Abstract:
:In summary, the complement system has evolved an important function in regulation of humoral immunity to T-dependent antigens. Covalent attachment of activated C3 to antigen alters its fate by enhancing uptake on the surface of FDC via CD21/CD35; and by enhancing signal transduction via the B cell coreceptor CD21/CD19/Tapa-1. In the absence of complement receptors CD21/CD35 or C3 ligand, naive B cells bearing low affinity BCR fail to effectively survive within the lymphoid follicle following contact with antigen and death is mediated by a Fas-dependent mechanism. Alternatively, B cells sufficiently activated to initiate a GC reaction fail to survive in the absence of CD21-CD21L interaction.
journal_name
Curr Top Microbiol Immunoljournal_title
Current topics in microbiology and immunologyauthors
Carroll Mdoi
10.1007/978-3-642-60162-0_8subject
Has Abstractpub_date
1999-01-01 00:00:00pages
63-8; discussion 69eissn
0070-217Xissn
2196-9965journal_volume
246pub_type
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pub_type: 历史文章,杂志文章,评审
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