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Indihar DF, Jones JJ, Ochsenbauer C, Kappes JC. Highly Sensitive Analysis of Cervical Mucosal HIV-1 Infection Using Reporter Viruses Expressing Secreted Nanoluciferase. Methods Mol Biol 2024; 2807:299-323. [PMID: 38743237 DOI: 10.1007/978-1-0716-3862-0_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Ex vivo cervical tissue explant models offer a physiologically relevant approach for studying virus-host interactions that underlie mucosal HIV-1 transmission to women. However, the utility of cervical explant tissue (CET) models has been limited for both practical and technical reasons. These include assay variation, inadequate sensitivity for assessing HIV-1 infection and replication in tissue, and constraints imposed by the requirement for using multiple replica samples of CET to test each experimental variable and assay parameter. Here, we describe an experimental approach that employs secreted nanoluciferase (sNLuc) and current HIV-1 reporter virus technologies to overcome certain limitations of earlier ex vivo CET models. This method augments application of the CET model for investigating important questions involving mucosal HIV-1 transmission.
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Affiliation(s)
- Dana F Indihar
- Division of Hematology/Oncology, Department of Medicine, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Jennifer J Jones
- Division of Hematology/Oncology, Department of Medicine, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Christina Ochsenbauer
- Division of Hematology/Oncology, Department of Medicine, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - John C Kappes
- Division of Hematology/Oncology, Department of Medicine, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.
- Birmingham VA Health Care System, Research Service, Birmingham, AL, USA.
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2
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Fernandez N, Hayes P, Makinde J, Hare J, King D, Xu R, Rehawi O, Mezzell AT, Kato L, Mugaba S, Serwanga J, Chemweno J, Nduati E, Price MA, Osier F, Ochsenbauer C, Yue L, Hunter E, Gilmour J. Assessment of a diverse panel of transmitted/founder HIV-1 infectious molecular clones in a luciferase based CD8 T-cell mediated viral inhibition assay. Front Immunol 2022; 13:1029029. [PMID: 36532063 PMCID: PMC9751811 DOI: 10.3389/fimmu.2022.1029029] [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: 08/26/2022] [Accepted: 11/14/2022] [Indexed: 12/03/2022] Open
Abstract
Introduction Immunological protection against human immunodeficiency virus-1 (HIV-1) infection is likely to require both humoral and cell-mediated immune responses, the latter involving cytotoxic CD8 T-cells. Characterisation of CD8 T-cell mediated direct anti-viral activity would provide understanding of potential correlates of immune protection and identification of critical epitopes associated with HIV-1 control. Methods The present report describes a functional viral inhibition assay (VIA) to assess CD8 T-cell-mediated inhibition of replication of a large and diverse panel of 45 HIV-1 infectious molecular clones (IMC) engineered with a Renilla reniformis luciferase reporter gene (LucR), referred to as IMC-LucR. HIV-1 IMC replication in CD4 T-cells and CD8 T-cell mediated inhibition was characterised in both ART naive subjects living with HIV-1 covering a broad human leukocyte antigen (HLA) distribution and compared with uninfected subjects. Results & discussion CD4 and CD8 T-cell lines were established from subjects vaccinated with a candidate HIV-1 vaccine and provided standard positive controls for both assay quality control and facilitating training and technology transfer. The assay was successfully established across 3 clinical research centres in Kenya, Uganda and the United Kingdom and shown to be reproducible. This IMC-LucR VIA enables characterisation of functional CD8 T-cell responses providing a tool for rational T-cell immunogen design of HIV-1 vaccine candidates and evaluation of vaccine-induced T-cell responses in HIV-1 clinical trials.
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Affiliation(s)
- Natalia Fernandez
- IAVI Human Immunology Laboratory, Imperial College, London, United Kingdom,*Correspondence: Natalia Fernandez, ; Peter Hayes,
| | - Peter Hayes
- IAVI Human Immunology Laboratory, Imperial College, London, United Kingdom,*Correspondence: Natalia Fernandez, ; Peter Hayes,
| | - Julia Makinde
- IAVI Human Immunology Laboratory, Imperial College, London, United Kingdom
| | - Jonathan Hare
- IAVI Human Immunology Laboratory, Imperial College, London, United Kingdom,IAVI, New York, NY, United States
| | - Deborah King
- IAVI Human Immunology Laboratory, Imperial College, London, United Kingdom
| | - Rui Xu
- Emory Vaccine Center at Yerkes National Primate Research Center, Emory University, Atlanta, GA, United States
| | - Ola Rehawi
- University of Alabama at Birmingham, Birmingham, AL, United States
| | | | - Laban Kato
- Uganda Virus Research Institute, Entebbe, Uganda,Medical Research Council, Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| | - Susan Mugaba
- Uganda Virus Research Institute, Entebbe, Uganda,Medical Research Council, Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| | - Jennifer Serwanga
- Uganda Virus Research Institute, Entebbe, Uganda,Medical Research Council, Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| | - James Chemweno
- Kenya Medical Research Institute (KEMRI) Wellcome Trust Research Programme, Kilifi, Kenya
| | - Eunice Nduati
- Kenya Medical Research Institute (KEMRI) Wellcome Trust Research Programme, Kilifi, Kenya
| | - Matt A. Price
- IAVI, New York, NY, United States,Department of Epidemiology and Biostatistics, University of California at San Francisco, San Francisco, CA, United States
| | - Faith Osier
- IAVI Human Immunology Laboratory, Imperial College, London, United Kingdom
| | | | - Ling Yue
- Emory Vaccine Center at Yerkes National Primate Research Center, Emory University, Atlanta, GA, United States
| | - Eric Hunter
- Emory Vaccine Center at Yerkes National Primate Research Center, Emory University, Atlanta, GA, United States
| | - Jill Gilmour
- Department of Infectious Diseases, Imperial College, London, United Kingdom
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3
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Wen Y, Xu H, Wan W, Shang W, Jin R, Zhou F, Mei H, Wang J, Xiao G, Chen H, Wu X, Zhang L. Visualizing lymphocytic choriomeningitis virus infection in cells and living mice. iScience 2022; 25:105090. [PMID: 36185356 PMCID: PMC9519613 DOI: 10.1016/j.isci.2022.105090] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 05/31/2022] [Accepted: 09/02/2022] [Indexed: 11/29/2022] Open
Abstract
