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Abstract
Mouse invariant natural killer T cells (iNKT cells) provide cognate and noncognate help for lipid and protein-specific B cells, respectively. However, the long-term outcome for B cells after cognate help is provided by iNKT cells is unknown at present. Here we found that cognate iNKT cell help resulted in a B cell differentiation program characterized by extrafollicular plasmablasts, germinal-center formation, affinity maturation and a robust primary immunoglobulin G (IgG) antibody response that was uniquely dependent on iNKT cell-derived interleukin 21 (IL-21). However, cognate help from iNKT cells did not generate an enhanced humoral memory response. Thus, cognate iNKT cell help for lipid-specific B cells induces a unique signature that is a hybrid of classic T cell-dependent and T cell-independent type 2 B cell responses.
Original language | English |
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Pages (from-to) | 44-50 |
Number of pages | 7 |
Journal | Nature Immunology |
Volume | 13 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2012 |
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Dive into the research topics of 'Invariant natural killer T cells direct B cell responses to cognate lipid antigen in an IL-21-dependent manner'. Together they form a unique fingerprint.Projects
- 1 Finished
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Design, synthesis, and assessment of specific iNKT cell agonists for clinical applications
Besra, D., Cox, L., Cunningham, A. & Lammas, T.
1/03/12 → 29/02/16
Project: Research Councils