Chemokines in osteoclast differentiation

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Chemokines are small molecules that are released by a number of cell types, particularly monocytes, when inflammation occurs. Chronic inflammatory disease is associated with severe bone erosion and loss of bone quality. Surprisingly, chemokines control osteoclast development as well as macrophage activation; even if the osteoclast has formed, blocking chemokine signalling prevents bone resorption. Chemokines are a new and exciting target to control osteoclast formation.