Used in immunological research to study the regulation of immune responses, inflammation, and cell signaling pathways in non-human primate models. The Fc tag enables easy detection and purification, making it valuable for assays such as ELISA, flow cytometry, and protein interaction studies. It is also employed in developing and testing therapeutic antibodies and anti-inflammatory drugs where IL-6 pathway modulation is involved. Due to its relevance in primate biology, it serves as a critical tool for preclinical studies aiming to translate findings to human health.