1
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Acchioni C, Sandini S, Acchioni M, Sgarbanti M. Co-Infections and Superinfections between HIV-1 and Other Human Viruses at the Cellular Level. Pathogens 2024; 13:349. [PMID: 38787201 PMCID: PMC11124504 DOI: 10.3390/pathogens13050349] [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: 03/16/2024] [Revised: 04/20/2024] [Accepted: 04/22/2024] [Indexed: 05/25/2024] Open
Abstract
Co-infection or superinfection of the host by two or more virus species is a common event, potentially leading to viral interference, viral synergy, or neutral interaction. The simultaneous presence of two or more viruses, even distantly related, within the same cell depends upon viral tropism, i.e., the entry of viruses via receptors present on the same cell type. Subsequently, productive infection depends on the ability of these viruses to replicate efficiently in the same cellular environment. HIV-1 initially targets CCR5-expressing tissue memory CD4+ T cells, and in the absence of early cART initiation, a co-receptor switch may occur, leading to the infection of naïve and memory CXCR4-expressing CD4+ T cells. HIV-1 infection of macrophages at the G1 stage of their cell cycle also occurs in vivo, broadening the possible occurrence of co-infections between HIV-1 and other viruses at the cellular level. Moreover, HIV-1-infected DCs can transfer the virus to CD4+ T cells via trans-infection. This review focuses on the description of reported co-infections within the same cell between HIV-1 and other human pathogenic, non-pathogenic, or low-pathogenic viruses, including HIV-2, HTLV, HSV, HHV-6/-7, GBV-C, Dengue, and Ebola viruses, also discussing the possible reciprocal interactions in terms of virus replication and virus pseudotyping.
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Affiliation(s)
| | | | | | - Marco Sgarbanti
- Department of Infectious Diseases, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy; (C.A.); (S.S.); (M.A.)
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2
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Thomas S, Samuel SV, Hoch A, Syphurs C, Diray-Arce J. The Implication of Sphingolipids in Viral Infections. Int J Mol Sci 2023; 24:17303. [PMID: 38139132 PMCID: PMC10743733 DOI: 10.3390/ijms242417303] [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: 10/28/2023] [Revised: 12/03/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023] Open
Abstract
Sphingolipids are involved in cell signaling and metabolic pathways, and their metabolites play a critical role in host defense against intracellular pathogens. Here, we review the known mechanisms of sphingolipids in viral infections and discuss the potential implication of the study of sphingolipid metabolism in vaccine and therapeutic development.
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Affiliation(s)
- Sanya Thomas
- Precision Vaccines Program, Department of Pediatrics, Boston Children’s Hospital, Boston, MA 02115, USA; (S.T.); (A.H.); (C.S.)
- Harvard Medical School, Boston, MA 02115, USA;
| | - Stephen Varghese Samuel
- Harvard Medical School, Boston, MA 02115, USA;
- Department of Emergency Medicine, Christian Medical College and Hospital, Vellore 632004, India
| | - Annmarie Hoch
- Precision Vaccines Program, Department of Pediatrics, Boston Children’s Hospital, Boston, MA 02115, USA; (S.T.); (A.H.); (C.S.)
| | - Caitlin Syphurs
- Precision Vaccines Program, Department of Pediatrics, Boston Children’s Hospital, Boston, MA 02115, USA; (S.T.); (A.H.); (C.S.)
| | - Joann Diray-Arce
- Precision Vaccines Program, Department of Pediatrics, Boston Children’s Hospital, Boston, MA 02115, USA; (S.T.); (A.H.); (C.S.)
- Harvard Medical School, Boston, MA 02115, USA;
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3
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Jalloh S, Olejnik J, Berrigan J, Nisa A, Suder EL, Akiyama H, Lei M, Ramaswamy S, Tyagi S, Bushkin Y, Mühlberger E, Gummuluru S. CD169-mediated restrictive SARS-CoV-2 infection of macrophages induces pro-inflammatory responses. PLoS Pathog 2022; 18:e1010479. [PMID: 36279285 PMCID: PMC9632919 DOI: 10.1371/journal.ppat.1010479] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 11/03/2022] [Accepted: 10/06/2022] [Indexed: 11/06/2022] Open
Abstract
Exacerbated and persistent innate immune response marked by pro-inflammatory cytokine expression is thought to be a major driver of chronic COVID-19 pathology. Although macrophages are not the primary target cells of SARS-CoV-2 infection in humans, viral RNA and antigens in activated monocytes and macrophages have been detected in post-mortem samples, and dysfunctional monocytes and macrophages have been hypothesized to contribute to a protracted hyper-inflammatory state in COVID-19 patients. In this study, we demonstrate that CD169, a myeloid cell specific I-type lectin, facilitated ACE2-independent SARS-CoV-2 fusion and entry in macrophages. CD169-mediated SARS-CoV-2 entry in macrophages resulted in expression of viral genomic and subgenomic RNAs with minimal viral protein expression and no infectious viral particle release, suggesting a post-entry restriction of the SARS-CoV-2 replication cycle. Intriguingly this post-entry replication block was alleviated by exogenous ACE2 expression in macrophages. Restricted expression of viral genomic and subgenomic RNA in CD169+ macrophages elicited a pro-inflammatory cytokine expression (TNFα, IL-6 and IL-1β) in a RIG-I, MDA-5 and MAVS-dependent manner, which was suppressed by remdesivir treatment. These findings suggest that de novo expression of SARS-CoV-2 RNA in macrophages contributes to the pro-inflammatory cytokine signature and that blocking CD169-mediated ACE2 independent infection and subsequent activation of macrophages by viral RNA might alleviate COVID-19-associated hyperinflammatory response.
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Affiliation(s)
- Sallieu Jalloh
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Judith Olejnik
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, United States of America
- National Emerging Infectious Diseases Laboratories, Boston University, Boston, Massachusetts, United States of America
| | - Jacob Berrigan
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Annuurun Nisa
- Public Health Research Institute, New Jersey Medical School, Rutgers University, Newark, New Jersey, United States of America
| | - Ellen L. Suder
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, United States of America
- National Emerging Infectious Diseases Laboratories, Boston University, Boston, Massachusetts, United States of America
| | - Hisashi Akiyama
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Maohua Lei
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Sita Ramaswamy
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Sanjay Tyagi
- Public Health Research Institute, New Jersey Medical School, Rutgers University, Newark, New Jersey, United States of America
| | - Yuri Bushkin
- Public Health Research Institute, New Jersey Medical School, Rutgers University, Newark, New Jersey, United States of America
| | - Elke Mühlberger
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, United States of America
- National Emerging Infectious Diseases Laboratories, Boston University, Boston, Massachusetts, United States of America
| | - Suryaram Gummuluru
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, United States of America
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4
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Jalloh S, Olejnik J, Berrigan J, Nisa A, Suder EL, Akiyama H, Lei M, Tyagi S, Bushkin Y, Mühlberger E, Gummuluru S. CD169-mediated restrictive SARS-CoV-2 infection of macrophages induces pro-inflammatory responses. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2022:2022.03.29.486190. [PMID: 35378756 PMCID: PMC8978933 DOI: 10.1101/2022.03.29.486190] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Exacerbated and persistent innate immune response marked by pro-inflammatory cytokine expression is thought to be a major driver of chronic COVID-19 pathology. Although macrophages are not the primary target cells of SARS-CoV-2 infection in humans, viral RNA and antigens in activated monocytes and macrophages have been detected in post-mortem samples, and dysfunctional monocytes and macrophages have been hypothesized to contribute to a protracted hyper-inflammatory state in COVID-19 patients. In this study, we demonstrate that CD169, a myeloid cell specific I-type lectin, facilitated ACE2-independent SARS-CoV-2 fusion and entry in macrophages. CD169- mediated SARS-CoV-2 entry in macrophages resulted in expression of viral genomic and sub-genomic (sg) RNAs with minimal viral protein expression and no infectious viral particle release, suggesting a post-entry restriction of the SARS-CoV-2 replication cycle. Intriguingly this post-entry replication block was alleviated by exogenous ACE2 expression in macrophages. Restricted expression of viral gRNA and sgRNA in CD169 + macrophages elicited a pro-inflammatory cytokine expression (TNFα, IL-6 and IL-1β) in a RIG-I, MDA-5 and MAVS-dependent manner, which was suppressed by remdesivir pre- treatment. These findings suggest that de novo expression of SARS-CoV-2 RNA in macrophages contributes to the pro-inflammatory cytokine signature and that blocking CD169-mediated ACE2 independent infection and subsequent activation of macrophages by viral RNA might alleviate COVID-19-associated hyperinflammatory response. Author Summary Over-exuberant production of pro-inflammatory cytokine expression by macrophages has been hypothesized to contribute to severity of COVID-19 disease. Molecular mechanisms that contribute to macrophage-intrinsic immune activation during SARS- CoV-2 infection are not fully understood. Here we show that CD169, a macrophage- specific sialic-acid binding lectin, facilitates abortive SARS-CoV-2 infection of macrophages that results in innate immune sensing of viral replication intermediates and production of proinflammatory responses. We identify an ACE2-independent, CD169- mediated endosomal viral entry mechanism that results in cytoplasmic delivery of viral capsids and initiation of virus replication, but absence of infectious viral production. Restricted viral replication in CD169 + macrophages and detection of viral genomic and sub-genomic RNAs by cytoplasmic RIG-I-like receptor family members, RIG-I and MDA5, and initiation of downstream signaling via the adaptor protein MAVS, was required for innate immune activation. These studies uncover mechanisms important for initiation of innate immune sensing of SARS-CoV-2 infection in macrophages, persistent activation of which might contribute to severe COVID-19 pathophysiology.
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Affiliation(s)
- Sallieu Jalloh
- Department of Microbiology, Boston University School of Medicine, Boston, MA, USA
| | - Judith Olejnik
- Department of Microbiology, Boston University School of Medicine, Boston, MA, USA
- National Emerging Infectious Diseases Laboratories, Boston University, Boston, MA, USA
| | - Jacob Berrigan
- Department of Microbiology, Boston University School of Medicine, Boston, MA, USA
| | - Annuurun Nisa
- Public Health Research Institute, New Jersey Medical School, Rutgers University, Newark, NJ, USA
| | - Ellen L Suder
- Department of Microbiology, Boston University School of Medicine, Boston, MA, USA
- National Emerging Infectious Diseases Laboratories, Boston University, Boston, MA, USA
| | - Hisashi Akiyama
- Department of Microbiology, Boston University School of Medicine, Boston, MA, USA
| | - Maohua Lei
- Department of Microbiology, Boston University School of Medicine, Boston, MA, USA
| | - Sanjay Tyagi
- Public Health Research Institute, New Jersey Medical School, Rutgers University, Newark, NJ, USA
| | - Yuri Bushkin
- Public Health Research Institute, New Jersey Medical School, Rutgers University, Newark, NJ, USA
| | - Elke Mühlberger
- Department of Microbiology, Boston University School of Medicine, Boston, MA, USA
- National Emerging Infectious Diseases Laboratories, Boston University, Boston, MA, USA
| | - Suryaram Gummuluru
- Department of Microbiology, Boston University School of Medicine, Boston, MA, USA
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5
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Nieto-Garai JA, Contreras FX, Arboleya A, Lorizate M. Role of Protein-Lipid Interactions in Viral Entry. Adv Biol (Weinh) 2022; 6:e2101264. [PMID: 35119227 DOI: 10.1002/adbi.202101264] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 12/19/2021] [Indexed: 12/25/2022]
Abstract
The viral entry consists of several sequential events that ensure the attachment of the virus to the host cell and the introduction of its genetic material for the continuation of the replication cycle. Both cellular and viral lipids have gained a wider focus in recent years in the field of viral entry, as they are found to play key roles in different steps of the process. The specific role is summarized that lipids and lipid membrane nanostructures play in viral attachment, fusion, and immune evasion and how they can be targeted with antiviral therapies. Finally, some of the limitations of techniques commonly used for protein-lipid interactions studies are discussed, and new emerging tools are reviewed that can be applied to this field.
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Affiliation(s)
- Jon Ander Nieto-Garai
- Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country, Leioa, E-48940, Spain
| | - Francesc-Xabier Contreras
- Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country, Leioa, E-48940, Spain.,Instituto Biofisika (UPV/EHU, CSIC), University of the Basque Country, Leioa, E-48940, Spain.,Ikerbasque, Basque Foundation for Science, Bilbao, 48013, Spain
| | - Aroa Arboleya
- Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country, Leioa, E-48940, Spain.,Instituto Biofisika (UPV/EHU, CSIC), University of the Basque Country, Leioa, E-48940, Spain.,Fundación Biofísica Bizkaia/Biofisika Bizkaia Fundazioa (FBB), Barrio Sarriena s/n, Leioa, E-48940, Spain
| | - Maier Lorizate
- Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country, Leioa, E-48940, Spain.,Instituto Biofisika (UPV/EHU, CSIC), University of the Basque Country, Leioa, E-48940, Spain
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6
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Eshaghi B, Fofana J, Nodder SB, Gummuluru S, Reinhard BM. Virus-Mimicking Polymer Nanoparticles Targeting CD169 + Macrophages as Long-Acting Nanocarriers for Combination Antiretrovirals. ACS APPLIED MATERIALS & INTERFACES 2022; 14:2488-2500. [PMID: 34995059 PMCID: PMC9126061 DOI: 10.1021/acsami.1c17415] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Monosialodihexosylganglioside (GM3)-presenting lipid-coated polymer nanoparticles (NPs) that recapitulate the sequestration of human immunodeficiency virus-1 (HIV-1) particles in CD169+ virus-containing compartments (VCCs) of macrophages were developed as carriers for delivery and sustained release of a combination of two antiretrovirals (ARVs), rilpivirine (RPV) and cabotegravir (CAB). RPV and CAB were co-loaded into GM3-presenting lipid-coated polylactic acid (PLA) and poly(lactic-co-glycolic acid) (PLGA) NPs without loss in potency of the drugs. GM3-presenting PLA NPs demonstrated the most favorable release properties and achieved inhibition of HIV-1 infection of primary human macrophages for up to 35 days. Intracellular localization of GM3-presenting PLA NPs in VCCs correlated with retention of intracellular ARV concentrations and sustained inhibition of HIV-1 infection. This work elucidates the design criteria of lipid-coated polymer NPs to utilize CD169+ macrophages as cellular drug depots for eradicating the viral reservoir sites or to achieve long-acting prophylaxis against HIV-1 infection.
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Affiliation(s)
- Behnaz Eshaghi
- Departments of Chemistry and The Photonics Center, Boston University, Boston, MA 02215, United States
| | - Josiane Fofana
- Department of Microbiology, Boston University School of Medicine, Boston, MA 02118, United States
| | - Sarah B. Nodder
- Department of Microbiology, Boston University School of Medicine, Boston, MA 02118, United States
| | - Suryaram Gummuluru
- Department of Microbiology, Boston University School of Medicine, Boston, MA 02118, United States
| | - Björn M. Reinhard
- Departments of Chemistry and The Photonics Center, Boston University, Boston, MA 02215, United States
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7
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Engels R, Falk L, Albanese M, Keppler OT, Sewald X. LFA1 and ICAM1 are critical for fusion and spread of murine leukemia virus in vivo. Cell Rep 2022; 38:110279. [PMID: 35045303 DOI: 10.1016/j.celrep.2021.110279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 10/18/2021] [Accepted: 12/23/2021] [Indexed: 11/25/2022] Open
Abstract
Murine leukemia virus (MLV)-presenting cells form stable intercellular contacts with target cells during infection of lymphoid tissue, indicating a role of cell-cell contacts in retrovirus dissemination. Whether host cell adhesion proteins are required for retrovirus spread in vivo remains unknown. Here, we demonstrate that the lymphocyte-function-associated-antigen-1 (LFA1) and its ligand intercellular-adhesion-molecule-1 (ICAM1) are important for cell-contact-dependent transmission of MLV between leukocytes. Infection experiments in LFA1- and ICAM1-deficient mice demonstrate a defect in MLV spread within lymph nodes. Co-culture of primary leukocytes reveals a specific requirement for ICAM1 on donor cells and LFA1 on target cells for cell-contact-dependent spread through trans- and cis-infection. Importantly, adoptive transfer experiments combined with a newly established MLV-fusion assay confirm that the directed LFA1-ICAM1 interaction is important for retrovirus fusion and transmission in vivo. Taken together, our data provide insights on how retroviruses exploit host proteins and the biology of cell-cell interactions for dissemination.
