NK Cell Activity and CD57+/NKG2Chigh Phenotype Are Increased in Men Who Have Sex With Men at High Risk for HIV

Introduction: The HIV-exposed seronegative (HESN) status is for individuals who remain seronegative despite repeated exposure to HIV. One of the main cohorts within this group is men who have sex with men (MSM). Studies of this cohort have revealed different immunological and genetic mechanisms that...

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Autores:
Zapata Builes, Wildeman
Flórez Álvarez, Lizdany
Blanquiceth, Yurany
Ramírez, Katherin
Ossa Giraldo, Ana Claudia
Velilla Hernandez, Paula Andrea
Hernández López, Juan Carlos
Tipo de recurso:
Article of journal
Fecha de publicación:
2020
Institución:
Universidad Cooperativa de Colombia
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Repositorio UCC
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oai:repository.ucc.edu.co:20.500.12494/28302
Acceso en línea:
https://hdl.handle.net/20.500.12494/28302
Palabra clave:
CD57C/NKG2Chigh NK cell
cytotoxicity
Highly exposed seronegative
men who have sex with men
natural resistance
HIV
CD57C/NKG2Chigh NK cell
cytotoxicity
Highly exposed seronegative
men who have sex with men
natural resistance
HIV
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openAccess
License
Atribución
id COOPER2_5acb5e76b4edad4eea7b9be0e5448926
oai_identifier_str oai:repository.ucc.edu.co:20.500.12494/28302
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network_name_str Repositorio UCC
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dc.title.spa.fl_str_mv NK Cell Activity and CD57+/NKG2Chigh Phenotype Are Increased in Men Who Have Sex With Men at High Risk for HIV
title NK Cell Activity and CD57+/NKG2Chigh Phenotype Are Increased in Men Who Have Sex With Men at High Risk for HIV
spellingShingle NK Cell Activity and CD57+/NKG2Chigh Phenotype Are Increased in Men Who Have Sex With Men at High Risk for HIV
CD57C/NKG2Chigh NK cell
cytotoxicity
Highly exposed seronegative
men who have sex with men
natural resistance
HIV
CD57C/NKG2Chigh NK cell
cytotoxicity
Highly exposed seronegative
men who have sex with men
natural resistance
HIV
title_short NK Cell Activity and CD57+/NKG2Chigh Phenotype Are Increased in Men Who Have Sex With Men at High Risk for HIV
title_full NK Cell Activity and CD57+/NKG2Chigh Phenotype Are Increased in Men Who Have Sex With Men at High Risk for HIV
title_fullStr NK Cell Activity and CD57+/NKG2Chigh Phenotype Are Increased in Men Who Have Sex With Men at High Risk for HIV
title_full_unstemmed NK Cell Activity and CD57+/NKG2Chigh Phenotype Are Increased in Men Who Have Sex With Men at High Risk for HIV
title_sort NK Cell Activity and CD57+/NKG2Chigh Phenotype Are Increased in Men Who Have Sex With Men at High Risk for HIV
dc.creator.fl_str_mv Zapata Builes, Wildeman
Flórez Álvarez, Lizdany
Blanquiceth, Yurany
Ramírez, Katherin
Ossa Giraldo, Ana Claudia
Velilla Hernandez, Paula Andrea
Hernández López, Juan Carlos
dc.contributor.author.none.fl_str_mv Zapata Builes, Wildeman
Flórez Álvarez, Lizdany
Blanquiceth, Yurany
Ramírez, Katherin
Ossa Giraldo, Ana Claudia
Velilla Hernandez, Paula Andrea
Hernández López, Juan Carlos
dc.subject.spa.fl_str_mv CD57C/NKG2Chigh NK cell
cytotoxicity
Highly exposed seronegative
men who have sex with men
natural resistance
HIV
topic CD57C/NKG2Chigh NK cell
cytotoxicity
Highly exposed seronegative
men who have sex with men
natural resistance
HIV
CD57C/NKG2Chigh NK cell
cytotoxicity
Highly exposed seronegative
men who have sex with men
natural resistance
HIV
dc.subject.other.spa.fl_str_mv CD57C/NKG2Chigh NK cell
cytotoxicity
Highly exposed seronegative
men who have sex with men
natural resistance
HIV
description Introduction: The HIV-exposed seronegative (HESN) status is for individuals who remain seronegative despite repeated exposure to HIV. One of the main cohorts within this group is men who have sex with men (MSM). Studies of this cohort have revealed different immunological and genetic mechanisms that can explain the phenomenon of natural HIV resistance. NK cells’ higher effector capacity is related to natural resistance to HIV. Besides, a new population of NK cells with adaptive features was described recently. These cells are increased in some HESN cohorts and appear to be involved in better control of viral replication in primarily HIV-infected subjects. The present study evaluated the role of NK cells in the natural resistance to HIV-1 infection in MSM. Methodology: Phenotypic and functional features were evaluated in NK cells from two groups of MSM, at different risks