| Autor: |
Nolte-'t Hoen EN; Department of Biochemistry and Cell Biology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 2, 3584CM Utrecht, The Netherlands., Boot EP, Wagenaar-Hilbers JP, van Bilsen JH, Arkesteijn GJ, Storm G, Everse LA, van Eden W, Wauben MH |
| Jazyk: |
angličtina |
| Zdroj: |
Journal of leukocyte biology [J Leukoc Biol] 2008 Jan; Vol. 83 (1), pp. 112-21. Date of Electronic Publication: 2007 Oct 10. |
| DOI: |
10.1189/jlb.0607436 |
| Abstrakt: |
Major problems in the analysis of CD4+ effector cell and regulatory T cell (Treg) populations in an activated immune system are caused by the facts that both cell types can express CD25 and that the discriminatory marker forkhead box p3 can only be analyzed in nonviable (permeabilized) cells. Here, we show that CD134 (OX40) can be used as a discriminatory marker combined with CD25 to isolate and characterize viable CD4+ effector cells and Tregs. Before and during adjuvant arthritis in rats, coexpression of CD134 and CD25 identified activated Tregs consistently, as these T cells proliferated poorly to disease-associated antigens and were suppressive in vitro and in vivo. Depending on the time of isolation and location, CD4+ T cell populations expressing CD134 or CD25 contained effector/memory T cells. Analysis of the function, phenotype, and amount of the CD4+ T cell subsets in different lymph node stations revealed spatiotemporal differences in effector cell and Treg compartments during experimental arthritis. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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