ORBi: VanderBorght Ann - Dynamic T cell receptor clonotype changes in synovial tissue of patients with early rheumatoid arthritis: effects of treatment with cyclosporin A (Neoral)

Reference : Dynamic T cell receptor clonotype changes in synovial tissue of patients with early rheu...


	Document type :	Scientific journals : Article
	Discipline(s) :	Human health sciences : Rheumatology
	To cite this reference:	http://hdl.handle.net/2268/94571

Title :	Dynamic T cell receptor clonotype changes in synovial tissue of patients with early rheumatoid arthritis: effects of treatment with cyclosporin A (Neoral)
Language :	English
Author, co-author :	VanderBorght, Ann [ > > ]
	De Keyser, Filip [ > > ]
	Geusens, Piet [ > > ]
	De Backer, Marc [ > > ]
	Malaise, Michel [Université de Liège - ULg > Département des sciences cliniques > Rhumatologie >]
	Baeten, Dominique [ > > ]
	Van den Bosch, Filip [ > > ]
	Veys, Eric M [ > > ]
	Raus, Jef [ > > ]
	Stinissen, Piet [ > > ]
Publication date :	2002
Journal title :	Journal of Rheumatology
Publisher :	Journal of Rheumatology Publishing Company
Volume :	29
Issue/season :	3
Pages :	416-426
Audience :	International
ISSN :	0315-162X
City :	Toronto
Country :	Canada
Keywords :	[en] Antirheumatic Agents ; Complementarity Determining Regions ; Cyclosporine
Abstract :	[en] OBJECTIVE: To study T cell receptor (TCR) repertoire changes in synovial membrane over a 16 week period in patients with early rheumatoid arthritis (RA); and to study the influence of cyclosporin A (CSA) on TCR repertoire in a subgroup of these patients. METHODS: Synovial tissue biopsies and paired blood samples were obtained from 12 patients with early RA at 2 time points. Seven patients were treated with CSA (Neoral-Sandimmun, 3 mg/kg/day) and 5 patients with placebo for 16 weeks. TCR V gene repertoires were analyzed by semiquantitative PCR-ELISA. CDR3 spectratyping and sequence analysis was used to compare TCR clonotype distributions. RESULTS: TCR-specific mRNA was detected in all synovial tissue biopsies at the first sampling, but in only 8/12 biopsies 16 weeks later (4/7 CSA group, 4/5 placebo group). Overrepresented TCR BV genes were found in biopsies of 10/12 patients at the first time point, and in 7/12 patients after 16 weeks (3/7 CSA, 4/5 placebo). CDR3 sequence analysis revealed dynamic repertoire changes with only a few persisting clonotypes in the synovial tissue of placebo controls. Persisting T cell clonotypes were more frequently found in the synovial tissue of CSA treated patients compared to the placebo group. CONCLUSION: These data suggest a dynamic process of T cell recruitment in the joints of RA patients. This process, possibly due to activation and subsequent infiltration of new T cell clones, apparently is influenced by CSA treatment. Synovial tissue T cells were no longer detected after 16 weeks' CSA treatment in 3 patients. In the other CSA treated patients, new T cell clones infiltrated, while other clones were persistently represented in the joints. These data may have important consequences for the design of T cell targeted therapies for RA.
Target :	Researchers ; Professionals
Permalink :	http://hdl.handle.net/2268/94571

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