Scientific publications

Association between peripheral IFN-gamma producing CD8+ T-cells and disability score in relapsing-remitting multiple sclerosis.

Jorge Sepulcre (a), Cristina Moreno [SP] (b) and Purificación de Castro (a)
(a) Department of Neurology, University Clinic of Navarra, University of Navarra, Spain
(b) Department of Immunology, University Clinic of Navarra, University of Navarra, Spain

Magazine: Cytokine

Date: Oct 21, 2005

Immunology [SP] Neurology [SP]

A large body of evidence supports the involvement of the immune system in the pathogenesis of multiple sclerosis (MS).

Nevertheless, how the peripheral T-cells phenotypes are associated with factors such as the disability score, the effects of immunomodulatory treatments, or the activation period is poorly understood. In this study, we have centered our attention on the presence of IFN-gamma and IL-4 producing CD4+ and CD8+ T-cells in the peripheral blood of 58 relapsing-remitting MS (RRMS) patients, 48 that were stable and 10 who were in relapse period, and 30 healthy controls (HC). Our results support the existence of an independent association between the percentage of IFN-gamma producing CD8+ lymphocytes and the increased levels of disability score.

Furthermore, the number of IFN-gamma producing CD8+ lymphocytes and the disability score were not correlated in patients treated with interferon-beta, evidence of its possible benefits in combating a pro-inflammatory profile. Finally, we compared the T-cell populations in RRMS patients in the stable or active period, and we found a significant decrease of IFN-gamma producing CD4+ lymphocytes in active patients. In conclusion our study supports the hypothesis that different peripheral blood T-cell phenotypes are associated with disability score or active period of the disease.

CITATION  Cytokine. 2005 Oct 21;32(2):111-6

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