Journal: World Journal of Stem Cells
Article Title: RNA interference-mediated osteoprotegerin silencing increases the receptor activator of nuclear factor-kappa B ligand/osteoprotegerin ratio and promotes osteoclastogenesis
doi: 10.4252/wjsc.v17.i4.101290
Figure Lengend Snippet: The mRNA levels of receptor activator of nuclear factor-kappa B ligand and osteoprotegerin genes in each group. A and B: On the 3 rd , 7 th , 14 th , and 21 st day post-transfection, real-time quantitative polymerase chain reaction was used to evaluate the mRNA levels of osteoprotegerin (OPG) (A) and receptor activator of nuclear factor-kappa B ligand (RANKL) (B) in each group. The experimental group, “shOPG”, represents OPG gene-silenced bone marrow-derived mesenchymal stem cells (BMSCs) transfected with shOPG, while the control groups, “shScr” and “control”, represent BMSCs transfected with a scramble vector and untreated BMSCs, respectively. Compared to the shScr and control groups, RANKL was upregulated in shOPG-transfected BMSCs, particularly on day 3. Conversely, OPG expression was downregulated in shOPG-transfected BMSCs compared to the shScr and control groups (mean ± SEM, n = 3 experiments). a P < 0.05; b P < 0.01. BMSC: Bone marrow-derived mesenchymal stem cell; OPG: Osteoprotegerin; RANKL: Receptor activator of nuclear factor-kappa B ligand.
Article Snippet: Transfer the separated proteins to a polyvinylidene fluoride membrane (Abcam, ab133411) and incubate with mouse monoclonal antibodies against RANKL (SC 52950) and OPG (SC 390518) from Santa Cruz Biotechnology, CA, United States, and β-actin (CB100997M) mouse monoclonal antibody from California Bioscience, California, United States (diluted at 1:1000) following the manufacturer’s instructions, together (diluted at 1:200).
Techniques: Transfection, Real-time Polymerase Chain Reaction, Derivative Assay, Control, Plasmid Preparation, Expressing