Lycorine inhibits cell proliferation in a dose-dependent manner in the abovementioned 4 PCa cell lines, and the IC50 ranged from 5 μM to 10 μM., it also shows Lycorine has little effects on PNT1A cell's proliferation.
SCAP (SREBF chaperone) is an ER-toGolgi transport protein, undergoes a conformational change, and regulates/preserves SREBFs in the ER by forming a complex with INSIG1 (insulin induced gene 1).
Lycorine (5-40 μM; 16 hours) significantly suppresses SREBFs activity (up to -70%) in a dosedependent manner and does not cause obvious cytotoxicity in cells.
Lycorine (10-20 μM; 2-16 hours) dose- and time-dependently decreases the mature SREBF1 and SREBF2 proteins in HL-7702 cells.
Lycorine (20 μM; 16 hours) neither activates NR1H3 transcription nor affect NR1H3 target genes, including ABCG5 and ABCG8, but Sterols activates NR1H3 transcription activity.
Lycorine hydrochloride (0-25 μM; 48 hours) treatment markedly suppresses the expression of vascular endothelial (VE)-cadherin in a dose-dependent manner and also slightly diminishes the expression of Sema4D in C8161 cells. However, the expression of the other six genes is not affected.
Lycorine hydrochloride (0-25 μM; 48 hours) treatment markedly reduces VE-cadherin protein levels in C8161 cells in a dose-dependent fashion.
Cell Viability Assay
Cell Line: |
HL-7702/SRE-Luc cells |
Concentration: |
16 hours |
Incubation Time: |
5 μM; 10 μM; 20 μM; 40 μM |
Result: |
Had no cytotoxicity on HL-7702 cells. |
Western Blot Analysis
Cell Line: |
HL-7702/SRE-Luc cells |
Concentration: |
2 hours, 4 hours, 8 hours, 12 hours, 16 hours |
Incubation Time: |
10 μM; 20 μM |
Result: |
Decreased p-SREBF1, m-SREBF1, p-SREBF2 and p-SREBF1 protein expression. |
RT-PCR
Cell Line: |
C8161 cells |
Concentration: |
0 μM, 1.56 μM, 3.13 μM, 6.25 μM, 12.5 μM, 25 μM |
Incubation Time: |
48 hours |
Result: |
Markedly suppressed the expression of VE-cadherin in a dose-dependent manner and also slightly diminished the expression of Sema4D in C8161 cells. |