The influence of methylprednisolone on the ability of CD4+CD95+HLA-DR+ T-cells to produce proinflammatory medators in cultures of TCR-activated CD3+CD45RO+ T-lymphocytes from patients with rheumatoid arthritis

   
Todosenko N.M.1, Khaziakhmatova O.G.1, Yurova K.A.1, Malinina I.P.2, Litvinova L.S.1

1. Immanuel Kant Baltic Federal University
2. Department of Rheumatology Regional Clinical Hospital, Kaliningrad, Russia
Section: Experimental Study
DOI: 10.18097/PBMC20176303255      PubMed Id: 28781259
Year: 2017  Volume: 63  Issue: 3  Pages: 255-265
The effect of different concentrations of the glucocorticoid (GC) methylprednisolone (MP) on CD4+CD95+HLA-DR+ T-cells and their ability to produce proinflammatory mediators in cultures of TCR-stimulated CD3+CD45RO+ T-lymphocytes in the in vitro system was investigated. T cells were obtained from healthy donors and patients with rheumatoid arthritis (RA).Under conditions of TCR-activation, MP increased the number of CD4+HLA-DR+CD95+ cells in CD3+CD45RO+ cultures obtained from RA patients and did not change their content in the control group. In general, MP decreased production of proinflammatory factors (IFN-, IL-2, IL-17, IL-21 and TNF-) by TCR-activated CD3+CD45RO+ cells from healthy donors and RA, consistent with the overall immunosuppressive mechanism of GC action. The correlation between CD4+CD45RO+HLA-DR+CD95+ T-cell contents and parameters reflecting production of proinflammatory mediators (IL-17, IL-21 and TNF-) in RA patients indicates maintenance of the pro-inflammatory potential of this T-cell population exposed to GC action. We suggest that relative resistance of CD4+CD45RO+CD95+HLA-DR+ T-cells of RA patients to the suppressor effect of GC leads to maintenance and even enhancement in the functional capacities of autoreactive cells in the pathogenesis of RA.
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Keywords: memory T cell, rheumatoid arthritis, glucocorticoid hormones, CD95, HLA-DR
Citation:

Todosenko, N. M., Khaziakhmatova, O. G., Yurova, K. A., Malinina, I. P., Litvinova, L. S. (2017). The influence of methylprednisolone on the ability of CD4+CD95+HLA-DR+ T-cells to produce proinflammatory medators in cultures of TCR-activated CD3+CD45RO+ T-lymphocytes from patients with rheumatoid arthritis. Biomeditsinskaya khimiya, 63(3), 255-265.
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