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Th2 cells are less susceptible than Th1 cells to the suppressive activity of CD25+ regulatory thymocytes because of their responsiveness to different cytokines
Open accessAbstract
T-cell clones generated from both CD4+CD25+ and CD8+CD25+ human thymocytes were assessed for their ability to suppress the proliferative response to allogeneic stimulation of type 1 T-helper (Th1) or type 2 T-helper (Th2) clones derived from autologous CD4+CD25- thymocytes. Both CD4+ and CD8+ T-regulatory (Treg) cells completely suppressed the proliferation of Th1 clones but exhibited significantly lower suppressive activity on the proliferation of Th2 clones. The partial suppressive effect on Th2 cells was further reduced by the addition in culture of interleukin-4 (IL-4), whereas it was increased in the presence of an anti–IL-4 monoclonal antibody (mAb). The suppressive activity on Th2 clones was also completely inhibited by the addition of IL-7, IL-9, and IL-15 but not of IL-2, whereas the suppressive effect on Th1 clones was only reverted by the addition of IL-15. Of note, Th2 clones expressed significantly higher amounts of mRNA for IL-4 receptor (IL-4R) and IL-9R α chains than Th1 clones, whereas the expression of mRNA for IL-2R, IL-7R, and IL-15R α chains was comparable. Taken together, these findings demonstrate that Th2 cells have a lower susceptibility than Th1 cells to the suppressive activity of human CD25+ regulatory thymocytes, because they are able to produce, and to respond to, growth factors distinct from IL-2, such as IL-4 and IL-9. (Blood. 2004; 103:3117-3121)
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Cites
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Metadata
- Authors
- Cosmi, L., Liotta, F., Angeli, R., Mazzinghi, B., Santarlasci, V., Manetti, R., Lasagni, L., Vanini, V., Romagnani, P., Maggi, E., Annunziato, F., & Romagnani, S.
- Venue
- Blood
- Publisher
- American Society of Hematology
- Published
- 2004-04-15
- Volume
- 103
- Issue
- 8
- Pages
- 3117-3121
- ISSN
- 0006-4971 (ISSN-L)
- 1528-0020
- OpenAlex
- W2162336293
- Cited by
- 167
- References
- 2
- FWCI
- 4.78
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Cosmi, L., Liotta, F., Angeli, R., Mazzinghi, B., Santarlasci, V., Manetti, R., Lasagni, L., Vanini, V., Romagnani, P., Maggi, E., Annunziato, F., & Romagnani, S. (2004). Th2 cells are less susceptible than Th1 cells to the suppressive activity of CD25+ regulatory thymocytes because of their responsiveness to different cytokines. Blood. https://doi.org/10.1182/blood-2003-09-3302
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