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Mandal S, Ghosh JS, Lohani SC, Zhao M, Cheng Y, Burrack R, Luo M, Li Q. A long-term stable cold-chain-friendly HIV mRNA vaccine encoding multi-epitope viral protease cleavage site immunogens inducing immunogen-specific protective T cell immunity. Emerg Microbes Infect 2024; 13:2377606. [PMID: 38979723 PMCID: PMC11259082 DOI: 10.1080/22221751.2024.2377606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 07/04/2024] [Indexed: 07/10/2024]
Abstract
The lack of success in clinical trials for HIV vaccines highlights the need to explore novel strategies for vaccine development. Research on highly exposed seronegative (HESN) HIV-resistant Kenyan female sex workers revealed naturally protective immunity is correlated with a focused immune response mediated by virus-specific CD8 T cells. Further studies indicated that the immune response is unconventionally focused on highly conserved sequences around HIV viral protease cleavage sites (VPCS). Thus, taking an unconventional approach to HIV vaccine development, we designed lipid nanoparticles loaded with mRNA that encodes multi-epitopes of VPCS (MEVPCS-mRNA LNP), a strategic design to boost antigen presentation by dendritic cells, promoting effective cellular immunity. Furthermore, we developed a novel cold-chain compatible mRNA LNP formulation, ensuring long-term stability and compatibility with cold-chain storage/transport, widening accessibility of mRNA LNP vaccine in low-income countries. The in-vivo mouse study demonstrated that the vaccinated group generated VPCS-specific CD8 memory T cells, both systemically and at mucosal sites of viral entry. The MEVPCS-mRNA LNP vaccine-induced CD8 T cell immunity closely resembled that of the HESN group and displayed a polyfunctional profile. Notably, it induced minimal to no activation of CD4 T cells. This proof-of-concept study underscores the potential of the MEVPCS-mRNA LNP vaccine in eliciting CD8 T cell memory specific to the highly conserved multiple VPCS, consequently having a broad coverage in human populations and limiting viral escape mutation. The MEVPCS-mRNA LNP vaccine holds promise as a candidate for an effective prophylactic HIV vaccine.
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Affiliation(s)
- Subhra Mandal
- Nebraska Center for Virology, School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Jayadri Sekhar Ghosh
- Nebraska Center for Virology, Department of Plant Pathology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Saroj Chandra Lohani
- Nebraska Center for Virology, School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Miaoyun Zhao
- Nebraska Center for Virology, School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Yilun Cheng
- Nebraska Center for Virology, School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Rachel Burrack
- Nebraska Center for Virology, School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Ma Luo
- Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, MB, Canada
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB, Canada
| | - Qingsheng Li
- Nebraska Center for Virology, School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
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2
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Vemparala B, Madelain V, Passaes C, Millet A, Avettand-Fenoel V, Djidjou-Demasse R, Dereuddre-Bosquet N, Le Grand R, Rouzioux C, Vaslin B, Sáez-Cirión A, Guedj J, Dixit NM. Antiviral capacity of the early CD8 T-cell response is predictive of natural control of SIV infection: Learning in vivo dynamics using ex vivo data. PLoS Comput Biol 2024; 20:e1012434. [PMID: 39255323 DOI: 10.1371/journal.pcbi.1012434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 09/20/2024] [Accepted: 08/21/2024] [Indexed: 09/12/2024] Open
Abstract
While most individuals suffer progressive disease following HIV infection, a small fraction spontaneously controls the infection. Although CD8 T-cells have been implicated in this natural control, their mechanistic roles are yet to be established. Here, we combined mathematical modeling and analysis of previously published data from 16 SIV-infected macaques, of which 12 were natural controllers, to elucidate the role of CD8 T-cells in natural control. For each macaque, we considered, in addition to the canonical in vivo plasma viral load and SIV DNA data, longitudinal ex vivo measurements of the virus suppressive capacity of CD8 T-cells. Available mathematical models do not allow analysis of such combined in vivo-ex vivo datasets. We explicitly modeled the ex vivo assay, derived analytical approximations that link the ex vivo measurements with the in vivo effector function of CD8-T cells, and integrated them with an in vivo model of virus dynamics, thus developing a new learning framework that enabled the analysis. Our model fit the data well and estimated the recruitment rate and/or maximal killing rate of CD8 T-cells to be up to 2-fold higher in controllers than non-controllers (p = 0.013). Importantly, the cumulative suppressive capacity of CD8 T-cells over the first 4-6 weeks of infection was associated with virus control (Spearman's ρ = -0.51; p = 0.05). Thus, our analysis identified the early cumulative suppressive capacity of CD8 T-cells as a predictor of natural control. Furthermore, simulating a large virtual population, our model quantified the minimum capacity of this early CD8 T-cell response necessary for long-term control. Our study presents new, quantitative insights into the role of CD8 T-cells in the natural control of HIV infection and has implications for remission strategies.
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Affiliation(s)
- Bharadwaj Vemparala
- Department of Chemical Engineering, Indian Institute of Science, Bengaluru, India
| | | | - Caroline Passaes
- Institut Pasteur, Université Paris Cité, Viral Reservoirs and Immune Control Unit, Paris, France
- CEA, Université Paris-Saclay, INSERM U1184, Immunology of Viral, Autoimmune, Hematologic and Bacterial Diseases (IMVAHB), IDMIT Department/ IBFJ, Fontenay-aux-Roses, France
| | - Antoine Millet
- INSERM U1016, CNRS UMR8104, Université Paris Cité Institut Cochin, Paris, France
| | | | | | - Nathalie Dereuddre-Bosquet
- CEA, Université Paris-Saclay, INSERM U1184, Immunology of Viral, Autoimmune, Hematologic and Bacterial Diseases (IMVAHB), IDMIT Department/ IBFJ, Fontenay-aux-Roses, France
| | - Roger Le Grand
- CEA, Université Paris-Saclay, INSERM U1184, Immunology of Viral, Autoimmune, Hematologic and Bacterial Diseases (IMVAHB), IDMIT Department/ IBFJ, Fontenay-aux-Roses, France
| | - Christine Rouzioux
- INSERM U1016, CNRS UMR8104, Université Paris Cité Institut Cochin, Paris, France
| | - Bruno Vaslin
- CEA, Université Paris-Saclay, INSERM U1184, Immunology of Viral, Autoimmune, Hematologic and Bacterial Diseases (IMVAHB), IDMIT Department/ IBFJ, Fontenay-aux-Roses, France
| | - Asier Sáez-Cirión
- Institut Pasteur, Université Paris Cité, Viral Reservoirs and Immune Control Unit, Paris, France
| | | | - Narendra M Dixit
- Department of Chemical Engineering, Indian Institute of Science, Bengaluru, India
- Department of Bioengineering, Indian Institute of Science, Bengaluru, India
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3
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Kuse N, Gatanaga H, Zhang Y, Chikata T, Oka S, Takiguchi M. Epitope-dependent effect of long-term cART on maintenance and recovery of HIV-1-specific CD8 + T cells. J Virol 2023; 97:e0102423. [PMID: 37877716 PMCID: PMC10688310 DOI: 10.1128/jvi.01024-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 09/26/2023] [Indexed: 10/26/2023] Open
Abstract
IMPORTANCE HIV-1-specific CD8+ T cells are anticipated to become effector cells for curative treatment using the "shock and kill" approach in people living with HIV-1 (PLWH) under combined antiretroviral therapy (cART). Previous studies demonstrated that the frequency of HIV-1-specific CD8+ T cells is reduced under cART and their functional ability remains impaired. These studies analyzed T-cell responses to a small number of HIV-1 epitopes or overlapping HIV-1 peptides. Therefore, the features of CD8+ T cells specific for HIV-1 epitopes under cART remain only partially clarified. Here, we analyzed CD8+ T cells specific for 63 well-characterized epitopes in 90 PLWH. We demonstrated that CD8+ T cells specific for large numbers of HIV-1 epitopes were maintained in an epitope-dependent fashion under long-term cART and that long-term cART enhanced or restored the ability of HIV-1-specific T cells to proliferate in vitro. This study implies that some HIV-1-specific T cells would be useful as effector cells for curative treatment.
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Affiliation(s)
- Nozomi Kuse
- Division of International Collaboration Research and Tokyo Joint Laboratory, Department of Frontier Research, Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto, Japan
- AIDS Research Center, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo, Japan
| | - Hiroyuki Gatanaga
- AIDS Clinical Center, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, Japan
| | - Yu Zhang
- Division of International Collaboration Research and Tokyo Joint Laboratory, Department of Frontier Research, Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto, Japan
| | - Takayuki Chikata
- Division of International Collaboration Research and Tokyo Joint Laboratory, Department of Frontier Research, Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto, Japan
| | - Shinichi Oka
- AIDS Clinical Center, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, Japan
| | - Masafumi Takiguchi
- Division of International Collaboration Research and Tokyo Joint Laboratory, Department of Frontier Research, Joint Research Center for Human Retrovirus Infection, Kumamoto University, Kumamoto, Japan
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4
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Obuku AE, Lugemwa JK, Abaasa A, Joloba M, Ding S, Pollara J, Ferrari G, Harari A, Pantaleo G, Kaleebu P. HIV specific Th1 responses are altered in Ugandans with HIV and Schistosoma mansoni coinfection. BMC Immunol 2023; 24:25. [PMID: 37644394 PMCID: PMC10466713 DOI: 10.1186/s12865-023-00554-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 06/28/2023] [Indexed: 08/31/2023] Open
Abstract
BACKGROUND Fishing communities surrounding Lake Victoria in Uganda have HIV prevalence of 28% and incidence rates of 5 per 100 person years. More than 50% of the local fishermen are infected with Schistosoma mansoni (S. mansoni). We investigated the role of S. mansoni coinfection as a possible modifier of immune responses against HIV. Using polychromatic flow cytometry and Gran-ToxiLux assays, HIV specific responses, T cell phenotypes, antibody-dependent cell-mediated cytotoxic (ADCC) potency and titres were compared between participants with HIV-S. mansoni coinfection and participants with HIV infection alone. RESULTS S. mansoni coinfection was associated with a modified pattern of anti-HIV responses, including lower frequency of bifunctional (IFNγ + IL-2 - TNF-α+) CD4 T cells, higher overall CD4 T cell activation and lower HIV ADCC antibody titres, compared to participants with HIV alone. CONCLUSIONS These results support the hypothesis that S. mansoni infection affects T cell and antibody responses to HIV in coinfected individuals.
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Affiliation(s)
- Andrew Ekii Obuku
- Medical Research Council/Uganda Virus Research Institute & London School of Hygiene and Tropical Medicine, Uganda Research Unit, Entebbe, Uganda.
| | - Jacqueline Kyosiimire Lugemwa
- Medical Research Council/Uganda Virus Research Institute & London School of Hygiene and Tropical Medicine, Uganda Research Unit, Entebbe, Uganda
| | - Andrew Abaasa
- Medical Research Council/Uganda Virus Research Institute & London School of Hygiene and Tropical Medicine, Uganda Research Unit, Entebbe, Uganda
| | - Moses Joloba
- School of Biomedical Sciences, Makerere University College of Health Sciences, Kampala, Uganda
| | - Song Ding
- EuroVacc Foundation, Amsterdam, The Netherlands
| | - Justin Pollara
- Department of Surgery, Duke University Medical Centre, Duke University, Durham, NC, USA
| | - Guido Ferrari
- Department of Surgery, Duke University Medical Centre, Duke University, Durham, NC, USA
| | - Alexandre Harari
- Department of Oncology, Lausanne University Teaching Hospital, Lausanne, Switzerland
| | - Giuseppe Pantaleo
- Division of Immunology and Allergy, Department of Medicine, Lausanne University Teaching Hospital, Lausanne, Switzerland
| | - Pontiano Kaleebu
- Medical Research Council/Uganda Virus Research Institute & London School of Hygiene and Tropical Medicine, Uganda Research Unit, Entebbe, Uganda
- Department of Clinical Research, London School of Hygiene & Tropical Medicine, London, UK
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5
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Madrid-Elena N, Serrano-Villar S, Gutiérrez C, Sastre B, Morín M, Luna L, Martín L, Santoyo-López J, López-Huertas MR, Moreno E, García-Bermejo ML, Moreno-Pelayo MÁ, Moreno S. Selective miRNA inhibition in CD8 + cytotoxic T lymphocytes enhances HIV-1 specific cytotoxic responses. Front Immunol 2022; 13:998368. [PMID: 36225912 PMCID: PMC9549323 DOI: 10.3389/fimmu.2022.998368] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 09/09/2022] [Indexed: 11/13/2022] Open
Abstract
miRNAs dictate relevant virus-host interactions, offering new avenues for interventions to achieve an HIV remission. We aimed to enhance HIV-specific cytotoxic responses-a hallmark of natural HIV control- by miRNA modulation in T cells. We recruited 12 participants six elite controllers and six patients with chronic HIV infection on long-term antiretroviral therapy ("progressors"). Elite controllers exhibited stronger HIV-specific cytotoxic responses than the progressors, and their CD8+T cells showed a miRNA (hsa-miR-10a-5p) significantly downregulated. When we transfected ex vivo CD8+ T cells from progressors with a synthetic miR-10a-5p inhibitor, miR-10a-5p levels decreased in 4 out of 6 progressors, correlating with an increase in HIV-specific cytotoxic responses. The effects of miR-10a-5p inhibition on HIV-specific CTL responses were modest, short-lived, and occurred before day seven after modulation. IL-4 and TNF-α levels strongly correlated with HIV-specific cytotoxic capacity. Thus, inhibition of miR-10a-5p enhanced HIV-specific CD8+ T cell capacity in progressors. Our pilot study proves the concept that miRNA modulation is a feasible strategy to combat HIV persistence by enhancing specific cytotoxic immune responses, which will inform new approaches for achieving an antiretroviral therapy-free HIV remission.
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Affiliation(s)
- Nadia Madrid-Elena
- Department of Infectious Diseases, Hospital Universitario Ramón y Cajal and Instituto de Investigación Sanitaria Ramón y Cajal (IRYCIS), Madrid, Spain
- Centro de Investigación en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III (IRYCIS), Madrid, Spain
| | - Sergio Serrano-Villar
- Department of Infectious Diseases, Hospital Universitario Ramón y Cajal and Instituto de Investigación Sanitaria Ramón y Cajal (IRYCIS), Madrid, Spain
- Centro de Investigación en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III (IRYCIS), Madrid, Spain
- Department of Medicine, University of California San Francisco, San Francisco, CA, United States
| | - Carolina Gutiérrez
- Department of Infectious Diseases, Hospital Universitario Ramón y Cajal and Instituto de Investigación Sanitaria Ramón y Cajal (IRYCIS), Madrid, Spain
- Centro de Investigación en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III (IRYCIS), Madrid, Spain
| | - Beatriz Sastre
- Department of Immunology, Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, Madrid, Spain
- Centro de Investigación Biomédica en Red (CIBER) de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Matías Morín
- Department of Genetics, Hospital Universitario Ramón y Cajal and Instituto de Investigación Sanitaria Ramón y Cajal, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
| | - Laura Luna
- Department of Infectious Diseases, Hospital Universitario Ramón y Cajal and Instituto de Investigación Sanitaria Ramón y Cajal (IRYCIS), Madrid, Spain
- Centro de Investigación en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III (IRYCIS), Madrid, Spain
| | - Laura Martín
- Biomarkers and Therapeutic Targets Group and Core Facility, Instituto Ramón y Cajal de Investigación Sanitaria (Instituto de Investigación Sanitaria Ramón y Cajal), Spanish Renal Research Network (REDinREN), Madrid, Spain
| | | | - María Rosa López-Huertas
- Immunopathology Unit, National Center of Microbiology, Instituto de Salud Carlos III, Madrid, Spain
| | - Elena Moreno
- Department of Infectious Diseases, Hospital Universitario Ramón y Cajal and Instituto de Investigación Sanitaria Ramón y Cajal (IRYCIS), Madrid, Spain
- Centro de Investigación en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III (IRYCIS), Madrid, Spain
| | - María Laura García-Bermejo
- Biomarkers and Therapeutic Targets Group and Core Facility, Instituto Ramón y Cajal de Investigación Sanitaria (Instituto de Investigación Sanitaria Ramón y Cajal), Spanish Renal Research Network (REDinREN), Madrid, Spain
| | - Miguel Ángel Moreno-Pelayo
- Department of Genetics, Hospital Universitario Ramón y Cajal and Instituto de Investigación Sanitaria Ramón y Cajal, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, Madrid, Spain
| | - Santiago Moreno
- Department of Infectious Diseases, Hospital Universitario Ramón y Cajal and Instituto de Investigación Sanitaria Ramón y Cajal (IRYCIS), Madrid, Spain
- Centro de Investigación en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III (IRYCIS), Madrid, Spain
- Department of Medicine, Alcalá University, Alcalá de Henares, Spain
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Abstract
PURPOSE OF REVIEW The quest for HIV-1 cure could take advantage of the study of rare individuals that control viral replication spontaneously (elite controllers) or after an initial course of antiretroviral therapy (posttreatment controllers, PTCs). In this review, we will compare back-to-back the immunological and virological features underlying viral suppression in elite controllers and PTCs, and explore their possible contributions to the HIV-1 cure research. RECENT FINDINGS HIV-1 control in elite controllers shows hallmarks of an effective antiviral response, favored by genetic background and possibly associated to residual immune activation. The immune pressure in elite controllers might select against actively transcribing intact proviruses, allowing the persistence of a small and poorly inducible reservoir. Evidence on PTCs is less abundant but preliminary data suggest that antiviral immune responses may be less pronounced. Therefore, these patients may rely on distinct mechanisms, not completely elucidated to date, suppressing HIV-1 transcription and replication. SUMMARY PTCs and elite controllers may control HIV replication using distinct pathways, the elucidation of which may contribute to design future interventional strategies aiming to achieve a functional cure.
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7
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Romero-Martín L, Tarrés-Freixas F, Pedreño-López N, de la Concepción MLR, Cunyat F, Hartigan-O'Connor D, Carrillo J, Mothe B, Blanco J, Ruiz-Riol M, Brander C, Olvera A. T-Follicular-Like CD8 + T Cell Responses in Chronic HIV Infection Are Associated With Virus Control and Antibody Isotype Switching to IgG. Front Immunol 2022; 13:928039. [PMID: 35784304 PMCID: PMC9241491 DOI: 10.3389/fimmu.2022.928039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 05/16/2022] [Indexed: 01/26/2023] Open
Abstract
T cell responses are considered critical for the in vivo control of HIV, but the contribution of different T cell subsets to this control remains unclear. Using a boosted flow cytometric approach that is able to differentiate CD4+ and CD8+ T cell Th1/Tc1, Th2/Tc2, Th17/Tc17, Treg and Tfh/Tfc-like HIV-specific T cell populations, we identified CD8+ Tfc responses that were related to HIV plasma viral loads and associated with rate of antibody isotype class switching to IgG. This favorable balance towards IgG responses positively correlated with increased virus neutralization, higher avidity of neutralizing antibodies and more potent antibody-dependent cell cytotoxicity (ADCC) in PBMCs from HIV controllers compared to non-controllers. Our results identified the CD8+ Tfc-like T-cell response as a component of effective virus control which could possibly be exploited therapeutically.
