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Nat Med. 2007 May;13(5):543-51.

TLR-dependent and TLR-independent pathways of type I interferon induction in systemic autoimmunity.

Author information

1
The Scripps Research Institute, Department of Immunology, La Jolla, California 93037, USA.

Abstract

We formulate a two-phase paradigm of autoimmunity associated with systemic lupus erythematosus, the archetypal autoimmune disease. The initial Toll-like receptor (TLR)-independent phase is mediated by dendritic cell uptake of apoptotic cell debris and associated nucleic acids, whereas the subsequent TLR-dependent phase serves an amplification function and is mediated by uptake of TLR ligands derived from self-antigens (principally nucleic acids) complexed with autoantibodies. Both phases depend on elaboration of type I interferons (IFNs), and therapeutic interruption of induction or activity of these cytokines in predisposed individuals might have a substantial mitigating effect in lupus and other autoimmune diseases.

PMID:
17479100
DOI:
10.1038/nm1590
[Indexed for MEDLINE]

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