Luther, Claudia; Adamopoulou, Eleni; Stoeckle, Christina; Brucklacher-Waldert, Verena; Rosenkranz, Daniela; Stoltze, Lars; Lauer, Sigrid; Poeschel, Simone; Melms, Arthur; Tolosa, Eva (2009). Prednisolone treatment induces tolerogenic dendritic cells and a regulatory milieu in myasthenia gravis patients. Journal of immunology, 183(2), pp. 841-8. Bethesda, Md.: American Association of Immunologists 10.4049/jimmunol.0802046
Full text not available from this repository. (Request a copy)FOXP3-expressing naturally occurring CD4(+)CD25(high) T regulatory cells (Treg) are relevant in the control of autoimmunity, and a defect in this cell population has been observed in several human autoimmune diseases. We hypothesized that altered functions of peripheral Treg cells might play a role in the immunopathogenesis of myasthenia gravis, a T cell-dependent autoimmune disease characterized by the presence of pathogenic autoantibodies specific for the nicotinic acetylcholine receptor. We report in this study a significant decrease in the in vitro suppressive function of peripheral Treg cells isolated from myasthenia patients in comparison to those from healthy donors. Interestingly, Treg cells from prednisolone-treated myasthenia gravis patients showed an improved suppressive function compared with untreated patients, suggesting that prednisolone may play a role in the control of the peripheral regulatory network. Indeed, prednisolone treatment prevents LPS-induced maturation of monocyte-derived dendritic cells by hampering the up-regulation of costimulatory molecules and by limiting secretion of IL-12 and IL-23, and enhancing IL-10. In addition, CD4(+) T cells cultured in the presence of such tolerogenic dendritic cells are hyporesponsive and can suppress autologous CD4(+) T cell proliferation. The results shown in this study indicate that prednisolone treatment promotes an environment that favors immune regulation rather than inflammation.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
04 Faculty of Medicine > Pre-clinic Human Medicine > Institute of Pharmacology |
UniBE Contributor: |
Merz, Christina |
ISSN: |
0022-1767 |
Publisher: |
American Association of Immunologists |
Language: |
English |
Submitter: |
Factscience Import |
Date Deposited: |
04 Oct 2013 15:10 |
Last Modified: |
05 Dec 2022 14:21 |
Publisher DOI: |
10.4049/jimmunol.0802046 |
PubMed ID: |
19542375 |
Web of Science ID: |
000267812600008 |
URI: |
https://boris.unibe.ch/id/eprint/30703 (FactScience: 194979) |
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