Enzyme Activity Assay Experiment |
Method |
Smo binding experiments were performed using BODIPY-Cyclopamine and cells overexpressing Smo to obtain Smo-Myc3, deletion mutants Smo CRD (amino acid deletion at positions 68 to 182) and Smo CT (amino acid deletion at positions 556 to 793) using a CMV promoter, SV40 starting point-containing expression vector. HEK 293T cells were grown on poly-D-lysine-treated glass coverslips in 12-well plates until 70% confluence, and then transfected by appropriate expression vectors (0.5g per well) using FuGene 6. Two days after transfection, HEK 293T cells were incubated with DMEM medium containing 0.5% calf serum, 5nM BODIPY-Cyclopamine and different concentrations of Purmorphamine (0, 1.5 or 5M) (1ml per well) for 1h at 37℃. Then cells overexpressing Smo were washed using 1×PBS buffer (1 ml per well), placed in DAPI-containing medium and observed using a Leica DM4500B fluorescence microscope. For binding assays using fixed cells, HEK293T cells overexpressing Smo were fixed with 3% paraformaldehyde dissolved in 1× PBS buffer (1ml per well) for 10 min at room temperature, then treated with 1× PBS buffer (1ml per well) containing 10mM glycine and 0.2% sodium azide for 5 min and washed with 1X PBS buffer (1ml per well). The medium containing Purmorphamine was then used again for 4h at room temperature. |
Cell Experiment |
Cell Line |
C3H10T1/2 cells |
Concentration |
0.5-10μM |
Treatment Time |
4 days |
Method |
C3H10T1/2 cells were amplified in T175 flasks and passage 13 cells were isolated by trypsin/EDTA and then diluted in growth medium. Using the Multi-dropTM Liquid Transfer System, the resulting cell suspension was inoculated at 2500 cells per well into black clear bottom 384-well plates with 100µl of growth medium in the wells. After incubation overnight, cells are attached to the bottom of the wells. Using the Mini TrakTM Multi-Dispensing System, each group of Purmorphamine stock solution dissolved in DMSO (500nl) was delivered to the corresponding wells, ensuring a final concentration of Purmorphamine of 5µM. Cells were then incubated at 37℃ in air with 5% CO2. After 4 days, the medium was removed and 10μl of passive lysis buffer was added to each well. 5 min later, 10μl of alkaline phosphatase substrate solution was added to each well. After incubation at room temperature for 15 min, the experimental plates were read on an Acquest high-throughput plate reader. |
Animal Experiment |
Animal Models |
N/A |
Formulation |
N/A |
Dosage |
N/A |
Administration Method |
N/A |