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Affiliation(s)
- Rebecca Engels
- LMU München, Max von Pettenkofer Institute & Gene Center, Virology, National Reference Center for Retroviruses, Munich, Germany
| | - Lisa Falk
- LMU München, Max von Pettenkofer Institute & Gene Center, Virology, National Reference Center for Retroviruses, Munich, Germany
| | - Manuel Albanese
- LMU München, Max von Pettenkofer Institute & Gene Center, Virology, National Reference Center for Retroviruses, Munich, Germany
| | - Oliver T Keppler
- LMU München, Max von Pettenkofer Institute & Gene Center, Virology, National Reference Center for Retroviruses, Munich, Germany
| | - Xaver Sewald
- LMU München, Max von Pettenkofer Institute & Gene Center, Virology, National Reference Center for Retroviruses, Munich, Germany.
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8
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Perez-Zsolt D, Raïch-Regué D, Muñoz-Basagoiti J, Aguilar-Gurrieri C, Clotet B, Blanco J, Izquierdo-Useros N. HIV-1 trans-Infection Mediated by DCs: The Tip of the Iceberg of Cell-to-Cell Viral Transmission. Pathogens 2021; 11:39. [PMID: 35055987 PMCID: PMC8778849 DOI: 10.3390/pathogens11010039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/20/2021] [Accepted: 12/22/2021] [Indexed: 02/07/2023] Open
Abstract
HIV-1 cell-to-cell transmission is key for an effective viral replication that evades immunity. This highly infectious mechanism is orchestrated by different cellular targets that utilize a wide variety of processes to efficiently transfer HIV-1 particles. Dendritic cells (DCs) are the most potent antigen presenting cells that initiate antiviral immune responses, but are also the cells with highest capacity to transfer HIV-1. This mechanism, known as trans-infection, relies on the capacity of DCs to capture HIV-1 particles via lectin receptors such as the sialic acid-binding I-type lectin Siglec-1/CD169. The discovery of the molecular interaction of Siglec-1 with sialylated lipids exposed on HIV-1 membranes has enlightened how this receptor can bind to several enveloped viruses. The outcome of these interactions can either mount effective immune responses, boost the productive infection of DCs and favour innate sensing, or fuel viral transmission via trans-infection. Here we review these scenarios focusing on HIV-1 and other enveloped viruses such as Ebola virus or SARS-CoV-2.
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Affiliation(s)
- Daniel Perez-Zsolt
- IrsiCaixa AIDS Research Institute, Can Ruti Campus, 08916 Badalona, Spain; (D.P.-Z.); (D.R.-R.); (J.M.-B.); (C.A.-G.); (B.C.); (J.B.)
| | - Dàlia Raïch-Regué
- IrsiCaixa AIDS Research Institute, Can Ruti Campus, 08916 Badalona, Spain; (D.P.-Z.); (D.R.-R.); (J.M.-B.); (C.A.-G.); (B.C.); (J.B.)
| | - Jordana Muñoz-Basagoiti
- IrsiCaixa AIDS Research Institute, Can Ruti Campus, 08916 Badalona, Spain; (D.P.-Z.); (D.R.-R.); (J.M.-B.); (C.A.-G.); (B.C.); (J.B.)
| | - Carmen Aguilar-Gurrieri
- IrsiCaixa AIDS Research Institute, Can Ruti Campus, 08916 Badalona, Spain; (D.P.-Z.); (D.R.-R.); (J.M.-B.); (C.A.-G.); (B.C.); (J.B.)
| | - Bonaventura Clotet
- IrsiCaixa AIDS Research Institute, Can Ruti Campus, 08916 Badalona, Spain; (D.P.-Z.); (D.R.-R.); (J.M.-B.); (C.A.-G.); (B.C.); (J.B.)
- Infectious Diseases and Immunity Department, Faculty of Medicine, University of Vic-Central University of Catalonia (UVic-UCC), 08500 Vic, Spain
| | - Julià Blanco
- IrsiCaixa AIDS Research Institute, Can Ruti Campus, 08916 Badalona, Spain; (D.P.-Z.); (D.R.-R.); (J.M.-B.); (C.A.-G.); (B.C.); (J.B.)
- Infectious Diseases and Immunity Department, Faculty of Medicine, University of Vic-Central University of Catalonia (UVic-UCC), 08500 Vic, Spain
- Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, 08916 Badalona, Spain
| | - Nuria Izquierdo-Useros
- IrsiCaixa AIDS Research Institute, Can Ruti Campus, 08916 Badalona, Spain; (D.P.-Z.); (D.R.-R.); (J.M.-B.); (C.A.-G.); (B.C.); (J.B.)
- Germans Trias i Pujol Research Institute (IGTP), Can Ruti Campus, 08916 Badalona, Spain
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9
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Barklis E, Alfadhli A, Kyle JE, Bramer LM, Bloodsworth KJ, Barklis RL, Leier HC, Petty RM, Zelnik ID, Metz TO, Futerman AH, Tafesse FG. Ceramide synthase 2 deletion decreases the infectivity of HIV-1. J Biol Chem 2021; 296:100340. [PMID: 33515546 PMCID: PMC7949126 DOI: 10.1016/j.jbc.2021.100340] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 01/19/2021] [Accepted: 01/22/2021] [Indexed: 01/01/2023] Open
Abstract
The lipid composition of HIV-1 virions is enriched in sphingomyelin (SM), but the roles that SM or other sphingolipids (SLs) might play in the HIV-1 replication pathway have not been elucidated. In human cells, SL levels are regulated by ceramide synthase (CerS) enzymes that produce ceramides, which can be converted to SMs, hexosylceramides, and other SLs. In many cell types, CerS2, which catalyzes the synthesis of very long chain ceramides, is the major CerS. We have examined how CerS2 deficiency affects the assembly and infectivity of HIV-1. As expected, we observed that very long chain ceramide, hexosylceramide, and SM were reduced in CerS2 knockout cells. CerS2 deficiency did not affect HIV-1 assembly or the incorporation of the HIV-1 envelope (Env) protein into virus particles, but it reduced the infectivites of viruses produced in the CerS2-deficient cells. The reduced viral infection levels were dependent on HIV-1 Env, since HIV-1 particles that were pseudotyped with the vesicular stomatitis virus glycoprotein did not exhibit reductions in infectivity. Moreover, cell-cell fusion assays demonstrated that the functional defect of HIV-1 Env in CerS2-deficient cells was independent of other viral proteins. Overall, our results indicate that the altered lipid composition of CerS2-deficient cells specifically inhibit the HIV-1 Env receptor binding and/or fusion processes.
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Affiliation(s)
- Eric Barklis
- Department of Molecular Microbiology and Immunology, Oregon Health and Sciences University, Portland, Oregon, USA.
| | - Ayna Alfadhli
- Department of Molecular Microbiology and Immunology, Oregon Health and Sciences University, Portland, Oregon, USA
| | - Jennifer E Kyle
- Biological Sciences Division, Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory (PNNL), Richland, Washington, USA
| | - Lisa M Bramer
- Computing and Analytics Division, National Security Directorate PNNL, Richland, Washington, USA
| | - Kent J Bloodsworth
- Biological Sciences Division, Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory (PNNL), Richland, Washington, USA
| | - Robin Lid Barklis
- Department of Molecular Microbiology and Immunology, Oregon Health and Sciences University, Portland, Oregon, USA
| | - Hans C Leier
- Department of Molecular Microbiology and Immunology, Oregon Health and Sciences University, Portland, Oregon, USA
| | - R Max Petty
- Department of Molecular Microbiology and Immunology, Oregon Health and Sciences University, Portland, Oregon, USA
| | - Iris D Zelnik
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Thomas O Metz
- Biological Sciences Division, Earth and Biological Sciences Directorate, Pacific Northwest National Laboratory (PNNL), Richland, Washington, USA
| | - Anthony H Futerman
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Fikadu G Tafesse
- Department of Molecular Microbiology and Immunology, Oregon Health and Sciences University, Portland, Oregon, USA.
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10
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Benet S, Gálvez C, Drobniewski F, Kontsevaya I, Arias L, Monguió-Tortajada M, Erkizia I, Urrea V, Ong RY, Luquin M, Dupont M, Chojnacki J, Dalmau J, Cardona P, Neyrolles O, Lugo-Villarino G, Vérollet C, Julián E, Furrer H, Günthard HF, Crocker PR, Tapia G, Borràs FE, Fellay J, McLaren PJ, Telenti A, Cardona PJ, Clotet B, Vilaplana C, Martinez-Picado J, Izquierdo-Useros N. Dissemination of Mycobacterium tuberculosis is associated to a SIGLEC1 null variant that limits antigen exchange via trafficking extracellular vesicles. J Extracell Vesicles 2021; 10:e12046. [PMID: 33489013 PMCID: PMC7807485 DOI: 10.1002/jev2.12046] [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: 07/17/2020] [Revised: 10/28/2020] [Accepted: 12/01/2020] [Indexed: 12/14/2022] Open
Abstract
The identification of individuals with null alleles enables studying how the loss of gene function affects infection. We previously described a non-functional variant in SIGLEC1, which encodes the myeloid-cell receptor Siglec-1/CD169 implicated in HIV-1 cell-to-cell transmission. Here we report a significant association between the SIGLEC1 null variant and extrapulmonary dissemination of Mycobacterium tuberculosis (Mtb) in two clinical cohorts comprising 6,256 individuals. Local spread of bacteria within the lung is apparent in Mtb-infected Siglec-1 knockout mice which, despite having similar bacterial load, developed more extensive lesions compared to wild type mice. We find that Siglec-1 is necessary to induce antigen presentation through extracellular vesicle uptake. We postulate that lack of Siglec-1 delays the onset of protective immunity against Mtb by limiting antigen exchange via extracellular vesicles, allowing for an early local spread of mycobacteria that increases the risk for extrapulmonary dissemination.
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Affiliation(s)
- Susana Benet
- Department of Retrovirology IrsiCaixa AIDS Research Institute Badalona Spain.,Department of Retrovirology Universitat Autònoma de Barcelona Cerdanyola del Vallès Spain
| | - Cristina Gálvez
- Department of Retrovirology IrsiCaixa AIDS Research Institute Badalona Spain.,Department of Retrovirology Universitat Autònoma de Barcelona Cerdanyola del Vallès Spain
| | | | - Irina Kontsevaya
- Department of Retrovirology Imperial College London UK.,Department of Retrovirology Research Center Borstel, Borstel Germany.,Department of Retrovirology N.V. Postnikov Samara Region Clinical Tuberculosis Dispensary Samara Russia
| | - Lilibeth Arias
- Experimental Tuberculosis Unit (UTE) Germans Trias i Pujol Health Science Research Institute Can Ruti Campus Badalona Spain.,Departament de Genètica i de Microbiologia Facultat de Biociències Universitat Autònoma de Barcelona Cerdanyola del Vallès Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES) Madrid Spain
| | - Marta Monguió-Tortajada
- REMAR-IVECAT Group Germans Trias i Pujol Health Science Research Institute Can Ruti Campus Badalona Spain.,ICREC Research Program Germans Trias i Pujol Health Science Research Institute Can Ruti Campus Badalona Spain.,Department of Cell Biology Physiology and Immunology Universitat Autònoma de Barcelona Cerdanyola del Vallès Spain
| | - Itziar Erkizia
- Department of Retrovirology IrsiCaixa AIDS Research Institute Badalona Spain
| | - Victor Urrea
- Department of Retrovirology IrsiCaixa AIDS Research Institute Badalona Spain
| | - Ruo-Yan Ong
- Division of Cell Signalling and Immunology University of Dundee Dundee UK
| | - Marina Luquin
- Departament de Genètica i de Microbiologia Facultat de Biociències Universitat Autònoma de Barcelona Cerdanyola del Vallès Spain
| | - Maeva Dupont
- Institut de Pharmacologie et Biologie Structurale IPBS CNRS UPS Université de Toulouse Toulouse France.,International associated laboratory (LIA) CNRS "IM-TB/HIV" (1167) France and Buenos Aires Toulouse Argentina
| | - Jakub Chojnacki
- Department of Retrovirology IrsiCaixa AIDS Research Institute Badalona Spain
| | - Judith Dalmau
- Department of Retrovirology IrsiCaixa AIDS Research Institute Badalona Spain
| | - Paula Cardona
- Experimental Tuberculosis Unit (UTE) Germans Trias i Pujol Health Science Research Institute Can Ruti Campus Badalona Spain.,Departament de Genètica i de Microbiologia Facultat de Biociències Universitat Autònoma de Barcelona Cerdanyola del Vallès Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES) Madrid Spain
| | - Olivier Neyrolles
- Institut de Pharmacologie et Biologie Structurale IPBS CNRS UPS Université de Toulouse Toulouse France.,International associated laboratory (LIA) CNRS "IM-TB/HIV" (1167) France and Buenos Aires Toulouse Argentina
| | - Geanncarlo Lugo-Villarino
- Institut de Pharmacologie et Biologie Structurale IPBS CNRS UPS Université de Toulouse Toulouse France.,International associated laboratory (LIA) CNRS "IM-TB/HIV" (1167) France and Buenos Aires Toulouse Argentina
| | - Christel Vérollet
- Institut de Pharmacologie et Biologie Structurale IPBS CNRS UPS Université de Toulouse Toulouse France.,International associated laboratory (LIA) CNRS "IM-TB/HIV" (1167) France and Buenos Aires Toulouse Argentina
| | - Esther Julián
- Departament de Genètica i de Microbiologia Facultat de Biociències Universitat Autònoma de Barcelona Cerdanyola del Vallès Spain
| | - Hansjakob Furrer
- Department of Infectious Diseases Bern University Hospital University of Bern Bern Switzerland
| | - Huldrych F Günthard
- Division of Infectious Diseases and Hospital Epidemiology University Hospital Zurich Zurich Switzerland.,Institute of Medical Virology University of Zurich Zurich Switzerland
| | - Paul R Crocker
- Division of Cell Signalling and Immunology University of Dundee Dundee UK
| | - Gustavo Tapia
- Department of Retrovirology Universitat Autònoma de Barcelona Cerdanyola del Vallès Spain.,Pathology Department Hospital Universitario Germans Trias i Pujol Badalona Spain.,Germans Trias i Pujol Research Institute (IGTP) Can Ruti Campus Badalona Spain
| | - Francesc E Borràs
- REMAR-IVECAT Group Germans Trias i Pujol Health Science Research Institute Can Ruti Campus Badalona Spain.,Nephrology Department Germans Trias i Pujol University Hospital Badalona Spain
| | - Jacques Fellay
- School of Life Sciences École Polytechnique Fédérale de Lausanne Lausanne Switzerland.,Swiss Institute of Bioinformatics Lausanne Switzerland.,Precision Medicine Unit Lausanne University Hospital and University of Lausanne Lausanne Switzerland
| | - Paul J McLaren
- JC Wilt Infectious Diseases Research Centre Public Health Agency of Canada Winnipeg Manitoba Canada.,Department of Medical Microbiology and Infectious Diseases University of Manitoba Winnipeg Manitoba Canada
| | | | - Pere-Joan Cardona
- Experimental Tuberculosis Unit (UTE) Germans Trias i Pujol Health Science Research Institute Can Ruti Campus Badalona Spain.,Departament de Genètica i de Microbiologia Facultat de Biociències Universitat Autònoma de Barcelona Cerdanyola del Vallès Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES) Madrid Spain
| | - Bonaventura Clotet
- Department of Retrovirology IrsiCaixa AIDS Research Institute Badalona Spain.,Germans Trias i Pujol Research Institute (IGTP) Can Ruti Campus Badalona Spain.,AIDS and Related Illnesses Centre for Health and Social Care Research (CESS) Faculty of Medicine University of Vic - Central University of Catalonia (UVic - UCC) Vic Spain
| | - Cristina Vilaplana
- Experimental Tuberculosis Unit (UTE) Germans Trias i Pujol Health Science Research Institute Can Ruti Campus Badalona Spain.,Departament de Genètica i de Microbiologia Facultat de Biociències Universitat Autònoma de Barcelona Cerdanyola del Vallès Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES) Madrid Spain
| | - Javier Martinez-Picado
- Department of Retrovirology IrsiCaixa AIDS Research Institute Badalona Spain.,Germans Trias i Pujol Research Institute (IGTP) Can Ruti Campus Badalona Spain.,AIDS and Related Illnesses Centre for Health and Social Care Research (CESS) Faculty of Medicine University of Vic - Central University of Catalonia (UVic - UCC) Vic Spain.,Catalan Institution for Research and Advanced Studies (ICREA) Barcelona Spain
| | - Nuria Izquierdo-Useros
- Department of Retrovirology IrsiCaixa AIDS Research Institute Badalona Spain.,Germans Trias i Pujol Research Institute (IGTP) Can Ruti Campus Badalona Spain
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11
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Development and Validation of a Bioanalytical Method for 3′- and 6′-Sialyllactose in Minipig Liver and Kidney Using Liquid Chromatography-Tandem Mass Spectrometry and Its Application to Analysis of Tissue Distribution. Molecules 2020; 25:molecules25235721. [PMID: 33287423 PMCID: PMC7731434 DOI: 10.3390/molecules25235721] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 11/28/2020] [Accepted: 12/01/2020] [Indexed: 11/16/2022] Open
Abstract
Breast milk contains human milk oligosaccharides (HMOs), including sialyllactose (SL). SL is composed of sialic acid and lactose, and is divided into 3′-SL and 6′-SL according to the binding position. SL has immunoprotective effects against bacteria and viruses, and acts as a probiotic in the gastrointestinal tract. In this study, we developed a bioanalytical method for simultaneous analysis of 3′-SL and 6′-SL in liver and kidney tissues of Yucatan minipigs using liquid chromatography–tandem mass spectrometry (LC-MS/MS) under conditions optimized in our previous study. LC-MS/MS was performed using a hydrophilic interaction liquid chromatography (HILIC) column (50 mm × 2.1 mm, 3 μm) with a mobile phase consisting of 10 mM ammonium acetate in water (pH 4.5) and acetonitrile with gradient elution at a flow rate of 0.3 mL/min. A surrogate matrix method using water was applied for analysis of endogenous SL. The developed method was validated with regard to selectivity, linearity, precision, accuracy, the matrix effect, recovery, parallelism, dilution integrity, carryover, and stability according to the US Food and Drug Administration guidelines. We performed a tissue distribution study of minipigs, and analyzed liver and kidney tissues using the developed method to determine the tissue distribution of 3′-SL and 6′-SL. The tissue concentrations of 3′-SL and 6′-SL were readily measurable, suggesting that the method would be useful for evaluating the tissue distributions of these compounds in minipigs.