of HIV infection, according to the number of sexual partners. The production of IFN-g and b-chemokines was included in the analysis, as well as the cytotoxic capacity and adaptive NK cell frequency. Genetic features, such as HLA and KIR allele frequencies, were also explored. Results: High-risk MSM exhibit an increased frequency of fully mature and CD57C/NKG2Chigh NK cells. These individuals also show higher cytotoxic capacity and IFN-g production in response to K562 stimuli. NK cells with a CD107aC/IFN-gC functional profile were found more frequently and displayed higher IFN-g production capacity among high-risk MSM than among low-risk MSM. The protective allele HLAB 18 was only present in the high-risk MSM group as well as HLA-B 39. The protective phenotype KIR3DL1/S1-HLA-B Bw4, in a homozygous state, was particularly abundant in the high-risk population. Notably, some of these functional features were related to higher frequencies of mature and CD57C/NKG2Chigh NK cells, which, in turn, were associated with a higher number of sexual partners. Conclusion: The changes observed in the NK cell compartment can be driven by the magnitude of sexual exposure and immunological challenges of high-risk individuals, which could influence their resistance/susceptibility to HIV infection.
publishDate 2020
dc.date.accessioned.none.fl_str_mv 2020-11-27T16:29:52Z
dc.date.available.none.fl_str_mv 2020-11-27T16:29:52Z
dc.date.issued.none.fl_str_mv 2020-09-11
dc.type.none.fl_str_mv Artículo
dc.type.coar.fl_str_mv http://purl.org/coar/resource_type/c_2df8fbb1
dc.type.coar.none.fl_str_mv http://purl.org/coar/resource_type/c_6501
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dc.type.driver.none.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.issn.spa.fl_str_mv 1664-3224
dc.identifier.uri.spa.fl_str_mv 10.3389/fimmu.2020.537044
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/20.500.12494/28302
dc.identifier.bibliographicCitation.spa.fl_str_mv Flórez-Álvarez, L., Blanquiceth, Y., Ramírez, K., Ossa-Giraldo, A. C., Velilla, P. A., Hernandez, J. C. y Zapata, W. (2020) NK Cell Activity and CD57+/NKG2Chigh Phenotype Are Increased in Men Who Have Sex With Men at High Risk for HIV
identifier_str_mv 1664-3224
10.3389/fimmu.2020.537044
Flórez-Álvarez, L., Blanquiceth, Y., Ramírez, K., Ossa-Giraldo, A. C., Velilla, P. A., Hernandez, J. C. y Zapata, W. (2020) NK Cell Activity and CD57+/NKG2Chigh Phenotype Are Increased in Men Who Have Sex With Men at High Risk for HIV
url https://hdl.handle.net/20.500.12494/28302
dc.relation.isversionof.spa.fl_str_mv https://www.frontiersin.org/articles/10.3389/fimmu.2020.537044/full?report=reader
dc.relation.ispartofjournal.spa.fl_str_mv Frontiers in Immunology
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Christian Körner, Heinrich-Pette-Institut, Leibniz-Institut für Experimentelle Virologie, Germany
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spelling Zapata Builes, WildemanFlórez Álvarez, LizdanyBlanquiceth, YuranyRamírez, KatherinOssa Giraldo, Ana ClaudiaVelilla Hernandez, Paula AndreaHernández López, Juan Carlos 11:5370442020-11-27T16:29:52Z2020-11-27T16:29:52Z2020-09-111664-322410.3389/fimmu.2020.537044https://hdl.handle.net/20.500.12494/28302Flórez-Álvarez, L., Blanquiceth, Y., Ramírez, K., Ossa-Giraldo, A. C., Velilla, P. A., Hernandez, J. C. y Zapata, W. (2020) NK Cell Activity and CD57+/NKG2Chigh Phenotype Are Increased in Men Who Have Sex With Men at High Risk for HIVIntroduction: The HIV-exposed seronegative (HESN) status is for individuals who remain seronegative despite repeated exposure to HIV. One of the main cohorts within this group is men who have sex with men (MSM). Studies of this cohort have revealed different immunological and genetic mechanisms that can explain the phenomenon of natural HIV resistance. NK cells’ higher effector capacity is related to natural resistance to HIV. Besides, a new population of NK cells with adaptive features was described recently. These cells are increased in some HESN cohorts and appear to be involved in better control of viral replication in primarily HIV-infected subjects. The present study evaluated the role of NK cells in the natural resistance to HIV-1 infection in MSM. Methodology: Phenotypic and functional features were evaluated in NK cells from two groups of MSM, at different risks of HIV infection, according to the number of sexual partners. The production of IFN-g and b-chemokines was included in the analysis, as well as the cytotoxic capacity and adaptive NK cell frequency. Genetic features, such as HLA and KIR allele