OSM protein is a multifunctional growth regulator that effectively inhibits the proliferation of tumor cell lines and regulates the production of cytokines including IL-6 G-CSF and GM-CSF produced by endothelial cells It specifically binds to type II OSM receptors forming a heterodimer composed of OSMR and IL6ST OSM Protein Mouse (HEK293 His) is the recombinant mouse-derived OSM protein expressed by HEK293 with C-His labeled tag