Fig. 2From: Knockdown of ubiquitin-specific peptidase 39 inhibited the growth of osteosarcoma cells and induced apoptosis in vitroKnock down efficiency of USP39. a The expression level of USP 39 in different cell lines. b Microscopic images of osteosarcoma cells infected with lentivirus at MOI of 20 (magnification ×400). c Quantitative real-time RT-PCR was performed to monitor the knock down efficiency (Student’s t test, n = 3). d Western blot analysis of USP39 knockdown efficiency. **p < 0.01Back to article page