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1.
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15 p, 2.1 MB |
Proteoliposomal formulations of an HIV-1 gp41-based miniprotein elicit a lipid-dependent immunodominant response overlapping the 2F5 binding motif
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Molinos-Albert, Luis Manuel (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Bilbao, Eneritz (Universidad del País Vasco (UPV/EHU). Department of Biochemistry and Molecular Biology) ;
Agulló, Luis (Universitat de Vic. Departament de Biociències) ;
Marfil, Silvia (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
García, Elisabet (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Rodríguez de la Concepción, Maria Luisa (Institut Germans Trias i Pujol) ;
Izquierdo-Useros, Nuria (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Vilaplana, Cristina (Institut Germans Trias i Pujol. Unitat de Tuberculosi Experimental) ;
Nieto-Garai, Jon A. (Universidad del País Vasco (UPV/EHU). Department of Biochemistry and Molecular Biology) ;
Contreras, F. Xabier (Universidad del País Vasco (UPV/EHU). Department of Biochemistry and Molecular Biology) ;
Floor, Martin (Universitat de Vic. Departament de Biociències) ;
Cardona, Pere J. (Institut Germans Trias i Pujol. Unitat de Tuberculosi Experimental) ;
Martínez Picado, Francisco Javier (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Clotet, Bonaventura (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Villà-Freixa, Jordi (Universitat de Vic. Departament de Biociències) ;
Lorizate, Maier (Universidad del País Vasco (UPV/EHU). Department of Biochemistry and Molecular Biology) ;
Carrillo, Jorge (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Blanco, Julià (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa)
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. [...]
2017 -  10.1038/srep40800
Scientific Reports, gener 2017, p. 1-15
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2.
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15 p, 1.4 MB |
Sialyllactose in Viral Membrane Gangliosides Is a Novel Molecular Recognition Pattern for Mature Dendritic Cell Capture of HIV-1
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Izquierdo Useros, Nuria (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Lorizate, Maier (Department of Infectious Diseases, Virology, Universitätsklinikum Heidelberg, Heidelberg, Germany) ;
Contreras, F. Xabier (Heidelberg University Biochemistry Center (BZH), Heidelberg) ;
Rodríguez Plata, María T. (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Glass, Bärbel (Department of Infectious Diseases, Virology, Universitätsklinikum Heidelberg, Heidelberg, Germany) ;
Erkizia, Itziar (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Prado, Julia G. (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Casas, Josefina (Department of Biomedicinal Chemistry, Institute of Advanced Chemistry of Catalonia (IQAC)/CSIC, Barcelona, Spain) ;
Fabriàs, Gemma (Department of Biomedicinal Chemistry, Institute of Advanced Chemistry of Catalonia (IQAC)/CSIC, Barcelona, Spain) ;
Kräusslich, Hans Georg (Department of Infectious Diseases, Virology, Universitätsklinikum Heidelberg, Heidelberg, Germany) ;
Martínez Picado, Francisco Javier (Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain)
An accessible sialyllactose moiety on viral membrane gangliosides is shown to be essential for HIV-1 uptake into mature dendritic cells, thereby promoting viral transfer and infection of bystander CD4+ T lymphocytes. [...]
2012 - 10.1371/journal.pbio.1001315
PLoS biology, Vol. 10 (april 2012)
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3.
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7 p, 617.5 KB |
Identification of Siglec-1 null individuals infected with HIV-1
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Martínez Picado, Francisco Javier (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
McLaren, Paul J. (National HIV and Retrovirology Laboratory (Winnipeg, Canadà)) ;
Erkizia, Itziar (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Martin, Maureen P. (Frederick National Laboratory for Cancer Research (Maryland, Estats Units d'Amèrica)) ;
Benet, Susana (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Rotger, Margalida (University of Lausanne (Suïssa)) ;
Dalmau, Judith (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Ouchi, Dan (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Wolinsky, Steven M. (Northwestern University Feinberg School of Medicine (Chicago, Estats Units d'Amèrica)) ;
Penugonda, Sudhir (Northwestern University Feinberg School of Medicine (Chicago, Estats Units d'Amèrica)) ;
Günthard, Huldrych F. (University Hospital Zurich (Suïssa)) ;
Fellay, Jacques (École Polytechnique Fédérale de Lausanne (Suïssa)) ;
Carrington, Mary (Frederick National Laboratory for Cancer Research (Maryland, Estats Units d'Amèrica)) ;
Izquierdo Useros, Nuria (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Telenti, Amalio (J. Craig Venter Institute (La Jolla, Estats Units d'Amèrica))
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. [...]
