Used in research to quantify levels of MCP-4 (CCL13) in biological samples such as serum, plasma, and cell culture supernatants. Helps in studying inflammatory diseases, allergic responses, and immune system activation. Commonly applied in immunology and biomedical research to understand chemokine involvement in conditions like asthma, atherosclerosis, and autoimmune disorders. Enables high-throughput screening and evaluation of therapeutic agents targeting inflammatory pathways.