Journal: Journal of cachexia, sarcopenia and muscle
Article Title: A novel splice variant of the human MSTN gene encodes a myostatin-specific myostatin inhibitor.
doi: 10.1002/jcsm.13314
Figure Lengend Snippet: Figure 5 Myostatin-specific inhibition by myostatin-b. HeLa cells cotransfected with Luc and Gal plasmids were treated with recombinant myostatin at concentrations of 0, 20, 40 and 60 ng/mL (A); recombinant growth differentiation factor 11 (GDF11) at concentrations of 0, 10, 20 and 30 ng/mL (B); recombinant transforming growth factor β1 (TGF-β1) at concentrations of 0, 0.5, 1 and 2 ng/mL (C); and activin A at concentrations of 0, 10, 20 and 30 ng/mL (D). In addition, the myostatin-b plasmid was cotransfected into each treated cell. The results of luciferase activity are shown. Myostatin-b inhibited myostatin signalling induced only by recombinant myostatin but not by recombinant GDF11, recombinant TGF-β1 or recombinant activin A (red bars). The data are expressed as the mean ± SEM of three independent experiments. **P < 0.01, ***P < 0.001. RLU, relative luminescence unit.
Article Snippet: After 24 h, the medium was replaced with serum-free RPMI 1640 or DMEM containing recombinant myostatin (788-G8, R&D Systems), recombinant growth differentiation factor 11 (GDF11) (1958-GD, R&D Systems), recombinant TGF-β1 (240-B/CF, R&D Systems) or recombinant activin A (338-AC/CF, R&D Systems).
Techniques: Inhibition, Recombinant, Plasmid Preparation, Luciferase, Activity Assay