Mammarenavirus are a large family of enveloped negative-strand RNA viruses that include several agents responsible for severe hemorrhagic fevers. Until now, no FDA-licensed drug has been admitted for treating an arenavirus infection, and only few effective anti-arenavirus drugs have been tested in vivo. In this work, we designed a recombinant reporter arenavirus lymphocytic choriomeningitis virus that stably expressed nanoluciferase (LCMV-Nluc). The LCMV-Nluc was proved to share similar biological properties with wild-type LCMV and the Nluc intensity reliably reflected viral replication both in vitro and in vivo. Replication of the Nluc-encoding virus in living mice can be visualized by real-time bioluminescent imaging, and bioluminescence can be detected in a variety of organs of infected mice. This work provides a novel approach that enables real-time study of the arenavirus infection and is a convenient and valuable tool for screening of compounds that are active against arenaviruses in vitro and in living mice. LCMV-Nluc was constructed and shared similar biological properties with LCMV-WT Replication of the LCMV-Nluc can be visualized by real-time bioluminescent imaging LCMV-Nluc is a valuable tool for screening antiviral compounds in vitro LCMV-Nluc is successfully applied for screening antiviral compounds in vivo
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Affiliation(s)
- Yuxi Wen
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Huan Xu
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Weiwei Wan
- State Key Laboratory of Virology, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan 430071, China
| | - Weijuan Shang
- State Key Laboratory of Virology, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan 430071, China
| | - Runming Jin
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Fen Zhou
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Heng Mei
- Institute of Haematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
- Hubei Clinical and Research Centre of Thrombosis and Haemostasis, Wuhan, China
| | - Jingshi Wang
- Department of Hematology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Gengfu Xiao
- State Key Laboratory of Virology, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongbo Chen
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiaoyan Wu
- Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Leike Zhang
- State Key Laboratory of Virology, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan 430071, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Hubei Jiangxia Laboratory,Wuhan 430000, China
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4
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Olson RM, Gornalusse G, Whitmore LS, Newhouse D, Tisoncik-Go J, Smith E, Ochsenbauer C, Hladik F, Gale M. Innate immune regulation in HIV latency models. Retrovirology 2022; 19:15. [PMID: 35804422 PMCID: PMC9270781 DOI: 10.1186/s12977-022-00599-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 05/25/2022] [Indexed: 01/26/2023] Open
Abstract
BACKGROUND Innate immunity and type 1 interferon (IFN) defenses are critical for early control of HIV infection within CD4 + T cells. Despite these defenses, some acutely infected cells silence viral transcription to become latently infected and form the HIV reservoir in vivo. Latently infected cells persist through antiretroviral therapy (ART) and are a major barrier to HIV cure. Here, we evaluated innate immunity and IFN responses in multiple T cell models of HIV latency, including established latent cell lines, Jurkat cells latently infected with a reporter virus, and a primary CD4 + T cell model of virologic suppression. RESULTS We found that while latently infected T cell lines have functional RNA sensing and IFN signaling pathways, they fail to induce specific interferon-stimulated genes (ISGs) in response to innate immune activation or type 1 IFN treatment. Jurkat cells latently infected with a fluorescent reporter HIV similarly demonstrate attenuated responses to type 1 IFN. Using bulk and single-cell RNA sequencing we applied a functional genomics approach and define ISG expression dynamics in latent HIV infection, including HIV-infected ART-suppressed primary CD4 + T cells. CONCLUSIONS Our observations indicate that HIV latency and viral suppression each link with cell-intrinsic defects in specific ISG induction. We identify a set of ISGs for consideration as latency restriction factors whose expression and function could possibly mitigate establishing latent HIV infection.
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Affiliation(s)
- Rebecca M. Olson
- grid.34477.330000000122986657Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington School of Medicine, Seattle, WA USA
| | - Germán Gornalusse
- grid.270240.30000 0001 2180 1622Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA USA ,grid.34477.330000000122986657Department of Obstetrics & Gynecology, University of Washington, Seattle, WA USA
| | - Leanne S. Whitmore
- grid.34477.330000000122986657Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington School of Medicine, Seattle, WA USA
| | - Dan Newhouse
- grid.34477.330000000122986657Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington School of Medicine, Seattle, WA USA
| | - Jennifer Tisoncik-Go
- grid.34477.330000000122986657Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington School of Medicine, Seattle, WA USA
| | - Elise Smith
- grid.34477.330000000122986657Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington School of Medicine, Seattle, WA USA
| | - Christina Ochsenbauer
- grid.270240.30000 0001 2180 1622Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA USA
| | - Florian Hladik
- grid.270240.30000 0001 2180 1622Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA USA ,grid.34477.330000000122986657Department of Obstetrics & Gynecology, University of Washington, Seattle, WA USA ,grid.34477.330000000122986657Department of Medicine, University of Washington, Seattle, WA USA
| | - Michael Gale
- grid.34477.330000000122986657Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington School of Medicine, Seattle, WA USA
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5
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De Leo TC, Dos Santos SN, Bernardes ES, Cummings RD, Stowell SR, Dias-Baruffi M. Molecular Imaging for In Vivo Tracking and Detection of Galectin Binding Partners. Methods Mol Biol 2022; 2442:339-352. [PMID: 35320534 DOI: 10.1007/978-1-0716-2055-7_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Molecular imaging (MI) is a non-invasive growing technology that allows the investigation of cellular and molecular processes in basic and clinical research and medicine. Luminescent proteins and radionuclides can be associated to target molecules providing high-definition and real-time image of whole body in few minutes or hours. Several MI studies have enabled the determination of molecular partners, in vivo tracking, and fate of compounds in different disorders. Considering that galectins are multifaceted proteins with great impact in many biological events, here we describe methods and strategies to generate labeled galectins for in vivo non-invasive imaging studies.
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Affiliation(s)
- Thais Canassa De Leo
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas da Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brasil
| | - Sofia Nascimento Dos Santos
- Departamento de Radiofarmácia, Instituto de Pesquisas Energéticas e Nucleares, IPEN/CNEN, São Paulo, SP, Brasil
| | - Emerson Soares Bernardes
- Departamento de Radiofarmácia, Instituto de Pesquisas Energéticas e Nucleares, IPEN/CNEN, São Paulo, SP, Brasil
| | | | - Sean R Stowell
- Harvard Glycomics Center, Harvard Medical School, Boston, MA, USA
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Marcelo Dias-Baruffi
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas da Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, São Paulo, Brasil.
