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Changes of main ECM components during chondrogenesis
| ECM protein | Mesenchyme | Pre-cartilage matrix | Cartilage matrix |
| Collagen I | Yes | Yes | No |
| Collagen II | No | No | Yes |
| Collagen IX | No | No | Yes |
| Fibronectin | Yes | Yes | Yes |
| Tenascin-C | No | Yes | No |
| Aggrecan | No | No | Yes |
| Versican | Yes | Yes | Yes |