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12
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Eshaghi B, Alsharif N, An X, Akiyama H, Brown KA, Gummuluru S, Reinhard BM. Stiffness of HIV-1 Mimicking Polymer Nanoparticles Modulates Ganglioside-Mediated Cellular Uptake and Trafficking. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2000649. [PMID: 32999830 PMCID: PMC7509657 DOI: 10.1002/advs.202000649] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 05/19/2020] [Indexed: 05/12/2023]
Abstract
The monosialodihexosylganglioside, GM3, and its binding to CD169 (Siglec-1) have been indicated as key factors in the glycoprotein-independent sequestration of the human immunodeficiency virus-1 (HIV-1) in virus-containing compartments (VCCs) in myeloid cells. Here, lipid-wrapped polymer nanoparticles (NPs) are applied as a virus-mimicking model to characterize the effect of core stiffness on NP uptake and intracellular fate triggered by GM3-CD169 binding in macrophages. GM3-functionalized lipid-wrapped NPs are assembled with poly(lactic-co-glycolic) acid (PLGA) as well as with low and high molecular weight polylactic acid (PLAlMW and PLAhMW) cores. The NPs have an average diameter of 146 ± 17 nm and comparable surface properties defined by the self-assembled lipid layer. Due to differences in the glass transition temperature, the Young's modulus (E) differs substantially under physiological conditions between PLGA (E PLGA = 60 ± 32 MPa), PLAlMW (E PLA lMW = 86 ± 25 MPa), and PLAhMW (E PLA hMW = 1.41 ± 0.67 GPa) NPs. Only the stiff GM3-presenting PLAhMW NPs but not the softer PLGA or PLAlMW NPs avoid a lysosomal pathway and localize in tetraspanin (CD9)-positive compartments that resemble VCCs. These observations suggest that GM3-CD169-induced sequestration of NPs in nonlysosomal compartments is not entirely determined by ligand-receptor interactions but also depends on core stiffness.
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Affiliation(s)
- Behnaz Eshaghi
- Department of Chemistry and The Photonics CenterBoston UniversityBostonMA02215USA
| | - Nourin Alsharif
- Department of Mechanical Engineering and The Photonics CenterBoston UniversityBostonMA02215USA
| | - Xingda An
- Department of Chemistry and The Photonics CenterBoston UniversityBostonMA02215USA
| | - Hisashi Akiyama
- Department of MicrobiologyBoston University School of MedicineBostonMA02118USA
| | - Keith A. Brown
- Department of Mechanical Engineering and The Photonics CenterBoston UniversityBostonMA02215USA
| | - Suryaram Gummuluru
- Department of MicrobiologyBoston University School of MedicineBostonMA02118USA
| | - Björn M. Reinhard
- Department of Chemistry and The Photonics CenterBoston UniversityBostonMA02215USA
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13
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Dadhich R, Kapoor S. Various Facets of Pathogenic Lipids in Infectious Diseases: Exploring Virulent Lipid-Host Interactome and Their Druggability. J Membr Biol 2020; 253:399-423. [PMID: 32833058 PMCID: PMC7443855 DOI: 10.1007/s00232-020-00135-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 08/12/2020] [Indexed: 02/07/2023]
Abstract
Lipids form an integral, structural, and functional part of all life forms. They play a significant role in various cellular processes such as membrane fusion, fission, endocytosis, protein trafficking, and protein functions. Interestingly, recent studies have revealed their more impactful and critical involvement in infectious diseases, starting with the manipulation of the host membrane to facilitate pathogenic entry. Thereafter, pathogens recruit specific host lipids for the maintenance of favorable intracellular niche to augment their survival and proliferation. In this review, we showcase the lipid-mediated host pathogen interplay in context of life-threatening viral and bacterial diseases including the recent SARS-CoV-2 infection. We evaluate the emergent lipid-centric approaches adopted by these pathogens, while delineating the alterations in the composition and organization of the cell membrane within the host, as well as the pathogen. Lastly, crucial nexus points in their interaction landscape for therapeutic interventions are identified. Lipids act as critical determinants of bacterial and viral pathogenesis by altering the host cell membrane structure and functions.
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Affiliation(s)
- Ruchika Dadhich
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India.
| | - Shobhna Kapoor
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India.
- Wadhwani Research Centre for Bioengineering, Indian Institute of Technology Bombay, Mumbai, 400076, India.
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14
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Koh WH, Lopez P, Ajibola O, Parvarchian R, Mohammad U, Hnatiuk R, Kindrachuk J, Murooka TT. HIV-Captured DCs Regulate T Cell Migration and Cell-Cell Contact Dynamics to Enhance Viral Spread. iScience 2020; 23:101427. [PMID: 32798973 PMCID: PMC7452485 DOI: 10.1016/j.isci.2020.101427] [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: 04/15/2020] [Revised: 06/24/2020] [Accepted: 07/30/2020] [Indexed: 02/07/2023] Open
Abstract
Trafficking of cell-associated HIV-1 from the genital mucosa to lymphoid organs represents a critical first step toward systemic infection. Mature DCs capture and transmit HIV-1 to T cells, but insights into DC-to-T cell viral spread dynamics within a 3-dimensional environment is lacking. Using live-cell imaging, we show that mature DCs rapidly compartmentalize HIV-1 within surface-accessible invaginations near the uropod. HIV-1 capture did not interfere with DC migration toward lymph node homing chemo-attractants and their ability to enter lymphatic vessels. However, HIV-captured DCs engaged in prolonged contacts with autologous CD4+ T cells, which led to high T cell infection. Interestingly, we show that surface bound, virion-associated Env induced signal transduction in motile T cells that facilitated prolonged DC:T cell interactions, partially through high-affinity LFA-1 expression. Together, we describe a mechanism by which surface bound HIV-1 particles function as signaling receptors that regulate T cell motility, cell-cell contact dynamics, and productive infection. Mature DCs compartmentalize HIV particles near the uropodia via Siglec-1 receptor HIV-captured DCs respond to lymph node-homing chemokines and access lymphatics Prolonged contacts between HIV-captured DCs and CD4 T cells facilitate virus transfer Surface-accessible HIV particles can induce T cell signaling via Env:CD4 engagement
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Affiliation(s)
- Wan Hon Koh
- University of Manitoba, Rady Faculty of Health Sciences, Department of Immunology, Winnipeg, MB, Canada
| | - Paul Lopez
- University of Manitoba, Rady Faculty of Health Sciences, Department of Immunology, Winnipeg, MB, Canada
| | - Oluwaseun Ajibola
- University of Manitoba, Rady Faculty of Health Sciences, Department of Immunology, Winnipeg, MB, Canada
| | - Roshan Parvarchian
- University of Manitoba, Rady Faculty of Health Sciences, Department of Immunology, Winnipeg, MB, Canada
| | - Umar Mohammad
- University of Manitoba, Rady Faculty of Health Sciences, Department of Immunology, Winnipeg, MB, Canada
| | - Ryan Hnatiuk
- University of Manitoba, Rady Faculty of Health Sciences, Department of Immunology, Winnipeg, MB, Canada
| | - Jason Kindrachuk
- University of Manitoba, Rady Faculty of Health Sciences, Department of Medical Microbiology and Infectious Diseases, Winnipeg, Canada
| | - Thomas T Murooka
- University of Manitoba, Rady Faculty of Health Sciences, Department of Immunology, Winnipeg, MB, Canada; University of Manitoba, Rady Faculty of Health Sciences, Department of Medical Microbiology and Infectious Diseases, Winnipeg, Canada.
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15
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Dupont M, Souriant S, Balboa L, Vu Manh TP, Pingris K, Rousset S, Cougoule C, Rombouts Y, Poincloux R, Ben Neji M, Allers C, Kaushal D, Kuroda MJ, Benet S, Martinez-Picado J, Izquierdo-Useros N, Sasiain MDC, Maridonneau-Parini I, Neyrolles O, Vérollet C, Lugo-Villarino G. Tuberculosis-associated IFN-I induces Siglec-1 on tunneling nanotubes and favors HIV-1 spread in macrophages. eLife 2020; 9:52535. [PMID: 32223897 PMCID: PMC7173963 DOI: 10.7554/elife.52535] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 03/30/2020] [Indexed: 12/20/2022] Open
Abstract
While tuberculosis (TB) is a risk factor in HIV-1-infected individuals, the mechanisms by which Mycobacterium tuberculosis (Mtb) worsens HIV-1 pathogenesis remain scarce. We showed that HIV-1 infection is exacerbated in macrophages exposed to TB-associated microenvironments due to tunneling nanotube (TNT) formation. To identify molecular factors associated with TNT function, we performed a transcriptomic analysis in these macrophages, and revealed the up-regulation of Siglec-1 receptor. Siglec-1 expression depends on Mtb-induced production of type I interferon (IFN-I). In co-infected non-human primates, Siglec-1 is highly expressed by alveolar macrophages, whose abundance correlates with pathology and activation of IFN-I/STAT1 pathway. Siglec-1 localizes mainly on microtubule-containing TNT that are long and carry HIV-1 cargo. Siglec-1 depletion decreases TNT length, diminishes HIV-1 capture and cell-to-cell transfer, and abrogates the exacerbation of HIV-1 infection induced by Mtb. Altogether, we uncover a deleterious role for Siglec-1 in TB-HIV-1 co-infection and open new avenues to understand TNT biology.
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Affiliation(s)
- Maeva Dupont
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France.,International associated laboratory (LIA) CNRS 'IM-TB/HIV', Toulouse, France
| | - Shanti Souriant
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France.,International associated laboratory (LIA) CNRS 'IM-TB/HIV', Toulouse, France
| | - Luciana Balboa
- International associated laboratory (LIA) CNRS 'IM-TB/HIV', Toulouse, France.,Institute of Experimental Medicine-CONICET, National Academy of Medicine, Buenos Aires, Argentina
| | | | - Karine Pingris
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Stella Rousset
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Céline Cougoule
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France.,International associated laboratory (LIA) CNRS 'IM-TB/HIV', Toulouse, France
| | - Yoann Rombouts
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Renaud Poincloux
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Myriam Ben Neji
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France
| | - Carolina Allers
- Tulane National Primate Research Center, Department of Microbiology and Immunology, School of Medicine, Tulane University, Covington, United States
| | - Deepak Kaushal
- Tulane National Primate Research Center, Department of Microbiology and Immunology, School of Medicine, Tulane University, Covington, United States
| | - Marcelo J Kuroda
- Tulane National Primate Research Center, Department of Microbiology and Immunology, School of Medicine, Tulane University, Covington, United States
| | - Susana Benet
- IrsiCaixa AIDS Research Institute, Department of Retrovirology, Badalona, Spain.,Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Javier Martinez-Picado
- IrsiCaixa AIDS Research Institute, Department of Retrovirology, Badalona, Spain.,University of Vic-Central University of Catalonia (UVic-UCC), Vic, Spain.,Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain
| | - Nuria Izquierdo-Useros
- IrsiCaixa AIDS Research Institute, Department of Retrovirology, Badalona, Spain.,Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Spain
| | - Maria Del Carmen Sasiain
- International associated laboratory (LIA) CNRS 'IM-TB/HIV', Toulouse, France.,Institute of Experimental Medicine-CONICET, National Academy of Medicine, Buenos Aires, Argentina
| | - Isabelle Maridonneau-Parini
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France.,International associated laboratory (LIA) CNRS 'IM-TB/HIV', Toulouse, France
| | - Olivier Neyrolles
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France.,International associated laboratory (LIA) CNRS 'IM-TB/HIV', Toulouse, France
| | - Christel Vérollet
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France.,International associated laboratory (LIA) CNRS 'IM-TB/HIV', Toulouse, France
| | - Geanncarlo Lugo-Villarino
- Institut de Pharmacologie et Biologie Structurale, IPBS, Université de Toulouse, CNRS, UPS, Toulouse, France.,International associated laboratory (LIA) CNRS 'IM-TB/HIV', Toulouse, France
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16
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Tao J, Chen K, Su X, Ren L, Zhang J, Bao L, Dong H, Lu G, Teng Z, Wang L. Virus-mimicking mesoporous organosilica nanocapsules with soft framework and rough surface for enhanced cellular uptake and tumor penetration. Biomater Sci 2020; 8:2227-2233. [DOI: 10.1039/c9bm01559k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Virus-mimicking mesoporous organosilica nanocapsules possess enhanced cellular uptake and tumor penetration.
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17
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Perez-Zsolt D, Martinez-Picado J, Izquierdo-Useros N. When Dendritic Cells Go Viral: The Role of Siglec-1 in Host Defense and Dissemination of Enveloped Viruses. Viruses 2019; 12:v12010008. [PMID: 31861617 PMCID: PMC7019426 DOI: 10.3390/v12010008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 12/04/2019] [Accepted: 12/05/2019] [Indexed: 12/15/2022] Open
Abstract
Dendritic cells (DCs) are among the first cells that recognize incoming viruses at the mucosal portals of entry. Initial interaction between DCs and viruses facilitates cell activation and migration to secondary lymphoid tissues, where these antigen presenting cells (APCs) prime specific adaptive immune responses. Some viruses, however, have evolved strategies to subvert the migratory capacity of DCs as a way to disseminate infection systemically. Here we focus on the role of Siglec-1, a sialic acid-binding type I lectin receptor potently upregulated by type I interferons on DCs, that acts as a double edge sword, containing viral replication through the induction of antiviral immunity, but also favoring viral spread within tissues. Such is the case for distant enveloped viruses like human immunodeficiency virus (HIV)-1 or Ebola virus (EBOV), which incorporate sialic acid-containing gangliosides on their viral membrane and are effectively recognized by Siglec-1. Here we review how Siglec-1 is highly induced on the surface of human DCs upon viral infection, the way this impacts different antigen presentation pathways, and how enveloped viruses have evolved to exploit these APC functions as a potent dissemination strategy in different anatomical compartments.
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Affiliation(s)
- Daniel Perez-Zsolt
- IrsiCaixa AIDS Research Institute, Ctra. de Canyet s/n, 08916 Badalona, Spain;
- Department of Biochemistry and Molecular Biology, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- Institut d’Investigació en Ciències de la Salut Germans Trias i Pujol, 08916 Badalona, Spain
| | - Javier Martinez-Picado
- IrsiCaixa AIDS Research Institute, Ctra. de Canyet s/n, 08916 Badalona, Spain;
- Institut d’Investigació en Ciències de la Salut Germans Trias i Pujol, 08916 Badalona, Spain
- Chair in Infectious Diseases and Immunity, Faculty of Medicine, University of Vic-Central University of Catalonia (UVic-UCC), 08500 Vic, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), 08010 Barcelona, Spain
- Correspondence: (J.M.-P.); (N.I.-U.)
| | - Nuria Izquierdo-Useros
- IrsiCaixa AIDS Research Institute, Ctra. de Canyet s/n, 08916 Badalona, Spain;
- Institut d’Investigació en Ciències de la Salut Germans Trias i Pujol, 08916 Badalona, Spain
- Correspondence: (J.M.-P.); (N.I.-U.)
