HIV and mature dendritic cells: Trojan exosomes riding the Trojan horse?

Exosomes are secreted cellular vesicles that can induce specific CD4(+) T cell responses in vivo when they interact with competent antigen-presenting cells like mature dendritic cells (mDCs). The Trojan exosome hypothesis proposes that retroviruses can take advantage of the cell-encoded intercellula...

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Autores principales: Nuria Izquierdo-Useros, Mar Naranjo-Gómez, Itziar Erkizia, Maria Carmen Puertas, Francesc E Borràs, Julià Blanco, Javier Martinez-Picado
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Publicado: Public Library of Science (PLoS) 2010
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Acceso en línea:https://doaj.org/article/44b7853429764e1390f264bef1ff14e5
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spelling oai:doaj.org-article:44b7853429764e1390f264bef1ff14e52021-11-25T05:48:13ZHIV and mature dendritic cells: Trojan exosomes riding the Trojan horse?1553-73661553-737410.1371/journal.ppat.1000740https://doaj.org/article/44b7853429764e1390f264bef1ff14e52010-03-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/20360840/pdf/?tool=EBIhttps://doaj.org/toc/1553-7366https://doaj.org/toc/1553-7374Exosomes are secreted cellular vesicles that can induce specific CD4(+) T cell responses in vivo when they interact with competent antigen-presenting cells like mature dendritic cells (mDCs). The Trojan exosome hypothesis proposes that retroviruses can take advantage of the cell-encoded intercellular vesicle traffic and exosome exchange pathway, moving between cells in the absence of fusion events in search of adequate target cells. Here, we discuss recent data supporting this hypothesis, which further explains how DCs can capture and internalize retroviruses like HIV-1 in the absence of fusion events, leading to the productive infection of interacting CD4(+) T cells and contributing to viral spread through a mechanism known as trans-infection. We suggest that HIV-1 can exploit an exosome antigen-dissemination pathway intrinsic to mDCs, allowing viral internalization and final trans-infection of CD4(+) T cells. In contrast to previous reports that focus on the ability of immature DCs to capture HIV in the mucosa, this review emphasizes the outstanding role that mature DCs could have promoting trans-infection in the lymph node, underscoring a new potential viral dissemination pathway.Nuria Izquierdo-UserosMar Naranjo-GómezItziar ErkiziaMaria Carmen PuertasFrancesc E BorràsJulià BlancoJavier Martinez-PicadoPublic Library of Science (PLoS)articleImmunologic diseases. AllergyRC581-607Biology (General)QH301-705.5ENPLoS Pathogens, Vol 6, Iss 3, p e1000740 (2010)
institution DOAJ
collection DOAJ
language EN
topic Immunologic diseases. Allergy
RC581-607
Biology (General)
QH301-705.5
spellingShingle Immunologic diseases. Allergy
RC581-607
Biology (General)
QH301-705.5
Nuria Izquierdo-Useros
Mar Naranjo-Gómez
Itziar Erkizia
Maria Carmen Puertas
Francesc E Borràs
Julià Blanco
Javier Martinez-Picado
HIV and mature dendritic cells: Trojan exosomes riding the Trojan horse?
description Exosomes are secreted cellular vesicles that can induce specific CD4(+) T cell responses in vivo when they interact with competent antigen-presenting cells like mature dendritic cells (mDCs). The Trojan exosome hypothesis proposes that retroviruses can take advantage of the cell-encoded intercellular vesicle traffic and exosome exchange pathway, moving between cells in the absence of fusion events in search of adequate target cells. Here, we discuss recent data supporting this hypothesis, which further explains how DCs can capture and internalize retroviruses like HIV-1 in the absence of fusion events, leading to the productive infection of interacting CD4(+) T cells and contributing to viral spread through a mechanism known as trans-infection. We suggest that HIV-1 can exploit an exosome antigen-dissemination pathway intrinsic to mDCs, allowing viral internalization and final trans-infection of CD4(+) T cells. In contrast to previous reports that focus on the ability of immature DCs to capture HIV in the mucosa, this review emphasizes the outstanding role that mature DCs could have promoting trans-infection in the lymph node, underscoring a new potential viral dissemination pathway.
format article
author Nuria Izquierdo-Useros
Mar Naranjo-Gómez
Itziar Erkizia
Maria Carmen Puertas
Francesc E Borràs
Julià Blanco
Javier Martinez-Picado
author_facet Nuria Izquierdo-Useros
Mar Naranjo-Gómez
Itziar Erkizia
Maria Carmen Puertas
Francesc E Borràs
Julià Blanco
Javier Martinez-Picado
author_sort Nuria Izquierdo-Useros
title HIV and mature dendritic cells: Trojan exosomes riding the Trojan horse?
title_short HIV and mature dendritic cells: Trojan exosomes riding the Trojan horse?
title_full HIV and mature dendritic cells: Trojan exosomes riding the Trojan horse?
title_fullStr HIV and mature dendritic cells: Trojan exosomes riding the Trojan horse?
title_full_unstemmed HIV and mature dendritic cells: Trojan exosomes riding the Trojan horse?
title_sort hiv and mature dendritic cells: trojan exosomes riding the trojan horse?
publisher Public Library of Science (PLoS)
publishDate 2010
url https://doaj.org/article/44b7853429764e1390f264bef1ff14e5
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