The present invention relates to a recognition molecule against Syndecan-4, wherein said recognition molecule binds an epitope contained in an amino acid sequence corresponding to the amino acid sequence between amino acids 93 and 121 of the amino acid sequence shown in SEQ ID NO:1 (Figure 1) for use in the treatment and/or prevention of a pathological medical condition associated with turnover of the extracellular matrix and/or cartilage remodelling in which Syndecan-4 is involved. Said pathological condition is preferably osteoarthritis or rheumatoid arthritis.