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18
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Yager EJ, Konan KV. Sphingolipids as Potential Therapeutic Targets against Enveloped Human RNA Viruses. Viruses 2019; 11:v11100912. [PMID: 31581580 PMCID: PMC6832137 DOI: 10.3390/v11100912] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 09/27/2019] [Accepted: 09/28/2019] [Indexed: 12/28/2022] Open
Abstract
Several notable human diseases are caused by enveloped RNA viruses: influenza, AIDS, hepatitis C, dengue hemorrhagic fever, microcephaly, and Guillain-Barré Syndrome. Being enveloped, the life cycle of this group of viruses is critically dependent on host lipid biosynthesis. Viral binding and entry involve interactions between viral envelope glycoproteins and cellular receptors localized to lipid-rich regions of the plasma membrane. Subsequent infection by these viruses leads to reorganization of cellular membranes and lipid metabolism to support the production of new viral particles. Recent work has focused on defining the involvement of specific lipid classes in the entry, genome replication assembly, and viral particle formation of these viruses in hopes of identifying potential therapeutic targets for the treatment or prevention of disease. In this review, we will highlight the role of host sphingolipids in the lifecycle of several medically important enveloped RNA viruses.
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Affiliation(s)
- Eric J Yager
- Department of Basic and Clinical Sciences, Albany College of Pharmacy and Health Sciences, Albany, NY 12208, USA.
| | - Kouacou V Konan
- Department of Immunology and Microbial Disease, Albany Medical College, Albany, NY 12208-3479, USA.
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19
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Perez-Zsolt D, Erkizia I, Pino M, García-Gallo M, Martin MT, Benet S, Chojnacki J, Fernández-Figueras MT, Guerrero D, Urrea V, Muñiz-Trabudua X, Kremer L, Martinez-Picado J, Izquierdo-Useros N. Anti-Siglec-1 antibodies block Ebola viral uptake and decrease cytoplasmic viral entry. Nat Microbiol 2019; 4:1558-1570. [PMID: 31160823 DOI: 10.1038/s41564-019-0453-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 04/11/2019] [Indexed: 12/14/2022]
Abstract
Several Ebola viruses cause outbreaks of lethal haemorrhagic fever in humans, but developing therapies tackle only Zaire Ebola virus. Dendritic cells (DCs) are targets of this infection in vivo. Here, we found that Ebola virus entry into activated DCs requires the sialic acid-binding Ig-like lectin 1 (Siglec-1/CD169), which recognizes sialylated gangliosides anchored to viral membranes. Blockage of the Siglec-1 receptor by anti-Siglec-1 monoclonal antibodies halted Ebola viral uptake and cytoplasmic entry, offering cross-protection against other ganglioside-containing viruses such as human immunodeficiency virus type 1.
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Affiliation(s)
- Daniel Perez-Zsolt
- IrsiCaixa AIDS Research Institute, Badalona, Spain.,Universitat Autònoma de Barcelona, Barcelona, Spain
| | | | - Maria Pino
- IrsiCaixa AIDS Research Institute, Badalona, Spain
| | - Mónica García-Gallo
- Protein Tools Unit and Department of Immunology and Oncology, Spanish National Center for Biotechnology, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Maria Teresa Martin
- Protein Tools Unit and Department of Immunology and Oncology, Spanish National Center for Biotechnology, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Susana Benet
- IrsiCaixa AIDS Research Institute, Badalona, Spain.,Universitat Autònoma de Barcelona, Barcelona, Spain
| | | | - María Teresa Fernández-Figueras
- Department of Pathology, Hospital Universitari General de Catalunya-Grupo Quirón Salud, Barcelona, Spain.,Universitat Internacional de Catalunya, Barcelona, Spain.,Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Spain
| | - Dolores Guerrero
- Otorhinolaryngology Department, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - Victor Urrea
- IrsiCaixa AIDS Research Institute, Badalona, Spain
| | - Xabier Muñiz-Trabudua
- IrsiCaixa AIDS Research Institute, Badalona, Spain.,Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Leonor Kremer
- Protein Tools Unit and Department of Immunology and Oncology, Spanish National Center for Biotechnology, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Javier Martinez-Picado
- IrsiCaixa AIDS Research Institute, Badalona, Spain. .,University of Vic-Central University of Catalonia, Vic, Spain. .,Catalan Institution for Research and Advanced Studies, Barcelona, Spain.
| | - Nuria Izquierdo-Useros
- IrsiCaixa AIDS Research Institute, Badalona, Spain. .,Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Spain.
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20
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Mesquita I, Estaquier J. Viral Manipulation of the Host Metabolic Network. EXPERIENTIA. SUPPLEMENTUM 2019; 109:377-401. [PMID: 30535606 DOI: 10.1007/978-3-319-74932-7_10] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Viruses are intracellular parasites that rely on host machinery to replicate and achieve a successful infection. Viruses have evolved to retain a broad range of strategies to manipulate host cell metabolism and metabolic resources, channeling them toward the production of virion components leading to viral production. Although several viruses share similar strategies for manipulating host cell metabolism, these processes depend on several factors, namely, the viral life cycle and the metabolic and energetic status of the infected cell. Based on this knowledge, the development of new therapeutic approaches that circumvent viral spread through the target of altered metabolic pathways is an opportunity to tackle the infection. However, finding effective broad-spectrum strategies that aim at restoring to homeostasis the metabolic alterations induced upon virus infection is still a Holy Grail quest for antiviral therapies. Here, we review the strategies by which viruses manipulate host metabolism for their own benefit, with a particular emphasis on carbohydrate, glutamine, and lipid metabolism.
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Affiliation(s)
- Inês Mesquita
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Jérôme Estaquier
- Centre de Recherche du CHU de Québec, Université Laval, Québec, Canada. .,CNRS FR 3636, Université Paris Descartes, Paris, France.
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21
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Perez-Zsolt D, Cantero-Pérez J, Erkizia I, Benet S, Pino M, Serra-Peinado C, Hernández-Gallego A, Castellví J, Tapia G, Arnau-Saz V, Garrido J, Tarrats A, Buzón MJ, Martinez-Picado J, Izquierdo-Useros N, Genescà M. Dendritic Cells From the Cervical Mucosa Capture and Transfer HIV-1 via Siglec-1. Front Immunol 2019; 10:825. [PMID: 31114569 PMCID: PMC6503733 DOI: 10.3389/fimmu.2019.00825] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 03/28/2019] [Indexed: 01/06/2023] Open
Abstract
Antigen presenting cells from the cervical mucosa are thought to amplify incoming HIV-1 and spread infection systemically without being productively infected. Yet, the molecular mechanism at the cervical mucosa underlying this viral transmission pathway remains unknown. Here we identified a subset of HLA-DR+ CD14+ CD11c+ cervical DCs at the lamina propria of the ectocervix and the endocervix that expressed the type-I interferon inducible lectin Siglec-1 (CD169), which promoted viral uptake. In the cervical biopsy of a viremic HIV-1+ patient, Siglec-1+ cells harbored HIV-1-containing compartments, demonstrating that in vivo, these cells trap viruses. Ex vivo, a type-I interferon antiviral environment enhanced viral capture and trans-infection via Siglec-1. Nonetheless, HIV-1 transfer via cervical DCs was effectively prevented with antibodies against Siglec-1. Our findings contribute to decipher how cervical DCs may boost HIV-1 replication and promote systemic viral spread from the cervical mucosa, and highlight the importance of including inhibitors against Siglec-1 in microbicidal strategies.
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Affiliation(s)
- Daniel Perez-Zsolt
- IrsiCaixa AIDS Research Institute, Badalona, Spain.,Department of Biochemistry and Molecular Biology, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Jon Cantero-Pérez
- Department of Infectious Diseases, Vall d'Hebron Institut de Recerca, Barcelona, Spain.,Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Spain
| | | | - Susana Benet
- IrsiCaixa AIDS Research Institute, Badalona, Spain.,Department of Biochemistry and Molecular Biology, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Maria Pino
- IrsiCaixa AIDS Research Institute, Badalona, Spain
| | - Carla Serra-Peinado
- Department of Infectious Diseases, Vall d'Hebron Institut de Recerca, Barcelona, Spain
| | - Alba Hernández-Gallego
- Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Spain.,Pathology Department, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - Josep Castellví
- Pathology Department, Hospital Universitari Vall d'Hebron, Barcelona, Spain.,Department of Morphological Sciences, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Gustavo Tapia
- Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Spain.,Pathology Department, Hospital Universitari Germans Trias i Pujol, Badalona, Spain.,Department of Morphological Sciences, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Vicent Arnau-Saz
- Department of Biochemistry and Molecular Biology, Universitat Autònoma de Barcelona, Barcelona, Spain.,Department of Infectious Diseases, Vall d'Hebron Institut de Recerca, Barcelona, Spain
| | | | - Antoni Tarrats
- Department of Obstetrics and Gynecology, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - Maria J Buzón
- Department of Infectious Diseases, Vall d'Hebron Institut de Recerca, Barcelona, Spain
| | - Javier Martinez-Picado
- IrsiCaixa AIDS Research Institute, Badalona, Spain.,University of Vic-Central University of Catalonia (UVic-UCC), Vic, Spain.,Institució Catalana de Recerca i Estudis Avançats, Barcelona, Spain
| | - Nuria Izquierdo-Useros
- IrsiCaixa AIDS Research Institute, Badalona, Spain.,Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Spain
| | - Meritxell Genescà
- Department of Infectious Diseases, Vall d'Hebron Institut de Recerca, Barcelona, Spain.,Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Spain
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22
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Kang LJ, Kwon ES, Lee KM, Cho C, Lee JI, Ryu YB, Youm TH, Jeon J, Cho MR, Jeong SY, Lee SR, Kim W, Yang S. 3'-Sialyllactose as an inhibitor of p65 phosphorylation ameliorates the progression of experimental rheumatoid arthritis. Br J Pharmacol 2018; 175:4295-4309. [PMID: 30152858 PMCID: PMC6240131 DOI: 10.1111/bph.14486] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 07/25/2018] [Accepted: 08/10/2018] [Indexed: 12/25/2022] Open
Abstract
Background and Purpose 3′‐Sialyllactose (3′‐SL) is a safe compound that is present in high levels in human milk. Although it has anti‐inflammatory properties and supports immune homeostasis, its effect on collagen‐induced arthritis (CIA) is unknown. In this study, we investigated the prophylactic and therapeutic effect of 3′‐SL on the progression of rheumatoid arthritis (RA) in in vitro and in vivo models. Experimental Approach The anti‐arthritic effect of 3′‐SL was analysed with fibroblast‐like synoviocytes in vitro and an in vivo mouse model of CIA. RT‐PCR, Western blotting and ELISA were performed to evaluate its effects in vitro. Histological analysis of ankle and knee joints of mice with CIA was performed using immunohistochemistry, as well as safranin‐O and haematoxylin staining. Key Results 3′‐SL markedly alleviated the severity of CIA in the mice by reducing paw swelling, clinical scores, incidence rate, serum levels of inflammatory cytokines and autoantibody production. Moreover, 3′‐SL reduced synovitis and pannus formation and suppressed cartilage destruction by blocking secretion of chemokines, pro‐inflammatory cytokines, https://en.wikipedia.org/wiki/Matrix_metalloproteinases and osteoclastogenesis via NF‐κB signalling. Notably, phosphorylation of p65, which is a key protein in the NF‐κB signalling pathway, was totally blocked by 3′‐SL in the RA models. Conclusions and Implications 3′‐SL ameliorated pathogenesis of CIA by suppressing catabolic factor expression, proliferation of inflammatory immune cells and osteoclastogenesis. These effects were mediated via blockade of the NF‐κB signalling pathway. Therefore, 3′‐SL exerted prophylactic and therapeutic effects and could be a novel therapeutic agent for the treatment of RA.
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Affiliation(s)
- Li-Jung Kang
- Department of Pharmacology, Ajou University School of Medicine, Suwon, Korea.,Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, Korea.,CIRNO, Sungkyunkwan University, Suwon, Korea
| | - Eun-Soo Kwon
- Aging Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea
| | | | - Chanmi Cho
- Department of Pharmacology, Ajou University School of Medicine, Suwon, Korea.,Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, Korea.,CIRNO, Sungkyunkwan University, Suwon, Korea
| | - Jae-In Lee
- Natural Product Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Korea
| | - Young Bae Ryu
- Natural Product Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Korea
| | - Tae Hyun Youm
- Aging Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea.,Laboratory of Physiology, College of Pharmacy, Chungnam National University, Daejeon, Korea
| | - Jimin Jeon
- Department of Pharmacology, Ajou University School of Medicine, Suwon, Korea.,Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, Korea.,CIRNO, Sungkyunkwan University, Suwon, Korea
| | - Mi Ra Cho
- Rheumatism Research Center, The Catholic University of Korea, College of Medicine, Seoul, Korea
| | - Seon-Yong Jeong
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, Korea.,Department of Medical Genetics, Ajou University School of Medicine, Suwon, Korea
| | - Sang-Rae Lee
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju, Korea.,Department of Functional Genomics, University of Science and Technology, Daejeon, Korea
| | - Wook Kim
- Department of Molecular Science and Technology, Ajou University, Suwon, Korea
| | - Siyoung Yang
- Department of Pharmacology, Ajou University School of Medicine, Suwon, Korea.,Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, Korea.,CIRNO, Sungkyunkwan University, Suwon, Korea
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23
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Bayliss RJ, Piguet V. Masters of manipulation: Viral modulation of the immunological synapse. Cell Microbiol 2018; 20:e12944. [PMID: 30123959 PMCID: PMC6492149 DOI: 10.1111/cmi.12944] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 08/01/2018] [Accepted: 08/14/2018] [Indexed: 02/06/2023]
Abstract
In order to thrive, viruses have evolved to manipulate host cell machinery for their own benefit. One major obstacle faced by pathogens is the immunological synapse. To enable efficient replication and latency in immune cells, viruses have developed a range of strategies to manipulate cellular processes involved in immunological synapse formation to evade immune detection and control T-cell activation. In vitro, viruses such as human immunodeficiency virus 1 and human T-lymphotropic virus type 1 utilise structures known as virological synapses to aid transmission of viral particles from cell to cell in a process termed trans-infection. The formation of the virological synapse provides a gateway for virus to be transferred between cells avoiding the extracellular space, preventing antibody neutralisation or recognition by complement. This review looks at how viruses are able to subvert intracellular signalling to modulate immune function to their advantage and explores the role synapse formation has in viral persistence and cell-to-cell transmission.
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Affiliation(s)
- Rebecca J. Bayliss
- Division of Infection and Immunity, School of MedicineCardiff UniversityCardiffUK
| | - Vincent Piguet
- Division of Infection and Immunity, School of MedicineCardiff UniversityCardiffUK
- Division of Dermatology, Department of MedicineUniversity of TorontoTorontoOntarioCanada
- Division of DermatologyWomen's College HospitalTorontoOntarioCanada
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24
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Xu F, Bandara A, Akiyama H, Eshaghi B, Stelter D, Keyes T, Straub JE, Gummuluru S, Reinhard BM. Membrane-wrapped nanoparticles probe divergent roles of GM3 and phosphatidylserine in lipid-mediated viral entry pathways. Proc Natl Acad Sci U S A 2018; 115:E9041-E9050. [PMID: 30190430 PMCID: PMC6166840 DOI: 10.1073/pnas.1804292115] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Gold nanoparticles (NPs) wrapped in a membrane can be utilized as artificial virus nanoparticles (AVNs) that combine the large nonblinking or bleaching optical cross-section of the NP core with the biological surface properties and functionalities provided by a self-assembled lipid membrane. We used these hybrid nanomaterials to test the roles of monosialodihexosylganglioside (GM3) and phosphatidylserine (PS) for a lipid-mediated targeting of virus-containing compartments (VCCs) in macrophages. GM3-presenting AVNs bind to CD169 (Siglec-1)-expressing macrophages, but inclusion of PS in the GM3-containing AVN membrane decreases binding. Molecular dynamics simulations of the AVN membrane and experimental binding studies of CD169 to GM3-presenting AVNs reveal Na+-mediated interactions between GM3 and PS as a potential cause of the antagonistic action on binding by the two negatively charged lipids. GM3-functionalized AVNs with no or low PS content localize to tetherin+, CD9+ VCC in a membrane composition-depending fashion, but increasing amounts of PS in the AVN membrane redirect the NP to lysosomal compartments. Interestingly, this compartmentalization is highly GM3 specific. Even AVNs presenting the related monosialotetrahexosylganglioside (GM1) fail to achieve an accumulation in VCC. AVN localization to VCC was observed for AVN with gold NP core but not for liposomes, suggesting that NP sequestration into VCC has additional requirements beyond ligand (GM3)-receptor (CD169) recognition that are related to the physical properties of the NP core. Our results confirm AVN as a scalable platform for elucidating the mechanisms of lipid-mediated viral entry pathways and for selective intracellular targeting.
