Animal-free Recombinant Human IL-10 is expressed in human 293 cells as a non-covalent homodimeric glycoprotein with an apparent molecular mass of 17 kDa. This cytokine is produced in a serum-free, chemically defined media. IL-10 is produced by a variety of mammalian cell types which includes T cells, B cells, macrophages, and keratinocytes monocytes. It is an anti-inflammatory cytokine with multiple, pleiotropic effects in inflammation and immunoregulation. Glycosylation contributes to stability in cell growth media and other applications. The cytokine is greater than 95% pure.