Frequency of polymorphisms of genes coding for HIV-1 co-receptors CCR5 and CCR2 in a Brazilian population

Detalhes bibliográficos
Autor(a) principal: Munerato, Patricia [UNIFESP]
Data de Publicação: 2003
Outros Autores: Azevedo, Maria Lúcia [UNIFESP], Sucupira, Maria Cecília Araripe [UNIFESP], Pardini, Regina [UNIFESP], Pinto, Gedson Humberto Novaes [UNIFESP], Catroxo, Márcia [UNIFESP], Souza, Inara Espinelli [UNIFESP], Diaz, Ricardo Sobhie [UNIFESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNIFESP
Texto Completo: http://dx.doi.org/10.1590/S1413-86702003000400002
http://repositorio.unifesp.br/handle/11600/1808
Resumo: Entry of human immunodeficiency type 1 virus (HIV-1) into target cells requires both CD4and one of the chemokine receptors. Viruses predominantly use one, or occasionally both, of the major co-receptors CCR5 and CXCR4, although other receptors, including CCR2B and CCR3, function as minor co-receptors. A 32-nucleotide deletion (delta32) within the beta-chemokine receptor 5 gene (CCR5) has been described in subjects who remain uninfected despite extensive exposition to HIV-1. The heterozygous genotype delays disease progression. This allele is common among Caucasians, but has not been found in people of African or Asian ancestry. A more common transition involving a valine to isoleucine switch in transmembrane domain I of CCR2B (64I), with unknown functional consequences, was found to delay disease progression but not to reduce infection risk. As the Brazilian population consists of a mixture of several ethnic groups, we decided to examine the genotype frequency of these polymorphisms in this country. There were 11.5% CCR5 heterozygotes among the HIV-1 infected population and 12.5% among uninfected individuals, similar to data from North America and Western Europe. The prevalence of CCR2-64I homozygotes and heterozygotes was 0.06 and 15.2%, respectively, also similar to what is known for North America and Western Europe.
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spelling Frequency of polymorphisms of genes coding for HIV-1 co-receptors CCR5 and CCR2 in a Brazilian populationCCR5CCR2BHIV-1 infectionpolymorphismsEntry of human immunodeficiency type 1 virus (HIV-1) into target cells requires both CD4and one of the chemokine receptors. Viruses predominantly use one, or occasionally both, of the major co-receptors CCR5 and CXCR4, although other receptors, including CCR2B and CCR3, function as minor co-receptors. A 32-nucleotide deletion (delta32) within the beta-chemokine receptor 5 gene (CCR5) has been described in subjects who remain uninfected despite extensive exposition to HIV-1. The heterozygous genotype delays disease progression. This allele is common among Caucasians, but has not been found in people of African or Asian ancestry. A more common transition involving a valine to isoleucine switch in transmembrane domain I of CCR2B (64I), with unknown functional consequences, was found to delay disease progression but not to reduce infection risk. As the Brazilian population consists of a mixture of several ethnic groups, we decided to examine the genotype frequency of these polymorphisms in this country. There were 11.5% CCR5 heterozygotes among the HIV-1 infected population and 12.5% among uninfected individuals, similar to data from North America and Western Europe. The prevalence of CCR2-64I homozygotes and heterozygotes was 0.06 and 15.2%, respectively, also similar to what is known for North America and Western Europe.Federal University of São Paulo Retrovirology LaboratoryUSP Biomedical Science InstituteUNIFESP, Retrovirology LaboratorySciELOFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Brazilian Society of Infectious DiseasesUniversidade Federal de São Paulo (UNIFESP)Universidade de São Paulo (USP)Munerato, Patricia [UNIFESP]Azevedo, Maria Lúcia [UNIFESP]Sucupira, Maria Cecília Araripe [UNIFESP]Pardini, Regina [UNIFESP]Pinto, Gedson Humberto Novaes [UNIFESP]Catroxo, Márcia [UNIFESP]Souza, Inara Espinelli [UNIFESP]Diaz, Ricardo Sobhie [UNIFESP]2015-06-14T13:30:05Z2015-06-14T13:30:05Z2003-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion236-240application/pdfhttp://dx.doi.org/10.1590/S1413-86702003000400002Brazilian Journal of Infectious Diseases. Brazilian Society of Infectious Diseases, v. 7, n. 4, p. 236-240, 2003.10.1590/S1413-86702003000400002S1413-86702003000400002.pdf1413-8670S1413-86702003000400002http://repositorio.unifesp.br/handle/11600/1808engBrazilian Journal of Infectious Diseasesinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UNIFESPinstname:Universidade Federal de São Paulo (UNIFESP)instacron:UNIFESP2024-08-06T05:19:30Zoai:repositorio.unifesp.br/:11600/1808Repositório InstitucionalPUBhttp://www.repositorio.unifesp.br/oai/requestbiblioteca.csp@unifesp.bropendoar:34652024-08-06T05:19:30Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)false
dc.title.none.fl_str_mv Frequency of polymorphisms of genes coding for HIV-1 co-receptors CCR5 and CCR2 in a Brazilian population
