Characterization of (4-Hydroxy-3-Nitrophenyl)Acetyl (NP)-Specific Germinal Center B Cells and Antigen-Binding B220− Cells after Primary NP Challenge in Mice
نویسندگان
چکیده
منابع مشابه
Characterization of (4-hydroxy-3-nitrophenyl)acetyl (NP)-specific germinal center B cells and antigen-binding B220- cells after primary NP challenge in mice.
Previous studies examining the primary germinal center (GC) response to SRBC in mice demonstrated a steady ratio of IgM(+) to isotype-switched GC B cells and a persistent population of GC B cells with a founder phenotype. These characteristics held true at the inductive, plateau, and dissociative phases of the GC response, suggesting a steady-state environment. To test whether these characteris...
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We have recently demonstrated that a novel somatically mutated B220(-) memory B cell subset rapidly dominates the secondary immune response to (4-hydroxy-3-nitrophenyl) acetyl (NP). Upon adoptive transfer with Ag, B220(+)NP(+) memory B cells produce large numbers of B220(-)NP(+) B cells that can rapidly differentiate into plasma cells. Therefore, it is not clear whether the novel B220(-) memory...
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متن کاملIn situ studies of the primary immune response to (4-hydroxy-3- nitrophenyl)acetyl. III. The kinetics of V region mutation and selection in germinal center B cells
In the murine spleen, germinal centers are the anatomic sites for antigen-driven hypermutation and selection of immunoglobulin (Ig) genes. To detail the kinetics of Ig mutation and selection, 178 VDJ sequences from 16 antigen-induced germinal centers were analyzed. Although germinal centers appeared by day 4, mutation was not observed in germinal center B cells until day 8 postimmunization; the...
متن کاملA form of immunologic tolerance through impairment of germinal center development.
Primary immunization with the T-cell-dependent antigen (4-hydroxy-3-nitrophenyl)acetyl (NP) coupled to human serum albumin results in the development of two pathways of B-cell development, the extrafollicular pathway and the germinal center pathway. Soluble, deaggregated NP-human serum albumin injected before immunization results in a marked diminution of clonable higher-affinity antibody-formi...
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ژورنال
عنوان ژورنال: The Journal of Immunology
سال: 2006
ISSN: 0022-1767,1550-6606
DOI: 10.4049/jimmunol.177.4.2072