Department of Immunobiology
300 Cedar Street
The Anlyan Center
P.O. Box 208011
New Haven, CT 06520
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Associate Professor of Immunobiology
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Human B cell tolerance: from primary immunodeficiencies to autoimmune diseases
Autoantibody production is a characteristic of most autoimmune diseases including rheumatoid arthritis (RA), systemic lupus erythematosus (SLE) and type 1 diabetes (T1D). These autoantibodies appear in the serum many years before the onset of clinical disease suggesting an early break in B cell tolerance. We previously established in healthy donors that random V(D)J recombination produce large numbers of autoreactive antibodies. Most developing B cells that express polyreactive antibodies or B cell receptors (BCRs) are silenced in the bone marrow, and additional autoreactive B cells are removed in the periphery. We recently analyzed B cell tolerance in RA patients by testing the specificity of recombinant antibodies cloned from single B cells. RA patients exhibit defective central and peripheral B cell tolerance checkpoints that result in the accumulation of self-reactive mature naïve B cells, likely contributing to the pathogenesis of this disease. Yet the mechanisms that lead to the generation and survival of these autoreactive mature naïve B cells in RA patients are unknown. more...
| Campus Address: | Amistad 10, 131S |
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Yale University School of Medicine PO BOX 208011 New Haven, CT 06520-8011 |
| Phone: | (203) 737-4535 |
| E-mail: | eric.meffre@yale.edu |