The Activation and Subsequent Regulatory Roles of Lyn and CD19 After B Cell Receptor Ligation are Independent
نویسندگان
چکیده
منابع مشابه
The activation and subsequent regulatory roles of Lyn and CD19 after B cell receptor ligation are independent.
The cell surface glycoprotein CD19 and the Src-related protein tyrosine kinase Lyn are key mediators of, respectively, positive and negative signaling in B cells. Despite the apparent opposition of their regulatory functions, a recent model of the biochemical events after B cell receptor (BCR) ligation intimately links the activation of Lyn and CD19. We examined the biochemical consequences of ...
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CD19 amplifies B lymphocyte signal transduction by regulating Src-family protein tyrosine kinase activation.
Ligation of the B cell Ag receptor (BCR) induces cellular activation by stimulating Src-family protein tyrosine kinases (PTKs) to phosphorylate members of the BCR complex. Subsequently, Src-family PTKs, particularly Lyn, are proposed to phosphorylate and bind CD19, a cell-surface costimulatory molecule that regulates mature B cell activation. Herein, we show that B cells from CD19-deficient mic...
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ژورنال
عنوان ژورنال: The Journal of Immunology
سال: 2002
ISSN: 0022-1767,1550-6606
DOI: 10.4049/jimmunol.169.12.6910