1
|
Al-Shammari AM, Salman MI. Antimetastatic and antitumor activities of oncolytic NDV AMHA1 in a 3D culture model of breast cancer. Front Mol Biosci 2024; 11:1331369. [PMID: 39281317 PMCID: PMC11392722 DOI: 10.3389/fmolb.2024.1331369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 07/29/2024] [Indexed: 09/18/2024] Open
Abstract
Introduction Newcastle disease virus (NDV) AMHA1 is capable of killing cancer cells by direct replication or induction of apoptosis alongside other pathways. In this study, we report the potent antimetastatic and anticancer activities of NDV AMHA1 in a 3D spheroid model of breast cancer metastasis. Methods we used two breast cancer cell lines AMJ13 and MCF7 in our metastasis model system. Results First, we showed that NDV AMHA1 can infect and kill breast cancer cells in proliferating adherent cells and tumor spheroids using different virus doses and studying virus replication kinetics. We showed that NDV can infect and spread within the spheroids that represent metastasis before and after reattachment. Furthermore, we evaluated the ability of NDV to induce apoptosis in cancer spheroids and by virus tracking showed that NDV infection is essential for the elimination of these metastasis spheroids. Discussion The mechanism by which NDV induces cell killing in the metastasis model is the induction of caspase-3 and P21 and inhibition of Ki67 in cancer cells, but not in normal cells. In conclusion, these results indicate that NDV AMHA1 has the ability to kill breast cancer metastases in suspension or attached, and this is a novel finding of NDV AMHA1 being a possibly efficient therapy against human metastatic breast cancer.
Collapse
Affiliation(s)
- Ahmed Majeed Al-Shammari
- Experimental Therapy Department, Iraqi Center for Cancer and Medical Genetic Research, Mustansiriyah University, Baghdad, Iraq
| | - Marwa Ibrahim Salman
- Department of Biotechnology, College of Science, University of Baghdad, Baghdad, Iraq
| |
Collapse
|
2
|
Kim J, Förster R, Wieduwilt T, Jang B, Bürger J, Gargiulo J, de S Menezes L, Rossner C, Fery A, Maier SA, Schmidt MA. Locally Structured On-Chip Optofluidic Hollow-Core Light Cages for Single Nanoparticle Tracking. ACS Sens 2022; 7:2951-2959. [PMID: 36260351 DOI: 10.1021/acssensors.2c00988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Nanoparticle tracking analysis (NTA) is a widely used methodology to investigate nanoscale systems at the single species level. Here, we introduce the locally structured on-chip optofluidic hollow-core light cage, as a novel platform for waveguide-assisted NTA. This hollow waveguide guides light by the antiresonant effect in a sparse array of dielectric strands and includes a local modification to realize aberration-free tracking of individual nano-objects, defining a novel on-chip solution with properties specifically tailored for NTA. The key features of our system are (i) well-controlled nano-object illumination through the waveguide mode, (ii) diffraction-limited and aberration-free imaging at the observation site, and (iii) a high level of integration, achieved by on-chip interfacing to fibers. The present study covers all aspects relevant for NTA including design, simulation, implementation via 3D nanoprinting, and optical characterization. The capabilities of the approach to precisely characterize practically relevant nanosystems have been demonstrated by measuring the solvency-induced collapse of a nanoparticle system which includes polymer brush-based shells that react to changes in the liquid environment. Our study unlocks the advantages of the light cage approach in the context of NTA, suggesting its application in various areas such as bioanalytics, life science, environmental science, or nanoscale material science in general.
