Research Article
Curcumin Inhibits the PERK-eIF2α-CHOP Pathway through Promoting SIRT1 Expression in Oxidative Stress-induced Rat Chondrocytes and Ameliorates Osteoarthritis Progression in a Rat Model
Figure 6
EX527 abrogated the protective of curcumin in TBHP-stimulated rat chondrocytes by inhibiting the PERK-eIF2α-CHOP pathway. (a, c) Immunofluorescence staining of SIRT1 (bar: 10 μm). The fluorescence intensity of SIRT1 was analyzed by ImageJ. (b, d) The expression of SIRT1 and PERK-eIF2α-CHOP pathway-related proteins was assessed after the treatment of EX527 by western blotting analysis. All values represent (). . TBHP: tert-Butyl hydroperoxide; CUR: curcumin; EX527: a classic SIRT1 inhibitor.
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