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Affiliation(s)
- Luis Romero-Martín
- IrsiCaixa AIDS Research Institute, Hospital Germans Trias i Pujol, Institute for Health Science Research Germans Trias i Pujol (IGTP), Badalona, Spain
- Departament de Biologia Cellular, de Fisiologia i d’Immunologia, Universitat Autonoma de Barcelona, Cerdanyola del Valles, Spain
| | - Ferran Tarrés-Freixas
- IrsiCaixa AIDS Research Institute, Hospital Germans Trias i Pujol, Institute for Health Science Research Germans Trias i Pujol (IGTP), Badalona, Spain
| | - Núria Pedreño-López
- IrsiCaixa AIDS Research Institute, Hospital Germans Trias i Pujol, Institute for Health Science Research Germans Trias i Pujol (IGTP), Badalona, Spain
| | - Maria L. Rodríguez de la Concepción
- IrsiCaixa AIDS Research Institute, Hospital Germans Trias i Pujol, Institute for Health Science Research Germans Trias i Pujol (IGTP), Badalona, Spain
| | - Francesc Cunyat
- IrsiCaixa AIDS Research Institute, Hospital Germans Trias i Pujol, Institute for Health Science Research Germans Trias i Pujol (IGTP), Badalona, Spain
| | - Dennis Hartigan-O'Connor
- Department of Medical Microbiology and Immunology, University of California, Davis, Davis, CA, United States
- California National Primate Research Center, University of California, Davis, Davis, CA, United States
- Division of Experimental Medicine, University of California, San Francisco, San Francisco, CA, United States
| | - Jorge Carrillo
- IrsiCaixa AIDS Research Institute, Hospital Germans Trias i Pujol, Institute for Health Science Research Germans Trias i Pujol (IGTP), Badalona, Spain
- CIBERINFEC, Centro de Investigación Biomédica en Red, Instituto de salud Carlos III, Madrid, Spain
| | - Beatriz Mothe
- IrsiCaixa AIDS Research Institute, Hospital Germans Trias i Pujol, Institute for Health Science Research Germans Trias i Pujol (IGTP), Badalona, Spain
- CIBERINFEC, Centro de Investigación Biomédica en Red, Instituto de salud Carlos III, Madrid, Spain
- University of Vic-Central University of Catalonia (UVic-UCC), Vic, Spain
- Fundació Lluita contra la Sida, Infectious Disease Department, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - Julià Blanco
- IrsiCaixa AIDS Research Institute, Hospital Germans Trias i Pujol, Institute for Health Science Research Germans Trias i Pujol (IGTP), Badalona, Spain
- CIBERINFEC, Centro de Investigación Biomédica en Red, Instituto de salud Carlos III, Madrid, Spain
- University of Vic-Central University of Catalonia (UVic-UCC), Vic, Spain
| | - Marta Ruiz-Riol
- IrsiCaixa AIDS Research Institute, Hospital Germans Trias i Pujol, Institute for Health Science Research Germans Trias i Pujol (IGTP), Badalona, Spain
- CIBERINFEC, Centro de Investigación Biomédica en Red, Instituto de salud Carlos III, Madrid, Spain
| | - Christian Brander
- IrsiCaixa AIDS Research Institute, Hospital Germans Trias i Pujol, Institute for Health Science Research Germans Trias i Pujol (IGTP), Badalona, Spain
- CIBERINFEC, Centro de Investigación Biomédica en Red, Instituto de salud Carlos III, Madrid, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain
- AELIX Therapeutics, Barcelona, Spain
| | - Alex Olvera
- IrsiCaixa AIDS Research Institute, Hospital Germans Trias i Pujol, Institute for Health Science Research Germans Trias i Pujol (IGTP), Badalona, Spain
- CIBERINFEC, Centro de Investigación Biomédica en Red, Instituto de salud Carlos III, Madrid, Spain
- University of Vic-Central University of Catalonia (UVic-UCC), Vic, Spain
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8
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Perdomo-Celis F, Passaes C, Monceaux V, Volant S, Boufassa F, de Truchis P, Marcou M, Bourdic K, Weiss L, Jung C, Bourgeois C, Goujard C, Meyer L, Müller-Trutwin M, Lambotte O, Sáez-Cirión A. Reprogramming dysfunctional CD8+ T cells to promote properties associated with natural HIV control. J Clin Invest 2022; 132:e157549. [PMID: 35380989 PMCID: PMC9151687 DOI: 10.1172/jci157549] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 03/29/2022] [Indexed: 01/21/2023] Open
Abstract
Virus-specific CD8+ T cells play a central role in HIV-1 natural controllers to maintain suppressed viremia in the absence of antiretroviral therapy. These cells display a memory program that confers them stemness properties, high survival, polyfunctionality, proliferative capacity, metabolic plasticity, and antiviral potential. The development and maintenance of such qualities by memory CD8+ T cells appear crucial to achieving natural HIV-1 control. Here, we show that targeting the signaling pathways Wnt/transcription factor T cell factor 1 (Wnt/TCF-1) and mTORC through GSK3 inhibition to reprogram HIV-specific CD8+ T cells from noncontrollers promoted functional capacities associated with natural control of infection. Features of such reprogrammed cells included enrichment in TCF-1+ less-differentiated subsets, a superior response to antigen, enhanced survival, polyfunctionality, metabolic plasticity, less mTORC1 dependency, an improved response to γ-chain cytokines, and a stronger HIV-suppressive capacity. Thus, such CD8+ T cell reprogramming, combined with other available immunomodulators, might represent a promising strategy for adoptive cell therapy in the search for an HIV-1 cure.
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Affiliation(s)
- Federico Perdomo-Celis
- Institut Pasteur, Université Paris Cité, Unité HIV Inflammation et Persistance, Paris, France
| | - Caroline Passaes
- Institut Pasteur, Université Paris Cité, Unité HIV Inflammation et Persistance, Paris, France
| | - Valérie Monceaux
- Institut Pasteur, Université Paris Cité, Unité HIV Inflammation et Persistance, Paris, France
| | - Stevenn Volant
- Institut Pasteur, Université Paris Cité, Hub Bioinformatique et Biostatistique, Paris, France
| | - Faroudy Boufassa
- Université Paris Saclay, INSERM Centre de Recherche en Épidémiologie et Santé des Populations (CESP) U1018, Assistance Publique–Hôpitaux de Paris (AP-HP), Department of Public Health, Bicêtre Hospital, Paris, France
| | - Pierre de Truchis
- Université Paris-Saclay, AP-HP Hôpital Raymond Poincaré, Garches, France
| | - Morgane Marcou
- Université Paris-Saclay, AP-HP Hôpital Raymond Poincaré, Garches, France
| | - Katia Bourdic
- Université Paris-Saclay, AP-HP, Bicêtre Hospital, UMR1184 INSERM Commissariat à l’énergie atomique et aux énergies alternatives (CEA), Le Kremlin Bicêtre, France
| | - Laurence Weiss
- Université de Paris Cité, AP-HP, Paris Centre, Hôtel Dieu, Paris, France
| | - Corinne Jung
- Université de Paris Cité, AP-HP, Paris Centre, Hôtel Dieu, Paris, France
| | - Christine Bourgeois
- Université Paris-Saclay, AP-HP, Bicêtre Hospital, UMR1184 INSERM Commissariat à l’énergie atomique et aux énergies alternatives (CEA), Le Kremlin Bicêtre, France
| | - Cécile Goujard
- Université Paris-Saclay, AP-HP, Hôpital Bicêtre, Départements Médico-Universitaires (DMU) 7, INSERM U1018, CESP, Le Kremlin Bicêtre, France
| | - Laurence Meyer
- Université Paris Saclay, INSERM Centre de Recherche en Épidémiologie et Santé des Populations (CESP) U1018, Assistance Publique–Hôpitaux de Paris (AP-HP), Department of Public Health, Bicêtre Hospital, Paris, France
| | - Michaela Müller-Trutwin
- Institut Pasteur, Université Paris Cité, Unité HIV Inflammation et Persistance, Paris, France
| | - Olivier Lambotte
- Université Paris-Saclay, AP-HP, Bicêtre Hospital, UMR1184 INSERM Commissariat à l’énergie atomique et aux énergies alternatives (CEA), Le Kremlin Bicêtre, France
| | - Asier Sáez-Cirión
- Institut Pasteur, Université Paris Cité, Unité HIV Inflammation et Persistance, Paris, France
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9
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Xu Y, Weideman AM, Abad-Fernandez M, Mollan KR, Kallon S, Samir S, Warren JA, Clutton G, Roan N, Adimora AA, Archin N, Kuruc J, Gay C, Hudgens MG, Goonetilleke N. CD8 T Cell Virus Inhibition Assay Protocol. Bio Protoc 2022; 12:e4354. [PMID: 35434196 PMCID: PMC8983397 DOI: 10.21769/bioprotoc.4354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 11/15/2021] [Accepted: 01/26/2022] [Indexed: 12/29/2022] Open
Abstract
The human immunodeficiency virus (HIV)-1 viral inhibition assay (VIA) measures CD8+ T cell-mediated inhibition of HIV replication in CD4+ T cells and is increasingly used for clinical testing of HIV vaccines and immunotherapies. Different VIAs that differ in length of CD8:CD4 T cell culture periods (6-13 days), purity of CD4 cultures [isolated CD4+ T cells or CD8+ depleted peripheral blood mononuclear cells (PBMCs)], HIV strains (laboratory strains, isolates, reporter viruses) and read-outs of virus inhibition (p24 ELISA, intracellular measurement of p24, luciferase reporter expression, and viral gag RNA) have been reported. Here, we describe multiple modifications to a 7-day VIA protocol, the most impactful being the introduction of independent replicate cultures for both HIV infected-CD4 (HIV-CD4) and HIV-CD4:CD8 T cell cultures. Virus inhibition was quantified using a ratio of weighted averages of p24+ cells in replicate cultures and the corresponding 95% confidence intervals. We identify methodological and analysis changes that could be incorporated into other protocols to improve assay reproducibility. We found that in people living with HIV (PLWH) on antiretroviral therapy (ART), CD8 T cell virus inhibition was largely stable over time, supporting the use of this assay and/or analysis methods to examine therapeutic interventions. Graphic abstract.
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Affiliation(s)
- Yinyan Xu
- Department of Microbiology & Immunology, UNC Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
| | - Ann Marie Weideman
- Department of Biostatistics, UNC Chapel Hill, Chapel Hill, North Carolina, USA
,Center for AIDS Research, School of Medicine, UNC Chapel Hill, Chapel Hill, NC 27599, USA
| | - Maria Abad-Fernandez
- Department of Microbiology & Immunology, UNC Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
| | - Katie R. Mollan
- Department of Microbiology & Immunology, UNC Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
,Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
,School of Medicine and UNC HIV Cure Center, UNC Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
| | - Sallay Kallon
- Department of Microbiology & Immunology, UNC Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
| | - Shahryar Samir
- Department of Microbiology & Immunology, UNC Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
| | - Joanna A. Warren
- Department of Microbiology & Immunology, UNC Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
| | - Genevieve Clutton
- Department of Microbiology & Immunology, UNC Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
| | - Nadia Roan
- Department of Urology, University of California San Francisco, CA 94158, USA
,Gladstone Institute of Virology and Immunology, CA 94158, USA
| | - Adaora A. Adimora
- Center for AIDS Research, School of Medicine, UNC Chapel Hill, Chapel Hill, NC 27599, USA
,Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
,School of Medicine and UNC HIV Cure Center, UNC Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
| | - Nancie Archin
- School of Medicine and UNC HIV Cure Center, UNC Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
| | - JoAnn Kuruc
- School of Medicine and UNC HIV Cure Center, UNC Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
| | - Cindy Gay
- School of Medicine and UNC HIV Cure Center, UNC Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
| | - Michael G. Hudgens
- Department of Biostatistics, UNC Chapel Hill, Chapel Hill, North Carolina, USA
,Center for AIDS Research, School of Medicine, UNC Chapel Hill, Chapel Hill, NC 27599, USA
| | - Nilu Goonetilleke
- Department of Microbiology & Immunology, UNC Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
,School of Medicine and UNC HIV Cure Center, UNC Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
,
*For correspondence:
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10
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N’takpé JB, Gabillard D, Moh R, Gardiennet E, Toni TD, Kouame GM, Badje A, Emieme A, Karcher S, Le Carrou J, Ménan H, Danel C, Eholie SP, Rouzioux C, Anglaret X, Lambotte O. Elite and viremic HIV-1 controllers in West Africa. AIDS 2022; 36:29-38. [PMID: 34524145 PMCID: PMC8654265 DOI: 10.1097/qad.0000000000003072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 07/03/2021] [Accepted: 07/15/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Data on HIV-1 controllers in Africa are scarce. We report the proportion of HIV-1 controllers in a group of adults prospectively monitored with frequent viral load measurements as part of a clinical trial in West Africa. METHODS For the Temprano trial, antiretroviral therapy (ART)-naive HIV-1 infected adults with no criteria for starting ART were randomized to start ART immediately or defer ART until the WHO starting criteria were met. Plasma viral load was measured every 6 months. The trial follow-up was 30 months. We considered all Temprano participants randomized to defer ART. Patients with all semestrial viral <2000 copies/ml and still off ART at month 30 were defined as HIV-1 controllers. Controllers with all viral loads <50 copies/ml were defined as elite controllers, the rest as viremic controllers. RESULTS Of the 1023 HIV-1-infected adults randomized in the Temprano deferred-ART group, 18 (1.8%) met the criteria for classification as HIV controllers, of whom seven (0.7%) were elite controllers and 11 (1.1%) viremic controllers. The HIV-1 controllers had low peripheral blood mononuclear cell HIV-1 DNA and low inflammatory marker levels. They maintained high CD4+ cell count and percentages and had a low morbidity rate. DISCUSSION HIV controllers exist in Africa at a proportion close to that reported elsewhere. They represent a small fraction of all HIV-1-infected patients but raise important questions. Further studies should assess whether starting ART might represent more risk than benefit for some controllers, and where it does, how to identify these patients before they start ART.
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Affiliation(s)
- Jean Baptiste N’takpé
- Inserm 1219, University of Bordeaux, IRD, Bordeaux, France
- PACCI/ANRS Research Center
- Département de Dermatologie et Maladies Infectieuses, Université Felix Houphouët Boigny, Abidjan, Côte d’Ivoire
| | - Delphine Gabillard
- Inserm 1219, University of Bordeaux, IRD, Bordeaux, France
- PACCI/ANRS Research Center
| | - Raoul Moh
- Inserm 1219, University of Bordeaux, IRD, Bordeaux, France
- PACCI/ANRS Research Center
- Département de Dermatologie et Maladies Infectieuses, Université Felix Houphouët Boigny, Abidjan, Côte d’Ivoire
| | - Elise Gardiennet
- AP-HP, CHU Necker Enfants Malades, Université Paris Descartes, Paris, France
| | - Thomas-d’Aquin Toni
- Inserm 1219, University of Bordeaux, IRD, Bordeaux, France
- PACCI/ANRS Research Center
- CeDReS, CHU de Treichville, Abidjan, Côte d’Ivoire
| | - Gérard M. Kouame
- Inserm 1219, University of Bordeaux, IRD, Bordeaux, France
- PACCI/ANRS Research Center
- Département de Dermatologie et Maladies Infectieuses, Université Felix Houphouët Boigny, Abidjan, Côte d’Ivoire
| | - Anani Badje
- Inserm 1219, University of Bordeaux, IRD, Bordeaux, France
- PACCI/ANRS Research Center
- Département de Dermatologie et Maladies Infectieuses, Université Felix Houphouët Boigny, Abidjan, Côte d’Ivoire
| | - Arlette Emieme
- Inserm 1219, University of Bordeaux, IRD, Bordeaux, France
- PACCI/ANRS Research Center
- CeDReS, CHU de Treichville, Abidjan, Côte d’Ivoire
| | - Sophie Karcher
- Inserm 1219, University of Bordeaux, IRD, Bordeaux, France
- PACCI/ANRS Research Center
| | - Jérome Le Carrou
- Inserm 1219, University of Bordeaux, IRD, Bordeaux, France
- PACCI/ANRS Research Center
| | - Hervé Ménan
- Inserm 1219, University of Bordeaux, IRD, Bordeaux, France
- PACCI/ANRS Research Center
- CeDReS, CHU de Treichville, Abidjan, Côte d’Ivoire
| | - Christine Danel
- Inserm 1219, University of Bordeaux, IRD, Bordeaux, France
- PACCI/ANRS Research Center
| | - Serge P. Eholie
- Inserm 1219, University of Bordeaux, IRD, Bordeaux, France
- PACCI/ANRS Research Center
- Département de Dermatologie et Maladies Infectieuses, Université Felix Houphouët Boigny, Abidjan, Côte d’Ivoire
| | - Christine Rouzioux
- PACCI/ANRS Research Center
- Faculté de Médecine, Université Paris Descartes, Paris
| | - Xavier Anglaret
- Inserm 1219, University of Bordeaux, IRD, Bordeaux, France
- PACCI/ANRS Research Center
| | - Olivier Lambotte
- AP-HP Paris Saclay, Hôpital Bicêtre, Clinical Immunology Department
- Université Paris-Saclay, Inserm, CEA, Center for Immunology of Viral, Auto-immune, Hematological and Bacterial diseases (IDMIT/IMVA-HB), Le Kremlin Bicêtre, France
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11
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Plaçais L, Boufassa F, Lécuroux C, Gardiennet E, Avettand-Fenoel V, Saez-Cirion A, Lambotte O, Noël N. Antiretroviral therapy for HIV controllers: Reasons for initiation and outcomes in the French ANRS-CO21 CODEX cohort. EClinicalMedicine 2021; 37:100963. [PMID: 34195579 PMCID: PMC8225698 DOI: 10.1016/j.eclinm.2021.100963] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Less than 1% of Human Immunodeficiency Virus (HIV)-infected individuals are able to achieve spontaneous viral control without requiring antiretroviral therapy (ART). Whether these HIV controllers (HIC) are at risk of HIV-associated comorbidities and could benefit from ART is debated, but recent studies reported decreased T-cell activation upon ART initiation. We report the frequency of ART initiation, reasons to treat, treatment outcome on immunovirological parameters, and rate of side-effects and treatment discontinuation in the French cohort of HIC. METHODS Participants included in the French multicenter Agence Nationale de Recherche sur le SIDA et les Hépatites (ANRS) Cohorte des extremes (CODEX) cohort of HIC between July 6, 2007 and January 3, 2018 were prospectively followed. ART initiation, indication, discontinuation, non-Acquired ImmunoDeficiency Syndrome (AIDS)-defining events, side-effects, and immunovirological parameters were recorded. Undetectable HIC (u-HIC) were defined as participants with strictly undetectable viral loads based on routinely used assays throughout the follow-up and blipper HIC (b-HIC) as participants with possible detectable viral loads above the detection threshold during follow-up. FINDINGS Among 302 HIC followed for a median of 14.8 years [10.3-20.2], 90 (30%) received ART (7 u-HIC and 83 b-HIC). The main reasons for ART initiation were decreased CD4 T-cell counts (n = 36, 40%), loss of virological control (n = 13, 14%), and non-AIDS-defining events (n = 12, 13%). Sixteen (18%) participants experienced 17 grade 1-2 adverse events. In b-HIC, ART slightly increased the CD4/CD8 ratio (median +0.19, p < 0.0001) and decreased the frequency of circulating CD38+ HLA-DR.+ CD4 and CD8 lymphocytes (median -0.75%, p = 0.003, and -2%, p < 0.0001, respectively), but these changes were not observed for treated u-HIC. Thirteen (14%) participants discontinued ART (5 (38%) because of side-effects, and 10 remained HIC after treatment cessation (median follow-up: 305 days [235-728]). INTERPRETATION Only 30% of participants in this large cohort of HIC required ART during a median follow-up of 14.8 years. These results show that HIC status is very stable and vouch for a patient-centered treatment decision based on the individual benefit/risk balance.