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Affiliation(s)
- Fangda Xu
- Department of Chemistry, Boston University, Boston, MA 02215
- The Photonics Center, Boston University, Boston, MA 02215
| | - Asanga Bandara
- Department of Chemistry, Boston University, Boston, MA 02215
| | - Hisashi Akiyama
- Department of Microbiology, School of Medicine, Boston University, Boston, MA 02215
| | - Behnaz Eshaghi
- Department of Chemistry, Boston University, Boston, MA 02215
- The Photonics Center, Boston University, Boston, MA 02215
| | - David Stelter
- Department of Chemistry, Boston University, Boston, MA 02215
| | - Tom Keyes
- Department of Chemistry, Boston University, Boston, MA 02215
| | - John E Straub
- Department of Chemistry, Boston University, Boston, MA 02215
| | - Suryaram Gummuluru
- Department of Microbiology, School of Medicine, Boston University, Boston, MA 02215
| | - Björn M Reinhard
- Department of Chemistry, Boston University, Boston, MA 02215;
- The Photonics Center, Boston University, Boston, MA 02215
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25
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Nieto-Garai JA, Glass B, Bunn C, Giese M, Jennings G, Brankatschk B, Agarwal S, Börner K, Contreras FX, Knölker HJ, Zankl C, Simons K, Schroeder C, Lorizate M, Kräusslich HG. Lipidomimetic Compounds Act as HIV-1 Entry Inhibitors by Altering Viral Membrane Structure. Front Immunol 2018; 9:1983. [PMID: 30233582 PMCID: PMC6131562 DOI: 10.3389/fimmu.2018.01983] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 08/13/2018] [Indexed: 12/16/2022] Open
Abstract
The envelope of Human Immunodeficiency Virus type 1 (HIV-1) consists of a liquid-ordered membrane enriched in raft lipids and containing the viral glycoproteins. Previous studies demonstrated that changes in viral membrane lipid composition affecting membrane structure or curvature can impair infectivity. Here, we describe novel antiviral compounds that were identified by screening compound libraries based on raft lipid-like scaffolds. Three distinct molecular structures were chosen for mode-of-action studies, a sterol derivative (J391B), a sphingosine derivative (J582C) and a long aliphatic chain derivative (IBS70). All three target the viral membrane and inhibit virus infectivity at the stage of fusion without perturbing virus stability or affecting virion-associated envelope glycoproteins. Their effect did not depend on the expressed envelope glycoproteins or a specific entry route, being equally strong in HIV pseudotypes carrying VSV-G or MLV-Env glycoproteins. Labeling with laurdan, a reporter of membrane order, revealed different membrane structure alterations upon compound treatment of HIV-1, which correlated with loss of infectivity. J582C and IBS70 decreased membrane order in distinctive ways, whereas J391B increased membrane order. The compounds' effects on membrane order were reproduced in liposomes generated from extracted HIV lipids and thus independent both of virion proteins and of membrane leaflet asymmetry. Remarkably, increase of membrane order by J391B required phosphatidylserine, a lipid enriched in the HIV envelope. Counterintuitively, mixtures of two compounds with opposite effects on membrane order, J582C and J391B, did not neutralize each other but synergistically inhibited HIV infection. Thus, altering membrane order, which can occur by different mechanisms, constitutes a novel antiviral mode of action that may be of general relevance for enveloped viruses and difficult to overcome by resistance development.
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Affiliation(s)
- Jon Ander Nieto-Garai
- Departamento de Bioquímica y Biología Molecular, Instituto Biofisika (CSIC, UPV/EHU), Universidad del País Vasco, Bilbao, Spain
| | - Bärbel Glass
- Department of Infectious Diseases, Virology, Universitätsklinikum Heidelberg, Heidelberg, Germany
| | | | | | | | - Beate Brankatschk
- JADO Technologies, Dresden, Germany.,Membrane Biochemistry Group, Paul-Langerhans-Institute Dresden, Helmholtz Zentrum München at the University Hospital and Faculty of Medicine Carl Gustav Carus, Dresden, Germany
| | - Sameer Agarwal
- JADO Technologies, Dresden, Germany.,Department of Chemistry, Technische Universität Dresden, Dresden, Germany
| | - Kathleen Börner
- Department of Infectious Diseases, Virology, Universitätsklinikum Heidelberg, Heidelberg, Germany
| | - F Xabier Contreras
- Departamento de Bioquímica y Biología Molecular, Instituto Biofisika (CSIC, UPV/EHU), Universidad del País Vasco, Bilbao, Spain.,Ikerbasque, Basque Foundation for Science, Bilbao, Spain
| | - Hans-Joachim Knölker
- JADO Technologies, Dresden, Germany.,Department of Chemistry, Technische Universität Dresden, Dresden, Germany
| | - Claudia Zankl
- JADO Technologies, Dresden, Germany.,Department of Chemistry, Technische Universität Dresden, Dresden, Germany
| | - Kai Simons
- Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany
| | - Cornelia Schroeder
- JADO Technologies, Dresden, Germany.,Max Planck Institute of Molecular Cell Biology and Genetics, Dresden, Germany.,Department of Anatomy, Medical Faculty Carl-Gustav-Carus, Technische Universität Dresden, Dresden, Germany
| | - Maier Lorizate
- Departamento de Bioquímica y Biología Molecular, Instituto Biofisika (CSIC, UPV/EHU), Universidad del País Vasco, Bilbao, Spain
| | - Hans-Georg Kräusslich
- Department of Infectious Diseases, Virology, Universitätsklinikum Heidelberg, Heidelberg, Germany
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26
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Abstract
While HIV-1 infection of target cells with cell-free viral particles has been largely documented, intercellular transmission through direct cell-to-cell contact may be a predominant mode of propagation in host. To spread, HIV-1 infects cells of the immune system and takes advantage of their specific particularities and functions. Subversion of intercellular communication allows to improve HIV-1 replication through a multiplicity of intercellular structures and membrane protrusions, like tunneling nanotubes, filopodia, or lamellipodia-like structures involved in the formation of the virological synapse. Other features of immune cells, like the immunological synapse or the phagocytosis of infected cells are hijacked by HIV-1 and used as gateways to infect target cells. Finally, HIV-1 reuses its fusogenic capacity to provoke fusion between infected donor cells and target cells, and to form infected syncytia with high capacity of viral production and improved capacities of motility or survival. All these modes of cell-to-cell transfer are now considered as viral mechanisms to escape immune system and antiretroviral therapies, and could be involved in the establishment of persistent virus reservoirs in different host tissues.
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Affiliation(s)
- Lucie Bracq
- Inserm U1016, Institut Cochin, Paris, France.,CNRS, UMR8104, Paris, France.,Université Paris-Descartes, Sorbonne Paris-Cité, Paris, France.,International Associated Laboratory (LIA VirHost), Institut Pasteur Shanghai-Chinese Academy of Sciences, Shanghai, China.,International Associated Laboratory (LIA VirHost), CNRS, Université Paris-Descartes, Institut Pasteur, Paris, France
| | - Maorong Xie
- Inserm U1016, Institut Cochin, Paris, France.,CNRS, UMR8104, Paris, France.,Université Paris-Descartes, Sorbonne Paris-Cité, Paris, France.,International Associated Laboratory (LIA VirHost), CNRS, Université Paris-Descartes, Institut Pasteur, Paris, France
| | - Serge Benichou
- Inserm U1016, Institut Cochin, Paris, France.,CNRS, UMR8104, Paris, France.,Université Paris-Descartes, Sorbonne Paris-Cité, Paris, France.,International Associated Laboratory (LIA VirHost), Institut Pasteur Shanghai-Chinese Academy of Sciences, Shanghai, China.,International Associated Laboratory (LIA VirHost), CNRS, Université Paris-Descartes, Institut Pasteur, Paris, France
| | - Jérôme Bouchet
- Inserm U1016, Institut Cochin, Paris, France.,CNRS, UMR8104, Paris, France.,Université Paris-Descartes, Sorbonne Paris-Cité, Paris, France.,International Associated Laboratory (LIA VirHost), CNRS, Université Paris-Descartes, Institut Pasteur, Paris, France
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27
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Liu YC, Yu MM, Chai YF, Shou ST. Sialic Acids in the Immune Response during Sepsis. Front Immunol 2017; 8:1601. [PMID: 29209331 PMCID: PMC5702289 DOI: 10.3389/fimmu.2017.01601] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 11/06/2017] [Indexed: 12/29/2022] Open
Abstract
Sialic acid-binding immunoglobulin-type lectins (Siglecs) are a group of cell surface transmembrane receptors expressed on immune cells, and regulate immune balance in inflammatory diseases. Sepsis is a life-threatened inflammatory syndrome induced by infection, and the pathogenesis of sepsis includes immune dysregulation, inflammation, and coagulation disorder. Here, we reviewed the various roles acted by Siglecs family in the pathogenesis of sepsis. Siglec-1, Siglec-5, and Siglec-14 play bidirectional roles through modulation of inflammation and immunity. Siglec-2 regulates the immune balance during infection by modulating B cell and T cell response. Siglec-9 helps endocytosis of toll-like receptor 4, regulates macrophages polarization, and inhibits the function of neutrophils during infection. Siglec-10 inhibits danger-associated molecular patterns induced inflammation, helps the initiation of antigen response by T cells, and decreases B-1a cell population to weaken inflammation. Regulating the Siglecs function in the different stages of sepsis holds great potential in the therapy of sepsis.
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Affiliation(s)
- Yan-Cun Liu
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Mu-Ming Yu
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Yan-Fen Chai
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
| | - Song-Tao Shou
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, China
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28
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Martinez-Picado J, McLaren PJ, Telenti A, Izquierdo-Useros N. Retroviruses As Myeloid Cell Riders: What Natural Human Siglec-1 "Knockouts" Tell Us About Pathogenesis. Front Immunol 2017; 8:1593. [PMID: 29209326 PMCID: PMC5702442 DOI: 10.3389/fimmu.2017.01593] [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: 08/14/2017] [Accepted: 11/06/2017] [Indexed: 01/08/2023] Open
Abstract
Myeloid cells initiate immune responses and are crucial to control infections. In the case of retroviruses, however, myeloid cells also promote pathogenesis by enabling viral dissemination; a process extensively studied in vitro using human immunodeficiency virus type 1 (HIV-1). This viral hijacking mechanism does not rely on productive myeloid cell infection but requires HIV-1 capture via Siglec-1/CD169, a receptor expressed on myeloid cells that facilitates the infection of bystander target cells. Murine retroviruses are also recognized by Siglec-1, and this interaction is required for robust retroviral infection in vivo. Yet, the relative contribution of Siglec-1-mediated viral dissemination to HIV-1 disease progression remains unclear. The identification of human null individuals lacking working copies of a particular gene enables studying how this loss affects disease progression. Moreover, it can reveal novel antiviral targets whose blockade might be therapeutically effective and safe, since finding null individuals in natura uncovers dispensable functions. We previously described a loss-of-function variant in SIGLEC-1. Analysis of a large cohort of HIV-1-infected individuals identified homozygous and heterozygous subjects, whose cells were functionally null or partially defective for Siglec-1 activity in HIV-1 capture and transmission ex vivo. Nonetheless, analysis of the effect of Siglec-1 truncation on progression to AIDS was not conclusive due to the limited cohort size, the lack of complete clinical records, and the restriction to study only off-therapy periods. Here, we review how the study of loss-of-function variants might serve to illuminate the role of myeloid cells in viral pathogenesis in vivo and the challenges ahead.
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Affiliation(s)
- Javier Martinez-Picado
- IrsiCaixa AIDS Research Institute, Badalona, Spain.,Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain.,University of Vic-Central University of Catalonia (UVic-UCC), Vic, Spain
| | - Paul J McLaren
- National HIV and Retrovirology Laboratory, Public Health Agency of Canada, Winnipeg, MB, Canada.,Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, MB, Canada
| | - Amalio Telenti
- Genomic Medicine, J. Craig Venter Institute, La Jolla, CA, United States
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29
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Serum glycan-binding IgG antibodies in HIV-1 infection and during the development of broadly neutralizing responses. AIDS 2017; 31:2199-2209. [PMID: 28926408 DOI: 10.1097/qad.0000000000001643] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND The HIV-1 envelope is covered with glycans that provide structural integrity and protect conserved regions from host antibody responses. However, these glycans are often the target of broadly neutralizing antibodies (bNAbs) that emerge in some HIV-infected individuals. We aimed to determine whether antiglycan IgG antibodies are a general response to HIV-1 infection or specific to individuals who develop bNAbs. METHODS IgG binding to glycans was assessed using arrays that contained 245 unique components including N-linked carbohydrates, glycolipids, and Tn-peptides. Sera from 20 HIV-negative and 27 HIV-positive women (including 12 individuals who developed bNAbs) were profiled longitudinally. HIV-1 gp120 proteins were used to compete for binding to the array. RESULTS Antiglycan IgG antibodies fluctuated over a 3-year period, irrespective of HIV infection. However, HIV-positive individuals had elevated binding to 40 components on the array that included Man8, Man9, Tn-peptides, heat shock protein, and glycolipids. Competition experiments confirmed that a proportion of these glycan-binding IgG antibodies were HIV-1-specific, some of which were higher in individuals who developed bNAbs. CONCLUSIONS HIV-1 infection is associated with elevated levels of IgG antibodies to specific glycans. Furthermore, some antiglycan IgG antibodies were more abundant in individuals with bNAbs, suggesting a unique phenotype that may be informative for HIV vaccine design.
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Interferon-Inducible CD169/Siglec1 Attenuates Anti-HIV-1 Effects of Alpha Interferon. J Virol 2017; 91:JVI.00972-17. [PMID: 28794041 DOI: 10.1128/jvi.00972-17] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 08/08/2017] [Indexed: 02/07/2023] Open
Abstract
A hallmark of human immunodeficiency virus type 1 (HIV-1) infection in vivo is chronic immune activation concomitant with type I interferon (IFN) production. Although type I IFN induces an antiviral state in many cell types, HIV-1 can replicate in vivo via mechanisms that have remained unclear. We have recently identified a type I IFN-inducible protein, CD169, as the HIV-1 attachment factor on dendritic cells (DCs) that can mediate robust infection of CD4+ T cells in trans Since CD169 expression on macrophages is also induced by type I IFN, we hypothesized that type I IFN-inducible CD169 could facilitate productive HIV-1 infection in myeloid cells in cis and CD4+ T cells in trans and thus offset antiviral effects of type I IFN. In support of this hypothesis, infection of HIV-1 or murine leukemia virus Env (MLV-Env)-pseudotyped HIV-1 particles was enhanced in IFN-α-treated THP-1 monocytoid cells, and this enhancement was primarily dependent on CD169-mediated enhancement at the virus entry step, a phenomenon phenocopied in HIV-1 infections of IFN-α-treated primary monocyte-derived macrophages (MDMs). Furthermore, expression of CD169, a marker of type I IFN-induced immune activation in vivo, was enhanced in lymph nodes from pigtailed macaques infected with simian immunodeficiency virus (SIV) carrying HIV-1 reverse transcriptase (RT-SHIV), compared to uninfected macaques, and interestingly, there was extensive colocalization of p27gag and CD169, suggesting productive infection of CD169+ myeloid cells in vivo While cell-free HIV-1 infection of IFN-α-treated CD4+ T cells was robustly decreased, initiation of infection in trans via coculture with CD169+ IFN-α-treated DCs restored infection, suggesting that HIV-1 exploits CD169 in cis and in trans to attenuate a type I IFN-induced antiviral state.IMPORTANCE HIV-1 infection in humans causes immune activation characterized by elevated levels of proinflammatory cytokines, including type I interferons (IFN). Although type I IFN induces an antiviral state in many cell types in vitro, HIV-1 can replicate in vivo via mechanisms that have remained unclear. In this study, we tested the hypothesis that CD169, a type I IFN-inducible HIV-1 attachment factor, offsets antiviral effects of type I IFN. Infection of HIV-1 was rescued in IFN-α-treated myeloid cells via upregulation of CD169 and a subsequent increase in CD169-dependent virus entry. Furthermore, extensive colocalization of viral Gag and CD169 was observed in lymph nodes of infected pigtailed macaques, suggesting productive infection of CD169+ cells in vivo Treatment of dendritic cell (DC)-T cell cocultures with IFN-α upregulated CD169 expression on DCs and rescued HIV-1 infection of CD4+ T cells in trans, suggesting that HIV-1 exploits CD169 to attenuate type I IFN-induced restrictions.
