Defective B cell tolerance checkpoints in systemic lupus erythematosus Academic Article uri icon

Overview

MeSH Major

  • B-Lymphocytes
  • Immune Tolerance
  • Lupus Erythematosus, Systemic

abstract

  • A cardinal feature of systemic lupus erythematosus (SLE) is the development of autoantibodies. The first autoantibodies described in patients with SLE were those specific for nuclei and DNA, but subsequent work has shown that individuals with this disease produce a panoply of different autoantibodies. Thus, one of the constant features of SLE is a profound breakdown in tolerance in the antibody system. The appearance of self-reactive antibodies in SLE precedes clinical disease, but where in the B cell pathway tolerance is first broken has not been defined. In healthy humans, autoantibodies are removed from the B cell repertoire in two discrete early checkpoints in B cell development. We found these checkpoints to be defective in three adolescent patients with SLE. 25-50% of the mature naive B cells in SLE patients produce self-reactive antibodies even before they participate in immune responses as compared with 5-20% in controls. We conclude that SLE is associated with abnormal early B cell tolerance.

publication date

  • March 7, 2005

Research

keywords

  • Academic Article

Identity

Language

  • eng

PubMed Central ID

  • PMC2212839

Digital Object Identifier (DOI)

  • 10.1084/jem.20042251

PubMed ID

  • 15738055

Additional Document Info

start page

  • 703

end page

  • 11

volume

  • 201

number

  • 5