Immunological Fingerprints of Controllers Developing Neutralizing HIV-1 Antibodies.
Cell Rep
; 30(4): 984-996.e4, 2020 01 28.
Article
em En
| MEDLINE
| ID: mdl-31995767
ABSTRACT
The induction of broadly neutralizing antibodies (bnAbs) is highly desired for an effective vaccine against HIV-1. Typically, bnAbs develop in patients with high viremia, but they can also evolve in some untreated HIV-1 controllers with low viral loads. Here, we identify a subgroup of neutralizer-controllers characterized by myeloid DCs (mDCs) with a distinct inflammatory signature and a superior ability to prime T follicular helper (Tfh)-like cells in an STAT4-dependent fashion. This distinct immune profile is associated with a higher frequency of Tfh-like cells in peripheral blood (pTfh) and an enrichment for Tfh-defining genes in circulating CD4+ T cells. Correspondingly, monocytes from this neutralizer controller subgroup upregulate genes encoding for chemotaxis and inflammation, and they secrete high levels of IL-12 in response to TLR stimulation. Our results suggest the existence of multi-compartment immune networks between mDCs, Tfh, and monocytes that may facilitate the development of bnAbs in a subgroup of HIV-1 controllers.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Contexto em Saúde:
1_ASSA2030
/
2_ODS3
Base de dados:
MEDLINE
Assunto principal:
Células Dendríticas
/
Monócitos
/
Anticorpos Anti-HIV
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Linfócitos T CD4-Positivos
/
Infecções por HIV
/
HIV-1
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Linfócitos T Auxiliares-Indutores
/
Anticorpos Neutralizantes
Tipo de estudo:
Prognostic_studies
Limite:
Adult
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Aged
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Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Cell Rep
Ano de publicação:
2020
Tipo de documento:
Article