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Rizkallah G, Alais S, Futsch N, Tanaka Y, Journo C, Mahieux R, Dutartre H. Dendritic cell maturation, but not type I interferon exposure, restricts infection by HTLV-1, and viral transmission to T-cells. PLoS Pathog 2017; 13:e1006353. [PMID: 28426803 PMCID: PMC5413061 DOI: 10.1371/journal.ppat.1006353] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 05/02/2017] [Accepted: 04/13/2017] [Indexed: 12/21/2022] Open
Abstract
Human T lymphotropic Virus type 1 (HTLV-1) is the etiological agent of Adult T cell Leukemia/Lymphoma (ATLL) and HTLV-1-Associated Myelopathy/Tropical Spastic Paraparesis (HAM/TSP). Both CD4+ T-cells and dendritic cells (DCs) infected with HTLV-1 are found in peripheral blood from HTLV-1 carriers. We previously demonstrated that monocyte-derived IL-4 DCs are more susceptible to HTLV-1 infection than autologous primary T-cells, suggesting that DC infection precedes T-cell infection. However, during blood transmission, breast-feeding or sexual transmission, HTLV-1 may encounter different DC subsets present in the blood, the intestinal or genital mucosa respectively. These different contacts may impact HTLV-1 ability to infect DCs and its subsequent transfer to T-cells. Using in vitro monocyte-derived IL-4 DCs, TGF-β DCs and IFN-α DCs that mimic DCs contacting HTLV-1 in vivo, we show here that despite their increased ability to capture HTLV-1 virions, IFN-α DCs restrict HTLV-1 productive infection. Surprisingly, we then demonstrate that it is not due to the antiviral activity of type-I interferon produced by IFN-α DCs, but that it is likely to be linked to a distinct trafficking route of HTLV-1 in IL-4 DCs vs. IFN-α DCs. Finally, we demonstrate that, in contrast to IL-4 DCs, IFN-α DCs are impaired in their capacity to transfer HTLV-1 to CD4 T-cells, both after viral capture and trans-infection and after their productive infection. In conclusion, the nature of the DCs encountered by HTLV-1 upon primo-infection and the viral trafficking route through the vesicular pathway of these cells determine the efficiency of viral transmission to T-cells, which may condition the fate of infection.
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Affiliation(s)
- Gergès Rizkallah
- International Center for Research in Infectiology, Retroviral Oncogenesis laboratory, INSERM U1111 –Université Claude Bernard Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Université Lyon, Lyon, France
- Equipe labellisée “Ligue Nationale Contre le Cancer”, Lyon, France
| | - Sandrine Alais
- International Center for Research in Infectiology, Retroviral Oncogenesis laboratory, INSERM U1111 –Université Claude Bernard Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Université Lyon, Lyon, France
- Equipe labellisée “Ligue Nationale Contre le Cancer”, Lyon, France
| | - Nicolas Futsch
- International Center for Research in Infectiology, Retroviral Oncogenesis laboratory, INSERM U1111 –Université Claude Bernard Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Université Lyon, Lyon, France
- Equipe labellisée “Ligue Nationale Contre le Cancer”, Lyon, France
| | - Yuetsu Tanaka
- Department of Immunology, Graduate School of Medicine, University of the Ryukyus, Uehara 207, Nishihara-cho, Okinawa, Japan
| | - Chloé Journo
- International Center for Research in Infectiology, Retroviral Oncogenesis laboratory, INSERM U1111 –Université Claude Bernard Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Université Lyon, Lyon, France
- Equipe labellisée “Ligue Nationale Contre le Cancer”, Lyon, France
| | - Renaud Mahieux
- International Center for Research in Infectiology, Retroviral Oncogenesis laboratory, INSERM U1111 –Université Claude Bernard Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Université Lyon, Lyon, France
- Equipe labellisée “Ligue Nationale Contre le Cancer”, Lyon, France
| | - Hélène Dutartre
- International Center for Research in Infectiology, Retroviral Oncogenesis laboratory, INSERM U1111 –Université Claude Bernard Lyon 1, CNRS, UMR5308, Ecole Normale Supérieure de Lyon, Université Lyon, Lyon, France
- Equipe labellisée “Ligue Nationale Contre le Cancer”, Lyon, France
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Ma J, Zhang X, Feng Y, Zhang H, Wang X, Zheng Y, Qiao W, Liu X. Structural and Functional Study of Apoptosis-linked Gene-2·Heme-binding Protein 2 Interactions in HIV-1 Production. J Biol Chem 2016; 291:26670-26685. [PMID: 27784779 DOI: 10.1074/jbc.m116.752444] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 10/01/2016] [Indexed: 01/10/2023] Open
Abstract
In the HIV-1 replication cycle, the endosomal sorting complex required for transport (ESCRT) machinery promotes viral budding and release in the late stages. In this process, the ESCRT proteins, ALIX and TSG101, are recruited through interactions with HIV-1 Gag p6. ALG-2, also known as PDCD6, interacts with both ALIX and TSG101 and bridges ESCRT-III and ESCRT-I. In this study, we show that ALG-2 affects HIV-1 production negatively at both the exogenous and endogenous levels. Through a yeast two-hybrid screen, we identified HEBP2 as the binding partner of ALG-2, and we solved the crystal structure of the ALG-2·HEBP2 complex. The function of ALG-2·HEBP2 complex in HIV-1 replication was further explored. ALG-2 inhibits HIV-1 production by affecting Gag expression and distribution, and HEBP2 might aid this process by tethering ALG-2 in the cytoplasm.
