Innate lymphoid cells integrate stromal and immunological signals to enhance antibody production by splenic marginal zone B cells.
Nat Immunol
; 15(4): 354-364, 2014 Apr.
Article
en En
| MEDLINE
| ID: mdl-24562309
ABSTRACT
Innate lymphoid cells (ILCs) regulate stromal cells, epithelial cells and cells of the immune system, but their effect on B cells remains unclear. Here we identified RORγt(+) ILCs near the marginal zone (MZ), a splenic compartment that contains innate-like B cells highly responsive to circulating T cell-independent (TI) antigens. Splenic ILCs established bidirectional crosstalk with MAdCAM-1(+) marginal reticular cells by providing tumor-necrosis factor (TNF) and lymphotoxin, and they stimulated MZ B cells via B cell-activation factor (BAFF), the ligand of the costimulatory receptor CD40 (CD40L) and the Notch ligand Delta-like 1 (DLL1). Splenic ILCs further helped MZ B cells and their plasma-cell progeny by coopting neutrophils through release of the cytokine GM-CSF. Consequently, depletion of ILCs impaired both pre- and post-immune TI antibody responses. Thus, ILCs integrate stromal and myeloid signals to orchestrate innate-like antibody production at the interface between the immune system and circulatory system.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Células Plasmáticas
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Bazo
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Linfocitos B
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Linfocitos
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Formación de Anticuerpos
Tipo de estudio:
Prognostic_studies
Límite:
Animals
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Humans
Idioma:
En
Año:
2014
Tipo del documento:
Article