"Interleukin-6"[Mesh] OR "interleukin 6" OR plasmacytoma growth factor*[tiab] OR b cell differentiation factor*[tiab] OR b cell stimulatory factor*[tiab] OR "bsf 2"[tiab] OR hepatocyte stimulating factor*[tiab] OR hybridoma growth factor*[tiab] OR "ifn beta 2"[tiab] OR "il 6"[tiab] OR il6[tiab] OR "mgi 2"[tiab] OR myeloid differentiation inducing protein*[tiab]