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Trans-dissemination of exosomes from HIV-1-infected cells fosters both HIV-1 trans-infection in resting CD4 + T lymphocytes and reactivation of the HIV-1 reservoir. Arch Virol 2017; 162:2565-2577. [PMID: 28474225 DOI: 10.1007/s00705-017-3391-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 04/22/2017] [Indexed: 12/26/2022]
Abstract
Intact HIV-1 and exosomes can be internalized by dendritic cells (DCs) through a common pathway leading to their transmission to CD4+ T lymphocytes by means of mechanisms defined as trans-infection and trans-dissemination, respectively. We previously reported that exosomes from HIV-1-infected cells activate both uninfected quiescent CD4+ T lymphocytes, which become permissive to HIV-1, and latently infected cells, with release of HIV-1 particles. However, nothing is known about the effects of trans-dissemination of exosomes produced by HIV-1-infected cells on uninfected or latently HIV-1-infected CD4+ T lymphocytes. Here, we report that trans-dissemination of exosomes from HIV-1-infected cells induces cell activation in resting CD4+ T lymphocytes, which appears stronger with mature than immature DCs. Using purified preparations of both HIV-1 and exosomes, we observed that mDC-mediated trans-dissemination of exosomes from HIV-1-infected cells to resting CD4+ T lymphocytes induces efficient trans-infection and HIV-1 expression in target cells. Most relevant, when both mDCs and CD4+ T lymphocytes were isolated from combination anti-retroviral therapy (ART)-treated HIV-1-infected patients, trans-dissemination of exosomes from HIV-1-infected cells led to HIV-1 reactivation from the viral reservoir. In sum, our data suggest a role of exosome trans-dissemination in both HIV-1 spread in the infected host and reactivation of the HIV-1 reservoir.
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Mikulak J, Di Vito C, Zaghi E, Mavilio D. Host Immune Responses in HIV-1 Infection: The Emerging Pathogenic Role of Siglecs and Their Clinical Correlates. Front Immunol 2017; 8:314. [PMID: 28386256 PMCID: PMC5362603 DOI: 10.3389/fimmu.2017.00314] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 03/06/2017] [Indexed: 11/25/2022] Open
Abstract
A better understanding of the mechanisms employed by HIV-1 to escape immune responses still represents one of the major tasks required for the development of novel therapeutic approaches targeting a disease still lacking a definitive cure. Host innate immune responses against HIV-1 are key in the early phases of the infection as they could prevent the development and the establishment of two hallmarks of the infection: chronic inflammation and viral reservoirs. Sialic acid-binding immunoglobulin-like lectins (Siglecs) belong to a family of transmembrane proteins able to dampen host immune responses and set appropriate immune activation thresholds upon ligation with their natural ligands, the sialylated carbohydrates. This immune-modulatory function is also targeted by many pathogens that have evolved to express sialic acids on their surface in order to escape host immune responses. HIV-1 envelope glycoprotein 120 (gp120) is extensively covered by carbohydrates playing active roles in life cycle of the virus. Indeed, besides forming a protecting shield from antibody recognition, this coat of N-linked glycans interferes with the folding of viral glycoproteins and enhances virus infectivity. In particular, the sialic acid residues present on gp120 can bind Siglec-7 on natural killer and monocytes/macrophages and Siglec-1 on monocytes/macrophages and dendritic cells. The interactions between these two members of the Siglec family and the sialylated glycans present on HIV-1 envelope either induce or increase HIV-1 entry in conventional and unconventional target cells, thus contributing to viral dissemination and disease progression. In this review, we address the impact of Siglecs in the pathogenesis of HIV-1 infection and discuss how they could be employed as clinic and therapeutic targets.
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Affiliation(s)
- Joanna Mikulak
- Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Rozzano, Italy; Istituto di Ricerca Genetica e Biomedica, UOS di Milano, Consiglio Nazionale delle Ricerche (UOS/IRGB/CNR), Rozzano, Italy
| | - Clara Di Vito
- Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Center , Rozzano , Italy
| | - Elisa Zaghi
- Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Center , Rozzano , Italy
| | - Domenico Mavilio
- Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Rozzano, Italy; Department of Medical Biotechnologies and Translational Medicine (BioMeTra), University of Milan, Milan, Italy
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Proteoliposomal formulations of an HIV-1 gp41-based miniprotein elicit a lipid-dependent immunodominant response overlapping the 2F5 binding motif. Sci Rep 2017; 7:40800. [PMID: 28084464 PMCID: PMC5234007 DOI: 10.1038/srep40800] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 12/12/2016] [Indexed: 12/15/2022] Open
Abstract
The HIV-1 gp41 Membrane Proximal External Region (MPER) is recognized by broadly neutralizing antibodies and represents a promising vaccine target. However, MPER immunogenicity and antibody activity are influenced by membrane lipids. To evaluate lipid modulation of MPER immunogenicity, we generated a 1-Palmitoyl-2-oleoylphosphatidylcholine (POPC)-based proteoliposome collection containing combinations of phosphatidylserine (PS), GM3 ganglioside, cholesterol (CHOL), sphingomyelin (SM) and the TLR4 agonist monophosphoryl lipid A (MPLA). A recombinant gp41-derived miniprotein (gp41-MinTT) exposing the MPER and a tetanus toxoid (TT) peptide that favors MHC-II presentation, was successfully incorporated into lipid mixtures (>85%). Immunization of mice with soluble gp41-MinTT exclusively induced responses against the TT peptide, while POPC proteoliposomes generated potent anti-gp41 IgG responses using lower protein doses. The combined addition of PS and GM3 or CHOL/SM to POPC liposomes greatly increased gp41 immunogenicity, which was further enhanced by the addition of MPLA. Responses generated by all proteoliposomes targeted the N-terminal moiety of MPER overlapping the 2F5 neutralizing epitope. Our data show that lipids impact both, the epitope targeted and the magnitude of the response to membrane-dependent antigens, helping to improve MPER-based lipid carriers. Moreover, the identification of immunodominant epitopes allows for the redesign of immunogens targeting MPER neutralizing determinants.
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Jobe O, Kim J, Rao M. The role of Siglec-1 in HIV-1/macrophage interaction. MACROPHAGE 2016; 3:e1435. [PMID: 28286869 PMCID: PMC5341613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Although CD4 T-cells are a major target for HIV, recent work has demonstrated the ability of macrophages despite expressing relatively low levels of CD4, to be a target of the virus. Our recent study has found that the presence of growth factors not only play a role in the phenotype of these monocyte-derived-macrophages, but also are an important aspect of the permissiveness of these cells to infection. The work utilized cellular and biophysical methods to examine Siglec-1 on macrophages as a primary receptor in HIV-1 infection. These findings support the notion that Siglec-1 and macrophages and their interactions with the HIV-1 envelope should be considered in HIV-1 vaccine development.
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Affiliation(s)
- Ousman Jobe
- Henry M. Jackson Foundation for the Advancement of Military Medicine, U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, 20910, USA
- Laboratory of Adjuvant and Antigen Research, U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, 20910, USA
| | - Jiae Kim
- Henry M. Jackson Foundation for the Advancement of Military Medicine, U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, 20910, USA
- Laboratory of Adjuvant and Antigen Research, U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, 20910, USA
| | - Mangala Rao
- Laboratory of Adjuvant and Antigen Research, U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, 20910, USA
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Cell-Free versus Cell-to-Cell Infection by Human Immunodeficiency Virus Type 1 and Human T-Lymphotropic Virus Type 1: Exploring the Link among Viral Source, Viral Trafficking, and Viral Replication. J Virol 2016; 90:7607-17. [PMID: 27334587 DOI: 10.1128/jvi.00407-16] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Human immunodeficiency virus type 1 (HIV-1) and human T-lymphotropic virus type 1 (HTLV-1) are complex retroviruses mainly infecting CD4(+) T lymphocytes. In addition, antigen-presenting cells such as dendritic cells (DCs) are targeted in vivo by both viruses, although to a lesser extent. Interaction of HIV-1 with DCs plays a key role in viral dissemination from the mucosa to CD4(+) T lymphocytes present in lymphoid organs. While similar mechanisms may occur for HTLV-1 as well, most HTLV-1 data were obtained from T-cell studies, and little is known regarding the trafficking of this virus in DCs. We first compared the efficiency of cell-free versus cell-associated viral sources of both retroviruses at infecting DCs. We showed that both HIV-1 and HTLV-1 cell-free particles are poorly efficient at productively infecting DCs, except when DC-SIGN has been engaged. Furthermore, while SAMHD-1 accounts for restriction of cell-free HIV-1 infection, it is not involved in HTLV-1 restriction. In addition, cell-free viruses lead mainly to a nonproductive DC infection, leading to trans-infection of T-cells, a process important for HIV-1 spread but not for that of HTLV-1. Finally, we show that T-DC cell-to-cell transfer implies viral trafficking in vesicles that may both increase productive infection of DCs ("cis-infection") and allow viral escape from immune surveillance. Altogether, these observations allowed us to draw a model of HTLV-1 and HIV-1 trafficking in DCs.
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36
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Martinez-Picado J, McLaren PJ, Erkizia I, Martin MP, Benet S, Rotger M, Dalmau J, Ouchi D, Wolinsky SM, Penugonda S, Günthard HF, Fellay J, Carrington M, Izquierdo-Useros N, Telenti A. Identification of Siglec-1 null individuals infected with HIV-1. Nat Commun 2016; 7:12412. [PMID: 27510803 PMCID: PMC4987525 DOI: 10.1038/ncomms12412] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 06/30/2016] [Indexed: 12/16/2022] Open
Abstract
Siglec-1/CD169 is a myeloid-cell surface receptor critical for HIV-1 capture and infection of bystander target cells. To dissect the role of SIGLEC1 in natura, we scan a large population genetic database and identify a loss-of-function variant (Glu88Ter) that is found in ∼1% of healthy people. Exome analysis and direct genotyping of 4,233 HIV-1-infected individuals reveals two Glu88Ter homozygous and 97 heterozygous subjects, allowing the analysis of ex vivo and in vivo consequences of SIGLEC1 loss-of-function. Cells from these individuals are functionally null or haploinsufficient for Siglec-1 activity in HIV-1 capture and trans-infection ex vivo. However, Siglec-1 protein truncation does not have a measurable impact on HIV-1 acquisition or AIDS outcomes in vivo. This result contrasts with the known in vitro functional role of Siglec-1 in HIV-1 trans-infection. Thus, it provides evidence that the classical HIV-1 infectious routes may compensate for the lack of Siglec-1 in fuelling HIV-1 dissemination within infected individuals. Binding of virus, HIV-1, to cellular protein Siglec-1 is important for infection of immune cells. Here the authors show that a natural mutation leading to production of truncated Siglec-1 reduces HIV binding and infectivity transfer in vitro, but does not substantially affect infection or AIDS outcome in patients.
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Affiliation(s)
- Javier Martinez-Picado
- AIDS Research Institute IrsiCaixa, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol (IGTP), Universitat Autònoma de Barcelona, 08916 Badalona, Spain.,Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain.,University of Vic-Central University of Catalonia (UVic-UCC), 08500 Vic, Barcelona, Spain
| | - Paul J McLaren
- National HIV and Retrovirology Laboratory, Public Health Agency of Canada, Winnipeg, MB, Canada R3E 0W3.,Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, MB, Canada R3E 0J9
| | - Itziar Erkizia
- AIDS Research Institute IrsiCaixa, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol (IGTP), Universitat Autònoma de Barcelona, 08916 Badalona, Spain
| | - Maureen P Martin
- Cancer and Inflammation Program, Laboratory of Experimental Immunology, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland 21702, USA
| | - Susana Benet
- AIDS Research Institute IrsiCaixa, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol (IGTP), Universitat Autònoma de Barcelona, 08916 Badalona, Spain
| | - Margalida Rotger
- Institute of Microbiology, University Hospital Center and University of Lausanne, 1011 Lausanne, Switzerland
| | - Judith Dalmau
- AIDS Research Institute IrsiCaixa, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol (IGTP), Universitat Autònoma de Barcelona, 08916 Badalona, Spain
| | - Dan Ouchi
- AIDS Research Institute IrsiCaixa, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol (IGTP), Universitat Autònoma de Barcelona, 08916 Badalona, Spain
| | - Steven M Wolinsky
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611, USA
| | - Sudhir Penugonda
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611, USA
| | - Huldrych F Günthard
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland.,Institute of Medical Virology, University of Zurich, 8057 Zurich, Switzerland
| | - Jacques Fellay
- School of Life Sciences, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland.,Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Mary Carrington
- Cancer and Inflammation Program, Laboratory of Experimental Immunology, Leidos Biomedical Research, Inc., Frederick National Laboratory for Cancer Research, Frederick, Maryland 21702, USA.,Ragon Institute for MGH, MIT and Harvard, Cambridge, Massachusetts 02139, USA
| | - Nuria Izquierdo-Useros
- AIDS Research Institute IrsiCaixa, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol (IGTP), Universitat Autònoma de Barcelona, 08916 Badalona, Spain
| | - Amalio Telenti
- Genomic Medicine, J. Craig Venter Institute, La Jolla, California 12037, USA
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Kijewski SDG, Akiyama H, Feizpour A, Miller CM, Ramirez NGP, Reinhard BM, Gummuluru S. Access of HIV-2 to CD169-dependent dendritic cell-mediated trans infection pathway is attenuated. Virology 2016; 497:328-336. [PMID: 27521724 DOI: 10.1016/j.virol.2016.07.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 07/27/2016] [Accepted: 07/28/2016] [Indexed: 10/21/2022]
Abstract
The mechanisms behind the low viral loads and lower mortality rates of HIV-2(+) individuals remain unknown. We hypothesized that reduced interaction of HIV-2 with CD169, the primary HIV-1 attachment factor on monocyte-derived dendritic cells (DCs) that targets captured virus particles to the trans infection pathway, contributes to its diminished pathogenic phenotype in vivo. We observed a significant decrease in capture of HIV-2 Gag-eGFP virus-like particles (VLPs) and infectious GFP-containing HIV-2 particles compared to corresponding HIV-1 particles by CD169(+) mature DCs. Interestingly, there was decreased co-localization of HIV-2 with HIV-1 Gag at plasma membrane microdomains in virus producer cells which correlated with reduced incorporation of GM3, the CD169 ligand, in HIV-2 virions, and reduction in mature DC-mediated HIV-2 trans infection compared to HIV-1. We conclude that limited interaction of HIV-2 with CD169 diminishes virus access to the mature DC-mediated trans infection pathway and might result in attenuated HIV-2 dissemination in vivo.
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Affiliation(s)
- Suzanne D G Kijewski
- Department of Microbiology, Boston University School of Medicine, Boston, MA 02118, USA.
| | - Hisashi Akiyama
- Department of Microbiology, Boston University School of Medicine, Boston, MA 02118, USA.
| | - Amin Feizpour
- Department of Chemistry and The Photonics Center, Boston University, Boston, MA 02215, USA.
| | - Caitlin M Miller
- Department of Pathology, Boston University School of Medicine, Boston, MA 02118, USA.
| | | | - Björn M Reinhard
- Department of Chemistry and The Photonics Center, Boston University, Boston, MA 02215, USA.
| | - Suryaram Gummuluru
- Department of Microbiology, Boston University School of Medicine, Boston, MA 02118, USA.
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38
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Viruses exploit the tissue physiology of the host to spread in vivo. Curr Opin Cell Biol 2016; 41:81-90. [PMID: 27149407 DOI: 10.1016/j.ceb.2016.04.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 04/11/2016] [Accepted: 04/20/2016] [Indexed: 02/07/2023]
Abstract
Viruses are pathogens that strictly depend on their host for propagation. Over years of co-evolution viruses have become experts in exploiting the host cell biology and physiology to ensure efficient replication and spread. Here, we will first summarize the concepts that have emerged from in vitro cell culture studies to understand virus spread. We will then review the results from studies in living animals that reveal how viruses exploit the natural flow of body fluids, specific tissue architecture, and patterns of cell circulation and migration to spread within the host. Understanding tissue physiology will be critical for the design of antiviral strategies that prevent virus dissemination.