Collapse
Affiliation(s)
- Jisoo Kim
- Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745Jena, Germany.,Abbe Center of Photonics and Faculty of Physics, Friedrich-Schiller-University Jena, Max-Wien-Platz 1, 07743Jena, Germany
| | - Ronny Förster
- Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745Jena, Germany
| | - Torsten Wieduwilt
- Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745Jena, Germany
| | - Bumjoon Jang
- Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745Jena, Germany.,Abbe Center of Photonics and Faculty of Physics, Friedrich-Schiller-University Jena, Max-Wien-Platz 1, 07743Jena, Germany
| | - Johannes Bürger
- Chair in Hybrid Nanosystems, Nano Institute Munich, Ludwig-Maximilians-Universität Munich, 80799Munich, Germany
| | - Julian Gargiulo
- Chair in Hybrid Nanosystems, Nano Institute Munich, Ludwig-Maximilians-Universität Munich, 80799Munich, Germany
| | - Leonardo de S Menezes
- Chair in Hybrid Nanosystems, Nano Institute Munich, Ludwig-Maximilians-Universität Munich, 80799Munich, Germany.,Departamento de Física, Universidade Federal de Pernambuco, 50670-901Recife-PE, Brazil
| | - Christian Rossner
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069Dresden, Germany
| | - Andreas Fery
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069Dresden, Germany
| | - Stefan A Maier
- Chair in Hybrid Nanosystems, Nano Institute Munich, Ludwig-Maximilians-Universität Munich, 80799Munich, Germany.,The Blackett Laboratory, Department of Physics, Imperial College London, LondonSW7 2AZ, United Kingdom.,School of Physics and Astronomy, Monash University, Clayton, Victoria3800, Australia
| | - Markus A Schmidt
- Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745Jena, Germany.,Abbe Center of Photonics and Faculty of Physics, Friedrich-Schiller-University Jena, Max-Wien-Platz 1, 07743Jena, Germany.,Otto Schott Institute of Materials Research (OSIM), Friedrich Schiller University Jena, Fraunhoferstr. 6, 07743Jena, Germany
| |
Collapse
|
3
|
Salman MI, Al-Shammari AM, Emran MA. 3-Dimensional coculture of breast cancer cell lines with adipose tissue–Derived stem cells reveals the efficiency of oncolytic Newcastle disease virus infection via labeling technology. Front Mol Biosci 2022; 9:754100. [PMID: 36172043 PMCID: PMC9511405 DOI: 10.3389/fmolb.2022.754100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 08/16/2022] [Indexed: 11/30/2022] Open
Abstract
Oncolytic virotherapy is one of the emerging biological therapeutics that needs a more efficient in vitro tumor model to overcome the two-dimensional (2D) monolayer tumor cell culture model’s inability to maintain tissue-specific structure. This is to offer significant prognostic preclinical assessment findings. One of the best models that can mimic the in vivo model in vitro are the three-dimensional (3D) tumor–normal cell coculture systems, which can be employed in preclinical oncolytic virus therapeutics. Thus, we developed our 3D coculture system in vitro using two types of breast cancer cell lines showing different receptor statuses cocultured with adipose tissue–derived mesenchymal stem cells. The cells were cultured in a floater tissue culture plate to allow spheroids formation, and then the spheroids were collected and transferred to a scaffold spheroids dish. These 3D culture systems were used to evaluate oncolytic Newcastle disease virus AMHA1 strain infectivity and antitumor activity using a tracking system of the Newcastle disease virus (NDV) labeled with fluorescent PKH67 linker to follow the virus entry into target cells. This provides evidence that the NDV AMHA1 strain is an efficient oncolytic agent. The fluorescently detected virus particles showed high intensity in both coculture spheres. Strategies for chemically introducing fluorescent dyes into NDV particles extract quantitative information from the infected cancer models. In conclusion, the results indicate that the NDV AMHA1 strain efficiently replicates and induces an antitumor effect in cancer–normal 3D coculture systems, indicating efficient clinical outcomes.
Collapse
Affiliation(s)
- Marwa Ibrahim Salman
- Department of Biotechnology, College of Science, University of Baghdad, Baghdad, Iraq
| | - Ahmed Majeed Al-Shammari
- Department of Experimental Therapy, Iraqi Center for Cancer and Medical Genetic Research, Mustansiriyah University, Baghdad, Iraq
- *Correspondence: Ahmed Majeed Al-Shammari,
| | - Mahfodha Abbas Emran
- Department of Biotechnology, College of Science, University of Baghdad, Baghdad, Iraq
| |
Collapse
|
4
|
Koehler M, Delguste M, Sieben C, Gillet L, Alsteens D. Initial Step of Virus Entry: Virion Binding to Cell-Surface Glycans. Annu Rev Virol 2020; 7:143-165. [PMID: 32396772 DOI: 10.1146/annurev-virology-122019-070025] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Virus infection is an intricate process that requires the concerted action of both viral and host cell components. Entry of viruses into cells is initiated by interactions between viral proteins and cell-surface receptors. Various cell-surface glycans function as initial, usually low-affinity attachment factors, providing a first anchor of the virus to the cell surface, and further facilitate high-affinity binding to virus-specific cell-surface receptors, while other glycans function as specific entry receptors themselves. It is now possible to rapidly identify specific glycan receptors using different techniques, define atomic-level structures of virus-glycan complexes, and study these interactions at the single-virion level. This review provides a detailed overview of the role of glycans in viral infection and highlights experimental approaches to study virus-glycan binding along with specific examples. In particular, we highlight the development of the atomic force microscope to investigate interactions with glycans at the single-virion level directly on living mammalian cells, which offers new perspectives to better understand virus-glycan interactions in physiologically relevant conditions.
