Activated B cells in autoimmune diseases: the case for a regulatory role.

Abstract

B lymphocytes contribute to immunity through organogenesis of secondary lymphoid organs, presentation of antigen to T cells, production of antibodies, and secretion of cytokines. Their roles in autoimmune diseases are complex. Clinical trials have shown that depleting B cells can significantly ameliorate such diseases, underlining the contributions of B cells to pathogenesis. Conversely, B-cell depletion can lead to exacerbation of symptoms in some patients. In mice, B cells can offer protection from chronic autoimmune pathologies. It is important to understand the mechanisms responsible for the distinct roles of B cells in autoimmune diseases, and investigation of these processes could highlight new therapeutic strategies. Here, we review recent progress in our understanding of the suppressive functions of activated B cells in mice, as well as the promising potential of B cells for use as cell-based therapy for experimental autoimmune diseases, and, finally, discuss the possibility of translating this cellular approach to treat human autoimmune diseases.

• Authors: Stephen M Anderton, Simon Fillatreau
• Journal: Nature clinical practice. Rheumatology (Nat Clin Pract Rheumatol) Vol. 4 Issue 12 Pg. 657-66 (Dec 2008) ISSN: 1745-8390 [Electronic] United States
• PMID: 19037227 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't, Review)

Topics

• Animals
• Autoimmune Diseases (immunology, therapy)
• B-Lymphocytes (immunology)
• Cell- and Tissue-Based Therapy
• Humans
• Immunosuppression Therapy
• Lymphocyte Activation
• Mice