraspanins in cell-to-cell transmission of HIV-1. Overexpression of CD9 and CD63 led to reduced cell-to-cell transmission of this virus. Interestingly, in knockdown experiments we found that ablation of CD63, CD9 and/or CD81 had no effect on cell-free infectivity. However, knockdown of CD81, but not CD9 and CD63, enhanced productive particle transmission to target cells, suggesting additional roles for tetraspanins in the transmission process. Finally, tetraspanins were found to be downregulated in HIV-1-infected T lymphocytes, suggesting that HIV-1 modulates the levels of these proteins in order to maximize the efficiency of its transmission within the host. CONCLUSION Altogether, these results establish an active role of tetraspanins in HIV-1 producer cells.
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Affiliation(s)
- Dimitry N Krementsov
- Department of Microbiology and Molecular Genetics, University of Vermont, Burlington, VT 05405, USA.
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