Abstract
T cells have originally occupied central stage of the debate on the type of lymphocytes governing the pathogenesis of Sjögren’s syndrome (SS). However, B cells has since been substituted for T cells, and insights into their functions have revealed that they accomplish various tasks. Beyond the paradigm that T lymphocytes maintain strict control over B lymphocytes, these latter cells solicit their own help from the former, release a flurry of cytokines, and act as antigen- presenting cells. In SS, excessive of the B cell-activating factor (BAFF) may cause B-cell quantitative anomalies, such as inflation of mature B (Bm)2/Bm2’ cells in the circulation, or accumulation of transitional type 2, marginal zone (MZ) and memory B cells within the exocrine gland infiltrates. These excesses are also associated with B-cell qualitative anomalies, such as the internal synthesis of BAFF, and a default mechanism that promotes the autoantibody production in ectopic germinal centers or MZ equivalents. Thus, SS should rather be conceived as a quintessential model for B cellinduced autoimmunity. Such a view opens novel prospects for treatment, and indeed B cell-ablative therapy has already been shown to be beneficial to these patients.
Keywords: B lymphocyte, Sjogren's syndrome, B cell activating factor, ectopic germinal centers, T cells, pathogenesis, lymphocytes, cytokines, antigen-presenting cells, marginal zone, internal synthesis, MZ equivalents, B cell-ablative therapy, salyvary gland (SG), rheumatoid arthritis (RA).
Current Pharmaceutical Biotechnology
Title:B-Lymphocytes Govern the Pathogenesis of Sjogren's Syndrome
Volume: 13 Issue: 10
Author(s): Pierre Youinou, Alain Saraux and Jacques-Olivier Pers
Affiliation:
Keywords: B lymphocyte, Sjogren's syndrome, B cell activating factor, ectopic germinal centers, T cells, pathogenesis, lymphocytes, cytokines, antigen-presenting cells, marginal zone, internal synthesis, MZ equivalents, B cell-ablative therapy, salyvary gland (SG), rheumatoid arthritis (RA).
Abstract: T cells have originally occupied central stage of the debate on the type of lymphocytes governing the pathogenesis of Sjögren’s syndrome (SS). However, B cells has since been substituted for T cells, and insights into their functions have revealed that they accomplish various tasks. Beyond the paradigm that T lymphocytes maintain strict control over B lymphocytes, these latter cells solicit their own help from the former, release a flurry of cytokines, and act as antigen- presenting cells. In SS, excessive of the B cell-activating factor (BAFF) may cause B-cell quantitative anomalies, such as inflation of mature B (Bm)2/Bm2’ cells in the circulation, or accumulation of transitional type 2, marginal zone (MZ) and memory B cells within the exocrine gland infiltrates. These excesses are also associated with B-cell qualitative anomalies, such as the internal synthesis of BAFF, and a default mechanism that promotes the autoantibody production in ectopic germinal centers or MZ equivalents. Thus, SS should rather be conceived as a quintessential model for B cellinduced autoimmunity. Such a view opens novel prospects for treatment, and indeed B cell-ablative therapy has already been shown to be beneficial to these patients.
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Cite this article as:
Youinou Pierre, Saraux Alain and Pers Jacques-Olivier, B-Lymphocytes Govern the Pathogenesis of Sjogren's Syndrome, Current Pharmaceutical Biotechnology 2012; 13 (10) . https://dx.doi.org/10.2174/138920112802273100
DOI https://dx.doi.org/10.2174/138920112802273100 |
Print ISSN 1389-2010 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4316 |
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