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Affiliation(s)
- Léo Plaçais
- AP-HP, GHU Paris-Saclay, Hôpital Bicêtre, Service de Médecine Interne et Immunologie Clinique, Le Kremlin Bicêtre, 78, rue du Général Leclerc, 94275 CEDEX, France
- Inserm, CEA, Centre de Recherche en Immunologie des Infections Virales et des Maladies Auto-Immunes ImVA, Université Paris-Saclay, UMR1184, Le Kremlin Bicêtre 94270, France
| | - Faroudy Boufassa
- CESP, Centre for Research in Epidemiology and Population Health, Univ Paris-Saclay, Univ Paris Sud, UVSQ, Inserm UMRS 1018, Villejuif, France
| | - Camille Lécuroux
- Inserm, CEA, Centre de Recherche en Immunologie des Infections Virales et des Maladies Auto-Immunes ImVA, Université Paris-Saclay, UMR1184, Le Kremlin Bicêtre 94270, France
| | - Elise Gardiennet
- AP-HP, Laboratoire de Microbiologie Clinique, Hôpital Necker-Enfants Malades, Paris, France
- Faculté de Médecine, INSERM U1016, CNRS, UMR8104, Institut Cochin, Université de Paris, Paris, France
| | - Véronique Avettand-Fenoel
- AP-HP, Laboratoire de Microbiologie Clinique, Hôpital Necker-Enfants Malades, Paris, France
- Faculté de Médecine, INSERM U1016, CNRS, UMR8104, Institut Cochin, Université de Paris, Paris, France
| | - Asier Saez-Cirion
- Institut Pasteur, Unité HIV, Inflammation et Persistance, Paris, France
| | - Olivier Lambotte
- AP-HP, GHU Paris-Saclay, Hôpital Bicêtre, Service de Médecine Interne et Immunologie Clinique, Le Kremlin Bicêtre, 78, rue du Général Leclerc, 94275 CEDEX, France
- Inserm, CEA, Centre de Recherche en Immunologie des Infections Virales et des Maladies Auto-Immunes ImVA, Université Paris-Saclay, UMR1184, Le Kremlin Bicêtre 94270, France
- Faculté de Médecine, Université Paris Saclay, Le Kremlin Bicêtre, France
| | - Nicolas Noël
- AP-HP, GHU Paris-Saclay, Hôpital Bicêtre, Service de Médecine Interne et Immunologie Clinique, Le Kremlin Bicêtre, 78, rue du Général Leclerc, 94275 CEDEX, France
- Inserm, CEA, Centre de Recherche en Immunologie des Infections Virales et des Maladies Auto-Immunes ImVA, Université Paris-Saclay, UMR1184, Le Kremlin Bicêtre 94270, France
- Faculté de Médecine, Université Paris Saclay, Le Kremlin Bicêtre, France
- Corresponding author at: AP-HP, GHU Paris-Saclay, Hôpital Bicêtre, Service de Médecine Interne et Immunologie Clinique, Le Kremlin Bicêtre, 78, rue du Général Leclerc, 94275 CEDEX, France.
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12
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Xu Y, Weideman AM, Abad-Fernandez M, Mollan KR, Kallon S, Samir S, Warren JA, Clutton G, Roan NR, Adimora AA, Archin N, Kuruc J, Gay C, Hudgens MG, Goonetilleke N. Reliable Estimation of CD8 T Cell Inhibition of In Vitro HIV-1 Replication. Front Immunol 2021; 12:666991. [PMID: 34276657 PMCID: PMC8278574 DOI: 10.3389/fimmu.2021.666991] [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: 02/11/2021] [Accepted: 05/24/2021] [Indexed: 02/02/2023] Open
Abstract
The HIV-1 viral inhibition assay (VIA) measures CD8 T cell-mediated inhibition of HIV replication in CD4 T cells and is increasingly used for clinical testing of HIV vaccines and immunotherapies. The VIA has multiple sources of variability arising from in vitro HIV infection and co-culture of two T cell populations. Here, we describe multiple modifications to a 7-day VIA protocol, the most impactful being the introduction of independent replicate cultures for both HIV infected-CD4 (HIV-CD4) and HIV-CD4:CD8 T cell cultures. Virus inhibition was quantified using a ratio of weighted averages of p24+ cells in replicate cultures and the corresponding 95% confidence interval. An Excel template is provided to facilitate calculations. Virus inhibition was higher in people living with HIV suppressed on antiretroviral therapy (n=14, mean: 40.0%, median: 43.8%, range: 8.2 to 73.3%; p < 0.0001, two-tailed, exact Mann-Whitney test) compared to HIV-seronegative donors (n = 21, mean: -13.7%, median: -14.4%, range: -49.9 to 20.9%) and was stable over time (n = 6, mean %COV 9.4%, range 0.9 to 17.3%). Cross-sectional data were used to define 8% inhibition as the threshold to confidently detect specific CD8 T cell activity and determine the minimum number of culture replicates and p24+ cells needed to have 90% statistical power to detect this threshold. Last, we note that, in HIV seronegative donors, the addition of CD8 T cells to HIV infected CD4 T cells consistently increased HIV replication, though the level of increase varied markedly between donors. This co-culture effect may contribute to the weak correlations observed between CD8 T cell VIA and other measures of HIV-specific CD8 T cell function.
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Affiliation(s)
- Yinyan Xu
- Department of Microbiology & Immunology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, United States
| | - Ann Marie Weideman
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States,Center for AIDS Research, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Maria Abad-Fernandez
- Department of Microbiology & Immunology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, United States
| | - Katie R. Mollan
- Center for AIDS Research, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States,Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, United States
| | - Sallay Kallon
- Department of Microbiology & Immunology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, United States
| | - Shahryar Samir
- Department of Microbiology & Immunology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, United States
| | - Joanna A. Warren
- Department of Microbiology & Immunology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, United States
| | - Genevieve Clutton
- Department of Microbiology & Immunology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, United States
| | - Nadia R. Roan
- Department of Urology, University of California San Francisco, San Francisco, CA, United States,Gladstone Institute of Virology and Immunology, San Francisco, CA, United States
| | - Adaora A. Adimora
- Center for AIDS Research, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States,Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, United States,School of Medicine and UNC HIV Cure Center, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, United States
| | - Nancie Archin
- School of Medicine and UNC HIV Cure Center, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, United States
| | - JoAnn Kuruc
- School of Medicine and UNC HIV Cure Center, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, United States
| | - Cynthia Gay
- School of Medicine and UNC HIV Cure Center, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, United States
| | - Michael G. Hudgens
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States,Center for AIDS Research, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Nilu Goonetilleke
- Department of Microbiology & Immunology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, United States,School of Medicine and UNC HIV Cure Center, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, United States,*Correspondence: Nilu Goonetilleke,
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13
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Li JZ, Blankson JN. How elite controllers and posttreatment controllers inform our search for an HIV-1 cure. J Clin Invest 2021; 131:e149414. [PMID: 34060478 DOI: 10.1172/jci149414] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
A small percentage of people living with HIV-1 can control viral replication without antiretroviral therapy (ART). These patients are called elite controllers (ECs) if they are able to maintain viral suppression without initiating ART and posttreatment controllers (PTCs) if they control HIV replication after ART has been discontinued. Both types of controllers may serve as a model of a functional cure for HIV-1 but the mechanisms responsible for viral control have not been fully elucidated. In this review, we highlight key lessons that have been learned so far in the study of ECs and PTCs and their implications for HIV cure research.
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Affiliation(s)
- Jonathan Z Li
- Division of Infectious Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Joel N Blankson
- Center for AIDS Research, Department of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
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14
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Optimal Maturation of the SIV-Specific CD8 + T Cell Response after Primary Infection Is Associated with Natural Control of SIV: ANRS SIC Study. Cell Rep 2021; 32:108174. [PMID: 32966788 DOI: 10.1016/j.celrep.2020.108174] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 07/10/2020] [Accepted: 08/28/2020] [Indexed: 12/30/2022] Open
Abstract
Highly efficient CD8+ T cells are associated with natural HIV control, but it has remained unclear how these cells are generated and maintained. We have used a macaque model of spontaneous SIVmac251 control to monitor the development of efficient CD8+ T cell responses. Our results show that SIV-specific CD8+ T cells emerge during primary infection in all animals. The ability of CD8+ T cells to suppress SIV is suboptimal in the acute phase but increases progressively in controller macaques before the establishment of sustained low-level viremia. Controller macaques develop optimal memory-like SIV-specific CD8+ T cells early after infection. In contrast, a persistently skewed differentiation phenotype characterizes memory SIV-specific CD8+ T cells in non-controller macaques. Accordingly, the phenotype of SIV-specific CD8+ T cells defined early after infection appears to favor the development of protective immunity in controllers, whereas SIV-specific CD8+ T cells in non-controllers fail to gain antiviral potency, feasibly as a consequence of early defects imprinted in the memory pool.
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15
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Lu L, Wang J, Yang Q, Xie X, Huang Y. The role of CD38 in HIV infection. AIDS Res Ther 2021; 18:11. [PMID: 33820568 PMCID: PMC8021004 DOI: 10.1186/s12981-021-00330-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 03/06/2021] [Indexed: 11/24/2022] Open
Abstract
The widely-expressed molecule CD38 is a single-stranded type II transmembrane glycoprotein that is mainly involved in regulating the differentiation and activation state of the cell. CD38 has broad and complex functions, including enzymatic activity, intercellular signal transduction, cell activation, cytokine production, receptor function and adhesion activity, and it plays an important role in the physiological and pathological processes of many diseases. Many studies have shown that CD38 is related to the occurrence and development of HIV infection, and CD38 may regulate its progression through different mechanisms. Therefore, investigating the role of CD38 in HIV infection and the potential signaling pathways that are involved may provide a new perspective on potential treatments for HIV infection. In the present review, the current understanding of the roles CD38 plays in HIV infection are summarized. In addition, the specific role of CD38 in the process of HIV infection of human CD4+ T lymphocytes is also discussed.
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16
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Jilg N, Garcia-Broncano P, Peluso M, Segal FP, Bosch RJ, Roberts-Toler C, Chen SMY, Van Dam CN, Keefer MC, Kuritzkes DR, Landay AL, Deeks S, Yu XG, Sax PE, Li JZ. Maintenance of Viral Suppression in Human Immunodeficiency Virus Controllers Despite Waning T-Cell Responses During Antiretroviral Therapy. J Infect Dis 2021; 222:1837-1842. [PMID: 32496516 DOI: 10.1093/infdis/jiaa294] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 05/28/2020] [Indexed: 12/18/2022] Open
Abstract
AIDS Clinical Trials Group study A5308 found reduced T-cell activation and exhaustion in human immunodeficiency virus (HIV) controllers start antiretroviral therapy (ART). We further assessed HIV-specific T-cell responses and post-ART viral loads. Before ART, the 31% of participants with persistently undetectable viremia had more robust HIV-specific T-cell responses. During ART, significant decreases were observed in a broad range of T-cell responses. Eight controllers in A5308 and the Study of the Consequences of the Protease Inhibitor Era (SCOPE) cohort showed no viremia above the level of quantification in the first 12 weeks after ART discontinuation. ART significantly reduced HIV-specific T-cell responses in HIV controllers but did not adversely affect controller status after ART discontinuation.
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Affiliation(s)
- Nikolaus Jilg
- Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | | | - Michael Peluso
- University of California, San Francisco, California, USA
| | - Florencia P Segal
- Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Ronald J Bosch
- Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | | | - Samantha M Y Chen
- Ragon Institute of MGH, MIT and Harvard, Cambridge, Massachusetts, USA
| | | | - Michael C Keefer
- University of Rochester School of Medicine and Dentistry, Rochester, New York, USA
| | - Daniel R Kuritzkes
- Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Alan L Landay
- Rush University Medical Center, Chicago, Illinois, USA
| | - Steven Deeks
- University of California, San Francisco, California, USA
| | - Xu G Yu
- Ragon Institute of MGH, MIT and Harvard, Cambridge, Massachusetts, USA
| | - Paul E Sax
- Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Jonathan Z Li
- Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
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17
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Makinde J, Nduati EW, Freni-Sterrantino A, Streatfield C, Kibirige C, Dalel J, Black SL, Hayes P, Macharia G, Hare J, McGowan E, Abel B, King D, Joseph S, Hunter E, Sanders EJ, Price M, Gilmour J. A Novel Sample Selection Approach to Aid the Identification of Factors That Correlate With the Control of HIV-1 Infection. Front Immunol 2021; 12:634832. [PMID: 33777023 PMCID: PMC7991997 DOI: 10.3389/fimmu.2021.634832] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 02/08/2021] [Indexed: 12/11/2022] Open
Abstract
Individuals infected with HIV display varying rates of viral control and disease progression, with a small percentage of individuals being able to spontaneously control infection in the absence of treatment. In attempting to define the correlates associated with natural protection against HIV, extreme heterogeneity in the datasets generated from systems methodologies can be further complicated by the inherent variability encountered at the population, individual, cellular and molecular levels. Furthermore, such studies have been limited by the paucity of well-characterised samples and linked epidemiological data, including duration of infection and clinical outcomes. To address this, we selected 10 volunteers who rapidly and persistently controlled HIV, and 10 volunteers each, from two control groups who failed to control (based on set point viral loads) from an acute and early HIV prospective cohort from East and Southern Africa. A propensity score matching approach was applied to control for the influence of five factors (age, risk group, virus subtype, gender, and country) known to influence disease progression on causal observations. Fifty-two plasma proteins were assessed at two timepoints in the 1st year of infection. We independently confirmed factors known to influence disease progression such as the B*57 HLA Class I allele, and infecting virus Subtype. We demonstrated associations between circulating levels of MIP-1α and IL-17C, and the ability to control infection. IL-17C has not been described previously within the context of HIV control, making it an interesting target for future studies to understand HIV infection and transmission. An in-depth systems analysis is now underway to fully characterise host, viral and immunological factors contributing to control.
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Affiliation(s)
- Julia Makinde
- IAVI Human Immunology Laboratory, Imperial College London, London, United Kingdom
| | - Eunice W Nduati
- Kenya Medical Research Institute-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Anna Freni-Sterrantino
- Department of Epidemiology and Biostatistics, MRC-PHE Centre for Environment and Health, Imperial College London, London, United Kingdom
| | - Claire Streatfield
- IAVI Human Immunology Laboratory, Imperial College London, London, United Kingdom
| | - Catherine Kibirige
- IAVI Human Immunology Laboratory, Imperial College London, London, United Kingdom
| | - Jama Dalel
- IAVI Human Immunology Laboratory, Imperial College London, London, United Kingdom
| | - S Lucas Black
- IAVI Human Immunology Laboratory, Imperial College London, London, United Kingdom
| | - Peter Hayes
- IAVI Human Immunology Laboratory, Imperial College London, London, United Kingdom
| | - Gladys Macharia
- IAVI Human Immunology Laboratory, Imperial College London, London, United Kingdom
| | - Jonathan Hare
- IAVI Human Immunology Laboratory, Imperial College London, London, United Kingdom
| | - Edward McGowan
- IAVI Human Immunology Laboratory, Imperial College London, London, United Kingdom
| | - Brian Abel
- IAVI Human Immunology Laboratory, Imperial College London, London, United Kingdom
| | - Deborah King
- IAVI Human Immunology Laboratory, Imperial College London, London, United Kingdom
| | - Sarah Joseph
- IAVI Human Immunology Laboratory, Imperial College London, London, United Kingdom
| | | | - Eric Hunter
- Emory Vaccine Centre, Yerkes National Primate Research Centre, Emory University, Atlanta, GA, United States.,Zambia-Emory HIV Research Project, Lusaka, Zambia
| | - Eduard J Sanders
- Kenya Medical Research Institute-Wellcome Trust Research Programme, Kilifi, Kenya
| | - Matt Price
- IAVI, New York, NY, United States.,Department of Epidemiology and Biostatistics, University of California, San Francisco, San Francisco, CA, United States
| | - Jill Gilmour
- IAVI Human Immunology Laboratory, Imperial College London, London, United Kingdom
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18
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Adams P, Iserentant G, Servais JY, Vandekerckhove L, Vanham G, Seguin-Devaux C. Cytotoxic CD8+ T Cells Expressing CXCR5 Are Detectable in HIV-1 Elite Controllers After Prolonged In Vitro Peptide Stimulation. Front Immunol 2021; 11:622343. [PMID: 33717056 PMCID: PMC7945035 DOI: 10.3389/fimmu.2020.622343] [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: 10/28/2020] [Accepted: 12/21/2020] [Indexed: 11/23/2022] Open
Abstract
Antiretroviral therapy (ART) is not curative as HIV-1 persists in long-lived viral reservoirs. Consequently, patients are dependent on life-long drug adherence with possible side effects. To overcome these limitations strategies of a functional cure aim at ART free viral remission. In this study, we sought to identify detailed subsets of anti-viral CD8+ T cell immunity linked to natural long-term control of HIV-1 infection. Here, we analyzed HIV controllers and ART suppressed progressors for in vitro viral suppressive capacity (VSC) at baseline and after peptide stimulation. Functional properties and phenotypes of CD8+ T cells were assessed by IFN-γ ELISPOT and 18 color flow cytometry. HIV controllers showed significantly increased suppression at baseline as well as after peptide stimulation. IFN-γ secretion and the proliferation marker Ki67 positively correlated with VSC. Moreover, the detailed phenotype of three distinct multifunctional memory CD8+ T cell subsets were specific traits of HIV controllers of which two correlated convincingly with VSC. Our results underline the importance of multifunctional CD8+ T cell responses during natural control. Especially the role of CXCR5 expressing cytotoxic subsets emphasizes potential surveillance in sites of reservoir persistence and demand further study.
