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Review
. 1992 May;18(2):359-76.

Anti-La antibodies

E W St Clair  1
Affiliations
  • PMID: 1626074
Review

Anti-La antibodies

E W St Clair. Rheum Dis Clin North Am. 1992 May.

Abstract

Anti-La antibodies usually occur in sera with anti-Ro antibodies and represent important serologic markers of Sjögren's syndrome and neonatal lupus erythematosus. In addition to their diagnostic and prognostic significance, anti-La antibodies have proved valuable reagents for molecularly characterizing its antigenic target, which is a 47 kD ribonucleoprotein located in the nucleus and cytoplasm of mammalian cells. The isotype distribution and fine specificity of the anti-La response as well as its associations with HLA-DR and DQ loci suggest that these autoantibodies arise by a T cell-dependent, antigen-driven mechanism. Further insights into the mechanisms of anti-La production in humans may be gained by studying experimental animal models that develop these antibodies spontaneously or through induction by various immunization protocols.

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