Journal: Advanced Science
Article Title: WAC Facilitates Mitophagy‐mediated MSC Osteogenesis and New Bone Formation via Protecting PINK1 from Ubiquitination‐Dependent Degradation
doi: 10.1002/advs.202404107
Figure Lengend Snippet: WAC positively regulated the osteogenic differentiation of MSCs in vitro. WAC is modulated in MSCs through SiRNA and Lentivirus. a) MSCs were cultured in osteogenic medium after transfection with SiRNA. ARS staining, ALP staining, and quantification were performed on day 12; b) Western blotting for protein levels of osteogenesis‐related markers (RUNX2, Osterix, OCN). Quantification is presented in the right panel; c) Immunofluorescence staining for COL1 (red) after SiRNA transfection. Quantification is shown in the right panel (Scale bar = 50 µm); d) Overexpression lentivirus of WAC transfected into MSCs, followed by culture in osteogenic medium. ARS staining, ALP staining, and quantification conducted on day 12; e) Western blotting for protein levels of osteogenesis‐related markers after overexpression lentivirus transfection; f) Immunofluorescence staining for COL1 (red) after overexpression lentivirus transfection. Quantification is shown in the right panel (Scale bar = 50 µm). All data are presented as the means ± SD, n = 6 per group in (a, c, d, f), n = 9 per group in (b, e). Statistical differences were determined using Student's t ‐test or ANOVA. ns not statistically significant, ** p < 0.01 and *** p < 0.001.
Article Snippet: Subsequently, the cells were treated with Triton X‐100 for 15 min at room temperature and incubated with goat serum for 30 min. Primary antibodies against COL1 (Cell Signaling Technology, Cat. No. 66 948), LC3B (Abcam, Cat. No. Ab192890), or TOM20 (Abcam, Cat. No. Ab186735) were added and left to incubate overnight at 4 °C.
Techniques: In Vitro, Cell Culture, Transfection, Staining, Western Blot, Immunofluorescence, Over Expression