TLR Ligation Triggers Somatic Hypermutation in Transitional B Cells Inducing the Generation of IgM Memory B Cells
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چکیده
منابع مشابه
TLR ligation triggers somatic hypermutation in transitional B cells inducing the generation of IgM memory B cells.
TLR9 activation by unmethylated CpG provides a homeostatic mechanism to maintain B cell memory in the absence of Ag. In this study, we demonstrate that CpG also triggers the generation of somatically mutated memory B cells from immature transitional B cells. In response to CpG, a fraction of transitional B cells proliferates and introduces somatic hypermutations in the H chain V regions. The no...
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IgM(+)IgD(+)CD27(+) B cells from peripheral blood have been described as circulating marginal zone B cells. It is still unknown when and where these cells develop. These IgM(+)IgD(+)CD27(+) B cells exhibit somatic hypermutations (SHMs) in their B cell receptors, but the exact nature of the signals leading to induction of these SHMs remains elusive. Here, we show that IgM(+)IgD(+)CD27(+) B cells...
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The vertebrate immune system generates high-affinity antibodies to external antigens through a process of somatic hypermutation that takes place in germinal centers formed in the secondary lymphoid tissues. B cells proliferating in these germinal centers experience random mutations in the genes encoding the variable region of their immunoglobulin molecules and are subsequently selected for high...
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ژورنال
عنوان ژورنال: The Journal of Immunology
سال: 2010
ISSN: 0022-1767,1550-6606
DOI: 10.4049/jimmunol.1002722