Fig. 8.
sh-MYH9 decreased COL2A1, Aggrecan and Sox9, increased MMP-13 and Runx2. A After the treatment of OA mouse derived chondrocytes with sh-MYH9, MSCs-EVs and MSCs-circHIPK3-EVs, the expression changes in these key cartilage genes (COL2A1, Sox9, Runx2, Aggrecan and MMP-13) by qRT-PCR. B After OA mouse derived chondrocytes were treated with sh-MYH9, MSCs-EVs and MSCs-circHIPK3-EVs, Western blot was performed to detect the expression change in these key cartilage genes (Sox9, COL2A1, Aggrecan, Runx2 and MMP-13). *P < 0.05, **P < 0.01