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6
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Weichseldorfer M, Affram Y, Heredia A, Rikhtegaran-Tehrani Z, Sajadi MM, Williams SP, Tagaya Y, Benedetti F, Ramadhani HO, Denaro F, Munawwar A, Bryant J, Zella D, Reitz M, Romerio F, Latinovic OS. Combined cART including Tenofovir Disoproxil, Emtricitabine, and Dolutegravir has potent therapeutic effects in HIV-1 infected humanized mice. J Transl Med 2021; 19:453. [PMID: 34717655 PMCID: PMC8557591 DOI: 10.1186/s12967-021-03120-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 10/16/2021] [Indexed: 01/17/2023] Open
Abstract
HIV-1 reservoirs persist in the presence of combined antiretroviral therapy (cART). However, cART has transformed HIV-1 infection into a chronic disease marked by control of HIV-1 viral load and mortality reduction. Major challenges remain, including viral resistance upon termination of cART and persistence and identification of tissue distribution of HIV-1 reservoirs. Thus, appropriate animal models that best mimic HIV-1 pathogenesis are important, and the current study complements our previously published validation of the CD34+ hematopoietic humanized mouse model for this purpose. Here we analyze viral suppression using the recently developed combination of antiretrovirals that include Tenofovir Disoproxil (TDF), Emtricitabine (FTC), and Dolutegravir (DTG), a choice based on recent clinical outcomes showing its improved antiretroviral potency, CD4+ T cell preservation, tolerability, and prevention of viral drug resistance compared to that of previous regimens. We used quantitative Airyscan-based super resolution confocal microscopy of selected mouse tissues. Our data allowed us to identify specific solid tissue reservoirs of human T cells expressing the HIV-1 core protein p24. In particular, lymph node, brain, spleen, and liver were visualized as reservoirs for residual infected cells. Marked reduction of viral replication was evident. Considering that detection and visualization of cryptic sites of HIV-1 infection in tissues are clearly crucial steps towards HIV-1 eradication, appropriate animal models with pseudo-human immune systems are needed. In fact, current studies with humans and non-human primates have limited sample availability at multiple stages of infection and cannot easily analyze the effects of differently administered combined antiretroviral treatments on multiple tissues. That is easier to manage when working with humanized mouse models, although we realize the limitations due to low human cell recovery and thus the number of cells available for thorough and comprehensive analyses. Nonetheless, our data further confirm that the CD34+ humanized mouse model is a potentially useful pre-clinical model to study and improve current anti-HIV-1 therapies.
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Affiliation(s)
- Matthew Weichseldorfer
- Institute of Human Virology, School of Medicine, University of Maryland, Baltimore, MD, 21201, USA
| | - Yvonne Affram
- Institute of Human Virology, School of Medicine, University of Maryland, Baltimore, MD, 21201, USA.,Department of Microbial Pathogenesis and Immunology, University of Texas A and M Health Science Center, Bryan, TX, 77843, USA
| | - Alonso Heredia
- Institute of Human Virology, School of Medicine, University of Maryland, Baltimore, MD, 21201, USA.,Department of Medicine, School of Medicine, University of Maryland, Baltimore, MD, 21201, USA
| | | | - Mohammad M Sajadi
- Institute of Human Virology, School of Medicine, University of Maryland, Baltimore, MD, 21201, USA.,Department of Medicine, School of Medicine, University of Maryland, Baltimore, MD, 21201, USA
| | - Sumiko P Williams
- Institute of Human Virology, School of Medicine, University of Maryland, Baltimore, MD, 21201, USA
| | - Yutaka Tagaya
- Institute of Human Virology, School of Medicine, University of Maryland, Baltimore, MD, 21201, USA.,Department of Medicine, School of Medicine, University of Maryland, Baltimore, MD, 21201, USA
| | - Francesca Benedetti
- Institute of Human Virology, School of Medicine, University of Maryland, Baltimore, MD, 21201, USA.,Department of Biochemistry and Molecular Biology, School of Medicine, University of Maryland, Baltimore, MD, 21201, USA
| | - Habib O Ramadhani
- Institute of Human Virology, School of Medicine, University of Maryland, Baltimore, MD, 21201, USA
| | - Frank Denaro
- Morgan State University, College of Bio Sciences, Baltimore, MD, 21011, USA
| | - Arshi Munawwar
- Institute of Human Virology, School of Medicine, University of Maryland, Baltimore, MD, 21201, USA
| | - Joseph Bryant
- Institute of Human Virology, School of Medicine, University of Maryland, Baltimore, MD, 21201, USA
| | - Davide Zella
- Institute of Human Virology, School of Medicine, University of Maryland, Baltimore, MD, 21201, USA.,Department of Biochemistry and Molecular Biology, School of Medicine, University of Maryland, Baltimore, MD, 21201, USA
| | - Marvin Reitz
- Institute of Human Virology, School of Medicine, University of Maryland, Baltimore, MD, 21201, USA
| | - Fabio Romerio
- Institute of Human Virology, School of Medicine, University of Maryland, Baltimore, MD, 21201, USA.,Department of Medicine, School of Medicine, University of Maryland, Baltimore, MD, 21201, USA.,Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, MD, 21201, USA
| | - Olga S Latinovic
- Institute of Human Virology, School of Medicine, University of Maryland, Baltimore, MD, 21201, USA. .,Department of Microbiology and Immunology, School of Medicine, University of Maryland, Baltimore, MD, 21201, USA.
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7
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Ullah I, Prévost J, Ladinsky MS, Stone H, Lu M, Anand SP, Beaudoin-Bussières G, Symmes K, Benlarbi M, Ding S, Gasser R, Fink C, Chen Y, Tauzin A, Goyette G, Bourassa C, Medjahed H, Mack M, Chung K, Wilen CB, Dekaban GA, Dikeakos JD, Bruce EA, Kaufmann DE, Stamatatos L, McGuire AT, Richard J, Pazgier M, Bjorkman PJ, Mothes W, Finzi A, Kumar P, Uchil PD. Live imaging of SARS-CoV-2 infection in mice reveals that neutralizing antibodies require Fc function for optimal efficacy. Immunity 2021; 54:2143-2158.e15. [PMID: 34453881 PMCID: PMC8372518 DOI: 10.1016/j.immuni.2021.08.015] [Citation(s) in RCA: 125] [Impact Index Per Article: 41.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 06/27/2021] [Accepted: 08/11/2021] [Indexed: 12/29/2022]
Abstract
Neutralizing antibodies (NAbs) are effective in treating COVID-19, but the mechanism of immune protection is not fully understood. Here, we applied live bioluminescence imaging (BLI) to monitor the real-time effects of NAb treatment during prophylaxis and therapy of K18-hACE2 mice intranasally infected with SARS-CoV-2-nanoluciferase. Real-time imaging revealed that the virus spread sequentially from the nasal cavity to the lungs in mice and thereafter systemically to various organs including the brain, culminating in death. Highly potent NAbs from a COVID-19 convalescent subject prevented, and also effectively resolved, established infection when administered within three days. In addition to direct neutralization, depletion studies indicated that Fc effector interactions of NAbs with monocytes, neutrophils, and natural killer cells were required to effectively dampen inflammatory responses and limit immunopathology. Our study highlights that both Fab and Fc effector functions of NAbs are essential for optimal in vivo efficacy against SARS-CoV-2.
