Used in research to study macrophage biology and immune regulation. Binds to CSF1 and IL-34, helping investigate signaling pathways involved in monocyte, macrophage, and osteoclast development. Employed in protein-protein interaction studies, receptor-ligand binding assays, and as a detection tool in flow cytometry or ELISA when tagged with Fc. Supports drug development targeting CSF1R in cancer, inflammatory diseases, and bone disorders.