| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
* Laboratory of Epidermis Differentiation and Rheumatoid Autoimmunity, Unité Mixte de Recherche 5165 Centre National de la Recherche Scientifique-Toulouse III University, Institut Fédératif de Recherche 30 (Centre National de la Recherche Scientifique-Institut National de la Santé et de la Recherche Médicale-Université Paul Sabatier-Centre Hospitalier Universitaire de Toulouse), Toulouse, France; and
Department of Rheumatology, Ghent University Hospital, Ghent University, Ghent, Belgium
Autoantibodies to deiminated (citrullinated) proteins are the most specific serological markers of rheumatoid arthritis (RA). Deimination is critical in generating the peptidic epitopes they recognize. In the synovial tissue (ST), deiminated forms of the 
- and 
-chains of fibrin are their major autoantigenic targets (anti-human fibrin(ogen) autoantibodies (AhFibA)). We investigated whether the presence of deiminated fibrin in the ST was specific for RA, because this could explain why AhFibA are RA specific. In 13 patients with RA and 19 patients with various other rheumatological disorders, knee ST biopsies were collected in macroscopically inflamed areas identified under arthroscopy. Synovitis was histopathologically confirmed in all of the biopsies. By immunoblotting, using antisera to fibrin, Abs to citrullyl residues, and AhFibA purified from RA sera, deiminated fibrin was evidenced in ST extracts from all of the patients. Moreover, variations in the degree of fibrin deimination were observed that were not related to the disease. Immunohistochemical analysis, using Abs to citrullyl residues and an antiserum to fibrin on adjacent serial sections of ST, confirmed the results because deiminated proteins colocalized with fibrin in RA as well as in control patients. Therefore, fibrin deimination in the ST is a general phenomenon associated to any synovitis, which does not necessarily induce a B autoimmune response with production of AhFibA.
This article has been cited by other articles:
|
|
 |
|
  T. Cantaert, J. Kolln, T. Timmer, T. C. van der Pouw Kraan, B. Vandooren, R. M. Thurlings, J. D. Canete, A. I. Catrina, T. Out, C. L. Verweij, et al. B Lymphocyte Autoimmunity in Rheumatoid Synovitis Is Independent of Ectopic Lymphoid Neogenesis J. Immunol., July 1, 2008; 181(1): 785 - 794. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 K. Tilleman, K. Van Steendam, T. Cantaert, F. De Keyser, D. Elewaut, and D. Deforce Synovial detection and autoantibody reactivity of processed citrullinated isoforms of vimentin in inflammatory arthritides Rheumatology, May 1, 2008; 47(5): 597 - 604. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 A. SUZUKI, R. YAMADA, and K. YAMAMOTO Citrullination by Peptidylarginine Deiminase in Rheumatoid Arthritis Ann. N.Y. Acad. Sci., June 1, 2007; 1108(1): 323 - 339. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. Bongartz, T. Cantaert, S. R. Atkins, P. Harle, J. L. Myers, C. Turesson, J. H. Ryu, D. Baeten, and E. L. Matteson Citrullination in extra-articular manifestations of rheumatoid arthritis Rheumatology, January 1, 2007; 46(1): 70 - 75. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 D Makrygiannakis, E af Klint, I E Lundberg, R Lofberg, A-K Ulfgren, L Klareskog, and A I Catrina Citrullination is an inflammation-dependent process Ann Rheum Dis, September 1, 2006; 65(9): 1219 - 1222. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
Y Takizawa, A Suzuki, T Sawada, M Ohsaka, T Inoue, R Yamada, and K Yamamoto Citrullinated fibrinogen detected as a soluble citrullinated autoantigen in rheumatoid arthritis synovial fluids Ann Rheum Dis, August 1, 2006; 65(8): 1013 - 1020. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. J. W. Zendman, W. J. van Venrooij, and G. J. M. Pruijn Use and significance of anti-CCP autoantibodies in rheumatoid arthritis Rheumatology, January 1, 2006; 45(1): 20 - 25. [Full Text] [PDF]
|
|
|
|
|
|
F. van Gaalen, A. Ioan-Facsinay, T. W. J. Huizinga, and R. E. M. Toes The Devil in the Details: The Emerging Role of Anticitrulline Autoimmunity in Rheumatoid Arthritis J. Immunol., November 1, 2005; 175(9): 5575 - 5580. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T Cantaert, P Coucke, L De Rycke, E M Veys, F De Keyser, and D Baeten Functional haplotypes of PADI4: relevance for rheumatoid arthritis specific synovial intracellular citrullinated proteins and anticitrullinated protein antibodies Ann Rheum Dis, September 1, 2005; 64(9): 1316 - 1320. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