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Affiliation(s)
- Irfan Ullah
- Department of Internal Medicine, Section of Infectious Diseases, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Jérémie Prévost
- Centre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada; Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC H2X 0A9, Canada
| | - Mark S Ladinsky
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Helen Stone
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Maolin Lu
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Sai Priya Anand
- Centre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada; Department of Microbiology and Immunology, McGill University, Montreal, QC H3A 2B4, Canada
| | - Guillaume Beaudoin-Bussières
- Centre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada; Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC H2X 0A9, Canada
| | - Kelly Symmes
- Department of Internal Medicine, Section of Infectious Diseases, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Mehdi Benlarbi
- Centre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada
| | - Shilei Ding
- Centre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada
| | - Romain Gasser
- Centre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada; Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC H2X 0A9, Canada
| | - Corby Fink
- Department of Microbiology and Immunology, University of Western Ontario, London, ON N6A 5B7, Canada
| | - Yaozong Chen
- Infectious Disease Division, Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Alexandra Tauzin
- Centre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada; Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC H2X 0A9, Canada
| | | | | | | | - Matthias Mack
- Universitätsklinikum Regensburg, Innere Medizin II - Nephrologie, Regensburg 93042, Germany
| | - Kunho Chung
- Department of Internal Medicine, Section of Infectious Diseases, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Craig B Wilen
- Departments of Laboratory Medicine and Immunobiology, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Gregory A Dekaban
- Department of Microbiology and Immunology, University of Western Ontario, London, ON N6A 5B7, Canada; Molecluar Medicine Research Laboratories, Robarts Research Institute, University of Western Ontario, London, ON N6A 5B7, Canada
| | - Jimmy D Dikeakos
- Department of Microbiology and Immunology, University of Western Ontario, London, ON N6A 5B7, Canada
| | - Emily A Bruce
- Division of Immunobiology, Department of Medicine, Larner College of Medicine, University of Vermont, Burlington, VT 05405. USA
| | - Daniel E Kaufmann
- Centre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada; Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC H2X 0A9, Canada
| | - Leonidas Stamatatos
- Vaccine and Infectious Disease Division, Fred Hutchinson Center, Seattle, WA 98195, USA; Department of Global Health, University of Washington, Seattle, WA 98195, USA
| | - Andrew T McGuire
- Vaccine and Infectious Disease Division, Fred Hutchinson Center, Seattle, WA 98195, USA; Department of Global Health, University of Washington, Seattle, WA 98195, USA; Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA
| | - Jonathan Richard
- Centre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada; Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC H2X 0A9, Canada
| | - Marzena Pazgier
- Infectious Disease Division, Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Pamela J Bjorkman
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Walther Mothes
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT 06510, USA.
| | - Andrés Finzi
- Centre de Recherche du CHUM, Montreal, QC H2X 0A9, Canada; Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC H2X 0A9, Canada; Department of Microbiology and Immunology, McGill University, Montreal, QC H3A 2B4, Canada.
| | - Priti Kumar
- Department of Internal Medicine, Section of Infectious Diseases, Yale University School of Medicine, New Haven, CT 06520, USA.
| | - Pradeep D Uchil
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT 06510, USA.
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8
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Gornalusse GG, Vojtech LN, Levy CN, Hughes SM, Kim Y, Valdez R, Pandey U, Ochsenbauer C, Astronomo R, McElrath J, Hladik F. Buprenorphine Increases HIV-1 Infection In Vitro but Does Not Reactivate HIV-1 from Latency. Viruses 2021; 13:1472. [PMID: 34452338 PMCID: PMC8402857 DOI: 10.3390/v13081472] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 06/28/2021] [Accepted: 07/24/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND medication-assisted treatment (MAT) with buprenorphine is now widely prescribed to treat addiction to heroin and other illicit opioids. There is some evidence that illicit opioids enhance HIV-1 replication and accelerate AIDS pathogenesis, but the effect of buprenorphine is unknown. METHODS we obtained peripheral blood mononuclear cells (PBMCs) from healthy volunteers and cultured them in the presence of morphine, buprenorphine, or methadone. We infected the cells with a replication-competent CCR5-tropic HIV-1 reporter virus encoding a secreted nanoluciferase gene, and measured infection by luciferase activity in the supernatants over time. We also surveyed opioid receptor expression in PBMC, genital epithelial cells and other leukocytes by qPCR and western blotting. Reactivation from latency was assessed in J-Lat 11.1 and U1 cell lines. RESULTS we did not detect expression of classical opioid receptors in leukocytes, but did find nociception/orphanin FQ receptor (NOP) expression in blood and vaginal lymphocytes as well as genital epithelial cells. In PBMCs, we found that at physiological doses, morphine, and methadone had a variable or no effect on HIV infection, but buprenorphine treatment significantly increased HIV-1 infectivity (median: 8.797-fold increase with 20 nM buprenorphine, eight experiments, range: 3.570-691.9, p = 0.0078). Using latently infected cell lines, we did not detect reactivation of latent HIV following treatment with any of the opioid drugs. CONCLUSIONS our results suggest that buprenorphine, in contrast to morphine or methadone, increases the in vitro susceptibility of leukocytes to HIV-1 infection but has no effect on in vitro HIV reactivation. These findings contribute to our understanding how opioids, including those used for MAT, affect HIV infection and reactivation, and can help to inform the choice of MAT for people living with HIV or who are at risk of HIV infection.
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Affiliation(s)
- Germán Gustavo Gornalusse
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (G.G.G.); (L.N.V.); (C.N.L.); (S.M.H.); (Y.K.); (R.V.); (U.P.); (R.A.); (J.M.)
- Departments of Obstetrics and Gynecology, University of Washington, Seattle, WA 98195, USA
| | - Lucia N. Vojtech
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (G.G.G.); (L.N.V.); (C.N.L.); (S.M.H.); (Y.K.); (R.V.); (U.P.); (R.A.); (J.M.)