2016 - 10.1038/ncomms12412
Nature communications, Vol. 7 Núm. 12412 (August 2016)
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4.
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15 p, 3.1 MB |
HIV-1 immune activation induces Siglec-1 expression and enhances viral trans-infection in blood and tissue myeloid cells
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Pino, Maria (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Erkizia, Itziar (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Benet, Susana (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Erikson, Elina (University of Frankfurt (Alemanya)) ;
Fernández Figueras, Maria Teresa (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol) ;
Guerrero, Dolores (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol) ;
Dalmau, Judith (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Ouchi, Dan (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Rausell, Antonio (University of Lausanne (Suïssa)) ;
Ciuffi, Angela (University of Lausanne (Suïssa)) ;
Keppler, Oliver T. (University of Frankfurt (Alemanya)) ;
Telenti, Amalio (University of Lausanne (Suïssa)) ;
Kräusslich, Hans-Georg (University of Heidelberg (Alemanya)) ;
Martínez Picado, Francisco Javier (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Izquierdo Useros, Nuria (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Universitat Autònoma de Barcelona
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. [...]
2015 - 10.1186/s12977-015-0160-x
Retrovirology, Vol 12, article 37 (May 2015)
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5.
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13 p, 426.6 KB |
HIV transfer between CD4 T cells does not require LFA-1 binding to ICAM-1 and is governed by the interaction of HIV envelope glycoprotein with CD4
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Puigdomènech Iñiguez, Isabel (Hospital Germans Trias i Pujol) ;
Massanella Luna, Marta, 1983- (Hospital Germans Trias i Pujol) ;
Izquierdo Useros, Nuria (Hospital Germans Trias i Pujol) ;
Ruiz Hernández, Raúl (Hospital Germans Trias i Pujol) ;
Curriu Martí, Marta (Hospital Germans Trias i Pujol) ;
Bofill Soliguer, Margarita (Hospital Germans Trias i Pujol) ;
Martínez Picado, Francisco Javier (Hospital Germans Trias i Pujol) ;
Juan, Manuel (Hospital Germans Trias i Pujol) ;
Clotet i Sala, Bonaventura (Hospital Germans Trias i Pujol) ;
Blanco Arbués, Julià (Hospital Germans Trias i Pujol)
Background: Cell-to-cell HIV transmission requires cellular contacts that may be in part mediated by the integrin leukocyte function antigen (LFA)-1 and its ligands intercellular adhesion molecule (ICAM)-1, -2 and -3. [...]
2008 - 10.1186/1742-4690-5-32
Retrovirology, Vol. 5, Núm. 32 (March 2008), p. 1-13
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6.
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9 p, 5.6 MB |
HIV and mature dendritic cells : Trojan exosomes riding the Trojan horse?
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Izquierdo Useros, Nuria (IrsiCaixa Foundation) ;
Naranjo Gómez, María del Mar (Fundació Institut per a la Investigació en Ciències de la Salut Germans Trias i Pujol) ;
Erkizia, Itziar (IrsiCaixa Foundation) ;
Puertas, María Carmen (IrsiCaixa Foundation) ;
Borràs Serres, Francesc Enric (Fundació Institut per a la Investigació en Ciències de la Salut Germans Trias i Pujol) ;
Blanco, Julià (IrsiCaixa Foundation) ;
Martínez Picado, Francisco Javier (Institució Catalana de Recerca i Estudis Avançats)
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. [...]
2010
PLoS Pathogens, Vol. 6, Issue 3 (March 2010) , p. e1000740
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