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Affiliation(s)
- Philipp Adams
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg.,Departments of Biomedical and Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium.,Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Gilles Iserentant
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - Jean-Yves Servais
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | | | - Guido Vanham
- Departments of Biomedical and Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium.,Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Carole Seguin-Devaux
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
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19
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Loucif H, Dagenais-Lussier X, Beji C, Cassin L, Jrade H, Tellitchenko R, Routy JP, Olagnier D, van Grevenynghe J. Lipophagy confers a key metabolic advantage that ensures protective CD8A T-cell responses against HIV-1. Autophagy 2021; 17:3408-3423. [PMID: 33459125 DOI: 10.1080/15548627.2021.1874134] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Although macroautophagy/autophagy has been proposed as a critical defense mechanism against HIV-1 by targeting viral components for degradation, its contribution as a catabolic process in providing optimal anti-HIV-1 immunity has never been addressed. The failure to restore proper antiviral CD8A/CD8 T-cell immunity, especially against HIV-1, is still the major limitation of current antiretroviral therapies. Consequently, it is of clinical imperative to provide new strategies to enhance the function of HIV-1-specific CD8A T-cells in patients under antiretroviral treatments (ART). Here, we investigated whether targeting autophagy activity could be an optional solution to make this possible. Our data show that, after both polyclonal and HIV-1-specific activation, CD8A T-cells from ART displayed reduced autophagy-dependent degradation of lysosomal contents when compared to naturally HIV-1 protected elite controllers (EC). We further confirmed in EC, by using specific BECN1 gene silencing and lysosomal inhibitors, the critical role of active autophagy in superior CD8A T-cell protection against HIV-1. More importantly, we found that an IL21 treatment was effective in rescuing the antiviral CD8A T-cell immunity from ART in an autophagy-dependent manner. Finally, we established that IL21-dependent rescue occurred due to the enhanced degradation of endogenous lipids via autophagy, referred to as lipophagy, which fueled the cellular rates of mitochondrial beta-oxidation. In summary, our data show that autophagy/lipophagy can be considered as a therapeutic tool to elicit functional antiviral CD8 T-cell responses. Our results also provide additional insights toward the development of improved T-cell-based prevention and cure strategies against HIV-1.Abbreviations: ART: patients under antiretroviral therapy; BaF: bafilomycin A1; BECN1: beclin 1; CEF: cytomegalo-, Epstein-Barr- and flu-virus peptide pool; Chloro.: chloroquine; EC: elite controllers; FAO: fatty acid beta-oxidation; HIVneg: HIV-1-uninfected control donors; IFNG/IFN-γ: interferon gamma; IL21: interleukin 21; MAP1LC3/LC3: microtubule associated protein 1 light chain 3; PBMC: peripheral blood mononuclear cells; SQSTM1: sequestosome 1; ULK1: unc-51 like autophagy activating kinase 1.
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Affiliation(s)
- Hamza Loucif
- Institut National de la Recherche Scientifique (INRS)-Centre Armand-Frappier Santé Biotechnologie
| | - Xavier Dagenais-Lussier
- Institut National de la Recherche Scientifique (INRS)-Centre Armand-Frappier Santé Biotechnologie
| | - Cherifa Beji
- Institut National de la Recherche Scientifique (INRS)-Centre Armand-Frappier Santé Biotechnologie
| | - Léna Cassin
- Institut National de la Recherche Scientifique (INRS)-Centre Armand-Frappier Santé Biotechnologie
| | - Hani Jrade
- The Sprott Center for Stem Cell Research, Regenerative Medicine Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada.,Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON, Canada.,Ottawa Institute of Systems Biology, Ottawa, ON, Canada
| | - Roman Tellitchenko
- Institut National de la Recherche Scientifique (INRS)-Centre Armand-Frappier Santé Biotechnologie
| | - Jean-Pierre Routy
- Chronic Viral Illness Service and Division of Hematology, McGill University Health Centre, Glen Site, Montreal, QC, Canada
| | - David Olagnier
- Department of Biomedicine, Research Center for Innate Immunology, Aarhus University, Aarhus C, Denmark
| | - Julien van Grevenynghe
- Institut National de la Recherche Scientifique (INRS)-Centre Armand-Frappier Santé Biotechnologie
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20
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Uruena A, Cassetti I, Kashyap N, Deleage C, Estes JD, Trindade C, Hammoud DA, Burbelo PD, Natarajan V, Dewar R, Imamichi H, Ward AJ, Poole A, Ober A, Rehm C, Jones S, Liang CJ, Chun TW, Nath A, Lane HC, Smith BR, Connors M, Migueles SA. Prolonged Posttreatment Virologic Control and Complete Seroreversion After Advanced Human Immunodeficiency Virus-1 Infection. Open Forum Infect Dis 2020; 8:ofaa613. [PMID: 33511235 DOI: 10.1093/ofid/ofaa613] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 12/09/2020] [Indexed: 12/20/2022] Open
Abstract
Background Possible human immunodeficiency virus (HIV)-1 clearance has rarely been reported. In this study, we describe a unique case of an HIV-positive, combination antiretroviral therapy (cART)-experienced woman with prior acquired immunodeficiency syndrome (AIDS) who has not experienced viral rebound for over 12 years since discontinuing cART. Methods Leukapheresis, colonoscopy, and lymph node excision were performed for detailed examination of virologic (including HIV reservoir) and immunologic features. Comparisons were made with chronically infected patients and healthy controls. Results No HIV-specific antibodies were detected in serum. Plasma HIV ribonucleic acid (RNA) levels were <0.2 copies/mL, and, except for low-frequency HIV deoxyribonucleic acid (DNA)+ cells in lymph node tissue (1 copy/3 × 106 cells), HIV antigen could not be detected by quantitative virus outgrowth (<0.0025 infectious units/106 CD4+ T cells) or by most measurements of HIV RNA or DNA in blood, lymph node, or gut-associated mononuclear cells. Human immunodeficiency virus-specific T-cell responses were detectable but low. Brain imaging revealed a prior biopsy site and persistent white matter disease since 1996. Human immunodeficiency virus DNA+ cells in the 1996 brain biopsy specimen confirmed her identity and initial HIV diagnosis. Conclusions This represents the first report of complete seroreversion, prolonged posttreatment virus suppression, a profoundly small HIV reservoir, and persistent HIV-specific T cells in an adult with prior AIDS.
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Affiliation(s)
- Analia Uruena
- Helios Salud, Ciudad Autonoma de Buenos Aires, Buenos Aires, Argentina
| | - Isabel Cassetti
- Helios Salud, Ciudad Autonoma de Buenos Aires, Buenos Aires, Argentina
| | - Neena Kashyap
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Claire Deleage
- Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Jacob D Estes
- Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Christopher Trindade
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health Clinical Center, Bethesda, Maryland, USA
| | - Dima A Hammoud
- Center for Infectious Disease Imaging, National Institutes of Health Clinical Center, Bethesda, Maryland, USA
| | - Peter D Burbelo
- Dental Clinical Research Core, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland, USA
| | - Ven Natarajan
- Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Robin Dewar
- Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Hiromi Imamichi
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Addison J Ward
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - April Poole
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Alexander Ober
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Catherine Rehm
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Sara Jones
- Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - C Jason Liang
- Biostatistics Research Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Tae-Wook Chun
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Avindra Nath
- Section of Infections of the Nervous System, National Institute of Neurologic Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
| | - H Clifford Lane
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Bryan R Smith
- Section of Infections of the Nervous System, National Institute of Neurologic Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
| | - Mark Connors
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Stephen A Migueles
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA
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21
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Therapeutic Vaccines for the Treatment of HIV. Transl Res 2020; 223:61-75. [PMID: 32438074 PMCID: PMC8188575 DOI: 10.1016/j.trsl.2020.04.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 04/08/2020] [Accepted: 04/09/2020] [Indexed: 12/18/2022]
Abstract
Despite the success of anti-retroviral therapy (ART) in transforming HIV into a manageable disease, it has become evident that long-term ART will not eliminate the HIV reservoir and cure the infection. Alternative strategies to eradicate HIV infection, or at least induce a state of viral control and drug-free remission are therefore needed. Therapeutic vaccination aims to induce or enhance immunity to alter the course of a disease. In this review we provide an overview of the current state of therapeutic HIV vaccine research and summarize the obstacles that the field faces while highlighting potential ways forward for a strategy to cure HIV infection.
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22
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Cannabinoid-Induced Immunomodulation during Viral Infections: A Focus on Mitochondria. Viruses 2020; 12:v12080875. [PMID: 32796517 PMCID: PMC7472050 DOI: 10.3390/v12080875] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 08/04/2020] [Accepted: 08/07/2020] [Indexed: 02/07/2023] Open
Abstract
This review examines the impact of cannabinoids on viral infections, as well as its effects on the mitochondria of the nervous and immune system. The paper conveys information about the beneficial and negative impacts of cannabinoids on viral infections, especially HIV-1. These include effects on the inflammatory response as well as neuroprotective effects. We also explore non-apoptotic mitochondrial pathways modulated by the activity of cannabinoids, resulting in modifications to cellular functions. As a large part of the literature derives from studies of the nervous system, we first compile the information related to mitochondrial functions in this system, particularly through the CB1 receptor. Finally, we reflect on how this knowledge could complement what has been demonstrated in the immune system, especially in the context of the CB2 receptor and Ca2+ uptake. The overall conclusion of the review is that cannabinoids have the potential to affect a broad range of cell types through mitochondrial modulation, be it through receptor-specific action or not, and that this pathway has a potential implication in cases of viral infection.
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23
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Loucif H, Dagenais-Lussier X, Beji C, Telittchenko R, Routy JP, van Grevenynghe J. Plasticity in T-cell mitochondrial metabolism: A necessary peacekeeper during the troubled times of persistent HIV-1 infection. Cytokine Growth Factor Rev 2020; 55:26-36. [PMID: 32151523 DOI: 10.1016/j.cytogfr.2020.02.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 02/08/2020] [Accepted: 02/12/2020] [Indexed: 01/02/2023]
Abstract
The notion of immuno-metabolism refers to the crosstalk between key metabolic pathways and the development/maintenance of protective immunity in the context of physiological processes and anti-microbial defenses. Enthusiasm for immuno-metabolism in the context of HIV-1 infection, especially among T-cell lineages, continues to grow over time as science opens new therapeutic perspectives to limit viral pathogenesis and to boost anti-viral responses. The idea of "metabolism as a therapeutic target" is called metabolic reprogramming and is based on the use of specific metabolism-targeting drugs that are currently available for cancer therapy. In this review, we will focus on the evidence that shows the key role of mitochondria, the cell's powerhouses, and their ability to use diverse metabolic resources (referred to as metabolic plasticity) in providing optimal immune T-cell protection among HIV-1-infected patients. Conversely, we highlight observations indicating that mitochondria metabolic dysfunction associated with excessive glucose dependency, a phenomenon reported as "Warburg effect", results in the inability to mount and maintain effective T-cell-dependent immunity during persistent HIV-1 infection. Therefore, helping mitochondria to regain the metabolic plasticity and allow specific T-cells to adapt and thrive under unfavorable environmental conditions during HIV-1 infection may represent the next generation of combinatory treatment options for patients.
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Affiliation(s)
- Hamza Loucif
- Institut National la Recherche Scientifique (INRS)-Institut Armand-Frappier, 531 Boulevard des Prairies, Laval, H7V 1B7 QC, Canada
| | - Xavier Dagenais-Lussier
- Institut National la Recherche Scientifique (INRS)-Institut Armand-Frappier, 531 Boulevard des Prairies, Laval, H7V 1B7 QC, Canada
| | - Cherifa Beji
- Institut National la Recherche Scientifique (INRS)-Institut Armand-Frappier, 531 Boulevard des Prairies, Laval, H7V 1B7 QC, Canada
| | - Roman Telittchenko
- Institut National la Recherche Scientifique (INRS)-Institut Armand-Frappier, 531 Boulevard des Prairies, Laval, H7V 1B7 QC, Canada
| | - Jean-Pierre Routy
- Chronic Viral Illness Service and Division of Hematology, McGill University Health Centre, Glen site, Montréal, QC, Canada
| | - Julien van Grevenynghe
- Institut National la Recherche Scientifique (INRS)-Institut Armand-Frappier, 531 Boulevard des Prairies, Laval, H7V 1B7 QC, Canada.
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24
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Rodríguez-Gallego E, Tarancón-Diez L, García F, Del Romero J, Benito JM, Alba V, Herrero P, Rull A, Dominguez-Molina B, Martinez-Madrid O, Martin-Pena L, Pulido F, León A, Rodríguez C, Rallón N, Peraire J, Viladés C, Leal M, Vidal F, Ruiz-Mateos E. Proteomic Profile Associated With Loss of Spontaneous Human Immunodeficiency Virus Type 1 Elite Control. J Infect Dis 2020; 219:867-876. [PMID: 30312441 DOI: 10.1093/infdis/jiy599] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 10/05/2018] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Elite controllers (ECs) spontaneously control plasma human immunodeficiency virus type 1 (HIV-1) RNA without antiretroviral therapy. However, 25% lose virological control over time. The aim of this work was to study the proteomic profile that preceded this loss of virological control to identify potential biomarkers. METHODS Plasma samples from ECs who spontaneously lost virological control (transient controllers [TCs]), at 2 years and 1 year before the loss of control, were compared with a control group of ECs who persistently maintained virological control during the same follow-up period (persistent controllers [PCs]). Comparative plasma shotgun proteomics was performed with tandem mass tag (TMT) isobaric tag labeling and nanoflow liquid chromatography coupled to Orbitrap mass spectrometry. RESULTS Eighteen proteins exhibited differences comparing PC and preloss TC timepoints. These proteins were involved in proinflammatory mechanisms, and some of them play a role in HIV-1 replication and pathogenesis and interact with structural viral proteins. Coagulation factor XI, α-1-antichymotrypsin, ficolin-2, 14-3-3 protein, and galectin-3-binding protein were considered potential biomarkers. CONCLUSIONS The proteomic signature associated with the spontaneous loss of virological control was characterized by higher levels of inflammation, transendothelial migration, and coagulation. Galectin-3 binding protein could be considered as potential biomarker for the prediction of virological progression and as therapeutic target in ECs.
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Affiliation(s)
- Esther Rodríguez-Gallego
- Hospital Universitari de Tarragona Joan XXIII, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Tarragona
| | - Laura Tarancón-Diez
- Laboratory of Immunovirology, Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville, Virgen del Rocío University Hospital/Consejo Superior de Investigaciones Científicas/University of Seville, Spain
| | - Felipe García
- Hospital Clinic-Fundació Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Centre Català d'Investigació i Desenvolupament de Vacunes contra la Sida, Universidad de Barcelona, Spain
| | - Jorge Del Romero
- Centro Sanitario Sandoval, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos, Madrid, Spain
| | - Jose Miguel Benito
- IIS-Fundación Jiménez Diaz, Universidad Autónoma de Madrid/Madrid Hospital Universitario Rey Juan Carlos, Móstoles, Spain
| | - Verónica Alba
- Hospital Universitari de Tarragona Joan XXIII, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Tarragona
| | - Pol Herrero
- Centre for Omic Sciences, Unitat Mixta Universitat Rovira i Virgili-Eurecat, Reus, Spain
| | - Anna Rull
- Hospital Universitari de Tarragona Joan XXIII, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Tarragona
| | - Beatriz Dominguez-Molina
- Laboratory of Immunovirology, Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville, Virgen del Rocío University Hospital/Consejo Superior de Investigaciones Científicas/University of Seville, Spain
| | - Onofre Martinez-Madrid
- Unidad Enfermedades Infecciosas, Hospital General Universitario Santa Lucía, Cartagena, Spain
| | - Luisa Martin-Pena
- Infectious Disease Service, Son Espases Hospital, Palma de Mallorca, Illes Balears, Spain.,Multidisciplinary Group for Infectious Disease Service, Institute of Health Sciences Research, Instituto de Investigación Sanitaria de Palma, Health Research Foundation Ramón Llull, Son Espases Hospital, Palma de Mallorca, Illes Balears
| | - Federico Pulido
- HIV Unit, Hospital Universitario 12 de Octubre, Universidad Complutense, Madrid, Spain
| | - Agathe León
- Hospital Clinic-Fundació Clinic, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Centre Català d'Investigació i Desenvolupament de Vacunes contra la Sida, Universidad de Barcelona, Spain
| | - Carmen Rodríguez
- Centro Sanitario Sandoval, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos, Madrid, Spain
| | - Norma Rallón
- IIS-Fundación Jiménez Diaz, Universidad Autónoma de Madrid/Madrid Hospital Universitario Rey Juan Carlos, Móstoles, Spain
| | - Joaquim Peraire
- Hospital Universitari de Tarragona Joan XXIII, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Tarragona
| | - Consuelo Viladés
- Hospital Universitari de Tarragona Joan XXIII, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Tarragona
| | - Manuel Leal
- Laboratory of Immunovirology, Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville, Virgen del Rocío University Hospital/Consejo Superior de Investigaciones Científicas/University of Seville, Spain.,Servicio de Medicina Interna, Hospital Viamed Santa Ángela de la Cruz, Sevilla, Spain
| | - Francesc Vidal
- Hospital Universitari de Tarragona Joan XXIII, Institut d'Investigació Sanitària Pere Virgili, Universitat Rovira i Virgili, Tarragona
| | - Ezequiel Ruiz-Mateos
- Laboratory of Immunovirology, Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville, Virgen del Rocío University Hospital/Consejo Superior de Investigaciones Científicas/University of Seville, Spain
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25
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The proportion of CD57+ cells among effector CD8+ T cells is lower in HIV controllers compared with antiretroviral therapy-treated patients. AIDS 2019; 33:2137-2147. [PMID: 31688039 DOI: 10.1097/qad.0000000000002342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND HIV infection has often been linked to faster immune ageing. We sought to determine whether or not treatment-naive spontaneous HIV-1 controllers (HICs) and ART-exposed patients differ with regard to the expression of cell senescence markers. METHODS Eighty-eight chronically infected HICs and ART-exposed patients (median time since infection: 15 years) with an undetectable plasma HIV RNA load (at least for the previous 2 years) were included. We used flow cytometry to measure immunosenescence markers (KLRG-1 and CD57) expression in fresh blood samples collected from patients and healthy donors. RESULTS For the CD8 T-cell population as a whole, the ART-exposed but not the HIC patients exhibited a much higher proportion of KLRG-1 and CD57 CD8 T cells than healthy blood donors. For the CD8 T-cell subsets, HICs had a lower proportion of CD57 effector CD8 T cells than ART patients or healthy blood donors, whereas the proportions of KLRG-1 effector were similar. A similar trend was observed for terminal effectors. No impact of age, sex or standard parameters of infection (CD4 percentage, protective HLA allele, viral blips) was observed. The difference in the proportion of CD57 cells between HICs and ART was observed more specifically in long-term infected patients (>20 years). However, whenever considering the CD57 effector memory and effector subsets, the cytotoxic granule content was greater in HICs than in ART. CONCLUSION The proportion of CD57 effector CD8 T cells is lower in HICs than in ART-exposed patients. This profile may be beneficial by ensuring limited senescence associated with consistent cytotoxic potential.
