Research Paper Volume 13, Issue 7 pp 9820—9837

Inhibition of HDAC6 by Tubastatin A reduces chondrocyte oxidative stress in chondrocytes and ameliorates mouse osteoarthritis by activating autophagy

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Figure 5. Inhibition of HDAC6 by TubA activates autophagy. (A, B) Western blotting and quantification of autophagic markers in each group. Chondrocytes were treated with TubA for 6 hours. (C, D) IF staining and quantification of LC3 in each mouse group, scale bar = 50 μm, scale bar (enlarged) = 10 μm. (E, F) IF staining and quantification of p62 in each mouse group, scale bar = 50 μm, scale bar (enlarged) = 10 μm. (G, H) Chondrocytes were treated with TBHP, TBHP + TubA for 6 hours, the co-localization of LC3 (green) and Lamp2 (red) were captured by IF staining and quantitatively analysed, scale bar = 50 μm, scale bar (enlarged) = 10 μm. N = 5, GAPDH was the loading control, significance: *P<0.05, **P<0.01, ***P<0.001.