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Publication Detail
Enhanced transcription of the gene encoding the smn autoantigen in patients with systemic lupus erythematosus does not result in enhanced levels of the SMN protein
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Journal Article
  • Authors:
    Huntriss JD, Twomey BM, Isenberg DA, Latchman DS
  • Publication date:
    01/01/1994
  • Pagination:
    81, 87
  • Journal:
    Autoimmunity
  • Volume:
    19
  • Issue:
    2
  • Status:
    Published
  • Print ISSN:
    0891-6934
Abstract
The SmN, protein is closely related to the constitutively expressed SmB and SmB' autoantigens and can also act as a target for human autoimmune sera. In contrast to the single gene encoding SmB and SmB' which is expressed in all tissues, the distinct gene encoding SmN is expressed at high levels only in brain and heart tissue. We show that the SmN gene is transcribed at significantly elevated levels in peripheral blood mononuclear cells (PBMCs) from SLE patients compared to normal controls. In contrast no significant elevation in transcription of the genes encoding SmB/B' or the Ul-associatcd 70kD RNP autoantigen is observed in these patients. The elevation in SmN gene transcription in patient PBMCs does not result however, in enhanced levels of the SmN protein in the PBMCs of these patients. The significance of transcriptional and post-transcriptional processes in regulating the expression in SLE patients of SmN and other autoantigens is discussed. © 1994 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted.
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