Viral replication is enhanced by an HIV-1 intersubtype recombination-derived Vpu protein

Autores
de Candia, Cristian Ariel; Espada, Constanza Eleonora; Duette, Gabriel; Ghiglione, Yanina Alexandra; Turk, Gabriela Julia Ana; Salomon, Horacio Eduardo; Carobene, Mauricio
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Background: Multiple HIV-1 intersubtype recombinants have been identified in human populations. Previous studies from our lab group have shown that the epidemic in Argentina is characterized by the high prevalence of a circulating recombinant form, CRF12_BF, and many related BF recombinant forms. In these genomic structures a recombination breakpoint frequently involved the vpu coding region. Due to the scarce knowledge of Vpu participation in the virion release process and its impact on pathogenesis and of the functional capacities of intersubtype recombinant Vpu proteins, the aim of this work was to perform a comparative analysis on virion release capacity and relative replication capacity among viral variants harboring either a BF recombinant Vpu or a subtype B Vpu. Results: Our results showed that BF recombinant Vpu was associated to an increased viral particles production when compared to WT B variant in tetherin-expressing cell lines. This observation was tested in the context of a competition assay between the above mentioned variants. The results showed that the replication of the BF Vpu-harboring variant was more efficient in cell cultures than subtype B, reaching a higher frequency in the viral population in a short period of time. Conclusion: This study showed that as a result of intersubtype recombination, a structurally re-organized HIV-1 Vpu has an improved in vitro capacity of enhancing viral replication, and provides evidence of the changes occurring in this protein function that could play an important role in the successful spread of intersubtype recombinant variants.
Fil: de Candia, Cristian Ariel. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Centro Nacional de Referencia Para El Sida; Argentina
Fil: Espada, Constanza Eleonora. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Centro Nacional de Referencia Para El Sida; Argentina
Fil: Duette, Gabriel. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Centro Nacional de Referencia para el Sida; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ghiglione, Yanina Alexandra. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Centro Nacional de Referencia para el Sida; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Turk, Gabriela Julia Ana. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Centro Nacional de Referencia para el Sida; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Salomon, Horacio Eduardo. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Centro Nacional de Referencia para el Sida; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Carobene, Mauricio. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Centro Nacional de Referencia para el Sida; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
HIV-1
VPU
RECOMBINANT PROTEIN
VIRAL REPLICATION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/15793
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/15793
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Viral replication is enhanced by an HIV-1 intersubtype recombination-derived Vpu proteinde Candia, Cristian ArielEspada, Constanza EleonoraDuette, GabrielGhiglione, Yanina AlexandraTurk, Gabriela Julia AnaSalomon, Horacio EduardoCarobene, MauricioHIV-1VPURECOMBINANT PROTEINVIRAL REPLICATIONhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Background: Multiple HIV-1 intersubtype recombinants have been identified in human populations. Previous studies from our lab group have shown that the epidemic in Argentina is characterized by the high prevalence of a circulating recombinant form, CRF12_BF, and many related BF recombinant forms. In these genomic structures a recombination breakpoint frequently involved the vpu coding region. Due to the scarce knowledge of Vpu participation in the virion release process and its impact on pathogenesis and of the functional capacities of intersubtype recombinant Vpu proteins, the aim of this work was to perform a comparative analysis on virion release capacity and relative replication capacity among viral variants harboring either a BF recombinant Vpu or a subtype B Vpu. Results: Our results showed that BF recombinant Vpu was associated to an increased viral particles production when compared to WT B variant in tetherin-expressing cell lines. This observation was tested in the context of a competition assay between the above mentioned variants. The results showed that the replication of the BF Vpu-harboring variant was more efficient in cell cultures than subtype B, reaching a higher frequency in the viral population in a short period of time. Conclusion: This study showed that as a result of intersubtype recombination, a structurally re-organized HIV-1 Vpu has an improved in vitro capacity of enhancing viral replication, and provides evidence of the changes occurring in this protein function that could play an important role in the successful spread of intersubtype recombinant variants.Fil: de Candia, Cristian Ariel. