Phytohemagglutinin (PHA)-derived T lymphoblasts or T cell clones from patients genetically deficient in IL-12R g 1 (IL-12R g 1 -/-) or IFN-+ R1 (IFN-+ R1 -/-) produced two-to threefold reduced IFN-+ levels compared to the corresponding cells from healthy individuals after anti-CD3 and PMA stimulatio
Antigen-stimulated IL-4, IL-13 and IFN-γ production by human T cells at a single-cell level
✍ Scribed by Bauke A. de Boer; Yvonne E. Fillié; Yvonne C. M. Kruize; Maria Yazdanbakhsh
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 145 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0014-2980
No coin nor oath required. For personal study only.
✦ Synopsis
To understand the intricate balance and the coordinate expression of the Th1 and Th2 cytokines following a natural mode of T cell triggering, antigen-stimulated IL-4, IL-13 and IFN-+ production was studied in primary peripheral blood mononuclear cell cultures at a single-cell level. Cells from filariasis patients who respond to parasite antigen by producing not only IFN-+ but also IL-4 and IL-13 were stimulated with Brugia malayi adult worm antigen and analyzed for co-expression of cytokines by intracellular staining. IL-4 and IL-13 were frequently co-expressed (54 % of IL-4 + cells stained for IL-13 and 29 % of IL-13 + cells expressed IL-4 at all time points), whereas IFN-+ expression was totally segregated from both IL-4 and IL-13. These data indicate that in human peripheral T cells the co-expression of the dominant Th1 and Th2 cytokines within a single cell is a rare event and that IL-13 is clearly more frequently associated with a Th2 than a Th1 type response in primary T cell cultures.
📜 SIMILAR VOLUMES
Background: Interferon gamma is a cytokine that plays a central role in immunity, and is physiologically secreted by T and NK cells under appropriate stimuli during the immune response. By means of flow cytometry, we performed a single cell analysis of interferon gamma producing NK cells and their s