Abstract:
:In resting CD4(+) T lymphocytes harboring human immunodeficiency virus type 1 (HIV-1), replication-competent virus persists in patients responding to highly active antiretroviral therapy (HAART). This small latent reservoir represents between 10(3) and 10(7) cells per patient. However, the efficiency of HIV-1 DNA-positive resting CD4(+) T cells in converting to HIV-1-antigen-secreting cells (HIV-1-Ag-SCs) after in vitro CD4(+)-T-cell polyclonal stimulation has not been satisfactorily evaluated. By using an HIV-1-antigen enzyme-linked immunospot assay, 8 HIV-1-Ag-SCs per 10(6) CD4(+) resting T cells were quantified in 25 patients with a plasma viral load of <20 copies/ml, whereas 379 were enumerated in 10 viremic patients. In parallel, 369 and 1,238 copies of HIV-1 DNA per 10(6) CD4(+) T cells were enumerated in the two groups of patients, respectively. Only a minority of latently HIV-1 DNA-infected CD4(+) T cells could be stimulated in vitro to become HIV-1-Ag-SCs, particularly in aviremic patients. The difference between the number of HIV-1 immunospots in viremic versus aviremic patients could be explained by HIV-1 unintegrated viral DNA that gave additional HIV-1-Ag-SCs after in vitro CD4(+)-T-cell polyclonal stimulation. The ELISPOT approach to targeting the HIV-1-Ag-SCs could be a useful method for identifying latently HIV-1-infected CD4(+) T cells carrying replication-competent HIV-1 in patients responding to HAART.
journal_name
J Viroljournal_title
Journal of virologyauthors
Fondere JM,Petitjean G,Huguet MF,Salhi SL,Baillat V,Macura-Biegun A,Becquart P,Reynes J,Vendrell JPdoi
10.1128/JVI.78.19.10536-10542.2004subject
Has Abstractpub_date
2004-10-01 00:00:00pages
10536-42issue
19eissn
0022-538Xissn
1098-5514pii
78/19/10536journal_volume
78pub_type
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pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章,评审
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pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:2004-07-01 00:00:00
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pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:1989-11-01 00:00:00
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pub_type: 杂志文章
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更新日期:1977-02-01 00:00:00