Related Experiment Video
Updated: Jul 14, 2026

Bacterial Delivery of RNAi Effectors: Transkingdom RNAi
Published on: August 18, 2010
[Effect of B-RAF-specific RNA interference on gastric cancer BGC823 cell line]
Hao Fu1, Dan-Yi Zhao, Xiu-Ju Sun
1Department of Medical Genetics, China Medical University, Shenyang 110001, China. fuhao2006@yahoo.com
Abstract:
To investigate the influence of B-RAF-specific RNA interference on the proliferation and apoptosis of gastric cancer BGC823 cell line. B-RAF-siRNA and scramble-siRNA were synthesized and transfected into BGC823 cells by TransMessenger. The expression of B-RAF gene and Bcl-2 gene in BGC823 cells was detected by RT-PCR and the level of apoptosis was evaluated in transfected cells by flow cytometry. Results showed that TransMessenger could effectively transfect B-RAF-siRNA and scramble-siRNA into BGC823 cells. B-RAF-siRNA significantly inhibited the expression of B-RAF gene and Bcl-2 gene in BGC823 cells by more than 90% to 100%. B-RAF-siRNA inhibited BGC823 cell prolifera-tion and induced apoptosis (P < 0.01). In conclusion, B-RAF-siRNA can effectively inhibit the expression of B-RAF gene and Bcl-2 gene, induce cell apoptosis and inhibit the proliferation of gastric cancer BGC823 cells.
Insights
B-RAF-specific RNA interference effectively suppressed gastric cancer cell proliferation and induced apoptosis by inhibiting B-RAF and Bcl-2 gene expression in BGC823 cells.
Area of Science:
- Molecular Biology
- Cancer Research
- Genetics
Context:
- Gastric cancer is a significant global health concern.
- The B-RAF gene plays a crucial role in cell signaling pathways.
- Targeting specific genes offers a potential therapeutic strategy for cancer treatment.
Purpose:
- To investigate the effect of B-RAF-specific RNA interference on gastric cancer BGC823 cell proliferation and apoptosis.
- To evaluate the efficacy of B-RAF siRNA in inhibiting B-RAF and Bcl-2 gene expression.
Summary:
- B-RAF-specific small interfering RNA (siRNA) and scramble-siRNA were synthesized and transfected into BGC823 cells.
- RT-PCR and flow cytometry were used to assess gene expression and apoptosis levels.
- B-RAF-siRNA significantly inhibited B-RAF and Bcl-2 gene expression (>90%) and suppressed cell proliferation while inducing apoptosis (P < 0.01).
Impact:
- B-RAF-siRNA demonstrates potential as a therapeutic agent for gastric cancer.
- This study provides evidence for targeting the B-RAF pathway in gastric cancer treatment.
- The findings contribute to understanding the molecular mechanisms underlying gastric cancer progression and apoptosis.
Related Concept Videos
Experimental RNAi
RNA 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...
Leaky Scanning