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Centro Nacional de Referencia Para El Sida; ArgentinaFil: Espada, Constanza Eleonora. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Centro Nacional de Referencia Para El Sida; ArgentinaFil: Duette, Gabriel. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Centro Nacional de Referencia para el Sida; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Ghiglione, Yanina Alexandra. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Centro Nacional de Referencia para el Sida; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Turk, Gabriela Julia Ana. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Centro Nacional de Referencia para el Sida; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Salomon, Horacio Eduardo. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Centro Nacional de Referencia para el Sida; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Carobene, Mauricio. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Centro Nacional de Referencia para el Sida; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaBioMed Central2010-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/15793de Candia, Cristian Ariel; Espada, Constanza Eleonora; Duette, Gabriel; Ghiglione, Yanina Alexandra; Turk, Gabriela Julia Ana; et al.; Viral replication is enhanced by an HIV-1 intersubtype recombination-derived Vpu protein; BioMed Central; Virology Journal; 7; 259; 10-2010; 1-91743-422Xenginfo:eu-repo/semantics/altIdentifier/url/https://virologyj.biomedcentral.com/articles/10.1186/1743-422X-7-259info:eu-repo/semantics/altIdentifier/doi/10.1186/1743-422X-7-259info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:06:04Zoai:ri.conicet.gov.ar:11336/15793instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:06:05.039CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Viral replication is enhanced by an HIV-1 intersubtype recombination-derived Vpu protein
title Viral replication is enhanced by an HIV-1 intersubtype recombination-derived Vpu protein
spellingShingle Viral replication is enhanced by an HIV-1 intersubtype recombination-derived Vpu protein
de Candia, Cristian Ariel
HIV-1
VPU
RECOMBINANT PROTEIN
VIRAL REPLICATION
title_short Viral replication is enhanced by an HIV-1 intersubtype recombination-derived Vpu protein
title_full Viral replication is enhanced by an HIV-1 intersubtype recombination-derived Vpu protein
title_fullStr Viral replication is enhanced by an HIV-1 intersubtype recombination-derived Vpu protein
title_full_unstemmed Viral replication is enhanced by an HIV-1 intersubtype recombination-derived Vpu protein
title_sort Viral replication is enhanced by an HIV-1 intersubtype recombination-derived Vpu protein
dc.creator.none.fl_str_mv de Candia, Cristian Ariel
Espada, Constanza Eleonora
Duette, Gabriel
Ghiglione, Yanina Alexandra
Turk, Gabriela Julia Ana
Salomon, Horacio Eduardo
Carobene, Mauricio
author de Candia, Cristian Ariel
author_facet de Candia, Cristian Ariel
Espada, Constanza Eleonora
Duette, Gabriel
Ghiglione, Yanina Alexandra
Turk, Gabriela Julia Ana
Salomon, Horacio Eduardo
Carobene, Mauricio
author_role author
author2 Espada, Constanza Eleonora
Duette, Gabriel
Ghiglione, Yanina Alexandra
Turk, Gabriela Julia Ana
Salomon, Horacio Eduardo
Carobene, Mauricio
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv HIV-1
VPU
RECOMBINANT PROTEIN
VIRAL REPLICATION
topic HIV-1
VPU
RECOMBINANT PROTEIN
VIRAL REPLICATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Background: Multiple HIV-1 intersubtype recombinants have been identified in human populations. Previous studies from our lab group have shown that the epidemic in Argentina is characterized by the high prevalence of a circulating recombinant form, CRF12_BF, and many related BF recombinant forms. In these genomic structures a recombination breakpoint frequently involved the vpu coding region. Due to the scarce knowledge of Vpu participation in the virion release process and its impact on pathogenesis and of the functional capacities of intersubtype recombinant Vpu proteins, the aim of this work was to perform a comparative analysis on virion release capacity and relative replication capacity among viral variants harboring either a BF recombinant Vpu or a subtype B Vpu. Results: Our results showed that BF recombinant Vpu was associated to an increased viral particles production when compared to WT B variant in tetherin-expressing cell lines. This observation was tested in the context of a competition assay between the above mentioned variants. The results showed that the replication of the BF Vpu-harboring variant was more efficient in cell cultures than subtype B, reaching a higher frequency in the viral population in a short period of time. Conclusion: This study showed that as a result of intersubtype recombination, a structurally re-organized HIV-1 Vpu has an improved in vitro capacity of enhancing viral replication, and provides evidence of the changes occurring in this protein function that could play an important role in the successful spread of intersubtype recombinant variants.
