Patent ID: 7112436

Claim:
A fusion polypeptide comprising a first and second polypeptide, wherein the first polypeptide is a cytokine selected from the group consisting of interleukin-6, interleukin-11, or CNTF, or wherein the first polypeptide is a subunit of interleukin-6, interleukin-11 or CNTF, wherein said subunit can bind an interleukin-6, interleukin-11 or CNTF receptor, and the second polypeptide is an interleukin-6, interleukin-11 or CNTF receptor, or subunit thereof of the receptors, and wherein the receptor subunits can bind their respective cytokines, wherein the first and second polypeptides are linked to each other via a polypeptide linker.