Autoantibodies to nuclear lamin B in a patient with thrombopenia - PubMed (original) (raw)

PMID: 3297706

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Autoantibodies to nuclear lamin B in a patient with thrombopenia

M N Guilly et al. Eur J Cell Biol. 1987 Apr.

Abstract

We report the characterization of novel nucleus specific autoantibodies in the serum of a patient with systemic lupus erythematosus. Immunofluorescent staining of cycling cells and absorption experiments localized the antigen to the nuclear envelope. Two-dimensional gel electrophoretic analysis of immunoprecipitated nuclear proteins show the antigen to be an acidic polypeptide (IP approximately 5.4) of 68 kDa molecular mass. It has been identified as lamin B, one of the three major nuclear envelope polypeptides of mammalian cells. Antibodies shown to be polyclonal immunoglobulin Gs, were directed against determinant(s) of the protein that have apparently been conserved during evolution. They do not appear to be related to other autoantibodies present in the serum (anti-DNA and anti-platelet). The nuclear specificity shown by these antibodies further demonstrates the antigenicity of proteins related to intermediate filament proteins in patients with autoimmune disorders.

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Autoantibodies to nuclear lamin B in a patient with thrombopenia - PubMed (original) (raw)