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26
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Nyanhete TE, Frisbee AL, Bradley T, Faison WJ, Robins E, Payne T, Freel SA, Sawant S, Weinhold KJ, Wiehe K, Haynes BF, Ferrari G, Li QJ, Moody MA, Tomaras GD. HLA class II-Restricted CD8+ T cells in HIV-1 Virus Controllers. Sci Rep 2019; 9:10165. [PMID: 31308388 PMCID: PMC6629643 DOI: 10.1038/s41598-019-46462-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 06/27/2019] [Indexed: 12/16/2022] Open
Abstract
A paradigm shifting study demonstrated that induction of MHC class E and II-restricted CD8+ T cells was associated with the clearance of SIV infection in rhesus macaques. Another recent study highlighted the presence of HIV-1-specific class II-restricted CD8+ T cells in HIV-1 patients who naturally control infection (virus controllers; VCs). However, questions regarding class II-restricted CD8+ T cells ontogeny, distribution across different HIV-1 disease states and their role in viral control remain unclear. In this study, we investigated the distribution and anti-viral properties of HLA-DRB1*0701 and DQB1*0501 class II-restricted CD8+ T cells in different HIV-1 patient cohorts; and whether class II-restricted CD8+ T cells represent a unique T cell subset. We show that memory class II-restricted CD8+ T cell responses were more often detectable in VCs than in chronically infected patients, but not in healthy seronegative donors. We also demonstrate that VC CD8+ T cells inhibit virus replication in both a class I- and class II-dependent manner, and that in two VC patients the class II-restricted CD8+ T cells with an anti-viral gene signature expressed both CD4+ and CD8+ T cell lineage-specific genes. These data demonstrated that anti-viral memory class II-restricted CD8+ T cells with hybrid CD4+ and CD8+ features are present during natural HIV-1 infection.
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Affiliation(s)
- Tinashe E Nyanhete
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, 27710, USA.,Department of Immunology, Duke University School of Medicine, Durham, NC, 27710, USA
| | - Alyse L Frisbee
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, 27710, USA.,University of Virginia Department of Microbiology, Immunology and Cancer Biology, 345 Crispell Drive, University of Virginia Health System, Charlottesville, Virginia, 22908, USA
| | - Todd Bradley
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, 27710, USA.,Department of Medicine, Duke University School of Medicine, Durham, NC, 27710, USA
| | - William J Faison
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, 27710, USA.,Department of Medicine, Duke University School of Medicine, Durham, NC, 27710, USA
| | - Elizabeth Robins
- Department of Immunology, Duke University School of Medicine, Durham, NC, 27710, USA
| | - Tamika Payne
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, 27710, USA.,Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, 27710, USA
| | - Stephanie A Freel
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, 27710, USA
| | - Sheetal Sawant
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, 27710, USA
| | - Kent J Weinhold
- Department of Immunology, Duke University School of Medicine, Durham, NC, 27710, USA.,Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, 27710, USA
| | - Kevin Wiehe
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, 27710, USA.,Department of Medicine, Duke University School of Medicine, Durham, NC, 27710, USA
| | - Barton F Haynes
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, 27710, USA.,Department of Immunology, Duke University School of Medicine, Durham, NC, 27710, USA.,Department of Medicine, Duke University School of Medicine, Durham, NC, 27710, USA
| | - Guido Ferrari
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, 27710, USA.,Department of Medicine, Duke University School of Medicine, Durham, NC, 27710, USA.,Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, 27710, USA
| | - Qi-Jing Li
- Department of Immunology, Duke University School of Medicine, Durham, NC, 27710, USA
| | - M Anthony Moody
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, 27710, USA.,Department of Immunology, Duke University School of Medicine, Durham, NC, 27710, USA.,Department of Pediatrics, Duke University School of Medicine, Durham, NC, 27710, USA
| | - Georgia D Tomaras
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, 27710, USA. .,Department of Immunology, Duke University School of Medicine, Durham, NC, 27710, USA. .,Department of Medicine, Duke University School of Medicine, Durham, NC, 27710, USA. .,Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, 27710, USA. .,Department of Surgery, Duke University School of Medicine, Durham, NC, 27710, USA.
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Dimorphism in the T-cell receptor constant region affects T-cell function, phenotype and HIV outcome. AIDS 2019; 33:1421-1429. [PMID: 30932962 DOI: 10.1097/qad.0000000000002187] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVES CD8 T cells recognize human leukocyte antigen-peptide complex through the T-cell receptor. Although amino acid variation in T-cell receptor variable chains often affects antigen specificity, dimorphism in the beta chain constant region (TRBC1 and TRBC2) is not thought to affect T-cell function. A recent study suggested that adoptive transfer of TRBC1-specific chimeric antigen-receptor-T cells provided an option for T-cell leukemia therapy that preserved T-cell immunity in the TRBC2 subset. This raises an important question as to whether TRBC1T cells are qualitatively different from TRBC2T cells. DESIGN Cross-sectional study. METHODS Sixty-six antiretroviral therapy-naive HIV-infected individuals, including 19 viraemic controllers and 47 noncontrollers, were enrolled. Peripheral blood mononuclear cells were isolated for T-cell functional assays, tetramer analyses, TRBC1 staining and immunophenotyping. RESULTS Viraemic controllers had a higher proportion of circulating TRBC1T cells than noncontrollers, raising the possibility that TRBC1T cells might be associated with HIV control. TRBC1T cells also showed more functional T-cell responses against both HIV and cytomegalovirus (P < 0.01). The immunophenotypes of TRBC1-bearing T cells were skewed towards naive and central memory phenotypes, whereas the majority of TRBC2-expressing T cells were terminally differentiated. Inverse correlations were observed between %TRBC1T cells and HIV plasma viral load, which was most pronounced for CD8 T cells (r = -0.7096, P = 0.00002357). CONCLUSION These data suggest that TRBC1T-cell responses are of better quality than their TRBC2 counterparts, which should be considered in immunotherapeutic strategies for HIV infection. Conversely, depletion of TRBC1T cells as part of the treatment of TRBC1 T-cell malignancies may lead to compromised T-cell response quality.
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28
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Angin M, Volant S, Passaes C, Lecuroux C, Monceaux V, Dillies MA, Valle-Casuso JC, Pancino G, Vaslin B, Le Grand R, Weiss L, Goujard C, Meyer L, Boufassa F, Müller-Trutwin M, Lambotte O, Sáez-Cirión A. Metabolic plasticity of HIV-specific CD8 + T cells is associated with enhanced antiviral potential and natural control of HIV-1 infection. Nat Metab 2019; 1:704-716. [PMID: 32694646 DOI: 10.1038/s42255-019-0081-4] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 06/05/2019] [Indexed: 12/27/2022]
Abstract
Spontaneous control of human immunodeficiency virus (HIV) is generally associated with an enhanced capacity of CD8+ T cells to eliminate infected CD4+ T cells, but the molecular characteristics of these highly functional CD8+ T cells are largely unknown. In the present study, using single-cell analysis, it was shown that HIV-specific, central memory CD8+ T cells from spontaneous HIV controllers (HICs) and antiretrovirally treated non-controllers have opposing transcriptomic profiles. Genes linked to effector functions and survival are upregulated in cells from HICs. In contrast, genes associated with activation, exhaustion and glycolysis are upregulated in cells from non-controllers. It was shown that HIV-specific CD8+ T cells from non-controllers are largely glucose dependent, whereas those from HICs have more diverse metabolic resources that enhance both their survival potential and their capacity to develop anti-HIV effector functions. The functional efficiency of the HIV-specific CD8+ T cell response in HICs is thus engraved in their memory population and related to their metabolic programme. Metabolic reprogramming in vitro through interleukin-15 treatment abrogated the glucose dependency and enhanced the antiviral potency of HIV-specific CD8+ T cells from non-controllers.
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Affiliation(s)
- Mathieu Angin
- Institut Pasteur, Unité HIV Inflammation et Persistance, Paris, France
| | - Stevenn Volant
- Institut Pasteur, Hub Bioinformatique et Biostatistique, Paris, France
| | - Caroline Passaes
- Institut Pasteur, Unité HIV Inflammation et Persistance, Paris, France
| | - Camille Lecuroux
- CEA, Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department/IBFJ, Université Paris Sud, Fontenay-aux-Roses, France
| | - Valérie Monceaux
- Institut Pasteur, Unité HIV Inflammation et Persistance, Paris, France
| | | | | | | | - Bruno Vaslin
- CEA, Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department/IBFJ, Université Paris Sud, Fontenay-aux-Roses, France
| | - Roger Le Grand
- CEA, Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department/IBFJ, Université Paris Sud, Fontenay-aux-Roses, France
| | - Laurence Weiss
- Assistance Publique Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Paris, France
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
| | - Cecile Goujard
- Assistance Publique Hôpitaux de Paris, Hôpital Bicêtre, Service de Médecine Interne et Immunologie Clinique, Le Kremlin-Bicêtre, France
| | - Laurence Meyer
- Centre de Recherche en Epidémiologie et Santé des Populations, Université Paris Sud, Le Kremlin-Bicêtre, France
| | - Faroudy Boufassa
- Centre de Recherche en Epidémiologie et Santé des Populations, Université Paris Sud, Le Kremlin-Bicêtre, France
| | | | - Olivier Lambotte
- CEA, Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department/IBFJ, Université Paris Sud, Fontenay-aux-Roses, France
- Assistance Publique Hôpitaux de Paris, Hôpital Bicêtre, Service de Médecine Interne et Immunologie Clinique, Le Kremlin-Bicêtre, France
| | - Asier Sáez-Cirión
- Institut Pasteur, Unité HIV Inflammation et Persistance, Paris, France.
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HIV Controllers Have Low Inflammation Associated with a Strong HIV-Specific Immune Response in Blood. J Virol 2019; 93:JVI.01690-18. [PMID: 30814287 DOI: 10.1128/jvi.01690-18] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 02/06/2019] [Indexed: 12/11/2022] Open
Abstract
HIV controllers (HIC) maintain control of HIV replication without combined antiretroviral treatment (cART). The mechanisms leading to virus control are not fully known. We used gene expression and cellular analyses to compare HIC and HIV-1-infected individuals under cART. In the blood, HIC are characterized by a low inflammation, a downmodulation of natural killer inhibitory cell signaling, and an upregulation of T cell activation gene expression. This balance that persists after stimulation of cells with HIV antigens was consistent with functional analyses showing a bias toward a Th1 and cytotoxic T cell response and a lower production of inflammatory cytokines. Taking advantage of the characterization of HIC based upon their CD8+ T lymphocyte capacity to suppress HIV-infection, we show here that unsupervised analysis of differentially expressed genes fits clearly with this cytotoxic activity, allowing the characterization of a specific signature of HIC. These results reveal significant features of HIC making the bridge between cellular function, gene signatures, and the regulation of inflammation and killing capacity of HIV-specific CD8+ T cells. Moreover, these genetic profiles are consistent through analyses performed from blood to peripheral blood mononuclear cells and T cells. HIC maintain strong HIV-specific immune responses with low levels of inflammation. Our findings may pave the way for new immunotherapeutic approaches leading to strong HIV-1-specific immune responses while minimizing inflammation.IMPORTANCE A small minority of HIV-infected patients, called HIV controllers (HIC), maintains spontaneous control of HIV replication. It is therefore important to identify mechanisms that contribute to the control of HIV replication that may have implications for vaccine design. We observed a low inflammation, a downmodulation of natural killer inhibitory cell signaling, and an upregulation of T-cell activation gene expression in the blood of HIC compared to patients under combined antiretroviral treatment. This profile persists following in vitro stimulation of peripheral blood mononuclear cells with HIV antigens, and was consistent with functional analyses showing a Th1 and cytotoxic T cell response and a lower production of inflammatory cytokines. These results reveal significant features of HIC that maintain strong HIV-specific immune responses with low levels of inflammation. These findings define the immune status of HIC that is probably associated with the control of viral load.
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30
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Tarancon-Diez L, Rodríguez-Gallego E, Rull A, Peraire J, Viladés C, Portilla I, Jimenez-Leon MR, Alba V, Herrero P, Leal M, Ruiz-Mateos E, Vidal F. Immunometabolism is a key factor for the persistent spontaneous elite control of HIV-1 infection. EBioMedicine 2019; 42:86-96. [PMID: 30879922 PMCID: PMC6491381 DOI: 10.1016/j.ebiom.2019.03.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 03/01/2019] [Accepted: 03/03/2019] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Approximately 25% of elite controllers (ECs) lose their virological control by mechanisms that are only partially known. Recently, immunovirological and proteomic factors have been associated to the loss of spontaneous control. Our aim was to perform a metabolomic approach to identify the underlying mechanistic pathways and potential biomarkers associated with this loss of control. METHODS Plasma samples from EC who spontaneously lost virological control (Transient Controllers, TC, n = 8), at two and one year before the loss of control, were compared with a control group of EC who persistently maintained virological control during the same follow-up period (Persistent Controllers, PC, n = 8). The determination of metabolites and plasma lipids was performed by GC-qTOF and LC-qTOF using targeted and untargeted approaches. Metabolite levels were associated with the polyfunctionality of HIV-specific CD8+T-cell response. FINDINGS Our data suggest that, before the loss of control, TCs showed a specific circulating metabolomic profile characterized by aerobic glycolytic metabolism, deregulated mitochondrial function, oxidative stress and increased immunological activation. In addition, CD8+ T-cell polyfunctionality was strongly associated with metabolite levels. Finally, valine was the main differentiating factor between TCs and PCs. INTERPRETATION All these metabolomic differences should be considered not only as potential biomarkers but also as therapeutic targets in HIV infection. FUND: This work was supported by grants from Fondo de Investigación Sanitaria, Instituto de Salud Carlos III, Fondos FEDER; Red de Investigación en Sida, Gilead Fellowship program, Spanish Ministry of Education and Spanish Ministry of Economy and Competitiveness.
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Affiliation(s)
- Laura Tarancon-Diez
- Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville, Virgen del Rocío University Hospital/CSIC/University of Seville, Spain
| | - Esther Rodríguez-Gallego
- Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
| | - Anna Rull
- Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
| | - Joaquim Peraire
- Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
| | - Consuelo Viladés
- Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
| | - Irene Portilla
- Infectious Diseases, Instituto de Investigación Sanitaria y Biomédica de Alicante, ISABIAL - FISABIO, Hospital General Universitario de Alicante, Alicante, Spain
| | - María Reyes Jimenez-Leon
- Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville, Virgen del Rocío University Hospital/CSIC/University of Seville, Spain
| | - Verónica Alba
- Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
| | - Pol Herrero
- Eurecat, Centre Tecnològic de Catalunya, Centre for Omic Sciences (COS), Joint Unit Universitat Rovira i Virgili-EURECAT, Unique Scientific and Technical Infrastructures (ICTS), Reus, Spain
| | - Manuel Leal
- Servicio de Medicina Interna, Hospital Viamed Santa Ángela de la Cruz, Sevilla, Spain; Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío, Sevilla
| | - Ezequiel Ruiz-Mateos
- Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville, Virgen del Rocío University Hospital/CSIC/University of Seville, Spain.
| | - Francesc Vidal
- Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain.
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31
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Warren JA, Clutton G, Goonetilleke N. Harnessing CD8 + T Cells Under HIV Antiretroviral Therapy. Front Immunol 2019; 10:291. [PMID: 30863403 PMCID: PMC6400228 DOI: 10.3389/fimmu.2019.00291] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 02/04/2019] [Indexed: 12/16/2022] Open
Abstract
Antiretroviral therapy (ART) has transformed HIV from a fatal disease to a chronic condition. In recent years there has been considerable interest in strategies to enable HIV-infected individuals to cease ART without viral rebound, either by purging all cells infected harboring replication-competent virus (HIV eradication), or by boosting immune responses to allow durable suppression of virus without rebound (HIV remission). Both of these approaches may need to harness HIV-specific CD8+ T cells to eliminate infected cells and/or prevent viral spread. In untreated infection, both HIV-specific and total CD8+ T cells are dysfunctional. Here, we review our current understanding of both global and HIV-specific CD8+ T cell immunity in HIV-infected individuals with durably suppressed viral load under ART, and its implications for HIV cure, eradication or remission. Overall, the literature indicates significant normalization of global T cell parameters, including CD4/8 ratio, activation status, and telomere length. Global characteristics of CD8+ T cells from HIV+ART+ individuals align more closely with those of HIV-seronegative individuals than of viremic HIV-infected individuals. However, markers of senescence remain elevated, leading to the hypothesis that immune aging is accelerated in HIV-infected individuals on ART. This phenomenon could have implications for attempts to prime de novo, or boost existing HIV-specific CD8+ T cell responses. A major challenge for both HIV cure and remission strategies is to elicit HIV-specific CD8+ T cell responses superior to that elicited by natural infection in terms of response kinetics, magnitude, breadth, viral suppressive capacity, and tissue localization. Addressing these issues will be critical to the success of HIV cure and remission attempts.
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Affiliation(s)
- Joanna A Warren
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC, United States
| | - Genevieve Clutton
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC, United States
| | - Nilu Goonetilleke
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC, United States.,UNC HIV Cure Center, University of North Carolina, Chapel Hill, NC, United States
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32
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Rosás-Umbert M, Llano A, Bellido R, Olvera A, Ruiz-Riol M, Rocafort M, Fernández MA, Cobarsi P, Crespo M, Dorrell L, Del Romero J, Alcami J, Paredes R, Brander C, Mothe B. Mechanisms of Abrupt Loss of Virus Control in a Cohort of Previous HIV Controllers. J Virol 2019; 93:e01436-18. [PMID: 30487276 PMCID: PMC6363998 DOI: 10.1128/jvi.01436-18] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 11/16/2018] [Indexed: 12/19/2022] Open
Abstract
Elite and viremic HIV controllers are able to control their HIV infection and maintain undetectable or low-level viremia in the absence of antiretroviral treatment. Despite extensive studies, the immune factors responsible for such exclusive control remain poorly defined. We identified a cohort of 14 HIV controllers that suffered an abrupt loss of HIV control (LoC) to investigate possible mechanisms and virological and immunological events related to the sudden loss of control. The in-depth analysis of these subjects involved the study of cell tropism of circulating virus, evidence for HIV superinfection, cellular immune responses to HIV, as well as an examination of viral adaptation to host immunity by Gag sequencing. Our data demonstrate that a poor capacity of T cells to mediate in vitro viral suppression, even in the context of protective HLA alleles, predicts a loss of viral control. In addition, the data suggest that inefficient viral control may be explained by an increase of CD8 T-cell activation and exhaustion before LoC. Furthermore, we detected a switch from C5- to X4-tropic viruses in 4 individuals after loss of control, suggesting that tropism shift might also contribute to disease progression in HIV controllers. The significantly reduced inhibition of in vitro viral replication and increased expression of activation and exhaustion markers preceding the abrupt loss of viral control may help identify untreated HIV controllers that are at risk of losing control and may offer a useful tool for monitoring individuals during treatment interruption phases in therapeutic vaccine trials.IMPORTANCE A few individuals can control HIV infection without the need for antiretroviral treatment and are referred to as HIV controllers. We have studied HIV controllers who suddenly lose this ability and present with high in vivo viral replication and decays in their CD4+ T-cell counts to identify potential immune and virological factors that were responsible for initial virus control. We identify in vitro-determined reductions in the ability of CD8 T cells to suppress viral control and the presence of PD-1-expressing CD8+ T cells with a naive immune phenotype as potential predictors of in vivo loss of virus control. The findings could be important for the clinical management of HIV controller individuals, and it may offer an important tool to anticipate viral rebound in individuals in clinical studies that include combination antiretroviral therapy (cART) treatment interruptions and which, if not treated quickly, could pose a significant risk to the trial participants.
