The catabolic pathway mediated by Toll‐like receptors in human osteoarthritic chondrocytes

We found that TLRs are increased in OA cartilage lesions. TLR-2 and TLR-4 ligands strongly induce catabolic responses in chondrocytes. Modulation of TLR-mediated signaling as a therapeutic strategy would require detailed elucidation of the signaling pathways involved.