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Lyn-deficient mice were generated to analyze the role of Lyn in B cell antigen receptor (BCR) signaling. These mice had a reduced number of peripheral B cells with a greater proportion of immature cells and a higher than normal turnover rate. Aged lyn-/- mice developed splenomegaly, produced autoantibodies, and had an expanded population of B lymphoblasts of the B1 lineage. Splenic B cells from young lyn-/- mice initiated early BCR signaling events, although in a delayed fashion. Unexpectedly, lyn-/- B cells exhibited an enhanced MAP kinase activation and an increased proliferative response to BCR engagement. Stimulation of lyn-/- B cells with intact and F(ab')2 anti-IgM revealed defects in at least two mechanisms that negatively regulate BCR signaling, one of which involves Fc gammaRIIb1.
Pubmed ID: 9252121
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Organization which manufactures bacteria for research and clinical investigations. List Biological Laboratories cultivates native and recombinant microorganisms and purifies, formulates, and lyopholizes enzyme products, virulence factors, and microbial cell wall components. Products include antibodies, microbial toxins, peptides, and virulence factors. Services include live biotherapeutics for clinical trials, contracting research capabilities, GMP regulatory support, lyopholization services and support, and toxin compliance.
View all literature mentionsA software for acquiring and analyzing flow cytometry data. The user can create plots with elements like regions, gates, statistics, markers, and annotated text. The software can also be used for batch analysis or quality control of analysis. Results can be exported and saved.
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