Homeostatic and maturation-associated proliferation in the peripheral B-cell compartment

Menno C. Van Zelm, Mirjam Van Der Burg, Jacques J M Van Dongen

Research output: Contribution to journalReview ArticleResearchpeer-review

18 Citations (Scopus)

Abstract

B lymphocytes contribute to the immune system by the production of antigen-specific antibodies. When naive mature B lymphocytes recognize antigen with their specific Ig receptors, they will undergo clonal proliferation and differentiation, thereby generating a large number of long-lived memory B cells and plasma cells that produce and secrete antigen-specific antibodies. Recently, we generated new insights on the peripheral B-cell compartment in mice and man, supported by the introduction of a novel molecular assay that quantifies the replication history of B lymphocytes. Our data indicate that naive mature B lymphocytes are able to undergo antigen-independent homeostatic proliferation. Furthermore, the extent of proliferation differs substantially between T-cell dependent and T-cell independent B-cell responses. Thus, three unique proliferation stages occur in the peripheral B-cell compartment. Now that we have identified the B-cell subsets that undergo proliferation, it is a challenge to investigate the initiation and regulation of the proliferation processes. To support the understanding of each of the three proliferation stages, we present our view on the impact of the different proliferation stages on B-cell maturation, the potential molecular mechanisms underlying these processes, and the potential implications in human immunological diseases.

Original languageEnglish
Pages (from-to)2890-2895
Number of pages6
JournalCell Cycle
Volume6
Issue number23
Publication statusPublished - 1 Dec 2007
Externally publishedYes

Keywords

  • Autoimmune disease
  • B-cell development
  • B-cell memory
  • CVID
  • Homeostatic proliferation
  • KREC

Cite this