title Frequency of polymorphisms of genes coding for HIV-1 co-receptors CCR5 and CCR2 in a Brazilian population
spellingShingle Frequency of polymorphisms of genes coding for HIV-1 co-receptors CCR5 and CCR2 in a Brazilian population
Munerato, Patricia [UNIFESP]
CCR5
CCR2B
HIV-1 infection
polymorphisms
title_short Frequency of polymorphisms of genes coding for HIV-1 co-receptors CCR5 and CCR2 in a Brazilian population
title_full Frequency of polymorphisms of genes coding for HIV-1 co-receptors CCR5 and CCR2 in a Brazilian population
title_fullStr Frequency of polymorphisms of genes coding for HIV-1 co-receptors CCR5 and CCR2 in a Brazilian population
title_full_unstemmed Frequency of polymorphisms of genes coding for HIV-1 co-receptors CCR5 and CCR2 in a Brazilian population
title_sort Frequency of polymorphisms of genes coding for HIV-1 co-receptors CCR5 and CCR2 in a Brazilian population
author Munerato, Patricia [UNIFESP]
author_facet Munerato, Patricia [UNIFESP]
Azevedo, Maria Lúcia [UNIFESP]
Sucupira, Maria Cecília Araripe [UNIFESP]
Pardini, Regina [UNIFESP]
Pinto, Gedson Humberto Novaes [UNIFESP]
Catroxo, Márcia [UNIFESP]
Souza, Inara Espinelli [UNIFESP]
Diaz, Ricardo Sobhie [UNIFESP]
author_role author
author2 Azevedo, Maria Lúcia [UNIFESP]
Sucupira, Maria Cecília Araripe [UNIFESP]
Pardini, Regina [UNIFESP]
Pinto, Gedson Humberto Novaes [UNIFESP]
Catroxo, Márcia [UNIFESP]
Souza, Inara Espinelli [UNIFESP]
Diaz, Ricardo Sobhie [UNIFESP]
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Federal de São Paulo (UNIFESP)
Universidade de São Paulo (USP)
dc.contributor.author.fl_str_mv Munerato, Patricia [UNIFESP]
Azevedo, Maria Lúcia [UNIFESP]
Sucupira, Maria Cecília Araripe [UNIFESP]
Pardini, Regina [UNIFESP]
Pinto, Gedson Humberto Novaes [UNIFESP]
Catroxo, Márcia [UNIFESP]
Souza, Inara Espinelli [UNIFESP]
Diaz, Ricardo Sobhie [UNIFESP]
dc.subject.por.fl_str_mv CCR5
CCR2B
HIV-1 infection
polymorphisms
topic CCR5
CCR2B
HIV-1 infection
polymorphisms
description Entry of human immunodeficiency type 1 virus (HIV-1) into target cells requires both CD4and one of the chemokine receptors. Viruses predominantly use one, or occasionally both, of the major co-receptors CCR5 and CXCR4, although other receptors, including CCR2B and CCR3, function as minor co-receptors. A 32-nucleotide deletion (delta32) within the beta-chemokine receptor 5 gene (CCR5) has been described in subjects who remain uninfected despite extensive exposition to HIV-1. The heterozygous genotype delays disease progression. This allele is common among Caucasians, but has not been found in people of African or Asian ancestry. A more common transition involving a valine to isoleucine switch in transmembrane domain I of CCR2B (64I), with unknown functional consequences, was found to delay disease progression but not to reduce infection risk. As the Brazilian population consists of a mixture of several ethnic groups, we decided to examine the genotype frequency of these polymorphisms in this country. There were 11.5% CCR5 heterozygotes among the HIV-1 infected population and 12.5% among uninfected individuals, similar to data from North America and Western Europe. The prevalence of CCR2-64I homozygotes and heterozygotes was 0.06 and 15.2%, respectively, also similar to what is known for North America and Western Europe.
publishDate 2003
dc.date.none.fl_str_mv 2003-08-01
2015-06-14T13:30:05Z
2015-06-14T13:30:05Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/S1413-86702003000400002
Brazilian Journal of Infectious Diseases. Brazilian Society of Infectious Diseases, v. 7, n. 4, p. 236-240, 2003.
10.1590/S1413-86702003000400002
S1413-86702003000400002.pdf
1413-8670
S1413-86702003000400002
http://repositorio.unifesp.br/handle/11600/1808
url http://dx.doi.org/10.1590/S1413-86702003000400002
http://repositorio.unifesp.br/handle/11600/1808
identifier_str_mv Brazilian Journal of Infectious Diseases. Brazilian Society of Infectious Diseases, v. 7, n. 4, p. 236-240, 2003.
10.1590/S1413-86702003000400002
S1413-86702003000400002.pdf
1413-8670
S1413-86702003000400002
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Brazilian Journal of Infectious Diseases
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 236-240
application/pdf
dc.publisher.none.fl_str_mv Brazilian Society of Infectious Diseases
publisher.none.fl_str_mv Brazilian Society of Infectious Diseases
dc.source.none.fl_str_mv reponame:Repositório Institucional da UNIFESP
instname:Universidade Federal de São Paulo (UNIFESP)
instacron:UNIFESP
instname_str Universidade Federal de São Paulo (UNIFESP)
instacron_str UNIFESP
institution UNIFESP
reponame_str Repositório Institucional da UNIFESP
collection Repositório Institucional da UNIFESP
repository.name.fl_str_mv Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)
repository.mail.fl_str_mv biblioteca.csp@unifesp.br
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