Related Experiment Video
Updated: Mar 19, 2026
An In Vitro Protocol for Evaluating MicroRNA Levels, Functions, and Associated Target Genes in Tumor Cells
Published on: May 21, 2019
[Small RNA interference-mediated ADP-ribosylation factor 6 silencing inhibits proliferation, migration and invasion
Xiong-Wei Shan1, Shi-Dong Lv, Xiao-Ming Yu
1Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
Objective:
To investigate the effects of silencing ADP-ribosylation factor 6 (Arf6) on the proliferation, migration, and invasion of prostate cancer cell line PC-3 and the possible molecular mechanisms.
Methods:
Three Arf6-specific small interfering RNA (siRNA) were transfected into cultured prostate cancer cell line PC-3. Arf6 expression was examined by real-time PCR and Western blotting. MTT assay, wound healing assay, and Transwell migration and invasion assay were used to observe the effect of Arf6 silencing on the proliferation, migration, and invasion ability of PC-3 cells. The levels of phosphorylated extracellular signal-regulated kinase 1/2 (p-ERK1/2), ERK1/2, p-AKT, AKT and Rac1 were detected by Western blotting.
Results:
Transfection of siRNA-3 resulted in significantly decreased Arf6 mRNA and protein expression with inhibition rates of (91.88±3.13)% and (86.37±0.57)%, respectively. Arf6 silencing by siRNA-3 markedly suppressed the proliferation, migration and invasion of PC-3 cells and reduced the expression levels of p-ERK1/2 and Rac1.
Conclusion:
Silencing of Arf6 efficiently inhibits the proliferation, migration, and invasion of PC-3 cells in vitro, and the underlying mechanisms may involve the down-regulation of p-ERK1/2 and Rac1.
Insights
Silencing ADP-ribosylation factor 6 (Arf6) in prostate cancer cells significantly reduces proliferation, migration, and invasion. This inhibition may involve decreased levels of phosphorylated extracellular signal-regulated kinase 1/2 (p-ERK1/2) and Rac1.
Area of Science:
- Oncology
- Molecular Biology
- Cell Biology
Background:
- Prostate cancer cell line PC-3 is a common model for studying cancer progression.
- ADP-ribosylation factor 6 (Arf6) is implicated in cell motility and invasion.
- Understanding Arf6's role is crucial for developing targeted therapies.
Purpose of the Study:
- To investigate the impact of Arf6 gene silencing on PC-3 cell behavior.
- To elucidate the molecular mechanisms underlying Arf6's influence on prostate cancer.
Main Methods:
- Arf6 gene silencing was achieved using small interfering RNA (siRNA) in PC-3 cells.
- Cell proliferation, migration, and invasion were assessed using MTT, wound healing, and Transwell assays.
- Expression levels of key proteins, including p-ERK1/2, AKT, and Rac1, were analyzed via Western blotting.
Main Results:
- Arf6 silencing significantly reduced Arf6 mRNA and protein expression.
- Suppression of Arf6 markedly inhibited PC-3 cell proliferation, migration, and invasion.
- Reduced expression of phosphorylated extracellular signal-regulated kinase 1/2 (p-ERK1/2) and Rac1 was observed.
Conclusions:
- Arf6 silencing effectively inhibits prostate cancer cell proliferation, migration, and invasion in vitro.
- The observed effects are potentially mediated by the down-regulation of p-ERK1/2 and Rac1 signaling pathways.
Related Concept Videos
02:15Experimental RNAi
01:23RNA Interference
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
01:23RNA Interference
02:30siRNA - Small Interfering RNAs
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
01:22MicroRNAs
01:22MicroRNAs