Used in immunological research to study IL-6 signaling pathways in non-human primate models. Helps in the development and testing of anti-inflammatory therapeutics targeting the IL-6 receptor. Employed in binding assays and functional studies to evaluate drug candidates for autoimmune diseases such as rheumatoid arthritis and cytokine release syndrome. The Fc tag enables easy detection and purification, and supports use in cell-based assays and animal models relevant to human disease.