Collapse
Affiliation(s)
- Melanie Koehler
- Louvain Institute of Biomolecular Science and Technology, Université Catholique de Louvain, 1348 Louvain-la-Neuve, Belgium;
| | - Martin Delguste
- Louvain Institute of Biomolecular Science and Technology, Université Catholique de Louvain, 1348 Louvain-la-Neuve, Belgium;
| | - Christian Sieben
- Institute of Physics, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Laurent Gillet
- Immunology-Vaccinology Laboratory, Department of Infectious and Parasitic Diseases, Fundamental and Applied Research for Animals and Health center (FARAH), University of Liège, 4000 Liège, Belgium
| | - David Alsteens
- Louvain Institute of Biomolecular Science and Technology, Université Catholique de Louvain, 1348 Louvain-la-Neuve, Belgium; .,Walloon Excellence in Life sciences and Biotechnology (WELBIO), 1300 Wavre, Belgium
| |
Collapse
|
5
|
Liu SL, Wang ZG, Xie HY, Liu AA, Lamb DC, Pang DW. Single-Virus Tracking: From Imaging Methodologies to Virological Applications. Chem Rev 2020; 120:1936-1979. [PMID: 31951121 PMCID: PMC7075663 DOI: 10.1021/acs.chemrev.9b00692] [Citation(s) in RCA: 114] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
![]()
Uncovering
the mechanisms of virus infection and assembly is crucial
for preventing the spread of viruses and treating viral disease. The
technique of single-virus tracking (SVT), also known as single-virus
tracing, allows one to follow individual viruses at different parts
of their life cycle and thereby provides dynamic insights into fundamental
processes of viruses occurring in live cells. SVT is typically based
on fluorescence imaging and reveals insights into previously unreported
infection mechanisms. In this review article, we provide the readers
a broad overview of the SVT technique. We first summarize recent advances
in SVT, from the choice of fluorescent labels and labeling strategies
to imaging implementation and analytical methodologies. We then describe
representative applications in detail to elucidate how SVT serves
as a valuable tool in virological research. Finally, we present our
perspectives regarding the future possibilities and challenges of
SVT.
Collapse
Affiliation(s)
- Shu-Lin Liu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine , Nankai University , Tianjin 300071 , P. R. China.,Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry , China University of Geosciences , Wuhan 430074 , P. R. China
| | - Zhi-Gang Wang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine , Nankai University , Tianjin 300071 , P. R. China
| | - Hai-Yan Xie
- School of Life Science , Beijing Institute of Technology , Beijing 100081 , P. R. China
| | - An-An Liu
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine , Nankai University , Tianjin 300071 , P. R. China
| | - Don C Lamb
- Physical Chemistry, Department of Chemistry, Center for Nanoscience (CeNS), and Center for Integrated Protein Science Munich (CIPSM) and Nanosystems Initiative Munich (NIM) , Ludwig-Maximilians-Universität , München , 81377 , Germany
| | - Dai-Wen Pang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Center for Analytical Sciences, College of Chemistry, and School of Medicine , Nankai University , Tianjin 300071 , P. R. China.,College of Chemistry and Molecular Sciences, State Key Laboratory of Virology, The Institute for Advanced Studies, and Wuhan Institute of Biotechnology , Wuhan University , Wuhan 430072 , P. R. China
| |
Collapse
|
6
|
TIM-1 As a Signal Receptor Triggers Dengue Virus-Induced Autophagy. Int J Mol Sci 2019; 20:ijms20194893. [PMID: 31581681 PMCID: PMC6801812 DOI: 10.3390/ijms20194893] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 09/29/2019] [Accepted: 09/29/2019] [Indexed: 12/22/2022] Open
Abstract
