Normal human articular chondrocytes-keen were transfected with lnc-SNHG1, lnc-SNHG1+ miR-NC, or lnc-SNHG1+ miR-16-5p, respectively and then treated with IL-1β (10 ng/ml) for 24 h. (A) Western blot was performed to detect the protein expression levels of MMP-1, MMP-3, MMP-9, ADAMTS-4, ADAMTS-5, aggrecan, collagen II, i-NOS, and COX-2. (B,C,D,F) Quantitation of band intensity in (A). (E) ELISA was performed to measure the levels of IL-6 and TNF-α. ‘*’ means compared with control group P<0.05, and ‘#’ means compared with lnc-SNHG1or lnc-SNHG1+ miR-NC group P<0.05. GAPHD was used as an invariant internal control for calculating protein-fold changes.