Related Experiment Video
Updated: May 19, 2026
10:00
Controllable Ion Channel Expression through Inducible Transient Transfection
Published on: February 17, 2017
A rapid and convenient method to enhance transgenic expression in target cells
Chia-Hung Chen1, Yen-Ku Liu, Yu-Ling Lin
1Institute of Molecular Medicine and Bioengineering, National Chiao Tung University, Hsin-Chu, Taiwan, Republic of China.
Preparative Biochemistry & Biotechnology
|August 18, 2012
Summary
This study developed a novel gene therapy approach combining a targeted delivery system with a synthetic promoter to enhance specific expression in cancer cells. This strategy shows promise for more effective in vivo gene therapy applications.
Area of Science:
- Biotechnology
- Molecular Biology
- Cancer Research
Background:
- Gene therapy offers potential for cancer treatment but faces challenges with delivery system specificity and promoter efficacy.
- Current methods struggle to achieve precise transgenic expression in target cells.
Purpose of the Study:
- To develop a novel gene therapy strategy by combining a partially specific delivery system with a partially specific promoter.
- To enhance specifically transgenic expression in target cancer cells.
Main Methods:
- Assayed tumor-related transcription factors (NF-κB, CREB, HIF-1) to construct a transcription factor-based synthetic promoter (TSP).
- Designed a multifunctional peptide (RGD-4C-HA) to complex with polyethyleneimine (PEI) for targeted delivery to integrin αvβ3 on B16F10 cells.
- Combined the PEI-peptide complex with the TSP for enhanced specific gene expression.
Main Results:
- The constructed TSP demonstrated active and partially cell-type-specific expression.
- The RGD-4C-HA peptide effectively associated with PEI, enabling specific targeting in vitro.
- The combination of PEI-peptide complex and TSP significantly enhanced specific transgenic expression in B16F10 cells.
Conclusions:
- A combined strategy of a partially specific delivery system and promoter can achieve enhanced specific transgenic expression.
- This approach shows potential for improving the specificity of gene therapy in vivo.
Related Concept Videos
00:53Transgenic Organisms
Overview
02:50Transgenic Plants
Recombinant DNA technology called transgenesis is often used to add a foreign gene or remove a detrimental gene from an organism. Such genetically modified organisms are called transgenic organisms.
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...
The first-ever transgenic plant was a tobacco plant developed in 1983 that showed resistance against the tobacco mosaic virus. Since then, many transgenic plants have been developed and commercialized for improving the agricultural, ornamental, and horticultural value of a crop plant. Transgenic...