Dengue virus (DENV) infection triggers the activation of autophagy to facilitate the viral replication cycle from various aspects. Although a number of stimulators are proposed to activate autophagy, none of them appears prior to the uncoating process. Given that T-cell immunoglobulin and mucin domain 1 (TIM-1) receptor is a putative DENV receptor and promotes apoptotic body clearance by autophagy induction, it raises the possibility that TIM-1 may participate in the activation of DENV-induced autophagy. In this study, confocal images first revealed the co-localization of TIM-1 with autophagosomes in DENV-induced autophagy rather than rapamycin-induced autophagy, suggesting the co-transportation of TIM-1 with DENV during infection. The treatment of siRNA to knockdown TIM-1 expression in DENV-infected GFP-microtubule-associated protein light chain 3 (LC3)-Huh7.5 cells revealed that TIM-1 is required not only for DENV cellular internalization but also for autophagy activation. Furthermore, knockdown p85, a subunit of phosphoinositide 3-kinases (PI3Ks), which is co-localized with TIM-1 at rab5-positive endosomes caused the reduction of autophagy, indicating that TIM-1-mediated DENV-induced autophagy requires p85. Taken together, the current study uncovered TIM-1 as a novel factor for triggering autophagy in DENV infection through TIM-1-p85 axis, in addition to serving as a DENV receptor.
Collapse
|
7
|
Hoffmann AB, Mazelier M, Léger P, Lozach PY. Deciphering Virus Entry with Fluorescently Labeled Viral Particles. Methods Mol Biol 2019; 1836:159-183. [PMID: 30151573 DOI: 10.1007/978-1-4939-8678-1_8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
To infect host cells, viruses have to gain access to the intracellular compartment. The infection process starts with the attachment of viruses to the cell surface. Then a complex series of events, highly dynamic, tightly intricate, and often hard to investigate, follows. This includes virus displacement at the plasma membrane, binding to receptors, signaling, internalization, and release of the viral genome and material into the cytosol. In the past decades, the emergence of sensitive, accurate fluorescence-based technologies has opened new perspectives of investigations in the field. Visualization of single viral particles in fixed and living cells as well as quantification of each virus entry step has been made possible. Here we describe the procedure to fluorescently label viral particles. We also illustrate how to use this powerful tool to decipher the entry of viruses with the most recent fluorescence-based techniques such as high-speed confocal and total internal reflection microscopy, flow cytometry, and fluorimetry.
Collapse
Affiliation(s)
- Anja B Hoffmann
- From CellNetworks Cluster of Excellence and Department of Infectious Diseases, Virology, University Hospital Heidelberg, Heidelberg, Germany
| | - Magalie Mazelier
- From CellNetworks Cluster of Excellence and Department of Infectious Diseases, Virology, University Hospital Heidelberg, Heidelberg, Germany
| | - Psylvia Léger
- From CellNetworks Cluster of Excellence and Department of Infectious Diseases, Virology, University Hospital Heidelberg, Heidelberg, Germany
| | - Pierre-Yves Lozach
- From CellNetworks Cluster of Excellence and Department of Infectious Diseases, Virology, University Hospital Heidelberg, Heidelberg, Germany.
| |
Collapse
|
8
|
Nathan L, Daniel S. Single Virion Tracking Microscopy for the Study of Virus Entry Processes in Live Cells and Biomimetic Platforms. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1215:13-43. [PMID: 31317494 PMCID: PMC7122913 DOI: 10.1007/978-3-030-14741-9_2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The most widely-used assays for studying viral entry, including infectivity, cofloatation, and cell-cell fusion assays, yield functional information but provide low resolution of individual entry steps. Structural characterization provides high-resolution conformational information, but on its own is unable to address the functional significance of these conformations. Single virion tracking microscopy techniques provide more detail on the intermediate entry steps than infection assays and more functional information than structural methods, bridging the gap between these methods. In addition, single virion approaches also provide dynamic information about the kinetics of entry processes. This chapter reviews single virion tracking techniques and describes how they can be applied to study specific virus entry steps. These techniques provide information complementary to traditional ensemble approaches. Single virion techniques may either probe virion behavior in live cells or in biomimetic platforms. Synthesizing information from ensemble, structural, and single virion techniques ultimately yields a more complete understanding of the viral entry process than can be achieved by any single method alone.
