Frequency of polymorphisms of genes coding for HIV-1 co-receptors CCR5 and CCR2 in a Brazilian population
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Outros Autores: | , , , , , , |
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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Repositório Institucional da UNIFESP |
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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 |
_version_ |
1814268389804212224 |