Pinostilbene (0- 40 μM; 24 hours, 48 hours) does not cause significant inhibition on the growth of normal colon cells.
Pinostilbene (20 μM, 40 μM; 24 hours, 48 hours) causes a significant and dose-dependent increase in the percentage of cells in S phase in both HCT116 and HT29 cells compared to the control cells.
Pinostilbene at μM also induces a modest increase of cell population in G2/M phase in HT29 cells.
Pinostilbene(20 μM, 40 μM; 24 hours, 48 hours) modulates expression of key signaling proteins related to cell proliferation and apoptosis.
Pinostilbene also acts as a resveratrol methylated derivative and displays protective effects against 6-hydroxydopamine-induced neurotoxicity in SH-SY5Y cells.
Cell Viability Assay
Cell Line: | HCT116 cells, HT29 cells |
Concentration: | 24 hours, 48 hours |
Incubation Time: | 0-100 μM |
Result: | Inhibited the growth of two human colon cancer cells. |
Apoptosis Analysis
Cell Line: | HCT116 cells, HT29 cells |
Concentration: | 20 μM, 40 μM |
Incubation Time: | 24 hours, 48 hours |
Result: | Caused a significant and dose-dependent increase in the percentage of cells in S phase. |
Cell Viability Assay
Cell Line: | HCT116 cells |
Concentration: | 20 μM,40 μM |
Incubation Time: | 24 hours, 48 hours |
Result: | Significantly increased the expression levels of p53, Bax, cleaved caspase-3, cleaved PARP and p21 Cip1/Waf1 , while decreased the expression levels of cyclin E and p-Rb. |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
紫檀芪 | 3,5-dimethoxy-4'-hydroxy-trans-stilbene | 537-42-8 | C16H16O3 | 256.301 |
3,4',5-三甲氧基-反-二苯代乙烯 | (E)-3,4',5-Trimethoxystilbene | 22255-22-7 | C17H18O3 | 270.328 |
白藜芦醇 | (E)-5-[2-4-(hydroxyphenyl)ethenyl]-1,3-benzenediol | 501-36-0 | C14H12O3 | 228.247 |
The stilbene compound resveratrol was glycosylated to give its 4′-O-β-D-glucoside as the major product in addition to its 3-O-β-D-glucoside by a plant glucosyltransferase from Phytolacca americana expressed in recombinant Escherichia coli. This enzyme transformed pterostilbene to its 4′-O-β-D-glucoside, and converted pinostilbene to its 4′-O-β-D-glucoside as a major product and its 3-O-β-D-glucoside as a minor product. An analysis of antioxidant capacity showed that the above stilbene glycosides had lower oxygen radical absorbance capacity (ORAC) values than those of the corresponding stilbene aglycones. The 3-O-β-D-glucoside of resveratrol showed the highest ORAC value among the stilbene glycosides tested, and pinostilbene had the highest value among the stilbene compounds. The tyrosinase inhibitory activities of the stilbene aglycones were improved by glycosylation; the stilbene glycosides had higher activities than the stilbene aglycones. Resveratrol 3-O-β-D-glucoside had the highest tyrosinase inhibitory activity among the stilbene compounds tested.