Used to quantitatively measure mouse PD-L1 (programmed death-ligand 1) levels in biological samples such as serum, plasma, cell culture supernatants, and tissue lysates. This ELISA kit is widely applied in immunology and cancer research to study immune checkpoint pathways, as PD-L1 plays a key role in suppressing T-cell activation and enabling tumor immune evasion. Researchers use this tool to evaluate PD-L1 expression under various experimental conditions, including drug treatments, gene knockdown, or immune stimulation. It supports studies on autoimmune diseases, infectious diseases, and development of immunotherapies by providing accurate and reliable detection of soluble or shed forms of mouse PD-L1 in preclinical models.