Used in biomedical research to detect and quantify human antibodies targeting cartilage antigens in serum or plasma samples. This kit is particularly useful in studying autoimmune joint diseases such as rheumatoid arthritis, where immune responses against cartilage components may contribute to joint damage. Researchers use this assay to investigate disease mechanisms, evaluate patient immune profiles, and assess potential therapeutic interventions. The ELISA format allows for high-throughput screening with reliable sensitivity and specificity, making it a valuable tool in clinical research and laboratory diagnostics.