Table 1

The IL-17 superfamily: cellular sources, receptors, and major functions

Cytokine
Other names
Cellular source
Receptor
Major functions

IL-17
IL-17A, CTLA-8
T cells (memory)
IL-17R (also known as, IL-17AR)
Inflammation, neutrophil recruitment, cytokine secretion, bone metabolism
IL-17B

Multiple organs
IL-17BR (also known as, IL-17Rh1/Evi27)
Cytokine secretion, inflammation
IL-17C

Unknown
Unknown
Regulation of Th1 cytokines
IL-17D
IL-27
Multiple organs
Unknown
Cytokine secretion
IL-17E
IL-25
Th2
IL-17BR (also known as, IL-17Rh1/Evi27)
Regulation of Th2 cytokines
IL-17F
ML-1
CD4+ T cells and monocytes
IL-17R?
Angiogenesis, cytokine secretion, regulation of Th1 cytokines
HVS13
vIL-17
Herpesvirus saimiri infected cells
IL-17R?
Unknown (not required for cellular transformation)

References and further information on this family can be found in the report by Moseley and coworkers [24]. CTLA, cytotoxic T-lymphocyte associated antigen; IL, interleukin; IL-17R, interleukin-17 receptor; Th, T-helper.

Gaffen Arthritis Res Ther 2004 6:240   doi:10.1186/ar1444