Single cell analysis of lymph node tissue from HIV-1 infected patients reveals that the majority of CD4+ T-cells contain one HIV-1 DNA molecule.
Single cell analysis of lymph node tissue from HIV-1 infected patients reveals that the majority of CD4+ T-cells contain one HIV-1 DNA molecule.
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DOI:
10.1371/journal.ppat.1003432
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发表时间:
2013
期刊:
影响因子:
6.7
通讯作者:
Maldarelli F
中科院分区:
文献类型:
--
作者:
Josefsson L;Palmer S;Faria NR;Lemey P;Casazza J;Ambrozak D;Kearney M;Shao W;Kottilil S;Sneller M;Mellors J;Coffin JM;Maldarelli F
Genetic recombination contributes to the diversity of human immunodeficiency virus (HIV-1). Productive HIV-1 recombination is, however, dependent on both the number of HIV-1 genomes per infected cell and the genetic relationship between these viral genomes. A detailed analysis of the number of proviruses and their genetic relationship in infected cells isolated from peripheral blood and tissue compartments is therefore important for understanding HIV-1 recombination, genetic diversity and the dynamics of HIV-1 infection. To address these issues, we used a previously developed single-cell sequencing technique to quantify and genetically characterize individual HIV-1 DNA molecules from single cells in lymph node tissue and peripheral blood. Analysis of memory and naïve CD4+ T cells from paired lymph node and peripheral blood samples from five untreated chronically infected patients revealed that the majority of these HIV-1-infected cells (>90%) contain only one copy of HIV-1 DNA, implying a limited potential for productive recombination in virus produced by these cells in these two compartments. Phylogenetic analysis revealed genetic similarity of HIV-1 DNA in memory and naïve CD4+ T-cells from lymph node, peripheral blood and HIV-1 RNA from plasma, implying exchange of virus and/or infected cells between these compartments in untreated chronic infection. One of the greatest challenges facing treatment and vaccine development for human immunodeficiency virus (HIV-1) is the genetic diversity of the virus. One of the main factors contributing to HIV-1 diversity is recombination between two genetically different viral RNA genomes that enter a cell in the same virion. Such heterozygous virions can only arise from cells that contain two or more genetically distinct HIV-1 proviruses. Therefore, the amount of productive HIV-1 recombination in infected individuals is dependent on the number of multiple infected cells and the genetic relationship of the proviruses they contain. In this work we use a recently developed assay, single-cell sequencing, to analyze the number and genetic makeup of HIV-1 DNA molecules in single infected cells. We used this assay to analyze memory and naïve CD4+ T cells from lymph node tissue and peripheral blood sampled from five chronically untreated HIV-1 infected individuals. Our results revealed that <10% of infected memory and naïve T-cells from either the lymph node tissue or peripheral blood are multiply infected, a number far below earlier estimates. In addition, we demonstrate a similar genetic composition of HIV-1 in lymph node tissue, peripheral blood and plasma during untreated chronic HIV-1 infection.
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影响因子:
3.3
作者:
Groot F;van Capel TM;Schuitemaker J;Berkhout B;de Jong EC
通讯作者:
de Jong EC
DOI:
10.1084/jem.192.5.637
发表时间:
2000-09-04
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Moir S;Malaspina A;Li Y;Chun TW;Lowe T;Adelsberger J;Baseler M;Ehler LA;Liu S;Davey RT Jr;Mican JA;Fauci AS
通讯作者:
Fauci AS
影响因子:
56.9
作者:
BUKRINSKY, MI;STANWICK, TL;STEVENSON, M
通讯作者:
STEVENSON, M
影响因子:
56.9
作者:
COFFIN, JM
通讯作者:
COFFIN, JM
DOI:
10.1073/pnas.94.5.1925
发表时间:
1997-03-04
影响因子:
11.1
作者:
Bleul, CC;Wu, LJ;Mackay, CR
通讯作者:
Mackay, CR