Used in biomedical research to quantify levels of soluble PECAM-1 (CD31) in biological samples such as serum, plasma, or cell culture supernatants. This ELISA kit helps study endothelial cell activation, inflammation, and vascular integrity. It is widely applied in research related to atherosclerosis, ischemia-reperfusion injury, sepsis, and cancer metastasis where endothelial dysfunction and leukocyte migration play key roles. The assay supports investigation of angiogenesis and immune cell trafficking by measuring PECAM-1, a critical molecule involved in cell adhesion and transmigration across endothelial barriers.