Fil: de Candia, Cristian Ariel. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Centro Nacional de Referencia Para El Sida; Argentina
Fil: Espada, Constanza Eleonora. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Centro Nacional de Referencia Para El Sida; Argentina
Fil: Duette, Gabriel. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Centro Nacional de Referencia para el Sida; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ghiglione, Yanina Alexandra. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Centro Nacional de Referencia para el Sida; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Turk, Gabriela Julia Ana. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Centro Nacional de Referencia para el Sida; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Salomon, Horacio Eduardo. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Centro Nacional de Referencia para el Sida; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Carobene, Mauricio. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Microbiología. Centro Nacional de Referencia para el Sida; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Background: Multiple HIV-1 intersubtype recombinants have been identified in human populations. Previous studies from our lab group have shown that the epidemic in Argentina is characterized by the high prevalence of a circulating recombinant form, CRF12_BF, and many related BF recombinant forms. In these genomic structures a recombination breakpoint frequently involved the vpu coding region. Due to the scarce knowledge of Vpu participation in the virion release process and its impact on pathogenesis and of the functional capacities of intersubtype recombinant Vpu proteins, the aim of this work was to perform a comparative analysis on virion release capacity and relative replication capacity among viral variants harboring either a BF recombinant Vpu or a subtype B Vpu. Results: Our results showed that BF recombinant Vpu was associated to an increased viral particles production when compared to WT B variant in tetherin-expressing cell lines. This observation was tested in the context of a competition assay between the above mentioned variants. The results showed that the replication of the BF Vpu-harboring variant was more efficient in cell cultures than subtype B, reaching a higher frequency in the viral population in a short period of time. Conclusion: This study showed that as a result of intersubtype recombination, a structurally re-organized HIV-1 Vpu has an improved in vitro capacity of enhancing viral replication, and provides evidence of the changes occurring in this protein function that could play an important role in the successful spread of intersubtype recombinant variants.
publishDate 2010
dc.date.none.fl_str_mv 2010-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/15793
de Candia, Cristian Ariel; Espada, Constanza Eleonora; Duette, Gabriel; Ghiglione, Yanina Alexandra; Turk, Gabriela Julia Ana; et al.; Viral replication is enhanced by an HIV-1 intersubtype recombination-derived Vpu protein; BioMed Central; Virology Journal; 7; 259; 10-2010; 1-9
1743-422X
url http://hdl.handle.net/11336/15793
identifier_str_mv de Candia, Cristian Ariel; Espada, Constanza Eleonora; Duette, Gabriel; Ghiglione, Yanina Alexandra; Turk, Gabriela Julia Ana; et al.; Viral replication is enhanced by an HIV-1 intersubtype recombination-derived Vpu protein; BioMed Central; Virology Journal; 7; 259; 10-2010; 1-9
1743-422X
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://virologyj.biomedcentral.com/articles/10.1186/1743-422X-7-259
info:eu-repo/semantics/altIdentifier/doi/10.1186/1743-422X-7-259
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
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dc.publisher.none.fl_str_mv BioMed Central
publisher.none.fl_str_mv BioMed Central
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
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instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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