Identifiers
HUGO:IL12RB2
Maps_Modules
HMC:AVOIDING_IMMUNE_DESTRUCTION
Innate Immunity / IMMUNOSTIMULATORY_CYTOKINE_PATHWAYS
References
CASCADE:IL12
CASCADE:IL2
NATURAL_KILLER
PMID:15546391
Interleukin (IL)-12 is a heterodimeric cytokine composed of two disulfide-linked subunits, p35 and p40.
This cytokine is produced by a variety cells including monocytes, neutrophils, and B cells, but the major producers of IL-12 are macrophages and dendritic cells (DCs).
The IL-12 receptor (IL-12R) is composed of two subunits termed ??1 and ??2, which are structurally related to the type I cytokine receptor superfamily (44???47). The affinity of IL-12 for either subunit alone is low, but coexpression of both ??1 and ??2 subunits generates human IL-12 high-affinity binding sites. IL-12p40 interacts predominantly with the ??1 subunit, whereas p35 interacts largely with the ??2 subunit.
PMID:10807786
Interleukin-2 enhances the response of natural killer cells to interleukin-12 through up-regulation of the interleukin-12 receptor and STAT4