The present invention disclosed the expression of CXCL6 by cells which are
able to form stable cartilage. The invention describes the use of these
cells and of CXCL6 to promote cartilage (and underlying bone) formation
e.g. in the repair of cartilage or osteochondral defects. The invention
further describes the use of chemokines in the modulation of progenitor
cell differentiation.