BackgroundInterleukin-28B, also known as Cytokine Zcyto22, Interferon lambda-3, Interferon lambda-4, IFNL3, IFNL4, ZCYTO22 and IL28B, is a secreted cytokine which belongs to the IL-28/IL-29 family. IL-28 has also been shown to play a role in the adaptive immune response. IL28B has immunomodulatory activity and up-regulates MHC class I antigen expression. IL28B displays potent antiviral activity and antitumor activity. In addition, IL28B is a ligand for the heterodimeric class II cytokine receptor composed of IL10RB and IL28RA. The ligand/receptor complex seems to signal through the Jak-STAT pathway.
FormulationLyophilized from a 0.2 μm filtered solution of 20mM PB,150mM NaCl,1mM EDTA,pH7.4.
ALTnamesInterleukin-28B, IL-28B, Cytokine Zcyto22, Interferon Lambda-3, IFN-Lambda-3, Interferon Lambda-4, IFN-Lambda-4, Interleukin-28C, IL-28C, IL28B, IFNL3, IFNL4, IL28C, ZCYTO22