- Departments of Obstetrics and Gynecology, University of Washington, Seattle, WA 98195, USA
| | - Claire N. Levy
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (G.G.G.); (L.N.V.); (C.N.L.); (S.M.H.); (Y.K.); (R.V.); (U.P.); (R.A.); (J.M.)
- Departments of Obstetrics and Gynecology, University of Washington, Seattle, WA 98195, USA
| | - Sean M. Hughes
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (G.G.G.); (L.N.V.); (C.N.L.); (S.M.H.); (Y.K.); (R.V.); (U.P.); (R.A.); (J.M.)
- Departments of Obstetrics and Gynecology, University of Washington, Seattle, WA 98195, USA
| | - Yeseul Kim
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (G.G.G.); (L.N.V.); (C.N.L.); (S.M.H.); (Y.K.); (R.V.); (U.P.); (R.A.); (J.M.)
- Departments of Obstetrics and Gynecology, University of Washington, Seattle, WA 98195, USA
| | - Rogelio Valdez
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (G.G.G.); (L.N.V.); (C.N.L.); (S.M.H.); (Y.K.); (R.V.); (U.P.); (R.A.); (J.M.)
| | - Urvashi Pandey
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (G.G.G.); (L.N.V.); (C.N.L.); (S.M.H.); (Y.K.); (R.V.); (U.P.); (R.A.); (J.M.)
- Departments of Obstetrics and Gynecology, University of Washington, Seattle, WA 98195, USA
| | - Christina Ochsenbauer
- School of Medicine, Division of Hematology/Oncology, University of Alabama at Birmingham, Birmingham, AL 35233, USA;
| | - Rena Astronomo
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (G.G.G.); (L.N.V.); (C.N.L.); (S.M.H.); (Y.K.); (R.V.); (U.P.); (R.A.); (J.M.)
| | - Julie McElrath
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (G.G.G.); (L.N.V.); (C.N.L.); (S.M.H.); (Y.K.); (R.V.); (U.P.); (R.A.); (J.M.)
- Department of Medicine, University of Washington, Seattle, WA 98195, USA
- Department of Pathobiology, Global Health and Laboratory Medicine, University of Washington, Seattle, WA 98195, USA
| | - Florian Hladik
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; (G.G.G.); (L.N.V.); (C.N.L.); (S.M.H.); (Y.K.); (R.V.); (U.P.); (R.A.); (J.M.)
- Departments of Obstetrics and Gynecology, University of Washington, Seattle, WA 98195, USA
- Department of Medicine, University of Washington, Seattle, WA 98195, USA
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9
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CG dinucleotide removal in bioluminescent and fluorescent reporters improves HIV-1 replication and reporter gene expression for dual imaging in humanized mice. J Virol 2021; 95:e0044921. [PMID: 34232063 PMCID: PMC8428378 DOI: 10.1128/jvi.00449-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Visualizing the transmission and dissemination of human immunodeficiency virus type 1 (HIV-1) in real time in humanized mouse models is a robust tool to investigate viral replication during treatments and in tissue reservoirs. However, the stability and expression of HIV-1 reporter genes are obstacles for long-term serial imaging in vivo. Two replication-competent CCR5-tropic HIV-1 reporter constructs were created that encode either nanoluciferase (nLuc) or a near-infrared fluorescent protein (iRFP) upstream of nef. HIV-1 reporter virus replication and reporter gene expression was measured in cell culture and in humanized mice. While reporter gene expression in vivo correlated initially with plasma viremia, expression decreased after 4 to 5 weeks despite high plasma viremia. The reporter genes were codon optimized to remove cytosine/guanine (CG) dinucleotides, and new CO-nLuc and CO-iRFP viruses were reconstructed. Removal of CG dinucleotides in HIV-1 reporter viruses improved replication in vitro and reporter expression in vivo and ex vivo. Both codon-optimized reporter viruses could be visualized during coinfection and in vivo reporter gene expression during treatment failure preceded detection of plasma viremia. While the dynamic range of CO-iRFP HIV-1 was lower than that of CO-nLuc HIV-1, both viruses could have utility in studying and visualizing HIV-1 infection in humanized mice. IMPORTANCE Animal models are important for studying HIV-1 pathogenesis and treatments. We developed two viruses each encoding a reporter gene that can be expressed in cells after infection. This study shows that HIV-1 infection can be visualized by noninvasive, whole-body imaging in mice with human immune cells over time by reporter expression. We improved reporter expression to reflect HIV-1 replication and showed that two viral variants can be tracked over time in the same animal and can predict failure of antiretroviral therapy to suppress virus.
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10
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Haugh KA, Ladinsky MS, Ullah I, Stone HM, Pi R, Gilardet A, Grunst MW, Kumar P, Bjorkman PJ, Mothes W, Uchil PD. In vivo imaging of retrovirus infection reveals a role for Siglec-1/CD169 in multiple routes of transmission. eLife 2021; 10:64179. [PMID: 34223819 PMCID: PMC8298093 DOI: 10.7554/elife.64179] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 06/15/2021] [Indexed: 12/12/2022] Open
Abstract
Early events in retrovirus transmission are determined by interactions between incoming viruses and frontline cells near entry sites. Despite their importance for retroviral pathogenesis, very little is known about these events. We developed a bioluminescence imaging (BLI)-guided multiscale imaging approach to study these events in vivo. Engineered murine leukemia reporter viruses allowed us to monitor individual stages of retrovirus life cycle including virus particle flow, virus entry into cells, infection and spread for retroorbital, subcutaneous, and oral routes. BLI permitted temporal tracking of orally administered retroviruses along the gastrointestinal tract as they traversed the lumen through Peyer’s patches to reach the draining mesenteric sac. Importantly, capture and acquisition of lymph-, blood-, and milk-borne retroviruses spanning three routes was promoted by a common host factor, the I-type lectin CD169, expressed on sentinel macrophages. These results highlight how retroviruses co-opt the immune surveillance function of tissue-resident sentinel macrophages for establishing infection.
