First Author | van Mierlo GJ | Year | 2008 |
Journal | J Immunol | Volume | 180 |
Issue | 5 | Pages | 2747-51 |
PubMed ID | 18292492 | Mgi Jnum | J:131732 |
Mgi Id | MGI:3774254 | Doi | 10.4049/jimmunol.180.5.2747 |
Citation | van Mierlo GJ, et al. (2008) Cutting Edge: TNFR-Shedding by CD4+CD25+ Regulatory T Cells Inhibits the Induction of Inflammatory Mediators. J Immunol 180(5):2747-51 |
abstractText | CD4(+)CD25(+) regulatory T (Treg) cells play an essential role in maintaining tolerance to self and nonself. In several models of T cell-mediated (auto) immunity, Treg cells exert protective effects by the inhibition of pathogenic T cell responses. In addition, Treg cells can modulate T cell-independent inflammation. We now show that CD4(+)CD25(+) Treg cells are able to shed large amounts of TNFRII. This is paralleled by their ability to inhibit the action of TNF-alpha both in vitro and in vivo. In vivo, Treg cells suppressed IL-6 production in response to LPS injection in mice. In contrast, Treg cells from TNFRII-deficient mice were unable to do so despite their unhampered capacity to suppress T cell proliferation in a conventional in vitro suppression assay. Thus, shedding of TNFRII represents a novel mechanism by which Treg cells can inhibit the action of TNF, a pivotal cytokine driving inflammation. |