Faster HIV-1 disease progression among Brazilian individuals recently infected with CXCR4-utilizing strains

Primary HIV infection is usually caused by R5 viruses, and there is an association between the emergence of CCXR4-utilizing strains and faster disease progression. We characterized HIV-1 from a cohort of recently infected individuals in Brazil, predicted the virus's co-receptor use based on the...

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Veröffentlicht in:PloS one 2012-01, Vol.7 (1), p.e30292-e30292
Hauptverfasser: Sucupira, Maria Cecilia Araripe, Sanabani, Sabri, Cortes, Rodrigo M, Giret, Maria Teresa M, Tomiyama, Helena, Sauer, Mariana M, Sabino, Ester Cerdeira, Janini, Luiz Mario, Kallas, Esper Georges, Diaz, Ricardo Sobhie
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container_title PloS one
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creator Sucupira, Maria Cecilia Araripe
Sanabani, Sabri
Cortes, Rodrigo M
Giret, Maria Teresa M
Tomiyama, Helena
Sauer, Mariana M
Sabino, Ester Cerdeira
Janini, Luiz Mario
Kallas, Esper Georges
Diaz, Ricardo Sobhie
description Primary HIV infection is usually caused by R5 viruses, and there is an association between the emergence of CCXR4-utilizing strains and faster disease progression. We characterized HIV-1 from a cohort of recently infected individuals in Brazil, predicted the virus's co-receptor use based on the env genotype and attempted to correlate virus profiles with disease progression. A total of 72 recently infected HIV patients were recruited based on the Serologic Testing Algorithm for Recent HIV Seroconversion and were followed every three to four months for up to 78 weeks. The HIV-1 V3 region was characterized by sequencing nine to twelve weeks after enrollment. Disease progression was characterized by CD4+ T-cell count decline to levels consistently below 350 cells/µL. Twelve out of 72 individuals (17%) were predicted to harbor CXCR4-utilizing strains; a baseline CD4350; after 78 weeks, 33 individuals with CCR5 strains and one individual with CXCR4 strains had CD4>350 (p = 0.001). There was no association between CD4 decline and demographic characteristics or HIV-1 subtype. Our findings confirm the presence of strains with higher in vitro pathogenicity during early HIV infection, suggesting that even among recently infected individuals, rapid progression may be a consequence of the early emergence of CXCR4-utilizing strains. Characterizing the HIV-1 V3 region by sequencing may be useful in predicting disease progression and guiding treatment initiation decisions.
doi_str_mv 10.1371/journal.pone.0030292
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Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sucupira, Maria Cecilia Araripe</au><au>Sanabani, Sabri</au><au>Cortes, Rodrigo M</au><au>Giret, Maria Teresa M</au><au>Tomiyama, Helena</au><au>Sauer, Mariana M</au><au>Sabino, Ester Cerdeira</au><au>Janini, Luiz Mario</au><au>Kallas, Esper Georges</au><au>Diaz, Ricardo Sobhie</au><au>Poehlmann, Stefan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Faster HIV-1 disease progression among Brazilian individuals recently infected with CXCR4-utilizing strains</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2012-01-26</date><risdate>2012</risdate><volume>7</volume><issue>1</issue><spage>e30292</spage><epage>e30292</epage><pages>e30292-e30292</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>Primary HIV infection is usually caused by R5 viruses, and there is an association between the emergence of CCXR4-utilizing strains and faster disease progression. We characterized HIV-1 from a cohort of recently infected individuals in Brazil, predicted the virus's co-receptor use based on the env genotype and attempted to correlate virus profiles with disease progression. A total of 72 recently infected HIV patients were recruited based on the Serologic Testing Algorithm for Recent HIV Seroconversion and were followed every three to four months for up to 78 weeks. The HIV-1 V3 region was characterized by sequencing nine to twelve weeks after enrollment. Disease progression was characterized by CD4+ T-cell count decline to levels consistently below 350 cells/µL. Twelve out of 72 individuals (17%) were predicted to harbor CXCR4-utilizing strains; a baseline CD4&lt;350 was more frequent among these individuals (p = 0.03). Fifty-seven individuals that were predicted to have CCR5-utilizing viruses and 10 individuals having CXCR4-utilizing strains presented with baseline CD4&gt;350; after 78 weeks, 33 individuals with CCR5 strains and one individual with CXCR4 strains had CD4&gt;350 (p = 0.001). There was no association between CD4 decline and demographic characteristics or HIV-1 subtype. Our findings confirm the presence of strains with higher in vitro pathogenicity during early HIV infection, suggesting that even among recently infected individuals, rapid progression may be a consequence of the early emergence of CXCR4-utilizing strains. Characterizing the HIV-1 V3 region by sequencing may be useful in predicting disease progression and guiding treatment initiation decisions.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>22291931</pmid><doi>10.1371/journal.pone.0030292</doi><tpages>e30292</tpages><oa>free_for_read</oa></addata></record>
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subjects Acquired immune deficiency syndrome
Adult
AIDS
Algorithms
Amino Acid Sequence
Amino acids
Antiretroviral drugs
Binding Sites
Biology
Brazil
CCR5 protein
CD4 antigen
Cohort Studies
CXCR4 protein
Demographics
Development and progression
Disease Progression
Emergence
Female
Health aspects
HIV
HIV Envelope Protein gp120 - chemistry
HIV Envelope Protein gp120 - genetics
HIV Envelope Protein gp120 - metabolism
HIV infections
HIV Infections - diagnosis
HIV Infections - genetics
HIV Infections - immunology
HIV Infections - virology
HIV patients
HIV tests
HIV-1 - genetics
HIV-1 - immunology
HIV-1 - metabolism
HIV-1 - physiology
Human immunodeficiency virus
Humans
Infection
Infections
Lymphocytes T
Male
Medical treatment
Medicine
Middle Aged
Molecular Sequence Data
Mutation
Pathogenicity
Pathogens
Peptide Fragments - chemistry
Peptide Fragments - genetics
Peptide Fragments - metabolism
Receptors, CXCR4 - immunology
Receptors, CXCR4 - metabolism
Receptors, Virus - metabolism
Sequence Homology, Amino Acid
Seroconversion
Strains (organisms)
T cells
Time Factors
Virus Internalization
Viruses
Young Adult
title Faster HIV-1 disease progression among Brazilian individuals recently infected with CXCR4-utilizing strains
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