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Affiliation(s)
- Kelsey A Haugh
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, United States
| | - Mark S Ladinsky
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, United States
| | - Irfan Ullah
- Department of Internal Medicine, Section of Infectious Diseases, Yale University School of Medicine, New Haven, United States
| | - Helen M Stone
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, United States
| | - Ruoxi Pi
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, United States
| | - Alexandre Gilardet
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, United States
| | - Michael W Grunst
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, United States
| | - Priti Kumar
- Department of Internal Medicine, Section of Infectious Diseases, Yale University School of Medicine, New Haven, United States
| | - Pamela J Bjorkman
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, United States
| | - Walther Mothes
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, United States
| | - Pradeep D Uchil
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, United States
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11
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Ullah I, Prévost J, Ladinsky MS, Stone H, Lu M, Anand SP, Beaudoin-Bussières G, Symmes K, Benlarbi M, Ding S, Gasser R, Fink C, Chen Y, Tauzin A, Goyette G, Bourassa C, Medjahed H, Mack M, Chung K, Wilen CB, Dekaban GA, Dikeakos JD, Bruce EA, Kaufmann DE, Stamatatos L, McGuire AT, Richard J, Pazgier M, Bjorkman PJ, Mothes W, Finzi A, Kumar P, Uchil PD. Live Imaging of SARS-CoV-2 Infection in Mice Reveals Neutralizing Antibodies Require Fc Function for Optimal Efficacy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2021. [PMID: 33791699 DOI: 10.1101/2021.03.22.436337] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Neutralizing antibodies (NAbs) are effective in treating COVID-19 but the mechanism of immune protection is not fully understood. Here, we applied live bioluminescence imaging (BLI) to monitor the real-time effects of NAb treatment in prophylaxis and therapy of K18-hACE2 mice intranasally infected with SARS-CoV-2-nanoluciferase. We could visualize virus spread sequentially from the nasal cavity to the lungs and thereafter systemically to various organs including the brain, which culminated in death. Highly potent NAbs from a COVID-19 convalescent subject prevented, and also effectively resolved, established infection when administered within three days. In addition to direct Fab-mediated neutralization, Fc effector interactions of NAbs with monocytes, neutrophils and natural killer cells were required to effectively dampen inflammatory responses and limit immunopathology. Our study highlights that both Fab and Fc effector functions of NAbs are essential for optimal in vivo efficacy against SARS-CoV-2.
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12
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Endsley JJ, Huante MB, Naqvi KF, Gelman BB, Endsley MA. Advancing our understanding of HIV co-infections and neurological disease using the humanized mouse. Retrovirology 2021; 18:14. [PMID: 34134725 PMCID: PMC8206883 DOI: 10.1186/s12977-021-00559-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 06/09/2021] [Indexed: 11/15/2022] Open
Abstract
Humanized mice have become an important workhorse model for HIV research. Advances that enabled development of a human immune system in immune deficient mouse strains have aided new basic research in HIV pathogenesis and immune dysfunction. The small animal features facilitate development of clinical interventions that are difficult to study in clinical cohorts, and avoid the high cost and regulatory burdens of using non-human primates. The model also overcomes the host restriction of HIV for human immune cells which limits discovery and translational research related to important co-infections of people living with HIV. In this review we emphasize recent advances in modeling bacterial and viral co-infections in the setting of HIV in humanized mice, especially neurological disease, and Mycobacterium tuberculosis and HIV co-infections. Applications of current and future co-infection models to address important clinical and research questions are further discussed.
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Affiliation(s)
- Janice J Endsley
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA.
| | - Matthew B Huante
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Kubra F Naqvi
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Benjamin B Gelman
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Mark A Endsley
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA.
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13
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Rajashekar JK, Richard J, Beloor J, Prévost J, Anand SP, Beaudoin-Bussières G, Shan L, Herndler-Brandstetter D, Gendron-Lepage G, Medjahed H, Bourassa C, Gaudette F, Ullah I, Symmes K, Peric A, Lindemuth E, Bibollet-Ruche F, Park J, Chen HC, Kaufmann DE, Hahn BH, Sodroski J, Pazgier M, Flavell RA, Smith AB, Finzi A, Kumar P. Modulating HIV-1 envelope glycoprotein conformation to decrease the HIV-1 reservoir. Cell Host Microbe 2021; 29:904-916.e6. [PMID: 34019804 PMCID: PMC8214472 DOI: 10.1016/j.chom.2021.04.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 02/01/2021] [Accepted: 04/20/2021] [Indexed: 11/21/2022]
Abstract
Small CD4-mimetic compounds (CD4mc) sensitize HIV-1-infected cells to antibody-dependent cellular cytotoxicity (ADCC) by facilitating antibody recognition of epitopes that are otherwise occluded on the unliganded viral envelope (Env). Combining CD4mc with two families of CD4-induced (CD4i) antibodies, which are frequently found in plasma of HIV-1-infected individuals, stabilizes Env in a conformation that is vulnerable to ADCC. We employed new-generation SRG-15 humanized mice, supporting natural killer (NK) cell and Fc-effector functions to demonstrate that brief treatment with CD4mc and CD4i-Abs significantly decreases HIV-1 replication, the virus reservoir and viral rebound after ART interruption. These effects required Fc-effector functions and NK cells, highlighting the importance of ADCC. Viral rebound was also suppressed in HIV-1+-donor cell-derived humanized mice supplemented with autologous HIV-1+-donor-derived plasma and CD4mc. These results indicate that CD4mc could have therapeutic utility in infected individuals for decreasing the size of the HIV-1 reservoir and/or achieving a functional cure.
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Affiliation(s)
- Jyothi K Rajashekar
- Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Jonathan Richard
- Centre de Recherche du CHUM, Montreal, QC, Canada; Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, Canada
| | - Jagadish Beloor
- Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Jérémie Prévost
- Centre de Recherche du CHUM, Montreal, QC, Canada; Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, Canada
| | - Sai Priya Anand
- Centre de Recherche du CHUM, Montreal, QC, Canada; Department of Microbiology and Immunology, McGill University Montreal, Montreal, QC, Canada
| | - Guillaume Beaudoin-Bussières
- Centre de Recherche du CHUM, Montreal, QC, Canada; Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, Canada
| | - Liang Shan
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA
| | | | | | | | | | | | - Irfan Ullah
- Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Kelly Symmes
- Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Andrew Peric
- Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Emily Lindemuth
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Frederic Bibollet-Ruche
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Jun Park
- Department of Chemistry, School of Arts and Sciences, University of Pennsylvania, Philadelphia, PA, USA
| | - Hung-Ching Chen
- Department of Chemistry, School of Arts and Sciences, University of Pennsylvania, Philadelphia, PA, USA
| | - Daniel E Kaufmann
- Centre de Recherche du CHUM, Montreal, QC, Canada; Department of Medicine, Université de Montréal, Montreal, QC, Canada
| | - Beatrice H Hahn
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Joseph Sodroski
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, and Department of Microbiology and Immunobiology, Division of AIDS, Harvard Medical School, Boston, MA, USA; Department of Immunology and Infectious Diseases, Harvard School of Public Health, Boston, MA, USA
| | - Marzena Pazgier
- Infectious Diseases Division, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Richard A Flavell
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA.
| | - Amos B Smith
- Department of Chemistry, School of Arts and Sciences, University of Pennsylvania, Philadelphia, PA, USA.
| | - Andrés Finzi
- Centre de Recherche du CHUM, Montreal, QC, Canada; Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, Canada; Department of Microbiology and Immunology, McGill University Montreal, Montreal, QC, Canada.
| | - Priti Kumar
- Section of Infectious Diseases, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA.