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Jobe O, Trinh HV, Kim J, Alsalmi W, Tovanabutra S, Ehrenberg PK, Peachman KK, Gao G, Thomas R, Kim JH, Michael NL, Alving CR, Rao VB, Rao M. Effect of cytokines on Siglec-1 and HIV-1 entry in monocyte-derived macrophages: the importance of HIV-1 envelope V1V2 region. J Leukoc Biol 2015; 99:1089-106. [PMID: 26667473 PMCID: PMC4952014 DOI: 10.1189/jlb.2a0815-361r] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 11/17/2015] [Indexed: 02/02/2023] Open
Abstract
M-CSF increased Siglec-1 expression on macrophages, rendering them more permissive to HIV-1 infection due to interaction with V1V2 region of gp120 and associated sialic acids. Monocytes and monocyte–derived macrophages express relatively low levels of CD4. Despite this, macrophages can be effectively infected with human immunodeficiency virus type 1. Macrophages have a critical role in human immunodeficiency virus type 1 transmission; however, the mechanism or mechanisms of virus infection are poorly understood. We report that growth factors, such as granulocyte macrophage colony-stimulating factor and macrophage colony-stimulating factor affect the phenotypic profile and permissiveness of macrophages to human immunodeficiency virus type 1. Human immunodeficiency virus type 1 infection of monocyte–derived macrophages derived from granulocyte macrophage and macrophage colony-stimulating factors was predominantly facilitated by the sialic acid-binding immunoglobulin-like lectin-1. The number of sialic acid-binding immunoglobulin-like lectin receptors on macrophage colony-stimulating factor–derived monocyte–derived macrophages was significantly greater than on granulocyte macrophage colony-stimulating factor–derived monocyte–derived macrophages, and correspondingly, human immunodeficiency virus type 1 infection was greater in the macrophage colony-stimulating factor–derived monocyte–derived macrophages. Single-genome analysis and quantitative reverse transcriptase-polymerase chain reaction revealed that the differences in infectivity was not due to differences in viral fitness or in viral variants with differential infectivity but was due to reduced viral entry into the granulocyte macrophage colony-stimulating factor–derived monocyte–derived macrophages. Anti-sialic acid-binding immunoglobulin-like lectin, trimeric glycoprotein 145, and scaffolded V1V2 proteins were bound to sialic acid-binding immunoglobulin-like lectin and significantly reduced human immunodeficiency virus type 1 entry and infection. Furthermore, sialic acid residues present in the V1V2 region of the envelope protein mediated human immunodeficiency virus type 1 interaction with sialic acid-binding immunoglobulin-like lectin and entry into macrophage colony-stimulating factor–derived monocyte–derived macrophages. Removal of sialic acid residues or glycans from scaffolded V1V2 protein decreased human immunodeficiency virus type 1 infectivity. These results highlight the importance of sialic acids on the V1V2 region in binding to sialic acid-binding immunoglobulin-like lectin and suggest that the unusually long surface-exposed sialic acid-binding immunoglobulin-like lectin might aid in the capture and entry of human immunodeficiency virus type 1 into monocyte–derived macrophages.
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Affiliation(s)
- Ousman Jobe
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Silver Spring, Maryland, USA; Laboratory of Adjuvant and Antigen Research, U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
| | - Hung V Trinh
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Silver Spring, Maryland, USA; Laboratory of Adjuvant and Antigen Research, U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
| | - Jiae Kim
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Silver Spring, Maryland, USA; Laboratory of Adjuvant and Antigen Research, U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
| | - Wadad Alsalmi
- Department of Biology, The Catholic University of America, Washington, DC, USA
| | - Sodsai Tovanabutra
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Silver Spring, Maryland, USA; Laboratory of Molecular Virology and Pathogenesis, Viral Sequencing Core, U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA; and
| | - Philip K Ehrenberg
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Silver Spring, Maryland, USA; Host Genetics Section, U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA; and
| | - Kristina K Peachman
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Silver Spring, Maryland, USA; Laboratory of Adjuvant and Antigen Research, U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
| | - Guofen Gao
- Department of Biology, The Catholic University of America, Washington, DC, USA
| | - Rasmi Thomas
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Silver Spring, Maryland, USA; Host Genetics Section, U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA; and
| | - Jerome H Kim
- Laboratory of Molecular Virology and Pathogenesis, Viral Sequencing Core, U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA; and
| | - Nelson L Michael
- Laboratory of Molecular Virology and Pathogenesis, Viral Sequencing Core, U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA; and
| | - Carl R Alving
- Laboratory of Adjuvant and Antigen Research, U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA
| | - Venigalla B Rao
- Department of Biology, The Catholic University of America, Washington, DC, USA
| | - Mangala Rao
- Laboratory of Adjuvant and Antigen Research, U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland, USA;
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Sewald X, Ladinsky MS, Uchil PD, Beloor J, Pi R, Herrmann C, Motamedi N, Murooka TT, Brehm MA, Greiner DL, Shultz LD, Mempel TR, Bjorkman PJ, Kumar P, Mothes W. Retroviruses use CD169-mediated trans-infection of permissive lymphocytes to establish infection. Science 2015; 350:563-567. [PMID: 26429886 DOI: 10.1126/science.aab2749] [Citation(s) in RCA: 129] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 09/17/2015] [Indexed: 01/04/2023]
Abstract
Dendritic cells can capture and transfer retroviruses in vitro across synaptic cell-cell contacts to uninfected cells, a process called trans-infection. Whether trans-infection contributes to retroviral spread in vivo remains unknown. Here, we visualize how retroviruses disseminate in secondary lymphoid tissues of living mice. We demonstrate that murine leukemia virus (MLV) and human immunodeficiency virus (HIV) are first captured by sinus-lining macrophages. CD169/Siglec-1, an I-type lectin that recognizes gangliosides, captures the virus. MLV-laden macrophages then form long-lived synaptic contacts to trans-infect B-1 cells. Infected B-1 cells subsequently migrate into the lymph node to spread the infection through virological synapses. Robust infection in lymph nodes and spleen requires CD169, suggesting that a combination of fluid-based movement followed by CD169-dependent trans-infection can contribute to viral spread.
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Affiliation(s)
- Xaver Sewald
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Mark S Ladinsky
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Pradeep D Uchil
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Jagadish Beloor
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Ruoxi Pi
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Christin Herrmann
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Nasim Motamedi
- Department of Genetics, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Thomas T Murooka
- Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Michael A Brehm
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA 01655, USA
| | - Dale L Greiner
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, MA 01655, USA
| | | | - Thorsten R Mempel
- Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Pamela J Bjorkman
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - Priti Kumar
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Walther Mothes
- Department of Microbial Pathogenesis, Yale University School of Medicine, New Haven, CT 06510, USA
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41
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Erikson E, Wratil PR, Frank M, Ambiel I, Pahnke K, Pino M, Azadi P, Izquierdo-Useros N, Martinez-Picado J, Meier C, Schnaar RL, Crocker PR, Reutter W, Keppler OT. Mouse Siglec-1 Mediates trans-Infection of Surface-bound Murine Leukemia Virus in a Sialic Acid N-Acyl Side Chain-dependent Manner. J Biol Chem 2015; 290:27345-27359. [PMID: 26370074 DOI: 10.1074/jbc.m115.681338] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Indexed: 01/21/2023] Open
Abstract
Siglec-1 (sialoadhesin, CD169) is a surface receptor on human cells that mediates trans-enhancement of HIV-1 infection through recognition of sialic acid moieties in virus membrane gangliosides. Here, we demonstrate that mouse Siglec-1, expressed on the surface of primary macrophages in an interferon-α-responsive manner, captures murine leukemia virus (MLV) particles and mediates their transfer to proliferating lymphocytes. The MLV infection of primary B-cells was markedly more efficient than that of primary T-cells. The major structural protein of MLV particles, Gag, frequently co-localized with Siglec-1, and trans-infection, primarily of surface-bound MLV particles, efficiently occurred. To explore the role of sialic acid for MLV trans-infection at a submolecular level, we analyzed the potential of six sialic acid precursor analogs to modulate the sialylated ganglioside-dependent interaction of MLV particles with Siglec-1. Biosynthetically engineered sialic acids were detected in both the glycolipid and glycoprotein fractions of MLV producer cells. MLV released from cells carrying N-acyl-modified sialic acids displayed strikingly different capacities for Siglec-1-mediated capture and trans-infection; N-butanoyl, N-isobutanoyl, N-glycolyl, or N-pentanoyl side chain modifications resulted in up to 92 and 80% reduction of virus particle capture and trans-infection, respectively, whereas N-propanoyl or N-cyclopropylcarbamyl side chains had no effect. In agreement with these functional analyses, molecular modeling indicated reduced binding affinities for non-functional N-acyl modifications. Thus, Siglec-1 is a key receptor for macrophage/lymphocyte trans-infection of surface-bound virions, and the N-acyl side chain of sialic acid is a critical determinant for the Siglec-1/MLV interaction.
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Affiliation(s)
- Elina Erikson
- Institute of Medical Virology, National Reference Center for Retroviruses, University of Frankfurt, 60596 Frankfurt am Main, Germany,; Department of Infectious Diseases, Virology, University of Heidelberg, 69120 Heidelberg, Germany
| | - Paul R Wratil
- the Institut für Laboratoriumsmedizin, Klinische Chemie und Pathobiochemie, Charité Universitätsmedizin Berlin, 12200 Berlin, Germany
| | | | - Ina Ambiel
- Institute of Medical Virology, National Reference Center for Retroviruses, University of Frankfurt, 60596 Frankfurt am Main, Germany
| | - Katharina Pahnke
- Organic Chemistry, Department of Chemistry, Faculty of Sciences, University of Hamburg, 20146 Hamburg, Germany
| | - Maria Pino
- the AIDS Research Institute IrsiCaixa, Institut d'Investigatio en Ciencies de la Salut Germans Trias I Pujol, Universitat Autonoma de Barcelona, 08916 Barcelona, Spain
| | - Parastoo Azadi
- the Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia 30602
| | - Nuria Izquierdo-Useros
- the AIDS Research Institute IrsiCaixa, Institut d'Investigatio en Ciencies de la Salut Germans Trias I Pujol, Universitat Autonoma de Barcelona, 08916 Barcelona, Spain
| | - Javier Martinez-Picado
- the AIDS Research Institute IrsiCaixa, Institut d'Investigatio en Ciencies de la Salut Germans Trias I Pujol, Universitat Autonoma de Barcelona, 08916 Barcelona, Spain,; the Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain
| | - Chris Meier
- Organic Chemistry, Department of Chemistry, Faculty of Sciences, University of Hamburg, 20146 Hamburg, Germany
| | - Ronald L Schnaar
- Departments of Pharmacology and Neuroscience, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21218
| | - Paul R Crocker
- College of Life Sciences, University of Dundee, Dundee DD1 5EH, Scotland, United Kingdom
| | - Werner Reutter
- the Institut für Laboratoriumsmedizin, Klinische Chemie und Pathobiochemie, Charité Universitätsmedizin Berlin, 12200 Berlin, Germany
| | - Oliver T Keppler
- Institute of Medical Virology, National Reference Center for Retroviruses, University of Frankfurt, 60596 Frankfurt am Main, Germany,; Department of Infectious Diseases, Virology, University of Heidelberg, 69120 Heidelberg, Germany,.
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42
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Höhn K, Fuchs J, Fröber A, Kirmse R, Glass B, Anders-Össwein M, Walther P, Kräusslich HG, Dietrich C. Preservation of protein fluorescence in embedded human dendritic cells for targeted 3D light and electron microscopy. J Microsc 2015; 259:121-128. [PMID: 25786567 PMCID: PMC4757415 DOI: 10.1111/jmi.12230] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Accepted: 01/28/2015] [Indexed: 11/28/2022]
Abstract
In this study, we present a correlative microscopy workflow to combine detailed 3D fluorescence light microscopy data with ultrastructural information gained by 3D focused ion beam assisted scanning electron microscopy. The workflow is based on an optimized high pressure freezing/freeze substitution protocol that preserves good ultrastructural detail along with retaining the fluorescence signal in the resin embedded specimens. Consequently, cellular structures of interest can readily be identified and imaged by state of the art 3D confocal fluorescence microscopy and are precisely referenced with respect to an imprinted coordinate system on the surface of the resin block. This allows precise guidance of the focused ion beam assisted scanning electron microscopy and limits the volume to be imaged to the structure of interest. This, in turn, minimizes the total acquisition time necessary to conduct the time consuming ultrastructural scanning electron microscope imaging while eliminating the risk to miss parts of the target structure. We illustrate the value of this workflow for targeting virus compartments, which are formed in HIV-pulsed mature human dendritic cells.
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Affiliation(s)
- K Höhn
- Department of Infectious Diseases, Virology, University Hospital Heidelberg, Heidelberg, Germany
| | - J Fuchs
- Carl Zeiss AG, Oberkochen, Germany
| | - A Fröber
- Carl Zeiss AG, Oberkochen, Germany
| | - R Kirmse
- Carl Zeiss Microscopy GmbH, Jena, Germany
| | - B Glass
- Department of Infectious Diseases, Virology, University Hospital Heidelberg, Heidelberg, Germany
| | - M Anders-Össwein
- Department of Infectious Diseases, Virology, University Hospital Heidelberg, Heidelberg, Germany
| | - P Walther
- Electron Microscopy Facility, Ulm University, Ulm, Germany
| | - H-G Kräusslich
- Department of Infectious Diseases, Virology, University Hospital Heidelberg, Heidelberg, Germany
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43
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Suhre K, Schwartz JE, Sharma VK, Chen Q, Lee JR, Muthukumar T, Dadhania DM, Ding R, Ikle DN, Bridges ND, Williams NM, Kastenmüller G, Karoly ED, Mohney RP, Abecassis M, Friedewald J, Knechtle SJ, Becker YT, Samstein B, Shaked A, Gross SS, Suthanthiran M. Urine Metabolite Profiles Predictive of Human Kidney Allograft Status. J Am Soc Nephrol 2015; 27:626-36. [PMID: 26047788 DOI: 10.1681/asn.2015010107] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 04/15/2015] [Indexed: 12/29/2022] Open
Abstract
Noninvasive diagnosis and prognostication of acute cellular rejection in the kidney allograft may help realize the full benefits of kidney transplantation. To investigate whether urine metabolites predict kidney allograft status, we determined levels of 749 metabolites in 1516 urine samples from 241 kidney graft recipients enrolled in the prospective multicenter Clinical Trials in Organ Transplantation-04 study. A metabolite signature of the ratio of 3-sialyllactose to xanthosine in biopsy specimen-matched urine supernatants best discriminated acute cellular rejection biopsy specimens from specimens without rejection. For clinical application, we developed a high-throughput mass spectrometry-based assay that enabled absolute and rapid quantification of the 3-sialyllactose-to-xanthosine ratio in urine samples. A composite signature of ratios of 3-sialyllactose to xanthosine and quinolinate to X-16397 and our previously reported urinary cell mRNA signature of 18S ribosomal RNA, CD3ε mRNA, and interferon-inducible protein-10 mRNA outperformed the metabolite signatures and the mRNA signature. The area under the receiver operating characteristics curve for the composite metabolite-mRNA signature was 0.93, and the signature was diagnostic of acute cellular rejection with a specificity of 84% and a sensitivity of 90%. The composite signature, developed using solely biopsy specimen-matched urine samples, predicted future acute cellular rejection when applied to pristine samples taken days to weeks before biopsy. We conclude that metabolite profiling of urine offers a noninvasive means of diagnosing and prognosticating acute cellular rejection in the human kidney allograft, and that the combined metabolite and mRNA signature is diagnostic and prognostic of acute cellular rejection with very high accuracy.
