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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, 4.1 MB |
Lack of concordance between residual viremia and viral variants driving de novo infection of CD4 + T cells on ART
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Puertas, Maria C. (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Noguera-Julian, Marc (Universitat de Vic - Universitat Central de Catalunya (UVic-UCC), Vic, Spain) ;
Massanella, Marta (Département de Microbiologie, Infectiologie et Immunologie, Centre de Recherche du CHUM et Université de Montréal) ;
Pou, Christian (Department of Cell and Molecular Biology, Karolinska Institutet, Solna, Stockholm Sweden) ;
Buzón, María José (Hospital Universitari Vall d'Hebron. Institut de Recerca) ;
Clotet, Bonaventura (Universitat de Vic - Universitat Central de Catalunya (UVic-UCC), Vic, Spain) ;
Stevenson, Mario (Division of Infectious Diseases, Department of Medicine, University of Miami Miller School of Medicine, Miami, USA) ;
Paredes, Roger (Universitat de Vic - Universitat Central de Catalunya (UVic-UCC), Vic, Spain) ;
Blanco, Julià (Universitat de Vic - Universitat Central de Catalunya (UVic-UCC), Vic, Spain) ;
Martínez Picado, Francisco Javier (Institució Catalana de Recerca i Estudis Avançats (ICREA))
In most patients, current antiretroviral therapy (ART) regimens can rapidly reduce plasma viral load. However, even after years of effective treatment, a significant proportion of patients show residual plasma viremia below the clinical detection limit. [...]
2016 - 10.1186/s12977-016-0282-9
Retrovirology, Vol. 13 (august 2016)
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3.
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11 p, 635.6 KB |
P-glycoprotein (ABCB1) activity decreases raltegravir disposition in primary CD4+P-gp high cells and correlates with HIV-1 viral load
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Minuesa Dinarés, Gerard (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Arimany-Nardi, Cristina (National Biomedical Research Institute on Liver and Gastrointestinal Diseases (CIBER EHD), Instituto de Salud Carlos III) ;
Erkizia, Itziar (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Cedeño, Samandhy (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ;
Moltó Marhuenda, José (Institut Germans Trias i Pujol. Fundació de Lluita contra la Sida) ;
Clotet, Bonaventura (Institució Catalana de Recerca i Estudis Avançats (ICREA)) ;
Pastor-Anglada, Marçal (National Biomedical Research Institute on Liver and Gastrointestinal Diseases (CIBER EHD), Instituto de Salud Carlos III) ;
Martínez Picado, Francisco Javier (Universitat de Vic, Universitat Central de Catalunya (UVic-UCC))
To evaluate the role of P-glycoprotein (P-gp) and multidrug-resistant-protein 1 (MRP1) on raltegravir intracellular drug disposition in CD4+ T cells, investigate the effect of HIV-1 infection on P-gp expression and correlate HIV-1 viraemia with P-gp activity in primary CD4+ T cell subsets. [...]
2016 - 10.1093/jac/dkw215
Journal of Antimicrobial Chemotherapy, Vol. 71 (june 2016) , p. 2782-2792
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4.
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11 p, 679.0 KB |
Does rapid HIV disease progression prior to combination antiretroviral therapy hinder optimal CD4 + T-cell recovery once HIV-1 suppression is achieved?
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Jarrin, Inma (Instituto de Salud Carlos III, Madrid, Spain) ;
Pantazis, Nikos (Athens University Medical School, Athens, Greece) ;
Dalmau, Judith (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol) ;
Phillips, Andrew N. (Research Department of Infection and Population Health) ;
Olson, Ashley (Medical Research Council Clinical Trials Unit, University College London, London, UK) ;
Mussini, Cristina (Institute of Infectious Diseases, University of Modena and Reggio Emilia, Modena, Italy) ;
Boufassa, Faroudy (Univ Paris-Sud, Le Kremlim Bicetre) ;
Costagliola, Dominique (INSERM, Paris, France) ;
Porter, Kholoud (Medical Research Council Clinical Trials Unit, University College London, London, UK) ;
Blanco, Juliá (Universitat de Vic-Central de Catalunya, UVIC-UCC, Vic) ;
Del Amo, Julia (Instituto de Salud Carlos III, Madrid, Spain) ;
Martínez Picado, Francisco Javier (Institut Germans Trias i Pujol. Hospital Universitari Germans Trias i Pujol)
This article compares trends in CD4 + T-cell recovery and proportions achieving optimal restoration (≥500 cells/μl) after viral suppression following combination antiretroviral therapy (cART) initiation between rapid and nonrapid progressors. [...]
2015 - 10.1097/QAD.0000000000000805
AIDS (London, England), Vol. 29 (october 2015) , p. 2323-2333
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5.
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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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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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7.
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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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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) ;
Universitat Autònoma de Barcelona. Departament de Medicina
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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17 p, 1.3 MB |
Clinical, virological and biochemical evidence supporting the association of HIV-1 reverse transcriptase polymorphism R284K and thymidine analogue resistance mutations M41L, L210W and T215Y in patients failing tenofovir/emtricitabine therapy
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Betancor, Gilberto (Centro de Biología Molecular "Severo Ochoa") ;
Garriga, César (Instituto de Salud Carlos III. Centro Nacional de Epidemiología) ;
Puertas, Maria C. (Hospital Universitari Germans Trias i Pujol. Fundació irsiCaixa) ;
Nevot, Maria (Hospital Universitari Germans Trias i Pujol. Fundació irsiCaixa) ;
Anta, Lourdes (Hospital Carlos III (Madrid)) ;
Blanco, José L. (Hospital Clínic i Provincial de Barcelona) ;
Pérez Elías, M. Jesús (Hospital Ramón y Cajal (Madrid)) ;
Mendoza, Carmen de (Hospital Carlos III (Madrid)) ;
Martínez, Miguel A. (Hospital Universitari Germans Trias i Pujol. Fundació irsiCaixa) ;
Martínez Picado, Francisco Javier (Hospital Universitari Germans Trias i Pujol. Fundació irsiCaixa) ;
Menéndez-Arias, Luis (Centro de Biología Molecular "Severo Ochoa") ;
Spanish AIDS Research Network (ResRIS)
Background: Thymidine analogue resistance mutations (TAMs) selected under treatment with nucleoside analogues generate two distinct genotypic profiles in the HIV-1 reverse transcriptase (RT): (i) TAM1: M41L, L210W and T215Y, and (ii) TAM2: D67N, K70R and K219E/Q, and sometimes T215F. [...]
2012 - 10.1186/1742-4690-9-68
Retrovirology, Vol. 9, N. 68 (13 August 2012) , p. 1-17
2 documentos
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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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