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14
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Terahara K, Iwabuchi R, Tsunetsugu-Yokota Y. Perspectives on Non-BLT Humanized Mouse Models for Studying HIV Pathogenesis and Therapy. Viruses 2021; 13:v13050776. [PMID: 33924786 PMCID: PMC8145733 DOI: 10.3390/v13050776] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/23/2021] [Accepted: 04/26/2021] [Indexed: 02/07/2023] Open
Abstract
A variety of humanized mice, which are reconstituted only with human hematopoietic stem cells (HSC) or with fetal thymus and HSCs, have been developed and widely utilized as in vivo animal models of HIV-1 infection. The models represent some aspects of HIV-mediated pathogenesis in humans and are useful for the evaluation of therapeutic regimens. However, there are several limitations in these models, including their incomplete immune responses and poor distribution of human cells to the secondary lymphoid tissues. These limitations are common in many humanized mouse models and are critical issues that need to be addressed. As distinct defects exist in each model, we need to be cautious about the experimental design and interpretation of the outcomes obtained using humanized mice. Considering this point, we mainly characterize the current conventional humanized mouse reconstituted only with HSCs and describe past achievements in this area, as well as the potential contributions of the humanized mouse models for the study of HIV pathogenesis and therapy. We also discuss the use of various technologies to solve the current problems. Humanized mice will contribute not only to the pre-clinical evaluation of anti-HIV regimens, but also to a deeper understanding of basic aspects of HIV biology.
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Affiliation(s)
- Kazutaka Terahara
- Research Center for Drug and Vaccine Development, National Institute of Infectious Diseases, Tokyo 162-8640, Japan; (K.T.); (R.I.)
| | - Ryutaro Iwabuchi
- Research Center for Drug and Vaccine Development, National Institute of Infectious Diseases, Tokyo 162-8640, Japan; (K.T.); (R.I.)
- Department of Life Science and Medical Bioscience, Waseda University, Tokyo 162-8480, Japan
| | - Yasuko Tsunetsugu-Yokota
- Research Center for Drug and Vaccine Development, National Institute of Infectious Diseases, Tokyo 162-8640, Japan; (K.T.); (R.I.)
- Department of Medical Technology, School of Human Sciences, Tokyo University of Technology, Tokyo 144-8535, Japan
- Correspondence: or ; Tel.: +81-3-6424-2223
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15
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Wolf G, Singh NJ. Modular Approaches to Understand the Immunobiology of Human Immunodeficiency Virus Latency. Viral Immunol 2021; 34:365-375. [PMID: 33600238 DOI: 10.1089/vim.2020.0171] [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: 11/12/2022] Open
Abstract
Despite advances in slowing the progression of acquired immunodeficiency syndrome (AIDS), there is no viable cure for human immunodeficiency virus (HIV). The challenge toward a cure is mainly the formation and maintenance of a latent reservoir of cells that harbor the virus in both replication-competent and replication-defective states. This small niche of quiescent cells has been identified to reside primarily in quiescent and memory CD4+ T cells, but parameters that could reliably distinguish an infected T cell from an uninfected one, if any, are not clear. In addition, the migratory properties and specific anatomical reservoirs of latent T cells are difficult to measure at a high resolution in humans. A functional cure of HIV would require targeting this population using innovative new clinical strategies. One constraint toward the empirical development of such approaches is the absence of a native small animal model for AIDS. Since HIV does not efficiently infect murine cells, probing molecular-genetic questions involving latently infected T cells homing to deep tissue sites, interacting with stroma and persisting through different treatment regimens, is challenging. The goal of this article is to discuss how examining the dynamics of T cells in mouse models can provide a framework for effectively studying these questions, even without infecting mice with HIV. The inflammatory and cytokine milieu found in early human HIV infections are being increasingly understood as a result of clinical measurements. Mouse studies that recreate this milieu can potentially be used to subsequently map the fate of T cells activated in this context as well as their migratory routes. In essence, such a framework could allow complementary studies in mice to enhance our understanding of aspects of the biology of HIV latency. This can be the basis of a modular approach to small animal HIV modeling, amenable to preclinical curative strategy development.
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Affiliation(s)
- Gideon Wolf
- Department of Microbiology & Immunology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Nevil J Singh
- Department of Microbiology & Immunology, University of Maryland School of Medicine, Baltimore, Maryland, USA
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16
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Lu M, Uchil PD, Li W, Zheng D, Terry DS, Gorman J, Shi W, Zhang B, Zhou T, Ding S, Gasser R, Prévost J, Beaudoin-Bussières G, Anand SP, Laumaea A, Grover JR, Liu L, Ho DD, Mascola JR, Finzi A, Kwong PD, Blanchard SC, Mothes W. Real-Time Conformational Dynamics of SARS-CoV-2 Spikes on Virus Particles. Cell Host Microbe 2020; 28:880-891.e8. [PMID: 33242391 PMCID: PMC7664471 DOI: 10.1016/j.chom.2020.11.001] [Citation(s) in RCA: 121] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 11/01/2020] [Accepted: 11/05/2020] [Indexed: 12/15/2022]
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike (S) mediates viral entry into cells and is critical for vaccine development against coronavirus disease 2019 (COVID-19). Structural studies have revealed distinct conformations of S, but real-time information that connects these structures is lacking. Here we apply single-molecule fluorescence (Förster) resonance energy transfer (smFRET) imaging to observe conformational dynamics of S on virus particles. Virus-associated S dynamically samples at least four distinct conformational states. In response to human receptor angiotensin-converting enzyme 2 (hACE2), S opens sequentially into the hACE2-bound S conformation through at least one on-path intermediate. Conformational preferences observed upon exposure to convalescent plasma or antibodies suggest mechanisms of neutralization involving either competition with hACE2 for binding to the receptor-binding domain (RBD) or allosteric interference with conformational changes required for entry. Our findings inform on mechanisms of S recognition and conformations for immunogen design.