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Affiliation(s)
- Miriam Rosás-Umbert
- IrsiCaixa AIDS Research Institute-HIVACAT, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
- Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Anuska Llano
- IrsiCaixa AIDS Research Institute-HIVACAT, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - Rocío Bellido
- IrsiCaixa AIDS Research Institute-HIVACAT, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - Alex Olvera
- IrsiCaixa AIDS Research Institute-HIVACAT, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - Marta Ruiz-Riol
- IrsiCaixa AIDS Research Institute-HIVACAT, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - Muntsa Rocafort
- IrsiCaixa AIDS Research Institute-HIVACAT, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - Marco A Fernández
- Flow Cytometry Facility, Health Sciences Research Institute Germans Trias i Pujol, Badalona, Spain
| | - Patricia Cobarsi
- HIV Unit, Infectious Diseases Department, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - Manel Crespo
- Infectious Diseases Unit, Internal Medicine Department, Complexo Hospitalario Universitario de Vigo, IIS Galicia Sur, Spain
| | - Lucy Dorrell
- Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
| | | | - José Alcami
- Instituto de Salud Carlos III, Madrid, Spain
| | - Roger Paredes
- IrsiCaixa AIDS Research Institute-HIVACAT, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
- Universitat Autònoma de Barcelona, Barcelona, Spain
- HIV Unit, Infectious Diseases Department, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
- University of Vic and Central Catalonia, UVIC-UCC, Vic, Spain
| | - Christian Brander
- IrsiCaixa AIDS Research Institute-HIVACAT, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
- University of Vic and Central Catalonia, UVIC-UCC, Vic, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
- AELIX Therapeutics, Barcelona, Spain
| | - Beatriz Mothe
- IrsiCaixa AIDS Research Institute-HIVACAT, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
- HIV Unit, Infectious Diseases Department, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
- University of Vic and Central Catalonia, UVIC-UCC, Vic, Spain
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High CD8 T cell percentage and HCV replication control are common features in HIV-1 controllers and HTLV-2-co-infected patients with a history of injection drug use. Virus Res 2019; 264:40-44. [PMID: 30776394 DOI: 10.1016/j.virusres.2019.02.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 02/01/2019] [Accepted: 02/14/2019] [Indexed: 02/06/2023]
Abstract
HTLV-2/HIV-1-coinfected patients and HIV-infected patients with natural HIV-1 control show an immune capacity that allows some control of viral infections. These two groups of patients have showed an immune capacity that allows them to have some control over viral infections, very strong control of HIV-1 replication in the case of HIV-1 controllers. The purpose of this retrospective cross-sectional study was to compare viral and immunologic parameters between three cohorts of Caucasian adult HIV-1-infected patients, including HIV-1 controllers (29 patients), HTLV-2/HIV-1 chronic progressors (56 patients), and HIV-1 chronic progressors (101 patients), followed in two different tertiary University Hospitals in Spain. Demographic parameters, nadir CD4 T cell count, CD4 and CD8 T cell counts and percentage, anti-HCV antibodies, HCV RNA load, HCV genotype, HIV-1 RNA loads, and anti-HTLV-2 antibodies were analyzed. HIV-1 controllers and HTLV-2/HIV-1 chronic progressors were younger and with shorter time since HIV-1 diagnosis compared to HIV-1 chronic progressors. HIV-1 controllers and HTLV-2/HIV-1 chronic progressors had significantly higher CD8 T cell percentage (p = 0.002 and p = 0.016, respectively) and lower levels of HCV RNA loads (0.015 and 0.007, respectively) compared to that of HIV-1 chronic progressors. Multivariate analyses showed that gender and HTLV-2 infection were independently associated to HCV RNA load, while only HTLV-2 infection was independently associated to CD8 T cell percentage. The implication of HTLV-2 infection in the control of HIV-1 and HCV infections is worth being further analyze.
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Cellular Determinants of HIV Persistence on Antiretroviral Therapy. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1075:213-239. [PMID: 30030795 DOI: 10.1007/978-981-13-0484-2_9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The era of antiretroviral therapy has made HIV-1 infection a manageable chronic disease for those with access to treatment. Despite treatment, virus persists in tissue reservoirs seeded with long-lived infected cells that are resistant to cell death and immune recognition. Which cells contribute to this reservoir and which factors determine their persistence are central questions that need to be answered to achieve viral eradication. In this chapter, we describe how cell susceptibility to infection, resistance to cell death, and immune-mediated killing as well as natural cell life span and turnover potential are central components that allow persistence of different lymphoid and myeloid cell subsets that were recently identified as key players in harboring latent and actively replicating virus. The relative contribution of these subsets to persistence of viral reservoir is described, and the open questions are highlighted.
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35
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Immunogenicity and Efficacy of a Novel Multi-Antigenic Peptide Vaccine Based on Cross-Reactivity between Feline and Human Immunodeficiency Viruses. Viruses 2019; 11:v11020136. [PMID: 30717485 PMCID: PMC6409633 DOI: 10.3390/v11020136] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 01/30/2019] [Accepted: 01/31/2019] [Indexed: 12/12/2022] Open
Abstract
For the development of an effective HIV-1 vaccine, evolutionarily conserved epitopes between feline and human immunodeficiency viruses (FIV and HIV-1) were determined by analyzing overlapping peptides from retroviral genomes that induced both anti-FIV/HIV T cell-immunity in the peripheral blood mononuclear cells from the FIV-vaccinated cats and the HIV-infected humans. The conserved T-cell epitopes on p24 and reverse transcriptase were selected based on their robust FIV/HIV-specific CD8⁺ cytotoxic T lymphocyte (CTL), CD4⁺ CTL, and polyfunctional T-cell activities. Four such evolutionarily conserved epitopes were formulated into four multiple antigen peptides (MAPs), mixed with an adjuvant, to be tested as FIV vaccine in cats. The immunogenicity and protective efficacy were evaluated against a pathogenic FIV. More MAP/peptide-specific CD4⁺ than CD8⁺ T-cell responses were initially observed. By post-third vaccination, half of the MAP/peptide-specific CD8⁺ T-cell responses were higher or equivalent to those of CD4⁺ T-cell responses. Upon challenge, 15/19 (78.9%) vaccinated cats were protected, whereas 6/16 (37.5%) control cats remained uninfected, resulting in a protection rate of 66.3% preventable fraction (p = 0.0180). Thus, the selection method used to identify the protective FIV peptides should be useful in identifying protective HIV-1 peptides needed for a highly protective HIV-1 vaccine in humans.
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Avettand‐Fenoel V, Bayan T, Gardiennet E, Boufassa F, Lopez P, Lecuroux C, Noel N, Trémeaux P, Monceaux V, Autran B, Meyer L, Saez‐Cirion A, Lambotte O, Rouzioux C. Dynamics in HIV-DNA levels over time in HIV controllers. J Int AIDS Soc 2019; 22:e25221. [PMID: 30629340 PMCID: PMC6327944 DOI: 10.1002/jia2.25221] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Accepted: 12/03/2018] [Indexed: 11/09/2022] Open
Abstract
INTRODUCTION HIV controllers (HIC) maintain viraemia at low levels without antiretroviral treatment and have small HIV reservoirs. Nevertheless, they are heterogeneous regarding their risk of infection progression. The study of reservoirs can help elucidate this control. This study aimed to explore the factors implicated in the pathogenesis of HIV infection that are potentially associated with HIV reservoirs and their dynamics in HIC. METHODS Individuals living with HIV included in the ANRS-CODEX cohort with at least two HIV-DNA measurements between 2009 and 2016 were selected. The total HIV-DNA levels had been quantified prospectively from blood samples. Mixed-effect linear models estimated the HIV-DNA dynamics over time. RESULTS The median (interquartile range (IQR)) HIV-DNA level was 1.5 (1.3 to 1.9) log copies/million peripheral blood mononuclear cells at inclusion (n = 202 individuals). These low levels showed heterogeneity among HIC. Lower levels were then associated with the protective HLA-B*27/B*57 alleles and/or lower HIV-RNA level at inclusion, negative hepatitis C virus serology, lower HIV-suppressive capacity of specific CD8 T cells and lower levels of immune activation and inflammation. Interestingly, mathematical modelling of the dynamics of HIV-DNA over time (840 measurements) showed that the number of infected cells decreased in 46% of HIC (follow-up: 47.6 months) and increased in 54% of HIC. A multivariate analysis indicated that HLA-B*27/B*57 alleles, a low level of HIV-RNA and a low level of HIV-DNA at inclusion were markers independently associated with this decrease. CONCLUSIONS These results offer new insights into the mechanisms of long-term control in HIC. In half of HIC, the decrease in HIV-DNA level could be linked to tighter viral control and progressive loss of infected cells. These findings allow the identification of HIC with a low risk of progression who may not need treatment.
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Affiliation(s)
- Véronique Avettand‐Fenoel
- Université Paris DescartesSorbonne Paris CitéParisFrance
- AP‐HPLaboratoire de VirologieCHU Necker‐Enfants MaladesParisFrance
| | - Tatiana Bayan
- INSERM CESP U1018Université Paris SudLe Kremlin BicêtreFrance
| | | | | | - Pauline Lopez
- Université Paris DescartesSorbonne Paris CitéParisFrance
| | - Camille Lecuroux
- INSERM UMR 1184Immunologie des Maladies Virales et Autoimmunes (IMVA)Université Paris SudLe Kremlin BicêtreFrance
- CEADSV/iMETIDivision of Immuno‐VirologyIDMITFontenay aux RosesFrance
| | - Nicolas Noel
- INSERM UMR 1184Immunologie des Maladies Virales et Autoimmunes (IMVA)Université Paris SudLe Kremlin BicêtreFrance
- CEADSV/iMETIDivision of Immuno‐VirologyIDMITFontenay aux RosesFrance
| | - Pauline Trémeaux
- Université Paris DescartesSorbonne Paris CitéParisFrance
- AP‐HPLaboratoire de VirologieCHU CochinParisFrance
| | - Valérie Monceaux
- Institut PasteurUnité HIV inflammation et persistanceParisFrance
| | - Brigitte Autran
- Cellular Immunology LaboratoryUniversité Pierre and Marie CurieINSERMUMRS 945ParisFrance
| | - Laurence Meyer
- INSERM CESP U1018Université Paris SudLe Kremlin BicêtreFrance
| | | | - Olivier Lambotte
- INSERM UMR 1184Immunologie des Maladies Virales et Autoimmunes (IMVA)Université Paris SudLe Kremlin BicêtreFrance
- CEADSV/iMETIDivision of Immuno‐VirologyIDMITFontenay aux RosesFrance
- AP‐HP, CHU BicêtreService de Médecine Interne et Immunologie CliniqueLe Kremlin‐BicêtreFrance
- Université Paris SudUMR 1184Le Kremlin‐BicêtreFrance
| | - Christine Rouzioux
- Université Paris DescartesSorbonne Paris CitéParisFrance
- AP‐HPLaboratoire de VirologieCHU Necker‐Enfants MaladesParisFrance
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Chowdhury FZ, Ouyang Z, Buzon M, Walker BD, Lichterfeld M, Yu XG. Metabolic pathway activation distinguishes transcriptional signatures of CD8+ T cells from HIV-1 elite controllers. AIDS 2018; 32:2669-2677. [PMID: 30289807 DOI: 10.1097/qad.0000000000002007] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Elite controllers, defined as persons maintaining undetectable levels of HIV-1 replication in the absence of antiretroviral therapy, represent living evidence that sustained, natural control of HIV-1 is possible, at least in relatively rare instances. Understanding the complex immunologic and virologic characteristics of these specific patients holds promise for inducing drug-free control of HIV-1 in broader populations of HIV-1 infected patients. DESIGN We used an unbiased transcriptional profiling approach to characterize CD8+ T cells, the strongest correlate of HIV-1 immune control identified thus far, in a large cohort of elite controllers (n = 51); highly active antiretrovial therapy (HAART)-treated patients (n = 32) and HIV-1 negative (n = 10) served as reference cohorts. METHODS We isolated mRNA from total CD8+ T cells isolated from peripheral blood mononuclear cell (PBMC) of each individual followed by microarray analysis of the transcriptional signatures. RESULTS We observed profound transcriptional differences [590 transcripts, false discovery rate (FDR)-adjusted P < 0.05] between elite controller and HAART-treated patients. Interestingly, metabolic and signalling pathways governed by mammalian target of rapamycin (mTOR) and eIF2, known for their key roles in regulating cellular growth, proliferation and metabolism, were among the top functions enriched in the differentially expressed genes, suggesting a therapeutically actionable target as a distinguishing feature of spontaneous HIV-1 immune control. A subsequent bootstrapping approach distinguished five different subgroups of elite controller, each characterized by distinct transcriptional signatures. However, despite this marked heterogeneity, differential regulation of mTOR and eIF2 signalling remained the dominant functional pathway in three of these elite controller subgroups. CONCLUSION These studies suggest that mTOR and eIF2 signalling may play a remarkably universal role for regulating CD8 T-cell function from elite controllers.
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Caetano DG, Côrtes FH, Bello G, Teixeira SLM, Hoagland B, Grinsztejn B, Veloso VG, Guimarães ML, Morgado MG. Next-generation sequencing analyses of the emergence and maintenance of mutations in CTL epitopes in HIV controllers with differential viremia control. Retrovirology 2018; 15:62. [PMID: 30201008 PMCID: PMC6131818 DOI: 10.1186/s12977-018-0444-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 09/05/2018] [Indexed: 01/10/2023] Open
Abstract
Background Despite the low level of viral replication in HIV controllers (HICs), studies have reported viral mutations related to escape from cytotoxic T-lymphocyte (CTL) response in HIV-1 plasma sequences. Thus, evaluating the dynamics of the emergence of CTL-escape mutants in HICs reservoirs is important for understanding viremia control. To analyze the HIV-1 mutational profile and dynamics of CTL-escape mutants in HICs, we selected 11 long-term non-progressor individuals and divided them into the following groups: (1) viremic controllers (VCs; n = 5) and (2) elite controllers (ECs; n = 6). For each individual, we used HIV-1 proviral DNA from PBMCs related to earliest (VE) and latest (VL) visits to obtain gag and nef sequences using the Illumina HiSeq system. The consensus of each mapped gene was used to assess viral divergence, and next-generation sequencing data were employed to identify SNPs and variations within and flanking CTL epitopes. Results Divergence analysis showed higher values for nef compared to gag among the HICs. EC and VC groups showed similar divergence rates for both genes. Analysis of the number of SNPs showed that VCs present more variability in both genes. Synonymous/non-synonymous mutation ratios were < 1 for gag among ECs and for nef among ECs and VCs, exhibiting a predominance of non-synonymous mutations. Such mutations were observed in regions encoding CTL-restricted epitopes in all individuals. All ECs presented non-synonymous mutations in CTL epitopes but generally at low frequency (< 1%); all VCs showed a high number of mutations, with significant frequency changes between VE and VL visits. A higher frequency of internal mutations was observed for gag epitopes, with significant changes across visits compared to Nef epitopes, indicating a pattern associated with differential genetic pressure. Conclusions The high genetic conservation of HIV-1 gag and nef among ECs indicates that the higher level of viremia control restricts the evolution of both genes. Although viral replication levels in HICs are low or undetectable, all individuals exhibited CTL epitope mutations in proviral gag and nef variants, indicating that potential CTL escape mutants are present in HIC reservoirs and that situations leading to a disequilibrium of the host-virus relationship can result in the spread of CTL-escape variants. Electronic supplementary material The online version of this article (10.1186/s12977-018-0444-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Diogo Gama Caetano
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz -FIOCRUZ, Av. Brasil 4365, Rio de Janeiro, RJ, 21045-900, Brazil
| | - Fernanda Heloise Côrtes
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz -FIOCRUZ, Av. Brasil 4365, Rio de Janeiro, RJ, 21045-900, Brazil
| | - Gonzalo Bello
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz -FIOCRUZ, Av. Brasil 4365, Rio de Janeiro, RJ, 21045-900, Brazil
| | - Sylvia Lopes Maia Teixeira
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz -FIOCRUZ, Av. Brasil 4365, Rio de Janeiro, RJ, 21045-900, Brazil
| | - Brenda Hoagland
- Laboratório de Pesquisa Clínica em DST e Aids, Instituto Nacional de Infectologia Evandro Chagas (INI)-FIOCRUZ, Rio de Janeiro, Brazil
| | - Beatriz Grinsztejn
- Laboratório de Pesquisa Clínica em DST e Aids, Instituto Nacional de Infectologia Evandro Chagas (INI)-FIOCRUZ, Rio de Janeiro, Brazil
| | - Valdilea Gonçalves Veloso
- Laboratório de Pesquisa Clínica em DST e Aids, Instituto Nacional de Infectologia Evandro Chagas (INI)-FIOCRUZ, Rio de Janeiro, Brazil
| | - Monick Lindenmeyer Guimarães
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz -FIOCRUZ, Av. Brasil 4365, Rio de Janeiro, RJ, 21045-900, Brazil
| | - Mariza Gonçalves Morgado
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz -FIOCRUZ, Av. Brasil 4365, Rio de Janeiro, RJ, 21045-900, Brazil.
