Introduction
Interleukin 27 (IL-27) is encoded by the IL-27 gene in humans. The protein encoded by this gene is one of the subunits of a heterodimeric cytokine complex. It is generally accepted that the main cellular source of IL-27 is the myeloid cell population, including macrophages, inflammatory monocytes, microglia, and dendritic cells (DCs), although plasma cells, endothelial cells, and epithelial cells express IL-27. This protein is related to interleukin 12A (IL12A). It interacts with Epstein-Barr virus induced gene 3 (EBI3), a protein similar to interleukin 12B (IL12B), and forms a complex that has been shown to drive rapid expansion of naive but not memory CD4(+) T cells. The complex is also found to synergize strongly with interleukin 12 to trigger interferon gamma (IFNG) production of naive CD4(+) T cells. The biological effects of this cytokine are mediated by the class I cytokine receptor (WSX1/TCRR). [provided by RefSeq, Jul 2008]

Direction of Drugs Discovery
• IL-27 Inhibitor
• Developing New Clinical Effects on IL-27 from Existing Drugs

Drugs
• IL-27 Inhibitor- SRF388