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Affiliation(s)
- Maolin Lu
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT, USA.
| | - Pradeep D Uchil
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT, USA
| | - Wenwei Li
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT, USA
| | - Desheng Zheng
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT, USA
| | - Daniel S Terry
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Jason Gorman
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Wei Shi
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Baoshan Zhang
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Tongqing Zhou
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Shilei Ding
- Centre de Recherche du CHUM (CRCHUM), Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC, Canada
| | - Romain Gasser
- Centre de Recherche du CHUM (CRCHUM), Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC, Canada
| | - Jérémie Prévost
- Centre de Recherche du CHUM (CRCHUM), Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC, Canada
| | - Guillaume Beaudoin-Bussières
- Centre de Recherche du CHUM (CRCHUM), Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC, Canada
| | - Sai Priya Anand
- Centre de Recherche du CHUM (CRCHUM), Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC, Canada; Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada
| | - Annemarie Laumaea
- Centre de Recherche du CHUM (CRCHUM), Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC, Canada
| | - Jonathan R Grover
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT, USA
| | - Lihong Liu
- Aaron Diamond AIDS Research Center, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - David D Ho
- Aaron Diamond AIDS Research Center, Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - John R Mascola
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Andrés Finzi
- Centre de Recherche du CHUM (CRCHUM), Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montreal, QC, Canada; Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada
| | - Peter D Kwong
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Scott C Blanchard
- Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Walther Mothes
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT, USA.
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Dual CD4-based CAR T cells with distinct costimulatory domains mitigate HIV pathogenesis in vivo. Nat Med 2020; 26:1776-1787. [PMID: 32868878 PMCID: PMC9422086 DOI: 10.1038/s41591-020-1039-5] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 07/28/2020] [Indexed: 02/06/2023]
Abstract
An effective strategy to cure HIV will likely require a potent and sustained antiviral T cell response. Here we explored the utility of chimeric antigen receptor (CAR) T cells, expressing the CD4 ectodomain to confer specificity for the HIV envelope, to mitigate HIV-induced pathogenesis in bone marrow, liver, thymus (BLT) humanized mice. CAR T cells expressing the 4-1BB/CD3-ζ endodomain were insufficient to prevent viral rebound and CD4+ T cell loss after the discontinuation of antiretroviral therapy. Through iterative improvements to the CAR T cell product, we developed Dual-CAR T cells that simultaneously expressed both 4-1BB/CD3-ζ and CD28/CD3-ζ endodomains. Dual-CAR T cells exhibited expansion kinetics that exceeded 4-1BB-, CD28- and third-generation costimulated CAR T cells, elicited effector functions equivalent to CD28-costimulated CAR T cells and prevented HIV-induced CD4+ T cell loss despite persistent viremia. Moreover, when Dual-CAR T cells were protected from HIV infection through expression of the C34-CXCR4 fusion inhibitor, these cells significantly reduced acute-phase viremia, as well as accelerated HIV suppression in the presence of antiretroviral therapy and reduced tissue viral burden. Collectively, these studies demonstrate the enhanced therapeutic potency of a novel Dual-CAR T cell product with the potential to effectively treat HIV infection.
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18
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Kirui J, Freed EO. Generation and validation of a highly sensitive bioluminescent HIV-1 reporter vector that simplifies measurement of virus release. Retrovirology 2020; 17:12. [PMID: 32430080 PMCID: PMC7235552 DOI: 10.1186/s12977-020-00521-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 05/12/2020] [Indexed: 02/23/2023] Open
Abstract
Background The continued persistence of HIV-1 as a public health concern due to the lack of a cure calls for the development of new tools for studying replication of the virus. Here, we used NanoLuc, a small and extremely bright luciferase protein, to develop an HIV-1 bioluminescent reporter virus that simplifies functional measurement of virus particle production. Results The reporter virus encodes a Gag protein containing NanoLuc inserted between the matrix (MA) and capsid (CA) domains of Gag, thereby generating virus particles that package high levels of the NanoLuc reporter. We observe that inserting the NanoLuc protein within HIV-1 Gag has minimal impact on Gag expression and virus particle release. We show that the reporter virus recapitulates inhibition of HIV-1 particle release by Gag mutations, the restriction factor tetherin, and the small-molecule inhibitor amphotericin-B methyl ester. Conclusion These results demonstrate that this vector will provide a simple and rapid tool for functional studies of virus particle assembly and release and high-throughput screening for cellular factors and small molecules that promote or inhibit HIV-1 particle production.
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Affiliation(s)
- James Kirui
- Virus-Cell Interaction Section, HIV Dynamics and Replication Program, Center for Cancer Research, National Cancer Institute, Frederick, MD, 21702, USA
| | - Eric O Freed
- Virus-Cell Interaction Section, HIV Dynamics and Replication Program, Center for Cancer Research, National Cancer Institute, Frederick, MD, 21702, USA.
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19
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EWI-2 Inhibits Cell-Cell Fusion at the HIV-1 Virological Presynapse. Viruses 2019; 11:v11121082. [PMID: 31757023 PMCID: PMC6950393 DOI: 10.3390/v11121082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/14/2019] [Accepted: 11/16/2019] [Indexed: 12/13/2022] Open
Abstract
Cell-to-cell transfer of virus particles at the Env-dependent virological synapse (VS) is a highly efficient mode of HIV-1 transmission. While cell–cell fusion could be triggered at the VS, leading to the formation of syncytia and preventing exponential growth of the infected cell population, this is strongly inhibited by both viral (Gag) and host (ezrin and tetraspanins) proteins. Here, we identify EWI-2, a protein that was previously shown to associate with ezrin and tetraspanins, as a host factor that contributes to the inhibition of Env-mediated cell–cell fusion. Using quantitative fluorescence microscopy, shRNA knockdowns, and cell–cell fusion assays, we show that EWI-2 accumulates at the presynaptic terminal (i.e., the producer cell side of the VS), where it contributes to the fusion-preventing activities of the other viral and cellular components. We also find that EWI-2, like tetraspanins, is downregulated upon HIV-1 infection, most likely by Vpu. Despite the strong inhibition of fusion at the VS, T cell-based syncytia do form in vivo and in physiologically relevant culture systems, but they remain small. In regard to that, we demonstrate that EWI-2 and CD81 levels are restored on the surface of syncytia, where they (presumably) continue to act as fusion inhibitors. This study documents a new role for EWI-2 as an inhibitor of HIV-1-induced cell–cell fusion and provides novel insight into how syncytia are prevented from fusing indefinitely.
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