Used in biomedical research to quantify soluble platelet endothelial cell adhesion molecule-1 (sPECAM-1) levels in biological samples such as serum, plasma, or cell culture supernatants. It plays a key role in studying endothelial cell activation and vascular inflammation. Commonly applied in research on atherosclerosis, sepsis, cancer angiogenesis, and autoimmune diseases. The kit enables high-throughput analysis with high specificity and sensitivity, supporting both clinical and preclinical investigations into vascular integrity and immune cell migration.