Used in research to quantify fractalkine (CX3CL1) levels in biological samples such as serum, plasma, and cell culture supernatants. Enables study of neuroinflammatory processes, immune cell recruitment, and neuronal-glial interactions. Widely applied in neuroscience and immunology research to investigate conditions like Alzheimer's disease, Parkinson's disease, multiple sclerosis, and chronic pain. Supports drug development and biomarker discovery by providing a reliable method to assess fractalkine expression changes in response to treatments or disease states.