Collapse
Affiliation(s)
- Lakshmi Nathan
- Robert Frederick Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY, USA.
| | - Susan Daniel
- Robert Frederick Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY, USA.
| |
Collapse
|
9
|
Blaum BS, Neu U, Peters T, Stehle T. Spin ballet for sweet encounters: saturation-transfer difference NMR and X-ray crystallography complement each other in the elucidation of protein-glycan interactions. Acta Crystallogr F Struct Biol Commun 2018; 74:451-462. [PMID: 30084394 PMCID: PMC6096479 DOI: 10.1107/s2053230x18006581] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 04/28/2018] [Indexed: 03/11/2023] Open
Abstract
Biomolecular NMR spectroscopy has limitations in the determination of protein structures: an inherent size limit and the requirement for expensive and potentially difficult isotope labelling pose considerable hurdles. Therefore, structural analysis of larger proteins is almost exclusively performed by crystallography. However, the diversity of biological NMR applications outperforms that of any other structural biology technique. For the characterization of transient complexes formed by proteins and small ligands, notably oligosaccharides, one NMR technique has recently proven to be particularly powerful: saturation-transfer difference NMR (STD-NMR) spectroscopy. STD-NMR experiments are fast and simple to set up, with no general protein size limit and no requirement for isotope labelling. The method performs best in the moderate-to-low affinity range that is of interest in most of glycobiology. With small amounts of unlabelled protein, STD-NMR experiments can identify hits from mixtures of potential ligands, characterize mutant proteins and pinpoint binding epitopes on the ligand side. STD-NMR can thus be employed to complement and improve protein-ligand complex models obtained by other structural biology techniques or by purely computational means. With a set of protein-glycan interactions from our own work, this review provides an introduction to the technique for structural biologists. It exemplifies how crystallography and STD-NMR can be combined to elucidate protein-glycan (and other protein-ligand) interactions in atomic detail, and how the technique can extend structural biology from simplified systems amenable to crystallization to more complex biological entities such as membranes, live viruses or entire cells.
Collapse
Affiliation(s)
- Bärbel S. Blaum
- Interfaculty Institute of Biochemistry, University of Tübingen, 72076 Tübingen, Germany
| | - Ursula Neu
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, 14424 Potsdam, Germany
| | - Thomas Peters
- Institute of Chemistry and Metabolomics, University of Lübeck, 23562 Lübeck, Germany
| | - Thilo Stehle
- Interfaculty Institute of Biochemistry, University of Tübingen, 72076 Tübingen, Germany
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| |
Collapse
|
10
|
Imaging, Tracking and Computational Analyses of Virus Entry and Egress with the Cytoskeleton. Viruses 2018; 10:v10040166. [PMID: 29614729 PMCID: PMC5923460 DOI: 10.3390/v10040166] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 03/27/2018] [Accepted: 03/28/2018] [Indexed: 12/27/2022] Open
Abstract
Viruses have a dual nature: particles are “passive substances” lacking chemical energy transformation, whereas infected cells are “active substances” turning-over energy. How passive viral substances convert to active substances, comprising viral replication and assembly compartments has been of intense interest to virologists, cell and molecular biologists and immunologists. Infection starts with virus entry into a susceptible cell and delivers the viral genome to the replication site. This is a multi-step process, and involves the cytoskeleton and associated motor proteins. Likewise, the egress of progeny virus particles from the replication site to the extracellular space is enhanced by the cytoskeleton and associated motor proteins. This overcomes the limitation of thermal diffusion, and transports virions and virion components, often in association with cellular organelles. This review explores how the analysis of viral trajectories informs about mechanisms of infection. We discuss the methodology enabling researchers to visualize single virions in cells by fluorescence imaging and tracking. Virus visualization and tracking are increasingly enhanced by computational analyses of virus trajectories as well as in silico modeling. Combined approaches reveal previously unrecognized features of virus-infected cells. Using select examples of complementary methodology, we highlight the role of actin filaments and microtubules, and their associated motors in virus infections. In-depth studies of single virion dynamics at high temporal and spatial resolutions thereby provide deep insight into virus infection processes, and are a basis for uncovering underlying mechanisms of how cells function.
