Used in immunological research to study granulocyte-macrophage colony-stimulating factor (GM-CSF) signaling in non-human primate models. Supports the development and differentiation of dendritic cells, granulocytes, and macrophages in vitro. Employed in vaccine studies and cancer immunotherapy research due to its role in enhancing antigen presentation. The hFc tag enables easy detection and purification, and extends half-life in experimental systems. Commonly used in preclinical studies to evaluate therapeutic antibodies and immune modulators targeting the GM-CSF pathway.