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Côrtes FH, de Paula HHS, Bello G, Ribeiro-Alves M, de Azevedo SSD, Caetano DG, Teixeira SLM, Hoagland B, Grinsztejn B, Veloso VG, Guimarães ML, Morgado MG. Plasmatic Levels of IL-18, IP-10, and Activated CD8 + T Cells Are Potential Biomarkers to Identify HIV-1 Elite Controllers With a True Functional Cure Profile. Front Immunol 2018; 9:1576. [PMID: 30050532 PMCID: PMC6050358 DOI: 10.3389/fimmu.2018.01576] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 06/25/2018] [Indexed: 12/11/2022] Open
Abstract
Elite controllers (ECs) are rare individuals able to naturally control HIV-1 replication below the detection limit of viral load (VL) commercial assays. It is unclear, however, whether ECs might be considered a natural model of a functional cure because some studies have noted CD4+ T cell depletion and disease progression associated with abnormally high levels of immune activation and/or inflammation in this group. Here, we propose the use of immunological parameters to identify HIV-1 ECs that could represent the best model of a functional cure. We compared plasma levels of six inflammatory biomarkers (IP-10, IL-18, sCD163, sCD14, CRP, and IL-6) and percentages of activated CD8+ T cells (CD38+HLA-DR+) between 15 ECs [8 with persistent undetectable viremia (persistent elite controllers) and 7 with occasional viral blips (ebbing elite controllers)], 13 viremic controllers (VCs—plasma VL between 51 and 2,000 RNA copies/mL), and 18 HIV-1 infected patients in combined antiretroviral therapy, with suppressed viremia, and 18 HIV-uninfected controls (HIV-neg). The two groups of ECs presented inflammation and activation profiles similar to HIV-neg individuals, and there was no evidence of CD4+ T cell decline over time. VCs, by contrast, had higher levels of IL-18, IP-10, and CRP and a lower CD4/CD8 ratio than that of HIV-neg (P < 0.05). Plasma levels of IL-18 and IP-10 correlated positively with CD8+ T cell activation and negatively with both CD4/CD8 and CD4% in HIV-1 controllers. These results suggest that most ECs, defined using stringent criteria in relation to the cutoff level of viremia (≤50 copies/mL) and a minimum follow-up time of >5 years, show no evidence of persistent inflammation or immune activation. This study further suggests that plasmatic levels of IL-18/IP-10 combined with the frequency of CD8+CD38+HLA-DR+ T cells can be important biomarkers to identify models of a functional cure among HIV-1 ECs.
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Affiliation(s)
- Fernanda H Côrtes
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - Hury H S de Paula
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - Gonzalo Bello
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - Marcelo Ribeiro-Alves
- Laboratório de Pesquisa Clínica em DST/Aids, Instituto Nacional de Infectologia Evandro Chagas, FIOCRUZ, Rio de Janeiro, Brazil
| | - Suwellen S D de Azevedo
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - Diogo G Caetano
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - Sylvia L M Teixeira
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - Brenda Hoagland
- Laboratório de Pesquisa Clínica em DST/Aids, Instituto Nacional de Infectologia Evandro Chagas, FIOCRUZ, Rio de Janeiro, Brazil
| | - Beatriz Grinsztejn
- Laboratório de Pesquisa Clínica em DST/Aids, Instituto Nacional de Infectologia Evandro Chagas, FIOCRUZ, Rio de Janeiro, Brazil
| | - Valdilea G Veloso
- Laboratório de Pesquisa Clínica em DST/Aids, Instituto Nacional de Infectologia Evandro Chagas, FIOCRUZ, Rio de Janeiro, Brazil
| | - Monick L Guimarães
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - Mariza G Morgado
- Laboratório de Aids e Imunologia Molecular, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
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Sahay B, Yamamoto JK. Lessons Learned in Developing a Commercial FIV Vaccine: The Immunity Required for an Effective HIV-1 Vaccine. Viruses 2018; 10:v10050277. [PMID: 29789450 PMCID: PMC5977270 DOI: 10.3390/v10050277] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 05/08/2018] [Accepted: 05/20/2018] [Indexed: 11/16/2022] Open
Abstract
The feline immunodeficiency virus (FIV) vaccine called Fel-O-Vax® FIV is the first commercial FIV vaccine released worldwide for the use in domestic cats against global FIV subtypes (A⁻E). This vaccine consists of inactivated dual-subtype (A plus D) FIV-infected cells, whereas its prototype vaccine consists of inactivated dual-subtype whole viruses. Both vaccines in experimental trials conferred moderate-to-substantial protection against heterologous strains from homologous and heterologous subtypes. Importantly, a recent case-control field study of Fel-O-Vax-vaccinated cats with outdoor access and ≥3 years of annual vaccine boost, resulted in a vaccine efficacy of 56% in Australia where subtype-A viruses prevail. Remarkably, this protection rate is far better than the protection rate of 31.2% observed in the best HIV-1 vaccine (RV144) trial. Current review describes the findings from the commercial and prototype vaccine trials and compares their immune correlates of protection. The studies described in this review demonstrate the overarching importance of ant-FIV T-cell immunity more than anti-FIV antibody immunity in affording protection. Thus, future efforts in developing the next generation FIV vaccine and the first effective HIV-1 vaccine should consider incorporating highly conserved protective T-cell epitopes together with the conserved protective B-cell epitopes, but without inducing adverse factors that eliminate efficacy.
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Affiliation(s)
- Bikash Sahay
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, P.O. Box 110880, Gainesville, FL 32611-0880, USA.
| | - Janet K Yamamoto
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, P.O. Box 110880, Gainesville, FL 32611-0880, USA.
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Pernas M, Tarancón-Diez L, Rodríguez-Gallego E, Gómez J, Prado JG, Casado C, Dominguez-Molina B, Olivares I, Coiras M, León A, Rodriguez C, Benito JM, Rallón N, Plana M, Martinez-Madrid O, Dapena M, Iribarren JA, Del Romero J, García F, Alcamí J, Muñoz-Fernández M, Vidal F, Leal M, Lopez-Galindez C, Ruiz-Mateos E. Factors Leading to the Loss of Natural Elite Control of HIV-1 Infection. J Virol 2018; 92:e01805-17. [PMID: 29212942 PMCID: PMC5809746 DOI: 10.1128/jvi.01805-17] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 11/20/2017] [Indexed: 12/15/2022] Open
Abstract
HIV-1 elite controllers (EC) maintain undetectable viral loads (VL) in the absence of antiretroviral treatment. However, these subjects have heterogeneous clinical outcomes, including a proportion that loses HIV-1 control over time. In this work, we compared, in a longitudinal design, transient EC, analyzed before and after the loss of virological control, with persistent EC. The aim was to identify factors leading to the loss of natural virological control of HIV-1 infection with a longitudinal retrospective study design. Gag-specific T-cell responses were assessed by in vitro intracellular polycytokine production quantified by flow cytometry. Viral diversity determinations and sequence dating were performed in proviral DNA by PCR amplification at limiting dilution of env and gag genes. The expression profile of 70 serum cytokines and chemokines was assessed by multiplex immunoassays. We identified transient EC as subjects with low Gag-specific T-cell polyfunctionality, high viral diversity, and high proinflammatory cytokine levels before the loss of control. Gag-specific T-cell polyfunctionality was inversely associated with viral diversity in transient controllers before the loss of control (r = -0.8; P = 0.02). RANTES was a potential biomarker of transient control. This study identified virological and immunological factors, including inflammatory biomarkers associated with two different phenotypes within EC. These results may allow a more accurate definition of EC, which could help in better clinical management of these individuals and in the development of future curative approaches.IMPORTANCE There is a rare group of HIV-infected patients who have the extraordinary capacity to maintain undetectable viral load levels in the absence of antiretroviral treatment, the so-called HIV-1 elite controllers (EC). However, there is a proportion within these subjects that eventually loses this capability. In this work, we found differences in virological and immune factors, including soluble inflammatory biomarkers, between subjects with persistent control of viral replication and EC that will lose virological control. The identification of these factors could be a key point for a right medical care of those EC who are going to lose natural control of viral replication and for the design of future immunotherapeutic strategies using as a model the natural persistent control of HIV infection.
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Affiliation(s)
- María Pernas
- Virologia Molecular Unit, Laboratory of Research and Reference in Retrovirus, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid
| | - Laura Tarancón-Diez
- Laboratory of Immunovirology, Institute of Biomedicine of Seville, Virgen del Rocío University Hospital/CSIC/University of Seville, Seville, Spain
| | - Esther Rodríguez-Gallego
- Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
| | - Josep Gómez
- Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
| | - Julia G Prado
- AIDS Research Institute-IrsiCaixa, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol, Universitat Autònoma de Barcelona, Badalona, Spain
| | - Concepción Casado
- Virologia Molecular Unit, Laboratory of Research and Reference in Retrovirus, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid
| | - Beatriz Dominguez-Molina
- Laboratory of Immunovirology, Institute of Biomedicine of Seville, Virgen del Rocío University Hospital/CSIC/University of Seville, Seville, Spain
| | - Isabel Olivares
- Virologia Molecular Unit, Laboratory of Research and Reference in Retrovirus, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid
| | - Maite Coiras
- AIDS Immunopathology Unit, Laboratory of Research and Reference in Retrovirus, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Agathe León
- Hospital Clinic-Fundació Clinic, IDIBAPS, HIVACAT, Universidad de Barcelona, Barcelona, Spain
| | - Carmen Rodriguez
- Centro Sanitario Sandoval, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Jose Miguel Benito
- IIS-Fundación Jiménez Diaz, UAM, Madrid, Hospital Universitario Rey Juan Carlos, Móstoles, Spain
| | - Norma Rallón
- IIS-Fundación Jiménez Diaz, UAM, Madrid, Hospital Universitario Rey Juan Carlos, Móstoles, Spain
| | - Montserrat Plana
- Hospital Clinic-Fundació Clinic, IDIBAPS, HIVACAT, Universidad de Barcelona, Barcelona, Spain
| | - Onofre Martinez-Madrid
- Unidad Enfermedades Infecciosas, Hospital Gral Universitario Santa Lucía, Cartagena, Spain
| | - Marta Dapena
- Servicio de Enfermedades Infecciosas, Hospital General de Castellón, Castellón, Spain
| | - Jose Antonio Iribarren
- Servicio de Enfermedades Infecciosas, Hospital Universitario Donostia, San Sebastián, Spain
| | - Jorge Del Romero
- Centro Sanitario Sandoval, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Madrid, Spain
| | - Felipe García
- Hospital Clinic-Fundació Clinic, IDIBAPS, HIVACAT, Universidad de Barcelona, Barcelona, Spain
| | - José Alcamí
- AIDS Immunopathology Unit, Laboratory of Research and Reference in Retrovirus, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - MaÁngeles Muñoz-Fernández
- Laboratory of Molecular Immuno-Biology, Hospital General Universitario Gregorio Marañón, IiSGM, CIBER BBN, Spanish HIV HGM BioBank, Madrid, Spain
| | - Francisco Vidal
- Hospital Universitari de Tarragona Joan XXIII, IISPV, Universitat Rovira i Virgili, Tarragona, Spain
| | - Manuel Leal
- Laboratory of Immunovirology, Institute of Biomedicine of Seville, Virgen del Rocío University Hospital/CSIC/University of Seville, Seville, Spain
| | - Cecilio Lopez-Galindez
- Virologia Molecular Unit, Laboratory of Research and Reference in Retrovirus, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid
| | - Ezequiel Ruiz-Mateos
- Clinic Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville, IBiS, Virgen del Rocío University Hospital/CSIC/University of Seville, Seville, Spain
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Leitman EM, Willberg CB, Tsai MH, Chen H, Buus S, Chen F, Riddell L, Haas D, Fellay J, Goedert JJ, Piechocka-Trocha A, Walker BD, Martin J, Deeks S, Wolinsky SM, Martinson J, Martin M, Qi Y, Sáez-Cirión A, Yang OO, Matthews PC, Carrington M, Goulder PJR. HLA-B*14:02-Restricted Env-Specific CD8 + T-Cell Activity Has Highly Potent Antiviral Efficacy Associated with Immune Control of HIV Infection. J Virol 2017; 91:e00544-17. [PMID: 28878089 PMCID: PMC5660483 DOI: 10.1128/jvi.00544-17] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 08/21/2017] [Indexed: 12/19/2022] Open
Abstract
Immune control of human immunodeficiency virus type 1 (HIV) infection is typically associated with effective Gag-specific CD8+ T-cell responses. We here focus on HLA-B*14, which protects against HIV disease progression, but the immunodominant HLA-B*14-restricted anti-HIV response is Env specific (ERYLKDQQL, HLA-B*14-EL9). A subdominant HLA-B*14-restricted response targets Gag (DRYFKTLRA, HLA-B*14-DA9). Using HLA-B*14/peptide-saporin-conjugated tetramers, we show that HLA-B*14-EL9 is substantially more potent at inhibiting viral replication than HLA-B*14-DA9. HLA-B*14-EL9 also has significantly higher functional avidity (P < 0.0001) and drives stronger selection pressure on the virus than HLA-B*14-DA9. However, these differences were HLA-B*14 subtype specific, applying only to HLA-B*14:02 and not to HLA-B*14:01. Furthermore, the HLA-B*14-associated protection against HIV disease progression is significantly greater for HLA-B*14:02 than for HLA-B*14:01, consistent with the superior antiviral efficacy of the HLA-B*14-EL9 response. Thus, although Gag-specific CD8+ T-cell responses may usually have greater anti-HIV efficacy, factors independent of protein specificity, including functional avidity of individual responses, are also critically important to immune control of HIV.IMPORTANCE In HIV infection, although cytotoxic T lymphocytes (CTL) play a potentially critical role in eradication of viral reservoirs, the features that constitute an effective response remain poorly defined. We focus on HLA-B*14, unique among HLAs associated with control of HIV in that the dominant CTL response is Env specific, not Gag specific. We demonstrate that Env-specific HLA-B*14-restricted activity is substantially more efficacious than the subdominant HLA-B*14-restricted Gag response. Env immunodominance over Gag and strong Env-mediated selection pressure on HIV are observed only in subjects expressing HLA-B*14:02, and not HLA-B*14:01. This reflects the increased functional avidity of the Env response over Gag, substantially more marked for HLA-B*14:02. Finally, we show that HLA-B*14:02 is significantly more strongly associated with viremic control than HLA-B*14:01. These findings indicate that, although Gag-specific CTL may usually have greater anti-HIV efficacy than Env responses, factors independent of protein specificity, including functional avidity, may carry greater weight in mediating effective control of HIV.
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Affiliation(s)
- Ellen M Leitman
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
- Harvard Medical School, Boston, Massachusetts, USA
| | | | - Ming-Han Tsai
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
| | - Huabiao Chen
- Ragon Institute of MGH, MIT and Harvard, Boston, Massachusetts, USA
- Vaccine and Immunotherapy Center, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Søren Buus
- Laboratory of Experimental Immunology, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Fabian Chen
- Department of Sexual Health, Royal Berkshire Hospital, Reading, United Kingdom
| | - Lynn Riddell
- Integrated Sexual Health Services, Northamptonshire Healthcare NHS Trust, Northampton, United Kingdom
| | - David Haas
- Departments of Medicine, Pharmacology, Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Jacques Fellay
- School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - James J Goedert
- Infections and Immunoepidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | | | - Bruce D Walker
- Ragon Institute of MGH, MIT and Harvard, Boston, Massachusetts, USA
- HIV Pathogenesis Programme, The Doris Duke Medical Research Institute, University of KwaZulu-Natal, Durban, South Africa
| | - Jeffrey Martin
- Department of Medicine, University of California San Francisco Department of Epidemiology and Biostatistics, University of California San Francisco, San Francisco, California, USA
| | - Steven Deeks
- Department of Medicine, University of California, San Francisco, California, USA
| | - Steven M Wolinsky
- Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
- Division of Infectious Diseases, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Jeremy Martinson
- Department of Infectious Diseases and Microbiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Maureen Martin
- Cancer and Inflammation Program, Leidos Biomedical Research, Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Ying Qi
- Cancer and Inflammation Program, Leidos Biomedical Research, Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Asier Sáez-Cirión
- Institut Pasteur, Unité HIV, Inflammation et Persistance, Paris, France
| | - Otto O Yang
- Department of Medicine, Geffen School of Medicine, University of California Los Angeles, Los Angeles, California, USA
- AIDS Healthcare Foundation, Los Angeles, California, USA
| | - Philippa C Matthews
- Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
- Department of Infectious Diseases and Microbiology, Oxford University Hospitals NHS Foundation Trust, John Radcliffe Hospital, Oxford, United Kingdom
| | - Mary Carrington
- Ragon Institute of MGH, MIT and Harvard, Boston, Massachusetts, USA
- Cancer and Inflammation Program, Leidos Biomedical Research, Frederick National Laboratory for Cancer Research, Frederick, Maryland, USA
| | - Philip J R Goulder
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
- HIV Pathogenesis Programme, The Doris Duke Medical Research Institute, University of KwaZulu-Natal, Durban, South Africa
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Control of the HIV-1 DNA Reservoir Is Associated In Vivo and In Vitro with NKp46/NKp30 (CD335 CD337) Inducibility and Interferon Gamma Production by Transcriptionally Unique NK Cells. J Virol 2017; 91:JVI.00647-17. [PMID: 28956765 DOI: 10.1128/jvi.00647-17] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 09/18/2017] [Indexed: 12/12/2022] Open
Abstract
The size of lentiviral DNA reservoirs reflects the effectiveness of immune responses against lentiviruses. So far, abundant information has been gathered on the control of HIV-1 replication. Understanding the innate mechanisms contributing to containment of the HIV DNA reservoir, however, are only partly clarified and are relevant to guiding interventions for reservoir containment or eradication. We studied the contribution of natural killer (NK) cell functional features in HIV patients controlling replication either spontaneously (HIV controllers [HIC]) or after progression and antiretroviral treatment (progressor patients [PP]). An inverse correlation between HIV DNA copy numbers (either total or integrated) in circulating CD4+ cells and NK cell function was observed. Induced interferon gamma (IFN-γ) production and NKp46/NKp30 activating receptor-induced expression correlated inversely with reservoir size. The correlation was present not only for a homogeneous cohort of HIC patients but also when PP were included in the analysis. Adaptive (NKG2C+ CD57+) NK cell features were not associated with reservoir size. However, a distinct set of 370 differentially expressed transcripts was found to underlie functional differences in NK cells controlling HIV DNA reservoir size. In proof-of-principle in vitro experiments of CD4+ cell infection with HIV-1, purified NK cells with the above-mentioned functional/transcriptional features displayed 10- and 30-fold higher abilities to control HIV replication and DNA burdens in vitro, respectively, than those of other NK cells. Thus, NK cells with a specific functional and transcriptional signature contribute to control of the HIV reservoir in CD4+ cells. Their selection, expansion, and/or adoptive transfer may support strategies to eradicate HIV-1 infection or to safely deescalate antiretroviral treatment.IMPORTANCE The most relevant feature of HIV-1 infection is represented by its DNA reservoir size in the body, which guarantees lifelong infection and resumption of virus replication after antiretroviral treatment interruption. So far, there has been little success in the identification of factors contributing to HIV-1 reservoir containment. In this study, by studying quantitative total and integrated HIV-1 DNA levels and NK cells in HIV-1 patients with either progressive or nonprogressive disease, we observed that inducible IFN-γ and natural cytotoxicity receptor (NCR) expression in a specific subset of NK cells with a characteristic transcriptional signature represents a correlate for HIV-1 reservoir control. This represents an advance in our understanding of the mechanism(s) that controls the lentivirus reservoir. Monitoring, selection, expansion, and adoptive transfer of these NK cells may allow monitoring of treatment efficacy and the likelihood of reservoir control and may support protocols for HIV-1 eradication.
