Macrophage colony-stimulating factor

Macrophage colony-stimulating factor (M-CSF) is a protein in the body that encourages the production and growth of macrophages—white blood cells essential for immune defense. It helps stimulate the bone marrow to produce these cells and guides their development, differentiation, and survival. Macrophages play a vital role in detecting, engulfing, and destroying pathogens like bacteria and viruses, as well as removing dead or damaged cells. By regulating macrophage levels, M-CSF supports immune responses and tissue health, making it an important factor in maintaining overall immune system function and fighting infections.