Used in biological research to quantify soluble FAS (sFAS) levels in rabbit samples, this ELISA kit helps study apoptosis regulation in immune cells and various disease models. It is particularly useful in investigating autoimmune diseases, cancer progression, and viral infections where dysregulation of cell death pathways occurs. Researchers use it to assess how experimental treatments influence apoptotic activity by measuring changes in sFAS concentration in serum, plasma, or cell culture supernatants. The kit enables high-throughput, sensitive detection, supporting studies in immunology, oncology, and veterinary medicine.