Used to measure progranulin levels in human biological samples such as serum, plasma, or cell culture supernatants. It is widely applied in research on neurodegenerative diseases, particularly frontotemporal dementia, where progranulin deficiency plays a key role. The kit helps in studying inflammation, tissue repair, and cancer progression due to progranulin's involvement in cell growth and immune regulation. It is also used in clinical research to evaluate therapeutic responses in patients with progranulin-related disorders.