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Abstract
Despite major advances in antiretroviral therapy against HIV-1, an effective HIV vaccine is urgently required to reduce the number of new cases of HIV infections in the world. Vaccines are the ultimate tool in the medical arsenal to control and prevent the spread of infectious diseases such as HIV/AIDS. Several failed phase-IIb to –III clinical vaccine trials against HIV-1 in the past generated a plethora of information that could be used for better designing of an effective HIV vaccine in the future. Most of the tested vaccine candidates produced strong humoral responses against the HIV proteins; however, failed to protect due to: 1) the low levels and the narrow breadth of the HIV-1 neutralizing antibodies and the HIV-specific antibody-dependent Fc-mediated effector activities, 2) the low levels and the poor quality of the anti-HIV T-cell responses, and 3) the excessive responses to immunodominant non-protective HIV epitopes, which in some cases blocked the protective immunity and/or enhanced HIV infection. The B-cell epitopes on HIV for producing broadly neutralizing antibodies (bNAbs) against HIV have been extensively characterized, and the next step is to develop bNAb epitope immunogen for HIV vaccine. The bNAb epitopes are often conformational epitopes and therefore more difficult to construct as vaccine immunogen and likely to include immunodominant non-protective HIV epitopes. In comparison, T-cell epitopes are short linear peptides which are easier to construct into vaccine immunogen free of immunodominant non-protective epitopes. However, its difficulty lies in identifying the T-cell epitopes conserved among HIV subtypes and induce long-lasting, potent polyfunctional T-cell and cytotoxic T lymphocyte (CTL) activities against HIV. In addition, these protective T-cell epitopes must be recognized by the HLA prevalent in the country(s) targeted for the vaccine trial. In conclusion, extending from the findings from previous vaccine trials, future vaccines should combine both T- and B-cell epitopes as vaccine immunogen to induce multitude of broad and potent immune effector activities required for sterilizing protection against global HIV subtypes.
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Affiliation(s)
- Bikash Sahay
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, P.O. Box 110880, Gainesville, FL 32611-0880, USA
| | - Cuong Q Nguyen
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, P.O. Box 110880, Gainesville, FL 32611-0880, USA
| | - Janet K Yamamoto
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, P.O. Box 110880, Gainesville, FL 32611-0880, USA
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Therapeutic vaccines and immunological intervention in HIV infection: a paradigm change. Curr Opin HIV AIDS 2017; 11:576-584. [PMID: 27607591 DOI: 10.1097/coh.0000000000000324] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
PURPOSE OF REVIEW The purpose is to review current knowledge of immunological interventions in HIV infection and discuss strategies for the establishment of functional cure and/or HIV eradication. RECENT FINDINGS Therapeutic vaccines and cytokines have been historically the immunological interventions developed with the objective to enhance the HIV-specific cell-mediated immune responses and to suppress virus replication. Both these interventions have shown only partial antiviral effects. The recent identification and generation of human broad neutralizing antibodies provides potent immunological intervention associated with effective suppression of virus replication in the absence of antiretroviral therapy. Furthermore, the identification that the major HIV cell reservoir containing replication competent and infectious virus is composed by programed cell death protein 1 (PD-1) positive memory CD4 T cells offers the opportunity to target directly the HIV cell reservoir with anti-PD-1 antibodies. Anti-PD-1 antibody therapy may be also critical to prevent exhaustion of CD8 T cells. SUMMARY The availability of a diverse armamentarium of immunological intervention offers the opportunity to investigate the efficacy of the combined use of different immunological interventions in inducing prolonged virus suppression in the absence of antiretroviral therapy and functional cure HIV or HIV eradication.
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Gonzalez SM, Taborda NA, Rugeles MT. Role of Different Subpopulations of CD8 + T Cells during HIV Exposure and Infection. Front Immunol 2017; 8:936. [PMID: 28824656 PMCID: PMC5545716 DOI: 10.3389/fimmu.2017.00936] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 07/21/2017] [Indexed: 01/12/2023] Open
Abstract
During HIV infection, specific responses exhibited by CD8+ T cells are crucial to establish an early, effective, and sustained viral control, preventing severe immune alterations and organ dysfunction. Several CD8+ T cells subsets have been identified, exhibiting differences in terms of activation, functional profile, and ability to limit HIV replication. Some of the most important CD8+ T cells subsets associated with viral control, production of potent antiviral molecules, and strong polyfunctional responses include Th1-like cytokine pattern and Tc17 cells. In addition, the expression of specific activation markers has been also associated with a more effective response of CD8+ T cells, as evidenced in HLA-DR+ CD38− cells. CD8+ T cells in both, peripheral blood and gut mucosa, are particularly important in individuals with a resistant phenotype, including HIV-exposed seronegative individuals (HESNs), long-term non-progressors (LTNPs) and HIV-controllers. Although the role of CD8+ T cells has been extensively explored in the context of an established HIV-1 infection, the presence of HIV-specific cells with effector abilities and a defined functional profile in HESNs, remain poorly understood. Here, we reviewed studies carried out on different subpopulations of CD8+ T cells in relation with natural resistance to HIV infection and progression.
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Affiliation(s)
- Sandra Milena Gonzalez
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia
| | - Natalia Andrea Taborda
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia.,Grupo de Investigaciones Biomédicas Uniremington, Programa de Medicina, Facultad de Ciencias de la Salud, Corporación Universitaria Remington, Medellín, Colombia
| | - María Teresa Rugeles
- Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia
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Gomes STM, Gomes ÉR, Dos Santos MB, Lima SS, Queiroz MAF, Machado LFA, Cayres-Vallinoto IMV, Vallinoto ACR, de O Guimarães Ishak M, Ishak R. Immunological and virological characterization of HIV-1 viremia controllers in the North Region of Brazil. BMC Infect Dis 2017; 17:381. [PMID: 28571570 PMCID: PMC5455094 DOI: 10.1186/s12879-017-2491-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 05/24/2017] [Indexed: 12/30/2022] Open
Abstract
Background A rare phenotype of clinical non-progressors to AIDS is not well understood and the new protocol for universal treatment, may block the understanding of viral control thus it is crucial to define this controversial group. Methods A cohort of 30 persons followed a criteria for viremia control groups 1 (VC1; n = 2) and 2 (VC2; n = 7) and non-viral controllers (NC; n = 21) including number of years of diagnosis, LTCD4+, LTCD8+ counts, plasma viral load and the absence of ART; 241 uninfected control persons were matched to age and sex. Infected persons were regularly examined and submitted to two or three annual laboratory measurements. Polymorphisms and allele frequencies of CCR5Δ32 and SDF1–3’A were detected in the genomic DNA. Plasma levels of cytokines (IL-2, IL-4, IL-5, IL-9, IL-10, IL-13, IL-17 and IFN-y) were measured. Results The group investigated is originated from a miscigenetic population and demographic and social characteristics were not significantly relevant. LTCD4+ median values were higher among VC than NC, but significantly lower than uninfected controls. Evolution of LTCD4+ and LTCD8+ counts, showed a slight increase of LTCD4+ among VC, but a significant decrease in the NC. The percentage of annual change in LTCD4+ was also significantly different between the groups. LTCD4+/LTCD8+ ratio was inverted but not significant among the VC, thus the ratio may be a useful biomarker for the VC. A clear signature indicated a change from Th1 to Th2 cytokine profiles from VC to NC, respectively. Conclusions The knowledge of viral controllers characteristics in different population groups is important to define a strict universal definition for the sake of learning about the pathogenesis of HIV-1. Data on LTCD4+ seems to be stable and repetitive from published data, but the LTCD8+ response and the significance of LTCD4+/LTCD8+ ratio values are in need to further exploration as biomarkers. The change from Th1 to Th2 cytokine profile may help to design and adjust specific treatment protocols for the group.
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Affiliation(s)
- Samara Tatielle M Gomes
- Federal University of Para, Institute of Biological Sciences, Virus Laboratory, Campus Belem, Belem, Para, 66000-000, Brazil
| | - Érica R Gomes
- Federal University of Para, Institute of Biological Sciences, Virus Laboratory, Campus Belem, Belem, Para, 66000-000, Brazil
| | - Mike B Dos Santos
- Federal University of Para, Institute of Biological Sciences, Virus Laboratory, Campus Belem, Belem, Para, 66000-000, Brazil
| | - Sandra S Lima
- Federal University of Para, Institute of Biological Sciences, Virus Laboratory, Campus Belem, Belem, Para, 66000-000, Brazil
| | - Maria Alice F Queiroz
- Federal University of Para, Institute of Biological Sciences, Virus Laboratory, Campus Belem, Belem, Para, 66000-000, Brazil
| | - Luiz Fernando A Machado
- Federal University of Para, Institute of Biological Sciences, Virus Laboratory, Campus Belem, Belem, Para, 66000-000, Brazil
| | - Izaura M V Cayres-Vallinoto
- Federal University of Para, Institute of Biological Sciences, Virus Laboratory, Campus Belem, Belem, Para, 66000-000, Brazil
| | - Antonio Carlos R Vallinoto
- Federal University of Para, Institute of Biological Sciences, Virus Laboratory, Campus Belem, Belem, Para, 66000-000, Brazil
| | - Marluísa de O Guimarães Ishak
- Federal University of Para, Institute of Biological Sciences, Virus Laboratory, Campus Belem, Belem, Para, 66000-000, Brazil
| | - Ricardo Ishak
- Federal University of Para, Institute of Biological Sciences, Virus Laboratory, Campus Belem, Belem, Para, 66000-000, Brazil.
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Canouï E, Lécuroux C, Avettand-Fenoël V, Gousset M, Rouzioux C, Saez-Cirion A, Meyer L, Boufassa F, Lambotte O, Noël N. A Subset of Extreme Human Immunodeficiency Virus (HIV) Controllers Is Characterized by a Small HIV Blood Reservoir and a Weak T-Cell Activation Level. Open Forum Infect Dis 2017; 4:ofx064. [PMID: 28584850 PMCID: PMC5450900 DOI: 10.1093/ofid/ofx064] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 03/30/2017] [Indexed: 11/15/2022] Open
Abstract
Background Human immunodeficiency virus controllers (HICs) form a heterogeneous group of patients with regard to formal definitions, immunologic characteristics, and changes over time in viral load. Patients and Methods The HICs with undetectable viral load ([uHICs] ie, for whom a viral load had never been detected with routine assays; n = 52) were compared with 178 HICs with blips during the follow up (bHICs). Clinical characteristics, ultrasensitive HIV-ribonucleic acid (RNA) and HIV-deoxyribonucleic acid (DNA) loads, HIV1-Western blot profiles, and immune parameters were analyzed. Results Relative to bHICs, uHICs had significantly lower ultrasensitive plasma HIV-RNA loads (P < .0001) and HIV-DNA levels in peripheral blood mononuclear cells (P = .0004), higher CD4+ T-cell count (P = .04) at enrollment, and lower T-cell activation levels. Between diagnosis and inclusion in the cohort, the CD4+ T-cell count had not changed in uHICs but had significantly decreased in bHICs. Twenty-one percent of the uHICs lacked specific anti-HIV immunoglobulin G antibodies, and these individuals also had very low levels of HIV-DNA. Half of the uHICs had a protective human leukocyte antigen (HLA) allele (-B57/58/B27), a weak CD8+ T-cell response, and very small HIV-DNA reservoir. Conclusions We suggest that an interesting HIC phenotype combines protective HLA alleles, low level of HIV blood reservoirs, and reduced immune activation. Prospective studies aimed at evaluating the benefit of combined antiretroviral therapy in HICs might take into account the identification of uHICs and bHICs.
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Affiliation(s)
- Etienne Canouï
- Assistance Publique-Hôpitaux de Paris (AP-HP), Service de Médecine Interne et Immunologie Clinique, Groupe Hospitalier Universitaire Paris Sud, Hôpital Bicêtre, Le Kremlin-Bicêtre, France.,Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche 1184, Immunologie des Maladies Virales et Autoimmunes, Université Paris Sud, Le Kremlin-Bicêtre, France.,Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA), Direction des sciences du vivant/Institut des maladies émergentes et des thérapies innovantes (DSV/iMETI), Division of Immuno-Virology, Infectious Disease Models and Innovative Therapies (IDMIT), France.,Université Paris Sud, Le Kremlin-Bicêtre, France
| | - Camille Lécuroux
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche 1184, Immunologie des Maladies Virales et Autoimmunes, Université Paris Sud, Le Kremlin-Bicêtre, France.,Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA), Direction des sciences du vivant/Institut des maladies émergentes et des thérapies innovantes (DSV/iMETI), Division of Immuno-Virology, Infectious Disease Models and Innovative Therapies (IDMIT), France.,Université Paris Sud, Le Kremlin-Bicêtre, France
| | - Véronique Avettand-Fenoël
- Université Paris Descartes, Sorbonne Paris Cité, Faculté de Médecine, EA 7327 Paris, France AP-HP, Laboratoire de Virologie, Hôpital Necker-Enfants Malades, Paris, France
| | - Marine Gousset
- Université Paris Descartes, Sorbonne Paris Cité, Faculté de Médecine, EA 7327 Paris, France AP-HP, Laboratoire de Virologie, Hôpital Necker-Enfants Malades, Paris, France
| | - Christine Rouzioux
- Université Paris Descartes, Sorbonne Paris Cité, Faculté de Médecine, EA 7327 Paris, France AP-HP, Laboratoire de Virologie, Hôpital Necker-Enfants Malades, Paris, France
| | - Asier Saez-Cirion
- Institut Pasteur, Unité HIV Inflammation et Persistance, Paris, France
| | - Laurence Meyer
- Université Paris Sud, Le Kremlin-Bicêtre, France.,INSERM CESP U1018, Centre de Recherche en Epidémiologie et Santé des Populations, Le Kremlin-Bicêtre, France; and.,AP-HP, Service d'Epidémiologie et de Santé Publique, Hôpitaux Universitaires Paris Sud, Hôpital Bicêtre, Le Kremlin-Bicêtre, France
| | - Faroudy Boufassa
- Université Paris Sud, Le Kremlin-Bicêtre, France.,INSERM CESP U1018, Centre de Recherche en Epidémiologie et Santé des Populations, Le Kremlin-Bicêtre, France; and
| | - Olivier Lambotte
- Assistance Publique-Hôpitaux de Paris (AP-HP), Service de Médecine Interne et Immunologie Clinique, Groupe Hospitalier Universitaire Paris Sud, Hôpital Bicêtre, Le Kremlin-Bicêtre, France.,Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche 1184, Immunologie des Maladies Virales et Autoimmunes, Université Paris Sud, Le Kremlin-Bicêtre, France.,Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA), Direction des sciences du vivant/Institut des maladies émergentes et des thérapies innovantes (DSV/iMETI), Division of Immuno-Virology, Infectious Disease Models and Innovative Therapies (IDMIT), France.,Université Paris Sud, Le Kremlin-Bicêtre, France
| | - Nicolas Noël
- Assistance Publique-Hôpitaux de Paris (AP-HP), Service de Médecine Interne et Immunologie Clinique, Groupe Hospitalier Universitaire Paris Sud, Hôpital Bicêtre, Le Kremlin-Bicêtre, France.,Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche 1184, Immunologie des Maladies Virales et Autoimmunes, Université Paris Sud, Le Kremlin-Bicêtre, France.,Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA), Direction des sciences du vivant/Institut des maladies émergentes et des thérapies innovantes (DSV/iMETI), Division of Immuno-Virology, Infectious Disease Models and Innovative Therapies (IDMIT), France.,Université Paris Sud, Le Kremlin-Bicêtre, France
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Yang Y, Zhu Q, Sun W, Guo J, Ning X, Li Q, Guo Y, Li J, Kou Z, Zhou Y. A recombinant multi-epitope protein MEP1 elicits efficient long-term immune responses against HIV-1 infection. Hum Vaccin Immunother 2017; 13:1-9. [PMID: 28281860 DOI: 10.1080/21645515.2017.1281488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The effective protective HIV vaccine should elicit either protective antibodies or effective T cell response, or both. To improve the efficacy of HIV-1 vaccines, HLA polymorphism and HIV-1 diversity are 2 key factors to be considered for vaccine development. In this study, we expressed a recombinant multi-epitope protein MEP1 which has the same amino acid sequence as a DNA vaccine for Chinese population in our previous report. We found that MEP1 alone could elicit moderate levels of humoral and cellular immune responses, but these responses could not provide protection from challenge with a recombinant virus rTTV-lucgag, which expresses Gag of HIV-1 CRF_07BC. Nevertheless, when MEP1 was immunized with aluminum adjuvant, both humoral and cellular immune responses were significantly increased, and they were protective against virus infection; meanwhile, MEP1 with aluminum not only elicited early (10 d post immunization) but also a long-term (at least 44 weeks post immunization) immune responses in BALB/c mice. These results suggested that MEP1 has the potential to be developed as an effective vaccine candidate, and that suitable adjuvant is necessary for this protein to generate protective immune responses.
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Affiliation(s)
- Yi Yang
- a State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology , Beijing , China.,b Department of Microbiology , Third Military Medical University , Chongqing , China
| | - Qing Zhu
- c School of Laboratory Medicine and Life Science, Wenzhou Medical University , Wenzhou , Zhejiang , China
| | - Weilai Sun
- a State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology , Beijing , China
| | - Jingjing Guo
- a State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology , Beijing , China
| | - Xiuzhe Ning
- a State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology , Beijing , China
| | - Qiao Li
- a State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology , Beijing , China
| | - Yan Guo
- a State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology , Beijing , China
| | - Junfeng Li
- a State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology , Beijing , China
| | - Zhihua Kou
- a State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology , Beijing , China.,c School of Laboratory Medicine and Life Science, Wenzhou Medical University , Wenzhou , Zhejiang , China
| | - Yusen Zhou
- c School of Laboratory Medicine and Life Science, Wenzhou Medical University , Wenzhou , Zhejiang , China
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50
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The Antiviral Immune Response and Its Impact on the HIV-1 Reservoir. Curr Top Microbiol Immunol 2017; 417:43-67. [PMID: 29071476 DOI: 10.1007/82_2017_72] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Latently infected resting memory CD4+ T cells represent a major barrier to HIV-1 eradication. Studies have shown that it will not be possible to cure HIV-1 infection unless these cells are eliminated. Latently infected cells probably do not express viral antigens and thus may not be susceptible to the HIV-1 specific immune response, nevertheless the size and composition of the reservoir is influenced by the immune system. In this chapter, we review the different components of the HIV-1 specific immune response and discuss how the immune system can be harnessed to eradicate the virus.
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