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Affiliation(s)
- Fernando Real
- Laboratoire Entrée Muqueuse du VIH et Immunité Muqueuse, Département Infection Immunité et Inflammation, Institut Cochin, Université Paris Descartes, Sorbonne Paris Cité, 22, rue Méchain, 75014 Paris, France - CNRS UMR8104, 75014 Paris, France - Inserm U1016, Institut Cochin, 22, rue Méchain, 75014 Paris, France
| | - Morgane Bomsel
- Laboratoire Entrée Muqueuse du VIH et Immunité Muqueuse, Département Infection Immunité et Inflammation, Institut Cochin, Université Paris Descartes, Sorbonne Paris Cité, 22, rue Méchain, 75014 Paris, France - CNRS UMR8104, 75014 Paris, France - Inserm U1016, Institut Cochin, 22, rue Méchain, 75014 Paris, France
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Teruel É, Rizkallah G, Journo C, Dutartre H. [The actin cytoskeleton goes retroviral]. Med Sci (Paris) 2017; 33:839-842. [PMID: 28994374 DOI: 10.1051/medsci/20173310009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Élodie Teruel
- Centre international de recherche en infectiologie, équipe oncogenèse rétrovirale, Inserm U1111 - université Claude Bernard Lyon 1, CNRS, UMR5308, École normale supérieure de Lyon, université de Lyon, 46, allée d'Italie, F-69007, Lyon, France ; équipe labellisée « Ligue nationale contre le cancer »
| | - Gerges Rizkallah
- Centre international de recherche en infectiologie, équipe oncogenèse rétrovirale, Inserm U1111 - université Claude Bernard Lyon 1, CNRS, UMR5308, École normale supérieure de Lyon, université de Lyon, 46, allée d'Italie, F-69007, Lyon, France ; équipe labellisée « Ligue nationale contre le cancer »
| | - Chloé Journo
- Centre international de recherche en infectiologie, équipe oncogenèse rétrovirale, Inserm U1111 - université Claude Bernard Lyon 1, CNRS, UMR5308, École normale supérieure de Lyon, université de Lyon, 46, allée d'Italie, F-69007, Lyon, France ; équipe labellisée « Ligue nationale contre le cancer »
| | - Hélène Dutartre
- Centre international de recherche en infectiologie, équipe oncogenèse rétrovirale, Inserm U1111 - université Claude Bernard Lyon 1, CNRS, UMR5308, École normale supérieure de Lyon, université de Lyon, 46, allée d'Italie, F-69007, Lyon, France ; équipe labellisée « Ligue nationale contre le cancer »
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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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Schwob A, Mahieux R, Journo C. Les chaînes libres d’ubiquitine. Med Sci (Paris) 2016; 32:329-32. [DOI: 10.1051/medsci/20163204006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Couronné L, Bastard C, Gaulard P, Hermine O, Bernard O. [Molecular pathogenesis of peripheral T-cell lymphoma (1): angioimmunoblastic T-cell lymphoma, peripheral T-cell lymphoma, not otherwise specified and anaplastic large cell lymphoma]. Med Sci (Paris) 2015; 31:841-52. [PMID: 26481023 DOI: 10.1051/medsci/20153110010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Peripheral T-cell lymphomas (PTCL) belong to the group of non-Hodgkin lymphoma and particularly that of mature T/NK cells lymphoproliferative neoplasms. The 2008 WHO classification describes different PTCL entities with varying prevalence. With the exception of the histological subtype "ALK positive anaplastic large cell lymphoma", PTCL are characterized by a poor prognosis. The mechanisms underlying the pathogenesis of these lymphomas are not yet fully understood, but development of genomic high-throughput analysis techniques now allows to extensively identify the molecular abnormalities present in tumor cells. This review aims to summarize the current knowledge and recent advances about the molecular events occurring at the origin or during the natural history of main entities of PTCL. It will be published in two parts : the first is focused on the three more frequent entities, angioimmunoblastic T-cell lymphoma, peripheral T-cell lymphoma, not otherwise specified, and anaplastic large cell lymphoma. The second (which will appear in the november issue) will describe other subtypes less frequent and of poor prognosis : extranodal NK/T-cell lymphoma, nasal type, adult T-cell leukemia/lymphoma, and enteropathy-associated T-cell lymphoma. T or NK cell lymphoproliferative disorders with leukemic presentation, primary cutaneous T-cell lymphoma and very rare subtypes of PTCL whose prevalence is less than 5% (hepatosplenic T-cell lymphoma and subcutaneous panniculitis-like T cell lymphoma) will not be discussed herein.
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Affiliation(s)
- Lucile Couronné
- Service d'hématologie adultes, Assistance publique-hôpitaux de Paris (APHP), hôpital Necker, Paris, France - Inserm UMR1163, CNRS ERL 8254, Institut Imagine, Paris, France - Université Paris Descartes-Sorbonne Paris Cité, Paris, France
| | - Christian Bastard
- Service d'anatomo-pathologie, AP-HP, groupe hospitalier Henri Mondor-Albert Chenevier, Créteil, France; Université Paris-Est, faculté de médecine, Créteil, France ; Inserm U955, institut Mondor de recherche biomédicale, Créteil, France
| | - Philippe Gaulard
- Inserm, U918 ; Université de Rouen ; centre Henri Becquerel, Rouen, France
| | - Olivier Hermine
- Service d'hématologie adultes, Assistance publique-hôpitaux de Paris (APHP), hôpital Necker, Paris, France - Inserm UMR1163, CNRS ERL 8254, Institut Imagine, Paris, France - Université Paris Descartes-Sorbonne Paris Cité, Paris, France
| | - Olivier Bernard
- UMR 1170 ; Institut Gustave Roussy, 94805 Villejuif, France ; Université Paris Sud 11, Orsay, France
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