Journal: OncoTargets and therapy
Article Title: Downregulation of DcR3 sensitizes hepatocellular carcinoma cells to TRAIL-induced apoptosis
doi: 10.2147/OTT.S127202
Figure Lengend Snippet: Silencing DcR3 combined TRAIL (100 ng/mL) can increase the expression of DR5. Notes: ( A ) The expression of DR4 and DR5 was examined by Western blot. GAPHD was used as a loading control. The differences of DR5 among groups were significant ( P <0.001). ( B ) HepG2 cells pretreated with neutralizing antibodies against DR4 and DR5 for 1 h and treated with TRAIL (100 ng/mL) for 24 h. Apoptosis was analyzed by Annexin-V/PI assay. ( C ) The caspase-8 activity was determined fluorometrically in cell extracts using Ac-IETD-AFC as the fluorogenic substrate. P <0.01. Data in the bar graphs represent the mean ± SD of three repeated experiments. Abbreviations: DcR, decoy receptor; h, hours; PI, propidium iodide; SD, standard deviation; TRAIL, tumor necrosis factor-related apoptosis-inducing ligand.
Article Snippet: DcR3 polyclonal antibody, recombinant human TRAIL (rhTRAIL), and neutralizing antibodies against TRAIL-R1 (DR4) and TRAIL-R2 (DR5) were purchased from R&D Systems (Minneapolis, MN, USA).
Techniques: Expressing, Western Blot, Activity Assay, Standard Deviation