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Migration of T-cell subsets in multiple sclerosis and the effect of interferon-1a

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Abstract:

Dressel A, Mirowska-Guzel D, Gerlach C, Weber F. Migration of T-cell subsets in multiple sclerosis and the effect of interferon-1a

Acta Neurol Scand: 116: 164–168.

© 2007 The Authors Journal compilation © 2007 Blackwell Munksgaard. Objectives – 

Migration of inflammatory cells across the blood–brain barrier is a central event in the formation of multiple sclerosis (MS) lesions and is known to be enhanced in MS patients. This study investigates the migration of CD4+ and CD8+ T-cell subsets and the effects of interferon-β1a (IFN-β1a) treatment on migration and matrix metalloproteinase-9 (MMP-9) production of these T-cell subsets. Materials and methods – 

An ex vivo transwell system was established to compare the migratory behaviour of lymphocytes isolated from normal controls and untreated MS patients. In addition, MS patients were investigated longitudinally after initiation of IFN-β1a treatment. Results – 

Migration of CD4+ T cells (P < 0.05), but not of CD8+ T cells, was enhanced in untreated MS patients compared with controls and was normalized by treatment with IFN-β1a. In addition, IFN-β1a treatment reduced MMP-9 production of CD4+ but not CD8+ T cells. Conclusion – 

Our results indicate that CD4+ T cells, but not CD8+ T cells, contribute to the enhanced ex vivo migration observed in MS.

Keywords: CD4+ T cells; CD8+ T cells; T cells; interferon-β; lymphocytes; migration; multiple sclerosis

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1600-0404.2007.00829.x

Affiliations: 1: Department of Neurology, University of Greifswald, Greifswald, Germany 2: Section of Neurology, Max-Planck-Institute of Psychiatry, Munich, Germany

Publication date: September 1, 2007

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