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In vivo control of B-cell survival and antigen-specific B-cell responses.

Authors
  • Chan, Tyani D
  • Gardam, Sandra
  • Gatto, Dominique
  • Turner, Vivian M
  • Silke, John
  • Brink, Robert
Type
Published Article
Journal
Immunological Reviews
Publisher
Wiley (Blackwell Publishing)
Publication Date
Sep 01, 2010
Volume
237
Issue
1
Pages
90–103
Identifiers
DOI: 10.1111/j.1600-065X.2010.00942.x
PMID: 20727031
Source
Medline
License
Unknown

Abstract

Targeted modification of the mouse genome provides the capability to manipulate complex physiological processes in a precise and controlled manner. Investigation of B-lymphocyte biology has benefited not only from the targeted modification of genes controlling B-cell survival and responsiveness, but also from the manipulation of antigen specificity made possible by targeting endogenous immunoglobulin loci. In this review, we discuss recent results obtained from our laboratory using gene-targeted mouse models to investigate the in vivo regulation of B-cell survival and responsiveness. The control of BAFF-dependent survival signals by the TRAF2- and TRAF3-signaling proteins is discussed as is the potential involvement of these molecules in B-lineage malignancies. We also outline the development and use of the SW(HEL) model for analyzing antigen-specific B-cell responses in vivo. This includes insights into the control of early decision-making during T-dependent B-cell differentiation, the affinity maturation and plasma cell differentiation of germinal center B cells, and the identification of EBI2 as a key regulator of B-cell migration and differentiation.

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