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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Reuter, R. Vohr, H. W. Gleichmann, E. Tessars, G. Lührmann, R. |
| Description | Author Affiliation: Reuter R ( Max-Planck-Institut für Molekulare Genetik, Otto-Warburg-Laboratorium, Berlin, Federal Republic of Germany.); |
| Abstract | Autoantibodies to nucleolar components are a common serological feature of patients suffering from scleroderma, a collagen vascular autoimmune disease. While animal models, which spontaneously develop abundant anti-nucleolar antibodies, have not yet been described, high titers of such antibodies may be induced by treating susceptible strains of mice with mercuric chloride. We have identified the nucleolar autoantigen against which the HgCl2-induced IgG autoantibodies from mice of strain B10.S are directed. It is a protein with an apparent molecular mass of 36 kDa and a pI value of approximately 8.6, which is associated with the nucleolar small nuclear RNA U3, and by these criteria must be identical with a polypeptide called fibrillarin. It is striking that scleroderma patients spontaneously produce autoantibodies against the same U3 ribonucleoprotein (RNP). The HgCl2-induced murine and the scleroderma-specific human anti-U3 RNP autoantibodies were indistinguishable in their reactivities toward fibrillarin. They further resemble each other insofar as both recognize epitopes on the 36-kDa protein, which have been highly conserved throughout evolution. Our results provide a basis to investigate at the molecular level whether similar immunoregulatory dysfunctions may lead to the preferential anti-U3 RNP autoantibody production in the animal model and in scleroderma patients. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 1 |
| Volume Number | 86 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1989-02-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Autoantibodies Biosynthesis Mercuric Chloride Pharmacology Ribonucleoproteins Immunology Animals Carcinoma, Ehrlich Tumor Disease Susceptibility Electrophoresis, Gel, Two-Dimensional HeLa Cells Immunoblotting Mice Mice, Inbred Strains Nuclear Proteins Ribonucleoproteins, Small Nuclear Research Support, Non-U.S. Gov't Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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