Dectin-1 Stimulation Selectively Reinforces LPS-driven IgG1 Production by Mouse B Cells
Immune Network
; : 205-212, 2013.
Article
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| WPRIM
| ID: wpr-223722
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ABSTRACT
Dectin-1, which specifically recognizes beta-glucan of fungal cell walls, is a non-Toll-like receptor (TLR) pattern recognition receptor and a representative of C-type lectin receptors (CLRs). The importance of Dectin-1 in innate immune cells, such as dendritic cells and macrophages, has previously been well studied. However, the function of Dectin-1 in B cells is very poorly understood. To determine the role of Dectin-1 in B cell activation, we first investigated whether mouse B cells express Dectin-1 and then assessed the effect of Dectin-1 stimulation on B cell proliferation and antibody production. Mouse B cells express mRNAs encoding CLRs, including Dectin-1, and surface Dectin-1 was expressed in B cells of C57BL/6 rather than BALB/c strain. Dectin-1 agonists, heat-killed Candida albicans (HKCA) and heat-killed Saccharomyces cerevisiae (HKSC), alone induced B cell proliferation but not antibody production. Interestingly, HKSC, HKCA, and depleted zymosan (a selective Dectin-1 agonist) selectively enhanced LPS-driven IgG1 production. Taken together, these results suggest that, during fungal infection, beta-glucan-stimulated Dectin-1 may cooperate with TLR4 to specifically enhance IgG1 production by mouse B cells.
Texte intégral:
1
Indice:
WPRIM
Sujet Principal:
Saccharomyces cerevisiae
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Entorses et foulures
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Zymosan
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Cellules dendritiques
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Candida albicans
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Immunoglobuline G
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ARN messager
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Lymphocytes B
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Paroi cellulaire
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Lectines de type C
Limites du sujet:
Animals
langue:
En
Texte intégral:
Immune Network
Année:
2013
Type:
Article