frequencies, were also explored. Results: High-risk MSM exhibit an increased frequency of fully mature and CD57C/NKG2Chigh NK cells. These individuals also show higher cytotoxic capacity and IFN-g production in response to K562 stimuli. NK cells with a CD107aC/IFN-gC functional profile were found more frequently and displayed higher IFN-g production capacity among high-risk MSM than among low-risk MSM. The protective allele HLAB 18 was only present in the high-risk MSM group as well as HLA-B 39. The protective phenotype KIR3DL1/S1-HLA-B Bw4, in a homozygous state, was particularly abundant in the high-risk population. Notably, some of these functional features were related to higher frequencies of mature and CD57C/NKG2Chigh NK cells, which, in turn, were associated with a higher number of sexual partners. Conclusion: The changes observed in the NK cell compartment can be driven by the magnitude of sexual exposure and immunological challenges of high-risk individuals, which could influence their resistance/susceptibility to HIV infection.Introduction: The HIV-exposed seronegative (HESN) status is for individuals who remain seronegative despite repeated exposure to HIV. One of the main cohorts within this group is men who have sex with men (MSM). Studies of this cohort have revealed different immunological and genetic mechanisms that can explain the phenomenon of natural HIV resistance. NK cells’ higher effector capacity is related to natural resistance to HIV. Besides, a new population of NK cells with adaptive features was described recently. These cells are increased in some HESN cohorts and appear to be involved in better control of viral replication in primarily HIV-infected subjects. The present study evaluated the role of NK cells in the natural resistance to HIV-1 infection in MSM. Methodology: Phenotypic and functional features were evaluated in NK cells from two groups of MSM, at different risks of HIV infection, according to the number of sexual partners. The production of IFN-g and b-chemokines was included in the analysis, as well as the cytotoxic capacity and adaptive NK cell frequency. Genetic features, such as HLA and KIR allele frequencies, were also explored. Results: High-risk MSM exhibit an increased frequency of fully mature and CD57C/NKG2Chigh NK cells. These individuals also show higher cytotoxic capacity and IFN-g production in response to K562 stimuli. NK cells with a CD107aC/IFN-gC functional profile were found more frequently and displayed higher IFN-g production capacity among high-risk MSM than among low-risk MSM. The protective allele HLAB 18 was only present in the high-risk MSM group as well as HLA-B 39. The protective phenotype KIR3DL1/S1-HLA-B Bw4, in a homozygous state, was particularly abundant in the high-risk population. Notably, some of these functional features were related to higher frequencies of mature and CD57C/NKG2Chigh NK cells, which, in turn, were associated with a higher number of sexual partners. Conclusion: The changes observed in the NK cell compartment can be driven by the magnitude of sexual exposure and immunological challenges of high-risk individuals, which could influence their resistance/susceptibility to HIV infection.https://scienti.minciencias.gov.co/cvlac/EnProdArticulo/query.do?cod_producto=73&cod_rh=0000157775https://orcid.org/0000-0002-7351-8738COL0112548wildeman.zapatab@campusucc.edu.cohttps://scholar.google.com.co/citations?hl=en&user=VLZxl1UAAAAJ14Universidad Cooperativa de Colombia, Facultad de Ciencias de la Salud, Medicina, Medellín y EnvigadoChristian Körner, Heinrich-Pette-Institut, Leibniz-Institut für Experimentelle Virologie, GermanyMedicinaMedellínhttps://www.frontiersin.org/articles/10.3389/fimmu.2020.537044/full?report=readerFrontiers in ImmunologyHorton RE, McLaren PJ, Fowke K, Kimani J, Ball TB. Cohorts for the study of HIV−1–exposed but uninfected individuals: benefits and limitations. J Infect Dis. 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(2001) 98:5140–5. doi: 10.1073/pnas.071548198CD57C/NKG2Chigh NK cellcytotoxicityHighly exposed seronegativemen who have sex with mennatural resistanceHIVCD57C/NKG2Chigh NK cellcytotoxicityHighly exposed seronegativemen who have sex with mennatural resistanceHIVNK Cell Activity and CD57+/NKG2Chigh Phenotype Are Increased in Men Who Have Sex With Men at High Risk for HIVArtículohttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAtribucióninfo:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2PublicationLICENSElicense.txtlicense.txttext/plain; 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