Send to

Choose Destination
Nat Rev Immunol. 2005 Jul;5(7):521-31.

New IL-12-family members: IL-23 and IL-27, cytokines with divergent functions.

Author information

Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, 3800 Spruce Street, Philadelphia, PA 19104, USA.


Understanding the factors that influence T helper 1 (T(H)1)- and T(H)2-cell responses has been one of the main focuses of immunology for almost 20 years. Whereas the central role of interleukin-12 (IL-12) in the generation of T(H)1 cells has long been appreciated, subsequent studies indicated that IL-23 and IL-27, two cytokines that are closely related to IL-12, also regulate T(H)1-cell responses. However, as discussed in this article, it is now recognized that the ability of IL-23 to stimulate a unique T-cell subset to produce IL-17 has a dominant role in autoimmune inflammation. By contrast, IL-27 has a role in limiting the intensity and duration of adaptive immune responses.

[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Nature Publishing Group
Loading ...
Support Center