Used to measure levels of human Macrophage Colony-Stimulating Factor (M-CSF) in biological samples such as serum, plasma, or cell culture supernatants. This assay is widely applied in research settings to study immune system regulation, inflammation, and monocyte/macrophage-related diseases. It helps in understanding conditions like rheumatoid arthritis, osteoporosis, and certain cancers where M-CSF plays a role in disease progression. The kit enables quantitative analysis, supporting both clinical research and drug development efforts focused on macrophage activation and differentiation.