Collapse
|
11
|
Pärnaste L, Arukuusk P, Zagato E, Braeckmans K, Langel Ü. Methods to follow intracellular trafficking of cell-penetrating peptides. J Drug Target 2015; 24:508-19. [DOI: 10.3109/1061186x.2015.1095194] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Ly Pärnaste
- Laboratory of Molecular Biotechnology, Institute of Technology, University of Tartu, Tartu, Estonia,
| | - Piret Arukuusk
- Laboratory of Molecular Biotechnology, Institute of Technology, University of Tartu, Tartu, Estonia,
| | - Elisa Zagato
- Laboratory for General Biochemistry and Physical Pharmacy, Ghent, University, Gent, Belgium, and
| | - Kevin Braeckmans
- Laboratory for General Biochemistry and Physical Pharmacy, Ghent, University, Gent, Belgium, and
| | - Ülo Langel
- Laboratory of Molecular Biotechnology, Institute of Technology, University of Tartu, Tartu, Estonia,
- Department of Neurochemistry, The Arrhenius Laboratories for Natural Sciences, Stockholm University, Stockholm, Sweden
| |
Collapse
|
12
|
Samperio Ventayol P, Schelhaas M. Fluorescently Labeled Human Papillomavirus Pseudovirions for Use in Virus Entry Experiments. ACTA ACUST UNITED AC 2015; 37:14B.4.1-22. [DOI: 10.1002/9780471729259.mc14b04s37] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Pilar Samperio Ventayol
- Emmy‐Noether Group, Virus Endocytosis’, Institutes of Molecular Virology and Medical Biochemistry, ZMBE, University of Münster Münster Germany
| | - Mario Schelhaas
- Emmy‐Noether Group, Virus Endocytosis’, Institutes of Molecular Virology and Medical Biochemistry, ZMBE, University of Münster Münster Germany
| |
Collapse
|
13
|
Burkard C, Bloyet LM, Wicht O, van Kuppeveld FJ, Rottier PJM, de Haan CAM, Bosch BJ. Dissecting virus entry: replication-independent analysis of virus binding, internalization, and penetration using minimal complementation of β-galactosidase. PLoS One 2014; 9:e101762. [PMID: 25025332 PMCID: PMC4099126 DOI: 10.1371/journal.pone.0101762] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Accepted: 06/10/2014] [Indexed: 12/21/2022] Open
Abstract
Studies of viral entry into host cells often rely on the detection of post-entry parameters, such as viral replication or the expression of a reporter gene, rather than on measuring entry per se. The lack of assays to easily detect the different steps of entry severely hampers the analysis of this key process in virus infection. Here we describe novel, highly adaptable viral entry assays making use of minimal complementation of the E. coli β-galactosidase in mammalian cells. Enzyme activity is reconstituted when a small intravirion peptide (α-peptide) is complementing the inactive mutant form ΔM15 of β-galactosidase. The method allows to dissect and to independently detect binding, internalization, and fusion of viruses during host cell entry. Here we use it to confirm and extend current knowledge on the entry process of two enveloped viruses: vesicular stomatitis virus (VSV) and murine hepatitis coronavirus (MHV).