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Affiliation(s)
- Jing Ma
- From the State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071.,the Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Xianfeng Zhang
- the CAAS-Michigan State University Joint Laboratory of Innate Immunity, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, and
| | - Yanbin Feng
- From the State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071
| | - Hui Zhang
- From the State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071
| | - Xiaojun Wang
- the CAAS-Michigan State University Joint Laboratory of Innate Immunity, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, and
| | - Yonghui Zheng
- the CAAS-Michigan State University Joint Laboratory of Innate Immunity, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, and
| | - Wentao Qiao
- From the State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071, .,the Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Xinqi Liu
- From the State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin 300071,
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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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Maldonado JO, Martin JL, Mueller JD, Zhang W, Mansky LM. New insights into retroviral Gag-Gag and Gag-membrane interactions. Front Microbiol 2014; 5:302. [PMID: 25009535 PMCID: PMC4068372 DOI: 10.3389/fmicb.2014.00302] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Accepted: 06/02/2014] [Indexed: 11/19/2022] Open
Abstract
A critical aspect of viral replication is the assembly of virus particles, which are subsequently released as progeny virus. While a great deal of attention has been focused on better understanding this phase of the viral life cycle, many aspects of the molecular details remain poorly understood. This is certainly true for retroviruses, including that of the human immunodeficiency virus type 1 (HIV-1; a lentivirus) as well as for human T-cell leukemia virus type 1 (HTLV-1; a deltaretrovirus). This review discusses the retroviral Gag protein and its interactions with itself, the plasma membrane and the role of lipids in targeting Gag to virus assembly sites. Recent progress using sophisticated biophysical approaches to investigate – in a comparative manner – retroviral Gag–Gag and Gag–membrane interactions are discussed. Differences among retroviruses in Gag–Gag and Gag–membrane interactions imply dissimilar molecular aspects of the viral assembly pathway, including the interactions of Gag with lipids at the membrane.
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Affiliation(s)
- José O Maldonado
- 1Institute for Molecular Virology, University of Minnesota Minneapolis, MN, USA ; 2Department of Diagnostic and Biological Sciences, School of Dentistry, University of Minnesota , Minneapolis, MN, USA
| | - Jessica L Martin
- 1Institute for Molecular Virology, University of Minnesota Minneapolis, MN, USA ; 3Pharmacology Graduate Program, University of Minnesota Minneapolis, MN, USA
| | - Joachim D Mueller
- 1Institute for Molecular Virology, University of Minnesota Minneapolis, MN, USA ; 4School of Physics and Astronomy, University of Minnesota Minneapolis, MN, USA
| | - Wei Zhang
- 1Institute for Molecular Virology, University of Minnesota Minneapolis, MN, USA ; 2Department of Diagnostic and Biological Sciences, School of Dentistry, University of Minnesota , Minneapolis, MN, USA ; 5Characterization Facility, University of Minnesota Minneapolis, MN, USA
| | - Louis M Mansky
- 1Institute for Molecular Virology, University of Minnesota Minneapolis, MN, USA ; 2Department of Diagnostic and Biological Sciences, School of Dentistry, University of Minnesota , Minneapolis, MN, USA ; 3Pharmacology Graduate Program, University of Minnesota Minneapolis, MN, USA ; 6Department of Microbiology, University of Minnesota Minneapolis, MN, USA
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