Piceatannol induced apoptosis through up-regulation of microRNA-181a in melanoma cells
Biol. Res
; 50: 36, 2017. graf
Article
in En
| LILACS
| ID: biblio-950884
Responsible library:
CL1.1
ABSTRACT
BACKGROUND:
Melanoma took top position among the lethal cancers and, despite there have been some great attempts made to increase the natural life of patients with metastatic disease, long-lasting and complete remissions are few. Piceatannol, owns the similar function as resveratrol, has been defined as an anti-cancer agent playing important role in inhibition of proliferation, migration and metastasis in various cancer. Thus, we aim to investigate the anti-cancer effect and mechanisms of piceatannol in melanoma cells.METHODS:
Melanoma cell lines WM266-4 and A2058 were treated either with or without piceatannol. Cell viability and cell apoptosis were assessed by using MTT and Annexin V/PI assay, respectively. Cells were transfected with specific miRNA using Lipfectamine 2000. miRNA bingding ability to 3'-UTR region within specific gene was assed by firefly luciferase analysis. Gene and protein expression was eveluated by qRT-PCR and western blot analysis, respectively.RESULTS:
Our study showed that piceatannol inhibited WM266-4 and A2058 cells growth and induced apoptosis. Totally, 16 differentially expressed miRNAs were screened out including 8 up-regulated and 8 down-regulated miRNAs. Expression level of miR-181a is significantly higher in piceatannol-treated cells than normal control and is lower in melanoma cancer tissues than its adjacent normal tissues. Bcl-2 is a target gene of miR-181a. Moreover, silencing of miR-181a reverses the decrease of cell viability induced by piceatannol in WM266-4 and A2058 cells. Taken together, present study uncovered the ability of piceatannol to repress melanoma cell growth and clarified the contribution of miR-181a in the anticancer role of piceatannol.CONCLUSION:
The present study proposes that piceatannol can be taken into account to be a hopeful anticancer agent for melanoma.Key words
Full text:
1
Index:
LILACS
Main subject:
Stilbenes
/
Gene Expression Regulation, Neoplastic
/
Anticarcinogenic Agents
/
Apoptosis
/
MicroRNAs
/
Melanoma
Limits:
Humans
Language:
En
Journal:
Biol. Res
Journal subject:
BIOLOGIA
Year:
2017
Type:
Article