Journal
IMMUNOLOGICAL REVIEWS
Volume 247, Issue -, Pages 36-51Publisher
WILEY-BLACKWELL
DOI: 10.1111/j.1600-065X.2012.01114.x
Keywords
sphingosine-1-phosphate; chemokine; migration; affinity maturation; apoptosis; antibody
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Funding
- NIH [R01 AI45073]
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Germinal centers (GCs) are sites of rapid B-cell proliferation and somatic mutation. These ovoid structures develop within the center of follicles and grow to a stereotypic size. The cell migration and interaction dynamics underlying GC B-cell selection events are currently under intense scrutiny. In recent study, we identified a role for a migration inhibitory receptor, S1PR2, in promoting GC B-cell confinement to GCs. S1PR2 also dampens Akt activation and deficiency in S1PR2 or components of its signaling pathway result in a loss of growth control in chronically stimulated mucosal GCs. Herein, we detail present understanding of S1PR2 and S1P biology as it pertains to GC B cells and place this information in the context of a current model of GC function.
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