Used in immunological research to quantify rat intercellular adhesion molecule 3 (ICAM-3/CD50) levels in biological samples such as serum, plasma, or cell culture supernatants. This ELISA kit is particularly useful for studying immune cell interactions, inflammation processes, and leukocyte adhesion mechanisms in rat models. It supports research in autoimmune diseases, infectious diseases, and immune system regulation by providing a sensitive and specific method to measure ICAM-3 expression, which plays a role in the initial stages of immune response and cell-to-cell signaling.