Collapse
Affiliation(s)
- Christine Burkard
- Virology Division, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Louis-Marie Bloyet
- Virology Division, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Oliver Wicht
- Virology Division, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Frank J. van Kuppeveld
- Virology Division, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Peter J. M. Rottier
- Virology Division, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Cornelis A. M. de Haan
- Virology Division, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Berend Jan Bosch
- Virology Division, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| |
Collapse
|
14
|
Ueda R, Sugiura T, Kume S, Ichikawa A, Larsen S, Miyoshi H, Hiramatsu H, Nagatsuka Y, Arai F, Suzuki Y, Hirabayashi Y, Fukuda T, Honda A. A novel single virus infection system reveals that influenza virus preferentially infects cells in g1 phase. PLoS One 2013; 8:e67011. [PMID: 23874406 PMCID: PMC3715512 DOI: 10.1371/journal.pone.0067011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Accepted: 05/14/2013] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Influenza virus attaches to sialic acid residues on the surface of host cells via the hemagglutinin (HA), a glycoprotein expressed on the viral envelope, and enters into the cytoplasm by receptor-mediated endocytosis. The viral genome is released and transported in to the nucleus, where transcription and replication take place. However, cellular factors affecting the influenza virus infection such as the cell cycle remain uncharacterized. METHODS/RESULTS To resolve the influence of cell cycle on influenza virus infection, we performed a single-virus infection analysis using optical tweezers. Using this newly developed single-virus infection system, the fluorescence-labeled influenza virus was trapped on a microchip using a laser (1064 nm) at 0.6 W, transported, and released onto individual H292 human lung epithelial cells. Interestingly, the influenza virus attached selectively to cells in the G1-phase. To clarify the molecular differences between cells in G1- and S/G2/M-phase, we performed several physical and chemical assays. Results indicated that: 1) the membranes of cells in G1-phase contained greater amounts of sialic acids (glycoproteins) than the membranes of cells in S/G2/M-phase; 2) the membrane stiffness of cells in S/G2/M-phase is more rigid than those in G1-phase by measurement using optical tweezers; and 3) S/G2/M-phase cells contained higher content of Gb3, Gb4 and GlcCer than G1-phase cells by an assay for lipid composition. CONCLUSIONS A novel single-virus infection system was developed to characterize the difference in influenza virus susceptibility between G1- and S/G2/M-phase cells. Differences in virus binding specificity were associated with alterations in the lipid composition, sialic acid content, and membrane stiffness. This single-virus infection system will be useful for studying the infection mechanisms of other viruses.
Collapse
Affiliation(s)
- Ryuta Ueda
- Department of Frontier Bioscience, Hosei University, Koganei, Tokyo, Japan
| | - Tadao Sugiura
- Department for Information Science, Nara Institute of Science and Technology, Ikoma, Nara, Japan
| | - Shinichiro Kume
- Department of Frontier Bioscience, Hosei University, Koganei, Tokyo, Japan
| | - Akihiko Ichikawa
- Department of Micro-Nano Systems Engineering, Nagoya University, Nagoya, Aichi, Japan
| | - Steven Larsen
- Department of Frontier Bioscience, Hosei University, Koganei, Tokyo, Japan
| | - Hideaki Miyoshi
- Department for Information Science, Nara Institute of Science and Technology, Ikoma, Nara, Japan
| | - Hiroaki Hiramatsu
- Department of Biomedical Science, Chubu University, Kasugai, Aichi, Japan
| | - Yasuko Nagatsuka
- Laboratory for Molecular Membrane Neuroscience, RIKEN, Wako, Saitama, Japan
| | - Fumihito Arai
- Department of Micro-Nano Systems Engineering, Nagoya University, Nagoya, Aichi, Japan
| | - Yasuo Suzuki
- Department of Biomedical Science, Chubu University, Kasugai, Aichi, Japan
| | - Yoshio Hirabayashi
- Laboratory for Molecular Membrane Neuroscience, RIKEN, Wako, Saitama, Japan
| | - Toshio Fukuda
- Department of Engineering, Nagoya University, Nagoya, Aichi, Japan
| | - Ayae Honda
- Department of Frontier Bioscience, Hosei University, Koganei, Tokyo, Japan
| |
Collapse
|
15
|
Sun E, He J, Zhuang X. Live cell imaging of viral entry. Curr Opin Virol 2013; 3:34-43. [PMID: 23395264 PMCID: PMC3587724 DOI: 10.1016/j.coviro.2013.01.005] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Revised: 12/14/2012] [Accepted: 01/21/2013] [Indexed: 12/17/2022]
Abstract
Viral entry encompasses the initial steps of infection starting from virion host cell attachment to viral genome release. Given the dynamic interactions between the virus and the host, many questions related to viral entry can be directly addressed by live cell imaging. Recent advances in fluorescent labeling of viral and cellular components, fluorescence microscopy with high sensitivity and spatiotemporal resolution, and image analysis enabled studies of a broad spectrum across many viral entry steps, including virus-receptor interactions, internalization, intracellular transport, genomic release, nuclear transport, and cell-to-cell transmission. Collectively, these live cell imaging studies have not only enriched our understandings of the viral entry mechanisms, but also provided novel insights into basic cellular biology processes.
Collapse
Affiliation(s)
- Eileen Sun
- Program in Virology, Harvard Medical School, Boston, MA 02115, United States
| | | | | |
Collapse
|