Abstract:
:The dynamics of immune cell populations during acute HIV-1 infection are not fully deciphered, especially for non-T cells. In this study, we tested whether specific cellular subsets of the innate arm of the immune response are affected early after HIV-1 infection. Using a cohort of HIV-1-infected individuals, we have monitored the relative frequency of blood T lymphocytes, monocytes, and DCs at various infection stages and measured their respective intracellular HIV-1 DNA loads. The HIV-1 DNA load in naive CD4(+) T lymphocytes, which are lost very early during acute infection, was ten- to 100-fold lower than in CD57(-) and CD57(+) memory CD4(+) T lymphocytes. We observed that despite rapid, persistent loss after HIV-1 infection, pDCs represented a non-negligible HIV-1 DNA reservoir. CD16(+) proinflammatory cDCs and monocytes accumulated gradually, and HIV-infected CD16(+) monocytes contained higher HIV-1 DNA loads than their CD16(-) counterpart during acute infection. During chronic infection, CD16(+) cDCs exhibited higher HIV-1 DNA loads than the CD16(-) population. Overall, our results demonstrate that non-T cell compartments are a major HIV-1 DNA reservoir, and CD16(+) monocytes and CD16(+) cDCs potentially play an important role in HIV-1 dissemination.
journal_name
J Leukoc Bioljournal_title
Journal of leukocyte biologyauthors
Centlivre M,Legrand N,Steingrover R,van der Sluis R,Grijsen ML,Bakker M,Jurriaans S,Berkhout B,Paxton WA,Prins JM,Pollakis Gdoi
10.1189/jlb.0410231subject
Has Abstractpub_date
2011-05-01 00:00:00pages
785-95issue
5eissn
0741-5400issn
1938-3673pii
jlb.0410231journal_volume
89pub_type
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