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Affiliation(s)
- Karsten Suhre
- Department of Physiology and Biophysics, Weill Cornell Medical College in Qatar, Doha, Qatar; Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Joseph E Schwartz
- Department of Psychiatry, Stony Brook University, Stony Brook, New York; Division of Nephrology and Hypertension, Departments of Medicine and Transplantation Medicine, New York Presbyterian Hospital-Weill Cornell Medical Center, New York, New York
| | - Vijay K Sharma
- Division of Nephrology and Hypertension, Departments of Medicine and Transplantation Medicine, New York Presbyterian Hospital-Weill Cornell Medical Center, New York, New York
| | - Qiuying Chen
- Department of Pharmacology, Weill Cornell College of Medicine, New York, New York
| | - John R Lee
- Division of Nephrology and Hypertension, Departments of Medicine and Transplantation Medicine, New York Presbyterian Hospital-Weill Cornell Medical Center, New York, New York
| | - Thangamani Muthukumar
- Division of Nephrology and Hypertension, Departments of Medicine and Transplantation Medicine, New York Presbyterian Hospital-Weill Cornell Medical Center, New York, New York
| | - Darshana M Dadhania
- Division of Nephrology and Hypertension, Departments of Medicine and Transplantation Medicine, New York Presbyterian Hospital-Weill Cornell Medical Center, New York, New York
| | - Ruchuang Ding
- Division of Nephrology and Hypertension, Departments of Medicine and Transplantation Medicine, New York Presbyterian Hospital-Weill Cornell Medical Center, New York, New York
| | - David N Ikle
- Rho Federal Systems, Chapel Hill, North Carolina
| | - Nancy D Bridges
- National Institute of Allergy and Infectious Diseases, Bethesda, Maryland
| | - Nikki M Williams
- National Institute of Allergy and Infectious Diseases, Bethesda, Maryland
| | - Gabi Kastenmüller
- Institute of Bioinformatics and Systems Biology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | | | | | - Michael Abecassis
- Division of Surgery-Organ Transplantation, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - John Friedewald
- Division of Nephrology-Organ Transplantation, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Stuart J Knechtle
- Division of Surgery, Department of Surgery, University of Wisconsin Hospitals and Clinics, Madison, Wisconsin
| | - Yolanda T Becker
- Division of Surgery, Department of Surgery, University of Wisconsin Hospitals and Clinics, Madison, Wisconsin
| | - Benjamin Samstein
- Division of Transplantation, Department of Surgery, Columbia University College of Physicians and Surgeons, New York, New York; and
| | - Abraham Shaked
- Department of Surgery, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania
| | - Steven S Gross
- Department of Pharmacology, Weill Cornell College of Medicine, New York, New York
| | - Manikkam Suthanthiran
- Division of Nephrology and Hypertension, Departments of Medicine and Transplantation Medicine, New York Presbyterian Hospital-Weill Cornell Medical Center, New York, New York;
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44
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Pino M, Erkizia I, Benet S, Erikson E, Fernández-Figueras MT, Guerrero D, Dalmau J, Ouchi D, Rausell A, Ciuffi A, Keppler OT, Telenti A, Kräusslich HG, Martinez-Picado J, Izquierdo-Useros N. HIV-1 immune activation induces Siglec-1 expression and enhances viral trans-infection in blood and tissue myeloid cells. Retrovirology 2015; 12:37. [PMID: 25947229 PMCID: PMC4423124 DOI: 10.1186/s12977-015-0160-x] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 03/24/2015] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Myeloid cells are key players in the recognition and response of the host against invading viruses. Paradoxically, upon HIV-1 infection, myeloid cells might also promote viral pathogenesis through trans-infection, a mechanism that promotes HIV-1 transmission to target cells via viral capture and storage. The receptor Siglec-1 (CD169) potently enhances HIV-1 trans-infection and is regulated by immune activating signals present throughout the course of HIV-1 infection, such as interferon α (IFNα). RESULTS Here we show that IFNα-activated dendritic cells, monocytes and macrophages have an enhanced ability to capture and trans-infect HIV-1 via Siglec-1 recognition of viral membrane gangliosides. Monocytes from untreated HIV-1-infected individuals trans-infect HIV-1 via Siglec-1, but this capacity diminishes after effective antiretroviral treatment. Furthermore, Siglec-1 is expressed on myeloid cells residing in lymphoid tissues, where it can mediate viral trans-infection. CONCLUSIONS Siglec-1 on myeloid cells could fuel novel CD4(+) T-cell infections and contribute to HIV-1 dissemination in vivo.
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Affiliation(s)
- Maria Pino
- AIDS Research Institute IrsiCaixa, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol IGTP, Universitat Autònoma de Barcelona, Badalona, Spain.
| | - Itziar Erkizia
- AIDS Research Institute IrsiCaixa, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol IGTP, Universitat Autònoma de Barcelona, Badalona, Spain.
| | - Susana Benet
- AIDS Research Institute IrsiCaixa, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol IGTP, Universitat Autònoma de Barcelona, Badalona, Spain.
| | - Elina Erikson
- Institute of Medical Virology, National Reference Center for Retroviruses, University of Frankfurt, Frankfurt, Germany. .,Department of Infectious Diseases, Virology, Universitätsklinikum Heidelberg, Heidelberg, Germany.
| | | | | | - Judith Dalmau
- AIDS Research Institute IrsiCaixa, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol IGTP, Universitat Autònoma de Barcelona, Badalona, Spain.
| | - Dan Ouchi
- AIDS Research Institute IrsiCaixa, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol IGTP, Universitat Autònoma de Barcelona, Badalona, Spain.
| | - Antonio Rausell
- Institute of Microbiology, University Hospital Center and University of Lausanne, Lausanne, Switzerland. .,Swiss Institute of Bioinformatics (SIB) - Vital-IT, Lausanne, Switzerland.
| | - Angela Ciuffi
- Institute of Microbiology, University Hospital Center and University of Lausanne, Lausanne, Switzerland.
| | - Oliver T Keppler
- Institute of Medical Virology, National Reference Center for Retroviruses, University of Frankfurt, Frankfurt, Germany.
| | - Amalio Telenti
- Institute of Microbiology, University Hospital Center and University of Lausanne, Lausanne, Switzerland. .,Current address: The J. Craig Venter Institute, La Jolla, CA, USA.
| | - Hans-Georg Kräusslich
- Department of Infectious Diseases, Virology, Universitätsklinikum Heidelberg, Heidelberg, Germany.
| | - Javier Martinez-Picado
- AIDS Research Institute IrsiCaixa, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol IGTP, Universitat Autònoma de Barcelona, Badalona, Spain. .,Institució Catalana de Recerca i Estudis Avançats ICREA, Barcelona, Spain. .,University of Vic-Central University of Catalonia (UVic-UCC), Vic, Spain.
| | - Nuria Izquierdo-Useros
- AIDS Research Institute IrsiCaixa, Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol IGTP, Universitat Autònoma de Barcelona, Badalona, Spain.
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45
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Feizpour A, Yu X, Edmans E, Reinhard BM. Quantifying lipid contents in enveloped virus particles with plasmonic nanoparticles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:1592-1602. [PMID: 25382201 PMCID: PMC4447146 DOI: 10.1002/smll.201402184] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 09/25/2014] [Indexed: 05/30/2023]
Abstract
Phosphatidylserine (PS) and monosialotetrahexosylganglioside (GM1 ) are examples of two host-derived lipids in the membrane of enveloped virus particles that are known to contribute to virus attachment, uptake, and ultimately dissemination. A quantitative characterization of their contribution to the functionality of the virus requires information about their relative concentrations in the viral membrane. Here, a gold nanoparticle (NP) binding assay for probing relative PS and GM1 lipid concentrations in the outer leaflet of different HIV-1 and Ebola virus-like particles (VLPs) using sample sizes of less than 3 × 10(6) particles is introduced. The assay evaluates both scattering intensity and resonance wavelength, and determines relative NP densities through plasmon coupling as a measure for the target lipid concentrations in the NP-labeled VLP membrane. A correlation of the optical observables with absolute lipid contents is achieved by calibration of the plasmon coupling-based methodology with unilamellar liposomes of known PS or GM1 concentration. The performed studies reveal significant differences in the membrane of VLPs that assemble at different intracellular sites and pave the way to an optical quantification of lipid concentration in virus particles at physiological titers.
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46
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Akiyama H, Ramirez NGP, Gudheti MV, Gummuluru S. CD169-mediated trafficking of HIV to plasma membrane invaginations in dendritic cells attenuates efficacy of anti-gp120 broadly neutralizing antibodies. PLoS Pathog 2015; 11:e1004751. [PMID: 25760631 PMCID: PMC4356592 DOI: 10.1371/journal.ppat.1004751] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Accepted: 02/17/2015] [Indexed: 01/12/2023] Open
Abstract
Myeloid dendritic cells (DCs) can capture HIV-1 via the receptor CD169/Siglec-1 that binds to the ganglioside, GM3, in the virus particle membrane. In turn, HIV-1 particles captured by CD169, an I-type lectin, whose expression on DCs is enhanced upon maturation with LPS, are protected from degradation in CD169+ virus-containing compartments (VCCs) and disseminated to CD4+ T cells, a mechanism of DC-mediated HIV-1 trans-infection. In this study, we describe the mechanism of VCC formation and its role in immune evasion mechanisms of HIV-1. We find HIV-1-induced formation of VCCs is restricted to myeloid cells, and that the cytoplasmic tail of CD169 is dispensable for HIV-1 trafficking and retention within VCCs and subsequent trans-infection to CD4+ T cells. Interestingly, introduction of a di-aromatic endocytic motif in the cytoplasmic tail of CD169 that results in endocytosis of HIV-1 particles, suppressed CD169-mediated HIV-1 trans-infection. Furthermore, super-resolution microscopy revealed close association of CD169 and HIV-1 particles in surface-accessible but deep plasma membrane invaginations. Intriguingly, HIV-1 particles in deep VCCs were inefficiently accessed by anti-gp120 broadly neutralizing antibodies, VRC01 and NIH45-46 G54W, and thus were less susceptible to neutralization. Our study suggests that HIV-1 capture by CD169 can provide virus evasion from both innate (phagocytosis) and adaptive immune responses. Dendritic cells (DCs) are professional antigen presenting cells, and their sentinel roles are important to elicit a potent antiviral immunity. However, HIV-1 has exploited DCs to spread infection by several mechanisms. One such mechanism is the DC-mediated trans-infection pathway, whereby DCs transmit captured virus to CD4+ T cells. We have recently identified the type I interferon (IFN-I) inducible protein, CD169, as a receptor on DCs which mediates HIV-1 capture and trans-infection. We have also demonstrated extensive co-localization of HIV-1 with CD169 within peripheral non-lysosomal compartments in DCs, although the mechanism and biological importance of the compartment formation remain unclear. Here in this study, we report that a myeloid cell specific co-factor interacts with CD169 following virus capture leading to compartment formation. This co-factor is induced in DCs by an IFN-I-inducing TLR ligand LPS, but not by IFN-I itself. Though the CD169+ HIV-1 containing compartments are surface-accessible, these compartments have considerable depth and are connected to the surface, such that captured virus particles localized within these unique structures are protected from detection by anti-gp120 broadly neutralizing antibodies. Our study suggests that CD169–HIV-1 interaction provides an evasion mechanism from degradation by phagocytosis and neutralization by anti-viral humoral responses.
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Affiliation(s)
- Hisashi Akiyama
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Nora-Guadalupe Pina Ramirez
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, United States of America
| | - Manasa V. Gudheti
- Bruker Nano Surfaces, Salt Lake City, Utah, United States of America
| | - Suryaram Gummuluru
- Department of Microbiology, Boston University School of Medicine, Boston, Massachusetts, United States of America
- * E-mail:
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47
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Kijewski SDG, Gummuluru S. A mechanistic overview of dendritic cell-mediated HIV-1 trans infection: the story so far. Future Virol 2015; 10:257-269. [PMID: 26213560 PMCID: PMC4508676 DOI: 10.2217/fvl.15.2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Despite progress in antiretroviral therapy, HIV-1 rebound after cessation of antiretroviral therapy suggests that establishment of long-term cellular reservoirs of virus is a significant barrier to functional cure. There is considerable evidence that dendritic cells (DCs) play an important role in systemic virus dissemination. Although productive infection of DCs is inefficient, DCs capture HIV-1 and transfer-captured particles to CD4+ T cells, a mechanism of DC-mediated HIV-1 trans infection. Recent findings suggest that DC-mediated trans infection of HIV-1 is dependent on recognition of GM3, a virus-particle-associated host-derived ligand, by CD169 expressed on DCs. In this review, we describe mechanisms of DC-mediated HIV-1 trans infection and discuss specifically the role of CD169 in establishing infection in CD4+ T cells.
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Affiliation(s)
- Suzanne DG Kijewski
- Department of Microbiology, Boston University School of Medicine, Boston, MA 02118, USA
| | - Suryaram Gummuluru
- Department of Microbiology, Boston University School of Medicine, Boston, MA 02118, USA
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48
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Gummuluru S, Pina Ramirez NG, Akiyama H. CD169-dependent cell-associated HIV-1 transmission: a driver of virus dissemination. J Infect Dis 2015; 210 Suppl 3:S641-7. [PMID: 25414418 DOI: 10.1093/infdis/jiu442] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Sexual transmission of human immunodeficiency virus type 1 (HIV-1) occurs across mucosal surfaces of the genital and gastrointestinal tracts and accounts for the vast majority of newly acquired infections worldwide. In the absence of an effective vaccine, interventional strategies such as microbicides that target viral attachment and entry into mucosa-resident target cells are particularly attractive and might have the greatest impact on reducing the HIV-1 pandemic. Rational development of microbicides would be greatly aided with a better understanding of several key questions of mucosal HIV-1 transmission, including the molecular mechanism(s) of how HIV-1 traverses mucosal barriers, the type of cells that it initially infects to gain a foothold in the naive host, and how it is disseminated from local sites of infection to draining lymph nodes. In this review, we discuss the role of myeloid dendritic cells (DCs) in cell-associated HIV-1 transmission and in facilitating systemic HIV-1 dissemination. We will evaluate the role of CD169 as a DC-associated HIV-1 attachment factor, investigate the molecular mechanisms by which HIV-1 particles are transferred from DCs to CD4(+) T cells across virological synapses, and provide arguments for inclusion of molecules in microbicides that can effectively target HIV-1 attachment to DCs and DC-mediated virus transfer.
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Affiliation(s)
- Suryaram Gummuluru
- Department of Microbiology, Boston University School of Medicine, Massachusetts
| | | | - Hisashi Akiyama
- Department of Microbiology, Boston University School of Medicine, Massachusetts
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49
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Yu X, Xu F, Ramirez NGP, Kijewski SDG, Akiyama H, Gummuluru S, Reinhard BM. Dressing up Nanoparticles: A Membrane Wrap to Induce Formation of the Virological Synapse. ACS NANO 2015; 9:4182-92. [PMID: 25853367 PMCID: PMC4423798 DOI: 10.1021/acsnano.5b00415] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Next-generation nanoparticle-based drug delivery systems require the ability to target specific organelles or subcellular regions in selected target cells. Human immunodeficiency virus type I (HIV-1) particles are evolutionarily optimized nanocarriers that have evolved to avoid intracellular degradation and achieve enrichment at the synapse between mature dendritic cells (mDCs) and T cells by subverting cellular trafficking mechanisms. This study demonstrates that integration of the glycosphingolipid, GM3, in a membrane around a solid nanoparticle (NP) core is sufficient to recapitulate key aspects of the virus particle trafficking in mDCs. GM3-presenting artificial virus NPs (GM3-AVNs) accumulate in CD169(+) and CD81(+) nonlysosomal compartments in an actin-dependent process that mimics the sequestration of HIV-1. Live-cell optical tracking studies reveal a preferential recruitment and arrest of surface scanning CD4(+) T cells in direct vicinity to the AVN-enriched compartments. The formed mDC-T cell conjugates exhibit strong morphological similarities between the GM3-AVN-containing mDC-T cell synapse and the HIV-1 virological synapse, indicating that GM3-CD169 interactions alone are sufficient for establishing the mDC-T cell virological synapse. These results emphasize the potential of the GM3-AVN approach for providing therapeutic access to a key step of the host immune response--formation of the synaptic junction between an antigen-presenting cell (mDC) and T cells--for modulating and controlling immune responses.
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Affiliation(s)
- Xinwei Yu
- Department of Chemistry and The Photonics Center, Boston University, Boston, MA 02215, United States
| | - Fangda Xu
- Department of Chemistry and The Photonics Center, Boston University, Boston, MA 02215, United States
| | | | - Suzanne D. G. Kijewski
- Department of Microbiology, Boston University School of Medicine, Boston, MA 02118, United States
| | - Hisashi Akiyama
- Department of Microbiology, Boston University School of Medicine, Boston, MA 02118, United States
| | - Suryaram Gummuluru
- Department of Microbiology, Boston University School of Medicine, Boston, MA 02118, United States
| | - Björn M. Reinhard
- Department of Chemistry and The Photonics Center, Boston University, Boston, MA 02215, United States
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Mazzon M, Mercer J. Lipid interactions during virus entry and infection. Cell Microbiol 2014; 16:1493-502. [PMID: 25131438 PMCID: PMC4265854 DOI: 10.1111/cmi.12340] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 07/26/2014] [Accepted: 08/01/2014] [Indexed: 12/14/2022]
Abstract
For entry and infection viruses have developed numerous strategies to subjugate indispensable cellular factors and functions. Host cell lipids and cellular lipid synthesis machinery are no exception. Not only do viruses exploit existing lipid signalling and modifications for virus entry and trafficking, they also reprogram lipid synthesis, metabolism, and compartmentalization for assembly and egress. Here we review these various concepts and highlight recent progress in understanding viral interactions with host cell lipids during entry and assembly.
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Affiliation(s)
- Michela Mazzon
- MRC-Laboratory for Molecular Cell Biology, University College London, Gower Street, London, WC1E 6BT, UK
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