Journal
MOLECULAR CELL
Volume 54, Issue 2, Pages 255-262Publisher
CELL PRESS
DOI: 10.1016/j.molcel.2014.04.001
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Funding
- Wellcome Trust
- Kennedy Trust
- U.S. National Institutes of Health
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Molecular interactions at the interface between helper T cells and antigen-presenting B cells govern the ability to produce specific antibodies, which is a central event in protective immunity generated by natural infection or man-made vaccines. In order for a T cell to deliver effective help to a B cell and guide affinity maturation, it needs to provide feedback that is proportional to the amount of antigen the B cell collects with its surface antibody. This review focuses on mechanisms by which T and B cells manage to count the products of antigen capture and encourage B cells with the best receptors to dominate the response and make antibody-producing plasma cells. We discuss what is known about the proportionality of T cells responses to presented antigens and consider the mechanisms that B cells may use to keep count of positive feedback from T cells.
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