Used in biomedical research to quantify levels of Latency-Associated Peptide (LAP) in biological samples such as serum, plasma, or cell culture supernatants. This ELISA kit helps assess the activation status of Transforming Growth Factor-beta (TGF-β), as LAP is released during TGF-β activation and serves as a marker for regulatory T cell activity and immune modulation. It is widely applied in studies related to inflammation, autoimmune diseases, cancer, and fibrosis. The assay enables high-sensitivity detection, supporting both clinical research and drug development efforts targeting the TGF-β signaling pathway.